[Qemu-devel] [PATCH 5/5] omap_i2c: convert to memory API

["Benoît Canet" <benoit.canet@gmail.com>]

Signed-off-by: Benoît Canet <benoit.canet@gmail.com>
---
 hw/omap.h     |    7 +++++--
 hw/omap1.c    |    2 +-
 hw/omap_i2c.c |   45 +++++++++++++++++++++++++--------------------
 3 files changed, 31 insertions(+), 23 deletions(-)

diff --git a/hw/omap.h b/hw/omap.h
index 837c73f..7ca8a42 100644
--- a/hw/omap.h
+++ b/hw/omap.h
@@ -770,8 +770,11 @@ void omap_mmc_enable(struct omap_mmc_s *s, int enable);
 
 /* omap_i2c.c */
 struct omap_i2c_s;
-struct omap_i2c_s *omap_i2c_init(target_phys_addr_t base,
-                qemu_irq irq, qemu_irq *dma, omap_clk clk);
+struct omap_i2c_s *omap_i2c_init(MemoryRegion *sysmem,
+                                 target_phys_addr_t base,
+                                 qemu_irq irq,
+                                 qemu_irq *dma,
+                                 omap_clk clk);
 struct omap_i2c_s *omap2_i2c_init(struct omap_target_agent_s *ta,
                 qemu_irq irq, qemu_irq *dma, omap_clk fclk, omap_clk iclk);
 void omap_i2c_reset(struct omap_i2c_s *s);
diff --git a/hw/omap1.c b/hw/omap1.c
index f985f8d..53cde76 100644
--- a/hw/omap1.c
+++ b/hw/omap1.c
@@ -3964,7 +3964,7 @@ struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory,
     omap_pwl_init(system_memory, 0xfffb5800, s, omap_findclk(s, "armxor_ck"));
     omap_pwt_init(system_memory, 0xfffb6000, s, omap_findclk(s, "armxor_ck"));
 
-    s->i2c[0] = omap_i2c_init(0xfffb3800,
+    s->i2c[0] = omap_i2c_init(system_memory, 0xfffb3800,
                               qdev_get_gpio_in(s->ih[1], OMAP_INT_I2C),
                     &s->drq[OMAP_DMA_I2C_RX], omap_findclk(s, "mpuper_ck"));
 
diff --git a/hw/omap_i2c.c b/hw/omap_i2c.c
index 52c38ba..ca875f6 100644
--- a/hw/omap_i2c.c
+++ b/hw/omap_i2c.c
@@ -21,6 +21,7 @@
 #include "omap.h"
 
 struct omap_i2c_s {
+    MemoryRegion iomem;
     qemu_irq irq;
     qemu_irq drq[2];
     i2c_bus *bus;
@@ -409,22 +410,28 @@ static void omap_i2c_writeb(void *opaque, target_phys_addr_t addr,
     }
 }
 
-static CPUReadMemoryFunc * const omap_i2c_readfn[] = {
-    omap_badwidth_read16,
-    omap_i2c_read,
-    omap_badwidth_read16,
+static const MemoryRegionOps omap_i2c_ops = {
+    .old_mmio = {
+        .read = {
+            omap_badwidth_read16,
+            omap_i2c_read,
+            omap_badwidth_read16,
+        },
+        .write = {
+            omap_i2c_writeb, /* Only the last fifo write can be 8 bit.  */
+            omap_i2c_write,
+            omap_badwidth_write16,
+        },
+    },
+    .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static CPUWriteMemoryFunc * const omap_i2c_writefn[] = {
-    omap_i2c_writeb,	/* Only the last fifo write can be 8 bit.  */
-    omap_i2c_write,
-    omap_badwidth_write16,
-};
-
-struct omap_i2c_s *omap_i2c_init(target_phys_addr_t base,
-                qemu_irq irq, qemu_irq *dma, omap_clk clk)
+struct omap_i2c_s *omap_i2c_init(MemoryRegion *sysmem,
+                                 target_phys_addr_t base,
+                                 qemu_irq irq,
+                                 qemu_irq *dma,
+                                 omap_clk clk)
 {
-    int iomemtype;
     struct omap_i2c_s *s = (struct omap_i2c_s *)
             g_malloc0(sizeof(struct omap_i2c_s));
 
@@ -436,9 +443,8 @@ struct omap_i2c_s *omap_i2c_init(target_phys_addr_t base,
     s->bus = i2c_init_bus(NULL, "i2c");
     omap_i2c_reset(s);
 
-    iomemtype = cpu_register_io_memory(omap_i2c_readfn,
-                    omap_i2c_writefn, s, DEVICE_NATIVE_ENDIAN);
-    cpu_register_physical_memory(base, 0x800, iomemtype);
+    memory_region_init_io(&s->iomem, &omap_i2c_ops, s, "omap.i2c", 0x800);
+    memory_region_add_subregion(sysmem, base, &s->iomem);
 
     return s;
 }
@@ -446,7 +452,6 @@ struct omap_i2c_s *omap_i2c_init(target_phys_addr_t base,
 struct omap_i2c_s *omap2_i2c_init(struct omap_target_agent_s *ta,
                 qemu_irq irq, qemu_irq *dma, omap_clk fclk, omap_clk iclk)
 {
-    int iomemtype;
     struct omap_i2c_s *s = (struct omap_i2c_s *)
             g_malloc0(sizeof(struct omap_i2c_s));
 
@@ -457,9 +462,9 @@ struct omap_i2c_s *omap2_i2c_init(struct omap_target_agent_s *ta,
     s->bus = i2c_init_bus(NULL, "i2c");
     omap_i2c_reset(s);
 
-    iomemtype = cpu_register_io_memory(omap_i2c_readfn,
-                    omap_i2c_writefn, s, DEVICE_NATIVE_ENDIAN);
-    omap_l4_attach(ta, 0, iomemtype);
+    memory_region_init_io(&s->iomem, &omap_i2c_ops, s, "omap2.i2c",
+                          omap_l4_region_size(ta, 0));
+    omap_l4_attach_region(ta, 0, &s->iomem);
 
     return s;
 }
-- 
1.7.7.3