[ALSA] fm801 - Add PM support
Modules: FM801 driver Add PM support to fm801 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
Jaroslav Kysela
parent
09668b441d
commit
b1e9ed26a9
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@ -103,7 +103,11 @@ MODULE_PARM_DESC(tea575x_tuner, "Enable TEA575x tuner.");
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#define FM801_OPL3_DATA1 0x6b /* OPL3 Bank 1 Write */
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#define FM801_POWERDOWN 0x70 /* Blocks Power Down Control */
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#define FM801_AC97_ADDR_SHIFT 10
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/* codec access */
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#define FM801_AC97_READ (1<<7) /* read=1, write=0 */
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#define FM801_AC97_VALID (1<<8) /* port valid=1 */
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#define FM801_AC97_BUSY (1<<9) /* busy=1 */
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#define FM801_AC97_ADDR_SHIFT 10 /* codec id (2bit) */
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/* playback and record control register bits */
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#define FM801_BUF1_LAST (1<<1)
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@ -189,6 +193,10 @@ struct fm801 {
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#ifdef TEA575X_RADIO
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struct snd_tea575x tea;
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#endif
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#ifdef CONFIG_PM
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u16 saved_regs[0x20];
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#endif
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};
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static struct pci_device_id snd_fm801_ids[] = {
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@ -231,7 +239,7 @@ static void snd_fm801_codec_write(struct snd_ac97 *ac97,
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* Wait until the codec interface is not ready..
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*/
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for (idx = 0; idx < 100; idx++) {
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if (!(inw(FM801_REG(chip, AC97_CMD)) & (1<<9)))
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if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
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goto ok1;
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udelay(10);
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}
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@ -246,7 +254,7 @@ static void snd_fm801_codec_write(struct snd_ac97 *ac97,
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* Wait until the write command is not completed..
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*/
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for (idx = 0; idx < 1000; idx++) {
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if (!(inw(FM801_REG(chip, AC97_CMD)) & (1<<9)))
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if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
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return;
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udelay(10);
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}
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@ -262,7 +270,7 @@ static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short
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* Wait until the codec interface is not ready..
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*/
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for (idx = 0; idx < 100; idx++) {
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if (!(inw(FM801_REG(chip, AC97_CMD)) & (1<<9)))
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if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
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goto ok1;
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udelay(10);
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}
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@ -271,9 +279,10 @@ static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short
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ok1:
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/* read command */
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outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | (1<<7), FM801_REG(chip, AC97_CMD));
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outw(reg | (ac97->addr << FM801_AC97_ADDR_SHIFT) | FM801_AC97_READ,
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FM801_REG(chip, AC97_CMD));
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for (idx = 0; idx < 100; idx++) {
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if (!(inw(FM801_REG(chip, AC97_CMD)) & (1<<9)))
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if (!(inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_BUSY))
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goto ok2;
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udelay(10);
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}
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@ -282,7 +291,7 @@ static unsigned short snd_fm801_codec_read(struct snd_ac97 *ac97, unsigned short
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ok2:
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for (idx = 0; idx < 1000; idx++) {
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if (inw(FM801_REG(chip, AC97_CMD)) & (1<<8))
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if (inw(FM801_REG(chip, AC97_CMD)) & FM801_AC97_VALID)
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goto ok3;
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udelay(10);
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}
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@ -354,9 +363,11 @@ static int snd_fm801_playback_trigger(struct snd_pcm_substream *substream,
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chip->ply_ctrl &= ~(FM801_START | FM801_PAUSE);
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break;
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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chip->ply_ctrl |= FM801_PAUSE;
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break;
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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case SNDRV_PCM_TRIGGER_RESUME:
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chip->ply_ctrl &= ~FM801_PAUSE;
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break;
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default:
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@ -387,9 +398,11 @@ static int snd_fm801_capture_trigger(struct snd_pcm_substream *substream,
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chip->cap_ctrl &= ~(FM801_START | FM801_PAUSE);
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break;
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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chip->cap_ctrl |= FM801_PAUSE;
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break;
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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case SNDRV_PCM_TRIGGER_RESUME:
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chip->cap_ctrl &= ~FM801_PAUSE;
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break;
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default:
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@ -557,7 +570,7 @@ static struct snd_pcm_hardware snd_fm801_playback =
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{
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.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER |
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SNDRV_PCM_INFO_PAUSE |
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SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
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SNDRV_PCM_INFO_MMAP_VALID),
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.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
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@ -577,7 +590,7 @@ static struct snd_pcm_hardware snd_fm801_capture =
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{
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.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER |
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SNDRV_PCM_INFO_PAUSE |
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SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
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SNDRV_PCM_INFO_MMAP_VALID),
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.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
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.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
