📄 linux-at91rm9200-i2s.c
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if (cmd == SNDCTL_DSP_STEREO)
val = val ? 2 : 1;
if (val != 1 && val != 2)
return -EINVAL;
audio_channels = val;
break;
case SOUND_PCM_READ_CHANNELS:
put_user(audio_channels, (long *) arg);
break;
case SNDCTL_DSP_SPEED:
get_user(val, (long *) arg);
val = audio_set_dsp_speed(val);
if (val < 0)
return -EINVAL;
put_user(val, (long *) arg);
break;
case SOUND_PCM_READ_RATE:
put_user(audio_rate, (long *) arg);
break;
case SNDCTL_DSP_GETFMTS:
put_user(AUDIO_FMT_MASK, (long *) arg);
break;
case SNDCTL_DSP_GETBLKSIZE:
if(file->f_mode & FMODE_WRITE)
return put_user(audio_fragsize, (long *) arg);
else
return put_user(audio_fragsize, (int *) arg);
case SNDCTL_DSP_SETFRAGMENT:
if (file->f_mode & FMODE_WRITE) {
if (output_stream.buffers)
return -EBUSY;
get_user(val, (long *) arg);
audio_fragsize = 1 << (val & 0xFFFF);
if (audio_fragsize < 16)
audio_fragsize = 16;
if (audio_fragsize > 16384)
audio_fragsize = 16384;
audio_nbfrags = (val >> 16) & 0x7FFF;
if (audio_nbfrags < 2)
audio_nbfrags = 2;
if (audio_nbfrags * audio_fragsize > 128 * 1024)
audio_nbfrags = 128 * 1024 / audio_fragsize;
if (audio_setup_buf(&output_stream))
return -ENOMEM;
}
if (file->f_mode & FMODE_READ) {
if (input_stream.buffers)
return -EBUSY;
get_user(val, (int *) arg);
audio_fragsize = 1 << (val & 0xFFFF);
if (audio_fragsize < 16)
audio_fragsize = 16;
if (audio_fragsize > 16384)
audio_fragsize = 16384;
audio_nbfrags = (val >> 16) & 0x7FFF;
if (audio_nbfrags < 2)
audio_nbfrags = 2;
if (audio_nbfrags * audio_fragsize > 128 * 1024)
audio_nbfrags = 128 * 1024 / audio_fragsize;
if (audio_setup_buf(&input_stream))
return -ENOMEM;
}
break;
case SNDCTL_DSP_SYNC:
return audio_sync(file);
case SNDCTL_DSP_GETOSPACE:
{
audio_stream_t *s = &output_stream;
audio_buf_info *inf = (audio_buf_info *) arg;
int err = verify_area(VERIFY_WRITE, inf, sizeof(*inf));
int i;
int frags = 0, bytes = 0;
if (err)
return err;
for (i = 0; i < s->nbfrags; i++) {
if (atomic_read(&s->buffers[i].sem.count) > 0) {
if (s->buffers[i].size == 0) frags++;
bytes += s->fragsize - s->buffers[i].size;
}
}
put_user(frags, &inf->fragments);
put_user(s->nbfrags, &inf->fragstotal);
put_user(s->fragsize, &inf->fragsize);
put_user(bytes, &inf->bytes);
break;
}
case SNDCTL_DSP_GETISPACE:
{
audio_stream_t *s = &input_stream;
audio_buf_info *inf = (audio_buf_info *) arg;
int err = verify_area(VERIFY_WRITE, inf, sizeof(*inf));
int i;
int frags = 0, bytes = 0;
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
if (err)
return err;
for(i = 0; i < s->nbfrags; i++){
if (atomic_read(&s->buffers[i].sem.count) > 0)
{
if (s->buffers[i].size == s->fragsize)
frags++;
bytes += s->buffers[i].size;
}
}
put_user(frags, &inf->fragments);
put_user(s->nbfrags, &inf->fragstotal);
put_user(s->fragsize, &inf->fragsize);
