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ALSA: ctxfi - Add PM support
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Added the suspend/resume support to ctxfi driver.

The team tested on the following seems ok:
  AMD Athlon 64 3500+ / ASUS A8N-E / 512MB DDR ATI / Radeon X1300
  20k1 & 20k2 cards

Signed-off-by: Wai Yew CHAY <wychay@ctl.creative.com>
Singed-off-by: Ryan RICHARDS <ryan_richards@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Wai Yew CHAY authored and Takashi Iwai committed Jun 22, 2009
1 parent a8f4310 commit 29959a0
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Showing 9 changed files with 354 additions and 107 deletions.
181 changes: 133 additions & 48 deletions sound/pci/ctxfi/ctatc.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -261,13 +261,8 @@ static int atc_pcm_playback_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
int device = apcm->substream->pcm->device;
unsigned int pitch;

if (NULL != apcm->src) {
/* Prepared pcm playback */
return 0;
}

/* first release old resources */
atc->pcm_release_resources(atc, apcm);
atc_pcm_release_resources(atc, apcm);

/* Get SRC resource */
desc.multi = apcm->substream->runtime->channels;
Expand Down Expand Up @@ -661,10 +656,7 @@ static int atc_pcm_capture_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
unsigned int pitch;
int mix_base = 0, imp_base = 0;

if (NULL != apcm->src) {
/* Prepared pcm capture */
return 0;
}
atc_pcm_release_resources(atc, apcm);

/* Get needed resources. */
err = atc_pcm_capture_get_resources(atc, apcm);
Expand Down Expand Up @@ -867,7 +859,7 @@ spdif_passthru_playback_setup(struct ct_atc *atc, struct ct_atc_pcm *apcm)
struct dao *dao = container_of(atc->daios[SPDIFOO], struct dao, daio);
unsigned int rate = apcm->substream->runtime->rate;
unsigned int status;
int err;
int err = 0;
unsigned char iec958_con_fs;

switch (rate) {
Expand Down Expand Up @@ -908,8 +900,7 @@ spdif_passthru_playback_prepare(struct ct_atc *atc, struct ct_atc_pcm *apcm)
int err;
int i;

if (NULL != apcm->src)
return 0;
atc_pcm_release_resources(atc, apcm);

/* Configure SPDIFOO and PLL to passthrough mode;
* determine pll_rate. */
Expand Down Expand Up @@ -1116,32 +1107,20 @@ static int atc_spdif_out_passthru(struct ct_atc *atc, unsigned char state)
return err;
}

static int ct_atc_destroy(struct ct_atc *atc)
static int atc_release_resources(struct ct_atc *atc)
{
struct daio_mgr *daio_mgr;
struct dao *dao;
struct dai *dai;
struct daio *daio;
struct sum_mgr *sum_mgr;
struct src_mgr *src_mgr;
struct srcimp_mgr *srcimp_mgr;
struct srcimp *srcimp;
struct ct_mixer *mixer;
int i = 0;

if (NULL == atc)
return 0;

if (atc->timer) {
ct_timer_free(atc->timer);
atc->timer = NULL;
}

/* Stop hardware and disable all interrupts */
if (NULL != atc->hw)
((struct hw *)atc->hw)->card_stop(atc->hw);

/* Destroy internal mixer objects */
int i;
struct daio_mgr *daio_mgr = NULL;
struct dao *dao = NULL;
struct dai *dai = NULL;
struct daio *daio = NULL;
struct sum_mgr *sum_mgr = NULL;
struct src_mgr *src_mgr = NULL;
struct srcimp_mgr *srcimp_mgr = NULL;
struct srcimp *srcimp = NULL;
struct ct_mixer *mixer = NULL;

/* disconnect internal mixer objects */
if (NULL != atc->mixer) {
mixer = atc->mixer;
mixer->set_input_left(mixer, MIX_LINE_IN, NULL);
Expand All @@ -1150,7 +1129,6 @@ static int ct_atc_destroy(struct ct_atc *atc)
mixer->set_input_right(mixer, MIX_MIC_IN, NULL);
mixer->set_input_left(mixer, MIX_SPDIF_IN, NULL);
mixer->set_input_right(mixer, MIX_SPDIF_IN, NULL);
ct_mixer_destroy(atc->mixer);
}

if (NULL != atc->daios) {
Expand All @@ -1168,6 +1146,7 @@ static int ct_atc_destroy(struct ct_atc *atc)
daio_mgr->put_daio(daio_mgr, daio);
}
kfree(atc->daios);
atc->daios = NULL;
}

if (NULL != atc->pcm) {
Expand All @@ -1176,6 +1155,7 @@ static int ct_atc_destroy(struct ct_atc *atc)
sum_mgr->put_sum(sum_mgr, atc->pcm[i]);

kfree(atc->pcm);
atc->pcm = NULL;
}

if (NULL != atc->srcs) {
Expand All @@ -1184,6 +1164,7 @@ static int ct_atc_destroy(struct ct_atc *atc)
src_mgr->put_src(src_mgr, atc->srcs[i]);

kfree(atc->srcs);
atc->srcs = NULL;
}

if (NULL != atc->srcimps) {
Expand All @@ -1194,8 +1175,30 @@ static int ct_atc_destroy(struct ct_atc *atc)
srcimp_mgr->put_srcimp(srcimp_mgr, atc->srcimps[i]);
}
kfree(atc->srcimps);
atc->srcimps = NULL;
}

return 0;
}

static int ct_atc_destroy(struct ct_atc *atc)
{
int i = 0;

if (NULL == atc)
return 0;

if (atc->timer) {
ct_timer_free(atc->timer);
atc->timer = NULL;
}

atc_release_resources(atc);

