mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1445 lines
38 KiB
1445 lines
38 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* Driver for SiS7019 Audio Accelerator |
|
* |
|
* Copyright (C) 2004-2007, David Dillow |
|
* Written by David Dillow <[email protected]> |
|
* Inspired by the Trident 4D-WaveDX/NX driver. |
|
* |
|
* All rights reserved. |
|
*/ |
|
|
|
#include <linux/init.h> |
|
#include <linux/pci.h> |
|
#include <linux/time.h> |
|
#include <linux/slab.h> |
|
#include <linux/module.h> |
|
#include <linux/interrupt.h> |
|
#include <linux/delay.h> |
|
#include <sound/core.h> |
|
#include <sound/ac97_codec.h> |
|
#include <sound/initval.h> |
|
#include "sis7019.h" |
|
|
|
MODULE_AUTHOR("David Dillow <[email protected]>"); |
|
MODULE_DESCRIPTION("SiS7019"); |
|
MODULE_LICENSE("GPL"); |
|
|
|
static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ |
|
static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ |
|
static bool enable = 1; |
|
static int codecs = 1; |
|
|
|
module_param(index, int, 0444); |
|
MODULE_PARM_DESC(index, "Index value for SiS7019 Audio Accelerator."); |
|
module_param(id, charp, 0444); |
|
MODULE_PARM_DESC(id, "ID string for SiS7019 Audio Accelerator."); |
|
module_param(enable, bool, 0444); |
|
MODULE_PARM_DESC(enable, "Enable SiS7019 Audio Accelerator."); |
|
module_param(codecs, int, 0444); |
|
MODULE_PARM_DESC(codecs, "Set bit to indicate that codec number is expected to be present (default 1)"); |
|
|
|
static const struct pci_device_id snd_sis7019_ids[] = { |
|
{ PCI_DEVICE(PCI_VENDOR_ID_SI, 0x7019) }, |
|
{ 0, } |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(pci, snd_sis7019_ids); |
|
|
|
/* There are three timing modes for the voices. |
|
* |
|
* For both playback and capture, when the buffer is one or two periods long, |
|
* we use the hardware's built-in Mid-Loop Interrupt and End-Loop Interrupt |
|
* to let us know when the periods have ended. |
|
* |
|
* When performing playback with more than two periods per buffer, we set |
|
* the "Stop Sample Offset" and tell the hardware to interrupt us when we |
|
* reach it. We then update the offset and continue on until we are |
|
* interrupted for the next period. |
|
* |
|
* Capture channels do not have a SSO, so we allocate a playback channel to |
|
* use as a timer for the capture periods. We use the SSO on the playback |
|
* channel to clock out virtual periods, and adjust the virtual period length |
|
* to maintain synchronization. This algorithm came from the Trident driver. |
|
* |
|
* FIXME: It'd be nice to make use of some of the synth features in the |
|
* hardware, but a woeful lack of documentation is a significant roadblock. |
|
*/ |
|
struct voice { |
|
u16 flags; |
|
#define VOICE_IN_USE 1 |
|
#define VOICE_CAPTURE 2 |
|
#define VOICE_SSO_TIMING 4 |
|
#define VOICE_SYNC_TIMING 8 |
|
u16 sync_cso; |
|
u16 period_size; |
|
u16 buffer_size; |
|
u16 sync_period_size; |
|
u16 sync_buffer_size; |
|
u32 sso; |
|
u32 vperiod; |
|
struct snd_pcm_substream *substream; |
|
struct voice *timing; |
|
void __iomem *ctrl_base; |
|
void __iomem *wave_base; |
|
void __iomem *sync_base; |
|
int num; |
|
}; |
|
|
|
/* We need four pages to store our wave parameters during a suspend. If |
|
* we're not doing power management, we still need to allocate a page |
|
* for the silence buffer. |
|
*/ |
|
#ifdef CONFIG_PM_SLEEP |
|
#define SIS_SUSPEND_PAGES 4 |
|
#else |
|
#define SIS_SUSPEND_PAGES 1 |
|
#endif |
|
|
|
struct sis7019 { |
|
unsigned long ioport; |
|
void __iomem *ioaddr; |
|
int irq; |
|
int codecs_present; |
|
|
|
struct pci_dev *pci; |
|
struct snd_pcm *pcm; |
|
struct snd_card *card; |
|
struct snd_ac97 *ac97[3]; |
|
|
|
/* Protect against more than one thread hitting the AC97 |
|
* registers (in a more polite manner than pounding the hardware |
|
* semaphore) |
|
*/ |
|
struct mutex ac97_mutex; |
|
|
|
/* voice_lock protects allocation/freeing of the voice descriptions |
|
*/ |
|
spinlock_t voice_lock; |
