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https://github.com/Rockbox/rockbox.git
synced 2025-12-08 12:45:26 -05:00
Add information gleaned from disassembling the main firmware image. Detect lcd type in use. Still no actual output
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21929 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Robert Keevil
parent
f2f9031f4f
commit
a0d630f3de
2 changed files with 100 additions and 75 deletions
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@ -28,4 +28,15 @@
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#undef DRAM_START
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#define DRAM_START 0x10f00000
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#define GPIOM_ENABLE (*(volatile unsigned long *)(0x6000d180))
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#define GPIOM_OUTPUT_EN (*(volatile unsigned long *)(0x6000d190))
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#define GPIOM_OUTPUT_VAL (*(volatile unsigned long *)(0x6000d1a0))
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#define GPIOM_INPUT_VAL (*(volatile unsigned long *)(0x6000d1b0))
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#define GPIOM_INT_STAT (*(volatile unsigned long *)(0x6000d1c0))
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#define GPIOM_INT_EN (*(volatile unsigned long *)(0x6000d1d0))
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#define GPIOM_INT_LEV (*(volatile unsigned long *)(0x6000d1e0))
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#define GPIOM_INT_CLR (*(volatile unsigned long *)(0x6000d1f0))
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#define GPIOM 12
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#endif
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@ -32,6 +32,7 @@
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static bool power_on = false; /* Is the power turned on? */
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static bool display_on SHAREDBSS_ATTR = false; /* Is the display turned on? */
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static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
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static int lcd_type;
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#define LCD_DATA_OUT_GPIO GPIOH_OUTPUT_VAL
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#define LCD_DATA_OUT_PIN 4
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@ -45,43 +46,49 @@ static unsigned lcd_yuv_options SHAREDBSS_ATTR = 0;
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#ifdef BOOTLOADER
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static void lcd_init_gpio(void)
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{
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// OF: 0x5CC8
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/* BOOT: 0x5CC8
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OF: 0x88284 */
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outl(inl(0x70000010) | 0xFC000000, 0x70000010);
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outl(inl(0x70000014) | 0xC300000, 0x70000014);
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GPIOE_ENABLE = 0;
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/* TODO: check GPIOM exists and isn't just atomic access */
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/* GPIOM_ENABLE &= ~0x3; */
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GPIOJ_ENABLE &= ~0x1a;
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GPIOB_ENABLE &= ~0x8;
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GPIOE_ENABLE = 0;
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GPIOM_ENABLE &= ~0x3;
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GPIOF_ENABLE = 0;
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GPIOJ_ENABLE &= ~0x1a;
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GPIOB_ENABLE &= ~0x8;
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GPIOH_OUTPUT_VAL |= 0x80;
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GPIOH_OUTPUT_EN |= 0x80;
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GPIOH_ENABLE |= 0x80;
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GPIOH_OUTPUT_EN |= 0x80;
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GPIOH_ENABLE |= 0x80;
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GPIOH_OUTPUT_VAL |= 0x40;
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GPIOH_OUTPUT_EN |= 0x40;
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GPIOH_ENABLE |= 0x40;
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GPIOH_OUTPUT_EN |= 0x40;
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GPIOH_ENABLE |= 0x40;
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GPIOH_OUTPUT_VAL |= 0x20;
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GPIOH_OUTPUT_EN |= 0x20;
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GPIOH_ENABLE |= 0x20;
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GPIOH_OUTPUT_EN |= 0x20;
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GPIOH_ENABLE |= 0x20;
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GPIOH_OUTPUT_VAL |= 0x10;
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GPIOH_OUTPUT_EN |= 0x10;
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GPIOH_ENABLE |= 0x10;
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// GPIOD_OUTOUT_VAL &= ~0x1; //backlight on
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// GPIOD_ENABLE |= 0x1;
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GPIOH_OUTPUT_EN |= 0x10;
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GPIOH_ENABLE |= 0x10;
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GPIOD_OUTPUT_VAL |= 0x1; /* backlight on */
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GPIOD_ENABLE |= 0x1;
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GPIOB_OUTPUT_VAL |= 0x4;
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GPIOB_ENABLE |= 0x4;
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GPIOB_OUTPUT_EN |= 0x4;
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GPIOG_ENABLE |= 0x8;
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GPIOG_OUTPUT_EN &= ~0x8;
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GPIOB_ENABLE |= 0x4;
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GPIOB_OUTPUT_EN |= 0x4;
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DEV_INIT2 = 0x40000000;
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GPIOG_ENABLE |= 0x8;
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GPIOG_OUTPUT_EN &= ~0x8;
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// more to add here...
