* [Qemu-devel] [PATCH v5 01/11] ARM: Samsung exynos4210-based boards emulation
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 02/11] ARM: exynos4210: UART support Evgeny Voevodin
` (9 subsequent siblings)
10 siblings, 0 replies; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
From: Maksim Kozlov <m.kozlov@samsung.com>
Add initial code for support of NURI and SMDKC210 boards
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
Makefile.target | 1 +
hw/exynos4210.c | 103 +++++++++++++++++++++++++++++++++++++++
hw/exynos4210.h | 63 ++++++++++++++++++++++++
hw/exynos4_boards.c | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 300 insertions(+), 0 deletions(-)
create mode 100644 hw/exynos4210.c
create mode 100644 hw/exynos4210.h
create mode 100644 hw/exynos4_boards.c
diff --git a/Makefile.target b/Makefile.target
index 3261383..fc308bf 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -336,6 +336,7 @@ obj-arm-y = integratorcp.o versatilepb.o arm_pic.o arm_timer.o
obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
obj-arm-y += versatile_pci.o
obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
+obj-arm-y += exynos4_boards.o exynos4210.o
obj-arm-y += arm_mptimer.o
obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
obj-arm-y += pl061.o
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
new file mode 100644
index 0000000..62d0ad5
--- /dev/null
+++ b/hw/exynos4210.c
@@ -0,0 +1,103 @@
+/*
+ * Samsung exynos4210 SoC emulation
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved.
+ * Maksim Kozlov <m.kozlov@samsung.com>
+ * Evgeny Voevodin <e.voevodin@samsung.com>
+ * Igor Mitsyanko <i.mitsyanko@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "boards.h"
+#include "sysemu.h"
+#include "arm-misc.h"
+#include "exynos4210.h"
+
+#define EXYNOS4210_CHIPID_ADDR 0x10000000
+
+static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43,
+ 0x09, 0x00, 0x00, 0x00 };
+
+
+Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
+ unsigned long ram_size)
+{
+ qemu_irq cpu_irq[4];
+ int n;
+ Exynos4210State *s = g_new(Exynos4210State, 1);
+ qemu_irq *irqp;
+ unsigned long mem_size;
+
+ for (n = 0; n < smp_cpus; n++) {
+ s->env[n] = cpu_init("cortex-a9");
+ if (!s->env[n]) {
+ fprintf(stderr, "Unable to find CPU %d definition\n", n);
+ exit(1);
+ }
+ /* Create PIC controller for each processor instance */
+ irqp = arm_pic_init_cpu(s->env[n]);
+
+ /*
+ * Get GICs gpio_in cpu_irq to connect a combiner to them later.
+ * Use only IRQ for a while.
+ */
+ cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
+ }
+
+ /*** Memory ***/
+
+ /* Chip-ID and OMR */
+ memory_region_init_ram_ptr(&s->chipid_mem, NULL, "exynos4210.chipid",
+ sizeof(chipid_and_omr), chipid_and_omr);
+ memory_region_set_readonly(&s->chipid_mem, true);
+ memory_region_add_subregion(system_mem, EXYNOS4210_CHIPID_ADDR,
+ &s->chipid_mem);
+
+ /* Internal ROM */
+ memory_region_init_ram(&s->irom_mem, NULL, "exynos4210.irom",
+ EXYNOS4210_IROM_SIZE);
+ memory_region_set_readonly(&s->irom_mem, true);
+ memory_region_add_subregion(system_mem, EXYNOS4210_IROM_BASE_ADDR,
+ &s->irom_mem);
+ /* mirror of 0x0 – 0x10000 */
+ memory_region_init_alias(&s->irom_alias_mem, "exynos4210.irom_alias",
+ &s->irom_mem, 0, EXYNOS4210_IROM_SIZE);
+ memory_region_set_readonly(&s->irom_alias_mem, true);
+ memory_region_add_subregion(system_mem, EXYNOS4210_IROM_MIRROR_BASE_ADDR,
+ &s->irom_alias_mem);
+
+ /* Internal RAM */
+ memory_region_init_ram(&s->iram_mem, NULL, "exynos4210.iram",
+ EXYNOS4210_IRAM_SIZE);
+ memory_region_set_readonly(&s->iram_mem, false);
+ memory_region_add_subregion(system_mem, EXYNOS4210_IRAM_BASE_ADDR,
+ &s->iram_mem);
+
+ /* DRAM */
+ mem_size = ram_size;
+ if (mem_size > EXYNOS4210_DRAM_MAX_SIZE) {
+ memory_region_init_ram(&s->dram1_mem, NULL, "exynos4210.dram1",
+ mem_size - EXYNOS4210_DRAM_MAX_SIZE);
+ memory_region_add_subregion(system_mem, EXYNOS4210_DRAM1_BASE_ADDR,
+ &s->dram1_mem);
+ mem_size = EXYNOS4210_DRAM_MAX_SIZE;
+ }
+ memory_region_init_ram(&s->dram0_mem, NULL, "exynos4210.dram0", mem_size);
+ memory_region_add_subregion(system_mem, EXYNOS4210_DRAM0_BASE_ADDR,
+ &s->dram0_mem);
+
+ return s;
+}
diff --git a/hw/exynos4210.h b/hw/exynos4210.h
new file mode 100644
index 0000000..56b1438
--- /dev/null
+++ b/hw/exynos4210.h
@@ -0,0 +1,63 @@
+/*
+ * Samsung exynos4210 SoC emulation
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved.
+ * Maksim Kozlov <m.kozlov@samsung.com>
+ * Evgeny Voevodin <e.voevodin@samsung.com>
+ * Igor Mitsyanko <i.mitsyanko@samsung.com>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifndef EXYNOS4210_H_
+#define EXYNOS4210_H_
+
+#include "qemu-common.h"
+#include "memory.h"
+
+#define EXYNOS4210_MAX_CPUS 2
+
+#define EXYNOS4210_DRAM0_BASE_ADDR 0x40000000
+#define EXYNOS4210_DRAM1_BASE_ADDR 0xa0000000
+#define EXYNOS4210_DRAM_MAX_SIZE 0x60000000 /* 1.5 GB */
+
+#define EXYNOS4210_IROM_BASE_ADDR 0x00000000
+#define EXYNOS4210_IROM_SIZE 0x00010000 /* 64 KB */
+#define EXYNOS4210_IROM_MIRROR_BASE_ADDR 0x02000000
+#define EXYNOS4210_IROM_MIRROR_SIZE 0x00010000 /* 64 KB */
+
+#define EXYNOS4210_IRAM_BASE_ADDR 0x02020000
+#define EXYNOS4210_IRAM_SIZE 0x00020000 /* 128 KB */
+
+#define EXYNOS4210_BASE_BOOT_ADDR EXYNOS4210_DRAM0_BASE_ADDR
+
+typedef struct Exynos4210State {
+ CPUState * env[EXYNOS4210_MAX_CPUS];
+
+ MemoryRegion chipid_mem;
+ MemoryRegion iram_mem;
+ MemoryRegion irom_mem;
+ MemoryRegion irom_alias_mem;
+ MemoryRegion dram0_mem;
+ MemoryRegion dram1_mem;
+
+} Exynos4210State;
+
+Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
+ unsigned long ram_size);
+
+#endif /* EXYNOS4210_H_ */
diff --git a/hw/exynos4_boards.c b/hw/exynos4_boards.c
new file mode 100644
index 0000000..b710b06
--- /dev/null
+++ b/hw/exynos4_boards.c
@@ -0,0 +1,133 @@
+/*
+ * Samsung exynos4 SoC based boards emulation
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved.
+ * Maksim Kozlov <m.kozlov@samsung.com>
+ * Evgeny Voevodin <e.voevodin@samsung.com>
+ * Igor Mitsyanko <i.mitsyanko@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "sysemu.h"
+#include "arm-misc.h"
+#include "exec-memory.h"
+#include "exynos4210.h"
+#include "boards.h"
+
+#undef DEBUG
+
+//#define DEBUG
+
+#ifdef DEBUG
+ #undef PRINT_DEBUG
+ #define PRINT_DEBUG(fmt, args...) \
+ do { \
+ fprintf(stderr, " [%s:%d] "fmt, __func__, __LINE__, ##args); \
+ } while (0)
+#else
+ #define PRINT_DEBUG(fmt, args...) do {} while (0)
+#endif
+
+typedef enum exynos4_board_type {
+ EXYNOS4_BOARD_NURI,
+ EXYNOS4_BOARD_SMDKC210,
+ EXYNOS4_NUM_OF_BOARDS
+} exynos4_board_type;
+
+static int exynos4_board_id[EXYNOS4_NUM_OF_BOARDS] = {
+ [EXYNOS4_BOARD_NURI] = 0xD33,
+ [EXYNOS4_BOARD_SMDKC210] = 0xB16,
+};
+
+static unsigned long exynos4_board_ram_size[EXYNOS4_NUM_OF_BOARDS] = {
+ [EXYNOS4_BOARD_NURI] = 0x40000000,
+ [EXYNOS4_BOARD_SMDKC210] = 0x40000000,
+};
+
+static struct arm_boot_info exynos4_board_binfo = {
+ .loader_start = EXYNOS4210_BASE_BOOT_ADDR,
+};
+
+static Exynos4210State *exynos4_boards_init_common(
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename,
+ exynos4_board_type board_type)
+{
+ exynos4_board_binfo.ram_size = exynos4_board_ram_size[board_type];
+ exynos4_board_binfo.board_id = exynos4_board_id[board_type];
+ exynos4_board_binfo.nb_cpus = smp_cpus;
+ exynos4_board_binfo.kernel_filename = kernel_filename;
+ exynos4_board_binfo.initrd_filename = initrd_filename;
+ exynos4_board_binfo.kernel_cmdline = kernel_cmdline;
+
+ PRINT_DEBUG("\n ram_size: %luMiB [0x%08lx]\n"
+ " kernel_filename: %s\n"
+ " kernel_cmdline: %s\n"
+ " initrd_filename: %s\n",
+ exynos4_board_ram_size[board_type]/1048576,
+ exynos4_board_ram_size[board_type],
+ kernel_filename,
+ kernel_cmdline,
+ initrd_filename);
+
+ return exynos4210_init(get_system_memory(),
+ exynos4_board_ram_size[board_type]);
+}
+
+static void nuri_init(ram_addr_t ram_size,
+ const char *boot_device,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename, const char *cpu_model)
+{
+ exynos4_boards_init_common(kernel_filename, kernel_cmdline,
+ initrd_filename, EXYNOS4_BOARD_NURI);
+
+ arm_load_kernel(first_cpu, &exynos4_board_binfo);
+}
+
+static void smdkc210_init(ram_addr_t ram_size,
+ const char *boot_device,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename, const char *cpu_model)
+{
+ exynos4_boards_init_common(kernel_filename,
+ kernel_cmdline, initrd_filename, EXYNOS4_BOARD_SMDKC210);
+
+ arm_load_kernel(first_cpu, &exynos4_board_binfo);
+}
+
+static QEMUMachine nuri_machine = {
+ .name = "nuri",
+ .desc = "Samsung NURI board (Exynos4210)",
+ .init = nuri_init,
+ .max_cpus = EXYNOS4210_MAX_CPUS,
+};
+
+static QEMUMachine smdkc210_machine = {
+ .name = "smdkc210",
+ .desc = "Samsung SMDKC210 board (Exynos4210)",
+ .init = smdkc210_init,
+ .max_cpus = EXYNOS4210_MAX_CPUS,
+};
+
+static void exynos4_machine_init(void)
+{
+ qemu_register_machine(&nuri_machine);
+ qemu_register_machine(&smdkc210_machine);
+}
+
+machine_init(exynos4_machine_init);
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* [Qemu-devel] [PATCH v5 02/11] ARM: exynos4210: UART support
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 01/11] ARM: Samsung exynos4210-based boards emulation Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 12:11 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 03/11] hw/sysbus.h: Increase maximum number of device IRQs Evgeny Voevodin
` (8 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
From: Maksim Kozlov <m.kozlov@samsung.com>
Add basic support of exynos4210 UART
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
Makefile.target | 2 +-
hw/exynos4210.c | 24 ++
hw/exynos4210.h | 9 +
hw/exynos4210_uart.c | 670 ++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 704 insertions(+), 1 deletions(-)
create mode 100644 hw/exynos4210_uart.c
diff --git a/Makefile.target b/Makefile.target
index fc308bf..0246947 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -336,7 +336,7 @@ obj-arm-y = integratorcp.o versatilepb.o arm_pic.o arm_timer.o
obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
obj-arm-y += versatile_pci.o
obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
-obj-arm-y += exynos4_boards.o exynos4210.o
+obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o
obj-arm-y += arm_mptimer.o
obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
obj-arm-y += pl061.o
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
index 62d0ad5..afef4cb 100644
--- a/hw/exynos4210.c
+++ b/hw/exynos4210.c
@@ -26,8 +26,19 @@
#include "arm-misc.h"
#include "exynos4210.h"
+
#define EXYNOS4210_CHIPID_ADDR 0x10000000
+/* UART's definitions */
+#define EXYNOS4210_UART0_BASE_ADDR 0x13800000
+#define EXYNOS4210_UART1_BASE_ADDR 0x13810000
+#define EXYNOS4210_UART2_BASE_ADDR 0x13820000
+#define EXYNOS4210_UART3_BASE_ADDR 0x13830000
+#define EXYNOS4210_UART0_FIFO_SIZE 256
+#define EXYNOS4210_UART1_FIFO_SIZE 64
+#define EXYNOS4210_UART2_FIFO_SIZE 16
+#define EXYNOS4210_UART3_FIFO_SIZE 16
+
static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43,
0x09, 0x00, 0x00, 0x00 };
@@ -99,5 +110,18 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
memory_region_add_subregion(system_mem, EXYNOS4210_DRAM0_BASE_ADDR,
&s->dram0_mem);
+ /*** UARTs ***/
+ exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR,
+ EXYNOS4210_UART0_FIFO_SIZE, 0, NULL, NULL);
+
+ exynos4210_uart_create(EXYNOS4210_UART1_BASE_ADDR,
+ EXYNOS4210_UART1_FIFO_SIZE, 1, NULL, NULL);
+
+ exynos4210_uart_create(EXYNOS4210_UART2_BASE_ADDR,
+ EXYNOS4210_UART2_FIFO_SIZE, 2, NULL, NULL);
+
+ exynos4210_uart_create(EXYNOS4210_UART3_BASE_ADDR,
+ EXYNOS4210_UART3_FIFO_SIZE, 3, NULL, NULL);
+
return s;
}
diff --git a/hw/exynos4210.h b/hw/exynos4210.h
index 56b1438..4dc119a 100644
--- a/hw/exynos4210.h
+++ b/hw/exynos4210.h
@@ -60,4 +60,13 @@ typedef struct Exynos4210State {
Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
unsigned long ram_size);
+/*
+ * exynos4210 UART
+ */
+DeviceState *exynos4210_uart_create(target_phys_addr_t addr,
+ int fifo_size,
+ int channel,
+ CharDriverState *chr,
+ qemu_irq irq);
+
#endif /* EXYNOS4210_H_ */
diff --git a/hw/exynos4210_uart.c b/hw/exynos4210_uart.c
new file mode 100644
index 0000000..99fedc9
--- /dev/null
+++ b/hw/exynos4210_uart.c
@@ -0,0 +1,670 @@
+/*
+ * exynos4210 UART Emulation
+ *
+ * Copyright (C) 2011 Samsung Electronics Co Ltd.
+ * Maksim Kozlov, <m.kozlov@samsung.com>
+ *
+ * Created on: 07.2011
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "sysbus.h"
+#include "sysemu.h"
+#include "qemu-char.h"
+
+#include "exynos4210.h"
+
+#undef DEBUG_UART
+#undef DEBUG_UART_EXTEND
+#undef DEBUG_IRQ
+#undef DEBUG_Rx_DATA
+#undef DEBUG_Tx_DATA
+
+
+//#define DEBUG_UART
+//#define DEBUG_UART_EXTEND
+//#define DEBUG_IRQ
+//#define DEBUG_Rx_DATA
+//#define DEBUG_Tx_DATA
+
+
+#define PRINT_DEBUG(fmt, args...) \
+ do {} while (0)
+#define PRINT_DEBUG_EXTEND(fmt, args...) \
+ do {} while (0)
+#define PRINT_ERROR(fmt, args...) \
+ do { \
+ fprintf(stderr, " [%s:%d] "fmt, __func__, __LINE__, ##args); \
+ } while (0)
+
+#ifdef DEBUG_UART
+
+#undef PRINT_DEBUG
+#define PRINT_DEBUG(fmt, args...) \
+ do { \
+ fprintf(stderr, " [%s:%d] "fmt, __func__, __LINE__, ##args); \
+ } while (0)
+
+#ifdef DEBUG_UART_EXTEND
+
+#undef PRINT_DEBUG_EXTEND
+#define PRINT_DEBUG_EXTEND(fmt, args...) \
+ do { \
+ fprintf(stderr, " [%s:%d] "fmt, __func__, __LINE__, ##args); \
+ } while (0)
+
+#endif /* EXTEND */
+#endif
+
+
+/*
+ * Offsets for UART registers relative to SFR base address
+ * for UARTn
+ *
+ */
+#define ULCON 0x0000 /* Line Control */
+#define UCON 0x0004 /* Control */
+#define UFCON 0x0008 /* FIFO Control */
+#define UMCON 0x000C /* Modem Control */
+#define UTRSTAT 0x0010 /* Tx/Rx Status */
+#define UERSTAT 0x0014 /* Rx Error Status */
+#define UFSTAT 0x0018 /* FIFO Status */
+#define UMSTAT 0x001C /* Modem Status */
+#define UTXH 0x0020 /* Transmit Buffer */
+#define URXH 0x0024 /* Receive Buffer */
+#define UBRDIV 0x0028 /* Baud Rate Divisor */
+#define UFRACVAL 0x002C /* Divisor Fractional Value */
+#define UINTP 0x0030 /* Interrupt Pending */
+#define UINTSP 0x0034 /* Interrupt Source Pending */
+#define UINTM 0x0038 /* Interrupt Mask */
+
+/*
+ * for indexing register in the uint32_t array
+ *
+ * 'reg' - register offset (see offsets definitions above)
+ *
+ */
+#define I_(reg) (reg / sizeof(uint32_t))
+
+typedef struct Exynos4210UartReg {
+ const char *name; /* the only reason is the debug output */
+ target_phys_addr_t offset;
+ uint32_t reset_value;
+} Exynos4210UartReg;
+
+static Exynos4210UartReg exynos4210_uart_regs[] = {
+ {"ULCON" , ULCON , 0x00000000},
+ {"UCON" , UCON , 0x00003000},
+ {"UFCON" , UFCON , 0x00000000},
+ {"UMCON" , UMCON , 0x00000000},
+ {"UTRSTAT" , UTRSTAT , 0x00000006}, /* RO */
+ {"UERSTAT" , UERSTAT , 0x00000000}, /* RO */
+ {"UFSTAT" , UFSTAT , 0x00000000}, /* RO */
+ {"UMSTAT" , UMSTAT , 0x00000000}, /* RO */
+ {"UTXH" , UTXH , 0x5c5c5c5c}, /* WO, undefined reset value*/
+ {"URXH" , URXH , 0x00000000}, /* RO */
+ {"UBRDIV" , UBRDIV , 0x00000000},
+ {"UFRACVAL", UFRACVAL, 0x00000000},
+ {"UINTP" , UINTP , 0x00000000},
+ {"UINTSP" , UINTSP , 0x00000000},
+ {"UINTM" , UINTM , 0x00000000},
+};
+
+#define EXYNOS4210_UART_REGS_MEM_SIZE 0x3c
+
+/* UART FIFO Control */
+#define UFCON_FIFO_ENABLE 0x1
+#define UFCON_Rx_FIFO_RESET 0x2
+#define UFCON_Tx_FIFO_RESET 0x4
+#define UFCON_Tx_FIFO_TRIGGER_LEVEL_SHIFT 8
+#define UFCON_Tx_FIFO_TRIGGER_LEVEL \
+ (7 << UFCON_Tx_FIFO_TRIGGER_LEVEL_SHIFT)
+#define UFCON_Rx_FIFO_TRIGGER_LEVEL_SHIFT 4
+#define UFCON_Rx_FIFO_TRIGGER_LEVEL \
+ (7 << UFCON_Rx_FIFO_TRIGGER_LEVEL_SHIFT)
+
+/* Uart FIFO Status */
+#define UFSTAT_Rx_FIFO_COUNT 0xff
+#define UFSTAT_Rx_FIFO_FULL 0x100
+#define UFSTAT_Rx_FIFO_ERROR 0x200
+#define UFSTAT_Tx_FIFO_COUNT_SHIFT 16
+#define UFSTAT_Tx_FIFO_COUNT (0xff << UFSTAT_Tx_FIFO_COUNT_SHIFT)
+#define UFSTAT_Tx_FIFO_FULL_SHIFT 24
+#define UFSTAT_Tx_FIFO_FULL (1 << UFSTAT_Tx_FIFO_FULL_SHIFT)
+
+/* UART Interrupt Source Pending */
+#define UINTSP_RXD 0x1 /* Receive interrupt */
+#define UINTSP_ERROR 0x2 /* Error interrupt */
+#define UINTSP_TXD 0x4 /* Transmit interrupt */
+#define UINTSP_MODEM 0x8 /* Modem interrupt */
+
+/* UART Line Control */
+#define ULCON_IR_MODE_SHIFT 6
+#define ULCON_PARITY_SHIFT 3
+#define ULCON_STOP_BIT_SHIFT 1
+
+
+
+/* Specifies Tx/Rx Status */
+#define UTRSTAT_TRANSMITTER_EMPTY 0x4
+#define UTRSTAT_Tx_BUFFER_EMPTY 0x2
+#define UTRSTAT_Rx_BUFFER_DATA_READY 0x1
+
+typedef struct {
+ uint8_t *data;
+ uint32_t sp, rp; /* store and retrieve pointers */
+ uint32_t size;
+} Exynos4210UartFIFO;
+
+typedef struct {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+
+ uint32_t reg[EXYNOS4210_UART_REGS_MEM_SIZE];
+ Exynos4210UartFIFO rx;
+ Exynos4210UartFIFO tx;
+
+ CharDriverState *chr;
+ qemu_irq irq;
+
+ uint32_t channel;
+
+} Exynos4210UartState;
+
+
+#ifdef DEBUG_UART
+/* The only meaning of life - debugging. This functions should be only used
+ * inside PRINT_DEBUG_... macroses
+ */
+static const char *exynos4210_uart_regname(target_phys_addr_t offset)
+{
+
+ int regs_number = sizeof(exynos4210_uart_regs)/sizeof(Exynos4210UartReg);
+ int i;
+
+ for (i = 0; i < regs_number; i++) {
+ if (offset == exynos4210_uart_regs[i].offset) {
+ return exynos4210_uart_regs[i].name;
+ }
+ }
+
+ return NULL;
+}
+#endif
+
+
+static void fifo_store(Exynos4210UartFIFO *q, uint8_t ch)
+{
+ q->data[q->sp] = ch;
+ q->sp = (q->sp + 1) % q->size;
+}
+
+static uint8_t fifo_retrieve(Exynos4210UartFIFO *q)
+{
+ uint8_t ret = q->data[q->rp];
+ q->rp = (q->rp + 1) % q->size;
+ return ret;
+}
+
+static int fifo_elements_number(Exynos4210UartFIFO *q)
+{
+ if (q->sp < q->rp) {
+ return q->size - q->rp + q->sp;
+ }
+
+ return q->sp - q->rp;
+}
+
+static int fifo_empty_elements_number(Exynos4210UartFIFO *q)
+{
+ return q->size - fifo_elements_number(q);
+}
+
+static void fifo_reset(Exynos4210UartFIFO *q)
+{
+ if (q->data != NULL) {
+ g_free(q->data);
+ q->data = NULL;
+ }
+
+ q->data = (uint8_t *)g_malloc0(q->size);
+
+ q->sp = 0;
+ q->rp = 0;
+}
+
+static uint32_t exynos4210_uart_Tx_FIFO_trigger_level(Exynos4210UartState *s)
+{
+ uint32_t level = 0;
+ uint32_t reg;
+
+ reg = (s->reg[I_(UFCON)] && UFCON_Tx_FIFO_TRIGGER_LEVEL) >>
+ UFCON_Tx_FIFO_TRIGGER_LEVEL_SHIFT;
+
+ switch (s->channel) {
+ case 0:
+ level = reg * 32;
+ break;
+ case 1:
+ case 4:
+ level = reg * 8;
+ break;
+ case 2:
+ case 3:
+ level = reg * 2;
+ break;
+ default:
+ level = 0;
+ PRINT_ERROR("Wrong UART chennel number: %d\n", s->channel);
+ }
+
+ return level;
+}
+
+static void exynos4210_uart_update_irq(Exynos4210UartState *s)
+{
+ /*
+ * The Tx interrupt is always requested if the number of data in the
+ * transmit FIFO is smaller than the trigger level.
+ */
+ if (s->reg[I_(UFCON)] && UFCON_FIFO_ENABLE) {
+
+ uint32_t count = (s->reg[I_(UFSTAT)] && UFSTAT_Tx_FIFO_COUNT) >>
+ UFSTAT_Tx_FIFO_COUNT_SHIFT;
+
+ if (count <= exynos4210_uart_Tx_FIFO_trigger_level(s)) {
+ s->reg[I_(UINTSP)] |= UINTSP_TXD;
+ }
+ }
+
+ s->reg[I_(UINTP)] = s->reg[I_(UINTSP)] & ~s->reg[I_(UINTM)];
+
+ if (s->reg[I_(UINTP)]) {
+ qemu_irq_raise(s->irq);
+
+#ifdef DEBUG_IRQ
+ fprintf(stderr, "UART%d: IRQ have been raised: %08x\n",
+ s->channel, s->reg[I_(UINTP)]);
+#endif
+
+ } else {
+ qemu_irq_lower(s->irq);
+ }
+}
+
+static void exynos4210_uart_update_parameters(Exynos4210UartState *s)
+{
+ int speed, parity, data_bits, stop_bits, frame_size;
+ QEMUSerialSetParams ssp;
+ uint64_t uclk_rate;
+
+ if (s->reg[I_(UBRDIV)] == 0) {
+ return;
+ }
+
+ frame_size = 1; /* start bit */
+ if (s->reg[I_(ULCON)] & 0x20) {
+ frame_size++; /* parity bit */
+ if (s->reg[I_(ULCON)] & 0x28) {
+ parity = 'E';
+ } else {
+ parity = 'O';
+ }
+ } else {
+ parity = 'N';
+ }
+
+ if (s->reg[I_(ULCON)] & 0x4) {
+ stop_bits = 2;
+ } else {
+ stop_bits = 1;
+ }
+
+ data_bits = (s->reg[I_(ULCON)] & 0x3) + 5;
+
+ frame_size += data_bits + stop_bits;
+
+ uclk_rate = 24000000;
+
+ speed = uclk_rate / ((16 * (s->reg[I_(UBRDIV)]) & 0xffff) +
+ (s->reg[I_(UFRACVAL)] & 0x7) + 16);
+
+ ssp.speed = speed;
+ ssp.parity = parity;
+ ssp.data_bits = data_bits;
+ ssp.stop_bits = stop_bits;
+
+ qemu_chr_fe_ioctl(s->chr, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
+
+ PRINT_DEBUG("UART%d: speed: %d, parity: %c, data: %d, stop: %d\n",
+ s->channel, speed, parity, data_bits, stop_bits);
+}
+
+static void exynos4210_uart_write(void *opaque, target_phys_addr_t offset,
+ uint64_t val, unsigned size)
+{
+ Exynos4210UartState *s = (Exynos4210UartState *)opaque;
+ uint8_t ch;
+
+ if (offset > (EXYNOS4210_UART_REGS_MEM_SIZE - sizeof(uint32_t))) {
+ hw_error("exynos4210_cmu_write: Bad offset 0x%x\n", (int)offset);
+ }
+
+ PRINT_DEBUG_EXTEND("UART%d: <0x%04x> %s <- 0x%08llx\n",
+ s->channel, offset, exynos4210_uart_regname(offset), val);
+
+ switch (offset) {
+ case ULCON:
+ case UBRDIV:
+ case UFRACVAL:
+ s->reg[I_(offset)] = val;
+ exynos4210_uart_update_parameters(s);
+ break;
+ case UFCON:
+ s->reg[I_(UFCON)] = val;
+ if (val & UFCON_Rx_FIFO_RESET) {
+ fifo_reset(&s->rx);
+ s->reg[I_(UFCON)] &= ~UFCON_Rx_FIFO_RESET;
+ PRINT_DEBUG("UART%d: Rx FIFO Reset\n", s->channel);
+ }
+ if (val & UFCON_Tx_FIFO_RESET) {
+ fifo_reset(&s->tx);
+ s->reg[I_(UFCON)] &= ~UFCON_Tx_FIFO_RESET;
+ PRINT_DEBUG("UART%d: Tx FIFO Reset\n", s->channel);
+ }
+ break;
+
+ case UTXH:
+ if (s->chr) {
+ s->reg[I_(UTRSTAT)] &= ~(UTRSTAT_TRANSMITTER_EMPTY |
+ UTRSTAT_Tx_BUFFER_EMPTY);
+ ch = (uint8_t)val;
+ qemu_chr_fe_write(s->chr, &ch, 1);
+#ifdef DEBUG_Tx_DATA
+ fprintf(stderr, "%c", ch);
+#endif
+ s->reg[I_(UTRSTAT)] |= UTRSTAT_TRANSMITTER_EMPTY |
+ UTRSTAT_Tx_BUFFER_EMPTY;
+ s->reg[I_(UINTSP)] |= UINTSP_TXD;
+ exynos4210_uart_update_irq(s);
+ }
+ break;
+
+ case UINTP:
+ s->reg[I_(UINTP)] &= ~val;
+ /* XXX: It's the assumption that it works in this way */
+ s->reg[I_(UINTSP)] &= ~val;
+ PRINT_DEBUG("UART%d: UINTP [%04x] have been cleared: %08x\n",
+ s->channel, offset, s->reg[I_(UINTP)]);
+ exynos4210_uart_update_irq(s);
+ break;
+ case UTRSTAT:
+ case UERSTAT:
+ case UFSTAT:
+ case UMSTAT:
+ case URXH:
+ PRINT_DEBUG("UART%d: Trying to write into RO register: %s [%04x]\n",
+ s->channel, exynos4210_uart_regname(offset), offset);
+ break;
+ case UINTSP:
+ /* XXX: It's the assumption that it works in this way */
+ s->reg[I_(UINTSP)] &= ~val;
+ break;
+ case UINTM:
+ s->reg[I_(UINTM)] = val;
+ exynos4210_uart_update_irq(s);
+ break;
+ case UCON:
+ case UMCON:
+ default:
+ s->reg[I_(offset)] = val;
+ break;
+ }
+}
+static uint64_t exynos4210_uart_read(void *opaque, target_phys_addr_t offset,
+ unsigned size)
+{
+ Exynos4210UartState *s = (Exynos4210UartState *)opaque;
+ uint32_t res;
+
+ if (offset > (EXYNOS4210_UART_REGS_MEM_SIZE - sizeof(uint32_t))) {
+ hw_error("exynos4210_cmu_read: Bad offset 0x%x\n", (int)offset);
+ }
+
+ switch (offset) {
+ case UERSTAT: /* Read Only */
+ res = s->reg[I_(UERSTAT)];
+ s->reg[I_(UERSTAT)] = 0;
+ return res;
+ case UFSTAT: /* Read Only */
+ s->reg[I_(UFSTAT)] = fifo_elements_number(&s->rx) & 0xff;
+ if (fifo_empty_elements_number(&s->rx) == 0) {
+ s->reg[I_(UFSTAT)] |= UFSTAT_Rx_FIFO_FULL;
+ s->reg[I_(UFSTAT)] &= ~0xff;
+ }
+ return s->reg[I_(UFSTAT)];
+ case URXH:
+ if (s->reg[I_(UFCON)] & UFCON_FIFO_ENABLE) {
+ if (fifo_elements_number(&s->rx)) {
+ res = fifo_retrieve(&s->rx);
+#ifdef DEBUG_Rx_DATA
+ fprintf(stderr, "%c", res);
+#endif
+ if (!fifo_elements_number(&s->rx)) {
+ s->reg[I_(UTRSTAT)] &= ~UTRSTAT_Rx_BUFFER_DATA_READY;
+ } else {
+ s->reg[I_(UTRSTAT)] |= UTRSTAT_Rx_BUFFER_DATA_READY;
+ }
+ } else {
+ s->reg[I_(UINTSP)] |= UINTSP_ERROR;
+ exynos4210_uart_update_irq(s);
+ res = 0;
+ }
+ } else {
+ s->reg[I_(UTRSTAT)] &= ~UTRSTAT_Rx_BUFFER_DATA_READY;
+ res = s->reg[I_(URXH)];
+ }
+ return res;
+ case UTXH:
+ PRINT_DEBUG("UART%d: Trying to read from WO register: %s [%04x]\n",
+ s->channel, exynos4210_uart_regname(offset), offset);
+ break;
+ default:
+ return s->reg[I_(offset)];
+ break;
+ }
+
+ return 0;
+}
+
+
+static const MemoryRegionOps exynos4210_uart_ops = {
+ .read = exynos4210_uart_read,
+ .write = exynos4210_uart_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int exynos4210_uart_can_receive(void *opaque)
+{
+ Exynos4210UartState *s = (Exynos4210UartState *)opaque;
+
+ return fifo_empty_elements_number(&s->rx);
+}
+
+
+static void exynos4210_uart_receive(void *opaque, const uint8_t *buf, int size)
+{
+ Exynos4210UartState *s = (Exynos4210UartState *)opaque;
+ int i;
+
+ if (s->reg[I_(UFCON)] & UFCON_FIFO_ENABLE) {
+ if (fifo_empty_elements_number(&s->rx) < size) {
+ for (i = 0; i < fifo_empty_elements_number(&s->rx); i++) {
+ fifo_store(&s->rx, buf[i]);
+ }
+ s->reg[I_(UINTSP)] |= UINTSP_ERROR;
+ s->reg[I_(UTRSTAT)] |= UTRSTAT_Rx_BUFFER_DATA_READY;
+ } else {
+ for (i = 0; i < size; i++) {
+ fifo_store(&s->rx, buf[i]);
+ }
+ s->reg[I_(UTRSTAT)] |= UTRSTAT_Rx_BUFFER_DATA_READY;
+ }
+ /* XXX: Around here we maybe should check Rx trigger level */
+ s->reg[I_(UINTSP)] |= UINTSP_RXD;
+ } else {
+ s->reg[I_(URXH)] = buf[0];
+ s->reg[I_(UINTSP)] |= UINTSP_RXD;
+ s->reg[I_(UTRSTAT)] |= UTRSTAT_Rx_BUFFER_DATA_READY;
+ }
+
+ exynos4210_uart_update_irq(s);
+}
+
+
+static void exynos4210_uart_event(void *opaque, int event)
+{
+ /*
+ * TODO: Implement this.