/* Destroy internal mixer objects */
if (NULL != atc->mixer)
ct_mixer_destroy(atc->mixer);

for (i = 0; i < NUM_RSCTYP; i++) {
if ((NULL != rsc_mgr_funcs[i].destroy) &&
(NULL != atc->rsc_mgrs[i]))
Expand Down Expand Up @@ -1323,7 +1326,7 @@ static int __devinit atc_create_hw_devs(struct ct_atc *atc)
return 0;
}

static int __devinit atc_get_resources(struct ct_atc *atc)
static int atc_get_resources(struct ct_atc *atc)
{
struct daio_desc da_desc = {0};
struct daio_mgr *daio_mgr;
Expand Down Expand Up @@ -1420,16 +1423,10 @@ static int __devinit atc_get_resources(struct ct_atc *atc)
atc->n_pcm++;
}

err = ct_mixer_create(atc, (struct ct_mixer **)&atc->mixer);
if (err) {
printk(KERN_ERR "ctxfi: Failed to create mixer obj!!!\n");
return err;
}

return 0;
}

static void __devinit
static void
atc_connect_dai(struct src_mgr *src_mgr, struct dai *dai,
struct src **srcs, struct srcimp **srcimps)
{
Expand Down Expand Up @@ -1468,7 +1465,7 @@ atc_connect_dai(struct src_mgr *src_mgr, struct dai *dai,
src_mgr->commit_write(src_mgr); /* Synchronously enable SRCs */
}

static void __devinit atc_connect_resources(struct ct_atc *atc)
static void atc_connect_resources(struct ct_atc *atc)
{
struct dai *dai;
struct dao *dao;
Expand Down Expand Up @@ -1514,6 +1511,84 @@ static void __devinit atc_connect_resources(struct ct_atc *atc)
}
}

#ifdef CONFIG_PM
static int atc_suspend(struct ct_atc *atc, pm_message_t state)
{
int i;
struct hw *hw = atc->hw;

snd_power_change_state(atc->card, SNDRV_CTL_POWER_D3hot);

for (i = FRONT; i < NUM_PCMS; i++) {
if (!atc->pcms[i])
continue;

snd_pcm_suspend_all(atc->pcms[i]);
}

atc_release_resources(atc);

hw->suspend(hw, state);

return 0;
}

static int atc_hw_resume(struct ct_atc *atc)
{
struct hw *hw = atc->hw;
struct card_conf info = {0};

/* Re-initialize card hardware. */
info.rsr = atc->rsr;
info.msr = atc->msr;
info.vm_pgt_phys = atc_get_ptp_phys(atc, 0);
return hw->resume(hw, &info);
}

static int atc_resources_resume(struct ct_atc *atc)
{
struct ct_mixer *mixer;
int err = 0;

/* Get resources */
err = atc_get_resources(atc);
if (err < 0) {
atc_release_resources(atc);
return err;
}

/* Build topology */
atc_connect_resources(atc);

mixer = atc->mixer;
mixer->resume(mixer);

return 0;
}

static int atc_resume(struct ct_atc *atc)
{
int err = 0;

/* Do hardware resume. */
err = atc_hw_resume(atc);
if (err < 0) {
printk(KERN_ERR "ctxfi: pci_enable_device failed, "
"disabling device\n");
snd_card_disconnect(atc->card);
return err;
}

err = atc_resources_resume(atc);
if (err < 0)
return err;

snd_power_change_state(atc->card, SNDRV_CTL_POWER_D0);

return 0;
}
#endif

static struct ct_atc atc_preset __devinitdata = {
.map_audio_buffer = ct_map_audio_buffer,
.unmap_audio_buffer = ct_unmap_audio_buffer,
Expand Down Expand Up @@ -1542,6 +1617,10 @@ static struct ct_atc atc_preset __devinitdata = {
.spdif_out_set_status = atc_spdif_out_set_status,
.spdif_out_passthru = atc_spdif_out_passthru,
.have_digit_io_switch = atc_have_digit_io_switch,
#ifdef CONFIG_PM
.suspend = atc_suspend,
.resume = atc_resume,
#endif
};

/**
Expand Down Expand Up @@ -1600,6 +1679,12 @@ int __devinit ct_atc_create(struct snd_card *card, struct pci_dev *pci,
if (err < 0)
goto error1;

err = ct_mixer_create(atc, (struct ct_mixer **)&atc->mixer);
if (err) {
printk(KERN_ERR "ctxfi: Failed to create mixer obj!!!\n");
goto error1;
}

/* Get resources */
err = atc_get_resources(atc);
if (err < 0)
Expand Down
7 changes: 7 additions & 0 deletions sound/pci/ctxfi/ctatc.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -136,6 +136,13 @@ struct ct_atc {
unsigned char n_pcm;

struct ct_timer *timer;

#ifdef CONFIG_PM
int (*suspend)(struct ct_atc *atc, pm_message_t state);
int (*resume)(struct ct_atc *atc);
#define NUM_PCMS (NUM_CTALSADEVS - 1)
struct snd_pcm *pcms[NUM_PCMS];
#endif
};


Expand Down
4 changes: 4 additions & 0 deletions sound/pci/ctxfi/cthardware.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,10 @@ struct hw {
int (*card_init)(struct hw *hw, struct card_conf *info);
int (*card_stop)(struct hw *hw);
int (*pll_init)(struct hw *hw, unsigned int rsr);
#ifdef CONFIG_PM
int (*suspend)(struct hw *hw, pm_message_t state);
int (*resume)(struct hw *hw, struct card_conf *info);
#endif
int (*is_adc_source_selected)(struct hw *hw, enum ADCSRC source);
int (*select_adc_source)(struct hw *hw, enum ADCSRC source);
int (*have_digit_io_switch)(struct hw *hw);
Expand Down
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