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if (GPIOG_INPUT_VAL & 0x8)
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lcd_type = 1;
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else
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lcd_type = 0;
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}
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#endif
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static void lcd_send_msg(unsigned char count, unsigned int data)
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{
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// OF: 0x645C
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/* BOOT: 0x645C
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OF: 0x88E90 */
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int i;
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LCD_CLOCK_GPIO |= (1 << LCD_CLOCK_PIN);
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@ -89,13 +96,11 @@ static void lcd_send_msg(unsigned char count, unsigned int data)
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for (i = count - 1; i >= 0; i--)
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{
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if (data & (1 << count))
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if (data & (1 << i))
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{
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// LCD_DATA_OUT_GPIO &= ~(1 << LCD_DATA_OUT_PIN);
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LCD_DATA_OUT_GPIO |= (1 << LCD_DATA_OUT_PIN);
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} else {
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// LCD_DATA_OUT_GPIO |= (1 << LCD_DATA_OUT_PIN);
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LCD_DATA_OUT_GPIO &= ~(1 << LCD_DATA_OUT_PIN);
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} else {
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LCD_DATA_OUT_GPIO |= (1 << LCD_DATA_OUT_PIN);
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}
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LCD_CLOCK_GPIO &= ~(1 << LCD_CLOCK_PIN);
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udelay(1);
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@ -152,9 +157,23 @@ static void lcd_write_reg(unsigned int cmd, unsigned int data)
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lcd_write_info(data);
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}
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void lcd_reset(void)
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{
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/* BOOT: 0x623C
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OF: 0x88BDC */
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GPIOB_OUTPUT_VAL |= 0x4;
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udelay(1000);
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GPIOB_OUTPUT_VAL &= ~0x4;
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udelay(10000);
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GPIOB_OUTPUT_VAL |= 0x4;
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udelay(50000);
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}
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/* Run the powerup sequence for the driver IC */
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static void lcd_power_on(void)
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{
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lcd_reset();
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/* OF: 0x5DC0 *
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* r2: cmd *
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* r3: data */
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@ -180,28 +199,10 @@ static void lcd_power_on(void)
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lcd_write_reg(0x12, 0x13c);
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sleep(HZ/20);
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// OF: BNE 0x5fb2
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/* BOOT: BNE 0x5fb2 */
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// two different models in use?!?
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if (1)
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if (lcd_type == 0)
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{
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lcd_write_reg(0x13, 0x1800);
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lcd_write_reg(0x29, 0x13);
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sleep(HZ/10);
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lcd_write_reg(0x20, 0x0);
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lcd_write_reg(0x21, 0x0);
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lcd_write_reg(0x30, 0x2);
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lcd_write_reg(0x31, 0xF07); // 0x37 option in other controller
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lcd_write_reg(0x32, 0x403); // 0x31 option in other controller
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lcd_write_reg(0x35, 0x206);
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lcd_write_reg(0x36, 0x504);
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lcd_write_reg(0x37, 0x707);
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lcd_write_reg(0x38, 0x403);
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}
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else
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{
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// OF: last func continues, 0x5EFC
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lcd_write_reg(0x13, 0x1700);
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lcd_write_reg(0x29, 0x10);
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sleep(HZ/10);
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@ -213,21 +214,38 @@ static void lcd_power_on(void)
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lcd_write_reg(0x32, 0x400);
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lcd_write_reg(0x35, 0x3);
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lcd_write_reg(0x36, 0xF07);
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lcd_write_reg(0x37, 0x403);
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lcd_write_reg(0x37, 0x106);
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lcd_write_reg(0x37, 0x606);
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lcd_write_reg(0x38, 0x106);
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lcd_write_reg(0x39, 0x7);
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}
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else
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{
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lcd_write_reg(0x13, 0x1800);
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lcd_write_reg(0x29, 0x13);
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sleep(HZ/10);
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lcd_write_reg(0x20, 0x0);