|
|
|
struct voice voices[64]; |
|
struct voice capture_voice; |
|
|
|
/* Allocate pages to store the internal wave state during |
|
* suspends. When we're operating, this can be used as a silence |
|
* buffer for a timing channel. |
|
*/ |
|
void *suspend_state[SIS_SUSPEND_PAGES]; |
|
|
|
int silence_users; |
|
dma_addr_t silence_dma_addr; |
|
}; |
|
|
|
/* These values are also used by the module param 'codecs' to indicate |
|
* which codecs should be present. |
|
*/ |
|
#define SIS_PRIMARY_CODEC_PRESENT 0x0001 |
|
#define SIS_SECONDARY_CODEC_PRESENT 0x0002 |
|
#define SIS_TERTIARY_CODEC_PRESENT 0x0004 |
|
|
|
/* The HW offset parameters (Loop End, Stop Sample, End Sample) have a |
|
* documented range of 8-0xfff8 samples. Given that they are 0-based, |
|
* that places our period/buffer range at 9-0xfff9 samples. That makes the |
|
* max buffer size 0xfff9 samples * 2 channels * 2 bytes per sample, and |
|
* max samples / min samples gives us the max periods in a buffer. |
|
* |
|
* We'll add a constraint upon open that limits the period and buffer sample |
|
* size to values that are legal for the hardware. |
|
*/ |
|
static const struct snd_pcm_hardware sis_playback_hw_info = { |
|
.info = (SNDRV_PCM_INFO_MMAP | |
|
SNDRV_PCM_INFO_MMAP_VALID | |
|
SNDRV_PCM_INFO_INTERLEAVED | |
|
SNDRV_PCM_INFO_BLOCK_TRANSFER | |
|
SNDRV_PCM_INFO_SYNC_START | |
|
SNDRV_PCM_INFO_RESUME), |
|
.formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | |
|
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), |
|
.rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_CONTINUOUS, |
|
.rate_min = 4000, |
|
.rate_max = 48000, |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.buffer_bytes_max = (0xfff9 * 4), |
|
.period_bytes_min = 9, |
|
.period_bytes_max = (0xfff9 * 4), |
|
.periods_min = 1, |
|
.periods_max = (0xfff9 / 9), |
|
}; |
|
|
|
static const struct snd_pcm_hardware sis_capture_hw_info = { |
|
.info = (SNDRV_PCM_INFO_MMAP | |
|
SNDRV_PCM_INFO_MMAP_VALID | |
|
SNDRV_PCM_INFO_INTERLEAVED | |
|
SNDRV_PCM_INFO_BLOCK_TRANSFER | |
|
SNDRV_PCM_INFO_SYNC_START | |
|
SNDRV_PCM_INFO_RESUME), |
|
.formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | |
|
SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE), |
|
.rates = SNDRV_PCM_RATE_48000, |
|
.rate_min = 4000, |
|
.rate_max = 48000, |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.buffer_bytes_max = (0xfff9 * 4), |
|
.period_bytes_min = 9, |
|
.period_bytes_max = (0xfff9 * 4), |
|
.periods_min = 1, |
|
.periods_max = (0xfff9 / 9), |
|
}; |
|
|
|
static void sis_update_sso(struct voice *voice, u16 period) |
|
{ |
|
void __iomem *base = voice->ctrl_base; |
|
|
|
voice->sso += period; |
|
if (voice->sso >= voice->buffer_size) |
|
voice->sso -= voice->buffer_size; |
|
|
|
/* Enforce the documented hardware minimum offset */ |
|
if (voice->sso < 8) |
|
voice->sso = 8; |
|
|
|
/* The SSO is in the upper 16 bits of the register. */ |
|
writew(voice->sso & 0xffff, base + SIS_PLAY_DMA_SSO_ESO + 2); |
|
} |
|
|
|
static void sis_update_voice(struct voice *voice) |
|
{ |
|
if (voice->flags & VOICE_SSO_TIMING) { |
|
sis_update_sso(voice, voice->period_size); |
|
} else if (voice->flags & VOICE_SYNC_TIMING) { |
|
int sync; |
|
|
|
/* If we've not hit the end of the virtual period, update |
|
* our records and keep going. |
|
*/ |
|
if (voice->vperiod > voice->period_size) { |
|
voice->vperiod -= voice->period_size; |
|
if (voice->vperiod < voice->period_size) |
|
sis_update_sso(voice, voice->vperiod); |
|
else |
|
sis_update_sso(voice, voice->period_size); |
|
return; |
|
} |
|
|
|
/* Calculate our relative offset between the target and |
|
* the actual CSO value. Since we're operating in a loop, |
|
* if the value is more than half way around, we can |
|
* consider ourselves wrapped. |
|
*/ |
|
sync = voice->sync_cso; |
|
sync -= readw(voice->sync_base + SIS_CAPTURE_DMA_FORMAT_CSO); |
|
if (sync > (voice->sync_buffer_size / 2)) |
|
sync -= voice->sync_buffer_size; |