put_user(bytes, &inf->bytes);
break;
}
case SNDCTL_DSP_RESET:
if (file->f_mode & FMODE_READ) {
audio_clear_buf(&input_stream);
}
if (file->f_mode & FMODE_WRITE) {
audio_clear_buf(&output_stream);
}
return 0;
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
return 0;
case SNDCTL_DSP_POST:
case SNDCTL_DSP_SUBDIVIDE:
case SNDCTL_DSP_GETCAPS:
case SNDCTL_DSP_GETTRIGGER:
case SNDCTL_DSP_SETTRIGGER:
case SNDCTL_DSP_GETIPTR:
case SNDCTL_DSP_GETOPTR:
case SNDCTL_DSP_MAPINBUF:
case SNDCTL_DSP_MAPOUTBUF:
case SNDCTL_DSP_SETSYNCRO:
case SNDCTL_DSP_SETDUPLEX:
return -ENOSYS;
default:
return smdk2410_mixer_ioctl(inode, file, cmd, arg);
}
return 0;
}
static int smdk2410_audio_open(struct inode *inode, struct file *file)
{
int cold = !audio_active;
DPRINTK("audio_open\n");
if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
if (audio_rd_refcount || audio_wr_refcount)
return -EBUSY;
audio_rd_refcount++;
} else if ((file->f_flags & O_ACCMODE) == O_WRONLY) {
if (audio_rd_refcount || audio_wr_refcount)
return -EBUSY;
audio_wr_refcount++;
} else if ((file->f_flags & O_ACCMODE) == O_RDWR) {
if (audio_rd_refcount || audio_wr_refcount)
return -EBUSY;
audio_rd_refcount++;
audio_wr_refcount++;
} else
return -EINVAL;
if (cold) {
audio_rate = AUDIO_RATE_DEFAULT;
audio_channels = AUDIO_CHANNELS_DEFAULT;
audio_fragsize = AUDIO_FRAGSIZE_DEFAULT;
audio_nbfrags = AUDIO_NBFRAGS_DEFAULT;
if ((file->f_mode & FMODE_WRITE)){
init_s3c2410_iis_bus_tx();
audio_clear_buf(&output_stream);
}
if ((file->f_mode & FMODE_READ)){
init_s3c2410_iis_bus_rx();
audio_clear_buf(&input_stream);
}
}
return 0;
}
static int smdk2410_audio_release(struct inode *inode, struct file *file)
{
AT91PS_SSC pSSC = (AT91PS_SSC)AT91C_VA_BASE_SSC2;
DPRINTK("audio_release\n");
if (file->f_mode & FMODE_READ) {
if (audio_rd_refcount == 1) {
audio_clear_buf(&input_stream);
audio_rd_refcount = 0;
}
}
if(file->f_mode & FMODE_WRITE) {
if (audio_wr_refcount == 1) {
audio_sync(file);
audio_clear_buf(&output_stream);
audio_wr_refcount = 0;
}
}
pSSC->SSC_TCR = 0;
pSSC->SSC_TNCR = 0;
pSSC->SSC_RCR = 0;
pSSC->SSC_RNCR = 0;
pSSC->SSC_PTCR = (1<<1)|(1<<9); //disable PDC tx and rx
pSSC->SSC_CR = (1<<1)|(1<<9); //disable tx and rx
//disable clock
((AT91PS_SYS)AT91C_VA_BASE_SYS)->PMC_PCDR = (1<<AT91C_ID_SSC2)|(1<<AT91C_ID_TC1);
return 0;
}
static struct file_operations smdk2410_audio_fops = {
.owner = THIS_MODULE,
.llseek = smdk2410_audio_llseek,
.write = smdk2410_audio_write,
.read = smdk2410_audio_read,
.poll = smdk2410_audio_poll,
.ioctl = smdk2410_audio_ioctl,
.open = smdk2410_audio_open,
.release = smdk2410_audio_release,
};
static int smdk2410_mixer_open(struct inode *inode, struct file *file)
{
return 0;
}
static int smdk2410_mixer_release(struct inode *inode, struct file *file)
{
return 0;
}
static struct file_operations smdk2410_mixer_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = smdk2410_mixer_ioctl,