+ *
+ */
+}
+
+
+static void exynos4210_uart_reset(DeviceState *dev)
+{
+ Exynos4210UartState *s =
+ container_of(dev, Exynos4210UartState, busdev.qdev);
+ int regs_number = sizeof(exynos4210_uart_regs)/sizeof(Exynos4210UartReg);
+ int i;
+
+ for (i = 0; i < regs_number; i++) {
+ s->reg[I_(exynos4210_uart_regs[i].offset)] =
+ exynos4210_uart_regs[i].reset_value;
+ }
+
+ fifo_reset(&s->rx);
+ fifo_reset(&s->tx);
+
+ PRINT_DEBUG("UART%d: Rx FIFO size: %d\n", s->channel, s->rx.size);
+}
+
+static const VMStateDescription vmstate_exynos4210_uart_fifo = {
+ .name = "exynos4210.uart.fifo",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(sp, Exynos4210UartFIFO),
+ VMSTATE_UINT32(rp, Exynos4210UartFIFO),
+ VMSTATE_VBUFFER_UINT32(data, Exynos4210UartFIFO, 1, NULL, 0, size),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription vmstate_exynos4210_uart = {
+ .name = "exynos4210.uart",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT(rx, Exynos4210UartState, 1,
+ vmstate_exynos4210_uart_fifo, Exynos4210UartFIFO),
+ VMSTATE_UINT32_ARRAY(reg, Exynos4210UartState,
+ EXYNOS4210_UART_REGS_MEM_SIZE),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+DeviceState *exynos4210_uart_create(target_phys_addr_t addr,
+ int fifo_size,
+ int channel,
+ CharDriverState *chr,
+ qemu_irq irq)
+{
+ DeviceState *dev;
+ SysBusDevice *bus;
+
+ dev = qdev_create(NULL, "exynos4210.uart");
+
+ if (!chr) {
+ if (channel >= MAX_SERIAL_PORTS) {
+ hw_error("Only %d serial ports are supported by QEMU.\n",
+ MAX_SERIAL_PORTS);
+ }
+ chr = serial_hds[channel];
+ if (!chr) {
+ chr = qemu_chr_new("exynos4210.uart", "null", NULL);
+ if (!(chr)) {
+ hw_error("Can't assign serial port to UART%d.\n", channel);
+ }
+ }
+ }
+
+ qdev_prop_set_chr(dev, "chardev", chr);
+ qdev_prop_set_uint32(dev, "channel", channel);
+ qdev_prop_set_uint32(dev, "rx-size", fifo_size);
+ qdev_prop_set_uint32(dev, "tx-size", fifo_size);
+
+ bus = sysbus_from_qdev(dev);
+ qdev_init_nofail(dev);
+ if (addr != (target_phys_addr_t)-1) {
+ sysbus_mmio_map(bus, 0, addr);
+ }
+ sysbus_connect_irq(bus, 0, irq);
+
+ return dev;
+}
+
+static int exynos4210_uart_init(SysBusDevice *dev)
+{
+ Exynos4210UartState *s = FROM_SYSBUS(Exynos4210UartState, dev);
+
+ /* memory mapping */
+ memory_region_init_io(&s->iomem, &exynos4210_uart_ops, s, "exynos4210.uart",
+ EXYNOS4210_UART_REGS_MEM_SIZE);
+ sysbus_init_mmio(dev, &s->iomem);
+
+ sysbus_init_irq(dev, &s->irq);
+
+ qemu_chr_add_handlers(s->chr, exynos4210_uart_can_receive,
+ exynos4210_uart_receive, exynos4210_uart_event, s);
+
+ return 0;
+}
+
+static SysBusDeviceInfo exynos4210_uart_info = {
+ .init = exynos4210_uart_init,
+ .qdev.name = "exynos4210.uart",
+ .qdev.size = sizeof(Exynos4210UartState),
+ .qdev.vmsd = &vmstate_exynos4210_uart,
+ .qdev.reset = exynos4210_uart_reset,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_CHR("chardev", Exynos4210UartState, chr),
+ DEFINE_PROP_UINT32("channel", Exynos4210UartState, channel, 0),
+ DEFINE_PROP_UINT32("rx-size", Exynos4210UartState, rx.size, 16),
+ DEFINE_PROP_UINT32("tx-size", Exynos4210UartState, tx.size, 16),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static void exynos4210_uart_register(void)
+{
+ sysbus_register_withprop(&exynos4210_uart_info);
+}
+
+device_init(exynos4210_uart_register)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 02/11] ARM: exynos4210: UART support
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 02/11] ARM: exynos4210: UART support Evgeny Voevodin
@ 2012-01-10 12:11 ` Peter Maydell
2012-01-11 5:28 ` Evgeny Voevodin
0 siblings, 1 reply; 25+ messages in thread
From: Peter Maydell @ 2012-01-10 12:11 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
> From: Maksim Kozlov <m.kozlov@samsung.com>
>
> Add basic support of exynos4210 UART
>
> Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
> ---
> Makefile.target | 2 +-
> hw/exynos4210.c | 24 ++
> hw/exynos4210.h | 9 +
> hw/exynos4210_uart.c | 670 ++++++++++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 704 insertions(+), 1 deletions(-)
> create mode 100644 hw/exynos4210_uart.c
>
> diff --git a/Makefile.target b/Makefile.target
> index fc308bf..0246947 100644
> --- a/Makefile.target
> +++ b/Makefile.target
> @@ -336,7 +336,7 @@ obj-arm-y = integratorcp.o versatilepb.o arm_pic.o arm_timer.o
> obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
> obj-arm-y += versatile_pci.o
> obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
> -obj-arm-y += exynos4_boards.o exynos4210.o
> +obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o
> obj-arm-y += arm_mptimer.o
> obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
> obj-arm-y += pl061.o
> diff --git a/hw/exynos4210.c b/hw/exynos4210.c
> index 62d0ad5..afef4cb 100644
> --- a/hw/exynos4210.c
> +++ b/hw/exynos4210.c
> @@ -26,8 +26,19 @@
> #include "arm-misc.h"
> #include "exynos4210.h"
>
> +
stray blank line
> +
> +#ifdef DEBUG_UART
> +/* The only meaning of life - debugging. This functions should be only used
> + * inside PRINT_DEBUG_... macroses
> + */
"macros"
> + default:
> + level = 0;
> + PRINT_ERROR("Wrong UART chennel number: %d\n", s->channel);
"channel"
> +
> +#ifdef DEBUG_IRQ
> + fprintf(stderr, "UART%d: IRQ have been raised: %08x\n",
> + s->channel, s->reg[I_(UINTP)]);
"has been"
> + case UINTP:
> + s->reg[I_(UINTP)] &= ~val;
> + /* XXX: It's the assumption that it works in this way */
Can you expand this comment a little to clarify exactly what the
assumption you're making is?
-- PMM
^ permalink raw reply [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 02/11] ARM: exynos4210: UART support
2012-01-10 12:11 ` Peter Maydell
@ 2012-01-11 5:28 ` Evgeny Voevodin
0 siblings, 0 replies; 25+ messages in thread
From: Evgeny Voevodin @ 2012-01-11 5:28 UTC (permalink / raw)
To: Peter Maydell
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 01/10/2012 04:11 PM, Peter Maydell wrote:
>> + case UINTP:
>> + s->reg[I_(UINTP)]&= ~val;
>> + /* XXX: It's the assumption that it works in this way */
> Can you expand this comment a little to clarify exactly what the
> assumption you're making is?
It was not clear from documentation if UINTSP register bits should be
cleared inside
this "case" too. Practise has showed that should. I think, this comment
message could be removed.
--
Kind regards,
Evgeny Voevodin,
Leading Software Engineer,
ASWG, Moscow R&D center, Samsung Electronics
e-mail: e.voevodin@samsung.com
^ permalink raw reply [flat|nested] 25+ messages in thread
* [Qemu-devel] [PATCH v5 03/11] hw/sysbus.h: Increase maximum number of device IRQs.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 01/11] ARM: Samsung exynos4210-based boards emulation Evgeny Voevodin
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 02/11] ARM: exynos4210: UART support Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 12:40 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 04/11] ARM: exynos4210: IRQ subsystem support Evgeny Voevodin
` (7 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
Samsung exynos4210 Interrupt Combiner needs 512 IRQ sources.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
hw/sysbus.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/sysbus.h b/hw/sysbus.h
index 2f4025b..6b8f0e2 100644
--- a/hw/sysbus.h
+++ b/hw/sysbus.h
@@ -8,7 +8,7 @@
#define QDEV_MAX_MMIO 32
#define QDEV_MAX_PIO 32
-#define QDEV_MAX_IRQ 256
+#define QDEV_MAX_IRQ 512
typedef struct SysBusDevice SysBusDevice;
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* [Qemu-devel] [PATCH v5 04/11] ARM: exynos4210: IRQ subsystem support.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (2 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 03/11] hw/sysbus.h: Increase maximum number of device IRQs Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 12:35 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 05/11] ARM: exynos4210: PWM support Evgeny Voevodin
` (6 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
Makefile.target | 3 +-
hw/exynos4210.c | 179 ++++++++++++++++++-
hw/exynos4210.h | 46 +++++
hw/exynos4210_combiner.c | 384 ++++++++++++++++++++++++++++++++++++++++
hw/exynos4210_gic.c | 437 ++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 1044 insertions(+), 5 deletions(-)
create mode 100644 hw/exynos4210_combiner.c
create mode 100644 hw/exynos4210_gic.c
diff --git a/Makefile.target b/Makefile.target
index 0246947..ccd1f79 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -336,7 +336,8 @@ obj-arm-y = integratorcp.o versatilepb.o arm_pic.o arm_timer.o
obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
obj-arm-y += versatile_pci.o
obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
-obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o
+obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o exynos4210_gic.o \
+ exynos4210_combiner.o
obj-arm-y += arm_mptimer.o
obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
obj-arm-y += pl061.o
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
index afef4cb..a85eb5d 100644
--- a/hw/exynos4210.c
+++ b/hw/exynos4210.c
@@ -23,6 +23,7 @@
#include "boards.h"
#include "sysemu.h"
+#include "sysbus.h"
#include "arm-misc.h"
#include "exynos4210.h"
@@ -38,10 +39,101 @@
#define EXYNOS4210_UART1_FIFO_SIZE 64
#define EXYNOS4210_UART2_FIFO_SIZE 16
#define EXYNOS4210_UART3_FIFO_SIZE 16
+/* Interrupt Group of External Interrupt Combiner for UART */
+#define EXYNOS4210_UART_INT_GRP 26
+
+/* External GIC */
+#define EXYNOS4210_EXT_GIC_CPU_BASE_ADDR 0x10480000
+#define EXYNOS4210_EXT_GIC_DIST_BASE_ADDR 0x10490000
+
+/* Combiner */
+#define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000
+#define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000
static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43,
0x09, 0x00, 0x00, 0x00 };
+static void exynos4210_combiner_get_gpioin(Exynos4210Irq *irqs,
+ DeviceState *dev,
+ int ext)
+{
+ int n;
+ int bit;
+ int max;
+ qemu_irq *irq;
+
+ max = ext ? EXYNOS4210_MAX_EXT_COMBINER_IN_IRQ :
+ EXYNOS4210_MAX_INT_COMBINER_IN_IRQ;
+ irq = ext ? irqs->ext_combiner_irq : irqs->int_combiner_irq;
+
+ /*
+ * Some IRQs of Int/External Combiner are going to two Combiners groups,
+ * so let split them.
+ */
+ for (n = 0; n < max; n++) {
+
+ bit = EXYNOS4210_COMBINER_GET_BIT_NUM(n);
+
+ switch (n) {
+ /* MDNIE_LCD1 INTG1*/
+ case EXYNOS4210_COMBINER_GET_IRQ_NUM(1, 0) ...
+ EXYNOS4210_COMBINER_GET_IRQ_NUM(1, 3):
+ irq[n] = qemu_irq_split(qdev_get_gpio_in(dev, n),
+ irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(0, bit + 4)]);
+ continue;
+ break;
+
+ /* TMU INTG3*/
+ case EXYNOS4210_COMBINER_GET_IRQ_NUM(3, 4):
+ irq[n] =
+ qemu_irq_split(qdev_get_gpio_in(dev, n),
+ irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(2, bit)]);
+ continue;
+ break;
+
+ /* LCD1 INTG12*/
+ case EXYNOS4210_COMBINER_GET_IRQ_NUM(12, 0) ...
+ EXYNOS4210_COMBINER_GET_IRQ_NUM(12, 3):
+ irq[n] = qemu_irq_split(qdev_get_gpio_in(dev, n),
+ irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(11, bit + 4)]);
+ continue;
+
+ /* Multi-Core Timer INTG12*/
+ case EXYNOS4210_COMBINER_GET_IRQ_NUM(12, 4) ...
+ EXYNOS4210_COMBINER_GET_IRQ_NUM(12, 8):
+ irq[n] = qemu_irq_split(qdev_get_gpio_in(dev, n),
+ irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(1, bit + 4)]);
+ continue;
+ break;
+
+ /* Multi-Core Timer INTG35*/
+ case EXYNOS4210_COMBINER_GET_IRQ_NUM(35, 4) ...
+ EXYNOS4210_COMBINER_GET_IRQ_NUM(35, 8):
+ irq[n] = qemu_irq_split(qdev_get_gpio_in(dev, n),
+ irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(1, bit + 4)]);
+ continue;
+ break;
+
+ /* Multi-Core Timer INTG51*/
+ case EXYNOS4210_COMBINER_GET_IRQ_NUM(51, 4) ...
+ EXYNOS4210_COMBINER_GET_IRQ_NUM(51, 8):
+ irq[n] = qemu_irq_split(qdev_get_gpio_in(dev, n),
+ irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(1, bit + 4)]);
+ continue;
+ break;
+
+ /* Multi-Core Timer INTG53*/
+ case EXYNOS4210_COMBINER_GET_IRQ_NUM(53, 4) ...
+ EXYNOS4210_COMBINER_GET_IRQ_NUM(53, 8):
+ irq[n] = qemu_irq_split(qdev_get_gpio_in(dev, n),
+ irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(1, bit + 4)]);
+ continue;
+ break;
+ }
+
+ irq[n] = qdev_get_gpio_in(dev, n);
+ }
+}
Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
unsigned long ram_size)
@@ -49,8 +141,12 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
qemu_irq cpu_irq[4];
int n;
Exynos4210State *s = g_new(Exynos4210State, 1);
+ qemu_irq *irq_table;
qemu_irq *irqp;
+ qemu_irq gate_irq[EXYNOS4210_IRQ_GATE_NINPUTS];
unsigned long mem_size;
+ DeviceState *dev;
+ SysBusDevice *busdev;
for (n = 0; n < smp_cpus; n++) {
s->env[n] = cpu_init("cortex-a9");
@@ -68,6 +164,77 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
}
+ /*** IRQs ***/
+
+ s->irq_table = exynos4210_init_irq(&s->irqs);
+ irq_table = s->irq_table;
+
+ /* IRQ Gate */
+ dev = qdev_create(NULL, "exynos4210.irq_gate");
+ qdev_init_nofail(dev);
+ /* Get IRQ Gate input in gate_irq */
+ for (n = 0; n < EXYNOS4210_IRQ_GATE_NINPUTS; n++) {
+ gate_irq[n] = qdev_get_gpio_in(dev, n);
+ }
+ busdev = sysbus_from_qdev(dev);
+ /* Connect IRQ Gate output to cpu_irq */
+ for (n = 0; n < smp_cpus; n++) {
+ sysbus_connect_irq(busdev, n, cpu_irq[n]);
+ }
+
+ /* Private memory region and Internal GIC */
+ dev = qdev_create(NULL, "a9mpcore_priv");
+ qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
+ qdev_init_nofail(dev);
+ busdev = sysbus_from_qdev(dev);
+ sysbus_mmio_map(busdev, 0, EXYNOS4210_SMP_PRIVATE_BASE_ADDR);
+ for (n = 0; n < smp_cpus; n++) {
+ sysbus_connect_irq(busdev, n, gate_irq[n * 2]);
+ }
+ for (n = 0; n < EXYNOS4210_INT_GIC_NIRQ; n++) {
+ s->irqs.int_gic_irq[n] = qdev_get_gpio_in(dev, n);
+ }
+
+ /* External GIC */
+ dev = qdev_create(NULL, "exynos4210.gic");
+ qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
+ qdev_init_nofail(dev);
+ busdev = sysbus_from_qdev(dev);
+ /* Map CPU interface */
+ sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_GIC_CPU_BASE_ADDR);
+ /* Map Distributer interface */
+ sysbus_mmio_map(busdev, 1, EXYNOS4210_EXT_GIC_DIST_BASE_ADDR);
+ for (n = 0; n < smp_cpus; n++) {
+ sysbus_connect_irq(busdev, n, gate_irq[n * 2 + 1]);
+ }
+ for (n = 0; n < EXYNOS4210_EXT_GIC_NIRQ; n++) {
+ s->irqs.ext_gic_irq[n] = qdev_get_gpio_in(dev, n);
+ }
+
+ /* Internal Interrupt Combiner */
+ dev = qdev_create(NULL, "exynos4210.combiner");
+ qdev_init_nofail(dev);
+ busdev = sysbus_from_qdev(dev);
+ for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) {
+ sysbus_connect_irq(busdev, n, s->irqs.int_gic_irq[n]);
+ }
+ exynos4210_combiner_get_gpioin(&s->irqs, dev, 0);
+ sysbus_mmio_map(busdev, 0, EXYNOS4210_INT_COMBINER_BASE_ADDR);
+
+ /* External Interrupt Combiner */
+ dev = qdev_create(NULL, "exynos4210.combiner");
+ qdev_init_nofail(dev);
+ busdev = sysbus_from_qdev(dev);
+ for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) {
+ sysbus_connect_irq(busdev, n, s->irqs.ext_gic_irq[n]);
+ }
+ exynos4210_combiner_get_gpioin(&s->irqs, dev, 1);
+ sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_COMBINER_BASE_ADDR);
+ qdev_prop_set_uint32(dev, "external", 1);
+
+ /* Initialize board IRQs. */
+ exynos4210_init_board_irqs(&s->irqs);
+
/*** Memory ***/
/* Chip-ID and OMR */
@@ -112,16 +279,20 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
/*** UARTs ***/
exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR,
- EXYNOS4210_UART0_FIFO_SIZE, 0, NULL, NULL);
+ EXYNOS4210_UART0_FIFO_SIZE, 0, NULL,
+ irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 0)]);
exynos4210_uart_create(EXYNOS4210_UART1_BASE_ADDR,
- EXYNOS4210_UART1_FIFO_SIZE, 1, NULL, NULL);
+ EXYNOS4210_UART1_FIFO_SIZE, 1, NULL,
+ irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 1)]);
exynos4210_uart_create(EXYNOS4210_UART2_BASE_ADDR,
- EXYNOS4210_UART2_FIFO_SIZE, 2, NULL, NULL);
+ EXYNOS4210_UART2_FIFO_SIZE, 2, NULL,
+ irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 2)]);
exynos4210_uart_create(EXYNOS4210_UART3_BASE_ADDR,
- EXYNOS4210_UART3_FIFO_SIZE, 3, NULL, NULL);
+ EXYNOS4210_UART3_FIFO_SIZE, 3, NULL,
+ irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 3)]);
return s;
}
diff --git a/hw/exynos4210.h b/hw/exynos4210.h
index 4dc119a..b55d159 100644
--- a/hw/exynos4210.h
+++ b/hw/exynos4210.h
@@ -45,8 +45,41 @@
#define EXYNOS4210_BASE_BOOT_ADDR EXYNOS4210_DRAM0_BASE_ADDR
+#define EXYNOS4210_SMP_PRIVATE_BASE_ADDR 0x10500000
+
+/*
+ * exynos4210 IRQ subsystem stub definitions.
+ */
+#define EXYNOS4210_IRQ_GATE_NINPUTS 8
+
+#define EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ 64
+#define EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ 16
+#define EXYNOS4210_MAX_INT_COMBINER_IN_IRQ \
+ (EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ * 8)
+#define EXYNOS4210_MAX_EXT_COMBINER_IN_IRQ \
+ (EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ * 8)
+
+#define EXYNOS4210_COMBINER_GET_IRQ_NUM(grp, bit) ((grp)*8 + (bit))
+#define EXYNOS4210_COMBINER_GET_GRP_NUM(irq) ((irq) / 8)
+#define EXYNOS4210_COMBINER_GET_BIT_NUM(irq) \
+ ((irq) - 8 * EXYNOS4210_COMBINER_GET_GRP_NUM(irq))
+
+/* IRQs number for external and internal GIC */
+#define EXYNOS4210_EXT_GIC_NIRQ (160-32)
+#define EXYNOS4210_INT_GIC_NIRQ 64
+
+typedef struct Exynos4210Irq {
+ qemu_irq int_combiner_irq[EXYNOS4210_MAX_INT_COMBINER_IN_IRQ];
+ qemu_irq ext_combiner_irq[EXYNOS4210_MAX_EXT_COMBINER_IN_IRQ];
+ qemu_irq int_gic_irq[EXYNOS4210_INT_GIC_NIRQ];
+ qemu_irq ext_gic_irq[EXYNOS4210_EXT_GIC_NIRQ];
+ qemu_irq board_irqs[EXYNOS4210_MAX_INT_COMBINER_IN_IRQ];
+} Exynos4210Irq;
+
typedef struct Exynos4210State {
CPUState * env[EXYNOS4210_MAX_CPUS];
+ Exynos4210Irq irqs;
+ qemu_irq *irq_table;
MemoryRegion chipid_mem;
MemoryRegion iram_mem;
@@ -60,6 +93,19 @@ typedef struct Exynos4210State {
Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
unsigned long ram_size);
+/* Initialize exynos4210 IRQ subsystem stub */
+qemu_irq *exynos4210_init_irq(Exynos4210Irq *env);
+
+/* Initialize board IRQs.
+ * These IRQs contain splitted Int/External Combiner and External Gic IRQs */
+void exynos4210_init_board_irqs(Exynos4210Irq *s);
+
+/* Get IRQ number from exynos4210 IRQ subsystem stub.
+ * To identify IRQ source use internal combiner group and bit number
+ * grp - group number
+ * bit - bit number inside group */
+uint32_t exynos4210_get_irq(uint32_t grp, uint32_t bit);
+
/*
* exynos4210 UART
*/
diff --git a/hw/exynos4210_combiner.c b/hw/exynos4210_combiner.c
new file mode 100644
index 0000000..4820f40
--- /dev/null
+++ b/hw/exynos4210_combiner.c
@@ -0,0 +1,384 @@
+/*
+ * Samsung exynos4210 Interrupt Combiner
+ *
+ * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
+ * All rights reserved.
+ *
+ * Evgeny Voevodin <e.voevodin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "sysbus.h"
+
+#include "exynos4210.h"
+
+//#define DEBUG_COMBINER
+
+#ifdef DEBUG_COMBINER
+#define DPRINTF(fmt, ...) \
+ do { fprintf(stdout, "COMBINER: [%s:%d] " fmt, __func__ , __LINE__, \
+ ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) do {} while (0)
+#endif
+
+#define IIC_NGRP 64 /* Internal Interrupt Combiner
+ Groups number */
+#define IIC_NIRQ (IIC_NGRP*8) /* Internal Interrupt Combiner
+ Interrupts number */
+#define IIC_REGION_SIZE 0x108 /* Size of memory mapped region */
+#define IIC_REGSET_SIZE 0x41
+
+/*
+ * Combiner registers
+ */
+struct CombinerReg {
+ uint32_t iiesr; /* Internal Interrupt Enable Set register */
+ uint32_t iiecr; /* Internal Interrupt Enable Clear register */
+ uint32_t iistr; /* Internal Interrupt Status register.
+ * Shows status of interrupt pending BEFORE masking
+ */
+ uint32_t iimsr; /* Internal Interrupt Mask Status register.
+ * Shows status of interrupt pending AFTER masking
+ */
+};
+
+/*
+ * State for each output signal of internal combiner
+ */
+typedef struct CombinerGroupState {
+ uint8_t src_mask; /* 1 - source enabled, 0 - disabled */
+ uint8_t src_pending; /* Pending source interrupts before masking */
+} CombinerGroupState;
+
+typedef struct Exynos4210CombinerState {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+
+ struct CombinerGroupState group[IIC_NGRP];
+ uint32_t reg_set[IIC_REGSET_SIZE];
+ uint32_t icipsr[2];
+ uint32_t external; /* 1 means that this combiner is external */
+
+ qemu_irq output_irq[IIC_NGRP];
+} Exynos4210CombinerState;
+
+static const VMStateDescription VMState_Exynos4210CombinerGroupState = {
+ .name = "exynos4210.combiner.groupstate",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT8(src_mask, CombinerGroupState),
+ VMSTATE_UINT8(src_pending, CombinerGroupState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription VMState_Exynos4210Combiner = {
+ .name = "exynos4210.combiner",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT_ARRAY(group, Exynos4210CombinerState, IIC_NGRP, 0,
+ VMState_Exynos4210CombinerGroupState, CombinerGroupState),
+ VMSTATE_UINT32_ARRAY(reg_set, Exynos4210CombinerState,
+ IIC_REGSET_SIZE),
+ VMSTATE_UINT32_ARRAY(icipsr, Exynos4210CombinerState, 2),
+ VMSTATE_UINT32(external, Exynos4210CombinerState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static uint64_t
+exynos4210_combiner_read(void *opaque, target_phys_addr_t offset, unsigned size)
+{
+ struct Exynos4210CombinerState *s =
+ (struct Exynos4210CombinerState *)opaque;
+ uint32_t req_quad_base_n; /* Base of registers quad. Multiply it by 4 and
+ get a start of corresponding group quad */
+ uint32_t grp_quad_base_n; /* Base of group quad */
+ uint32_t reg_n; /* Register number inside the quad */
+ uint32_t val;
+
+ if (s->external && (offset > 0x3c && offset != 0x100)) {
+ hw_error("exynos4210.combiner: unallowed read access at offset 0x"
+ TARGET_FMT_plx "\n", offset);
+ }
+
+ req_quad_base_n = offset >> 4;
+ grp_quad_base_n = req_quad_base_n << 2;
+ reg_n = (offset - (req_quad_base_n << 4)) >> 2;
+
+ if (req_quad_base_n >= IIC_NGRP) {
+ /* Read of ICIPSR register */
+ return s->icipsr[reg_n];
+ }
+
+ val = 0;
+
+ switch (reg_n) {
+ /* IISTR */
+ case 2:
+ val |= s->group[grp_quad_base_n].src_pending;
+ val |= s->group[grp_quad_base_n+1].src_pending << 8;
+ val |= s->group[grp_quad_base_n+2].src_pending << 16;
+ val |= s->group[grp_quad_base_n+3].src_pending << 24;
+ break;
+ /* IIMSR */
+ case 3:
+ val |= s->group[grp_quad_base_n].src_mask &
+ s->group[grp_quad_base_n].src_pending;
+ val |= (s->group[grp_quad_base_n+1].src_mask &
+ s->group[grp_quad_base_n+1].src_pending) << 8;
+ val |= (s->group[grp_quad_base_n+2].src_mask &
+ s->group[grp_quad_base_n+2].src_pending) << 16;
+ val |= (s->group[grp_quad_base_n+3].src_mask &
+ s->group[grp_quad_base_n+3].src_pending) << 24;
+ break;
+ default:
+ if (offset >> 2 >= IIC_REGSET_SIZE) {
+ hw_error("exynos4210.combiner: overflow of reg_set by 0x"
+ TARGET_FMT_plx "offset\n", offset);
+ }
+ val = s->reg_set[offset >> 2];
+ return 0;
+ }
+ return val;
+}
+
+static void exynos4210_combiner_update(void *opaque, uint8_t group_n)
+{
+ struct Exynos4210CombinerState *s =
+ (struct Exynos4210CombinerState *)opaque;
+
+ /* Send interrupt if needed */
+ if (s->group[group_n].src_mask & s->group[group_n].src_pending) {
+#ifdef DEBUG_COMBINER
+ if (group_n != 26) {
+ /* skip uart */
+ DPRINTF("%s raise IRQ[%d]\n", s->external ? "EXT" : "INT", group_n);
+ }
+#endif
+
+ /* Set Combiner interrupt pending status after masking */
+ if (group_n >= 32) {
+ s->icipsr[1] |= 1 << (group_n-32);
+ } else {
+ s->icipsr[0] |= 1 << group_n;
+ }
+
+ qemu_irq_raise(s->output_irq[group_n]);
+ } else {
+#ifdef DEBUG_COMBINER
+ if (group_n != 26) {
+ /* skip uart */
+ DPRINTF("%s lower IRQ[%d]\n", s->external ? "EXT" : "INT", group_n);
+ }
+#endif
+
+ /* Set Combiner interrupt pending status after masking */
+ if (group_n >= 32) {
+ s->icipsr[1] &= ~(1 << (group_n-32));
+ } else {
+ s->icipsr[0] &= ~(1 << group_n);
+ }
+
+ qemu_irq_lower(s->output_irq[group_n]);
+ }
+}
+
+static void exynos4210_combiner_write(void *opaque, target_phys_addr_t offset,
+ uint64_t val, unsigned size)
+{
+ struct Exynos4210CombinerState *s =
+ (struct Exynos4210CombinerState *)opaque;
+ uint32_t req_quad_base_n; /* Base of registers quad. Multiply it by 4 and
+ get a start of corresponding group quad */
+ uint32_t grp_quad_base_n; /* Base of group quad */
+ uint32_t reg_n; /* Register number inside the quad */
+
+ if (s->external && (offset > 0x3c && offset != 0x100)) {
+ hw_error("exynos4210.combiner: unallowed write access at offset 0x"
+ TARGET_FMT_plx "\n", offset);
+ }
+
+ req_quad_base_n = offset >> 4;
+ grp_quad_base_n = req_quad_base_n << 2;
+ reg_n = (offset - (req_quad_base_n << 4)) >> 2;
+
+ if (req_quad_base_n >= IIC_NGRP) {
+ hw_error("exynos4210.combiner: unallowed write access at offset 0x"
+ TARGET_FMT_plx "\n", offset);
+ return;
+ }
+
+ if (reg_n > 1) {
+ hw_error("exynos4210.combiner: unallowed write access at offset 0x"
+ TARGET_FMT_plx "\n", offset);
+ return;
+ }
+
+ if (offset >> 2 >= IIC_REGSET_SIZE) {
+ hw_error("exynos4210.combiner: overflow of reg_set by 0x"
+ TARGET_FMT_plx "offset\n", offset);
+ }
+ s->reg_set[offset >> 2] = val;
+
+ switch (reg_n) {
+ /* IIESR */
+ case 0:
+ /* FIXME: what if irq is pending, allowed by mask, and we allow it
+ * again. Interrupt will rise again! */
+
+ DPRINTF("%s enable IRQ for groups %d, %d, %d, %d\n",
+ s->external ? "EXT" : "INT", grp_quad_base_n, grp_quad_base_n+1,
+ grp_quad_base_n+2, grp_quad_base_n+3);
+ /* Enable interrupt sources */
+ s->group[grp_quad_base_n].src_mask |= val&0xFF;
+ s->group[grp_quad_base_n+1].src_mask |= (val&0xFF00)>>8;
+ s->group[grp_quad_base_n+2].src_mask |= (val&0xFF0000)>>16;
+ s->group[grp_quad_base_n+3].src_mask |= (val&0xFF000000)>>24;
+
+ exynos4210_combiner_update(s, grp_quad_base_n);
+ exynos4210_combiner_update(s, grp_quad_base_n+1);
+ exynos4210_combiner_update(s, grp_quad_base_n+2);
+ exynos4210_combiner_update(s, grp_quad_base_n+3);
+ break;
+ /* IIECR */
+ case 1:
+ DPRINTF("%s disable IRQ for groups %d, %d, %d, %d\n",
+ s->external ? "EXT" : "INT", grp_quad_base_n, grp_quad_base_n+1,
+ grp_quad_base_n+2, grp_quad_base_n+3);
+ /* Disable interrupt sources */
+ s->group[grp_quad_base_n].src_mask &= ~(val&0xFF);
+ s->group[grp_quad_base_n+1].src_mask &= ~((val&0xFF00)>>8);
+ s->group[grp_quad_base_n+2].src_mask &= ~((val&0xFF0000)>>16);
+ s->group[grp_quad_base_n+3].src_mask &= ~((val&0xFF000000)>>24);
+
+ exynos4210_combiner_update(s, grp_quad_base_n);
+ exynos4210_combiner_update(s, grp_quad_base_n+1);
+ exynos4210_combiner_update(s, grp_quad_base_n+2);
+ exynos4210_combiner_update(s, grp_quad_base_n+3);
+ break;
+ default:
+ hw_error("exynos4210.combiner: unallowed write access at offset 0x"
+ TARGET_FMT_plx "\n", offset);
+ break;
+ }
+
+ return;
+}
+
+/* Get combiner group and bit from irq number */
+static uint8_t get_combiner_group_and_bit(int irq, uint8_t *bit)
+{
+ *bit = irq - ((irq >> 3)<<3);
+ return irq >> 3;
+}
+
+/* Process a change in an external IRQ input. */
+static void exynos4210_combiner_handler(void *opaque, int irq, int level)
+{
+ struct Exynos4210CombinerState *s =
+ (struct Exynos4210CombinerState *)opaque;
+ uint8_t bit_n, group_n;
+
+ group_n = get_combiner_group_and_bit(irq, &bit_n);
+
+ if (s->external && group_n >= EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ) {
+ DPRINTF("%s unallowed IRQ group 0x%x\n", s->external ? "EXT" : "INT"
+ , group_n);
+ return;
+ }
+
+ if (level) {
+ s->group[group_n].src_pending |= 1 << bit_n;
+ } else {
+ s->group[group_n].src_pending &= ~(1 << bit_n);
+ }
+
+ exynos4210_combiner_update(s, group_n);
+
+ return;
+}
+
+static void exynos4210_combiner_reset(DeviceState *d)
+{
+ struct Exynos4210CombinerState *s = (struct Exynos4210CombinerState *)d;
+
+ memset(&s->group, 0, sizeof(s->group));
+ memset(&s->reg_set, 0, sizeof(s->reg_set));
+
+ s->reg_set[0xC0 >> 2] = 0x01010101;
+ s->reg_set[0xC4 >> 2] = 0x01010101;
+ s->reg_set[0xD0 >> 2] = 0x01010101;
+ s->reg_set[0xD4 >> 2] = 0x01010101;
+}
+
+static const MemoryRegionOps exynos4210_combiner_ops = {
+ .read = exynos4210_combiner_read,
+ .write = exynos4210_combiner_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+/*
+ * Internal Combiner initialization.
+ */
+static int exynos4210_combiner_init(SysBusDevice *dev)
+{
+ unsigned int i;
+ struct Exynos4210CombinerState *s =
+ FROM_SYSBUS(struct Exynos4210CombinerState, dev);
+
+ /* Allocate general purpose input signals and connect a handler to each of
+ * them */
+ qdev_init_gpio_in(&s->busdev.qdev, exynos4210_combiner_handler, IIC_NIRQ);
+
+ /* Connect SysBusDev irqs to device specific irqs */
+ for (i = 0; i < IIC_NIRQ; i++) {
+ sysbus_init_irq(dev, &s->output_irq[i]);
+ }
+
+ memory_region_init_io(&s->iomem, &exynos4210_combiner_ops, s,
+ "exynos4210-combiner", IIC_REGION_SIZE);
+ sysbus_init_mmio(dev, &s->iomem);
+
+ exynos4210_combiner_reset((DeviceState *)s);
+ return 0;
+}
+
+static SysBusDeviceInfo exynos4210_combiner_info = {
+ .qdev.name = "exynos4210.combiner",
+ .qdev.size = sizeof(struct Exynos4210CombinerState),
+ .qdev.reset = exynos4210_combiner_reset,
+ .qdev.vmsd = &VMState_Exynos4210Combiner,
+ .init = exynos4210_combiner_init,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_UINT32("external",
+ struct Exynos4210CombinerState,
+ external,
+ 0),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static void exynos4210_combiner_register_devices(void)
+{
+ sysbus_register_withprop(&exynos4210_combiner_info);
+}
+
+device_init(exynos4210_combiner_register_devices)
diff --git a/hw/exynos4210_gic.c b/hw/exynos4210_gic.c
new file mode 100644
index 0000000..9358c5a
--- /dev/null
+++ b/hw/exynos4210_gic.c
@@ -0,0 +1,437 @@
+/*
+ * Samsung exynos4210 GIC implementation. Based on hw/arm_gic.c
+ *
+ * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
+ * All rights reserved.
