mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-27 03:28:58 +02:00
78 lines
2.3 KiB
Diff
78 lines
2.3 KiB
Diff
|
From de5f4660856350ac43f642bb7c5adf063fc68287 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Kurt Mahan <kmahan@freescale.com>
|
||
|
|
Date: Mon, 10 Dec 2007 13:15:33 -0700
|
||
|
|
Subject: [PATCH] Fix to allow playback at other than 44.1.
|
||
|
|
|
||
|
|
LTIBName: m5445x-audio-rates
|
||
|
|
Signed-off-by: Kurt Mahan <kmahan@freescale.com>
|
||
|
|
---
|
||
|
|
drivers/spi/ssi_audio.c | 34 ++++++++++++++++++++++++----------
|
||
|
|
1 files changed, 24 insertions(+), 10 deletions(-)
|
||
|
|
|
||
|
|
--- a/drivers/spi/ssi_audio.c
|
||
|
|
+++ b/drivers/spi/ssi_audio.c
|
||
|
|
@@ -34,7 +34,6 @@
|
||
|
|
#define SOUND_DEVICE_NAME "sound"
|
||
|
|
#define DRIVER_NAME "ssi_audio"
|
||
|
|
|
||
|
|
-
|
||
|
|
/* #define AUDIO_DEBUG */
|
||
|
|
|
||
|
|
#ifdef CONFIG_MMU
|
||
|
|
@@ -315,24 +314,36 @@ static inline void disable_ssi(void)
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Audio CODEC initialization */
|
||
|
|
-/* TODO: also the SSI frequency/dividers must be adjusted */
|
||
|
|
static void adjust_codec_speed(void) {
|
||
|
|
#ifdef AUDIO_DEBUG
|
||
|
|
printk(DRIVER_NAME ":adjust_codec_speed: %d\n", audio_device->speed);
|
||
|
|
#endif
|
||
|
|
-
|
||
|
|
- if (audio_device->speed == 8000) {
|
||
|
|
+ disable_ssi();
|
||
|
|
+ switch (audio_device->speed) {
|
||
|
|
+ case 8000:
|
||
|
|
+ MCF_CCM_CDR = MCF_CCM_CDR_SSIDIV(255);
|
||
|
|
codec_write(CODEC_SAMPLE_RATE_REG,CODEC_SAMPLE_8KHZ);
|
||
|
|
- } else if (audio_device->speed == 16000) {
|
||
|
|
+ break;
|
||
|
|
+ case 16000:
|
||
|
|
+ MCF_CCM_CDR = MCF_CCM_CDR_SSIDIV(129);
|
||
|
|
codec_write(CODEC_SAMPLE_RATE_REG,CODEC_SAMPLE_16KHZ);
|
||
|
|
- } else if (audio_device->speed == 22000) {
|
||
|
|
+ break;
|
||
|
|
+ case 22000:
|
||
|
|
+ case 22050:
|
||
|
|
+ MCF_CCM_CDR = MCF_CCM_CDR_SSIDIV(94);
|
||
|
|
codec_write(CODEC_SAMPLE_RATE_REG,CODEC_SAMPLE_22KHZ);
|
||
|
|
- } else if (audio_device->speed == 44000 || audio_device->speed == 44100) {
|
||
|
|
+ break;
|
||
|
|
+ case 44000:
|
||
|
|
+ case 44100:
|
||
|
|
+ MCF_CCM_CDR = MCF_CCM_CDR_SSIDIV(47);
|
||
|
|
codec_write(CODEC_SAMPLE_RATE_REG,CODEC_SAMPLE_44KHZ);
|
||
|
|
- } else if (audio_device->speed == 48000) {
|
||
|
|
+ break;
|
||
|
|
+ case 48000:
|
||
|
|
+ MCF_CCM_CDR = MCF_CCM_CDR_SSIDIV(42);
|
||
|
|
codec_write(CODEC_SAMPLE_RATE_REG,CODEC_SAMPLE_48KHZ);
|
||
|
|
- } else {
|
||
|
|
- /* default 44KHz */
|
||
|
|
+ break;
|
||
|
|
+ default:
|
||
|
|
+ MCF_CCM_CDR = MCF_CCM_CDR_SSIDIV(47);
|
||
|
|
codec_write(CODEC_SAMPLE_RATE_REG,CODEC_SAMPLE_44KHZ);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
@@ -712,6 +723,9 @@ static int ssi_audio_ioctl(struct inode
|
||
|
|
case SNDCTL_DSP_SAMPLESIZE:
|
||
|
|
if (access_ok(VERIFY_READ, (void *) arg, sizeof(val))) {
|
||
|
|
get_user(val, (unsigned long *) arg);
|
||
|
|
+#ifdef AUDIO_DEBUG
|
||
|
|
+ printk(DRIVER_NAME ":ssi_audio_ioctl: SNDCTL_DSP_SAMPLESIZE: %d\n", val);
|
||
|
|
+#endif
|
||
|
|
ssi_audio_txdrain();
|
||
|
|
ssi_audio_setsamplesize(val);
|
||
|
|
} else {
|