diff options
author | Jens Arnold <amiconn@rockbox.org> | 2007-11-02 01:18:14 +0000 |
---|---|---|
committer | Jens Arnold <amiconn@rockbox.org> | 2007-11-02 01:18:14 +0000 |
commit | 9daf658ef18f1467ca949b7a4d4b6d428c8f4ce4 (patch) | |
tree | ed7a0b8fc5fd08586e49c2f34bb4a5a7d22771f7 | |
parent | c888a9bebef0c631db744ee12fda34eea07b7b1c (diff) | |
download | rockbox-9daf658ef18f1467ca949b7a4d4b6d428c8f4ce4.tar.gz rockbox-9daf658ef18f1467ca949b7a4d4b6d428c8f4ce4.zip |
iPod Video LCD driver: Reintroduce the simple method of waiting for update completion for use in the bootloader, because bootloaders don't enable interrupts and hence the tick task won't work. Slower than the full driver, but still faster than the old one, because it first transfers the data, and then polls the BCM.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15399 a1c6a512-1295-4272-9138-f99709370657
-rw-r--r-- | firmware/target/arm/ipod/video/lcd-video.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/firmware/target/arm/ipod/video/lcd-video.c b/firmware/target/arm/ipod/video/lcd-video.c index 8caa1b9c50..5c069f638b 100644 --- a/firmware/target/arm/ipod/video/lcd-video.c +++ b/firmware/target/arm/ipod/video/lcd-video.c | |||
@@ -62,7 +62,7 @@ enum lcd_status { | |||
62 | }; | 62 | }; |
63 | 63 | ||
64 | struct { | 64 | struct { |
65 | long update_timeout; | 65 | long update_timeout; |
66 | enum lcd_status state; | 66 | enum lcd_status state; |
67 | bool blocked; | 67 | bool blocked; |
68 | #if NUM_CORES > 1 | 68 | #if NUM_CORES > 1 |
@@ -107,6 +107,7 @@ static void bcm_setup_rect(unsigned x, unsigned y, | |||
107 | BCM_DATA32 = y + height - 1; | 107 | BCM_DATA32 = y + height - 1; |
108 | } | 108 | } |
109 | 109 | ||
110 | #ifndef BOOTLOADER | ||
110 | static void lcd_tick(void) | 111 | static void lcd_tick(void) |
111 | { | 112 | { |
112 | /* No set_irq_level - already in interrupt context */ | 113 | /* No set_irq_level - already in interrupt context */ |
@@ -186,6 +187,29 @@ static void lcd_unblock_and_update(void) | |||
186 | set_irq_level(oldlevel); | 187 | set_irq_level(oldlevel); |
187 | } | 188 | } |
188 | 189 | ||
190 | #else /* BOOTLOADER */ | ||
191 | |||
192 | #define lcd_block_tick() | ||
193 | |||
194 | static void lcd_unblock_and_update(void) | ||
195 | { | ||
196 | unsigned data; | ||
197 | |||
198 | if (lcd_state.state != LCD_INITIAL) | ||
199 | { | ||
200 | data = bcm_read32(0x1F8); | ||
201 | while (data == 0xFFFA0005 || data == 0xFFFF) | ||
202 | { | ||
203 | yield(); | ||
204 | data = bcm_read32(0x1F8); | ||
205 | } | ||
206 | } | ||
207 | bcm_write32(0x1F8, 0xFFFA0005); /* Kick off update */ | ||
208 | BCM_CONTROL = 0x31; | ||
209 | lcd_state.state = LCD_IDLE; | ||
210 | } | ||
211 | #endif /* BOOTLOADER */ | ||
212 | |||
189 | /*** hardware configuration ***/ | 213 | /*** hardware configuration ***/ |
190 | 214 | ||
191 | void lcd_set_contrast(int val) | 215 | void lcd_set_contrast(int val) |
@@ -210,11 +234,15 @@ void lcd_set_flip(bool yesno) | |||
210 | /* LCD init */ | 234 | /* LCD init */ |
211 | void lcd_init_device(void) | 235 | void lcd_init_device(void) |
212 | { | 236 | { |
237 | bcm_setup_rect(0, 0, LCD_WIDTH, LCD_HEIGHT); | ||
213 | lcd_state.blocked = false; | 238 | lcd_state.blocked = false; |
214 | lcd_state.state = LCD_INITIAL; | 239 | lcd_state.state = LCD_INITIAL; |
240 | #ifndef BOOTLOADER | ||
241 | #if NUM_CORES > 1 | ||
215 | corelock_init(&lcd_state.cl); | 242 | corelock_init(&lcd_state.cl); |
216 | bcm_setup_rect(0, 0, LCD_WIDTH, LCD_HEIGHT); | 243 | #endif |
217 | tick_add_task(&lcd_tick); | 244 | tick_add_task(&lcd_tick); |
245 | #endif /* !BOOTLOADER */ | ||
218 | } | 246 | } |
219 | 247 | ||
220 | /*** update functions ***/ | 248 | /*** update functions ***/ |