+ *
+ * Evgeny Voevodin <e.voevodin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "sysbus.h"
+#include "qemu-common.h"
+#include "irq.h"
+#include "exynos4210.h"
+
+#define EXT_GIC_ID_TVENC 127
+#define EXT_GIC_ID_MFC 126
+#define EXT_GIC_ID_HDMI_I2C 125
+#define EXT_GIC_ID_HDMI 124
+#define EXT_GIC_ID_MIXER 123
+#define EXT_GIC_ID_PCIe 122
+#define EXT_GIC_ID_2D 121
+#define EXT_GIC_ID_JPEG 120
+#define EXT_GIC_ID_FIMC3 119
+#define EXT_GIC_ID_FIMC2 118
+#define EXT_GIC_ID_FIMC1 117
+#define EXT_GIC_ID_FIMC0 116
+#define EXT_GIC_ID_ROTATOR 115
+#define EXT_GIC_ID_ONENAND_AUDI 114
+#define EXT_GIC_ID_MIPI_DSI_2LANE 113
+#define EXT_GIC_ID_MIPI_CSI_2LANE 112
+#define EXT_GIC_ID_MIPI_DSI_4LANE 111
+#define EXT_GIC_ID_MIPI_CSI_4LANE 110
+#define EXT_GIC_ID_SDMMC 109
+#define EXT_GIC_ID_HSMMC3 108
+#define EXT_GIC_ID_HSMMC2 107
+#define EXT_GIC_ID_HSMMC1 106
+#define EXT_GIC_ID_HSMMC0 105
+#define EXT_GIC_ID_MODEMIF 104
+#define EXT_GIC_ID_USB_DEVICE 103
+#define EXT_GIC_ID_USB_HOST 102
+#define EXT_GIC_ID_MCT_G1 101
+#define EXT_GIC_ID_SPI2 100
+#define EXT_GIC_ID_SPI1 99
+#define EXT_GIC_ID_SPI0 98
+#define EXT_GIC_ID_I2C7 97
+#define EXT_GIC_ID_I2C6 96
+#define EXT_GIC_ID_I2C5 95
+#define EXT_GIC_ID_I2C4 94
+#define EXT_GIC_ID_I2C3 93
+#define EXT_GIC_ID_I2C2 92
+#define EXT_GIC_ID_I2C1 91
+#define EXT_GIC_ID_I2C0 90
+#define EXT_GIC_ID_MCT_G0 89
+#define EXT_GIC_ID_UART4 88
+#define EXT_GIC_ID_UART3 87
+#define EXT_GIC_ID_UART2 86
+#define EXT_GIC_ID_UART1 85
+#define EXT_GIC_ID_UART0 84
+#define EXT_GIC_ID_NFC 83
+#define EXT_GIC_ID_IEM_IEC 82
+#define EXT_GIC_ID_IEM_APC 81
+#define EXT_GIC_ID_MCT_L1 80
+#define EXT_GIC_ID_GPIO_XA 79
+#define EXT_GIC_ID_GPIO_XB 78
+#define EXT_GIC_ID_RTC_TIC 77
+#define EXT_GIC_ID_RTC_ALARM 76
+#define EXT_GIC_ID_WDT 75
+#define EXT_GIC_ID_MCT_L0 74
+#define EXT_GIC_ID_TIMER4 73
+#define EXT_GIC_ID_TIMER3 72
+#define EXT_GIC_ID_TIMER2 71
+#define EXT_GIC_ID_TIMER1 70
+#define EXT_GIC_ID_TIMER0 69
+#define EXT_GIC_ID_PDMA1 68
+#define EXT_GIC_ID_PDMA0 67
+#define EXT_GIC_ID_MDMA_LCD0 66
+
+enum ext_int {
+ EXT_GIC_ID_EXTINT0 = 48,
+ EXT_GIC_ID_EXTINT1,
+ EXT_GIC_ID_EXTINT2,
+ EXT_GIC_ID_EXTINT3,
+ EXT_GIC_ID_EXTINT4,
+ EXT_GIC_ID_EXTINT5,
+ EXT_GIC_ID_EXTINT6,
+ EXT_GIC_ID_EXTINT7,
+ EXT_GIC_ID_EXTINT8,
+ EXT_GIC_ID_EXTINT9,
+ EXT_GIC_ID_EXTINT10,
+ EXT_GIC_ID_EXTINT11,
+ EXT_GIC_ID_EXTINT12,
+ EXT_GIC_ID_EXTINT13,
+ EXT_GIC_ID_EXTINT14,
+ EXT_GIC_ID_EXTINT15
+};
+
+/*
+ * External GIC sources which are not from External Interrupt Combiner or
+ * External Interrupts are starting from EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ,
+ * which is INTG16 in Internal Interrupt Combiner.
+ */
+
+static uint32_t
+combiner_grp_to_gic_id[64-EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ][8] = {
+ /* int combiner groups 16-19 */
+ {}, {}, {}, {},
+ /* int combiner group 20 */
+ {0, EXT_GIC_ID_MDMA_LCD0},
+ /* int combiner group 21 */
+ {EXT_GIC_ID_PDMA0, EXT_GIC_ID_PDMA1},
+ /* int combiner group 22 */
+ {EXT_GIC_ID_TIMER0, EXT_GIC_ID_TIMER1, EXT_GIC_ID_TIMER2,
+ EXT_GIC_ID_TIMER3, EXT_GIC_ID_TIMER4},
+ /* int combiner group 23 */
+ {EXT_GIC_ID_RTC_ALARM, EXT_GIC_ID_RTC_TIC},
+ /* int combiner group 24 */
+ {EXT_GIC_ID_GPIO_XB, EXT_GIC_ID_GPIO_XA},
+ /* int combiner group 25 */
+ {EXT_GIC_ID_IEM_APC, EXT_GIC_ID_IEM_IEC},
+ /* int combiner group 26 */
+ {EXT_GIC_ID_UART0, EXT_GIC_ID_UART1, EXT_GIC_ID_UART2, EXT_GIC_ID_UART3,
+ EXT_GIC_ID_UART4},
+ /* int combiner group 27 */
+ {EXT_GIC_ID_I2C0, EXT_GIC_ID_I2C1, EXT_GIC_ID_I2C2, EXT_GIC_ID_I2C3,
+ EXT_GIC_ID_I2C4, EXT_GIC_ID_I2C5, EXT_GIC_ID_I2C6,
+ EXT_GIC_ID_I2C7},
+ /* int combiner group 28 */
+ {EXT_GIC_ID_SPI0, EXT_GIC_ID_SPI1, EXT_GIC_ID_SPI2},
+ /* int combiner group 29 */
+ {EXT_GIC_ID_HSMMC0, EXT_GIC_ID_HSMMC1, EXT_GIC_ID_HSMMC2,
+ EXT_GIC_ID_HSMMC3, EXT_GIC_ID_SDMMC},
+ /* int combiner group 30 */
+ {EXT_GIC_ID_MIPI_CSI_4LANE, EXT_GIC_ID_MIPI_CSI_2LANE},
+ /* int combiner group 31 */
+ {EXT_GIC_ID_MIPI_DSI_4LANE, EXT_GIC_ID_MIPI_DSI_2LANE},
+ /* int combiner group 32 */
+ {EXT_GIC_ID_FIMC0, EXT_GIC_ID_FIMC1},
+ /* int combiner group 33 */
+ {EXT_GIC_ID_FIMC2, EXT_GIC_ID_FIMC3},
+ /* int combiner group 34 */
+ {EXT_GIC_ID_ONENAND_AUDI, EXT_GIC_ID_NFC},
+ /* int combiner group 35 */
+ {0, 0, 0, EXT_GIC_ID_MCT_L1, EXT_GIC_ID_MCT_G0, EXT_GIC_ID_MCT_G1},
+ /* int combiner group 36 */
+ {EXT_GIC_ID_MIXER},
+ /* int combiner group 37 */
+ {EXT_GIC_ID_EXTINT4, EXT_GIC_ID_EXTINT5, EXT_GIC_ID_EXTINT6,
+ EXT_GIC_ID_EXTINT7},
+ /* groups 38-50 */
+ {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {}, {},
+ /* int combiner group 51 */
+ {EXT_GIC_ID_MCT_L0, 0, 0, 0, EXT_GIC_ID_MCT_G0, EXT_GIC_ID_MCT_G1},
+ /* group 52 */
+ {},
+ /* int combiner group 53 */
+ {EXT_GIC_ID_WDT, 0, 0, 0, EXT_GIC_ID_MCT_G0, EXT_GIC_ID_MCT_G1},
+ /* groups 54-63 */
+ {}, {}, {}, {}, {}, {}, {}, {}, {}, {}
+};
+
+#define GIC_NIRQ 160
+#define NCPU EXYNOS4210_MAX_CPUS
+
+#define EXYNOS4210_EXT_GIC_CPU_REGION_SIZE 0x10000
+#define EXYNOS4210_EXT_GIC_DIST_REGION_SIZE 0x10000
+
+#define EXYNOS4210_EXT_GIC_PER_CPU_OFFSET 0x8000
+#define EXYNOS4210_EXT_GIC_CPU_GET_OFFSET(n) \
+ (n * EXYNOS4210_EXT_GIC_PER_CPU_OFFSET)
+#define EXYNOS4210_EXT_GIC_DIST_GET_OFFSET(n) \
+ (n * EXYNOS4210_EXT_GIC_PER_CPU_OFFSET)
+
+#define EXYNOS4210_GIC_CPU_REGION_SIZE 0x100
+#define EXYNOS4210_GIC_DIST_REGION_SIZE 0x1000
+
+static void exynos4210_irq_handler(void *opaque, int irq, int level)
+{
+ Exynos4210Irq *s = (Exynos4210Irq *)opaque;
+
+ /* Bypass */
+ qemu_set_irq(s->board_irqs[irq], level);
+
+ return;
+}
+
+/*
+ * Initialize exynos4210 IRQ subsystem stub.
+ */
+qemu_irq *exynos4210_init_irq(Exynos4210Irq *s)
+{
+ return qemu_allocate_irqs(exynos4210_irq_handler, s,
+ EXYNOS4210_MAX_INT_COMBINER_IN_IRQ);
+}
+
+/*
+ * Initialize board IRQs.
+ * These IRQs contain splitted Int/External Combiner and External Gic IRQs.
+ */
+void exynos4210_init_board_irqs(Exynos4210Irq *s)
+{
+ uint32_t grp, bit, irq_id, n;
+
+ for (n = 0; n < EXYNOS4210_MAX_EXT_COMBINER_IN_IRQ; n++) {
+ s->board_irqs[n] = qemu_irq_split(s->int_combiner_irq[n],
+ s->ext_combiner_irq[n]);
+
+ irq_id = 0;
+ if (n == EXYNOS4210_COMBINER_GET_IRQ_NUM(1, 4) ||
+ n == EXYNOS4210_COMBINER_GET_IRQ_NUM(12, 4)) {
+ /* MCT_G0 is passed to External GIC */
+ irq_id = EXT_GIC_ID_MCT_G0;
+ }
+ if (n == EXYNOS4210_COMBINER_GET_IRQ_NUM(1, 5) ||
+ n == EXYNOS4210_COMBINER_GET_IRQ_NUM(12, 5)) {
+ /* MCT_G1 is passed to External and GIC */
+ irq_id = EXT_GIC_ID_MCT_G1;
+ }
+ if (irq_id) {
+ s->board_irqs[n] = qemu_irq_split(s->int_combiner_irq[n],
+ s->ext_gic_irq[irq_id-32]);
+ }
+
+ }
+ for (; n < EXYNOS4210_MAX_INT_COMBINER_IN_IRQ; n++) {
+ /* these IDs are passed to Internal Combiner and External GIC */
+ grp = EXYNOS4210_COMBINER_GET_GRP_NUM(n);
+ bit = EXYNOS4210_COMBINER_GET_BIT_NUM(n);
+ irq_id =
+ combiner_grp_to_gic_id[grp -
+ EXYNOS4210_MAX_EXT_COMBINER_OUT_IRQ][bit];
+
+ if (irq_id) {
+ s->board_irqs[n] = qemu_irq_split(s->int_combiner_irq[n],
+ s->ext_gic_irq[irq_id-32]);
+ }
+ }
+}
+
+/*
+ * Get IRQ number from exynos4210 IRQ subsystem stub.
+ * To identify IRQ source use internal combiner group and bit number
+ * grp - group number
+ * bit - bit number inside group
+ */
+uint32_t exynos4210_get_irq(uint32_t grp, uint32_t bit)
+{
+ return EXYNOS4210_COMBINER_GET_IRQ_NUM(grp, bit);
+}
+
+/********* GIC part *********/
+
+static inline int
+gic_get_current_cpu(void)
+{
+ return cpu_single_env->cpu_index;
+}
+
+#include "arm_gic.c"
+
+typedef struct {
+ gic_state gic;
+ MemoryRegion cpu_container;
+ MemoryRegion dist_container;
+ MemoryRegion cpu_alias[NCPU];
+ MemoryRegion dist_alias[NCPU];
+ uint32_t num_cpu;
+} Exynos4210GicState;
+
+static int exynos4210_gic_init(SysBusDevice *dev)
+{
+ Exynos4210GicState *s = FROM_SYSBUSGIC(Exynos4210GicState, dev);
+ uint32_t i;
+ const char cpu_prefix[] = "exynos4210-gic-alias_cpu";
+ const char dist_prefix[] = "exynos4210-gic-alias_dist";
+ char cpu_alias_name[sizeof(cpu_prefix) + 3];
+ char dist_alias_name[sizeof(cpu_prefix) + 3];
+
+ gic_init(&s->gic, s->num_cpu);
+
+ memory_region_init(&s->cpu_container, "exynos4210-cpu-container",
+ EXYNOS4210_EXT_GIC_CPU_REGION_SIZE);
+ memory_region_init(&s->dist_container, "exynos4210-dist-container",
+ EXYNOS4210_EXT_GIC_DIST_REGION_SIZE);
+
+ for (i = 0; i < s->num_cpu; i++) {
+ /* Map CPU interface per SMP Core */
+ sprintf(cpu_alias_name, "%s%x", cpu_prefix, i);
+ memory_region_init_alias(&s->cpu_alias[i],
+ cpu_alias_name,
+ &s->gic.cpuiomem[0],
+ 0,
+ EXYNOS4210_GIC_CPU_REGION_SIZE);
+ memory_region_add_subregion(&s->cpu_container,
+ EXYNOS4210_EXT_GIC_CPU_GET_OFFSET(i), &s->cpu_alias[i]);
+
+ /* Map Distributer per SMP Core */
+ sprintf(dist_alias_name, "%s%x", dist_prefix, i);
+ memory_region_init_alias(&s->dist_alias[i],
+ dist_alias_name,
+ &s->gic.iomem,
+ 0,
+ EXYNOS4210_GIC_DIST_REGION_SIZE);
+ memory_region_add_subregion(&s->dist_container,
+ EXYNOS4210_EXT_GIC_DIST_GET_OFFSET(i), &s->dist_alias[i]);
+ }
+
+ sysbus_init_mmio(dev, &s->cpu_container);
+ sysbus_init_mmio(dev, &s->dist_container);
+
+ gic_cpu_write(&s->gic, 1, 0, 1);
+
+ return 0;
+}
+
+static SysBusDeviceInfo exynos4210_gic_info = {
+ .init = exynos4210_gic_init,
+ .qdev.name = "exynos4210.gic",
+ .qdev.size = sizeof(Exynos4210GicState),
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_UINT32("num-cpu", Exynos4210GicState, num_cpu, 1),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static void exynos4210_gic_register_devices(void)
+{
+ sysbus_register_withprop(&exynos4210_gic_info);
+}
+
+device_init(exynos4210_gic_register_devices)
+
+/*
+ * IRQGate struct.
+ * IRQ Gate represents OR gate between GICs to pass IRQ to PIC.
+ */
+typedef struct {
+ SysBusDevice busdev;
+
+ qemu_irq pic_irq[NCPU]; /* output IRQs to PICs */
+ uint32_t gpio_level[EXYNOS4210_IRQ_GATE_NINPUTS]; /* Input levels */
+} Exynos4210IRQGateState;
+
+static const VMStateDescription VMState_Exynos4210IRQGate = {
+ .name = "exynos4210.irq_gate",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(gpio_level, Exynos4210IRQGateState,
+ EXYNOS4210_IRQ_GATE_NINPUTS),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+/* Process a change in an external IRQ input. */
+static void exynos4210_irq_gate_handler(void *opaque, int irq, int level)
+{
+ Exynos4210IRQGateState *s =
+ (Exynos4210IRQGateState *)opaque;
+ uint32_t odd, even;
+
+ if (irq & 1) {
+ odd = irq;
+ even = irq & ~1;
+ } else {
+ even = irq;
+ odd = irq | 1;
+ }
+
+ assert(irq < EXYNOS4210_IRQ_GATE_NINPUTS);
+ s->gpio_level[irq] = level;
+
+ if (s->gpio_level[odd] >= 1 || s->gpio_level[even] >= 1) {
+ qemu_irq_raise(s->pic_irq[even >> 1]);
+ } else {
+ qemu_irq_lower(s->pic_irq[even >> 1]);
+ }
+
+ return;
+}
+
+static void exynos4210_irq_gate_reset(DeviceState *d)
+{
+ Exynos4210IRQGateState *s = (Exynos4210IRQGateState *)d;
+
+ memset(&s->gpio_level, 0, sizeof(s->gpio_level));
+}
+
+/*
+ * IRQ Gate initialization.
+ */
+static int exynos4210_irq_gate_init(SysBusDevice *dev)
+{
+ unsigned int i;
+ Exynos4210IRQGateState *s =
+ FROM_SYSBUS(Exynos4210IRQGateState, dev);
+
+ /* Allocate general purpose input signals and connect a handler to each of
+ * them */
+ qdev_init_gpio_in(&s->busdev.qdev, exynos4210_irq_gate_handler,
+ EXYNOS4210_IRQ_GATE_NINPUTS);
+
+ /* Connect SysBusDev irqs to device specific irqs */
+ for (i = 0; i < NCPU; i++) {
+ sysbus_init_irq(dev, &s->pic_irq[i]);
+ }
+
+ return 0;
+}
+
+static SysBusDeviceInfo exynos4210_irq_gate_info = {
+ .qdev.name = "exynos4210.irq_gate",
+ .qdev.size = sizeof(Exynos4210IRQGateState),
+ .qdev.reset = exynos4210_irq_gate_reset,
+ .qdev.vmsd = &VMState_Exynos4210IRQGate,
+ .init = exynos4210_irq_gate_init,
+};
+
+static void exynos4210_irq_gate_register_devices(void)
+{
+ sysbus_register_withprop(&exynos4210_irq_gate_info);
+}
+
+device_init(exynos4210_irq_gate_register_devices)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 04/11] ARM: exynos4210: IRQ subsystem support.
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 04/11] ARM: exynos4210: IRQ subsystem support Evgeny Voevodin
@ 2012-01-10 12:35 ` Peter Maydell
0 siblings, 0 replies; 25+ messages in thread
From: Peter Maydell @ 2012-01-10 12:35 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
>
> Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
> ---
> Makefile.target | 3 +-
> hw/exynos4210.c | 179 ++++++++++++++++++-
> hw/exynos4210.h | 46 +++++
> hw/exynos4210_combiner.c | 384 ++++++++++++++++++++++++++++++++++++++++
> hw/exynos4210_gic.c | 437 ++++++++++++++++++++++++++++++++++++++++++++++
> 5 files changed, 1044 insertions(+), 5 deletions(-)
> create mode 100644 hw/exynos4210_combiner.c
> create mode 100644 hw/exynos4210_gic.c
>
> diff --git a/Makefile.target b/Makefile.target
> index 0246947..ccd1f79 100644
> --- a/Makefile.target
> +++ b/Makefile.target
> @@ -336,7 +336,8 @@ obj-arm-y = integratorcp.o versatilepb.o arm_pic.o arm_timer.o
> obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
> obj-arm-y += versatile_pci.o
> obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
> -obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o
> +obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o exynos4210_gic.o \
> + exynos4210_combiner.o
Don't use the '\' line continuation, just start a new obj-arm-y += line.
> + for (n = 0; n < max; n++) {
> +
> + bit = EXYNOS4210_COMBINER_GET_BIT_NUM(n);
> +
> + switch (n) {
> + /* MDNIE_LCD1 INTG1*/
Space before the "*/", please.
> + case EXYNOS4210_COMBINER_GET_IRQ_NUM(1, 0) ...
> + EXYNOS4210_COMBINER_GET_IRQ_NUM(1, 3):
> + irq[n] = qemu_irq_split(qdev_get_gpio_in(dev, n),
> + irq[EXYNOS4210_COMBINER_GET_IRQ_NUM(0, bit + 4)]);
> + continue;
> + break;
The 'break' here is unreachable, right?
Also the indentation is off: the irq[n] line should start 4 chars
in from the 'case', not 8, and the 'continue' or 'break' should
too.
> @@ -112,16 +279,20 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
>
> /*** UARTs ***/
> exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR,
> - EXYNOS4210_UART0_FIFO_SIZE, 0, NULL, NULL);
> + EXYNOS4210_UART0_FIFO_SIZE, 0, NULL,
> + irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 0)]);
Having to modify the UART creation to add the IRQ line later suggests
this patch series isn't in quite the right order. My suggestion:
1. hw/sysbus.h: Increase maximum number of device IRQs
2. hw/arm_boot.c: Extend secondary CPU bootloader.
3. ARM: exynos4210: IRQ subsystem support.
4. ARM: Samsung exynos4210-based boards emulation
[fold hw/exynos4210.c: Boot secondary CPU. into this patch]
5. ARM: exynos4210: UART support
6. ARM: exynos4210: PWM support.
7. hw/lan9118: Add basic 16-bit mode support.
8. hw/exynos4210.c: Add LAN support for SMDKC210.
9. Exynos4210: added display controller implementation
> +++ b/hw/exynos4210_combiner.c
> @@ -0,0 +1,384 @@
> +/*
> + * Samsung exynos4210 Interrupt Combiner
> + *
> + * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
> + * All rights reserved.
> + *
> + * Evgeny Voevodin <e.voevodin@samsung.com>
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> + * See the GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, see <http://www.gnu.org/licenses/>.
> + */
I think it would be good to have a paragraph here explaining what
a combiner actually is, for the benefit of people not familiar
with the SoC.
> +static const MemoryRegionOps exynos4210_combiner_ops = {
> + .read = exynos4210_combiner_read,
> + .write = exynos4210_combiner_write,
> + .endianness = DEVICE_NATIVE_ENDIAN,
> +};
Indentation is wrong here.
> +
> +/*
> + * Internal Combiner initialization.
> + */
> +static int exynos4210_combiner_init(SysBusDevice *dev)
> +{
> + unsigned int i;
> + struct Exynos4210CombinerState *s =
> + FROM_SYSBUS(struct Exynos4210CombinerState, dev);
> +
> + /* Allocate general purpose input signals and connect a handler to each of
> + * them */
> + qdev_init_gpio_in(&s->busdev.qdev, exynos4210_combiner_handler, IIC_NIRQ);
> +
> + /* Connect SysBusDev irqs to device specific irqs */
> + for (i = 0; i < IIC_NIRQ; i++) {
> + sysbus_init_irq(dev, &s->output_irq[i]);
> + }
> +
> + memory_region_init_io(&s->iomem, &exynos4210_combiner_ops, s,
> + "exynos4210-combiner", IIC_REGION_SIZE);
> + sysbus_init_mmio(dev, &s->iomem);
> +
> + exynos4210_combiner_reset((DeviceState *)s);
You don't need to explicitly reset in the qdev init function if you've
registered the reset function as qdev.reset (as you have).
> + return 0;
> +}
> +
> +static SysBusDeviceInfo exynos4210_combiner_info = {
> + .qdev.name = "exynos4210.combiner",
> + .qdev.size = sizeof(struct Exynos4210CombinerState),
> + .qdev.reset = exynos4210_combiner_reset,
> + .qdev.vmsd = &VMState_Exynos4210Combiner,
> + .init = exynos4210_combiner_init,
> + .qdev.props = (Property[]) {
> + DEFINE_PROP_UINT32("external",
> + struct Exynos4210CombinerState,
> + external,
> + 0),
> + DEFINE_PROP_END_OF_LIST(),
> + }
> +};
More dodgy indentation -- can you go through and do a general check,
please?
> + memory_region_add_subregion(&s->cpu_container,
> + EXYNOS4210_EXT_GIC_CPU_GET_OFFSET(i), &s->cpu_alias[i]);
> +
> + /* Map Distributer per SMP Core */
"Distributor".
-- PMM
^ permalink raw reply [flat|nested] 25+ messages in thread
* [Qemu-devel] [PATCH v5 05/11] ARM: exynos4210: PWM support.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (3 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 04/11] ARM: exynos4210: IRQ subsystem support Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 12:40 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 06/11] hw/arm_boot.c: Extend secondary CPU bootloader Evgeny Voevodin
` (5 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
Makefile.target | 2 +-
hw/exynos4210.c | 12 ++
hw/exynos4210_pwm.c | 416 +++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 429 insertions(+), 1 deletions(-)
create mode 100644 hw/exynos4210_pwm.c
diff --git a/Makefile.target b/Makefile.target
index ccd1f79..70a2ef8 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -337,7 +337,7 @@ obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
obj-arm-y += versatile_pci.o
obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o exynos4210_gic.o \
- exynos4210_combiner.o
+ exynos4210_combiner.o exynos4210_pwm.o
obj-arm-y += arm_mptimer.o
obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
obj-arm-y += pl061.o
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
index a85eb5d..a350199 100644
--- a/hw/exynos4210.c
+++ b/hw/exynos4210.c
@@ -30,6 +30,9 @@
#define EXYNOS4210_CHIPID_ADDR 0x10000000
+/* PWM */
+#define EXYNOS4210_PWM_BASE_ADDR 0x139D0000
+
/* UART's definitions */
#define EXYNOS4210_UART0_BASE_ADDR 0x13800000
#define EXYNOS4210_UART1_BASE_ADDR 0x13810000
@@ -277,6 +280,15 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
memory_region_add_subregion(system_mem, EXYNOS4210_DRAM0_BASE_ADDR,
&s->dram0_mem);
+ /* PWM */
+ sysbus_create_varargs("exynos4210.pwm", EXYNOS4210_PWM_BASE_ADDR,
+ irq_table[exynos4210_get_irq(22, 0)],
+ irq_table[exynos4210_get_irq(22, 1)],
+ irq_table[exynos4210_get_irq(22, 2)],
+ irq_table[exynos4210_get_irq(22, 3)],
+ irq_table[exynos4210_get_irq(22, 4)],
+ NULL);
+
/*** UARTs ***/
exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR,
EXYNOS4210_UART0_FIFO_SIZE, 0, NULL,
diff --git a/hw/exynos4210_pwm.c b/hw/exynos4210_pwm.c
new file mode 100644
index 0000000..3253bfa
--- /dev/null
+++ b/hw/exynos4210_pwm.c
@@ -0,0 +1,416 @@
+/*
+ * Samsung exynos4210 Pulse Width Modulation Timer
+ *
+ * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
+ * All rights reserved.
+ *
+ * Evgeny Voevodin <e.voevodin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "sysbus.h"
+#include "qemu-timer.h"
+#include "qemu-common.h"
+#include "hw.h"
+
+#include "exynos4210.h"
+
+//#define DEBUG_PWM
+
+#ifdef DEBUG_PWM
+#define DPRINTF(fmt, ...) \
+ do { fprintf(stdout, "PWM: [%24s:%5d] " fmt, __func__, __LINE__, \
+ ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) do {} while (0)
+#endif
+
+#define EXYNOS4210_PWM_TIMERS_NUM 5
+#define EXYNOS4210_PWM_REG_MEM_SIZE 0x50
+
+#define TCFG0 0x0000
+#define TCFG1 0x0004
+#define TCON 0x0008
+#define TCNTB0 0x000C
+#define TCMPB0 0x0010
+#define TCNTO0 0x0014
+#define TCNTB1 0x0018
+#define TCMPB1 0x001C
+#define TCNTO1 0x0020
+#define TCNTB2 0x0024
+#define TCMPB2 0x0028
+#define TCNTO2 0x002C
+#define TCNTB3 0x0030
+#define TCMPB3 0x0034
+#define TCNTO3 0x0038
+#define TCNTB4 0x003C
+#define TCNTO4 0x0040
+#define TINT_CSTAT 0x0044
+
+#define TCNTB(x) (0xC*x)
+#define TCMPB(x) (0xC*x+1)
+#define TCNTO(x) (0xC*x+2)
+
+#define GET_PRESCALER(reg, x) ((reg&(0xFF<<(8*x)))>>8*x)
+#define GET_DIVIDER(reg, x) (1<<((0xF<<(4*x))>>(4*x)))
+
+/*
+ * Attention! Timer4 doesn't have OUTPUT_INVERTER,
+ * so Auto Reload bit is not accessible by macros!
+ */
+#define TCON_TIMER_BASE(x) ((x ? 1 : 0)*4 + 4*x)
+#define TCON_TIMER_START(x) (1<<(TCON_TIMER_BASE(x) + 0))
+#define TCON_TIMER_MANUAL_UPD(x) (1<<(TCON_TIMER_BASE(x) + 1))
+#define TCON_TIMER_OUTPUT_INV(x) (1<<(TCON_TIMER_BASE(x) + 2))
+#define TCON_TIMER_AUTO_RELOAD(x) (1<<(TCON_TIMER_BASE(x) + 3))
+#define TCON_TIMER4_AUTO_RELOAD (1<<22)
+
+#define TINT_CSTAT_STATUS(x) (1<<(5+x))
+#define TINT_CSTAT_ENABLE(x) (1<<x)
+
+/* timer struct */
+typedef struct {
+ uint32_t id; /* timer id */
+ qemu_irq irq; /* local timer irq */
+ uint32_t freq; /* timer frequency */
+
+ /* use ptimer.c to represent count down timer */
+ ptimer_state *ptimer; /* timer */
+
+ /* registers */
+ uint32_t reg_tcntb; /* counter register buffer */
+ uint32_t reg_tcmpb; /* compare register buffer */
+
+ struct Exynos4210PWMState *parent;
+
+} Exynos4210_pwm;
+
+
+typedef struct Exynos4210PWMState {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+
+ uint32_t reg_tcfg[2];
+ uint32_t reg_tcon;
+ uint32_t reg_tint_cstat;
+
+ Exynos4210_pwm timer[EXYNOS4210_PWM_TIMERS_NUM];
+
+} Exynos4210PWMState;
+
+/*** VMState ***/
+static const VMStateDescription VMState_Exynos4210_pwm = {
+ .name = "exynos4210.pwm.pwm",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(id, Exynos4210_pwm),
+ VMSTATE_UINT32(freq, Exynos4210_pwm),
+ VMSTATE_PTIMER(ptimer, Exynos4210_pwm),
+ VMSTATE_UINT32(reg_tcntb, Exynos4210_pwm),
+ VMSTATE_UINT32(reg_tcmpb, Exynos4210_pwm),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription VMState_Exynos4210PWMState = {
+ .name = "exynos4210.pwm",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(reg_tcfg, Exynos4210PWMState, 2),
+ VMSTATE_UINT32(reg_tcon, Exynos4210PWMState),
+ VMSTATE_UINT32(reg_tint_cstat, Exynos4210PWMState),
+ VMSTATE_STRUCT_ARRAY(timer, Exynos4210PWMState,
+ EXYNOS4210_PWM_TIMERS_NUM, 0,
+ VMState_Exynos4210_pwm, Exynos4210_pwm),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+/*
+ * PWM update frequency
+ */
+static void exynos4210_pwm_update_freq(Exynos4210PWMState *s, uint32_t id)
+{
+ uint32_t freq;
+ freq = s->timer[id].freq;
+ if (id > 1) {
+ s->timer[id].freq = 24000000 /
+ ((GET_PRESCALER(s->reg_tcfg[0], 1) + 1) *
+ (1<<GET_DIVIDER(s->reg_tcfg[1], id)));
+ } else {
+ s->timer[id].freq = 24000000 /
+ ((GET_PRESCALER(s->reg_tcfg[0], 0) + 1) *
+ (1<<GET_DIVIDER(s->preg_tcfg[1], id)));
+ }
+
+ if (freq != s->timer[id].freq) {
+ ptimer_set_freq(s->timer[id].ptimer, s->timer[id].freq);
+ DPRINTF("freq=%dHz\n", s->timer[id].freq);
+ }
+}
+
+/*
+ * Counter tick handler
+ */
+static void exynos4210_pwm_tick(void *opaque)
+{
+ Exynos4210_pwm *s = (Exynos4210_pwm *)opaque;
+ Exynos4210PWMState *p = (Exynos4210PWMState *)s->parent;
+ uint32_t id = s->id;
+ bool cmp;
+
+ DPRINTF("timer %d tick\n", id);
+
+ /* set irq status */
+ p->reg_tint_cstat |= TINT_CSTAT_STATUS(id);
+
+ /* raise IRQ */
+ if (p->reg_tint_cstat & TINT_CSTAT_ENABLE(id)) {
+ DPRINTF("timer %d IRQ\n", id);
+ qemu_irq_raise(p->timer[id].irq);
+ }
+
+ /* reload timer */
+ if (id != 4) {
+ cmp = p->reg_tcon & TCON_TIMER_AUTO_RELOAD(id);
+ } else {
+ cmp = p->reg_tcon & TCON_TIMER4_AUTO_RELOAD;
+ }
+
+ if (cmp) {
+ DPRINTF("auto reload timer %d count to %x\n", id,
+ p->timer[id].reg_tcntb);
+ ptimer_set_count(p->timer[id].ptimer, p->timer[id].reg_tcntb);
+ ptimer_run(p->timer[id].ptimer, 1);
+ } else {
+ /* stop timer, set status to STOP, see Basic Timer Operation */
+ p->reg_tcon = ~TCON_TIMER_START(id);
+ ptimer_stop(p->timer[id].ptimer);
+ }
+}
+
+/*
+ * PWM Read
+ */
+static uint64_t exynos4210_pwm_read(void *opaque, target_phys_addr_t offset,
+ unsigned size)
+{
+ Exynos4210PWMState *s = (Exynos4210PWMState *)opaque;
+ uint32_t value = 0;
+ int index;
+
+ switch (offset) {
+ case TCFG0: case TCFG1:
+ index = (offset - TCFG0)>>2;
+ value = s->reg_tcfg[index];
+ break;
+
+ case TCON:
+ value = s->reg_tcon;
+ break;
+
+ case TCNTB0: case TCNTB1:
+ case TCNTB2: case TCNTB3: case TCNTB4:
+ index = (offset - TCNTB0)/0xC;
+ value = s->timer[index].reg_tcntb;
+ break;
+
+ case TCMPB0: case TCMPB1:
+ case TCMPB2: case TCMPB3:
+ index = (offset - TCMPB0)/0xC;
+ value = s->timer[index].reg_tcmpb;
+ break;
+
+ case TCNTO0: case TCNTO1:
+ case TCNTO2: case TCNTO3: case TCNTO4:
+ index = (offset == TCNTO4) ? 4 : (offset - TCNTO0)/0xC;
+ value = ptimer_get_count(s->timer[index].ptimer);
+ break;
+
+ case TINT_CSTAT:
+ value = s->reg_tint_cstat;
+ break;
+
+ default:
+ fprintf(stderr,
+ "[exynos4210.pwm: bad read offset " TARGET_FMT_plx "]\n",
+ offset);
+ break;
+ }
+ return value;
+}
+
+/*
+ * PWM Write
+ */
+static void exynos4210_pwm_write(void *opaque, target_phys_addr_t offset,
+ uint64_t value, unsigned size)
+{
+ Exynos4210PWMState *s = (Exynos4210PWMState *)opaque;
+ int index;
+ uint32_t new_val;
+ int i;
+
+ switch (offset) {
+ case TCFG0: case TCFG1:
+ index = (offset - TCFG0)>>2;
+ s->reg_tcfg[index] = value;
+
+ /* update timers frequencies */
+ for (i = 0; i < EXYNOS4210_PWM_TIMERS_NUM; i++) {
+ exynos4210_pwm_update_freq(s, s->timer[i].id);
+ }
+ break;
+
+ case TCON:
+ for (i = 0; i < EXYNOS4210_PWM_TIMERS_NUM; i++) {
+ if ((value & TCON_TIMER_MANUAL_UPD(i)) >
+ (s->reg_tcon & TCON_TIMER_MANUAL_UPD(i))) {
+ /*
+ * TCNTB and TCMPB are loaded into TCNT and TCMP.
+ * Update timers.