.open = smdk2410_mixer_open,
.release = smdk2410_mixer_release,
};
static void init_uda1341(void)
{
unsigned long flags;
unsigned char uda_sampling;
uda1341_volume = 62 - ((DFT_VOLUME * 61) / 100);
uda1341_boost = 0;
uda_sampling = DATA2_DEEMP_NONE;
uda_sampling &= ~(DATA2_MUTE);
local_irq_save(flags);
L3MOD_HI();
L3CLK_HI();
local_irq_restore(flags);
uda1341_l3_address(UDA1341_REG_STATUS);
uda1341_l3_data(0x60); //reset uda1341
uda1341_l3_data(STAT0_SC_384FS | STAT0_IF_MSB); // set 384 system clock, MSB
uda1341_l3_data(STAT1 | STAT1_DAC_GAIN | STAT1_ADC_GAIN | STAT1_ADC_ON | STAT1_DAC_ON);
uda1341_l3_address(UDA1341_REG_DATA0);
uda1341_l3_data(DATA0 |DATA0_VOLUME(uda1341_volume)); // maximum volume
uda1341_l3_data(DATA1 |DATA1_BASS(uda1341_boost)| DATA1_TREBLE(0));
uda1341_l3_data(uda_sampling);
uda1341_l3_data(EXTADDR(EXT2));
uda1341_l3_data(EXTDATA(EXT2_MIC_GAIN(0x6)) | EXT2_MIXMODE_CH1);
}
static void __init init_iis_pio(void)
{
//iis lrclk, clk, dout, din
((AT91PS_SYS)AT91C_VA_BASE_SYS)->PIOB_ASR = AT91C_PIO_PB12
| AT91C_PIO_PB13
| AT91C_PIO_PB14
| AT91C_PIO_PB15;
//| AT91C_PIO_PB16
//| AT91C_PIO_PB17;
((AT91PS_SYS)AT91C_VA_BASE_SYS)->PIOB_PDR = AT91C_PIO_PB12
| AT91C_PIO_PB13
| AT91C_PIO_PB14
| AT91C_PIO_PB15;
//| AT91C_PIO_PB16
//| AT91C_PIO_PB17;
//codec clock
((AT91PS_SYS)AT91C_VA_BASE_SYS)->PIOA_BSR = AT91C_PIO_PA19;
((AT91PS_SYS)AT91C_VA_BASE_SYS)->PIOA_PDR = AT91C_PIO_PA19;
}
static int __init at91rm9200_uda1341_init(void)
{
// this_dev = dev;
int ret;
printk("AT91RM9200-UDA1341 Init\n");
init_iis_pio();
init_uda1341();
ret = request_irq(AT91C_ID_SSC2, iis_dma_done_handler, SA_INTERRUPT,
"IIS DMA", NULL);
if(ret < 0) {
printk(KERN_WARNING AUDIO_NAME_VERBOSE
": request IIS DMA irq fail, return code:%d\n", ret);
return -EBUSY;
}
audio_dev_dsp = register_sound_dsp(&smdk2410_audio_fops, -1);
audio_dev_mixer = register_sound_mixer(&smdk2410_mixer_fops, -1);
printk(AUDIO_NAME_VERBOSE " initialized\n");
return 0;
}
static void __exit at91rm9200_uda1341_exit(void)
{
unregister_sound_dsp(audio_dev_dsp);
unregister_sound_mixer(audio_dev_mixer);
free_irq(AT91C_ID_SSC2, NULL);
printk(AUDIO_NAME_VERBOSE " unloaded\n");
// return 0;
}
#ifdef MODULE
MODULE_AUTHOR("antiscle http://www.ucdragon.com");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("AT91RM9200 + UDA1341TS driver for OSS");
#endif
module_init(at91rm9200_uda1341_init);
module_exit(at91rm9200_uda1341_exit);
#define at91_ssc_read(a) ((unsigned long) __raw_readl(a))
+#define at91_ssc_write(a,v) __raw_writel((v),(a))
diff --git a/sound/soc/at91/eti_b1_wm8731.c b/sound/soc/at91/eti_b1_wm8731.c
new file mode 100644
index 0000000..089cdc9
--- /dev/null
+++ b/sound/soc/at91/eti_b1_wm8731.c
@@ -0,0 +1,268 @@
+/*
+ * eti_b1_wm8731 -- SoC audio for AT91RM9200-based Endrelia ETI_B1 board.