|
|
|
/* If sync is positive, then we interrupted too early, and |
|
* we'll need to come back in a few samples and try again. |
|
* There's a minimum wait, as it takes some time for the DMA |
|
* engine to startup, etc... |
|
*/ |
|
if (sync > 0) { |
|
if (sync < 16) |
|
sync = 16; |
|
sis_update_sso(voice, sync); |
|
return; |
|
} |
|
|
|
/* Ok, we interrupted right on time, or (hopefully) just |
|
* a bit late. We'll adjst our next waiting period based |
|
* on how close we got. |
|
* |
|
* We need to stay just behind the actual channel to ensure |
|
* it really is past a period when we get our interrupt -- |
|
* otherwise we'll fall into the early code above and have |
|
* a minimum wait time, which makes us quite late here, |
|
* eating into the user's time to refresh the buffer, esp. |
|
* if using small periods. |
|
* |
|
* If we're less than 9 samples behind, we're on target. |
|
* Otherwise, shorten the next vperiod by the amount we've |
|
* been delayed. |
|
*/ |
|
if (sync > -9) |
|
voice->vperiod = voice->sync_period_size + 1; |
|
else |
|
voice->vperiod = voice->sync_period_size + sync + 10; |
|
|
|
if (voice->vperiod < voice->buffer_size) { |
|
sis_update_sso(voice, voice->vperiod); |
|
voice->vperiod = 0; |
|
} else |
|
sis_update_sso(voice, voice->period_size); |
|
|
|
sync = voice->sync_cso + voice->sync_period_size; |
|
if (sync >= voice->sync_buffer_size) |
|
sync -= voice->sync_buffer_size; |
|
voice->sync_cso = sync; |
|
} |
|
|
|
snd_pcm_period_elapsed(voice->substream); |
|
} |
|
|
|
static void sis_voice_irq(u32 status, struct voice *voice) |
|
{ |
|
int bit; |
|
|
|
while (status) { |
|
bit = __ffs(status); |
|
status >>= bit + 1; |
|
voice += bit; |
|
sis_update_voice(voice); |
|
voice++; |
|
} |
|
} |
|
|
|
static irqreturn_t sis_interrupt(int irq, void *dev) |
|
{ |
|
struct sis7019 *sis = dev; |
|
unsigned long io = sis->ioport; |
|
struct voice *voice; |
|
u32 intr, status; |
|
|
|
/* We only use the DMA interrupts, and we don't enable any other |
|
* source of interrupts. But, it is possible to see an interrupt |
|
* status that didn't actually interrupt us, so eliminate anything |
|
* we're not expecting to avoid falsely claiming an IRQ, and an |
|
* ensuing endless loop. |
|
*/ |
|
intr = inl(io + SIS_GISR); |
|
intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS | |
|
SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS; |
|
if (!intr) |
|
return IRQ_NONE; |
|
|
|
do { |
|
status = inl(io + SIS_PISR_A); |
|
if (status) { |
|
sis_voice_irq(status, sis->voices); |
|
outl(status, io + SIS_PISR_A); |
|
} |
|
|
|
status = inl(io + SIS_PISR_B); |
|
if (status) { |
|
sis_voice_irq(status, &sis->voices[32]); |
|
outl(status, io + SIS_PISR_B); |
|
} |
|
|
|
status = inl(io + SIS_RISR); |
|
if (status) { |
|
voice = &sis->capture_voice; |
|
if (!voice->timing) |
|
snd_pcm_period_elapsed(voice->substream); |
|
|
|
outl(status, io + SIS_RISR); |
|
} |
|
|
|
outl(intr, io + SIS_GISR); |
|
intr = inl(io + SIS_GISR); |
|
intr &= SIS_GISR_AUDIO_PLAY_DMA_IRQ_STATUS | |
|
SIS_GISR_AUDIO_RECORD_DMA_IRQ_STATUS; |
|
} while (intr); |
|
|
|
return IRQ_HANDLED; |
|
} |
|
|
|
static u32 sis_rate_to_delta(unsigned int rate) |
|
{ |
|
u32 delta; |
|
|
|
/* This was copied from the trident driver, but it seems its gotten |
|
* around a bit... nevertheless, it works well. |
|
* |
|
* We special case 44100 and 8000 since rounding with the equation |
|
* does not give us an accurate enough value. For 11025 and 22050 |
|
* the equation gives us the best answer. All other frequencies will |
|
* also use the equation. JDW |
|
*/ |
|
if (rate == 44100) |
|
delta = 0xeb3; |
|
else if (rate == 8000) |
|
delta = 0x2ab; |
|
else if (rate == 48000) |
|
delta = 0x1000; |
|
else |
|
delta = DIV_ROUND_CLOSEST(rate << 12, 48000) & 0x0000ffff; |
|
return delta; |
|
} |
|
|
|
static void __sis_map_silence(struct sis7019 *sis) |
|
{ |
|
/* Helper function: must hold sis->voice_lock on entry */ |
|
if (!sis->silence_users) |