+ */
+
+ /* this will start timer to run, this ok, because
+ * during processing start bit timer will be stopped
+ * if needed */
+ ptimer_set_count(s->timer[i].ptimer, s->timer[i].reg_tcntb);
+ DPRINTF("set timer %d count to %x\n", i,
+ s->timer[i].reg_tcntb);
+ }
+
+ if ((value & TCON_TIMER_START(i)) >
+ (s->reg_tcon & TCON_TIMER_START(i))) {
+ /* changed to start */
+ ptimer_run(s->timer[i].ptimer, 1);
+ DPRINTF("run timer %d\n", i);
+ }
+
+ if ((value & TCON_TIMER_START(i)) <
+ (s->reg_tcon & TCON_TIMER_START(i))) {
+ /* changed to stop */
+ ptimer_stop(s->timer[i].ptimer);
+ DPRINTF("stop timer %d\n", i);
+ }
+ }
+ s->reg_tcon = value;
+ break;
+
+ case TCNTB0: case TCNTB1:
+ case TCNTB2: case TCNTB3: case TCNTB4:
+ index = (offset - TCNTB0)/0xC;
+ s->timer[index].reg_tcntb = value;
+ break;
+
+ case TCMPB0: case TCMPB1:
+ case TCMPB2: case TCMPB3:
+ index = (offset - TCMPB0)/0xC;
+ s->timer[index].reg_tcmpb = value;
+ break;
+
+ case TINT_CSTAT:
+ new_val = (s->reg_tint_cstat&0x3E0) + (0x1F & value);
+ new_val &= ~(0x3E0 & value);
+
+ for (i = 0; i < EXYNOS4210_PWM_TIMERS_NUM; i++) {
+ if ((new_val & TINT_CSTAT_STATUS(i)) <
+ (s->reg_tint_cstat & TINT_CSTAT_STATUS(i))) {
+ qemu_irq_lower(s->timer[i].irq);
+ }
+ }
+
+ s->reg_tint_cstat = new_val;
+ break;
+
+ default:
+ fprintf(stderr,
+ "[exynos4210.pwm: bad write offset " TARGET_FMT_plx "]\n",
+ offset);
+ break;
+
+ }
+}
+
+/*
+ * Set default values to timer fields and registers
+ */
+static void exynos4210_pwm_reset(DeviceState *d)
+{
+ Exynos4210PWMState *s = (Exynos4210PWMState *)d;
+ int i;
+ s->reg_tcfg[0] = 0x0101;
+ s->reg_tcfg[1] = 0x0;
+ s->reg_tcon = 0;
+ s->reg_tint_cstat = 0;
+ for (i = 0; i < EXYNOS4210_PWM_TIMERS_NUM; i++) {
+ s->timer[i].reg_tcmpb = 0;
+ s->timer[i].reg_tcntb = 0;
+
+ exynos4210_pwm_update_freq(s, s->timer[i].id);
+ ptimer_stop(s->timer[i].ptimer);
+ }
+}
+
+static const MemoryRegionOps exynos4210_pwm_ops = {
+ .read = exynos4210_pwm_read,
+ .write = exynos4210_pwm_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+/*
+ * PWM timer initialization
+ */
+static int exynos4210_pwm_init(SysBusDevice *dev)
+{
+ Exynos4210PWMState *s = FROM_SYSBUS(Exynos4210PWMState, dev);
+ int i;
+ QEMUBH *bh;
+
+ for (i = 0; i < EXYNOS4210_PWM_TIMERS_NUM; i++) {
+ bh = qemu_bh_new(exynos4210_pwm_tick, &s->timer[i]);
+ sysbus_init_irq(dev, &s->timer[i].irq);
+ s->timer[i].ptimer = ptimer_init(bh);
+ s->timer[i].id = i;
+ s->timer[i].parent = s;
+ }
+
+ memory_region_init_io(&s->iomem, &exynos4210_pwm_ops, s, "exynos4210-pwm",
+ EXYNOS4210_PWM_REG_MEM_SIZE);
+ sysbus_init_mmio(dev, &s->iomem);
+
+ return 0;
+}
+
+static SysBusDeviceInfo exynos4210_pwm_info = {
+ .qdev.name = "exynos4210.pwm",
+ .qdev.size = sizeof(struct Exynos4210PWMState),
+ .qdev.reset = exynos4210_pwm_reset,
+ .qdev.vmsd = &VMState_Exynos4210PWMState,
+ .init = exynos4210_pwm_init,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static void exynos4210_pwm_register_devices(void)
+{
+ sysbus_register_withprop(&exynos4210_pwm_info);
+}
+
+device_init(exynos4210_pwm_register_devices)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 05/11] ARM: exynos4210: PWM support.
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 05/11] ARM: exynos4210: PWM support Evgeny Voevodin
@ 2012-01-10 12:40 ` Peter Maydell
2012-01-10 13:46 ` Andreas Färber
0 siblings, 1 reply; 25+ messages in thread
From: Peter Maydell @ 2012-01-10 12:40 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
> +
> +#define TCNTB(x) (0xC*x)
> +#define TCMPB(x) (0xC*x+1)
> +#define TCNTO(x) (0xC*x+2)
> +
> +#define GET_PRESCALER(reg, x) ((reg&(0xFF<<(8*x)))>>8*x)
> +#define GET_DIVIDER(reg, x) (1<<((0xF<<(4*x))>>(4*x)))
These macros (and the ones below) brackets around arguments (ie "(x)")
to avoid operator precedence issues.
> +static SysBusDeviceInfo exynos4210_pwm_info = {
> + .qdev.name = "exynos4210.pwm",
> + .qdev.size = sizeof(struct Exynos4210PWMState),
> + .qdev.reset = exynos4210_pwm_reset,
> + .qdev.vmsd = &VMState_Exynos4210PWMState,
> + .init = exynos4210_pwm_init,
> + .qdev.props = (Property[]) {
> + DEFINE_PROP_END_OF_LIST(),
> + }
If you don't have any properties, you don't need to set .qdev.props
at all -- there's no need to explicitly write out an empty list like this.
-- PMM
^ permalink raw reply [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 05/11] ARM: exynos4210: PWM support.
2012-01-10 12:40 ` Peter Maydell
@ 2012-01-10 13:46 ` Andreas Färber
0 siblings, 0 replies; 25+ messages in thread
From: Andreas Färber @ 2012-01-10 13:46 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: Peter Maydell, qemu-devel, kyungmin.park, d.solodkiy, m.kozlov,
jehyung.lee
Am 10.01.2012 13:40, schrieb Peter Maydell:
> On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
>> +
>> +#define TCNTB(x) (0xC*x)
>> +#define TCMPB(x) (0xC*x+1)
>> +#define TCNTO(x) (0xC*x+2)
>> +
>> +#define GET_PRESCALER(reg, x) ((reg&(0xFF<<(8*x)))>>8*x)
>> +#define GET_DIVIDER(reg, x) (1<<((0xF<<(4*x))>>(4*x)))
>
> These macros (and the ones below) brackets around arguments (ie "(x)")
> to avoid operator precedence issues.
And add the usual spaces around operators for readability, please.
>> +static SysBusDeviceInfo exynos4210_pwm_info = {
>> + .qdev.name = "exynos4210.pwm",
>> + .qdev.size = sizeof(struct Exynos4210PWMState),
>> + .qdev.reset = exynos4210_pwm_reset,
>> + .qdev.vmsd = &VMState_Exynos4210PWMState,
>> + .init = exynos4210_pwm_init,
>> + .qdev.props = (Property[]) {
>> + DEFINE_PROP_END_OF_LIST(),
>> + }
>
> If you don't have any properties, you don't need to set .qdev.props
> at all -- there's no need to explicitly write out an empty list like this.
For qdev, that's a matter of taste (I usually add empty lists myself).
With QOM that leads to a named static array with one NULL entry that can
be avoided by following Peter's suggestion.
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
^ permalink raw reply [flat|nested] 25+ messages in thread
* [Qemu-devel] [PATCH v5 06/11] hw/arm_boot.c: Extend secondary CPU bootloader.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (4 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 05/11] ARM: exynos4210: PWM support Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 15:32 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 07/11] ARM: exynos4210: MCT support Evgeny Voevodin
` (4 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
Secondary CPU bootloader enables interrupt and issues wfi until start address
is written to system controller. The position where to find this start
address is hardcoded to 0x10000030. This commit extends bootloader for
secondary CPU to allow a target board to cpecify a position where
to find start address. If target board doesn't specify start address then
default 0x10000030 is used.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
hw/arm-misc.h | 1 +
hw/arm_boot.c | 23 +++++++++++++++--------
2 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/hw/arm-misc.h b/hw/arm-misc.h
index af403a1..6e8ae6b 100644
--- a/hw/arm-misc.h
+++ b/hw/arm-misc.h
@@ -31,6 +31,7 @@ struct arm_boot_info {
const char *initrd_filename;
target_phys_addr_t loader_start;
target_phys_addr_t smp_loader_start;
+ target_phys_addr_t smp_bootreg_addr;
target_phys_addr_t smp_priv_base;
int nb_cpus;
int board_id;
diff --git a/hw/arm_boot.c b/hw/arm_boot.c
index 215d5de..700a89d 100644
--- a/hw/arm_boot.c
+++ b/hw/arm_boot.c
@@ -31,17 +31,17 @@ static uint32_t bootloader[] = {
/* Entry point for secondary CPUs. Enable interrupt controller and
Issue WFI until start address is written to system controller. */
static uint32_t smpboot[] = {
- 0xe59f0020, /* ldr r0, privbase */
- 0xe3a01001, /* mov r1, #1 */
- 0xe5801100, /* str r1, [r0, #0x100] */
- 0xe3a00201, /* mov r0, #0x10000000 */
- 0xe3800030, /* orr r0, #0x30 */
+ 0xe59f201c, /* ldr r2, privbase */
+ 0xe59f001c, /* ldr r0, startaddr */
+ 0xe3a01001, /* mov r1, #1 */
+ 0xe5821100, /* str r1, [r2, #256] */
0xe320f003, /* wfi */
0xe5901000, /* ldr r1, [r0] */
0xe1110001, /* tst r1, r1 */
0x0afffffb, /* beq <wfi> */
0xe12fff11, /* bx r1 */
- 0 /* privbase: Private memory region base address. */
+ 0, /* privbase: Private memory region base address. */
+ 0 /* bootreg: Boot register address is held here */
};
#define WRITE_WORD(p, value) do { \
@@ -179,6 +179,8 @@ static void do_cpu_reset(void *opaque)
{
CPUState *env = opaque;
const struct arm_boot_info *info = env->boot_info;
+ uint32_t smp_bootreg_addr = 0;
+ target_phys_addr_t p = info->smp_bootreg_addr;
cpu_reset(env);
if (info) {
@@ -197,6 +199,7 @@ static void do_cpu_reset(void *opaque)
info->loader_start);
}
} else {
+ WRITE_WORD(p, smp_bootreg_addr);
env->regs[15] = info->smp_loader_start;
}
}
@@ -272,8 +275,12 @@ void arm_load_kernel(CPUState *env, struct arm_boot_info *info)
rom_add_blob_fixed("bootloader", bootloader, sizeof(bootloader),
info->loader_start);
if (info->nb_cpus > 1) {
- smpboot[10] = info->smp_priv_base;
- for (n = 0; n < sizeof(smpboot) / 4; n++) {
+ if (!info->smp_bootreg_addr) {
+ info->smp_bootreg_addr = 0x10000030;
+ }
+ smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr;
+ smpboot[ARRAY_SIZE(smpboot) - 2] = info->smp_priv_base;
+ for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
smpboot[n] = tswap32(smpboot[n]);
}
rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 06/11] hw/arm_boot.c: Extend secondary CPU bootloader.
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 06/11] hw/arm_boot.c: Extend secondary CPU bootloader Evgeny Voevodin
@ 2012-01-10 15:32 ` Peter Maydell
0 siblings, 0 replies; 25+ messages in thread
From: Peter Maydell @ 2012-01-10 15:32 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
> Secondary CPU bootloader enables interrupt and issues wfi until start address
> is written to system controller. The position where to find this start
> address is hardcoded to 0x10000030. This commit extends bootloader for
> secondary CPU to allow a target board to cpecify a position where
> to find start address. If target board doesn't specify start address then
> default 0x10000030 is used.
I think this commit message could be slightly clearer: I suggest:
hw/arm_boot.c: Make SMP boards specify address to poll in bootup loop
The secondary CPU bootloader in arm_boot.c holds secondary CPUs in a
pen until the primary CPU releases them. Make boards specify the
address to be polled to determine whether to leave the pen (it was
previously hardcoded to 0x10000030, which is a Versatile Express/
Realview specific system register address).
[see below for why I say "Make" rather than "Allow".]
> @@ -179,6 +179,8 @@ static void do_cpu_reset(void *opaque)
> {
> CPUState *env = opaque;
> const struct arm_boot_info *info = env->boot_info;
> + uint32_t smp_bootreg_addr = 0;
> + target_phys_addr_t p = info->smp_bootreg_addr;
>
> cpu_reset(env);
> if (info) {
This is wrong because we dereference info before we check whether
it is NULL.
I apologise for not spotting earlier that WRITE_WORD()
modifies its first argument, or I wouldn't have suggested it.
Let's just do
stl_phys_notdirty(info->smp_bootreg_addr, 0);
in the else clause below; then we can drop both the local vars here.
> @@ -197,6 +199,7 @@ static void do_cpu_reset(void *opaque)
> info->loader_start);
> }
> } else {
> + WRITE_WORD(p, smp_bootreg_addr);
> env->regs[15] = info->smp_loader_start;
> }
> }
> @@ -272,8 +275,12 @@ void arm_load_kernel(CPUState *env, struct arm_boot_info *info)
> rom_add_blob_fixed("bootloader", bootloader, sizeof(bootloader),
> info->loader_start);
> if (info->nb_cpus > 1) {
> - smpboot[10] = info->smp_priv_base;
> - for (n = 0; n < sizeof(smpboot) / 4; n++) {
> + if (!info->smp_bootreg_addr) {
> + info->smp_bootreg_addr = 0x10000030;
> + }
I think we should just mandate that boards which set
info->nb_cpus to something > 1 must also set info->smp_bootreg_addr.
0x10000030 is realview/vexpress/etc specific (it's the address of
one of the flag registers in the sysregs).
There are only two boards which this affects:
hw/realview.c
hw/vexpress.c
(all the other ARM boards are single core).
So it's not a huge effort to update those two boards and it means
we don't need this bit of backcompat code.
Otherwise OK.
-- PMM
^ permalink raw reply [flat|nested] 25+ messages in thread
* [Qemu-devel] [PATCH v5 07/11] ARM: exynos4210: MCT support.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (5 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 06/11] hw/arm_boot.c: Extend secondary CPU bootloader Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 16:13 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 08/11] hw/exynos4210.c: Boot secondary CPU Evgeny Voevodin
` (3 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
Makefile.target | 2 +-
hw/exynos4210.c | 19 +
hw/exynos4210_mct.c | 1494 +++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 1514 insertions(+), 1 deletions(-)
create mode 100644 hw/exynos4210_mct.c
diff --git a/Makefile.target b/Makefile.target
index 70a2ef8..f11d4c4 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -337,7 +337,7 @@ obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
obj-arm-y += versatile_pci.o
obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o exynos4210_gic.o \
- exynos4210_combiner.o exynos4210_pwm.o
+ exynos4210_combiner.o exynos4210_pwm.o exynos4210_mct.o
obj-arm-y += arm_mptimer.o
obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
obj-arm-y += pl061.o
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
index a350199..f958980 100644
--- a/hw/exynos4210.c
+++ b/hw/exynos4210.c
@@ -33,6 +33,9 @@
/* PWM */
#define EXYNOS4210_PWM_BASE_ADDR 0x139D0000
+/* MCT */
+#define EXYNOS4210_MCT_BASE_ADDR 0x10050000
+
/* UART's definitions */
#define EXYNOS4210_UART0_BASE_ADDR 0x13800000
#define EXYNOS4210_UART1_BASE_ADDR 0x13810000
@@ -289,6 +292,22 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
irq_table[exynos4210_get_irq(22, 4)],
NULL);
+ /* Multi Core Timer */
+ dev = qdev_create(NULL, "exynos4210.mct");
+ qdev_init_nofail(dev);
+ busdev = sysbus_from_qdev(dev);
+ for (n = 0; n < 4; n++) {
+ /* Connect global timer interrupts to Combiner gpio_in */
+ sysbus_connect_irq(busdev, n,
+ irq_table[exynos4210_get_irq(1, 4 + n)]);
+ }
+ /* Connect local timer interrupts to Combiner gpio_in */
+ sysbus_connect_irq(busdev, 4,
+ irq_table[exynos4210_get_irq(51, 0)]);
+ sysbus_connect_irq(busdev, 5,
+ irq_table[exynos4210_get_irq(35, 3)]);
+ sysbus_mmio_map(busdev, 0, EXYNOS4210_MCT_BASE_ADDR);
+
/*** UARTs ***/
exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR,
EXYNOS4210_UART0_FIFO_SIZE, 0, NULL,
diff --git a/hw/exynos4210_mct.c b/hw/exynos4210_mct.c
new file mode 100644
index 0000000..0ef32b8
--- /dev/null
+++ b/hw/exynos4210_mct.c
@@ -0,0 +1,1494 @@
+/*
+ * Samsung exynos4210 Multi Core timer
+ *
+ * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
+ * All rights reserved.
+ *
+ * Evgeny Voevodin <e.voevodin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * Global Timer:
+ *
+ * Consists of two timers. First represents Free Running Counter and second
+ * is used to measure interval from FRC to nearest comparator.
+ *
+ * 0 0xFFFF...
+ * | timer0 |
+ * | <-------------------------------------------------------------- |
+ * | --------------------------------------------frc---------------> |
+ * |______________________________________________|__________________|
+ * CMP0 CMP1 CMP2 | CMP3
+ * __| |_
+ * | timer1 |
+ * | -------------> |
+ * frc CMPx
+ *
+ * Problem: when implementing global timer as is, overflow arises.
+ * next_time = cur_time + period*count;
+ * period and count are 64 bits width and count == 0xFF..FF 64its.
+ * Lets arm timer for 0xFFFFFFFF count and update internal G_CNT register
+ * during each event.
+ *
+ * Problem: both timers need to be implemented using MCT_XT_COUNTER_STEP because
+ * local timer contains two counters: TCNT and ICNT. TCNT == 0 -> ICNT--.
+ * IRQ is generated when ICNT riches zero. If make timer for every TCNT == 0
+ * possible too frequently events (yes, if ICNT == 0 both, we got no luck).
+ * So, better to have one uint64_t counter equal to TCNT*ICNT and arm ptimer.c
+ * for a minimum(TCNT*ICNT, MCT_GT_COUNTER_STEP);
+ */
+
+#include "sysbus.h"
+#include "qemu-timer.h"
+#include "qemu-common.h"
+#include "osdep.h"
+
+#include "exynos4210.h"
+
+//#define DEBUG_MCT
+
+#ifdef DEBUG_MCT
+#define DPRINTF(fmt, ...) \
+ do { fprintf(stdout, "MCT: [%24s:%5d] " fmt, __func__, __LINE__, \
+ ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) do {} while (0)
+#endif
+
+#define MCT_CFG 0x000
+#define G_CNT_L 0x100
+#define G_CNT_U 0x104
+#define G_CNT_WSTAT 0x110
+#define G_COMP0_L 0x200
+#define G_COMP0_U 0x204
+#define G_COMP0_ADD_INCR 0x208
+#define G_COMP1_L 0x210
+#define G_COMP1_U 0x214
+#define G_COMP1_ADD_INCR 0x218
+#define G_COMP2_L 0x220
+#define G_COMP2_U 0x224
+#define G_COMP2_ADD_INCR 0x228
+#define G_COMP3_L 0x230
+#define G_COMP3_U 0x234
+#define G_COMP3_ADD_INCR 0x238
+#define G_TCON 0x240
+#define G_INT_CSTAT 0x244
+#define G_INT_ENB 0x248
+#define G_WSTAT 0x24C
+#define L0_TCNTB 0x300
+#define L0_TCNTO 0x304
+#define L0_ICNTB 0x308
+#define L0_ICNTO 0x30C
+#define L0_FRCNTB 0x310
+#define L0_FRCNTO 0x314
+#define L0_TCON 0x320
+#define L0_INT_CSTAT 0x330
+#define L0_INT_ENB 0x334
+#define L0_WSTAT 0x340
+#define L1_TCNTB 0x400
+#define L1_TCNTO 0x404
+#define L1_ICNTB 0x408
+#define L1_ICNTO 0x40C
+#define L1_FRCNTB 0x410
+#define L1_FRCNTO 0x414
+#define L1_TCON 0x420
+#define L1_INT_CSTAT 0x430
+#define L1_INT_ENB 0x434
+#define L1_WSTAT 0x440
+
+#define MCT_CFG_GET_PRESCALER(x) (x&0xFF)
+#define MCT_CFG_GET_DIVIDER(x) (1<<(x>>8 & 7))
+
+#define GET_G_COMP_IDX(offset) ((offset - G_COMP0_L)/0x10)
+#define GET_G_COMP_ADD_INCR_IDX(offset) ((offset - G_COMP0_ADD_INCR)/0x10)
+
+#define G_COMP_L(x) (G_COMP0_L+x*0x10)
+#define G_COMP_U(x) (G_COMP0_U+x*0x10)
+
+#define G_COMP_ADD_INCR(x) (G_COMP0_ADD_INCR+x*0x10)
+
+/* MCT bits */
+#define G_TCON_COMP_ENABLE(x) (1<<2*x)
+#define G_TCON_AUTO_ICREMENT(x) (1<<(2*x + 1))
+#define G_TCON_TIMER_ENABLE (1<<8)
+
+#define G_INT_ENABLE(x) (1<<x)
+#define G_INT_CSTAT_COMP(x) (1<<x)
+
+#define G_CNT_WSTAT_L 1
+#define G_CNT_WSTAT_U 2
+
+#define G_WSTAT_COMP_L(x) (1<<4*x)
+#define G_WSTAT_COMP_U(x) (1<<((4*x)+1))
+#define G_WSTAT_COMP_ADDINCR(x) (1<<((4*x)+2))
+#define G_WSTAT_TCON_WRITE (1<<16)
+
+#define GET_L_TIMER_IDX(offset) (((offset&0xF00) - L0_TCNTB)/0x100)
+#define GET_L_TIMER_CNT_REG_IDX(offset, lt_i) \
+ ((offset - (L0_TCNTB+0x100*lt_i))>>2)
+
+#define L_ICNTB_MANUAL_UPDATE (1<<31)
+
+#define L_TCON_TICK_START (1)
+#define L_TCON_INT_START (1<<1)
+#define L_TCON_INTERVAL_MODE (1<<2)
+#define L_TCON_FRC_START (1<<3)
+
+#define L_INT_CSTAT_INTCNT (1<<0)
+#define L_INT_CSTAT_FRCCNT (1<<1)
+
+#define L_INT_INTENB_ICNTEIE (1<<0)
+#define L_INT_INTENB_FRCEIE (1<<1)
+
+#define L_WSTAT_TCNTB_WRITE (1<<0)
+#define L_WSTAT_ICNTB_WRITE (1<<1)
+#define L_WSTAT_FRCCNTB_WRITE (1<<2)
+#define L_WSTAT_TCON_WRITE (1<<3)
+
+enum local_timer_reg_cnt_indexes {
+ L_REG_CNT_TCNTB,
+ L_REG_CNT_TCNTO,
+ L_REG_CNT_ICNTB,
+ L_REG_CNT_ICNTO,
+ L_REG_CNT_FRCCNTB,
+ L_REG_CNT_FRCCNTO,
+
+ L_REG_CNT_AMOUNT
+};
+
+#define MCT_NIRQ 6
+#define MCT_SFR_SIZE 0x444
+
+#define MCT_GT_CMP_NUM 4
+
+#define MCT_GT_MAX_VAL 0xFFFFFFFFFFFFFFFF
+
+#define MCT_GT_COUNTER_STEP 0x100000000
+#define MCT_LT_COUNTER_STEP 0x100000000
+#define MCT_LT_CNT_LOW_LIMIT 0x100
+
+/* global timer */
+typedef struct {
+ qemu_irq irq[MCT_GT_CMP_NUM];
+
+ struct gregs {
+ uint64_t cnt;
+ uint32_t cnt_wstat;
+ uint32_t tcon;
+ uint32_t int_cstat;
+ uint32_t int_enb;
+ uint32_t wstat;
+ uint64_t comp[MCT_GT_CMP_NUM];
+ uint32_t comp_add_incr[MCT_GT_CMP_NUM];
+ } reg;
+
+ uint64_t count; /* Value FRC was armed with */
+ int32_t curr_comp; /* Current comparator FRC is running to */
+
+ ptimer_state *ptimer_frc; /* FRC timer */
+
+} exynos4210_mct_gt;
+
+/* local timer */
+typedef struct {
+ int id; /* timer id */
+ qemu_irq irq; /* local timer irq */
+
+ struct tick_timer {
+ uint32_t cnt_run; /* cnt timer is running */
+ uint32_t int_run; /* int timer is running */
+
+ uint32_t last_icnto;
+ uint32_t last_tcnto;
+ uint32_t tcntb; /* initial value for TCNTB */
+ uint32_t icntb; /* initial value for ICNTB */
+
+ /* for step mode */
+ uint64_t distance; /* distance to count to the next event */
+ uint64_t progress; /* progress when counting by steps */
+ uint64_t count; /* count to arm timer with */
+
+ ptimer_state *ptimer_tick; /* timer for tick counter */
+ } tick_timer;
+
+ /* use ptimer.c to represent count down timer */
+
+ ptimer_state *ptimer_frc; /* timer for free running counter */
+
+ /* registers */
+ struct lregs {
+ uint32_t cnt[L_REG_CNT_AMOUNT];
+ uint32_t tcon;
+ uint32_t int_cstat;
+ uint32_t int_enb;
+ uint32_t wstat;
+ } reg;
+
+} exynos4210_mct_lt;
+
+
+
+typedef struct Exynos4210MCTState {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+
+ /* Registers */
+ uint32_t reg_mct_cfg;
+
+ exynos4210_mct_lt l_timer[2];
+ exynos4210_mct_gt g_timer;
+
+ uint32_t freq; /* all timers tick frequency, TCLK */
+} Exynos4210MCTState;
+
+/*** VMState ***/
+static const VMStateDescription VMState_tick_timer = {
+ .name = "exynos4210.mct.tick_timer",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(cnt_run, struct tick_timer),
+ VMSTATE_UINT32(int_run, struct tick_timer),
+ VMSTATE_UINT32(last_icnto, struct tick_timer),
+ VMSTATE_UINT32(last_tcnto, struct tick_timer),
+ VMSTATE_UINT32(tcntb, struct tick_timer),
+ VMSTATE_UINT32(icntb, struct tick_timer),
+ VMSTATE_UINT64(distance, struct tick_timer),
+ VMSTATE_UINT64(progress, struct tick_timer),
+ VMSTATE_UINT64(count, struct tick_timer),
+ VMSTATE_PTIMER(ptimer_tick, struct tick_timer),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription VMState_lregs = {
+ .name = "exynos4210.mct.lregs",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(cnt, struct lregs, L_REG_CNT_AMOUNT),
+ VMSTATE_UINT32(tcon, struct lregs),
+ VMSTATE_UINT32(int_cstat, struct lregs),
+ VMSTATE_UINT32(int_enb, struct lregs),
+ VMSTATE_UINT32(wstat, struct lregs),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription VMState_Exynos4210_mct_lt = {
+ .name = "exynos4210.mct.lt",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT32(id, exynos4210_mct_lt),
+ VMSTATE_STRUCT(tick_timer, exynos4210_mct_lt, 0,
+ VMState_tick_timer,
+ struct tick_timer),
+ VMSTATE_PTIMER(ptimer_frc, exynos4210_mct_lt),
+ VMSTATE_STRUCT(reg, exynos4210_mct_lt, 0,
+ VMState_lregs,
+ struct lregs),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription VMState_gregs = {
+ .name = "exynos4210.mct.lregs",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(cnt, struct gregs),
+ VMSTATE_UINT32(cnt_wstat, struct gregs),
+ VMSTATE_UINT32(tcon, struct gregs),
+ VMSTATE_UINT32(int_cstat, struct gregs),
+ VMSTATE_UINT32(int_enb, struct gregs),
+ VMSTATE_UINT32(wstat, struct gregs),
+ VMSTATE_UINT64_ARRAY(comp, struct gregs, MCT_GT_CMP_NUM),
+ VMSTATE_UINT32_ARRAY(comp_add_incr, struct gregs,
+ MCT_GT_CMP_NUM),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription VMState_Exynos4210_mct_gt = {
+ .name = "exynos4210.mct.lt",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT(reg, exynos4210_mct_gt, 0, VMState_gregs,
+ struct gregs),
+ VMSTATE_UINT64(count, exynos4210_mct_gt),
+ VMSTATE_INT32(curr_comp, exynos4210_mct_gt),
+ VMSTATE_PTIMER(ptimer_frc, exynos4210_mct_gt),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription VMState_Exynos4210MCTState = {
+ .name = "exynos4210.mct",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(reg_mct_cfg, Exynos4210MCTState),
+ VMSTATE_STRUCT_ARRAY(l_timer, Exynos4210MCTState, 2, 0,
+ VMState_Exynos4210_mct_lt, exynos4210_mct_lt),
+ VMSTATE_STRUCT(g_timer, Exynos4210MCTState, 0,
+ VMState_Exynos4210_mct_gt, exynos4210_mct_gt),
+ VMSTATE_UINT32(freq, Exynos4210MCTState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void exynos4210_mct_update_freq(Exynos4210MCTState *s);
+
+/*
+ * Set counter of FRC global timer.
+ */
+static void exynos4210_gfrc_set_count(exynos4210_mct_gt *s, uint64_t count)
+{
+ s->count = count;
+ DPRINTF("global timer frc set count 0x%llx\n", count);
+ ptimer_set_count(s->ptimer_frc, count);
+}
+
+/*
+ * Get counter of FRC global timer.
+ */
+static uint64_t exynos4210_gfrc_get_count(exynos4210_mct_gt *s)
+{
+ uint64_t count = 0;
+ count = ptimer_get_count(s->ptimer_frc);
+ if (!count) {
+ /* Timer event was generated and s->reg.cnt holds adequate value */
+ return s->reg.cnt;
+ }
+ count = s->count - count;
+ return s->reg.cnt + count;
+}
+
+/*
+ * Stop global FRC timer
+ */
+static void exynos4210_gfrc_stop(exynos4210_mct_gt *s)
+{
+ DPRINTF("global timer frc stop\n");
+
+ ptimer_stop(s->ptimer_frc);
+}
+
+/*
+ * Start global FRC timer
+ */
+static void exynos4210_gfrc_start(exynos4210_mct_gt *s)
+{
+ DPRINTF("global timer frc start\n");
+
+ ptimer_run(s->ptimer_frc, 1);
+}
+
+/*
+ * Find next nearest Comparator. If current Comparator value equals to other
+ * Comparator value, skip them both
+ */
+static int32_t exynos4210_gcomp_find(Exynos4210MCTState *s)
+{
+ int res;
+ int i;
+ int enabled;
+ uint64_t min;
+ int min_comp_i;
+ uint64_t gfrc;
+ uint64_t distance;
+ uint64_t distance_min;
+ int comp_i;
+
+ /* get gfrc count */
+ gfrc = exynos4210_gfrc_get_count(&s->g_timer);
+
+ min = 0xFFFFFFFFFFFFFFFF;
+ distance_min = 0xFFFFFFFFFFFFFFFF;
+ comp_i = MCT_GT_CMP_NUM;
+ min_comp_i = MCT_GT_CMP_NUM;
+ enabled = 0;
+
+ /* lookup for nearest comparator */
+ for (i = 0; i < MCT_GT_CMP_NUM; i++) {
+
+ if (s->g_timer.reg.tcon & G_TCON_COMP_ENABLE(i)) {
+
+ enabled = 1;
+
+ if (s->g_timer.reg.comp[i] > gfrc) {
+ /* Comparator is upper then FRC */
+ distance = s->g_timer.reg.comp[i] - gfrc;
+
+ if (distance <= distance_min) {
+ distance_min = distance;
+ comp_i = i;
+ }
+ } else {
+ /* Comparator is below FRC, find the smallest */
+
+ if (s->g_timer.reg.comp[i] <= min) {
+ min = s->g_timer.reg.comp[i];
+ min_comp_i = i;
+ }
+ }
+ }
+ }
+
+ if (!enabled) {
+ /* All Comparators disabled */
+ res = -1;
+ } else if (comp_i < MCT_GT_CMP_NUM) {
+ /* Found upper Comparator */
+ res = comp_i;
+ } else {
+ /* All Comparators are below or equal to FRC */
+ res = min_comp_i;
+ }
+
+ DPRINTF("found comparator %d: comp 0x%llx distance 0x%llx, gfrc 0x%llx\n",
+ res,
+ s->g_timer.reg.comp[res],
+ distance_min,
+ gfrc);
+
+ return res;
+}
+
+/*
+ * Get distance to nearest Comparator
+ */
+static uint64_t exynos4210_gcomp_get_distance(Exynos4210MCTState *s, int32_t id)
+{
+ if (id == -1) {
+ /* no enabled Comparators, choose max distance */
+ return MCT_GT_COUNTER_STEP;
+ }
+ if (s->g_timer.reg.comp[id] - s->g_timer.reg.cnt < MCT_GT_COUNTER_STEP) {
+ return s->g_timer.reg.comp[id] - s->g_timer.reg.cnt;
+ } else {
+ return MCT_GT_COUNTER_STEP;
+ }
+}
+
+/*
+ * Restart global FRC timer
+ */
+static void exynos4210_gfrc_restart(Exynos4210MCTState *s)
+{
+ uint64_t distance;
+
+ exynos4210_gfrc_stop(&s->g_timer);
+
+ s->g_timer.curr_comp = exynos4210_gcomp_find(s);
+
+ distance = exynos4210_gcomp_get_distance(s, s->g_timer.curr_comp);
+
+ if (distance > MCT_GT_COUNTER_STEP || !distance) {
+ distance = MCT_GT_COUNTER_STEP;
+ }
+
+ exynos4210_gfrc_set_count(&s->g_timer, distance);
+ exynos4210_gfrc_start(&s->g_timer);
+}
+
+/*
+ * Raise global timer CMP IRQ
+ */
+static void exynos4210_gcomp_raise_irq(void *opaque, uint32_t id)
+{
+ exynos4210_mct_gt *s = opaque;
+
+ /* If CSTAT is pending and IRQ is enabled */
+ if ((s->reg.int_cstat & G_INT_CSTAT_COMP(id)) &&
+ (s->reg.int_enb & G_INT_ENABLE(id))) {
+ DPRINTF("gcmp timer[%d] IRQ\n", id);
+ qemu_irq_raise(s->irq[id]);
+ }
+}
+
+/*
+ * Lower global timer CMP IRQ
+ */
+static void exynos4210_gcomp_lower_irq(void *opaque, uint32_t id)
+{
+ exynos4210_mct_gt *s = opaque;
+ qemu_irq_lower(s->irq[id]);
+}
+
+/*
+ * Global timer FRC event handler.
+ * Each event occurs when internal counter reaches counter + MCT_GT_COUNTER_STEP
+ * Every time we arm global FRC timer to count for MCT_GT_COUNTER_STEP value
+ */
+static void exynos4210_gfrc_event(void *opaque)
+{
+ Exynos4210MCTState *s = (Exynos4210MCTState *)opaque;
+ int i;
+ uint64_t distance;
+
+ DPRINTF("\n");
+
+ s->g_timer.reg.cnt += s->g_timer.count;
+
+ /* Process all comparators */
+ for (i = 0; i < MCT_GT_CMP_NUM; i++) {
+
+ if (s->g_timer.reg.cnt == s->g_timer.reg.comp[i]) {
+ /* reached nearest comparator */
+
+ s->g_timer.reg.int_cstat |= G_INT_CSTAT_COMP(i);
+
+ /* Auto increment */
+ if (s->g_timer.reg.tcon & G_TCON_AUTO_ICREMENT(i)) {
+ s->g_timer.reg.comp[i] += s->g_timer.reg.comp_add_incr[i];
+ }
+
+ /* IRQ */
+ exynos4210_gcomp_raise_irq(&s->g_timer, i);
+ }
+ }
+
+ /* Reload FRC to reach nearest comparator */
+ s->g_timer.curr_comp = exynos4210_gcomp_find(s);
+ distance = exynos4210_gcomp_get_distance(s, s->g_timer.curr_comp);
+ if (distance > MCT_GT_COUNTER_STEP) {
+ distance = MCT_GT_COUNTER_STEP;
+ }
+ exynos4210_gfrc_set_count(&s->g_timer, distance);
+
+ exynos4210_gfrc_start(&s->g_timer);
+
+ return;
+}
+
+/*
+ * Get counter of FRC local timer.