+ *
+ * Author: Frank Mandarino <fmandarino@endrelia.com>
+ * Endrelia Technologies Inc.
+ * Created: Mar 29, 2006
+ *
+ * Based on corgi.c by:
+ *
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Copyright 2005 Openedhand Ltd.
+ *
+ * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
+ * Richard Purdie <richard@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Revision history
+ * 30th Nov 2005 Initial version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <sound/driver.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pio.h>
+#include <asm/arch/gpio.h>
+
+#include "../codecs/wm8731.h"
+#include "at91-pcm.h"
+
+#if 0
+#define DBG(x...) printk(KERN_INFO "eti_b1_wm8731:" x)
+#else
+#define DBG(x...)
+#endif
+
+#define AT91_PIO_TF1 (1 << (AT91_PIN_PB6 - PIN_BASE) % 32)
+#define AT91_PIO_TK1 (1 << (AT91_PIN_PB7 - PIN_BASE) % 32)
+#define AT91_PIO_TD1 (1 << (AT91_PIN_PB8 - PIN_BASE) % 32)
+#define AT91_PIO_RD1 (1 << (AT91_PIN_PB9 - PIN_BASE) % 32)
+#define AT91_PIO_RK1 (1 << (AT91_PIN_PB10 - PIN_BASE) % 32)
+#define AT91_PIO_RF1 (1 << (AT91_PIN_PB11 - PIN_BASE) % 32)
+
+
+static struct clk *pck1_clk;
+static struct clk *pllb_clk;
+
+static int eti_b1_startup(struct snd_pcm_substream *substream)
+{
+ /* Start PCK1 clock. */
+ clk_enable(pck1_clk);
+ DBG("pck1 started\n");
+
+ return 0;
+}
+
+static void eti_b1_shutdown(struct snd_pcm_substream *substream)
+{
+ /* Stop PCK1 clock. */
+ clk_disable(pck1_clk);
+ DBG("pck1 stopped\n");
+}
+
+static struct snd_soc_ops eti_b1_ops = {
+ .startup = eti_b1_startup,
+ .shutdown = eti_b1_shutdown,
+};
+
+
+static const struct snd_soc_dapm_widget eti_b1_dapm_widgets[] = {
+ SND_SOC_DAPM_MIC("Int Mic", NULL),
+ SND_SOC_DAPM_SPK("Ext Spk", NULL),
+};
+
+static const char *intercon[][3] = {
+
+ /* speaker connected to LHPOUT */
+ {"Ext Spk", NULL, "LHPOUT"},
+
+ /* mic is connected to Mic Jack, with WM8731 Mic Bias */
+ {"MICIN", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Int Mic"},
+
+ /* terminator */
+ {NULL, NULL, NULL},
+};
+
+/*
+ * Logic for a wm8731 as connected on a Endrelia ETI-B1 board.
+ */
+static int eti_b1_wm8731_init(struct snd_soc_codec *codec)
+{
+ int i;
+
+ DBG("eti_b1_wm8731_init() called\n");
+
+ /* Add specific widgets */
+ for(i = 0; i < ARRAY_SIZE(eti_b1_dapm_widgets); i++) {
+ snd_soc_dapm_new_control(codec, &eti_b1_dapm_widgets[i]);
+ }
+
+ /* Set up specific audio path interconnects */
+ for(i = 0; intercon[i][0] != NULL; i++) {
+ snd_soc_dapm_connect_input(codec, intercon[i][0],
+ intercon[i][1], intercon[i][2]);
+ }
+
+ /* not connected */
+ snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0);
+ snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0);
+
+ /* always connected */
+ snd_soc_dapm_set_endpoint(codec, "Int Mic", 1);
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