|
sis->silence_dma_addr = dma_map_single(&sis->pci->dev, |
|
sis->suspend_state[0], |
|
4096, DMA_TO_DEVICE); |
|
sis->silence_users++; |
|
} |
|
|
|
static void __sis_unmap_silence(struct sis7019 *sis) |
|
{ |
|
/* Helper function: must hold sis->voice_lock on entry */ |
|
sis->silence_users--; |
|
if (!sis->silence_users) |
|
dma_unmap_single(&sis->pci->dev, sis->silence_dma_addr, 4096, |
|
DMA_TO_DEVICE); |
|
} |
|
|
|
static void sis_free_voice(struct sis7019 *sis, struct voice *voice) |
|
{ |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&sis->voice_lock, flags); |
|
if (voice->timing) { |
|
__sis_unmap_silence(sis); |
|
voice->timing->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING | |
|
VOICE_SYNC_TIMING); |
|
voice->timing = NULL; |
|
} |
|
voice->flags &= ~(VOICE_IN_USE | VOICE_SSO_TIMING | VOICE_SYNC_TIMING); |
|
spin_unlock_irqrestore(&sis->voice_lock, flags); |
|
} |
|
|
|
static struct voice *__sis_alloc_playback_voice(struct sis7019 *sis) |
|
{ |
|
/* Must hold the voice_lock on entry */ |
|
struct voice *voice; |
|
int i; |
|
|
|
for (i = 0; i < 64; i++) { |
|
voice = &sis->voices[i]; |
|
if (voice->flags & VOICE_IN_USE) |
|
continue; |
|
voice->flags |= VOICE_IN_USE; |
|
goto found_one; |
|
} |
|
voice = NULL; |
|
|
|
found_one: |
|
return voice; |
|
} |
|
|
|
static struct voice *sis_alloc_playback_voice(struct sis7019 *sis) |
|
{ |
|
struct voice *voice; |
|
unsigned long flags; |
|
|
|
spin_lock_irqsave(&sis->voice_lock, flags); |
|
voice = __sis_alloc_playback_voice(sis); |
|
spin_unlock_irqrestore(&sis->voice_lock, flags); |
|
|
|
return voice; |
|
} |
|
|
|
static int sis_alloc_timing_voice(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *hw_params) |
|
{ |
|
struct sis7019 *sis = snd_pcm_substream_chip(substream); |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *voice = runtime->private_data; |
|
unsigned int period_size, buffer_size; |
|
unsigned long flags; |
|
int needed; |
|
|
|
/* If there are one or two periods per buffer, we don't need a |
|
* timing voice, as we can use the capture channel's interrupts |
|
* to clock out the periods. |
|
*/ |
|
period_size = params_period_size(hw_params); |
|
buffer_size = params_buffer_size(hw_params); |
|
needed = (period_size != buffer_size && |
|
period_size != (buffer_size / 2)); |
|
|
|
if (needed && !voice->timing) { |
|
spin_lock_irqsave(&sis->voice_lock, flags); |
|
voice->timing = __sis_alloc_playback_voice(sis); |
|
if (voice->timing) |
|
__sis_map_silence(sis); |
|
spin_unlock_irqrestore(&sis->voice_lock, flags); |
|
if (!voice->timing) |
|
return -ENOMEM; |
|
voice->timing->substream = substream; |
|
} else if (!needed && voice->timing) { |
|
sis_free_voice(sis, voice); |
|
voice->timing = NULL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int sis_playback_open(struct snd_pcm_substream *substream) |
|
{ |
|
struct sis7019 *sis = snd_pcm_substream_chip(substream); |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *voice; |
|
|
|
voice = sis_alloc_playback_voice(sis); |
|
if (!voice) |
|
return -EAGAIN; |
|
|
|
voice->substream = substream; |
|
runtime->private_data = voice; |
|
runtime->hw = sis_playback_hw_info; |
|
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, |
|
9, 0xfff9); |
|
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, |
|
9, 0xfff9); |
|
snd_pcm_set_sync(substream); |
|
return 0; |
|
} |
|
|
|
static int sis_substream_close(struct snd_pcm_substream *substream) |
|
{ |
|
struct sis7019 *sis = snd_pcm_substream_chip(substream); |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *voice = runtime->private_data; |
|
|
|
sis_free_voice(sis, voice); |
|
return 0; |
|
} |
|
|
|
static int sis_pcm_playback_prepare(struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *voice = runtime->private_data; |
|
void __iomem *ctrl_base = voice->ctrl_base; |
|
void __iomem *wave_base = voice->wave_base; |
|
u32 format, dma_addr, control, sso_eso, delta, reg; |
|
u16 leo; |
|
|
|