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@ -1218,6 +1231,85 @@ static int __devinit snd_fm801_mixer(struct fm801 *chip)
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* initialization routines
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*/
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static int wait_for_codec(struct fm801 *chip, unsigned int codec_id,
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unsigned short reg, unsigned long waits)
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{
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unsigned long timeout = jiffies + waits;
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outw(FM801_AC97_READ | (codec_id << FM801_AC97_ADDR_SHIFT) | reg,
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FM801_REG(chip, AC97_CMD));
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udelay(5);
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do {
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if ((inw(FM801_REG(chip, AC97_CMD)) & (FM801_AC97_VALID|FM801_AC97_BUSY))
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== FM801_AC97_VALID)
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return 0;
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schedule_timeout_uninterruptible(1);
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} while (time_after(timeout, jiffies));
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return -EIO;
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}
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static int snd_fm801_chip_init(struct fm801 *chip, int resume)
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{
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int id;
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unsigned short cmdw;
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/* codec cold reset + AC'97 warm reset */
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outw((1<<5) | (1<<6), FM801_REG(chip, CODEC_CTRL));
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inw(FM801_REG(chip, CODEC_CTRL)); /* flush posting data */
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udelay(100);
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outw(0, FM801_REG(chip, CODEC_CTRL));
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if (wait_for_codec(chip, 0, AC97_RESET, msecs_to_jiffies(750)) < 0) {
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snd_printk(KERN_ERR "Primary AC'97 codec not found\n");
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if (! resume)
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return -EIO;
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}
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if (chip->multichannel) {
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if (chip->secondary_addr) {
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wait_for_codec(chip, chip->secondary_addr,
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AC97_VENDOR_ID1, msecs_to_jiffies(50));
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} else {
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/* my card has the secondary codec */
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/* at address #3, so the loop is inverted */
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for (id = 3; id > 0; id--) {
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if (! wait_for_codec(chip, id, AC97_VENDOR_ID1,
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msecs_to_jiffies(50))) {
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cmdw = inw(FM801_REG(chip, AC97_DATA));
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if (cmdw != 0xffff && cmdw != 0) {
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chip->secondary = 1;
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chip->secondary_addr = id;
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break;
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}
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}
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}
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}
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/* the recovery phase, it seems that probing for non-existing codec might */
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/* cause timeout problems */
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wait_for_codec(chip, 0, AC97_VENDOR_ID1, msecs_to_jiffies(750));
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}
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/* init volume */
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outw(0x0808, FM801_REG(chip, PCM_VOL));
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outw(0x9f1f, FM801_REG(chip, FM_VOL));
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outw(0x8808, FM801_REG(chip, I2S_VOL));
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/* I2S control - I2S mode */
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outw(0x0003, FM801_REG(chip, I2S_MODE));
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/* interrupt setup - unmask MPU, PLAYBACK & CAPTURE */
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cmdw = inw(FM801_REG(chip, IRQ_MASK));
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cmdw &= ~0x0083;
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outw(cmdw, FM801_REG(chip, IRQ_MASK));
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/* interrupt clear */
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outw(FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU, FM801_REG(chip, IRQ_STATUS));
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return 0;
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}
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static int snd_fm801_free(struct fm801 *chip)
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{
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unsigned short cmdw;
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@ -1255,9 +1347,7 @@ static int __devinit snd_fm801_create(struct snd_card *card,
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struct fm801 ** rchip)
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{
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struct fm801 *chip;
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unsigned char rev, id;
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unsigned short cmdw;
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unsigned long timeout;
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unsigned char rev;
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int err;
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static struct snd_device_ops ops = {
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.dev_free = snd_fm801_dev_free,
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@ -1294,81 +1384,7 @@ static int __devinit snd_fm801_create(struct snd_card *card,
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if (rev >= 0xb1) /* FM801-AU */
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chip->multichannel = 1;
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/* codec cold reset + AC'97 warm reset */
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outw((1<<5)|(1<<6), FM801_REG(chip, CODEC_CTRL));
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inw(FM801_REG(chip, CODEC_CTRL)); /* flush posting data */
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udelay(100);
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outw(0, FM801_REG(chip, CODEC_CTRL));
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timeout = (jiffies + (3 * HZ) / 4) + 1; /* min 750ms */
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outw((1<<7) | (0 << FM801_AC97_ADDR_SHIFT), FM801_REG(chip, AC97_CMD));
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udelay(5);
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do {
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if ((inw(FM801_REG(chip, AC97_CMD)) & (3<<8)) == (1<<8))
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goto __ac97_secondary;
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schedule_timeout_uninterruptible(1);
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} while (time_after(timeout, jiffies));
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snd_printk(KERN_ERR "Primary AC'97 codec not found\n");
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snd_fm801_free(chip);
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return -EIO;
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__ac97_secondary:
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if (!chip->multichannel) /* lookup is not required */
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goto __ac97_ok;
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for (id = 3; id > 0; id--) { /* my card has the secondary codec */
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/* at address #3, so the loop is inverted */
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timeout = jiffies + HZ / 20;