+ */
+static uint64_t exynos4210_lfrc_get_count(exynos4210_mct_lt *s)
+{
+ return ptimer_get_count(s->ptimer_frc);
+}
+
+/*
+ * Set counter of FRC local timer.
+ */
+static void exynos4210_lfrc_update_count(exynos4210_mct_lt *s)
+{
+ if (!s->reg.cnt[L_REG_CNT_FRCCNTB]) {
+ ptimer_set_count(s->ptimer_frc, MCT_LT_COUNTER_STEP);
+ } else {
+ ptimer_set_count(s->ptimer_frc, s->reg.cnt[L_REG_CNT_FRCCNTB]);
+ }
+}
+
+/*
+ * Start local FRC timer
+ */
+static void exynos4210_lfrc_start(exynos4210_mct_lt *s)
+{
+ ptimer_run(s->ptimer_frc, 1);
+}
+
+/*
+ * Stop local FRC timer
+ */
+static void exynos4210_lfrc_stop(exynos4210_mct_lt *s)
+{
+ ptimer_stop(s->ptimer_frc);
+}
+
+/*
+ * Local timer free running counter tick handler
+ */
+static void exynos4210_lfrc_event(void *opaque)
+{
+ exynos4210_mct_lt * s = (exynos4210_mct_lt *)opaque;
+
+ /* local frc expired */
+
+ DPRINTF("\n");
+
+ s->reg.int_cstat |= L_INT_CSTAT_FRCCNT;
+
+ /* update frc counter */
+ exynos4210_lfrc_update_count(s);
+
+ /* raise irq */
+ if (s->reg.int_enb & L_INT_INTENB_FRCEIE) {
+ qemu_irq_raise(s->irq);
+ }
+
+ /* we reached here, this means that timer is enabled */
+ exynos4210_lfrc_start(s);
+}
+
+
+static uint32_t exynos4210_ltick_int_get_cnto(struct tick_timer *s);
+static void exynos4210_ltick_cnt_start(struct tick_timer *s);
+static void exynos4210_ltick_cnt_stop(struct tick_timer *s);
+static uint32_t exynos4210_ltick_cnt_get_cnto(struct tick_timer *s);
+static void exynos4210_ltick_recalc_count(struct tick_timer *s);
+
+
+
+/*
+ * Action on enabling local tick int timer
+ */
+static void exynos4210_ltick_int_start(struct tick_timer *s)
+{
+ if (!s->int_run) {
+ s->int_run = 1;
+ }
+}
+
+/*
+ * Action on disabling local tick int timer
+ */
+static void exynos4210_ltick_int_stop(struct tick_timer *s)
+{
+ if (s->int_run) {
+ s->last_icnto = exynos4210_ltick_int_get_cnto(s);
+ s->int_run = 0;
+ }
+}
+
+/*
+ * Get count for INT timer
+ */
+static uint32_t exynos4210_ltick_int_get_cnto(struct tick_timer *s)
+{
+ uint32_t icnto;
+ uint64_t remain;
+ uint64_t count;
+ uint64_t counted;
+ uint64_t cur_progress;
+
+ count = ptimer_get_count(s->ptimer_tick);
+ if (count) {
+ /* timer is still counting, called not from event */
+ counted = s->count - ptimer_get_count(s->ptimer_tick);
+ cur_progress = s->progress + counted;
+ } else {
+ /* timer expired earlier */
+ cur_progress = s->progress;
+ }
+
+ remain = s->distance - cur_progress;
+
+ if (!s->int_run) {
+ /* INT is stopped. */
+ icnto = s->last_icnto;
+ } else {
+ /* Both are counting */
+ icnto = remain / s->tcntb;
+ }
+
+ return icnto;
+}
+
+/*
+ * Start local tick cnt timer.
+ */
+static void exynos4210_ltick_cnt_start(struct tick_timer *s)
+{
+ if (!s->cnt_run) {
+
+ exynos4210_ltick_recalc_count(s);
+ ptimer_set_count(s->ptimer_tick, s->count);
+ ptimer_run(s->ptimer_tick, 1);
+
+ s->cnt_run = 1;
+ }
+}
+
+/*
+ * Stop local tick cnt timer.
+ */
+static void exynos4210_ltick_cnt_stop(struct tick_timer *s)
+{
+ if (s->cnt_run) {
+
+ s->last_tcnto = exynos4210_ltick_cnt_get_cnto(s);
+
+ if (s->int_run) {
+ exynos4210_ltick_int_stop(s);
+ }
+
+ ptimer_stop(s->ptimer_tick);
+
+ s->cnt_run = 0;
+ }
+}
+
+/*
+ * Get counter for CNT timer
+ */
+static uint32_t exynos4210_ltick_cnt_get_cnto(struct tick_timer *s)
+{
+ uint32_t tcnto;
+ uint32_t icnto;
+ uint64_t remain;
+ uint64_t counted;
+ uint64_t count;
+ uint64_t cur_progress;
+
+ count = ptimer_get_count(s->ptimer_tick);
+ if (count) {
+ /* timer is still counting, called not from event */
+ counted = s->count - ptimer_get_count(s->ptimer_tick);
+ cur_progress = s->progress + counted;
+ } else {
+ /* timer expired earlier */
+ cur_progress = s->progress;
+ }
+
+ remain = s->distance - cur_progress;
+
+ if (!s->cnt_run) {
+ /* Both are stopped. */
+ tcnto = s->last_tcnto;
+ } else if (!s->int_run) {
+ /* INT counter is stopped, progress is by CNT timer */
+ tcnto = remain % s->tcntb;
+ } else {
+ /* Both are counting */
+ icnto = remain / s->tcntb;
+ if (icnto) {
+ tcnto = remain % (icnto * s->tcntb);
+ } else {
+ tcnto = remain % s->tcntb;
+ }
+ }
+
+ return tcnto;
+}
+
+/*
+ * Set new values of counters for CNT and INT timers
+ */
+static void exynos4210_ltick_set_cntb(struct tick_timer *s, uint32_t new_cnt,
+ uint32_t new_int)
+{
+ uint32_t cnt_stopped = 0;
+ uint32_t int_stopped = 0;
+
+ if (s->cnt_run) {
+ exynos4210_ltick_cnt_stop(s);
+ cnt_stopped = 1;
+ }
+
+ if (s->int_run) {
+ exynos4210_ltick_int_stop(s);
+ int_stopped = 1;
+ }
+
+ s->tcntb = new_cnt + 1;
+ s->icntb = new_int + 1;
+
+ if (cnt_stopped) {
+ exynos4210_ltick_cnt_start(s);
+ }
+ if (int_stopped) {
+ exynos4210_ltick_int_start(s);
+ }
+
+}
+
+/*
+ * Calculate new counter value for tick timer
+ */
+static void exynos4210_ltick_recalc_count(struct tick_timer *s)
+{
+ uint64_t to_count;
+
+ if ((s->cnt_run && s->last_tcnto) || (s->int_run && s->last_icnto)) {
+ /*
+ * one or both timers run and not counted to the end;
+ * distance is not passed, recalculate with last_tcnto * last_icnto
+ */
+
+ if (s->last_tcnto) {
+ to_count = s->last_tcnto * s->last_icnto;
+ } else {
+ to_count = s->last_icnto;
+ }
+ } else {
+ /* distance is passed, recalculate with tcnto * icnto */
+ if (s->icntb) {
+ s->distance = s->tcntb * s->icntb;
+ } else {
+ s->distance = s->tcntb;
+ }
+
+ to_count = s->distance;
+ s->progress = 0;
+ }
+
+ if (to_count > MCT_LT_COUNTER_STEP) {
+ /* count by step */
+ s->count = MCT_LT_COUNTER_STEP;
+ } else {
+ s->count = to_count;
+ }
+}
+
+/*
+ * Initialize tick_timer
+ */
+static void exynos4210_ltick_timer_init(struct tick_timer *s)
+{
+ exynos4210_ltick_int_stop(s);
+ exynos4210_ltick_cnt_stop(s);
+
+ s->count = 0;
+ s->distance = 0;
+ s->progress = 0;
+ s->icntb = 0;
+ s->tcntb = 0;
+}
+
+/*
+ * tick_timer event.
+ * Raises when abstract tick_timer expires.
+ */
+static void exynos4210_ltick_timer_event(struct tick_timer *s)
+{
+ s->progress += s->count;
+}
+
+/*
+ * Local timer tick counter handler.
+ * Don't use reloaded timers. If timer counter = zero
+ * then handler called but after handler finished no
+ * timer reload occurs.
+ */
+static void exynos4210_ltick_event(void *opaque)
+{
+ exynos4210_mct_lt * s = (exynos4210_mct_lt *)opaque;
+ uint32_t tcnto;
+ uint32_t icnto;
+#ifdef DEBUG_MCT
+ static uint64_t time1[2] = {0};
+ static uint64_t time2[2] = {0};
+#endif
+
+ /* Call tick_timer event handler, it will update it's tcntb and icntb */
+ exynos4210_ltick_timer_event(&s->tick_timer);
+
+ /* get tick_timer cnt */
+ tcnto = exynos4210_ltick_cnt_get_cnto(&s->tick_timer);
+
+ /* get tick_timer int */
+ icnto = exynos4210_ltick_int_get_cnto(&s->tick_timer);
+
+ /* raise IRQ if needed */
+ if (!icnto && s->reg.tcon & L_TCON_INT_START) {
+ /* INT counter enabled and expired */
+
+ s->reg.int_cstat |= L_INT_CSTAT_INTCNT;
+
+ /* raise interrupt if enabled */
+ if (s->reg.int_enb & L_INT_INTENB_ICNTEIE) {
+#ifdef DEBUG_MCT
+ time2[s->id] = qemu_get_clock_ns(vm_clock);
+ DPRINTF("local timer[%d] IRQ: %llx\n", s->id,
+ time2[s->id] - time1[s->id]);
+ time1[s->id] = time2[s->id];
+#endif
+ qemu_irq_raise(s->irq);
+ }
+
+ /* reload ICNTB */
+ if (s->reg.tcon & L_TCON_INTERVAL_MODE) {
+ exynos4210_ltick_set_cntb(&s->tick_timer,
+ s->reg.cnt[L_REG_CNT_TCNTB],
+ s->reg.cnt[L_REG_CNT_ICNTB]);
+ }
+ } else {
+ /* reload TCNTB */
+ if (!tcnto) {
+ exynos4210_ltick_set_cntb(&s->tick_timer,
+ s->reg.cnt[L_REG_CNT_TCNTB],
+ icnto);
+ }
+ }
+
+ /* start tick_timer cnt */
+ exynos4210_ltick_cnt_start(&s->tick_timer);
+
+ /* start tick_timer int */
+ exynos4210_ltick_int_start(&s->tick_timer);
+}
+
+/* update timer frequency */
+static void exynos4210_mct_update_freq(Exynos4210MCTState *s)
+{
+ uint32_t freq = s->freq;
+ s->freq = 24000000 /
+ ((MCT_CFG_GET_PRESCALER(s->reg_mct_cfg)+1) *
+ MCT_CFG_GET_DIVIDER(s->reg_mct_cfg));
+
+ if (freq != s->freq) {
+ DPRINTF("freq=%dHz\n", s->freq);
+
+ /* global timer */
+ ptimer_set_freq(s->g_timer.ptimer_frc, s->freq);
+
+ /* local timer */
+ ptimer_set_freq(s->l_timer[0].tick_timer.ptimer_tick, s->freq);
+ ptimer_set_freq(s->l_timer[0].ptimer_frc, s->freq);
+ ptimer_set_freq(s->l_timer[1].tick_timer.ptimer_tick, s->freq);
+ ptimer_set_freq(s->l_timer[1].ptimer_frc, s->freq);
+ }
+}
+
+/* set defaul_timer values for all fields */
+static void exynos4210_mct_reset(DeviceState *d)
+{
+ Exynos4210MCTState *s = (Exynos4210MCTState *)d;
+ uint32_t i;
+
+ s->reg_mct_cfg = 0;
+
+ /* global timer */
+ memset(&s->g_timer.reg, 0, sizeof(s->g_timer.reg));
+ exynos4210_gfrc_stop(&s->g_timer);
+
+ /* local timer */
+ memset(s->l_timer[0].reg.cnt, 0, sizeof(s->l_timer[0].reg.cnt));
+ memset(s->l_timer[1].reg.cnt, 0, sizeof(s->l_timer[1].reg.cnt));
+ for (i = 0; i < 2; i++) {
+ s->l_timer[i].reg.int_cstat = 0;
+ s->l_timer[i].reg.int_enb = 0;
+ s->l_timer[i].reg.tcon = 0;
+ s->l_timer[i].reg.wstat = 0;
+ s->l_timer[i].tick_timer.count = 0;
+ s->l_timer[i].tick_timer.distance = 0;
+ s->l_timer[i].tick_timer.progress = 0;
+ ptimer_stop(s->l_timer[i].ptimer_frc);
+
+ exynos4210_ltick_timer_init(&s->l_timer[i].tick_timer);
+ }
+
+ exynos4210_mct_update_freq(s);
+
+}
+
+/* Multi Core Timer read */
+static uint64_t exynos4210_mct_read(void *opaque, target_phys_addr_t offset,
+ unsigned size)
+{
+ Exynos4210MCTState *s = (Exynos4210MCTState *)opaque;
+ int index;
+ int shift;
+ uint64_t count;
+ uint32_t value;
+ int lt_i;
+
+ switch (offset) {
+
+ case MCT_CFG:
+ value = s->reg_mct_cfg;
+ break;
+
+ case G_CNT_L: case G_CNT_U:
+ shift = 8 * (offset & 0x4);
+ count = exynos4210_gfrc_get_count(&s->g_timer);
+ value = 0xFFFFFFFF & (count >> shift);
+ DPRINTF("read FRC=0x%llx\n", count);
+ break;
+
+ case G_CNT_WSTAT:
+ value = s->g_timer.reg.cnt_wstat;
+ break;
+
+ case G_COMP_L(0): case G_COMP_L(1): case G_COMP_L(2): case G_COMP_L(3):
+ case G_COMP_U(0): case G_COMP_U(1): case G_COMP_U(2): case G_COMP_U(3):
+ index = GET_G_COMP_IDX(offset);
+ shift = 8 * (offset & 0x4);
+ value = 0xFFFFFFFF & (s->g_timer.reg.comp[index] >> shift);
+ break;
+
+ case G_TCON:
+ value = s->g_timer.reg.tcon;
+ break;
+
+ case G_INT_CSTAT:
+ value = s->g_timer.reg.int_cstat;
+ break;
+
+ case G_INT_ENB:
+ value = s->g_timer.reg.int_enb;
+ break;
+ break;
+ case G_WSTAT:
+ value = s->g_timer.reg.wstat;
+ break;
+
+ case G_COMP0_ADD_INCR: case G_COMP1_ADD_INCR:
+ case G_COMP2_ADD_INCR: case G_COMP3_ADD_INCR:
+ value = s->g_timer.reg.comp_add_incr[GET_G_COMP_ADD_INCR_IDX(offset)];
+ break;
+
+ /* Local timers */
+ case L0_TCNTB: case L0_ICNTB: case L0_FRCNTB:
+ case L1_TCNTB: case L1_ICNTB: case L1_FRCNTB:
+ lt_i = GET_L_TIMER_IDX(offset);
+ index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i);
+ value = s->l_timer[lt_i].reg.cnt[index];
+ break;
+
+ case L0_TCNTO: case L1_TCNTO:
+ lt_i = GET_L_TIMER_IDX(offset);
+
+ value = exynos4210_ltick_cnt_get_cnto(&s->l_timer[lt_i].tick_timer);
+ DPRINTF("local timer[%d] read TCNTO %x\n", lt_i, value);
+ break;
+
+ case L0_ICNTO: case L1_ICNTO:
+ lt_i = GET_L_TIMER_IDX(offset);
+
+ value = exynos4210_ltick_int_get_cnto(&s->l_timer[lt_i].tick_timer);
+ DPRINTF("local timer[%d] read ICNTO %x\n", lt_i, value);
+ break;
+
+ case L0_FRCNTO: case L1_FRCNTO:
+ lt_i = GET_L_TIMER_IDX(offset);
+
+ value = exynos4210_lfrc_get_count(&s->l_timer[lt_i]);
+
+ break;
+
+ case L0_TCON: case L1_TCON:
+ lt_i = ((offset&0xF00) - L0_TCNTB)/0x100;
+ value = s->l_timer[lt_i].reg.tcon;
+ break;
+
+ case L0_INT_CSTAT: case L1_INT_CSTAT:
+ lt_i = ((offset&0xF00) - L0_TCNTB)/0x100;
+ value = s->l_timer[lt_i].reg.int_cstat;
+ break;
+
+ case L0_INT_ENB: case L1_INT_ENB:
+ lt_i = ((offset&0xF00) - L0_TCNTB)/0x100;
+ value = s->l_timer[lt_i].reg.int_enb;
+ break;
+
+ case L0_WSTAT: case L1_WSTAT:
+ lt_i = ((offset&0xF00) - L0_TCNTB)/0x100;
+ value = s->l_timer[lt_i].reg.wstat;
+ break;
+
+ default:
+ hw_error("exynos4210.mct: bad read offset "
+ TARGET_FMT_plx "\n", offset);
+ break;
+ }
+ return value;
+}
+
+/* MCT write */
+static void exynos4210_mct_write(void *opaque, target_phys_addr_t offset,
+ uint64_t value, unsigned size)
+{
+ Exynos4210MCTState *s = (Exynos4210MCTState *)opaque;
+ int index; /* index in buffer which represents register set */
+ int shift;
+ int lt_i;
+ uint64_t new_frc;
+ uint32_t i;
+ uint32_t old_val;
+#ifdef DEBUG_MCT
+ static uint32_t icntb_max[2] = {0};
+ static uint32_t icntb_min[2] = {0xFFFFFFFF, 0xFFFFFFFF};
+ static uint32_t tcntb_max[2] = {0};
+ static uint32_t tcntb_min[2] = {0xFFFFFFFF, 0xFFFFFFFF};
+#endif
+
+ new_frc = s->g_timer.reg.cnt;
+
+ switch (offset) {
+
+ case MCT_CFG:
+ s->reg_mct_cfg = value;
+ exynos4210_mct_update_freq(s);
+ break;
+
+ case G_CNT_L:
+ case G_CNT_U:
+ if (offset == G_CNT_L) {
+
+ DPRINTF("global timer write to reg.cntl %llx\n", value);
+
+ new_frc = (s->g_timer.reg.cnt & 0xFFFFFFFF00000000) +
+ value;
+ s->g_timer.reg.cnt_wstat |= G_CNT_WSTAT_L;
+ }
+ if (offset == G_CNT_U) {
+
+ DPRINTF("global timer write to reg.cntu %llx\n", value);
+
+ new_frc = (s->g_timer.reg.cnt & 0xFFFFFFFF) +
+ ((uint64_t)value<<32);
+ s->g_timer.reg.cnt_wstat |= G_CNT_WSTAT_U;
+ }
+
+ s->g_timer.reg.cnt = new_frc;
+ exynos4210_gfrc_restart(s);
+ break;
+
+ case G_CNT_WSTAT:
+ s->g_timer.reg.cnt_wstat &= ~(value);
+ break;
+
+ case G_COMP_L(0): case G_COMP_L(1): case G_COMP_L(2): case G_COMP_L(3):
+ case G_COMP_U(0): case G_COMP_U(1): case G_COMP_U(2): case G_COMP_U(3):
+ index = GET_G_COMP_IDX(offset);
+ shift = 8*(offset&0x4);
+ s->g_timer.reg.comp[index] =
+ (s->g_timer.reg.comp[index] & (0xFFFFFFFF00000000>>shift)) +
+ (value<<shift);
+
+ DPRINTF("comparator %d write 0x%llx val << %d\n", index, value, shift);
+
+ if (offset&0x4) {
+ s->g_timer.reg.wstat |= G_WSTAT_COMP_U(index);
+ } else {
+ s->g_timer.reg.wstat |= G_WSTAT_COMP_L(index);
+ }
+
+ exynos4210_gfrc_restart(s);
+ break;
+
+ case G_TCON:
+ old_val = s->g_timer.reg.tcon;
+ s->g_timer.reg.tcon = value;
+ s->g_timer.reg.wstat |= G_WSTAT_TCON_WRITE;
+
+ DPRINTF("global timer write to reg.g_tcon %llx\n", value);
+
+ /* Start FRC if transition from disabled to enabled */
+ if ((value & G_TCON_TIMER_ENABLE) > (old_val &
+ G_TCON_TIMER_ENABLE)) {
+ exynos4210_gfrc_start(&s->g_timer);
+ }
+ if ((value & G_TCON_TIMER_ENABLE) < (old_val &
+ G_TCON_TIMER_ENABLE)) {
+ exynos4210_gfrc_stop(&s->g_timer);
+ }
+
+ /* Start CMP if transition from disabled to enabled */
+ for (i = 0; i < MCT_GT_CMP_NUM; i++) {
+ if ((value & G_TCON_COMP_ENABLE(i)) != (old_val &
+ G_TCON_COMP_ENABLE(i))) {
+ exynos4210_gfrc_restart(s);
+ }
+ }
+ break;
+
+ case G_INT_CSTAT:
+ s->g_timer.reg.int_cstat &= ~(value);
+ for (i = 0; i < MCT_GT_CMP_NUM; i++) {
+ if (value & G_INT_CSTAT_COMP(i)) {
+ exynos4210_gcomp_lower_irq(&s->g_timer, i);
+ }
+ }
+ break;
+
+ case G_INT_ENB:
+
+ /* Raise IRQ if transition from disabled to enabled and CSTAT pending */
+ for (i = 0; i < MCT_GT_CMP_NUM; i++) {
+ if ((value & G_INT_ENABLE(i)) > (s->g_timer.reg.tcon &
+ G_INT_ENABLE(i))) {
+ if (s->g_timer.reg.int_cstat & G_INT_CSTAT_COMP(i)) {
+ exynos4210_gcomp_raise_irq(&s->g_timer, i);
+ }
+ }
+
+ if ((value & G_INT_ENABLE(i)) < (s->g_timer.reg.tcon &
+ G_INT_ENABLE(i))) {
+ exynos4210_gcomp_lower_irq(&s->g_timer, i);
+ }
+ }
+
+ DPRINTF("global timer INT enable %llx\n", value);
+ s->g_timer.reg.int_enb = value;
+ break;
+
+ case G_WSTAT:
+ s->g_timer.reg.wstat &= ~(value);
+ break;
+
+ case G_COMP0_ADD_INCR: case G_COMP1_ADD_INCR:
+ case G_COMP2_ADD_INCR: case G_COMP3_ADD_INCR:
+ index = GET_G_COMP_ADD_INCR_IDX(offset);
+ s->g_timer.reg.comp_add_incr[index] = value;
+ s->g_timer.reg.wstat |= G_WSTAT_COMP_ADDINCR(index);
+ break;
+
+ /* Local timers */
+ case L0_TCON: case L1_TCON:
+ lt_i = GET_L_TIMER_IDX(offset);
+ old_val = s->l_timer[lt_i].reg.tcon;
+
+ s->l_timer[lt_i].reg.wstat |= L_WSTAT_TCON_WRITE;
+ s->l_timer[lt_i].reg.tcon = value;
+
+ /* Stop local CNT */
+ if ((value & L_TCON_TICK_START) <
+ (old_val & L_TCON_TICK_START)) {
+ DPRINTF("local timer[%d] stop cnt\n", lt_i);
+ exynos4210_ltick_cnt_stop(&s->l_timer[lt_i].tick_timer);
+ }
+
+ /* Stop local INT */
+ if ((value & L_TCON_INT_START) <
+ (old_val & L_TCON_INT_START)) {
+ DPRINTF("local timer[%d] stop int\n", lt_i);
+ exynos4210_ltick_int_stop(&s->l_timer[lt_i].tick_timer);
+ }
+
+ /* Start local CNT */
+ if ((value & L_TCON_TICK_START) >
+ (old_val & L_TCON_TICK_START)) {
+ DPRINTF("local timer[%d] start cnt\n", lt_i);
+ exynos4210_ltick_cnt_start(&s->l_timer[lt_i].tick_timer);
+ }
+
+ /* Start local INT */
+ if ((value & L_TCON_INT_START) >
+ (old_val & L_TCON_INT_START)) {
+ DPRINTF("local timer[%d] start int\n", lt_i);
+ exynos4210_ltick_int_start(&s->l_timer[lt_i].tick_timer);
+ }
+
+ /* Start or Stop local FRC if TCON changed */
+ if ((value & L_TCON_FRC_START) >
+ (s->l_timer[lt_i].reg.tcon & L_TCON_FRC_START)) {
+ DPRINTF("local timer[%d] start frc\n", lt_i);
+ exynos4210_lfrc_start(&s->l_timer[lt_i]);
+ }
+ if ((value & L_TCON_FRC_START) <
+ (s->l_timer[lt_i].reg.tcon & L_TCON_FRC_START)) {
+ DPRINTF("local timer[%d] stop frc\n", lt_i);
+ exynos4210_lfrc_stop(&s->l_timer[lt_i]);
+ }
+ break;
+
+ case L0_TCNTB: case L1_TCNTB:
+
+ lt_i = GET_L_TIMER_IDX(offset);
+ index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i);
+
+ /*
+ * TCNTB is updated to internal register only after CNT expired.
+ * Due to this we should reload timer to nearest moment when CNT is
+ * expired and then in event handler update tcntb to new TCNTB value.
+ */
+ exynos4210_ltick_set_cntb(&s->l_timer[lt_i].tick_timer, value,
+ s->l_timer[lt_i].tick_timer.icntb);
+
+ s->l_timer[lt_i].reg.wstat |= L_WSTAT_TCNTB_WRITE;
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_TCNTB] = value;
+
+#ifdef DEBUG_MCT
+ if (tcntb_min[lt_i] > value) {
+ tcntb_min[lt_i] = value;
+ }
+ if (tcntb_max[lt_i] < value) {
+ tcntb_max[lt_i] = value;
+ }
+ DPRINTF("local timer[%d] TCNTB write %llx; max=%x, min=%x\n",
+ lt_i, value, tcntb_max[lt_i], tcntb_min[lt_i]);
+#endif
+ break;
+
+ case L0_ICNTB: case L1_ICNTB:
+
+ lt_i = GET_L_TIMER_IDX(offset);
+ index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i);
+
+ s->l_timer[lt_i].reg.wstat |= L_WSTAT_ICNTB_WRITE;
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_ICNTB] = value &
+ ~L_ICNTB_MANUAL_UPDATE;
+
+ /*
+ * FIXME: this stub should be removed
+ * We need to avoid too small values for TCNTB*ICNTB. If not, IRQ event
+ * could raise too fast disallowing QEMU to execute target code.
+ * One way is to use -icount option, but in that case target 1 second
+ * could turn in host 100 seconds which leads to enormous sleep(n)
+ * awaiting. So let just enlarge small values of TCNTB*ICNTB to avoid
+ * too fast IRQs.
+ */
+ if (s->l_timer[lt_i].reg.cnt[L_REG_CNT_ICNTB] *
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_TCNTB] < MCT_LT_CNT_LOW_LIMIT) {
+ if (!s->l_timer[lt_i].reg.cnt[L_REG_CNT_TCNTB]) {
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_ICNTB] =
+ MCT_LT_CNT_LOW_LIMIT;
+ } else {
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_ICNTB] =
+ MCT_LT_CNT_LOW_LIMIT /
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_TCNTB];
+ }
+ }
+
+
+ if (value & L_ICNTB_MANUAL_UPDATE) {
+ exynos4210_ltick_set_cntb(&s->l_timer[lt_i].tick_timer,
+ s->l_timer[lt_i].tick_timer.tcntb,
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_ICNTB]);
+ }
+
+#ifdef DEBUG_MCT
+ if (icntb_min[lt_i] > value) {
+ icntb_min[lt_i] = value;
+ }
+ if (icntb_max[lt_i] < value) {
+ icntb_max[lt_i] = value;
+ }
+DPRINTF("local timer[%d] ICNTB write %llx; max=%x, min=%x\n\n",
+ lt_i, value, icntb_max[lt_i], icntb_min[lt_i]);
+#endif
+break;
+
+ case L0_FRCNTB: case L1_FRCNTB:
+
+ lt_i = GET_L_TIMER_IDX(offset);
+ index = GET_L_TIMER_CNT_REG_IDX(offset, lt_i);
+
+ DPRINTF("local timer[%d] FRCNTB write %llx\n", lt_i, value);
+
+ s->l_timer[lt_i].reg.wstat |= L_WSTAT_FRCCNTB_WRITE;
+ s->l_timer[lt_i].reg.cnt[L_REG_CNT_FRCCNTB] = value;
+
+ break;
+
+ case L0_TCNTO: case L1_TCNTO:
+ case L0_ICNTO: case L1_ICNTO:
+ case L0_FRCNTO: case L1_FRCNTO:
+ fprintf(stderr, "\n[exynos4210.mct: write to RO register "
+ TARGET_FMT_plx "]\n\n", offset);
+ break;
+
+ case L0_INT_CSTAT: case L1_INT_CSTAT:
+ lt_i = GET_L_TIMER_IDX(offset);
+
+ DPRINTF("local timer[%d] CSTAT write %llx\n", lt_i, value);
+
+ s->l_timer[lt_i].reg.int_cstat &= ~value;
+ if (!s->l_timer[lt_i].reg.int_cstat) {
+ qemu_irq_lower(s->l_timer[lt_i].irq);
+ }
+ break;
+
+ case L0_INT_ENB: case L1_INT_ENB:
+ lt_i = GET_L_TIMER_IDX(offset);
+ old_val = s->l_timer[lt_i].reg.int_enb;
+
+ /* Raise Local timer IRQ if cstat is pending */
+ if ((value & L_INT_INTENB_ICNTEIE) > (old_val & L_INT_INTENB_ICNTEIE)) {
+ if (s->l_timer[lt_i].reg.int_cstat & L_INT_CSTAT_INTCNT) {
+ qemu_irq_raise(s->l_timer[lt_i].irq);
+ }
+ }
+
+ s->l_timer[lt_i].reg.int_enb = value;
+
+ break;
+
+ case L0_WSTAT: case L1_WSTAT:
+ lt_i = GET_L_TIMER_IDX(offset);
+
+ s->l_timer[lt_i].reg.wstat &= ~value;
+ break;
+
+ default:
+ hw_error("exynos4210.mct: bad write offset "
+ TARGET_FMT_plx "\n", offset);
+ break;
+ }
+}
+
+static const MemoryRegionOps exynos4210_mct_ops = {
+ .read = exynos4210_mct_read,
+ .write = exynos4210_mct_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+/* MCT init */
+static int exynos4210_mct_init(SysBusDevice *dev)
+{
+ int i;
+ Exynos4210MCTState *s = FROM_SYSBUS(Exynos4210MCTState, dev);
+ QEMUBH * bh[2];
+
+ /* Global timer */
+ bh[0] = qemu_bh_new(exynos4210_gfrc_event, s);
+ s->g_timer.ptimer_frc = ptimer_init(bh[0]);
+ memset(&s->g_timer.reg, 0, sizeof(struct gregs));
+
+ /* Local timers */
+ for (i = 0; i < 2; i++) {
+ bh[0] = qemu_bh_new(exynos4210_ltick_event, &s->l_timer[i]);
+ bh[1] = qemu_bh_new(exynos4210_lfrc_event, &s->l_timer[i]);
+ s->l_timer[i].tick_timer.ptimer_tick = ptimer_init(bh[0]);
+ s->l_timer[i].ptimer_frc = ptimer_init(bh[1]);
+ s->l_timer[i].id = i;
+ }
+
+ /* IRQs */
+ for (i = 0; i < MCT_GT_CMP_NUM; i++) {
+ sysbus_init_irq(dev, &s->g_timer.irq[i]);
+ }
+ for (i = 0; i < 2; i++) {
+ sysbus_init_irq(dev, &s->l_timer[i].irq);
+ }
+
+ memory_region_init_io(&s->iomem, &exynos4210_mct_ops, s, "exynos4210-mct",
+ MCT_SFR_SIZE);
+ sysbus_init_mmio(dev, &s->iomem);
+
+ return 0;
+}
+
+static SysBusDeviceInfo exynos4210_mct_info = {
+ .qdev.name = "exynos4210.mct",
+ .qdev.size = sizeof(struct Exynos4210MCTState),
+ .qdev.reset = exynos4210_mct_reset,
+ .qdev.vmsd = &VMState_Exynos4210MCTState,
+ .init = exynos4210_mct_init,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_END_OF_LIST(),
+ }
+};
+
+static void exynos4210_mct_register_devices(void)
+{
+ sysbus_register_withprop(&exynos4210_mct_info);
+}
+
+device_init(exynos4210_mct_register_devices)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 07/11] ARM: exynos4210: MCT support.
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 07/11] ARM: exynos4210: MCT support Evgeny Voevodin
@ 2012-01-10 16:13 ` Peter Maydell
0 siblings, 0 replies; 25+ messages in thread
From: Peter Maydell @ 2012-01-10 16:13 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
> +#define MCT_CFG_GET_PRESCALER(x) (x&0xFF)
> +#define MCT_CFG_GET_DIVIDER(x) (1<<(x>>8 & 7))
The macros in this file have the same bracket and spacing issues
as for the other patch.
> + case L0_TCON: case L1_TCON:
> + lt_i = ((offset&0xF00) - L0_TCNTB)/0x100;
More spaces in this kind of expression would be nice.
> +static SysBusDeviceInfo exynos4210_mct_info = {
> + .qdev.name = "exynos4210.mct",
> + .qdev.size = sizeof(struct Exynos4210MCTState),
> + .qdev.reset = exynos4210_mct_reset,
> + .qdev.vmsd = &VMState_Exynos4210MCTState,
> + .init = exynos4210_mct_init,
> + .qdev.props = (Property[]) {
> + DEFINE_PROP_END_OF_LIST(),
> + }
> +};
Unnecessary empty property list again.
Otherwise looks OK.
-- PMM
^ permalink raw reply [flat|nested] 25+ messages in thread
* [Qemu-devel] [PATCH v5 08/11] hw/exynos4210.c: Boot secondary CPU.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (6 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 07/11] ARM: exynos4210: MCT support Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 16:16 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 09/11] hw/lan9118: Add basic 16-bit mode support Evgeny Voevodin
` (2 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
hw/exynos4210.c | 14 ++++++++++++++
hw/exynos4210.h | 7 ++++++-
hw/exynos4_boards.c | 9 +++++++++
3 files changed, 29 insertions(+), 1 deletions(-)
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
index f958980..badeacf 100644
--- a/hw/exynos4210.c
+++ b/hw/exynos4210.c
@@ -283,6 +283,20 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
memory_region_add_subregion(system_mem, EXYNOS4210_DRAM0_BASE_ADDR,
&s->dram0_mem);
+ /*
+ * Secondary CPU startup code will be placed here.
+ */
+ memory_region_init_ram(&s->hack_mem, NULL, "exynos4210.hack", 0x1000);
+ memory_region_add_subregion(system_mem, EXYNOS4210_SMP_BOOT_ADDR,
+ &s->hack_mem);
+
+ /*
+ * Hack: Map SECOND_CPU_BOOTREG, because it is in PMU USER5 register.