/* We rely on the PCM core to ensure that the parameters for this |
|
* substream do not change on us while we're programming the HW. |
|
*/ |
|
format = 0; |
|
if (snd_pcm_format_width(runtime->format) == 8) |
|
format |= SIS_PLAY_DMA_FORMAT_8BIT; |
|
if (!snd_pcm_format_signed(runtime->format)) |
|
format |= SIS_PLAY_DMA_FORMAT_UNSIGNED; |
|
if (runtime->channels == 1) |
|
format |= SIS_PLAY_DMA_FORMAT_MONO; |
|
|
|
/* The baseline setup is for a single period per buffer, and |
|
* we add bells and whistles as needed from there. |
|
*/ |
|
dma_addr = runtime->dma_addr; |
|
leo = runtime->buffer_size - 1; |
|
control = leo | SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_LEO; |
|
sso_eso = leo; |
|
|
|
if (runtime->period_size == (runtime->buffer_size / 2)) { |
|
control |= SIS_PLAY_DMA_INTR_AT_MLP; |
|
} else if (runtime->period_size != runtime->buffer_size) { |
|
voice->flags |= VOICE_SSO_TIMING; |
|
voice->sso = runtime->period_size - 1; |
|
voice->period_size = runtime->period_size; |
|
voice->buffer_size = runtime->buffer_size; |
|
|
|
control &= ~SIS_PLAY_DMA_INTR_AT_LEO; |
|
control |= SIS_PLAY_DMA_INTR_AT_SSO; |
|
sso_eso |= (runtime->period_size - 1) << 16; |
|
} |
|
|
|
delta = sis_rate_to_delta(runtime->rate); |
|
|
|
/* Ok, we're ready to go, set up the channel. |
|
*/ |
|
writel(format, ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); |
|
writel(dma_addr, ctrl_base + SIS_PLAY_DMA_BASE); |
|
writel(control, ctrl_base + SIS_PLAY_DMA_CONTROL); |
|
writel(sso_eso, ctrl_base + SIS_PLAY_DMA_SSO_ESO); |
|
|
|
for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) |
|
writel(0, wave_base + reg); |
|
|
|
writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); |
|
writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); |
|
writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | |
|
SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | |
|
SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, |
|
wave_base + SIS_WAVE_CHANNEL_CONTROL); |
|
|
|
/* Force PCI writes to post. */ |
|
readl(ctrl_base); |
|
|
|
return 0; |
|
} |
|
|
|
static int sis_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
|
{ |
|
struct sis7019 *sis = snd_pcm_substream_chip(substream); |
|
unsigned long io = sis->ioport; |
|
struct snd_pcm_substream *s; |
|
struct voice *voice; |
|
void *chip; |
|
int starting; |
|
u32 record = 0; |
|
u32 play[2] = { 0, 0 }; |
|
|
|
/* No locks needed, as the PCM core will hold the locks on the |
|
* substreams, and the HW will only start/stop the indicated voices |
|
* without changing the state of the others. |
|
*/ |
|
switch (cmd) { |
|
case SNDRV_PCM_TRIGGER_START: |
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
|
case SNDRV_PCM_TRIGGER_RESUME: |
|
starting = 1; |
|
break; |
|
case SNDRV_PCM_TRIGGER_STOP: |
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
|
case SNDRV_PCM_TRIGGER_SUSPEND: |
|
starting = 0; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
snd_pcm_group_for_each_entry(s, substream) { |
|
/* Make sure it is for us... */ |
|
chip = snd_pcm_substream_chip(s); |
|
if (chip != sis) |
|
continue; |
|
|
|
voice = s->runtime->private_data; |
|
if (voice->flags & VOICE_CAPTURE) { |
|
record |= 1 << voice->num; |
|
voice = voice->timing; |
|
} |
|
|
|
/* voice could be NULL if this a recording stream, and it |
|
* doesn't have an external timing channel. |
|
*/ |
|
if (voice) |
|
play[voice->num / 32] |= 1 << (voice->num & 0x1f); |
|
|
|
snd_pcm_trigger_done(s, substream); |
|
} |
|
|
|
if (starting) { |
|
if (record) |
|
outl(record, io + SIS_RECORD_START_REG); |
|
if (play[0]) |
|
outl(play[0], io + SIS_PLAY_START_A_REG); |
|
if (play[1]) |
|
outl(play[1], io + SIS_PLAY_START_B_REG); |
|
} else { |
|
if (record) |
|
outl(record, io + SIS_RECORD_STOP_REG); |
|
if (play[0]) |
|
outl(play[0], io + SIS_PLAY_STOP_A_REG); |
|
if (play[1]) |
|
outl(play[1], io + SIS_PLAY_STOP_B_REG); |
|
} |
|
return 0; |
|
} |
|
|
|
