From 574b1009a64f8cb53a16aa43c28694486efb8455 Mon Sep 17 00:00:00 2001
From: Catalin Patulea <cat@vv.carleton.ca>
Date: Fri, 2 Nov 2007 05:07:52 +0000
Subject: m:robe 500i port: Add support for the backlight client in the SPI
 subsystem

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15402 a1c6a512-1295-4272-9138-f99709370657
---
 bootloader/mrobe500.c                        |  7 +++++++
 firmware/target/arm/tms320dm320/spi-dm320.c  | 10 ++++++----
 firmware/target/arm/tms320dm320/spi-target.h |  1 +
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/bootloader/mrobe500.c b/bootloader/mrobe500.c
index 5817052499..34814ba8d5 100755
--- a/bootloader/mrobe500.c
+++ b/bootloader/mrobe500.c
@@ -98,6 +98,9 @@ void touchpad_calibrate_screen(void)
     set_calibration_points(&tl, &br);
 }
 #endif
+static const uint8_t bl_low [] = {0xa4, 0x00, 0x55, 0xbb};
+static const uint8_t bl_high[] = {0xa4, 0x00, 0x19, 0xbb};
+
 void mrdebug(void)
 {
     int button=0, *address=0x0;
@@ -127,6 +130,10 @@ void mrdebug(void)
             address+=0x1000;
         else if (button==BUTTON_RC_REW)
             address-=0x1000;
+        else if (button==BUTTON_RC_VOL_DOWN)
+            spi_block_transfer(SPI_target_BACKLIGHT, bl_low, 4, 0, 0);
+        else if (button==BUTTON_RC_VOL_UP)
+            spi_block_transfer(SPI_target_BACKLIGHT, bl_high, 4, 0, 0);
 //         {
 //             short x,y,z1,z2;
 //             tsc2100_read_values(&x, &y, &z1, &z2);
diff --git a/firmware/target/arm/tms320dm320/spi-dm320.c b/firmware/target/arm/tms320dm320/spi-dm320.c
index f80c3884fc..f3b41add54 100644
--- a/firmware/target/arm/tms320dm320/spi-dm320.c
+++ b/firmware/target/arm/tms320dm320/spi-dm320.c
@@ -30,6 +30,7 @@
 
 #define GIO_TS_ENABLE  (1<<2)
 #define GIO_RTC_ENABLE (1<<12)
+#define GIO_BL_ENABLE  (1<<13)
 
 struct spinlock spi_lock;
 
@@ -41,8 +42,9 @@ struct SPI_info {
 #define reg(a) ((volatile unsigned short *)(PHY_IO_BASE+a))
 struct SPI_info spi_targets[] =
 {
-    [SPI_target_TSC2100]   = { reg(0x0594), reg(0x058E), GIO_TS_ENABLE },
-    [SPI_target_RX5X348AB] = { reg(0x058C), reg(0x0592), GIO_RTC_ENABLE },
+    [SPI_target_TSC2100]   = { &IO_GIO_BITCLR1, &IO_GIO_BITSET1, GIO_TS_ENABLE },
+    [SPI_target_RX5X348AB] = { &IO_GIO_BITSET0, &IO_GIO_BITCLR0, GIO_RTC_ENABLE },
+    [SPI_target_BACKLIGHT] = { &IO_GIO_BITCLR1, &IO_GIO_BITSET1, GIO_BL_ENABLE },
 };
 
 static void spi_disable_all_targets(void)
@@ -92,8 +94,8 @@ int spi_block_transfer(enum SPI_target target,
 void spi_init(void)
 {
     spinlock_init(&spi_lock);
-    /* Set SCLK idle level = 1 */
-    IO_SERIAL0_MODE &= ~(1<<10);
+    /* Set SCLK idle level = 0 */
+    IO_SERIAL0_MODE |= 1<<10;
     /* Enable TX */
     IO_SERIAL0_TX_ENABLE = 0x0001;
 
diff --git a/firmware/target/arm/tms320dm320/spi-target.h b/firmware/target/arm/tms320dm320/spi-target.h
index 7123fc1c05..fe229d8bda 100644
--- a/firmware/target/arm/tms320dm320/spi-target.h
+++ b/firmware/target/arm/tms320dm320/spi-target.h
@@ -26,6 +26,7 @@
 enum SPI_target {
     SPI_target_TSC2100 = 0,
     SPI_target_RX5X348AB,
+    SPI_target_BACKLIGHT,
     SPI_MAX_TARGETS,
 };
 
-- 
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