+ */
+ memory_region_init_ram(&s->bootreg_mem, NULL, "exynos4210.bootreg", 0x4);
+ memory_region_add_subregion(system_mem, EXYNOS4210_SECOND_CPU_BOOTREG,
+ &s->bootreg_mem);
+
/* PWM */
sysbus_create_varargs("exynos4210.pwm", EXYNOS4210_PWM_BASE_ADDR,
irq_table[exynos4210_get_irq(22, 0)],
diff --git a/hw/exynos4210.h b/hw/exynos4210.h
index b55d159..974d4c3 100644
--- a/hw/exynos4210.h
+++ b/hw/exynos4210.h
@@ -43,7 +43,11 @@
#define EXYNOS4210_IRAM_BASE_ADDR 0x02020000
#define EXYNOS4210_IRAM_SIZE 0x00020000 /* 128 KB */
+/* Secondary CPU startup code is in IROM memory */
+#define EXYNOS4210_SMP_BOOT_ADDR EXYNOS4210_IROM_BASE_ADDR
#define EXYNOS4210_BASE_BOOT_ADDR EXYNOS4210_DRAM0_BASE_ADDR
+/* Secondary CPU polling address to get loader start from */
+#define EXYNOS4210_SECOND_CPU_BOOTREG 0x10020814
#define EXYNOS4210_SMP_PRIVATE_BASE_ADDR 0x10500000
@@ -87,7 +91,8 @@ typedef struct Exynos4210State {
MemoryRegion irom_alias_mem;
MemoryRegion dram0_mem;
MemoryRegion dram1_mem;
-
+ MemoryRegion hack_mem;
+ MemoryRegion bootreg_mem;
} Exynos4210State;
Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
diff --git a/hw/exynos4_boards.c b/hw/exynos4_boards.c
index b710b06..5410a6f 100644
--- a/hw/exynos4_boards.c
+++ b/hw/exynos4_boards.c
@@ -52,6 +52,11 @@ static int exynos4_board_id[EXYNOS4_NUM_OF_BOARDS] = {
[EXYNOS4_BOARD_SMDKC210] = 0xB16,
};
+static int exynos4_board_smp_bootreg_addr[EXYNOS4_NUM_OF_BOARDS] = {
+ [EXYNOS4_BOARD_NURI] = EXYNOS4210_SECOND_CPU_BOOTREG,
+ [EXYNOS4_BOARD_SMDKC210] = EXYNOS4210_SECOND_CPU_BOOTREG,
+};
+
static unsigned long exynos4_board_ram_size[EXYNOS4_NUM_OF_BOARDS] = {
[EXYNOS4_BOARD_NURI] = 0x40000000,
[EXYNOS4_BOARD_SMDKC210] = 0x40000000,
@@ -59,6 +64,7 @@ static unsigned long exynos4_board_ram_size[EXYNOS4_NUM_OF_BOARDS] = {
static struct arm_boot_info exynos4_board_binfo = {
.loader_start = EXYNOS4210_BASE_BOOT_ADDR,
+ .smp_loader_start = EXYNOS4210_SMP_BOOT_ADDR,
};
static Exynos4210State *exynos4_boards_init_common(
@@ -69,10 +75,13 @@ static Exynos4210State *exynos4_boards_init_common(
{
exynos4_board_binfo.ram_size = exynos4_board_ram_size[board_type];
exynos4_board_binfo.board_id = exynos4_board_id[board_type];
+ exynos4_board_binfo.smp_bootreg_addr =
+ exynos4_board_smp_bootreg_addr[board_type];
exynos4_board_binfo.nb_cpus = smp_cpus;
exynos4_board_binfo.kernel_filename = kernel_filename;
exynos4_board_binfo.initrd_filename = initrd_filename;
exynos4_board_binfo.kernel_cmdline = kernel_cmdline;
+ exynos4_board_binfo.smp_priv_base = EXYNOS4210_SMP_PRIVATE_BASE_ADDR;
PRINT_DEBUG("\n ram_size: %luMiB [0x%08lx]\n"
" kernel_filename: %s\n"
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 08/11] hw/exynos4210.c: Boot secondary CPU.
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 08/11] hw/exynos4210.c: Boot secondary CPU Evgeny Voevodin
@ 2012-01-10 16:16 ` Peter Maydell
2012-01-11 6:13 ` Evgeny Voevodin
0 siblings, 1 reply; 25+ messages in thread
From: Peter Maydell @ 2012-01-10 16:16 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
> + /*
> + * Hack: Map SECOND_CPU_BOOTREG, because it is in PMU USER5 register.
> + */
Shouldn't we be modelling the PMU then?
> + memory_region_init_ram(&s->bootreg_mem, NULL, "exynos4210.bootreg", 0x4);
> + memory_region_add_subregion(system_mem, EXYNOS4210_SECOND_CPU_BOOTREG,
> + &s->bootreg_mem);
> +
> +static int exynos4_board_smp_bootreg_addr[EXYNOS4_NUM_OF_BOARDS] = {
> + [EXYNOS4_BOARD_NURI] = EXYNOS4210_SECOND_CPU_BOOTREG,
> + [EXYNOS4_BOARD_SMDKC210] = EXYNOS4210_SECOND_CPU_BOOTREG,
> +};
Is this actually likely to differ between boards, or is it really a property
of the SoC itself?
See also note in other patch about reordering and merging this patch with
an earlier one.
-- PMM
^ permalink raw reply [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 08/11] hw/exynos4210.c: Boot secondary CPU.
2012-01-10 16:16 ` Peter Maydell
@ 2012-01-11 6:13 ` Evgeny Voevodin
0 siblings, 0 replies; 25+ messages in thread
From: Evgeny Voevodin @ 2012-01-11 6:13 UTC (permalink / raw)
To: Peter Maydell
Cc: kyungmin.park, m.kozlov, jehyung.lee, qemu-devel, d.solodkiy
On 01/10/2012 08:16 PM, Peter Maydell wrote:
> On 23 December 2011 11:40, Evgeny Voevodin<e.voevodin@samsung.com> wrote:
>> + /*
>> + * Hack: Map SECOND_CPU_BOOTREG, because it is in PMU USER5 register.
>> + */
> Shouldn't we be modelling the PMU then?
>
Power Management Unit (PMU) is quite tricky and not critical for emulation.
At this time PMU emulation is paused. It just represents about 16K
registers array.
I don't think that it is a good idea to include such a device into
mainline code in
order to provide one of it's register for secondary CPU boot-up.
>> + memory_region_init_ram(&s->bootreg_mem, NULL, "exynos4210.bootreg", 0x4);
>> + memory_region_add_subregion(system_mem, EXYNOS4210_SECOND_CPU_BOOTREG,
>> +&s->bootreg_mem);
>> +
>
>> +static int exynos4_board_smp_bootreg_addr[EXYNOS4_NUM_OF_BOARDS] = {
>> + [EXYNOS4_BOARD_NURI] = EXYNOS4210_SECOND_CPU_BOOTREG,
>> + [EXYNOS4_BOARD_SMDKC210] = EXYNOS4210_SECOND_CPU_BOOTREG,
>> +};
> Is this actually likely to differ between boards, or is it really a property
> of the SoC itself?
>
Yes, it is specific to a board. There are different boards on exynos4210
SOC which have
different bootreg addresses. At this time we don't emulate them.
--
Kind regards,
Evgeny Voevodin,
Leading Software Engineer,
ASWG, Moscow R&D center, Samsung Electronics
e-mail: e.voevodin@samsung.com
^ permalink raw reply [flat|nested] 25+ messages in thread
* [Qemu-devel] [PATCH v5 09/11] hw/lan9118: Add basic 16-bit mode support.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (7 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 08/11] hw/exynos4210.c: Boot secondary CPU Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 16:29 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 10/11] hw/exynos4210.c: Add LAN support for SMDKC210 Evgeny Voevodin
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 11/11] Exynos4210: added display controller implementation Evgeny Voevodin
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
hw/lan9118.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 110 insertions(+), 5 deletions(-)
diff --git a/hw/lan9118.c b/hw/lan9118.c
index 7e64c5d..21b7b23 100644
--- a/hw/lan9118.c
+++ b/hw/lan9118.c
@@ -212,6 +212,17 @@ typedef struct {
int rxp_offset;
int rxp_size;
int rxp_pad;
+
+ uint32_t write_word_prev_offset;
+ uint32_t write_word_n;
+ uint16_t write_word_l;
+ uint16_t write_word_h;
+ uint32_t read_word_prev_offset;
+ uint32_t read_word_n;
+ uint32_t read_long;
+
+ uint32_t mode_16bit;
+
} lan9118_state;
static void lan9118_update(lan9118_state *s)
@@ -306,7 +317,7 @@ static void lan9118_reset(DeviceState *d)
s->fifo_int = 0x48000000;
s->rx_cfg = 0;
s->tx_cfg = 0;
- s->hw_cfg = 0x00050000;
+ s->hw_cfg = s->mode_16bit ? 0x00050000 : 0x00050004;
s->pmt_ctrl &= 0x45;
s->gpio_cfg = 0;
s->txp->fifo_used = 0;
@@ -345,6 +356,9 @@ static void lan9118_reset(DeviceState *d)
s->mac_mii_data = 0;
s->mac_flow = 0;
+ s->read_word_n = 0;
+ s->write_word_n = 0;
+
phy_reset(s);
s->eeprom_writable = 0;
@@ -900,7 +914,7 @@ static void lan9118_writel(void *opaque, target_phys_addr_t offset,
{
lan9118_state *s = (lan9118_state *)opaque;
offset &= 0xff;
-
+
//DPRINTF("Write reg 0x%02x = 0x%08x\n", (int)offset, val);
if (offset >= 0x20 && offset < 0x40) {
/* TX FIFO */
@@ -950,7 +964,7 @@ static void lan9118_writel(void *opaque, target_phys_addr_t offset,
/* SRST */
lan9118_reset(&s->busdev.qdev);
} else {
- s->hw_cfg = val & 0x003f300;
+ s->hw_cfg = (val & 0x003f300) | (s->hw_cfg & 0x4);
}
break;
case CSR_RX_DP_CTRL:
@@ -1029,6 +1043,46 @@ static void lan9118_writel(void *opaque, target_phys_addr_t offset,
lan9118_update(s);
}
+static void lan9118_writew(void *opaque, target_phys_addr_t offset,
+ uint32_t val)
+{
+ lan9118_state *s = (lan9118_state *)opaque;
+ offset &= 0xff;
+
+ if (s->write_word_prev_offset != (offset & ~0x3)) {
+ /* New offset, reset word counter */
+ s->write_word_n = 0;
+ s->write_word_prev_offset = offset & ~0x3;
+ }
+
+ if (offset & 0x2) {
+ s->write_word_h = val;
+ } else {
+ s->write_word_l = val;
+ }
+
+ //DPRINTF("Writew reg 0x%02x = 0x%08x\n", (int)offset, val);
+ s->write_word_n++;
+ if (s->write_word_n == 2) {
+ s->write_word_n = 0;
+ lan9118_writel(s, offset & ~3, s->write_word_l +
+ (s->write_word_h << 16), 4);
+ }
+}
+
+static void lan9118_16bit_mode_write(void *opaque, target_phys_addr_t offset,
+ uint64_t val, unsigned size)
+{
+ switch (size) {
+ case 2:
+ return lan9118_writew(opaque, offset, (uint32_t)val);
+ case 4:
+ return lan9118_writel(opaque, offset, val, size);
+ }
+
+ hw_error("lan9118_write: Bad size 0x%x\n", size);
+}
+
static uint64_t lan9118_readl(void *opaque, target_phys_addr_t offset,
unsigned size)
{
@@ -1065,7 +1119,7 @@ static uint64_t lan9118_readl(void *opaque, target_phys_addr_t offset,
case CSR_TX_CFG:
return s->tx_cfg;
case CSR_HW_CFG:
- return s->hw_cfg | 0x4;
+ return s->hw_cfg;
case CSR_RX_DP_CTRL:
return 0;
case CSR_RX_FIFO_INF:
@@ -1103,12 +1157,60 @@ static uint64_t lan9118_readl(void *opaque, target_phys_addr_t offset,
return 0;
}
+static uint32_t lan9118_readw(void *opaque, target_phys_addr_t offset)
+{
+ lan9118_state *s = (lan9118_state *)opaque;
+ uint32_t val;
+
+ if (s->read_word_prev_offset != (offset & ~0x3)) {
+ /* New offset, reset word counter */
+ s->read_word_n = 0;
+ s->read_word_prev_offset = offset & ~0x3;
+ }
+
+ s->read_word_n++;
+ if (s->read_word_n == 1) {
+ s->read_long = lan9118_readl(s, offset & ~3, 4);
+ } else {
+ s->read_word_n = 0;
+ }
+
+ if (offset & 2) {
+ val = s->read_long >> 16;
+ } else {
+ val = s->read_long & 0xFFFF;
+ }
+
+ //DPRINTF("Readw reg 0x%02x, val 0x%x\n", (int)offset, val);
+ return val;
+}
+
+static uint64_t lan9118_16bit_mode_read(void *opaque, target_phys_addr_t offset,
+ unsigned size)
+{
+ switch (size) {
+ case 2:
+ return lan9118_readw(opaque, offset);
+ case 4:
+ return lan9118_readl(opaque, offset, size);
+ }
+
+ hw_error("lan9118_read: Bad size 0x%x\n", size);
+ return 0;
+}
+
static const MemoryRegionOps lan9118_mem_ops = {
.read = lan9118_readl,
.write = lan9118_writel,
.endianness = DEVICE_NATIVE_ENDIAN,
};
+static const MemoryRegionOps lan9118_16bit_mem_ops = {
+ .read = lan9118_16bit_mode_read,
+ .write = lan9118_16bit_mode_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
static void lan9118_cleanup(VLANClientState *nc)
{
lan9118_state *s = DO_UPCAST(NICState, nc, nc)->opaque;
@@ -1130,8 +1232,10 @@ static int lan9118_init1(SysBusDevice *dev)
lan9118_state *s = FROM_SYSBUS(lan9118_state, dev);
QEMUBH *bh;
int i;
+ const MemoryRegionOps *mem_ops =
+ s->mode_16bit ? &lan9118_16bit_mem_ops : &lan9118_mem_ops;
- memory_region_init_io(&s->mmio, &lan9118_mem_ops, s, "lan9118-mmio", 0x100);
+ memory_region_init_io(&s->mmio, mem_ops, s, "lan9118-mmio", 0x100);
sysbus_init_mmio(dev, &s->mmio);
sysbus_init_irq(dev, &s->irq);
qemu_macaddr_default_if_unset(&s->conf.macaddr);
@@ -1162,6 +1266,7 @@ static SysBusDeviceInfo lan9118_info = {
.qdev.reset = lan9118_reset,
.qdev.props = (Property[]) {
DEFINE_NIC_PROPERTIES(lan9118_state, conf),
+ DEFINE_PROP_UINT32("mode_16bit", lan9118_state, mode_16bit, 0),
DEFINE_PROP_END_OF_LIST(),
}
};
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* [Qemu-devel] [PATCH v5 10/11] hw/exynos4210.c: Add LAN support for SMDKC210.
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (8 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 09/11] hw/lan9118: Add basic 16-bit mode support Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 16:30 ` Peter Maydell
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 11/11] Exynos4210: added display controller implementation Evgeny Voevodin
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: kyungmin.park, m.kozlov, jehyung.lee, d.solodkiy, Evgeny Voevodin
SMDKC210 uses lan9215 chip, but lan9118 in 16-bit mode seems to
be enough.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
hw/exynos4_boards.c | 27 ++++++++++++++++++++++++++-
1 files changed, 26 insertions(+), 1 deletions(-)
diff --git a/hw/exynos4_boards.c b/hw/exynos4_boards.c
index 5410a6f..a005e0a 100644
--- a/hw/exynos4_boards.c
+++ b/hw/exynos4_boards.c
@@ -22,6 +22,8 @@
*/
#include "sysemu.h"
+#include "sysbus.h"
+#include "net.h"
#include "arm-misc.h"
#include "exec-memory.h"
#include "exynos4210.h"
@@ -41,6 +43,8 @@
#define PRINT_DEBUG(fmt, args...) do {} while (0)
#endif
+#define SMDK_LAN9118_BASE_ADDR 0x05000000
+
typedef enum exynos4_board_type {
EXYNOS4_BOARD_NURI,
EXYNOS4_BOARD_SMDKC210,
@@ -67,6 +71,24 @@ static struct arm_boot_info exynos4_board_binfo = {
.smp_loader_start = EXYNOS4210_SMP_BOOT_ADDR,
};
+static void lan9215_init(uint32_t base, qemu_irq irq)
+{
+ DeviceState *dev;
+ SysBusDevice *s;
+
+ /* This should be a 9215 but the 9118 is close enough */
+ if (nd_table[0].vlan) {
+ qemu_check_nic_model(&nd_table[0], "lan9118");
+ dev = qdev_create(NULL, "lan9118");
+ qdev_set_nic_properties(dev, &nd_table[0]);
+ qdev_prop_set_uint32(dev, "mode_16bit", 1);
+ qdev_init_nofail(dev);
+ s = sysbus_from_qdev(dev);
+ sysbus_mmio_map(s, 0, base);
+ sysbus_connect_irq(s, 0, irq);
+ }
+}
+
static Exynos4210State *exynos4_boards_init_common(
const char *kernel_filename,
const char *kernel_cmdline,
@@ -113,9 +135,12 @@ static void smdkc210_init(ram_addr_t ram_size,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
- exynos4_boards_init_common(kernel_filename,
+ Exynos4210State *s = exynos4_boards_init_common(kernel_filename,
kernel_cmdline, initrd_filename, EXYNOS4_BOARD_SMDKC210);
+ lan9215_init(SMDK_LAN9118_BASE_ADDR,
+ qemu_irq_invert(s->irq_table[exynos4210_get_irq(37, 1)]));
+
arm_load_kernel(first_cpu, &exynos4_board_binfo);
}
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* [Qemu-devel] [PATCH v5 11/11] Exynos4210: added display controller implementation
2011-12-23 11:40 [Qemu-devel] [PATCH v5 00/11] ARM: Samsung Exynos4210-based boards support Evgeny Voevodin
` (9 preceding siblings ...)
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 10/11] hw/exynos4210.c: Add LAN support for SMDKC210 Evgeny Voevodin
@ 2011-12-23 11:40 ` Evgeny Voevodin
2012-01-10 16:51 ` Peter Maydell
10 siblings, 1 reply; 25+ messages in thread
From: Evgeny Voevodin @ 2011-12-23 11:40 UTC (permalink / raw)
To: qemu-devel
Cc: Mitsyanko Igor, Evgeny Voevodin, kyungmin.park, d.solodkiy,
m.kozlov, jehyung.lee
From: Mitsyanko Igor <i.mitsyanko@samsung.com>
Exynos4210 display controller (FIMD) has 5 hardware windows with alpha and
chroma key blending functions.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
---
Makefile.target | 3 +-
hw/exynos4210.c | 9 +
hw/exynos4210_fimd.c | 1783 ++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 1794 insertions(+), 1 deletions(-)
create mode 100644 hw/exynos4210_fimd.c
diff --git a/Makefile.target b/Makefile.target
index f11d4c4..17a8599 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -337,7 +337,8 @@ obj-arm-y += arm_boot.o pl011.o pl031.o pl050.o pl080.o pl110.o pl181.o pl190.o
obj-arm-y += versatile_pci.o
obj-arm-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
obj-arm-y += exynos4_boards.o exynos4210.o exynos4210_uart.o exynos4210_gic.o \
- exynos4210_combiner.o exynos4210_pwm.o exynos4210_mct.o
+ exynos4210_combiner.o exynos4210_pwm.o exynos4210_mct.o \
+ exynos4210_fimd.o
obj-arm-y += arm_mptimer.o
obj-arm-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
obj-arm-y += pl061.o
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
index badeacf..ab83b29 100644
--- a/hw/exynos4210.c
+++ b/hw/exynos4210.c
@@ -56,6 +56,9 @@
#define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000
#define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000
+/* Display controllers (FIMD) */
+#define EXYNOS4210_FIMD0_BASE_ADDR 0x11C00000
+
static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43,
0x09, 0x00, 0x00, 0x00 };
@@ -339,5 +342,11 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
EXYNOS4210_UART3_FIFO_SIZE, 3, NULL,
irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 3)]);
+ /*** Display controller (FIMD) ***/
+ sysbus_create_varargs("exynos4210.fimd", EXYNOS4210_FIMD0_BASE_ADDR,
+ irq_table[exynos4210_get_irq(11, 0)],
+ irq_table[exynos4210_get_irq(11, 1)],
+ irq_table[exynos4210_get_irq(11, 2)],
+ NULL);
return s;
}
diff --git a/hw/exynos4210_fimd.c b/hw/exynos4210_fimd.c
new file mode 100644
index 0000000..6eb0416
--- /dev/null
+++ b/hw/exynos4210_fimd.c
@@ -0,0 +1,1783 @@
+/*
+ * Samsung exynos4210 Display Controller (FIMD)
+ *
+ * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd.
+ * All rights reserved.
+ * Based on LCD controller for Samsung S5PC1xx-based board emulation
+ * by Kirill Batuzov <batuzovk@ispras.ru>
+ *
+ * Contributed by Mitsyanko Igor <i.mitsyanko@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu-common.h"
+#include "cpu-all.h"
+#include "sysbus.h"
+#include "console.h"
+#include "pixel_ops.h"
+
+/* Debug messages configuration */
+#define EXYNOS4210_FIMD_DEBUG 0
+#define EXYNOS4210_FIMD_MODE_TRACE 0
+
+#if EXYNOS4210_FIMD_DEBUG == 0
+ #define DPRINT_L1(fmt, args...) do { } while (0)
+ #define DPRINT_L2(fmt, args...) do { } while (0)
+ #define DPRINT_ERROR(fmt, args...) do { } while (0)
+#elif EXYNOS4210_FIMD_DEBUG == 1
+ #define DPRINT_L1(fmt, args...) \
+ do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+ #define DPRINT_L2(fmt, args...) do { } while (0)
+ #define DPRINT_ERROR(fmt, args...) \
+ do {fprintf(stderr, "QEMU FIMD ERROR: "fmt, ## args); } while (0)
+#else
+ #define DPRINT_L1(fmt, args...) \
+ do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+ #define DPRINT_L2(fmt, args...) \
+ do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+ #define DPRINT_ERROR(fmt, args...) \
+ do {fprintf(stderr, "QEMU FIMD ERROR: "fmt, ## args); } while (0)
+#endif
+
+#if EXYNOS4210_FIMD_MODE_TRACE == 0
+ #define DPRINT_TRACE(fmt, args...) do { } while (0)
+#else
+ #define DPRINT_TRACE(fmt, args...) \
+ do {fprintf(stderr, "QEMU FIMD: "fmt, ## args); } while (0)
+#endif
+
+#define NUM_OF_WINDOWS 5
+#define FIMD_REGS_SIZE 0x4114
+
+/* Video main control registers */
+#define FIMD_VIDCON0 0x0000
+#define FIMD_VIDCON1 0x0004
+#define FIMD_VIDCON2 0x0008
+#define FIMD_VIDCON3 0x000C
+#define FIMD_VIDCON0_ENVID_F (1 << 0)
+#define FIMD_VIDCON0_ENVID (1 << 1)
+#define FIMD_VIDCON0_ENVID_MASK ((1 << 0) | (1 << 1))
+#define FIMD_VIDCON1_ROMASK 0x07FFE000
+
+/* Video time control registers */
+#define FIMD_VIDTCON_START 0x10
+#define FIMD_VIDTCON_END 0x1C
+#define FIMD_VIDTCON2_SIZE_MASK 0x07FF
+#define FIMD_VIDTCON2_HOR_SHIFT 0
+#define FIMD_VIDTCON2_VER_SHIFT 11
+
+/* Window control registers */
+#define FIMD_WINCON_START 0x0020
+#define FIMD_WINCON_END 0x0030
+#define FIMD_WINCON_ROMASK 0x82200000
+#define FIMD_WINCON_ENWIN (1 << 0)
+#define FIMD_WINCON_BLD_PIX (1 << 6)
+#define FIMD_WINCON_ALPHA_MUL (1 << 7)
+#define FIMD_WINCON_ALPHA_SEL (1 << 1)
+#define FIMD_WINCON_SWAP 0x078000
+#define FIMD_WINCON_SWAP_SHIFT 15
+#define FIMD_WINCON_SWAP_WORD 0x1
+#define FIMD_WINCON_SWAP_HWORD 0x2
+#define FIMD_WINCON_SWAP_BYTE 0x4
+#define FIMD_WINCON_SWAP_BITS 0x8
+#define FIMD_WINCON_BUFSTATUS_L (1 << 21)
+#define FIMD_WINCON_BUFSTATUS_H (1 << 31)
+#define FIMD_WINCON_BUFSTATUS ((1 << 21) | (1 << 31))
+#define FIMD_WINCON_BUF0_STAT ((0 << 21) | (0 << 31))
+#define FIMD_WINCON_BUF1_STAT ((1 << 21) | (0 << 31))
+#define FIMD_WINCON_BUF2_STAT ((0 << 21) | (1 << 31))
+#define FIMD_WINCON_BUFSELECT ((1 << 20) | (1 << 30))
+#define FIMD_WINCON_BUF0_SEL ((0 << 20) | (0 << 30))
+#define FIMD_WINCON_BUF1_SEL ((1 << 20) | (0 << 30))
+#define FIMD_WINCON_BUF2_SEL ((0 << 20) | (1 << 30))
+#define FIMD_WINCON_BUFMODE (1 << 14)
+#define IS_PALETTIZED_MODE(w) (w->wincon & 0xC)
+#define PAL_MODE_WITH_ALPHA(x) ((x) == 7)
+#define WIN_BPP_MODE(w) ((w->wincon >> 2) & 0xF)
+#define WIN_BPP_MODE_WITH_ALPHA(w) \
+ (WIN_BPP_MODE(w) == 0xD || WIN_BPP_MODE(w) == 0xE)
+
+/* Shadow control register */
+#define FIMD_SHADOWCON 0x0034
+#define FIMD_WIN_NOT_PROTECTED(s, w) (!(s->shadowcon & (1 << (10 + (w)))))
+/* Channel mapping control register */
+#define FIMD_WINCHMAP 0x003C
+
+/* Window position control registers */
+#define FIMD_VIDOSD_START 0x0040
+#define FIMD_VIDOSD_END 0x0088
+#define FIMD_VIDOSD_COORD_MASK 0x07FF
+#define FIMD_VIDOSD_HOR_SHIFT 11
+#define FIMD_VIDOSD_VER_SHIFT 0
+#define FIMD_VIDOSD_ALPHA_AEN0 0xFFF000
+#define FIMD_VIDOSD_AEN0_SHIFT 12
+#define FIMD_VIDOSD_ALPHA_AEN1 0x000FFF
+
+/* Frame buffer address registers */
+#define FIMD_VIDWADD0_START 0x0A0
+#define FIMD_VIDWADD0_END 0x0C4
+#define FIMD_VIDWADD1_START 0x0D0
+#define FIMD_VIDWADD1_END 0x0F4
+#define FIMD_VIDWADD2_START 0x100
+#define FIMD_VIDWADD2_END 0x110
+#define FIMD_VIDWADD2_PAGEWIDTH 0x1FFF
+#define FIMD_VIDWADD2_OFFSIZE 0x1FFF
+#define FIMD_VIDWADD2_OFFSIZE_SHIFT 13
+
+/* Video interrupt control registers */
+#define FIMD_VIDINTCON0 0x130
+#define FIMD_VIDINTCON1 0x134
+
+/* Window color key registers */
+#define FIMD_WKEYCON_START 0x140
+#define FIMD_WKEYCON_END 0x15C
+#define FIMD_WKEYCON0_COMPKEY 0x00FFFFFF
+#define FIMD_WKEYCON0_CTL_SHIFT 24
+#define FIMD_WKEYCON0_DIRCON (1 << 24)
+#define FIMD_WKEYCON0_KEYEN (1 << 25)
+#define FIMD_WKEYCON0_KEYBLEN (1 << 26)
+/* Window color key alpha control register */
+#define FIMD_WKEYALPHA_START 0x160
+#define FIMD_WKEYALPHA_END 0x16C
+
+/* Dithering control register */
+#define FIMD_DITHMODE 0x170
+
+/* Window alpha control registers */
+#define FIMD_VIDALPHA_ALPHA_LOWER 0x000F0F0F
+#define FIMD_VIDALPHA_ALPHA_UPPER 0x00F0F0F0
+#define FIMD_VIDWALPHA_START 0x21C
+#define FIMD_VIDWALPHA_END 0x240
+
+/* Window color map registers */
+#define FIMD_WINMAP_START 0x180
+#define FIMD_WINMAP_END 0x190
+#define FIMD_WINMAP_EN (1 << 24)
+#define FIMD_WINMAP_COLOR_MASK 0x00FFFFFF
+
+/* Window palette control registers */
+#define FIMD_WPALCON_HIGH 0x019C
+#define FIMD_WPALCON_LOW 0x01A0
+#define FIMD_WPALCON_UPDATEEN (1 << 9)
+#define FIMD_WPAL_W0PAL_L 0x07
+#define FIMD_WPAL_W0PAL_L_SHT 0
+#define FIMD_WPAL_W1PAL_L 0x07
+#define FIMD_WPAL_W1PAL_L_SHT 3
+#define FIMD_WPAL_W2PAL_L 0x01
+#define FIMD_WPAL_W2PAL_L_SHT 6
+#define FIMD_WPAL_W2PAL_H 0x06
+#define FIMD_WPAL_W2PAL_H_SHT 8
+#define FIMD_WPAL_W3PAL_L 0x01
+#define FIMD_WPAL_W3PAL_L_SHT 7
+#define FIMD_WPAL_W3PAL_H 0x06
+#define FIMD_WPAL_W3PAL_H_SHT 12
+#define FIMD_WPAL_W4PAL_L 0x01
+#define FIMD_WPAL_W4PAL_L_SHT 8
+#define FIMD_WPAL_W4PAL_H 0x06
+#define FIMD_WPAL_W4PAL_H_SHT 16
+
+/* Trigger control registers */
+#define FIMD_TRIGCON 0x01A4
+#define FIMD_TRIGCON_ROMASK 0x00000004
+
+/* LCD I80 Interface Control */
+#define FIMD_I80IFCON_START 0x01B0
+#define FIMD_I80IFCON_END 0x01BC
+/* Color gain control register */
+#define FIMD_COLORGAINCON 0x01C0
+/* LCD i80 Interface Command Control */
+#define FIMD_LDI_CMDCON0 0x01D0
+#define FIMD_LDI_CMDCON1 0x01D4
+/* I80 System Interface Manual Command Control */
+#define FIMD_SIFCCON0 0x01E0
+#define FIMD_SIFCCON2 0x01E8
+
+/* Hue Control Registers */
+#define FIMD_HUECOEFCR_START 0x01EC
+#define FIMD_HUECOEFCR_END 0x01F4
+#define FIMD_HUECOEFCB_START 0x01FC
+#define FIMD_HUECOEFCB_END 0x0208
+#define FIMD_HUEOFFSET 0x020C
+
+/* Video interrupt control registers */
+#define FIMD_VIDINT_INTFIFOPEND (1 << 0)
+#define FIMD_VIDINT_INTFRMPEND (1 << 1)
+#define FIMD_VIDINT_INTI80PEND (1 << 2)
+#define FIMD_VIDINT_INTEN (1 << 0)
+#define FIMD_VIDINT_INTFIFOEN (1 << 1)
+#define FIMD_VIDINT_INTFRMEN (1 << 12)
+#define FIMD_VIDINT_I80IFDONE (1 << 17)
+
+/* Window blend equation control registers */
+#define FIMD_BLENDEQ_START 0x0244
+#define FIMD_BLENDEQ_END 0x0250
+#define FIMD_BLENDCON 0x0260
+#define FIMD_ALPHA_8BIT (1 << 0)
+#define FIMD_BLENDEQ_COEF_MASK 0xF
+
+/* Window RTQOS Control Registers */
+#define FIMD_WRTQOSCON_START 0x0264
+#define FIMD_WRTQOSCON_END 0x0274
+
+/* LCD I80 Interface Command */
+#define FIMD_I80IFCMD_START 0x0280
+#define FIMD_I80IFCMD_END 0x02AC
+
+/* Shadow windows control registers */
+#define FIMD_SHD_ADD0_START 0x40A0
+#define FIMD_SHD_ADD0_END 0x40C0
+#define FIMD_SHD_ADD1_START 0x40D0
+#define FIMD_SHD_ADD1_END 0x40F0
+#define FIMD_SHD_ADD2_START 0x4100
+#define FIMD_SHD_ADD2_END 0x4110
+
+/* Palette memory */
+#define FIMD_PAL_MEM_START 0x2400
+#define FIMD_PAL_MEM_END 0x37FC
+/* Palette memory aliases for windows 0 and 1 */
+#define FIMD_PALMEM_AL_START 0x0400
+#define FIMD_PALMEM_AL_END 0x0BFC
+
+typedef struct {
+ uint8_t r, g, b;
+ /* D[31..24]dummy, D[23..16]rAlpha, D[15..8]gAlpha, D[7..0]bAlpha */
+ uint32_t a;
+} rgba;
+#define RGBA_SIZE 7
+
+typedef void pixel_to_rgb_func(uint32_t pixel, rgba *p);
+typedef struct Exynos4210fimdWindow Exynos4210fimdWindow;
+
+struct Exynos4210fimdWindow {
+ uint32_t wincon; /* Window control register */
+ uint32_t buf_start[3]; /* Start address for video frame buffer */
+ uint32_t buf_end[3]; /* End address for video frame buffer */
+ uint32_t keycon[2]; /* Window color key registers */
+ uint32_t keyalpha; /* Color key alpha control register */
+ uint32_t winmap; /* Window color map register */
+ uint32_t blendeq; /* Window blending equation control register */
+ uint32_t rtqoscon; /* Window RTQOS Control Registers */
+ uint32_t palette[256]; /* Palette RAM */
+ uint32_t shadow_buf_start; /* Start address of shadow frame buffer */
+ uint32_t shadow_buf_end; /* End address of shadow frame buffer */
+ uint32_t shadow_buf_size; /* Virtual shadow screen width */
+
+ pixel_to_rgb_func *pixel_to_rgb;
+ void (*draw_line)(Exynos4210fimdWindow *w, uint8_t *src, uint8_t *dst,
+ bool blend);
+ uint32_t (*get_alpha)(Exynos4210fimdWindow *w, uint32_t pix_a);
+ uint16_t lefttop_x, lefttop_y; /* VIDOSD0 register */
+ uint16_t rightbot_x, rightbot_y; /* VIDOSD1 register */
+ uint32_t osdsize; /* VIDOSD2&3 register */
+ uint32_t alpha_val[2]; /* VIDOSD2&3, VIDWALPHA registers */
+ uint16_t virtpage_width; /* VIDWADD2 register */
+ uint16_t virtpage_offsize; /* VIDWADD2 register */
+};
+
+typedef struct {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+ DisplayState *console;
+ qemu_irq irq[3];
+
+ uint32_t vidcon[4]; /* Video main control registers 0-3 */
+ uint32_t vidtcon[4]; /* Video time control registers 0-3 */
+ uint32_t shadowcon; /* Window shadow control register */
+ uint32_t winchmap; /* Channel mapping control register */
+ uint32_t vidintcon[2]; /* Video interrupt control registers */
+ uint32_t dithmode; /* Dithering control register */
+ uint32_t wpalcon[2]; /* Window palette control registers */
+ uint32_t trigcon; /* Trigger control register */
+ uint32_t i80ifcon[4]; /* I80 interface control registers */
+ uint32_t colorgaincon; /* Color gain control register */
+ uint32_t ldi_cmdcon[2]; /* LCD I80 interface command control */
+ uint32_t sifccon[3]; /* I80 System Interface Manual Command Control */
+ uint32_t huecoef_cr[4]; /* Hue control registers */
+ uint32_t huecoef_cb[4]; /* Hue control registers */
+ uint32_t hueoffset; /* Hue offset control register */
+ uint32_t i80ifcmd[12]; /* LCD I80 Interface Command */
+
+ Exynos4210fimdWindow window[5]; /* Window-specific registers */
+ uint8_t *ifb; /* Internal frame buffer */
+ bool blendcon; /* Blending control register */
+ bool invalidate; /* Image needs to be redrawn */
+ bool enabled; /* Display controller is enabled */
+} Exynos4210fimdState;
+
+/* Perform byte/halfword/word swap of data according to WINCON */
+static inline void fimd_swap_data(unsigned int swap_ctl, uint64_t *data)
+{
+ int i;
+ uint64_t res;
+ uint64_t x = *data;
+
+ if (swap_ctl & FIMD_WINCON_SWAP_BITS) {
+ res = 0;
+ for (i = 0; i < 64; i++) {
+ if (x & (1ULL << (64 - i))) {
+ res |= (1ULL << i);
+ }
+ }
+ x = res;
+ }
+ if (swap_ctl & FIMD_WINCON_SWAP_BYTE) {
+ x = ((x & 0x00000000000000FFULL) << 56) |
+ ((x & 0x000000000000FF00ULL) << 40) |
+ ((x & 0x0000000000FF0000ULL) << 24) |
+ ((x & 0x00000000FF000000ULL) << 8) |
+ ((x & 0x000000FF00000000ULL) >> 8) |
+ ((x & 0x0000FF0000000000ULL) >> 24) |
+ ((x & 0x00FF000000000000ULL) >> 40) |
+ ((x & 0xFF00000000000000ULL) >> 56);
+ }
+ if (swap_ctl & FIMD_WINCON_SWAP_HWORD) {
+ x = ((x & 0x000000000000FFFFULL) << 48) |
+ ((x & 0x00000000FFFF0000ULL) << 16) |
+ ((x & 0x0000FFFF00000000ULL) >> 16) |
+ ((x & 0xFFFF000000000000ULL) >> 48);
+ }
+ if (swap_ctl & FIMD_WINCON_SWAP_WORD) {
+ x = ((x & 0x00000000FFFFFFFFULL) << 32) |
+ ((x & 0xFFFFFFFF00000000ULL) >> 32);
+ }
+
+ *data = x;
+}
+
+/* Conversion routines of Pixel data from frame buffer area to internal RGBA
+ * pixel representation.