static snd_pcm_uframes_t sis_pcm_pointer(struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *voice = runtime->private_data; |
|
u32 cso; |
|
|
|
cso = readl(voice->ctrl_base + SIS_PLAY_DMA_FORMAT_CSO); |
|
cso &= 0xffff; |
|
return cso; |
|
} |
|
|
|
static int sis_capture_open(struct snd_pcm_substream *substream) |
|
{ |
|
struct sis7019 *sis = snd_pcm_substream_chip(substream); |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *voice = &sis->capture_voice; |
|
unsigned long flags; |
|
|
|
/* FIXME: The driver only supports recording from one channel |
|
* at the moment, but it could support more. |
|
*/ |
|
spin_lock_irqsave(&sis->voice_lock, flags); |
|
if (voice->flags & VOICE_IN_USE) |
|
voice = NULL; |
|
else |
|
voice->flags |= VOICE_IN_USE; |
|
spin_unlock_irqrestore(&sis->voice_lock, flags); |
|
|
|
if (!voice) |
|
return -EAGAIN; |
|
|
|
voice->substream = substream; |
|
runtime->private_data = voice; |
|
runtime->hw = sis_capture_hw_info; |
|
runtime->hw.rates = sis->ac97[0]->rates[AC97_RATES_ADC]; |
|
snd_pcm_limit_hw_rates(runtime); |
|
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, |
|
9, 0xfff9); |
|
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, |
|
9, 0xfff9); |
|
snd_pcm_set_sync(substream); |
|
return 0; |
|
} |
|
|
|
static int sis_capture_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *hw_params) |
|
{ |
|
struct sis7019 *sis = snd_pcm_substream_chip(substream); |
|
int rc; |
|
|
|
rc = snd_ac97_set_rate(sis->ac97[0], AC97_PCM_LR_ADC_RATE, |
|
params_rate(hw_params)); |
|
if (rc) |
|
goto out; |
|
|
|
rc = sis_alloc_timing_voice(substream, hw_params); |
|
|
|
out: |
|
return rc; |
|
} |
|
|
|
static void sis_prepare_timing_voice(struct voice *voice, |
|
struct snd_pcm_substream *substream) |
|
{ |
|
struct sis7019 *sis = snd_pcm_substream_chip(substream); |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *timing = voice->timing; |
|
void __iomem *play_base = timing->ctrl_base; |
|
void __iomem *wave_base = timing->wave_base; |
|
u16 buffer_size, period_size; |
|
u32 format, control, sso_eso, delta; |
|
u32 vperiod, sso, reg; |
|
|
|
/* Set our initial buffer and period as large as we can given a |
|
* single page of silence. |
|
*/ |
|
buffer_size = 4096 / runtime->channels; |
|
buffer_size /= snd_pcm_format_size(runtime->format, 1); |
|
period_size = buffer_size; |
|
|
|
/* Initially, we want to interrupt just a bit behind the end of |
|
* the period we're clocking out. 12 samples seems to give a good |
|
* delay. |
|
* |
|
* We want to spread our interrupts throughout the virtual period, |
|
* so that we don't end up with two interrupts back to back at the |
|
* end -- this helps minimize the effects of any jitter. Adjust our |
|
* clocking period size so that the last period is at least a fourth |
|
* of a full period. |
|
* |
|
* This is all moot if we don't need to use virtual periods. |
|
*/ |
|
vperiod = runtime->period_size + 12; |
|
if (vperiod > period_size) { |
|
u16 tail = vperiod % period_size; |
|
u16 quarter_period = period_size / 4; |
|
|
|
if (tail && tail < quarter_period) { |
|
u16 loops = vperiod / period_size; |
|
|
|
tail = quarter_period - tail; |
|
tail += loops - 1; |
|
tail /= loops; |
|
period_size -= tail; |
|
} |
|
|
|
sso = period_size - 1; |
|
} else { |
|
/* The initial period will fit inside the buffer, so we |
|
* don't need to use virtual periods -- disable them. |
|
*/ |
|
period_size = runtime->period_size; |
|
sso = vperiod - 1; |
|
vperiod = 0; |
|
} |
|
|
|
/* The interrupt handler implements the timing synchronization, so |
|
* setup its state. |
|
*/ |
|
timing->flags |= VOICE_SYNC_TIMING; |
|
timing->sync_base = voice->ctrl_base; |
|
timing->sync_cso = runtime->period_size; |
|
timing->sync_period_size = runtime->period_size; |
|
timing->sync_buffer_size = runtime->buffer_size; |
|
timing->period_size = period_size; |
|
timing->buffer_size = buffer_size; |
|
timing->sso = sso; |
|
timing->vperiod = vperiod; |
|
|
|
/* Using unsigned samples with the all-zero silence buffer |