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lcd_write_reg(0x21, 0x0);
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lcd_write_reg(0x30, 0x2);
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lcd_write_reg(0x31, 0x606);
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lcd_write_reg(0x32, 0x501);
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lcd_write_reg(0x35, 0x206);
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lcd_write_reg(0x36, 0x504);
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lcd_write_reg(0x37, 0x707);
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lcd_write_reg(0x38, 0x306);
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lcd_write_reg(0x39, 0x9);
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}
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// OF: b 0x6066
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lcd_write_reg(0x39, 0x7);
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/* BOOT: 0x6066 */
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lcd_write_reg(0x3c, 0x700);
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lcd_write_reg(0x3d, 0x700);
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lcd_write_reg(0x50, 0x0);
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lcd_write_reg(0x51, 0xef); // 239 - LCD_WIDTH
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lcd_write_reg(0x51, 0xef); /* 239 - LCD_WIDTH */
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lcd_write_reg(0x52, 0x0);
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lcd_write_reg(0x53, 0x13f); // 319 - LCD_HEIGHT
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lcd_write_reg(0x53, 0x13f); /* 319 - LCD_HEIGHT */
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// OF: b 0x6114
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/* BOOT: b 0x6114 */
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lcd_write_reg(0x60, 0x2700);
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lcd_write_reg(0x61, 0x1);
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lcd_write_reg(0x6a, 0x0);
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@ -239,7 +257,7 @@ static void lcd_power_on(void)
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lcd_write_reg(0x84, 0x0);
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lcd_write_reg(0x85, 0x0);
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// OF: 0x61A8
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/* BOOT: 0x61A8 */
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lcd_write_reg(0x90, 0x10);
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lcd_write_reg(0x92, 0x0);
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lcd_write_reg(0x93, 0x3);
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@ -250,14 +268,15 @@ static void lcd_power_on(void)
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lcd_write_reg(0xc, 0x110);
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lcd_write_reg(0x7, 0x173);
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sleep(HZ/10);
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lcd_write_cmd(0x22);
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power_on = true;
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}
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/* unknown 01 and 02 - sleep or enable on and off funcs? */
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void unknown01(void)
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{
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// OF: 0x62C4
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/* BOOT: 0x62C4
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OF: 0x88CA0 */
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lcd_write_reg(0x10, 0x17B0);
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udelay(100);
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@ -266,30 +285,26 @@ void unknown01(void)
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void unknown02(void)
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{
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// OF: 0x6308
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/* BOOT: 0x6308
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OF: 0x88D0C */
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lcd_write_reg(0x7, 0x160);
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lcd_write_reg(0x10, 0x17B1);
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}
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void unknown03(void)
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void unknown03(bool r0)
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{
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// OF: 0x6410
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GPIOJ_ENABLE |= 0x2;
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GPIOJ_OUTPUT_EN |= 0x2;
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GPIOJ_OUTPUT_VAL &= ~0x02;
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}
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/* BOOT: 0x6410
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OF: 0x88E30 */
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void unknown04(void)
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{
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// OF: 0x623C
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GPIOB_OUTPUT_VAL |= 0x4;
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udelay(1000);
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GPIOB_OUTPUT_VAL &= ~0x4;
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sleep(HZ/10);
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GPIOB_OUTPUT_VAL |= 0x4;
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udelay(1000);
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if (r0)
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GPIOJ_ENABLE &= ~0x2;
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else
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{
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GPIOJ_ENABLE |= 0x2;
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GPIOJ_OUTPUT_EN |= 0x2;
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GPIOJ_OUTPUT_VAL &= ~0x02;
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}
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}
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/* Run the display on sequence for the driver IC */
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@ -316,7 +331,6 @@ void lcd_init_device(void)
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{
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#ifdef BOOTLOADER /* Bother at all to do this again? */
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//#if 0
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/* Init GPIO ports */
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lcd_init_gpio();
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lcd_power_on();
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