+ * Every color component internally represented as 8-bit value. If original
+ * data has less than 8 bit for component, data is extended to 8 bit. For
+ * example, if blue component has only two possible values 0 and 1 it will be
+ * extended to 0 and 0xFF */
+
+/* One bit for alpha representation */
+#define DEF_PIXEL_TO_RGB_A1(N, R, G, B) \
+static void N(uint32_t pixel, rgba *p) \
+{ \
+ p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
+ ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
+ pixel >>= (B); \
+ p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
+ ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
+ pixel >>= (G); \
+ p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
+ ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
+ pixel >>= (R); \
+ p->a = (pixel & 0x1); \
+}
+
+DEF_PIXEL_TO_RGB_A1(pixel_a444_to_rgb, 4, 4, 4)
+DEF_PIXEL_TO_RGB_A1(pixel_a555_to_rgb, 5, 5, 5)
+DEF_PIXEL_TO_RGB_A1(pixel_a666_to_rgb, 6, 6, 6)
+DEF_PIXEL_TO_RGB_A1(pixel_a665_to_rgb, 6, 6, 5)
+DEF_PIXEL_TO_RGB_A1(pixel_a888_to_rgb, 8, 8, 8)
+DEF_PIXEL_TO_RGB_A1(pixel_a887_to_rgb, 8, 8, 7)
+
+/* Alpha component is always zero */
+#define DEF_PIXEL_TO_RGB_A0(N, R, G, B) \
+static void N(uint32_t pixel, rgba *p) \
+{ \
+ p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
+ ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
+ pixel >>= (B); \
+ p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
+ ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
+ pixel >>= (G); \
+ p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
+ ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
+ p->a = 0x0; \
+}
+
+DEF_PIXEL_TO_RGB_A0(pixel_565_to_rgb, 5, 6, 5)
+DEF_PIXEL_TO_RGB_A0(pixel_555_to_rgb, 5, 5, 5)
+DEF_PIXEL_TO_RGB_A0(pixel_666_to_rgb, 6, 6, 6)
+DEF_PIXEL_TO_RGB_A0(pixel_888_to_rgb, 8, 8, 8)
+
+/* Alpha component has some meaningful value */
+#define DEF_PIXEL_TO_RGB_A(N, R, G, B, A) \
+static void N(uint32_t pixel, rgba *p) \
+{ \
+ p->b = ((pixel & ((1 << (B)) - 1)) << (8 - (B))) | \
+ ((pixel >> (2 * (B) - 8)) & ((1 << (8 - (B))) - 1)); \
+ pixel >>= (B); \
+ p->g = (pixel & ((1 << (G)) - 1)) << (8 - (G)) | \
+ ((pixel >> (2 * (G) - 8)) & ((1 << (8 - (G))) - 1)); \
+ pixel >>= (G); \
+ p->r = (pixel & ((1 << (R)) - 1)) << (8 - (R)) | \
+ ((pixel >> (2 * (R) - 8)) & ((1 << (8 - (R))) - 1)); \
+ pixel >>= (R); \
+ p->a = (pixel & ((1 << (A)) - 1)) << (8 - (A)) | \
+ ((pixel >> (2 * (A) - 8)) & ((1 << (8 - (A))) - 1)); \
+ p->a = p->a | (p->a << 8) | (p->a << 16); \
+}
+
+DEF_PIXEL_TO_RGB_A(pixel_4444_to_rgb, 4, 4, 4, 4)
+DEF_PIXEL_TO_RGB_A(pixel_8888_to_rgb, 8, 8, 8, 8)
+
+/* Lookup table to extent 2-bit color component to 8 bit */
+static const uint8_t pixel_lutable_2b[4] = {
+ 0x0, 0x55, 0xAA, 0xFF
+};
+/* Lookup table to extent 3-bit color component to 8 bit */
+static const uint8_t pixel_lutable_3b[8] = {
+ 0x0, 0x24, 0x49, 0x6D, 0x92, 0xB6, 0xDB, 0xFF
+};
+/* Special case for a232 bpp mode */
+static void pixel_a232_to_rgb(uint32_t pixel, rgba *p)
+{
+ p->b = pixel_lutable_2b[(pixel & 0x3)];
+ pixel >>= 2;
+ p->g = pixel_lutable_3b[(pixel & 0x7)];
+ pixel >>= 3;
+ p->r = pixel_lutable_2b[(pixel & 0x3)];
+ pixel >>= 2;
+ p->a = (pixel & 0x1);
+}
+
+/* Special case for (5+1, 5+1, 5+1) mode. Data bit 15 is common LSB
+ * for all three color components */
+static void pixel_1555_to_rgb(uint32_t pixel, rgba *p)
+{
+ uint8_t comm = (pixel >> 15) & 1;
+ p->b = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
+ pixel >>= 5;
+ p->g = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
+ pixel >>= 5;
+ p->r = ((((pixel & 0x1F) << 1) | comm) << 2) | ((pixel >> 3) & 0x3);
+ p->a = 0x0;
+}
+
+/* Put/get pixel to/from internal LCD Controller framebuffer */
+
+static int put_pixel_ifb(const rgba p, uint8_t *d)
+{
+ *(uint8_t *)d++ = p.r;
+ *(uint8_t *)d++ = p.g;
+ *(uint8_t *)d++ = p.b;
+ *(uint32_t *)d = p.a;
+ return RGBA_SIZE;
+}
+
+static int get_pixel_ifb(const uint8_t *s, rgba *p)
+{
+ p->r = *(uint8_t *)s++;
+ p->g = *(uint8_t *)s++;
+ p->b = *(uint8_t *)s++;
+ p->a = (*(uint32_t *)s) & 0x00FFFFFF;
+ return RGBA_SIZE;
+}
+
+static pixel_to_rgb_func *palette_data_format[8] = {
+ [0] = pixel_565_to_rgb,
+ [1] = pixel_a555_to_rgb,
+ [2] = pixel_666_to_rgb,
+ [3] = pixel_a665_to_rgb,
+ [4] = pixel_a666_to_rgb,
+ [5] = pixel_888_to_rgb,
+ [6] = pixel_a888_to_rgb,
+ [7] = pixel_8888_to_rgb
+};
+
+/* Returns Index in palette data formats table for given window number WINDOW */
+static uint32_t
+exynos4210_fimd_palette_format(Exynos4210fimdState *s, int window)
+{
+ uint32_t ret;
+
+ switch (window) {
+ case 0:
+ ret = (s->wpalcon[1] >> FIMD_WPAL_W0PAL_L_SHT) & FIMD_WPAL_W0PAL_L;
+ if (ret != 7) {
+ ret = 6 - ret;
+ }
+ break;
+ case 1:
+ ret = (s->wpalcon[1] >> FIMD_WPAL_W1PAL_L_SHT) & FIMD_WPAL_W1PAL_L;
+ if (ret != 7) {
+ ret = 6 - ret;
+ }
+ break;
+ case 2:
+ ret = ((s->wpalcon[0] >> FIMD_WPAL_W2PAL_H_SHT) & FIMD_WPAL_W2PAL_H) |
+ ((s->wpalcon[1] >> FIMD_WPAL_W2PAL_L_SHT) & FIMD_WPAL_W2PAL_L);
+ break;
+ case 3:
+ ret = ((s->wpalcon[0] >> FIMD_WPAL_W3PAL_H_SHT) & FIMD_WPAL_W3PAL_H) |
+ ((s->wpalcon[1] >> FIMD_WPAL_W3PAL_L_SHT) & FIMD_WPAL_W3PAL_L);
+ break;
+ case 4:
+ ret = ((s->wpalcon[0] >> FIMD_WPAL_W4PAL_H_SHT) & FIMD_WPAL_W4PAL_H) |
+ ((s->wpalcon[1] >> FIMD_WPAL_W4PAL_L_SHT) & FIMD_WPAL_W4PAL_L);
+ break;
+ default:
+ hw_error("exynos4210.fimd: incorrect window number %d\n", window);
+ ret = 0;
+ break;
+ }
+ return ret;
+}
+
+#define FIMD_1_MINUS_COLOR(x) \
+ ((0xFF - ((x) & 0xFF)) | (0xFF00 - ((x) & 0xFF00)) | \
+ (0xFF0000 - ((x) & 0xFF0000)))
+#define EXTEND_LOWER_HALFBYTE(x) (((x) & 0xF0F0F) | (((x) << 4) & 0xF0F0F0))
+#define EXTEND_UPPER_HALFBYTE(x) (((x) & 0xF0F0F0) | (((x) >> 4) & 0xF0F0F))
+
+/* Multiply three lower bytes of two 32-bit words with each other.
+ * Each byte with values 0-255 is considered as a number with possible values
+ * in a range [0 - 1] */
+static inline uint32_t fimd_mult_each_byte(uint32_t a, uint32_t b)
+{
+ uint32_t tmp;
+ uint32_t ret;
+
+ ret = ((tmp = (((a & 0xFF) * (b & 0xFF)) / 0xFF)) > 0xFF) ? 0xFF : tmp;
+ ret |= ((tmp = ((((a >> 8) & 0xFF) * ((b >> 8) & 0xFF)) / 0xFF)) > 0xFF) ?
+ 0xFF00 : tmp << 8;
+ ret |= ((tmp = ((((a >> 16) & 0xFF) * ((b >> 16) & 0xFF)) / 0xFF)) > 0xFF) ?
+ 0xFF0000 : tmp << 16;
+ return ret;
+}
+
+/* For each corresponding bytes of two 32-bit words: (a*b + c*d)
+ * Byte values 0-255 are mapped to a range [0 .. 1] */
+static inline uint32_t
+fimd_mult_and_sum_each_byte(uint32_t a, uint32_t b, uint32_t c, uint32_t d)
+{
+ uint32_t tmp;
+ uint32_t ret;
+
+ ret = ((tmp = (((a & 0xFF) * (b & 0xFF) + (c & 0xFF) * (d & 0xFF)) / 0xFF))
+ > 0xFF) ? 0xFF : tmp;
+ ret |= ((tmp = ((((a >> 8) & 0xFF) * ((b >> 8) & 0xFF) + ((c >> 8) & 0xFF) *
+ ((d >> 8) & 0xFF)) / 0xFF)) > 0xFF) ? 0xFF00 : tmp << 8;
+ ret |= ((tmp = ((((a >> 16) & 0xFF) * ((b >> 16) & 0xFF) +
+ ((c >> 16) & 0xFF) * ((d >> 16) & 0xFF)) / 0xFF)) > 0xFF) ?
+ 0xFF0000 : tmp << 16;
+ return ret;
+}
+
+/* These routines cover all possible sources of window's transparent factor
+ * used in blending equation. Choice of routine is affected by WPALCON
+ * registers, BLENDCON register and window's WINCON register */
+
+static uint32_t fimd_get_alpha_pix(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return pix_a;
+}
+
+static uint32_t
+fimd_get_alpha_pix_extlow(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return EXTEND_LOWER_HALFBYTE(pix_a);
+}
+
+static uint32_t
+fimd_get_alpha_pix_exthigh(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return EXTEND_UPPER_HALFBYTE(pix_a);
+}
+
+static uint32_t fimd_get_alpha_mult(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return fimd_mult_each_byte(pix_a, w->alpha_val[0]);
+}
+
+static uint32_t fimd_get_alpha_mult_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return fimd_mult_each_byte(EXTEND_LOWER_HALFBYTE(pix_a),
+ EXTEND_UPPER_HALFBYTE(w->alpha_val[0]));
+}
+
+static uint32_t fimd_get_alpha_aen(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return w->alpha_val[pix_a];
+}
+
+static uint32_t fimd_get_alpha_aen_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return EXTEND_UPPER_HALFBYTE(w->alpha_val[pix_a]);
+}
+
+static uint32_t fimd_get_alpha_sel(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return w->alpha_val[(w->wincon & FIMD_WINCON_ALPHA_SEL) ? 1 : 0];
+}
+
+static uint32_t fimd_get_alpha_sel_ext(Exynos4210fimdWindow *w, uint32_t pix_a)
+{
+ return EXTEND_UPPER_HALFBYTE(w->alpha_val[(w->wincon &
+ FIMD_WINCON_ALPHA_SEL) ? 1 : 0]);
+}
+
+/* Updates currently active alpha value get function for specified window */
+static void fimd_update_get_alpha(Exynos4210fimdState *s, int win)
+{
+ Exynos4210fimdWindow *w = &s->window[win];
+
+ if (w->wincon & FIMD_WINCON_BLD_PIX) {
+ if ((w->wincon & FIMD_WINCON_ALPHA_SEL) && WIN_BPP_MODE_WITH_ALPHA(w)) {
+ /* In this case, alpha component contains meaningful value */
+ if (w->wincon & FIMD_WINCON_ALPHA_MUL) {
+ w->get_alpha = s->blendcon ?
+ fimd_get_alpha_mult : fimd_get_alpha_mult_ext;
+ } else {
+ w->get_alpha = s->blendcon ?
+ fimd_get_alpha_pix : fimd_get_alpha_pix_extlow;
+ }
+ } else {
+ if (IS_PALETTIZED_MODE(w) &&
+ PAL_MODE_WITH_ALPHA(exynos4210_fimd_palette_format(s, win))) {
+ /* Alpha component has 8-bit numeric value */
+ w->get_alpha = s->blendcon ? fimd_get_alpha_pix :
+ fimd_get_alpha_pix_exthigh;
+ } else {
+ /* Alpha has only two possible values (AEN) */
+ w->get_alpha = s->blendcon ? fimd_get_alpha_aen :
+ fimd_get_alpha_aen_ext;
+ }
+ }
+ } else {
+ w->get_alpha = s->blendcon ? fimd_get_alpha_sel :
+ fimd_get_alpha_sel_ext;
+ }
+}
+
+/* Blends current window's (w) pixel (foreground pixel *ret) with background
+ * window (w_blend) pixel p_bg according to formula:
+ * NEW_COLOR = a_coef x FG_PIXEL_COLOR + b_coef x BG_PIXEL_COLOR
+ * NEW_ALPHA = p_coef x FG_ALPHA + q_coef x BG_ALPHA
+ */
+static void
+exynos4210_fimd_blend_pixel(Exynos4210fimdWindow *w, rgba p_bg, rgba *ret)
+{
+ rgba p_fg = *ret;
+ uint32_t bg_color = ((p_bg.r & 0xFF) << 16) | ((p_bg.g & 0xFF) << 8) |
+ (p_bg.b & 0xFF);
+ uint32_t fg_color = ((p_fg.r & 0xFF) << 16) | ((p_fg.g & 0xFF) << 8) |
+ (p_fg.b & 0xFF);
+ uint32_t alpha_fg = p_fg.a;
+ int i;
+ /* It is possible that blending equation parameters a and b do not
+ * depend on window BLENEQ register. Account for this with first_coef */
+ enum { A_COEF = 0, B_COEF = 1, P_COEF = 2, Q_COEF = 3, COEF_NUM = 4};
+ uint32_t first_coef = A_COEF;
+ uint32_t blend_param[COEF_NUM];
+
+ if (w->keycon[0] & FIMD_WKEYCON0_KEYEN) {
+ uint32_t colorkey = (w->keycon[1] &
+ ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) & FIMD_WKEYCON0_COMPKEY;
+
+ if ((w->keycon[0] & FIMD_WKEYCON0_DIRCON) &&
+ (bg_color & ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) == colorkey) {
+ /* Foreground pixel is displayed */
+ if (w->keycon[0] & FIMD_WKEYCON0_KEYBLEN) {
+ alpha_fg = w->keyalpha;
+ blend_param[A_COEF] = alpha_fg;
+ blend_param[B_COEF] = FIMD_1_MINUS_COLOR(alpha_fg);
+ } else {
+ alpha_fg = 0;
+ blend_param[A_COEF] = 0xFFFFFF;
+ blend_param[B_COEF] = 0x0;
+ }
+ first_coef = P_COEF;
+ } else if ((w->keycon[0] & FIMD_WKEYCON0_DIRCON) == 0 &&
+ (fg_color & ~(w->keycon[0] & FIMD_WKEYCON0_COMPKEY)) == colorkey) {
+ /* Background pixel is displayed */
+ if (w->keycon[0] & FIMD_WKEYCON0_KEYBLEN) {
+ alpha_fg = w->keyalpha;
+ blend_param[A_COEF] = alpha_fg;
+ blend_param[B_COEF] = FIMD_1_MINUS_COLOR(alpha_fg);
+ } else {
+ alpha_fg = 0;
+ blend_param[A_COEF] = 0x0;
+ blend_param[B_COEF] = 0xFFFFFF;
+ }
+ first_coef = P_COEF;
+ }
+ }
+
+ for (i = first_coef; i < COEF_NUM; i++) {
+ switch ((w->blendeq >> i * 6) & FIMD_BLENDEQ_COEF_MASK) {
+ case 0:
+ blend_param[i] = 0;
+ break;
+ case 1:
+ blend_param[i] = 0xFFFFFF;
+ break;
+ case 2:
+ blend_param[i] = alpha_fg;
+ break;
+ case 3:
+ blend_param[i] = FIMD_1_MINUS_COLOR(alpha_fg);
+ break;
+ case 4:
+ blend_param[i] = p_bg.a;
+ break;
+ case 5:
+ blend_param[i] = FIMD_1_MINUS_COLOR(p_bg.a);
+ break;
+ case 6:
+ blend_param[i] = w->alpha_val[0];
+ break;
+ case 10:
+ blend_param[i] = fg_color;
+ break;
+ case 11:
+ blend_param[i] = FIMD_1_MINUS_COLOR(fg_color);
+ break;
+ case 12:
+ blend_param[i] = bg_color;
+ break;
+ case 13:
+ blend_param[i] = FIMD_1_MINUS_COLOR(bg_color);
+ break;
+ default:
+ hw_error("exynos4210.fimd: blend equation coef illegal value\n");
+ break;
+ }
+ }
+
+ fg_color = fimd_mult_and_sum_each_byte(bg_color, blend_param[B_COEF],
+ fg_color, blend_param[A_COEF]);
+ ret->b = fg_color & 0xFF;
+ fg_color >>= 8;
+ ret->g = fg_color & 0xFF;
+ fg_color >>= 8;
+ ret->r = fg_color & 0xFF;
+ ret->a = fimd_mult_and_sum_each_byte(alpha_fg, blend_param[P_COEF],
+ p_bg.a, blend_param[Q_COEF]);
+}
+
+/* These routines read data from video frame buffer in system RAM, convert
+ * this data to display controller internal representation, if necessary,
+ * perform pixel blending with data, currently presented in internal buffer.
+ * Result is stored in display controller internal frame buffer. */
+
+/* Draw line with index in palette table in RAM frame buffer data */
+#define DEF_DRAW_LINE_PALLETE(N) \
+static void glue(draw_line_palette_, N)(Exynos4210fimdWindow *w, uint8_t *src, \
+ uint8_t *dst, bool blend) \
+{ \
+ int width = w->rightbot_x - w->lefttop_x + 1; \
+ uint8_t *ifb = dst; \
+ uint8_t swap = (w->wincon & FIMD_WINCON_SWAP) >> FIMD_WINCON_SWAP_SHIFT; \
+ uint64_t data; \
+ rgba p, p_old; \
+ int i; \
+ do { \
+ data = ldq_raw((void *)src); \
+ src += 8; \
+ fimd_swap_data(swap, &data); \
+ for (i = (64 / (N) - 1); i >= 0; i--) { \
+ w->pixel_to_rgb(w->palette[(data >> ((N) * i)) & \
+ ((1ULL << (N)) - 1)], &p); \
+ p.a = w->get_alpha(w, p.a); \
+ if (blend) { \
+ ifb += get_pixel_ifb(ifb, &p_old); \
+ exynos4210_fimd_blend_pixel(w, p_old, &p); \
+ } \
+ dst += put_pixel_ifb(p, dst); \
+ } \
+ width -= (64 / (N)); \
+ } while (width > 0); \
+}
+
+/* Draw line with direct color value in RAM frame buffer data */
+#define DEF_DRAW_LINE_NOPALLETE(N) \
+static void glue(draw_line_, N)(Exynos4210fimdWindow *w, uint8_t *src, \
+ uint8_t *dst, bool blend) \
+{ \
+ int width = w->rightbot_x - w->lefttop_x + 1; \
+ uint8_t *ifb = dst; \
+ uint8_t swap = (w->wincon & FIMD_WINCON_SWAP) >> FIMD_WINCON_SWAP_SHIFT; \
+ uint64_t data; \
+ rgba p, p_old; \
+ int i; \
+ do { \
+ data = ldq_raw((void *)src); \
+ src += 8; \
+ fimd_swap_data(swap, &data); \
+ for (i = (64 / (N) - 1); i >= 0; i--) { \
+ w->pixel_to_rgb((data >> ((N) * i)) & ((1ULL << (N)) - 1), &p); \
+ p.a = w->get_alpha(w, p.a); \
+ if (blend) { \
+ ifb += get_pixel_ifb(ifb, &p_old); \
+ exynos4210_fimd_blend_pixel(w, p_old, &p); \
+ } \
+ dst += put_pixel_ifb(p, dst); \
+ } \
+ width -= (64 / (N)); \
+ } while (width > 0); \
+}
+
+DEF_DRAW_LINE_PALLETE(1)
+DEF_DRAW_LINE_PALLETE(2)
+DEF_DRAW_LINE_PALLETE(4)
+DEF_DRAW_LINE_PALLETE(8)
+DEF_DRAW_LINE_NOPALLETE(8) /* 8bpp mode has palette and non-palette versions */
+DEF_DRAW_LINE_NOPALLETE(16)
+DEF_DRAW_LINE_NOPALLETE(32)
+
+/* Special draw line routine for window color map case */
+static void draw_line_mapcolor(Exynos4210fimdWindow *w, uint8_t *src,
+ uint8_t *dst, bool blend)
+{
+ rgba p, p_old;
+ uint8_t *ifb = dst;
+ int width = w->rightbot_x - w->lefttop_x + 1;
+ uint32_t map_color = w->winmap & FIMD_WINMAP_COLOR_MASK;
+
+ do {
+ pixel_888_to_rgb(map_color, &p);
+ p.a = w->get_alpha(w, p.a);
+ if (blend) {
+ ifb += get_pixel_ifb(ifb, &p_old);
+ exynos4210_fimd_blend_pixel(w, p_old, &p);
+ }
+ dst += put_pixel_ifb(p, dst);
+ } while (--width);
+}
+
+/* Write RGB to QEMU's GraphicConsole framebuffer */
+
+static int put_to_qemufb_pixel8(const rgba p, uint8_t *d)
+{
+ uint32_t pixel = rgb_to_pixel8(p.r, p.g, p.b);
+ *(uint8_t *)d = pixel;
+ return 1;
+}
+
+static int put_to_qemufb_pixel15(const rgba p, uint8_t *d)
+{
+ uint32_t pixel = rgb_to_pixel15(p.r, p.g, p.b);
+ *(uint16_t *)d = pixel;
+ return 2;
+}
+
+static int put_to_qemufb_pixel16(const rgba p, uint8_t *d)
+{
+ uint32_t pixel = rgb_to_pixel16(p.r, p.g, p.b);
+ *(uint16_t *)d = pixel;
+ return 2;
+}
+
+static int put_to_qemufb_pixel24(const rgba p, uint8_t *d)
+{
+ uint32_t pixel = rgb_to_pixel24(p.r, p.g, p.b);
+ *(uint8_t *)d++ = (pixel >> 0) & 0xFF;
+ *(uint8_t *)d++ = (pixel >> 8) & 0xFF;
+ *(uint8_t *)d++ = (pixel >> 16) & 0xFF;
+ return 3;
+}
+
+static int put_to_qemufb_pixel32(const rgba p, uint8_t *d)
+{
+ uint32_t pixel = rgb_to_pixel24(p.r, p.g, p.b);
+ *(uint32_t *)d = pixel;
+ return 4;
+}
+
+/* Routine to copy pixel from internal buffer to QEMU buffer */
+static int (*put_pixel_toqemu)(const rgba p, uint8_t *pixel);
+static inline void fimd_update_putpix_qemu(int bpp)
+{
+ switch (bpp) {
+ case 8:
+ put_pixel_toqemu = put_to_qemufb_pixel8;
+ break;
+ case 15:
+ put_pixel_toqemu = put_to_qemufb_pixel15;
+ break;
+ case 16:
+ put_pixel_toqemu = put_to_qemufb_pixel16;
+ break;
+ case 24:
+ put_pixel_toqemu = put_to_qemufb_pixel24;
+ break;
+ case 32:
+ put_pixel_toqemu = put_to_qemufb_pixel32;
+ break;
+ default:
+ hw_error("exynos4210.fimd: unsupported BPP (%d)", bpp);
+ break;
+ }
+}
+
+/* Routine to copy a line from internal frame buffer to QEMU display */
+static void fimd_copy_line_toqemu(int width, uint8_t *src, uint8_t *dst)
+{
+ rgba p;
+
+ do {
+ src += get_pixel_ifb(src, &p);
+ dst += put_pixel_toqemu(p, dst);
+ } while (--width);
+}
+
+/* Parse BPPMODE_F = WINCON1[5:2] bits */
+static void exynos4210_fimd_update_win_bppmode(Exynos4210fimdState *s, int win)
+{
+ Exynos4210fimdWindow *w = &s->window[win];
+
+ if (w->winmap & FIMD_WINMAP_EN) {
+ w->draw_line = draw_line_mapcolor;
+ return;
+ }
+
+ switch (WIN_BPP_MODE(w)) {
+ case 0:
+ w->draw_line = draw_line_palette_1;
+ w->pixel_to_rgb =
+ palette_data_format[exynos4210_fimd_palette_format(s, win)];
+ break;
+ case 1:
+ w->draw_line = draw_line_palette_2;
+ w->pixel_to_rgb =
+ palette_data_format[exynos4210_fimd_palette_format(s, win)];
+ break;
+ case 2:
+ w->draw_line = draw_line_palette_4;
+ w->pixel_to_rgb =
+ palette_data_format[exynos4210_fimd_palette_format(s, win)];
+ break;
+ case 3:
+ w->draw_line = draw_line_palette_8;
+ w->pixel_to_rgb =
+ palette_data_format[exynos4210_fimd_palette_format(s, win)];
+ break;
+ case 4:
+ w->draw_line = draw_line_8;
+ w->pixel_to_rgb = pixel_a232_to_rgb;
+ break;
+ case 5:
+ w->draw_line = draw_line_16;
+ w->pixel_to_rgb = pixel_565_to_rgb;
+ break;
+ case 6:
+ w->draw_line = draw_line_16;
+ w->pixel_to_rgb = pixel_a555_to_rgb;
+ break;
+ case 7:
+ w->draw_line = draw_line_16;
+ w->pixel_to_rgb = pixel_1555_to_rgb;
+ break;
+ case 8:
+ w->draw_line = draw_line_32;
+ w->pixel_to_rgb = pixel_666_to_rgb;
+ break;
+ case 9:
+ w->draw_line = draw_line_32;
+ w->pixel_to_rgb = pixel_a665_to_rgb;
+ break;
+ case 10:
+ w->draw_line = draw_line_32;
+ w->pixel_to_rgb = pixel_a666_to_rgb;
+ break;
+ case 11:
+ w->draw_line = draw_line_32;
+ w->pixel_to_rgb = pixel_888_to_rgb;
+ break;
+ case 12:
+ w->draw_line = draw_line_32;
+ w->pixel_to_rgb = pixel_a887_to_rgb;
+ break;
+ case 13:
+ w->draw_line = draw_line_32;
+ if ((w->wincon & FIMD_WINCON_BLD_PIX) && (w->wincon &
+ FIMD_WINCON_ALPHA_SEL)) {
+ w->pixel_to_rgb = pixel_8888_to_rgb;
+ } else {
+ w->pixel_to_rgb = pixel_a888_to_rgb;
+ }
+ break;
+ case 14:
+ w->draw_line = draw_line_16;
+ if ((w->wincon & FIMD_WINCON_BLD_PIX) && (w->wincon &
+ FIMD_WINCON_ALPHA_SEL)) {
+ w->pixel_to_rgb = pixel_4444_to_rgb;
+ } else {
+ w->pixel_to_rgb = pixel_a444_to_rgb;
+ }
+ break;
+ case 15:
+ w->draw_line = draw_line_16;
+ w->pixel_to_rgb = pixel_555_to_rgb;
+ break;
+ }
+}
+
+#if EXYNOS4210_FIMD_MODE_TRACE > 0
+static const char *exynos4210_fimd_get_bppmode(int mode_code)
+{
+ switch (mode_code) {
+ case 0:
+ return "1 bpp";
+ case 1:
+ return "2 bpp";
+ case 2:
+ return "4 bpp";
+ case 3:
+ return "8 bpp (palletized)";
+ case 4:
+ return "8 bpp (non-palletized, A: 1-R:2-G:3-B:2)";
+ case 5:
+ return "16 bpp (non-palletized, R:5-G:6-B:5)";
+ case 6:
+ return "16 bpp (non-palletized, A:1-R:5-G:5-B:5)";
+ case 7:
+ return "16 bpp (non-palletized, I :1-R:5-G:5-B:5)";
+ case 8:
+ return "Unpacked 18 bpp (non-palletized, R:6-G:6-B:6)";
+ case 9:
+ return "Unpacked 18bpp (non-palletized,A:1-R:6-G:6-B:5)";
+ case 10:
+ return "Unpacked 19bpp (non-palletized,A:1-R:6-G:6-B:6)";
+ case 11:
+ return "Unpacked 24 bpp (non-palletized R:8-G:8-B:8)";
+ case 12:
+ return "Unpacked 24 bpp (non-palletized A:1-R:8-G:8-B:7)";
+ case 13:
+ return "Unpacked 25 bpp (non-palletized A:1-R:8-G:8-B:8)";
+ case 14:
+ return "Unpacked 13 bpp (non-palletized A:1-R:4-G:4-B:4)";
+ case 15:
+ return "Unpacked 15 bpp (non-palletized R:5-G:5-B:5)";
+ default:
+ return "Non-existing bpp mode";
+ }
+}
+
+static inline void exynos4210_fimd_trace_bppmode(Exynos4210fimdWindow *w,
+ int win_num, uint32_t val)
+{
+ if (((w->wincon >> FIMD_WINCON_BPPMODE_SHIFT) & FIMD_WINCON_BPPMODE) ==
+ ((val >> FIMD_WINCON_BPPMODE_SHIFT) & FIMD_WINCON_BPPMODE)) {
+ return;
+ }
+ printf("QEMU FIMD: Window %d BPP mode changed from %s to %s\n", win_num,
+ exynos4210_fimd_get_bppmode((w->wincon >> FIMD_WINCON_BPPMODE_SHIFT) &
+ FIMD_WINCON_BPPMODE),
+ exynos4210_fimd_get_bppmode((val >> FIMD_WINCON_BPPMODE_SHIFT) &
+ FIMD_WINCON_BPPMODE));
+}
+#else
+static inline void exynos4210_fimd_trace_bppmode(Exynos4210fimdWindow *w,
+ int win_num, uint32_t val)
+{
+
+}
+#endif
+
+static inline void exynos4210_fimd_enable(Exynos4210fimdState *s, bool enabled)
+{
+ s->enabled = enabled ? true : false;
+ DPRINT_TRACE("QEMU FIMD: display controller %s\n",
+ enabled ? "enabled" : "disabled");
+}
+
+static inline uint32_t unpack_upper_4(uint32_t x)
+{
+ return ((x & 0xF00) << 12) | ((x & 0xF0) << 8) | ((x & 0xF) << 4);
+}
+
+static inline uint32_t pack_upper_4(uint32_t x)
+{
+ return (((x & 0xF00000) >> 12) | ((x & 0xF000) >> 8) |
+ ((x & 0xF0) >> 4)) & 0xFFF;
+}
+
+static void exynos4210_fimd_update_irq(Exynos4210fimdState *s)
+{
+ if (!(s->vidintcon[0] & FIMD_VIDINT_INTEN)) {
+ qemu_irq_lower(s->irq[0]);
+ qemu_irq_lower(s->irq[1]);
+ qemu_irq_lower(s->irq[2]);
+ return;
+ }
+ if ((s->vidintcon[0] & FIMD_VIDINT_INTFIFOEN) &&
+ (s->vidintcon[1] & FIMD_VIDINT_INTFIFOPEND)) {
+ qemu_irq_raise(s->irq[0]);
+ } else {
+ qemu_irq_lower(s->irq[0]);
+ }
+ if ((s->vidintcon[0] & FIMD_VIDINT_INTFRMEN) &&
+ (s->vidintcon[1] & FIMD_VIDINT_INTFRMPEND)) {
+ qemu_irq_raise(s->irq[1]);
+ } else {
+ qemu_irq_lower(s->irq[1]);
+ }
+ if ((s->vidintcon[0] & FIMD_VIDINT_I80IFDONE) &&
+ (s->vidintcon[1] & FIMD_VIDINT_INTI80PEND)) {
+ qemu_irq_raise(s->irq[2]);
+ } else {
+ qemu_irq_lower(s->irq[2]);
+ }
+}
+
+static void exynos4210_update_resolution(Exynos4210fimdState *s)
+{
+ /* LCD resolution is stored in VIDEO TIME CONTROL REGISTER 2 */
+ uint32_t width = ((s->vidtcon[2] >> FIMD_VIDTCON2_HOR_SHIFT) &
+ FIMD_VIDTCON2_SIZE_MASK) + 1;
+ uint32_t height = ((s->vidtcon[2] >> FIMD_VIDTCON2_VER_SHIFT) &
+ FIMD_VIDTCON2_SIZE_MASK) + 1;
+
+ if (s->ifb == NULL || ds_get_width(s->console) != width ||
+ ds_get_height(s->console) != height) {
+ DPRINT_L1("Resolution changed from %ux%u to %ux%u\n",
+ ds_get_width(s->console), ds_get_height(s->console), width, height);
+ qemu_console_resize(s->console, width, height);
+ s->ifb = g_realloc(s->ifb, width * height * RGBA_SIZE + 1);
+ memset(s->ifb, 0, width * height * RGBA_SIZE + 1);
+ s->invalidate = true;
+ }
+}
+
+static inline int fimd_get_buffer_id(Exynos4210fimdWindow *w)
+{
+ switch (w->wincon & FIMD_WINCON_BUFSTATUS) {
+ case FIMD_WINCON_BUF0_STAT:
+ return 0;
+ case FIMD_WINCON_BUF1_STAT:
+ return 1;
+ case FIMD_WINCON_BUF2_STAT:
+ return 2;
+ default:
+ DPRINT_ERROR("Non-existent buffer index\n");
+ return 0;
+ }
+}
+
+static void exynos4210_fimd_update(void *opaque)
+{
+ Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+ int i, line;
+ target_phys_addr_t fb_start_addr, fb_line_end_addr, inc_size, fb_len, x;
+ int scrn_height;
+ int first_line = -1, last_line = -1, scrn_width;
+ bool blend = false;
+ uint8_t *host_fb_addr, *host_fb_start_addr;
+ bool is_dirty = false;
+ ram_addr_t pd;
+ const int global_width = (s->vidtcon[2] & FIMD_VIDTCON2_SIZE_MASK) + 1;
+ const int global_height = ((s->vidtcon[2] >> FIMD_VIDTCON2_VER_SHIFT) &
+ FIMD_VIDTCON2_SIZE_MASK) + 1;
+
+ if (!s || !s->console || !ds_get_bits_per_pixel(s->console)) {
+ return;
+ }
+
+ if (s->enabled == false) {
+ return;
+ }
+
+ exynos4210_update_resolution(s);
+
+ for (i = 0; i < NUM_OF_WINDOWS; i++) {
+ if ((s->window[i].wincon & FIMD_WINCON_ENWIN) &&
+ FIMD_WIN_NOT_PROTECTED(s, i)) {
+ scrn_height = s->window[i].rightbot_y - s->window[i].lefttop_y + 1;
+ scrn_width = s->window[i].virtpage_width;
+ fb_start_addr =