|
* forces the output to the lower rail, killing playback. |
|
* So ignore unsigned vs signed -- it doesn't change the timing. |
|
*/ |
|
format = 0; |
|
if (snd_pcm_format_width(runtime->format) == 8) |
|
format = SIS_CAPTURE_DMA_FORMAT_8BIT; |
|
if (runtime->channels == 1) |
|
format |= SIS_CAPTURE_DMA_FORMAT_MONO; |
|
|
|
control = timing->buffer_size - 1; |
|
control |= SIS_PLAY_DMA_LOOP | SIS_PLAY_DMA_INTR_AT_SSO; |
|
sso_eso = timing->buffer_size - 1; |
|
sso_eso |= timing->sso << 16; |
|
|
|
delta = sis_rate_to_delta(runtime->rate); |
|
|
|
/* We've done the math, now configure the channel. |
|
*/ |
|
writel(format, play_base + SIS_PLAY_DMA_FORMAT_CSO); |
|
writel(sis->silence_dma_addr, play_base + SIS_PLAY_DMA_BASE); |
|
writel(control, play_base + SIS_PLAY_DMA_CONTROL); |
|
writel(sso_eso, play_base + SIS_PLAY_DMA_SSO_ESO); |
|
|
|
for (reg = 0; reg < SIS_WAVE_SIZE; reg += 4) |
|
writel(0, wave_base + reg); |
|
|
|
writel(SIS_WAVE_GENERAL_WAVE_VOLUME, wave_base + SIS_WAVE_GENERAL); |
|
writel(delta << 16, wave_base + SIS_WAVE_GENERAL_ARTICULATION); |
|
writel(SIS_WAVE_CHANNEL_CONTROL_FIRST_SAMPLE | |
|
SIS_WAVE_CHANNEL_CONTROL_AMP_ENABLE | |
|
SIS_WAVE_CHANNEL_CONTROL_INTERPOLATE_ENABLE, |
|
wave_base + SIS_WAVE_CHANNEL_CONTROL); |
|
} |
|
|
|
static int sis_pcm_capture_prepare(struct snd_pcm_substream *substream) |
|
{ |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
struct voice *voice = runtime->private_data; |
|
void __iomem *rec_base = voice->ctrl_base; |
|
u32 format, dma_addr, control; |
|
u16 leo; |
|
|
|
/* We rely on the PCM core to ensure that the parameters for this |
|
* substream do not change on us while we're programming the HW. |
|
*/ |
|
format = 0; |
|
if (snd_pcm_format_width(runtime->format) == 8) |
|
format = SIS_CAPTURE_DMA_FORMAT_8BIT; |
|
if (!snd_pcm_format_signed(runtime->format)) |
|
format |= SIS_CAPTURE_DMA_FORMAT_UNSIGNED; |
|
if (runtime->channels == 1) |
|
format |= SIS_CAPTURE_DMA_FORMAT_MONO; |
|
|
|
dma_addr = runtime->dma_addr; |
|
leo = runtime->buffer_size - 1; |
|
control = leo | SIS_CAPTURE_DMA_LOOP; |
|
|
|
/* If we've got more than two periods per buffer, then we have |
|
* use a timing voice to clock out the periods. Otherwise, we can |
|
* use the capture channel's interrupts. |
|
*/ |
|
if (voice->timing) { |
|
sis_prepare_timing_voice(voice, substream); |
|
} else { |
|
control |= SIS_CAPTURE_DMA_INTR_AT_LEO; |
|
if (runtime->period_size != runtime->buffer_size) |
|
control |= SIS_CAPTURE_DMA_INTR_AT_MLP; |
|
} |
|
|
|
writel(format, rec_base + SIS_CAPTURE_DMA_FORMAT_CSO); |
|
writel(dma_addr, rec_base + SIS_CAPTURE_DMA_BASE); |
|
writel(control, rec_base + SIS_CAPTURE_DMA_CONTROL); |
|
|
|
/* Force the writes to post. */ |
|
readl(rec_base); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct snd_pcm_ops sis_playback_ops = { |
|
.open = sis_playback_open, |
|
.close = sis_substream_close, |
|
.prepare = sis_pcm_playback_prepare, |
|
.trigger = sis_pcm_trigger, |
|
.pointer = sis_pcm_pointer, |
|
}; |
|
|
|
static const struct snd_pcm_ops sis_capture_ops = { |
|
.open = sis_capture_open, |
|
.close = sis_substream_close, |
|
.hw_params = sis_capture_hw_params, |
|
.prepare = sis_pcm_capture_prepare, |
|
.trigger = sis_pcm_trigger, |
|
.pointer = sis_pcm_pointer, |
|
}; |
|
|
|
static int sis_pcm_create(struct sis7019 *sis) |
|
{ |
|
struct snd_pcm *pcm; |
|
int rc; |
|
|
|
/* We have 64 voices, and the driver currently records from |
|
* only one channel, though that could change in the future. |
|
*/ |
|
rc = snd_pcm_new(sis->card, "SiS7019", 0, 64, 1, &pcm); |
|
if (rc) |
|
return rc; |
|
|
|
pcm->private_data = sis; |
|
strcpy(pcm->name, "SiS7019"); |
|
sis->pcm = pcm; |
|
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &sis_playback_ops); |
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &sis_capture_ops); |
|
|
|
/* Try to preallocate some memory, but it's not the end of the |
|
* world if this fails. |
|
*/ |
|
