From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56301) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZroCT-0008MS-Dg for qemu-devel@nongnu.org; Thu, 29 Oct 2015 10:29:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZroCR-0000KJ-Cu for qemu-devel@nongnu.org; Thu, 29 Oct 2015 10:29:09 -0400 Received: from mail-pa0-x22a.google.com ([2607:f8b0:400e:c03::22a]:36336) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZroCR-0000K7-5M for qemu-devel@nongnu.org; Thu, 29 Oct 2015 10:29:07 -0400 Received: by pacfv9 with SMTP id fv9so44362162pac.3 for ; Thu, 29 Oct 2015 07:29:06 -0700 (PDT) From: Shannon Zhao Date: Thu, 29 Oct 2015 22:27:31 +0800 Message-Id: <1446128855-26637-5-git-send-email-shannon.zhao@linaro.org> In-Reply-To: <1446128855-26637-1-git-send-email-shannon.zhao@linaro.org> References: <1446128855-26637-1-git-send-email-shannon.zhao@linaro.org> Subject: [Qemu-devel] [PATCH v2 4/8] hw/acpi/aml-build: Add GPIO Connection Descriptor List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, peter.maydell@linaro.org, mst@redhat.com, imammedo@redhat.com Cc: zhaoshenglong@huawei.com, peter.huangpeng@huawei.com, shannon.zhao@linaro.org Signed-off-by: Shannon Zhao Signed-off-by: Shannon Zhao --- hw/acpi/aml-build.c | 61 +++++++++++++++++++++++++++++++++++++++++++++ include/hw/acpi/aml-build.h | 20 +++++++++++++++ 2 files changed, 81 insertions(+) diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 0d4b324..250941f 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -565,6 +565,67 @@ Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4) } /* + * ACPI 5.0: 6.4.3.8.1 GPIO Connection Descriptor + * Type 1, Large Item Name 0xC + */ + +static Aml *aml_gpio_connection(AmlGpioConnectionType type, + AmlConsumerAndProducer con_and_pro, + uint8_t flags, AmlPinConfig pin_cfg, + int16_t output_drive, int16_t debounce_timeout, + int32_t pin_num[], int32_t pin_count, + const char *name, const char *vendor_data) +{ + Aml *var = aml_alloc(); + uint16_t name_len = name ? (strlen(name) + 1) : 0; + uint16_t vendor_data_len = vendor_data ? (strlen(vendor_data) + 1) : 0; + uint16_t length = 0x16 + name_len + vendor_data_len; + uint16_t name_offset = 0x17 + pin_count * 2; + uint16_t vendor_data_offset = name_offset + name_len; + int i; + + build_append_byte(var->buf, 0x8C); /* GpioInt Resource Descriptor */ + build_append_int_noprefix(var->buf, length, 2); /* Length */ + build_append_byte(var->buf, 1); /* Revision ID */ + build_append_byte(var->buf, type); /* GPIO Connection Type */ + /* General Flags (2 bytes) */ + build_append_int_noprefix(var->buf, con_and_pro, 2); + /* Interrupt and IO Flags (2 bytes) */ + build_append_int_noprefix(var->buf, flags, 2); + /* Pin Configuration 0 = Default 1 = Pull-up 2 = Pull-down 3 = No Pull */ + build_append_byte(var->buf, pin_cfg); + /* Output Drive Strength (2 bytes) */ + build_append_int_noprefix(var->buf, output_drive, 2); + /* Debounce Timeout (2 bytes) */ + build_append_int_noprefix(var->buf, debounce_timeout, 2); + /* Pin Table Offset (2 bytes) */ + build_append_int_noprefix(var->buf, 0x17, 2); + build_append_byte(var->buf, 0); /* Resource Source Index */ + /* Resource Source Name Offset (2 bytes) */ + build_append_int_noprefix(var->buf, name_offset, 2); + /* Vendor Data Offset (2 bytes) */ + build_append_int_noprefix(var->buf, vendor_data_offset, 2); + /* Vendor Data Length (2 bytes) */ + build_append_int_noprefix(var->buf, vendor_data_len, 2); + /* Pin Number (2n bytes)*/ + for (i = 0; i < pin_count; i++) { + build_append_int_noprefix(var->buf, pin_num[i], 2); + } + /* Resource Source Name */ + if (name != NULL) { + build_append_namestring(var->buf, "%s", name); + build_append_byte(var->buf, '\0'); + } + /* Vendor-defined Data */ + if (vendor_data != NULL) { + build_append_namestring(var->buf, "%s", vendor_data); + build_append_byte(var->buf, '\0'); + } + + return var; +} + +/* * ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor * (Type 1, Large Item Name 0x6) */ diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h index 1b632dc..4e88882 100644 --- a/include/hw/acpi/aml-build.h +++ b/include/hw/acpi/aml-build.h @@ -148,6 +148,26 @@ typedef enum { AML_SHARED_AND_WAKE = 3, } AmlShared; +/* + * ACPI 5.0: Table 6-189 GPIO Connection Descriptor Definition + * GPIO Connection Type + */ +typedef enum { + AML_INTERRUPT_CONNECTION = 0, + AML_IO_CONNECTION = 1, +} AmlGpioConnectionType; + +/* + * ACPI 5.0: Table 6-189 GPIO Connection Descriptor Definition + * _PPI field definition + */ +typedef enum { + AML_DEFAULT_CONFIG = 0, + AML_PULL_UP = 1, + AML_PULL_DOWN = 2, + AML_NO_PULL = 3, +} AmlPinConfig; + typedef struct AcpiBuildTables { GArray *table_data; -- 2.1.0