+ s->window[i].buf_start[fimd_get_buffer_id(&s->window[i])];
+ /* Total width of virtual screen page in bytes */
+ inc_size = scrn_width + s->window[i].virtpage_offsize;
+ /* Total number of bytes of virtual screen used by current window */
+ fb_len = inc_size * scrn_height;
+ cpu_physical_sync_dirty_bitmap(fb_start_addr,
+ fb_start_addr + fb_len);
+ host_fb_addr = cpu_physical_memory_map(fb_start_addr, &fb_len, 0);
+ if (!host_fb_addr) {
+ return;
+ }
+ if (fb_len != inc_size * scrn_height) {
+ cpu_physical_memory_unmap(host_fb_addr, fb_len, 0, 0);
+ return;
+ }
+
+ host_fb_start_addr = host_fb_addr;
+ for (line = 0; line < scrn_height; line++) {
+ fb_line_end_addr = fb_start_addr + scrn_width;
+ for (x = fb_start_addr; x < fb_line_end_addr;
+ x += TARGET_PAGE_SIZE) {
+ pd = (cpu_get_physical_page_desc(x) & TARGET_PAGE_MASK) +
+ (x & ~TARGET_PAGE_MASK);
+ is_dirty = is_dirty ||
+ cpu_physical_memory_get_dirty(pd, VGA_DIRTY_FLAG);
+ }
+
+ if (s->invalidate || is_dirty) {
+ if (first_line == -1) {
+ first_line = line;
+ }
+ last_line = line;
+ s->window[i].draw_line(&s->window[i], host_fb_addr,
+ s->ifb + s->window[i].lefttop_x * RGBA_SIZE +
+ (s->window[i].lefttop_y + line) * global_width
+ * RGBA_SIZE, blend);
+ }
+ host_fb_addr += inc_size;
+ is_dirty = false;
+ fb_start_addr += inc_size;
+ }
+ cpu_physical_memory_unmap(host_fb_start_addr, fb_len, 0, 0);
+ fb_start_addr =
+ s->window[i].buf_start[fimd_get_buffer_id(&s->window[i])];
+ pd = (cpu_get_physical_page_desc(fb_start_addr) & TARGET_PAGE_MASK)+
+ (fb_start_addr & ~TARGET_PAGE_MASK);
+ cpu_physical_memory_reset_dirty(pd, pd + inc_size * scrn_height,
+ VGA_DIRTY_FLAG);
+ blend = true;
+ }
+ }
+
+ /* Copy resulting image to QEMU_CONSOLE. */
+ if (first_line >= 0) {
+ uint8_t *d;
+ int bpp;
+
+ bpp = ds_get_bits_per_pixel(s->console);
+ fimd_update_putpix_qemu(bpp);
+ bpp = (bpp + 1) >> 3;
+ d = ds_get_data(s->console);
+ for (line = first_line; line < last_line; line++) {
+ fimd_copy_line_toqemu(global_width, s->ifb + global_width * line *
+ RGBA_SIZE, d + global_width * line * bpp);
+ }
+ dpy_update(s->console, 0, 0, global_width, global_height);
+ }
+ s->invalidate = false;
+ s->vidintcon[1] |= FIMD_VIDINT_INTFRMPEND;
+ if ((s->vidcon[0] & FIMD_VIDCON0_ENVID_F) == 0) {
+ exynos4210_fimd_enable(s, false);
+ }
+ exynos4210_fimd_update_irq(s);
+}
+
+static void exynos4210_fimd_invalidate(void *opaque)
+{
+ Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+ s->invalidate = true;
+}
+
+static void exynos4210_fimd_reset(DeviceState *d)
+{
+ Exynos4210fimdState *s = container_of(d, Exynos4210fimdState, busdev.qdev);
+ int i;
+ unsigned long begin =
+ (unsigned long)s + offsetof(Exynos4210fimdState, vidcon);
+ unsigned long len =
+ ((unsigned long)s + offsetof(Exynos4210fimdState, window)) - begin;
+ DPRINT_TRACE("Display controller reset\n");
+
+ /* Set all display controller registers to 0 */
+ memset((void *)begin, 0, len);
+ for (i = 0; i < NUM_OF_WINDOWS; i++) {
+ memset(&s->window[i], 0, sizeof(Exynos4210fimdWindow));
+ s->window[i].blendeq = 0xC2;
+ s->window[i].pixel_to_rgb = NULL;
+ s->window[i].draw_line = NULL;
+ }
+
+ if (s->ifb != NULL) {
+ g_free(s->ifb);
+ }
+ s->ifb = NULL;
+
+ s->invalidate = true;
+ exynos4210_fimd_enable(s, false);
+ /* Some registers have non-zero initial values */
+ s->winchmap = 0x7D517D51;
+ s->colorgaincon = 0x10040100;
+ s->huecoef_cr[0] = s->huecoef_cr[3] = 0x01000100;
+ s->huecoef_cb[0] = s->huecoef_cb[3] = 0x01000100;
+ s->hueoffset = 0x01800080;
+}
+
+static void exynos4210_fimd_write(void *opaque, target_phys_addr_t offset,
+ uint64_t val, unsigned size)
+{
+ Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+ int w, i;
+
+ DPRINT_L2("write offset 0x%08x, value=%ld(0x%08lx)\n", offset, val, val);
+
+ if (offset == FIMD_VIDCON0) {
+ if ((val & FIMD_VIDCON0_ENVID_MASK) == FIMD_VIDCON0_ENVID_MASK) {
+ exynos4210_fimd_enable(s, true);
+ } else {
+ if ((val & FIMD_VIDCON0_ENVID) == 0) {
+ exynos4210_fimd_enable(s, false);
+ }
+ }
+ s->vidcon[0] = val;
+ } else if (offset == FIMD_VIDCON1) {
+ /* Leave read-only bits as is */
+ val = (val & (~FIMD_VIDCON1_ROMASK)) |
+ (s->vidcon[1] & FIMD_VIDCON1_ROMASK);
+ s->vidcon[1] = val;
+ } else if (offset >= FIMD_VIDCON2 && offset <= FIMD_VIDCON3) {
+ s->vidcon[(offset) >> 2] = val;
+ } else if (offset >= FIMD_VIDTCON_START && offset <= FIMD_VIDTCON_END) {
+ s->vidtcon[(offset - FIMD_VIDTCON_START) >> 2] = val;
+ } else if (offset >= FIMD_WINCON_START && offset <= FIMD_WINCON_END) {
+ w = (offset - FIMD_WINCON_START) >> 2;
+ val = (val & ~FIMD_WINCON_ROMASK) |
+ (s->window[w].wincon & FIMD_WINCON_ROMASK);
+ if (w == 0) {
+ /* Window 0 wincon ALPHA_MUL bit must always be 0 */
+ val &= ~FIMD_WINCON_ALPHA_MUL;
+ }
+ exynos4210_fimd_trace_bppmode(&s->window[w], w, val);
+ switch (val & FIMD_WINCON_BUFSELECT) {
+ case FIMD_WINCON_BUF0_SEL:
+ val &= ~FIMD_WINCON_BUFSTATUS;
+ break;
+ case FIMD_WINCON_BUF1_SEL:
+ val = (val & ~FIMD_WINCON_BUFSTATUS_H) |
+ FIMD_WINCON_BUFSTATUS_L;
+ break;
+ case FIMD_WINCON_BUF2_SEL:
+ if (val & FIMD_WINCON_BUFMODE) {
+ val = (val & ~FIMD_WINCON_BUFSTATUS_L) |
+ FIMD_WINCON_BUFSTATUS_H;
+ }
+ break;
+ default:
+ break;
+ }
+ s->window[w].wincon = val;
+ exynos4210_fimd_update_win_bppmode(s, w);
+ fimd_update_get_alpha(s, w);
+ } else if (offset == FIMD_SHADOWCON) {
+ s->shadowcon = val;
+ } else if (offset == FIMD_WINCHMAP) {
+ s->winchmap = val;
+ } else if (offset >= FIMD_VIDOSD_START && offset <= FIMD_VIDOSD_END) {
+ w = (offset - FIMD_VIDOSD_START) >> 4;
+ i = ((offset - FIMD_VIDOSD_START) & 0xF) >> 2;
+ switch (i) {
+ case 0:
+ s->window[w].lefttop_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &
+ FIMD_VIDOSD_COORD_MASK;
+ s->window[w].lefttop_y = (val >> FIMD_VIDOSD_VER_SHIFT) &
+ FIMD_VIDOSD_COORD_MASK;
+ break;
+ case 1:
+ s->window[w].rightbot_x = (val >> FIMD_VIDOSD_HOR_SHIFT) &
+ FIMD_VIDOSD_COORD_MASK;
+ s->window[w].rightbot_y = (val >> FIMD_VIDOSD_VER_SHIFT) &
+ FIMD_VIDOSD_COORD_MASK;
+ break;
+ case 2:
+ if (w == 0) {
+ s->window[w].osdsize = val;
+ } else {
+ s->window[w].alpha_val[0] =
+ unpack_upper_4((val & FIMD_VIDOSD_ALPHA_AEN0) >>
+ FIMD_VIDOSD_AEN0_SHIFT) |
+ (s->window[w].alpha_val[0] & FIMD_VIDALPHA_ALPHA_LOWER);
+ s->window[w].alpha_val[1] =
+ unpack_upper_4(val & FIMD_VIDOSD_ALPHA_AEN1) |
+ (s->window[w].alpha_val[1] & FIMD_VIDALPHA_ALPHA_LOWER);
+ }
+ break;
+ case 3:
+ if (w != 1 && w != 2) {
+ DPRINT_ERROR("Bad write offset 0x%08x\n", offset);
+ return;
+ }
+ s->window[w].osdsize = val;
+ break;
+ }
+ } else if (offset >= FIMD_VIDWADD0_START && offset <= FIMD_VIDWADD0_END) {
+ w = (offset - FIMD_VIDWADD0_START) >> 3;
+ i = ((offset - FIMD_VIDWADD0_START) >> 2) & 1;
+ s->window[w].buf_start[i] = val;
+ } else if (offset >= FIMD_VIDWADD1_START && offset <= FIMD_VIDWADD1_END) {
+ w = (offset - FIMD_VIDWADD1_START) >> 3;
+ i = ((offset - FIMD_VIDWADD1_START) >> 2) & 1;
+ s->window[w].buf_end[i] = val;
+ } else if (offset >= FIMD_VIDWADD2_START && offset <= FIMD_VIDWADD2_END) {
+ w = (offset - FIMD_VIDWADD2_START) >> 2;
+ s->window[w].virtpage_width = val & FIMD_VIDWADD2_PAGEWIDTH;
+ s->window[w].virtpage_offsize = (val >> FIMD_VIDWADD2_OFFSIZE_SHIFT) &
+ FIMD_VIDWADD2_OFFSIZE;
+ } else if (offset == FIMD_VIDINTCON0) {
+ s->vidintcon[0] = val;
+ } else if (offset == FIMD_VIDINTCON1) {
+ s->vidintcon[1] &= ~(val & 7);
+ exynos4210_fimd_update_irq(s);
+ } else if (offset >= FIMD_WKEYCON_START && offset <= FIMD_WKEYCON_END) {
+ w = ((offset - FIMD_WKEYCON_START) >> 3) + 1;
+ i = ((offset - FIMD_WKEYCON_START) >> 2) & 1;
+ s->window[w].keycon[i] = val;
+ } else if (offset >= FIMD_WKEYALPHA_START && offset <= FIMD_WKEYALPHA_END) {
+ w = ((offset - FIMD_WKEYALPHA_START) >> 2) + 1;
+ s->window[w].keyalpha = val;
+ } else if (offset == FIMD_DITHMODE) {
+ s->dithmode = val;
+ } else if (offset >= FIMD_WINMAP_START && offset <= FIMD_WINMAP_END) {
+ w = (offset - FIMD_WINMAP_START) >> 2;
+ s->window[w].winmap = val;
+ if (val & FIMD_WINMAP_EN) {
+ s->invalidate = true;
+ exynos4210_fimd_update_win_bppmode(s, w);
+ exynos4210_fimd_update(s);
+ }
+ } else if (offset >= FIMD_WPALCON_HIGH && offset <= FIMD_WPALCON_LOW) {
+ i = (offset - FIMD_WPALCON_HIGH) >> 2;
+ s->wpalcon[i] = val;
+ if (s->wpalcon[1] & FIMD_WPALCON_UPDATEEN) {
+ for (w = 0; w < NUM_OF_WINDOWS; w++) {
+ exynos4210_fimd_update_win_bppmode(s, w);
+ fimd_update_get_alpha(s, w);
+ }
+ }
+ } else if (offset == FIMD_TRIGCON) {
+ val = (val & ~FIMD_TRIGCON_ROMASK) | (s->trigcon & FIMD_TRIGCON_ROMASK);
+ s->trigcon = val;
+ } else if (offset >= FIMD_I80IFCON_START && offset <= FIMD_I80IFCON_END) {
+ s->i80ifcon[(offset - FIMD_I80IFCON_START) >> 2] = val;
+ } else if (offset == FIMD_COLORGAINCON) {
+ s->colorgaincon = val;
+ } else if (offset >= FIMD_LDI_CMDCON0 && offset <= FIMD_LDI_CMDCON1) {
+ s->ldi_cmdcon[(offset - FIMD_LDI_CMDCON0) >> 2] = val;
+ } else if (offset >= FIMD_SIFCCON0 && offset <= FIMD_SIFCCON2) {
+ i = (offset - FIMD_SIFCCON0) >> 2;
+ if (i != 2) {
+ s->sifccon[i] = val;
+ }
+ } else if (offset >= FIMD_HUECOEFCR_START && offset <= FIMD_HUECOEFCR_END) {
+ i = (offset - FIMD_HUECOEFCR_START) >> 2;
+ s->huecoef_cr[i] = val;
+ } else if (offset >= FIMD_HUECOEFCB_START && offset <= FIMD_HUECOEFCB_END) {
+ i = (offset - FIMD_HUECOEFCB_START) >> 2;
+ s->huecoef_cb[i] = val;
+ } else if (offset == FIMD_HUEOFFSET) {
+ s->hueoffset = val;
+ } else if (offset >= FIMD_VIDWALPHA_START && offset <= FIMD_VIDWALPHA_END) {
+ w = ((offset - FIMD_VIDWALPHA_START) >> 3);
+ i = ((offset - FIMD_VIDWALPHA_START) >> 2) & 1;
+ if (w == 0) {
+ s->window[w].alpha_val[i] = val;
+ } else {
+ s->window[w].alpha_val[i] = (val & FIMD_VIDALPHA_ALPHA_LOWER) |
+ (s->window[w].alpha_val[i] & FIMD_VIDALPHA_ALPHA_UPPER);
+ }
+ } else if (offset >= FIMD_BLENDEQ_START && offset <= FIMD_BLENDEQ_END) {
+ s->window[(offset - FIMD_BLENDEQ_START) >> 2].blendeq = val;
+ } else if (offset == FIMD_BLENDCON) {
+ i = s->blendcon;
+ s->blendcon = (val & FIMD_ALPHA_8BIT) ? true : false;
+ if (s->blendcon != i) {
+ for (w = 0; w < NUM_OF_WINDOWS; w++) {
+ fimd_update_get_alpha(s, w);
+ }
+ }
+ } else if (offset >= FIMD_WRTQOSCON_START && offset <= FIMD_WRTQOSCON_END) {
+ s->window[(offset - FIMD_WRTQOSCON_START) >> 2].rtqoscon = val;
+ } else if (offset >= FIMD_I80IFCMD_START && offset <= FIMD_I80IFCMD_END) {
+ s->i80ifcmd[(offset - FIMD_I80IFCMD_START) >> 2] = val;
+ } else if (offset >= FIMD_SHD_ADD0_START && offset <= FIMD_SHD_ADD0_END) {
+ if (offset & 0x0004) {
+ DPRINT_ERROR("bad write offset 0x%08x\n", offset);
+ }
+ s->window[(offset - FIMD_SHD_ADD0_START) >> 3].shadow_buf_start = val;
+ } else if (offset >= FIMD_SHD_ADD1_START && offset <= FIMD_SHD_ADD1_END) {
+ if (offset & 0x0004) {
+ DPRINT_ERROR("bad write offset 0x%08x\n", offset);
+ }
+ s->window[(offset - FIMD_SHD_ADD1_START) >> 3].shadow_buf_end = val;
+ } else if (offset >= FIMD_SHD_ADD2_START && offset <= FIMD_SHD_ADD2_END) {
+ s->window[(offset - FIMD_SHD_ADD2_START) >> 2].shadow_buf_size = val;
+ } else if (offset >= FIMD_PAL_MEM_START && offset <= FIMD_PAL_MEM_END) {
+ w = (offset - FIMD_PAL_MEM_START) >> 10;
+ i = ((offset - FIMD_PAL_MEM_START) >> 2) & 0xFF;
+ s->window[w].palette[i] = val;
+ } else if (offset >= FIMD_PALMEM_AL_START && offset <= FIMD_PALMEM_AL_END) {
+ /* Palette memory aliases for windows 0 and 1 */
+ w = (offset - FIMD_PALMEM_AL_START) >> 10;
+ i = ((offset - FIMD_PALMEM_AL_START) >> 2) & 0xFF;
+ s->window[w].palette[i] = val;
+ } else {
+ DPRINT_ERROR("bad write offset 0x%08x\n", offset);
+ }
+}
+
+static uint64_t exynos4210_fimd_read(void *opaque, target_phys_addr_t offset,
+ unsigned size)
+{
+ Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+ int w, i;
+ uint32_t ret = 0;
+
+ DPRINT_L2("read offset 0x%08x\n", offset);
+
+ if (offset <= FIMD_VIDCON3) {
+ return s->vidcon[(offset) >> 2];
+ } else if (offset >= FIMD_VIDTCON_START && offset <= FIMD_VIDTCON_END) {
+ return s->vidtcon[(offset - FIMD_VIDTCON_START) >> 2];
+ } else if (offset >= FIMD_WINCON_START && offset <= FIMD_WINCON_END) {
+ return s->window[(offset - FIMD_WINCON_START) >> 2].wincon;
+ } else if (offset == FIMD_SHADOWCON) {
+ return s->shadowcon;
+ } else if (offset == FIMD_WINCHMAP) {
+ return s->winchmap;
+ } else if (offset >= FIMD_VIDOSD_START && offset <= FIMD_VIDOSD_END) {
+ w = (offset - FIMD_VIDOSD_START) >> 4;
+ i = ((offset - FIMD_VIDOSD_START) & 0xF) >> 2;
+ switch (i) {
+ case 0:
+ ret = ((s->window[w].lefttop_x & FIMD_VIDOSD_COORD_MASK) <<
+ FIMD_VIDOSD_HOR_SHIFT) |
+ (s->window[w].lefttop_y & FIMD_VIDOSD_COORD_MASK);
+ break;
+ case 1:
+ ret = ((s->window[w].rightbot_x & FIMD_VIDOSD_COORD_MASK) <<
+ FIMD_VIDOSD_HOR_SHIFT) |
+ (s->window[w].rightbot_y & FIMD_VIDOSD_COORD_MASK);
+ break;
+ case 2:
+ if (w == 0) {
+ ret = s->window[w].osdsize;
+ } else {
+ ret = (pack_upper_4(s->window[w].alpha_val[0]) <<
+ FIMD_VIDOSD_AEN0_SHIFT) |
+ pack_upper_4(s->window[w].alpha_val[1]);
+ }
+ break;
+ case 3:
+ if (w != 1 && w != 2) {
+ goto return_error;
+ }
+ ret = s->window[w].osdsize;
+ break;
+ }
+ return ret;
+ } else if (offset >= FIMD_VIDWADD0_START && offset <= FIMD_VIDWADD0_END) {
+ w = (offset - FIMD_VIDWADD0_START) >> 3;
+ i = ((offset - FIMD_VIDWADD0_START) >> 2) & 1;
+ return s->window[w].buf_start[i];
+ } else if (offset >= FIMD_VIDWADD1_START && offset <= FIMD_VIDWADD1_END) {
+ w = (offset - FIMD_VIDWADD1_START) >> 3;
+ i = ((offset - FIMD_VIDWADD1_START) >> 2) & 1;
+ return s->window[w].buf_end[i];
+ } else if (offset >= FIMD_VIDWADD2_START && offset <= FIMD_VIDWADD2_END) {
+ w = (offset - FIMD_VIDWADD2_START) >> 2;
+ return s->window[w].virtpage_width | (s->window[w].virtpage_offsize <<
+ FIMD_VIDWADD2_OFFSIZE_SHIFT);
+ } else if (offset >= FIMD_VIDINTCON0 && offset <= FIMD_VIDINTCON1) {
+ return s->vidintcon[(offset - FIMD_VIDINTCON0) >> 2];
+ } else if (offset >= FIMD_WKEYCON_START && offset <= FIMD_WKEYCON_END) {
+ w = ((offset - FIMD_WKEYCON_START) >> 3) + 1;
+ i = ((offset - FIMD_WKEYCON_START) >> 2) & 1;
+ return s->window[w].keycon[i];
+ } else if (offset >= FIMD_WKEYALPHA_START && offset <= FIMD_WKEYALPHA_END) {
+ w = ((offset - FIMD_WKEYALPHA_START) >> 2) + 1;
+ return s->window[w].keyalpha;
+ } else if (offset == FIMD_DITHMODE) {
+ return s->dithmode;
+ } else if (offset >= FIMD_WINMAP_START && offset <= FIMD_WINMAP_END) {
+ return s->window[(offset - FIMD_WINMAP_START) >> 2].winmap;
+ } else if (offset >= FIMD_WPALCON_HIGH && offset <= FIMD_WPALCON_LOW) {
+ return s->wpalcon[(offset - FIMD_WPALCON_HIGH) >> 2];
+ } else if (offset == FIMD_TRIGCON) {
+ return s->trigcon;
+ } else if (offset >= FIMD_I80IFCON_START && offset <= FIMD_I80IFCON_END) {
+ return s->i80ifcon[(offset - FIMD_I80IFCON_START) >> 2];
+ } else if (offset == FIMD_COLORGAINCON) {
+ return s->colorgaincon;
+ } else if (offset >= FIMD_LDI_CMDCON0 && offset <= FIMD_LDI_CMDCON1) {
+ return s->ldi_cmdcon[(offset - FIMD_LDI_CMDCON0) >> 2];
+ } else if (offset >= FIMD_SIFCCON0 && offset <= FIMD_SIFCCON2) {
+ i = (offset - FIMD_SIFCCON0) >> 2;
+ return s->sifccon[i];
+ } else if (offset >= FIMD_HUECOEFCR_START && offset <= FIMD_HUECOEFCR_END) {
+ i = (offset - FIMD_HUECOEFCR_START) >> 2;
+ return s->huecoef_cr[i];
+ } else if (offset >= FIMD_HUECOEFCB_START && offset <= FIMD_HUECOEFCB_END) {
+ i = (offset - FIMD_HUECOEFCB_START) >> 2;
+ return s->huecoef_cb[i];
+ } else if (offset == FIMD_HUEOFFSET) {
+ return s->hueoffset;
+ } else if (offset >= FIMD_VIDWALPHA_START && offset <= FIMD_VIDWALPHA_END) {
+ w = ((offset - FIMD_VIDWALPHA_START) >> 3);
+ i = ((offset - FIMD_VIDWALPHA_START) >> 2) & 1;
+ return s->window[w].alpha_val[i] &
+ (w == 0 ? 0xFFFFFF : FIMD_VIDALPHA_ALPHA_LOWER);
+ } else if (offset >= FIMD_BLENDEQ_START && offset <= FIMD_BLENDEQ_END) {
+ return s->window[(offset - FIMD_BLENDEQ_START) >> 2].blendeq;
+ } else if (offset == FIMD_BLENDCON) {
+ return (s->blendcon == true) ? 0x1 : 0x0;
+ } else if (offset >= FIMD_WRTQOSCON_START && offset <= FIMD_WRTQOSCON_END) {
+ return s->window[(offset - FIMD_WRTQOSCON_START) >> 2].rtqoscon;
+ } else if (offset >= FIMD_I80IFCMD_START && offset <= FIMD_I80IFCMD_END) {
+ return s->i80ifcmd[(offset - FIMD_I80IFCMD_START) >> 2];
+ } else if (offset >= FIMD_SHD_ADD0_START && offset <= FIMD_SHD_ADD0_END) {
+ if (offset & 0x0004) {
+ goto return_error;
+ }
+ return s->window[(offset - FIMD_SHD_ADD0_START) >> 3].shadow_buf_start;
+ } else if (offset >= FIMD_SHD_ADD1_START && offset <= FIMD_SHD_ADD1_END) {
+ if (offset & 0x0004) {
+ goto return_error;
+ }
+ return s->window[(offset - FIMD_SHD_ADD1_START) >> 3].shadow_buf_end;
+ } else if (offset >= FIMD_SHD_ADD2_START && offset <= FIMD_SHD_ADD2_END) {
+ return s->window[(offset - FIMD_SHD_ADD2_START) >> 2].shadow_buf_size;
+ } else if (offset >= FIMD_PAL_MEM_START && offset <= FIMD_PAL_MEM_END) {
+ w = (offset - FIMD_PAL_MEM_START) >> 10;
+ i = ((offset - FIMD_PAL_MEM_START) >> 2) & 0xFF;
+ return s->window[w].palette[i];
+ } else if (offset >= FIMD_PALMEM_AL_START && offset <= FIMD_PALMEM_AL_END) {
+ /* Palette aliases for win 0,1 */
+ w = (offset - FIMD_PALMEM_AL_START) >> 10;
+ i = ((offset - FIMD_PALMEM_AL_START) >> 2) & 0xFF;
+ return s->window[w].palette[i];
+ }
+return_error:
+ DPRINT_ERROR("bad read offset 0x%08x\n", offset);
+ return 0xBAADBAAD;
+}
+
+static const MemoryRegionOps exynos4210_fimd_mmio_ops = {
+ .read = exynos4210_fimd_read,
+ .write = exynos4210_fimd_write,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ .unaligned = false
+ },
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static int exynos4210_fimd_load(void *opaque, int version_id)
+{
+ Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+ int w;
+
+ if (version_id != 1) {
+ return -EINVAL;
+ }
+
+ for (w = 0; w < NUM_OF_WINDOWS; w++) {
+ exynos4210_fimd_update_win_bppmode(s, w);
+ fimd_update_get_alpha(s, w);
+ }
+
+ /* Redraw the whole screen */
+ exynos4210_update_resolution(s);
+ exynos4210_fimd_invalidate(s);
+ exynos4210_fimd_enable(s, (s->vidcon[0] & FIMD_VIDCON0_ENVID_MASK) ==
+ FIMD_VIDCON0_ENVID_MASK);
+ return 0;
+}
+
+static const VMStateDescription exynos4210_fimd_window_vmstate = {
+ .name = "exynos4210.fimd_window",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(wincon, Exynos4210fimdWindow),
+ VMSTATE_UINT32_ARRAY(buf_start, Exynos4210fimdWindow, 3),
+ VMSTATE_UINT32_ARRAY(buf_end, Exynos4210fimdWindow, 3),
+ VMSTATE_UINT32_ARRAY(keycon, Exynos4210fimdWindow, 2),
+ VMSTATE_UINT32(keyalpha, Exynos4210fimdWindow),
+ VMSTATE_UINT32(winmap, Exynos4210fimdWindow),
+ VMSTATE_UINT32(blendeq, Exynos4210fimdWindow),
+ VMSTATE_UINT32(rtqoscon, Exynos4210fimdWindow),
+ VMSTATE_UINT32_ARRAY(palette, Exynos4210fimdWindow, 256),
+ VMSTATE_UINT32(shadow_buf_start, Exynos4210fimdWindow),
+ VMSTATE_UINT32(shadow_buf_end, Exynos4210fimdWindow),
+ VMSTATE_UINT32(shadow_buf_size, Exynos4210fimdWindow),
+ VMSTATE_UINT16(lefttop_x, Exynos4210fimdWindow),
+ VMSTATE_UINT16(lefttop_y, Exynos4210fimdWindow),
+ VMSTATE_UINT16(rightbot_x, Exynos4210fimdWindow),
+ VMSTATE_UINT16(rightbot_y, Exynos4210fimdWindow),
+ VMSTATE_UINT32(osdsize, Exynos4210fimdWindow),
+ VMSTATE_UINT32_ARRAY(alpha_val, Exynos4210fimdWindow, 2),
+ VMSTATE_UINT16(virtpage_width, Exynos4210fimdWindow),
+ VMSTATE_UINT16(virtpage_offsize, Exynos4210fimdWindow),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const VMStateDescription exynos4210_fimd_vmstate = {
+ .name = "exynos4210.fimd",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .post_load = exynos4210_fimd_load,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(vidcon, Exynos4210fimdState, 4),
+ VMSTATE_UINT32_ARRAY(vidtcon, Exynos4210fimdState, 4),
+ VMSTATE_UINT32(shadowcon, Exynos4210fimdState),
+ VMSTATE_UINT32(winchmap, Exynos4210fimdState),
+ VMSTATE_UINT32_ARRAY(vidintcon, Exynos4210fimdState, 2),
+ VMSTATE_UINT32(dithmode, Exynos4210fimdState),
+ VMSTATE_UINT32_ARRAY(wpalcon, Exynos4210fimdState, 2),
+ VMSTATE_UINT32(trigcon, Exynos4210fimdState),
+ VMSTATE_UINT32_ARRAY(i80ifcon, Exynos4210fimdState, 4),
+ VMSTATE_UINT32(colorgaincon, Exynos4210fimdState),
+ VMSTATE_UINT32_ARRAY(ldi_cmdcon, Exynos4210fimdState, 2),
+ VMSTATE_UINT32_ARRAY(sifccon, Exynos4210fimdState, 3),
+ VMSTATE_UINT32_ARRAY(huecoef_cr, Exynos4210fimdState, 4),
+ VMSTATE_UINT32_ARRAY(huecoef_cb, Exynos4210fimdState, 4),
+ VMSTATE_UINT32(hueoffset, Exynos4210fimdState),
+ VMSTATE_UINT32_ARRAY(i80ifcmd, Exynos4210fimdState, 12),
+ VMSTATE_BOOL(blendcon, Exynos4210fimdState),
+ VMSTATE_STRUCT_ARRAY(window, Exynos4210fimdState, 5, 1,
+ exynos4210_fimd_window_vmstate, Exynos4210fimdWindow),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static int exynos4210_fimd_init(SysBusDevice *dev)
+{
+ Exynos4210fimdState *s = FROM_SYSBUS(Exynos4210fimdState, dev);
+
+ s->ifb = NULL;
+
+ sysbus_init_irq(dev, &s->irq[0]);
+ sysbus_init_irq(dev, &s->irq[1]);
+ sysbus_init_irq(dev, &s->irq[2]);
+
+ memory_region_init_io(&s->iomem, &exynos4210_fimd_mmio_ops, s,
+ "exynos4210.fimd", FIMD_REGS_SIZE);
+ sysbus_init_mmio(dev, &s->iomem);
+ s->console = graphic_console_init(exynos4210_fimd_update,
+ exynos4210_fimd_invalidate, NULL, NULL, s);
+
+ return 0;
+}
+
+static SysBusDeviceInfo exynos4210_fimd_info = {
+ .init = exynos4210_fimd_init,
+ .qdev.name = "exynos4210.fimd",
+ .qdev.size = sizeof(Exynos4210fimdState),
+ .qdev.vmsd = &exynos4210_fimd_vmstate,
+ .qdev.reset = exynos4210_fimd_reset,
+};
+
+static void exynos4210_fimd_register_devices(void)
+{
+ sysbus_register_withprop(&exynos4210_fimd_info);
+}
+
+device_init(exynos4210_fimd_register_devices)
--
1.7.4.1
^ permalink raw reply related [flat|nested] 25+ messages in thread* Re: [Qemu-devel] [PATCH v5 11/11] Exynos4210: added display controller implementation
2011-12-23 11:40 ` [Qemu-devel] [PATCH v5 11/11] Exynos4210: added display controller implementation Evgeny Voevodin
@ 2012-01-10 16:51 ` Peter Maydell
0 siblings, 0 replies; 25+ messages in thread
From: Peter Maydell @ 2012-01-10 16:51 UTC (permalink / raw)
To: Evgeny Voevodin
Cc: Mitsyanko Igor, qemu-devel, kyungmin.park, d.solodkiy, m.kozlov,
jehyung.lee
On 23 December 2011 11:40, Evgeny Voevodin <e.voevodin@samsung.com> wrote:
> +/* Perform byte/halfword/word swap of data according to WINCON */
> +static inline void fimd_swap_data(unsigned int swap_ctl, uint64_t *data)
> +{
> + int i;
> + uint64_t res;
> + uint64_t x = *data;
> +
> + if (swap_ctl & FIMD_WINCON_SWAP_BITS) {
> + res = 0;
> + for (i = 0; i < 64; i++) {
> + if (x & (1ULL << (64 - i))) {
> + res |= (1ULL << i);
> + }
> + }
> + x = res;
> + }
> + if (swap_ctl & FIMD_WINCON_SWAP_BYTE) {
> + x = ((x & 0x00000000000000FFULL) << 56) |
> + ((x & 0x000000000000FF00ULL) << 40) |
> + ((x & 0x0000000000FF0000ULL) << 24) |
> + ((x & 0x00000000FF000000ULL) << 8) |
> + ((x & 0x000000FF00000000ULL) >> 8) |
> + ((x & 0x0000FF0000000000ULL) >> 24) |
> + ((x & 0x00FF000000000000ULL) >> 40) |
> + ((x & 0xFF00000000000000ULL) >> 56);
> + }
> + if (swap_ctl & FIMD_WINCON_SWAP_HWORD) {
> + x = ((x & 0x000000000000FFFFULL) << 48) |
> + ((x & 0x00000000FFFF0000ULL) << 16) |
> + ((x & 0x0000FFFF00000000ULL) >> 16) |
> + ((x & 0xFFFF000000000000ULL) >> 48);
> + }
> + if (swap_ctl & FIMD_WINCON_SWAP_WORD) {
> + x = ((x & 0x00000000FFFFFFFFULL) << 32) |
> + ((x & 0xFFFFFFFF00000000ULL) >> 32);
> + }
bswap.h provides bswap_64() which you can use for the first of these.
> +/* Draw line with index in palette table in RAM frame buffer data */
> +#define DEF_DRAW_LINE_PALLETE(N) \
> +static void glue(draw_line_palette_, N)(Exynos4210fimdWindow *w, uint8_t *src, \
> + uint8_t *dst, bool blend) \
The comment and the parameter are correct about the spelling of 'palette';
please fix the macro name.
exynos4210_fimd_get_bppmode() has the same typo -- global search-n-replace
seems like a good idea.
> +static void exynos4210_fimd_write(void *opaque, target_phys_addr_t offset,
> + uint64_t val, unsigned size)
> +{
> + Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
> + int w, i;
> +
> + DPRINT_L2("write offset 0x%08x, value=%ld(0x%08lx)\n", offset, val, val);
> +
> + if (offset == FIMD_VIDCON0) {
> + if ((val & FIMD_VIDCON0_ENVID_MASK) == FIMD_VIDCON0_ENVID_MASK) {
> + exynos4210_fimd_enable(s, true);
> + } else {
> + if ((val & FIMD_VIDCON0_ENVID) == 0) {
> + exynos4210_fimd_enable(s, false);
> + }
> + }
> + s->vidcon[0] = val;
> + } else if (offset == FIMD_VIDCON1) {
is using an if-else ladder here rather than a switch statement a deliberate
decision ?
Otherwise looks OK I guess, though I've only scanned it rather superficially.
-- PMM
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