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outw((1<<7) | (id << FM801_AC97_ADDR_SHIFT) | AC97_VENDOR_ID1,
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FM801_REG(chip, AC97_CMD));
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udelay(5);
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do {
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if ((inw(FM801_REG(chip, AC97_CMD)) & (3<<8)) == (1<<8)) {
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cmdw = inw(FM801_REG(chip, AC97_DATA));
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if (cmdw != 0xffff && cmdw != 0) {
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chip->secondary = 1;
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chip->secondary_addr = id;
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goto __ac97_ok;
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}
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}
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schedule_timeout_uninterruptible(1);
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} while (time_after(timeout, jiffies));
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}
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/* the recovery phase, it seems that probing for non-existing codec might */
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/* cause timeout problems */
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timeout = (jiffies + (3 * HZ) / 4) + 1; /* min 750ms */
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outw((1<<7) | (0 << FM801_AC97_ADDR_SHIFT), FM801_REG(chip, AC97_CMD));
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udelay(5);
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do {
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if ((inw(FM801_REG(chip, AC97_CMD)) & (3<<8)) == (1<<8))
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goto __ac97_ok;
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schedule_timeout_uninterruptible(1);
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} while (time_after(timeout, jiffies));
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snd_printk(KERN_ERR "Primary AC'97 codec not responding\n");
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snd_fm801_free(chip);
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return -EIO;
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__ac97_ok:
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/* init volume */
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outw(0x0808, FM801_REG(chip, PCM_VOL));
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outw(0x9f1f, FM801_REG(chip, FM_VOL));
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outw(0x8808, FM801_REG(chip, I2S_VOL));
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/* I2S control - I2S mode */
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outw(0x0003, FM801_REG(chip, I2S_MODE));
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/* interrupt setup - unmask MPU, PLAYBACK & CAPTURE */
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cmdw = inw(FM801_REG(chip, IRQ_MASK));
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cmdw &= ~0x0083;
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outw(cmdw, FM801_REG(chip, IRQ_MASK));
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/* interrupt clear */
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outw(FM801_IRQ_PLAYBACK|FM801_IRQ_CAPTURE|FM801_IRQ_MPU, FM801_REG(chip, IRQ_STATUS));
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snd_fm801_chip_init(chip, 0);
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if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
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snd_fm801_free(chip);
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@ -1415,6 +1431,7 @@ static int __devinit snd_card_fm801_probe(struct pci_dev *pci,
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snd_card_free(card);
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return err;
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}
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card->private_data = chip;
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strcpy(card->driver, "FM801");
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strcpy(card->shortname, "ForteMedia FM801-");
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@ -1462,11 +1479,65 @@ static void __devexit snd_card_fm801_remove(struct pci_dev *pci)
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pci_set_drvdata(pci, NULL);
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}
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#ifdef CONFIG_PM
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static unsigned char saved_regs[] = {
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FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
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FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
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FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,
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FM801_CODEC_CTRL, FM801_I2S_MODE, FM801_VOLUME, FM801_GEN_CTRL,
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};
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static int snd_fm801_suspend(struct pci_dev *pci, pm_message_t state)
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{
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struct snd_card *card = pci_get_drvdata(pci);
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struct fm801 *chip = card->private_data;
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int i;
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snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
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snd_pcm_suspend_all(chip->pcm);
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snd_ac97_suspend(chip->ac97);
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snd_ac97_suspend(chip->ac97_sec);
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for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
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chip->saved_regs[i] = inw(chip->port + saved_regs[i]);
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/* FIXME: tea575x suspend */
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pci_set_power_state(pci, PCI_D3hot);
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pci_disable_device(pci);
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pci_save_state(pci);
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return 0;
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}
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static int snd_fm801_resume(struct pci_dev *pci)
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{
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struct snd_card *card = pci_get_drvdata(pci);
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struct fm801 *chip = card->private_data;
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int i;
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pci_restore_state(pci);
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pci_enable_device(pci);
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pci_set_power_state(pci, PCI_D0);
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pci_set_master(pci);
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snd_fm801_chip_init(chip, 1);
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snd_ac97_resume(chip->ac97);
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snd_ac97_resume(chip->ac97_sec);
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for (i = 0; i < ARRAY_SIZE(saved_regs); i++)
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outw(chip->saved_regs[i], chip->port + saved_regs[i]);
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snd_power_change_state(card, SNDRV_CTL_POWER_D0);
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return 0;
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}
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#endif
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static struct pci_driver driver = {
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.name = "FM801",
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.id_table = snd_fm801_ids,
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.probe = snd_card_fm801_probe,
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.remove = __devexit_p(snd_card_fm801_remove),
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#ifdef CONFIG_PM
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.suspend = snd_fm801_suspend,
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.resume = snd_fm801_resume,
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#endif
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};
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static int __init alsa_card_fm801_init(void)
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