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author | Marcin Bukat <marcin.bukat@gmail.com> | 2010-10-13 20:35:58 +0000 |
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committer | Marcin Bukat <marcin.bukat@gmail.com> | 2010-10-13 20:35:58 +0000 |
commit | d793a971d8d0a0510c8e6da026ee3212ae4bf9ad (patch) | |
tree | f41501f6efa3b6701ee03fdfbfe6aa4b9a242aa8 | |
parent | 29503eea8631348530a22c2e6ef452758821d81e (diff) | |
download | rockbox-d793a971d8d0a0510c8e6da026ee3212ae4bf9ad.tar.gz rockbox-d793a971d8d0a0510c8e6da026ee3212ae4bf9ad.zip |
HD200 - GPIO57 is headphone output enable. Proper handling of this line fixes hissing noise after startup.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28270 a1c6a512-1295-4272-9138-f99709370657
-rw-r--r-- | firmware/drivers/audio/wm8751.c | 19 | ||||
-rw-r--r-- | firmware/target/coldfire/crt0.S | 2 |
2 files changed, 20 insertions, 1 deletions
diff --git a/firmware/drivers/audio/wm8751.c b/firmware/drivers/audio/wm8751.c index 5eb90b0178..1f2213c9a3 100644 --- a/firmware/drivers/audio/wm8751.c +++ b/firmware/drivers/audio/wm8751.c | |||
@@ -190,6 +190,15 @@ void audiohw_preinit(void) | |||
190 | GPIOL_OUTPUT_VAL |= 0x10; /* disable */ | 190 | GPIOL_OUTPUT_VAL |= 0x10; /* disable */ |
191 | #endif | 191 | #endif |
192 | 192 | ||
193 | #ifdef MPIO_HD200 | ||
194 | /* control headphone output | ||
195 | * disabled on startup | ||
196 | */ | ||
197 | and_l((1<<25),&GPIO1_OUT); | ||
198 | or_l((1<<25), &GPIO1_ENABLE); | ||
199 | or_l((1<<25), &GPIO1_FUNCTION); | ||
200 | #endif | ||
201 | |||
193 | /* | 202 | /* |
194 | * 1. Switch on power supplies. | 203 | * 1. Switch on power supplies. |
195 | * By default the WM8751 is in Standby Mode, the DAC is | 204 | * By default the WM8751 is in Standby Mode, the DAC is |
@@ -274,6 +283,11 @@ void audiohw_postinit(void) | |||
274 | GPIOL_OUTPUT_VAL &= ~0x10; | 283 | GPIOL_OUTPUT_VAL &= ~0x10; |
275 | GPIOL_OUTPUT_EN |= 0x10; | 284 | GPIOL_OUTPUT_EN |= 0x10; |
276 | #endif | 285 | #endif |
286 | |||
287 | #ifdef MPIO_HD200 | ||
288 | /* enable headphone output */ | ||
289 | or_l((1<<25),&GPIO1_OUT); | ||
290 | #endif | ||
277 | } | 291 | } |
278 | 292 | ||
279 | void audiohw_set_master_vol(int vol_l, int vol_r) | 293 | void audiohw_set_master_vol(int vol_l, int vol_r) |
@@ -327,6 +341,11 @@ void audiohw_close(void) | |||
327 | /* 1. Set DACMU = 1 to soft-mute the audio DACs. */ | 341 | /* 1. Set DACMU = 1 to soft-mute the audio DACs. */ |
328 | audiohw_mute(true); | 342 | audiohw_mute(true); |
329 | 343 | ||
344 | #ifdef MPIO_HD200 | ||
345 | /* disable headphone out */ | ||
346 | and_l(~(1<<25), &GPIO1_OUT); | ||
347 | #endif | ||
348 | |||
330 | /* 2. Disable all output buffers. */ | 349 | /* 2. Disable all output buffers. */ |
331 | wmcodec_write(PWRMGMT2, 0x0); | 350 | wmcodec_write(PWRMGMT2, 0x0); |
332 | 351 | ||
diff --git a/firmware/target/coldfire/crt0.S b/firmware/target/coldfire/crt0.S index 38365c7d71..a6ef3beea3 100644 --- a/firmware/target/coldfire/crt0.S +++ b/firmware/target/coldfire/crt0.S | |||
@@ -278,7 +278,7 @@ start: | |||
278 | 278 | ||
279 | #ifdef MPIO_HD200 | 279 | #ifdef MPIO_HD200 |
280 | /* Set KEEP_ACT */ | 280 | /* Set KEEP_ACT */ |
281 | move.l #0x02200000,%d0 | 281 | move.l #0x00200000,%d0 |
282 | or.l %d0,(0xb4,%a1) | 282 | or.l %d0,(0xb4,%a1) |
283 | or.l %d0,(0xb8,%a1) | 283 | or.l %d0,(0xb8,%a1) |
284 | or.l %d0,(0xbc,%a1) | 284 | or.l %d0,(0xbc,%a1) |