[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/drivers/ide/ide-h8300.c b/ap/os/linux/linux-3.4.x/drivers/ide/ide-h8300.c
new file mode 100644
index 0000000..520f42c
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/ide/ide-h8300.c
@@ -0,0 +1,109 @@
+/*
+ * H8/300 generic IDE interface
+ */
+
+#include <linux/init.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#define DRV_NAME "ide-h8300"
+
+#define bswap(d) \
+({ \
+ u16 r; \
+ __asm__("mov.b %w1,r1h\n\t" \
+ "mov.b %x1,r1l\n\t" \
+ "mov.w r1,%0" \
+ :"=r"(r) \
+ :"r"(d) \
+ :"er1"); \
+ (r); \
+})
+
+static void mm_outsw(unsigned long addr, void *buf, u32 len)
+{
+ unsigned short *bp = (unsigned short *)buf;
+ for (; len > 0; len--, bp++)
+ *(volatile u16 *)addr = bswap(*bp);
+}
+
+static void mm_insw(unsigned long addr, void *buf, u32 len)
+{
+ unsigned short *bp = (unsigned short *)buf;
+ for (; len > 0; len--, bp++)
+ *bp = bswap(*(volatile u16 *)addr);
+}
+
+static void h8300_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
+ void *buf, unsigned int len)
+{
+ mm_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
+}
+
+static void h8300_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
+ void *buf, unsigned int len)
+{
+ mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
+}
+
+static const struct ide_tp_ops h8300_tp_ops = {
+ .exec_command = ide_exec_command,
+ .read_status = ide_read_status,
+ .read_altstatus = ide_read_altstatus,
+ .write_devctl = ide_write_devctl,
+
+ .dev_select = ide_dev_select,
+ .tf_load = ide_tf_load,
+ .tf_read = ide_tf_read,
+
+ .input_data = h8300_input_data,
+ .output_data = h8300_output_data,
+};
+
+#define H8300_IDE_GAP (2)
+
+static inline void hw_setup(struct ide_hw *hw)
+{
+ int i;
+
+ memset(hw, 0, sizeof(*hw));
+ for (i = 0; i <= 7; i++)
+ hw->io_ports_array[i] = CONFIG_H8300_IDE_BASE + H8300_IDE_GAP*i;
+ hw->io_ports.ctl_addr = CONFIG_H8300_IDE_ALT;
+ hw->irq = EXT_IRQ0 + CONFIG_H8300_IDE_IRQ;
+}
+
+static const struct ide_port_info h8300_port_info = {
+ .tp_ops = &h8300_tp_ops,
+ .host_flags = IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_NO_DMA,
+ .chipset = ide_generic,
+};
+
+static int __init h8300_ide_init(void)
+{
+ struct ide_hw hw, *hws[] = { &hw };
+
+ printk(KERN_INFO DRV_NAME ": H8/300 generic IDE interface\n");
+
+ if (!request_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8, "ide-h8300"))
+ goto out_busy;
+ if (!request_region(CONFIG_H8300_IDE_ALT, H8300_IDE_GAP, "ide-h8300")) {
+ release_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8);
+ goto out_busy;
+ }
+
+ hw_setup(&hw);
+
+ return ide_host_add(&h8300_port_info, hws, 1, NULL);
+
+out_busy:
+ printk(KERN_ERR "ide-h8300: IDE I/F resource already used.\n");
+
+ return -EBUSY;
+}
+
+module_init(h8300_ide_init);
+
+MODULE_LICENSE("GPL");