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, |
|
&sis->pci->dev, 64*1024, 128*1024); |
|
|
|
return 0; |
|
} |
|
|
|
static unsigned short sis_ac97_rw(struct sis7019 *sis, int codec, u32 cmd) |
|
{ |
|
unsigned long io = sis->ioport; |
|
unsigned short val = 0xffff; |
|
u16 status; |
|
u16 rdy; |
|
int count; |
|
static const u16 codec_ready[3] = { |
|
SIS_AC97_STATUS_CODEC_READY, |
|
SIS_AC97_STATUS_CODEC2_READY, |
|
SIS_AC97_STATUS_CODEC3_READY, |
|
}; |
|
|
|
rdy = codec_ready[codec]; |
|
|
|
|
|
/* Get the AC97 semaphore -- software first, so we don't spin |
|
* pounding out IO reads on the hardware semaphore... |
|
*/ |
|
mutex_lock(&sis->ac97_mutex); |
|
|
|
count = 0xffff; |
|
while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) |
|
udelay(1); |
|
|
|
if (!count) |
|
goto timeout; |
|
|
|
/* ... and wait for any outstanding commands to complete ... |
|
*/ |
|
count = 0xffff; |
|
do { |
|
status = inw(io + SIS_AC97_STATUS); |
|
if ((status & rdy) && !(status & SIS_AC97_STATUS_BUSY)) |
|
break; |
|
|
|
udelay(1); |
|
} while (--count); |
|
|
|
if (!count) |
|
goto timeout_sema; |
|
|
|
/* ... before sending our command and waiting for it to finish ... |
|
*/ |
|
outl(cmd, io + SIS_AC97_CMD); |
|
udelay(10); |
|
|
|
count = 0xffff; |
|
while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) |
|
udelay(1); |
|
|
|
/* ... and reading the results (if any). |
|
*/ |
|
val = inl(io + SIS_AC97_CMD) >> 16; |
|
|
|
timeout_sema: |
|
outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); |
|
timeout: |
|
mutex_unlock(&sis->ac97_mutex); |
|
|
|
if (!count) { |
|
dev_err(&sis->pci->dev, "ac97 codec %d timeout cmd 0x%08x\n", |
|
codec, cmd); |
|
} |
|
|
|
return val; |
|
} |
|
|
|
static void sis_ac97_write(struct snd_ac97 *ac97, unsigned short reg, |
|
unsigned short val) |
|
{ |
|
static const u32 cmd[3] = { |
|
SIS_AC97_CMD_CODEC_WRITE, |
|
SIS_AC97_CMD_CODEC2_WRITE, |
|
SIS_AC97_CMD_CODEC3_WRITE, |
|
}; |
|
sis_ac97_rw(ac97->private_data, ac97->num, |
|
(val << 16) | (reg << 8) | cmd[ac97->num]); |
|
} |
|
|
|
static unsigned short sis_ac97_read(struct snd_ac97 *ac97, unsigned short reg) |
|
{ |
|
static const u32 cmd[3] = { |
|
SIS_AC97_CMD_CODEC_READ, |
|
SIS_AC97_CMD_CODEC2_READ, |
|
SIS_AC97_CMD_CODEC3_READ, |
|
}; |
|
return sis_ac97_rw(ac97->private_data, ac97->num, |
|
(reg << 8) | cmd[ac97->num]); |
|
} |
|
|
|
static int sis_mixer_create(struct sis7019 *sis) |
|
{ |
|
struct snd_ac97_bus *bus; |
|
struct snd_ac97_template ac97; |
|
static const struct snd_ac97_bus_ops ops = { |
|
.write = sis_ac97_write, |
|
.read = sis_ac97_read, |
|
}; |
|
int rc; |
|
|
|
memset(&ac97, 0, sizeof(ac97)); |
|
ac97.private_data = sis; |
|
|
|
rc = snd_ac97_bus(sis->card, 0, &ops, NULL, &bus); |
|
if (!rc && sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) |
|
rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[0]); |
|
ac97.num = 1; |
|
if (!rc && (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT)) |
|
rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[1]); |
|
ac97.num = 2; |
|
if (!rc && (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT)) |
|
rc = snd_ac97_mixer(bus, &ac97, &sis->ac97[2]); |
|
|
|
/* If we return an error here, then snd_card_free() should |
|
* free up any ac97 codecs that got created, as well as the bus. |
|
*/ |
|
return rc; |
|
} |
|
|
|
static void sis_free_suspend(struct sis7019 *sis) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < SIS_SUSPEND_PAGES; i++) |
|
kfree(sis->suspend_state[i]); |
|
} |
|
|
|
static int sis_chip_free(struct sis7019 *sis) |
|
{ |
|
/* Reset the chip, and disable all interrputs. |
|
*/ |
|
outl(SIS_GCR_SOFTWARE_RESET, sis->ioport + SIS_GCR); |
|
udelay(25); |
|
outl(0, sis->ioport + SIS_GCR); |
|
outl(0, sis->ioport + SIS_GIER); |
|
|
|
/* Now, free everything we allocated. |
|
*/ |
|
if (sis->irq >= 0) |
|
free_irq(sis->irq, sis); |
|
|
|
iounmap(sis->ioaddr); |
|
pci_release_regions(sis->pci); |
|
pci_disable_device(sis->pci); |
|
sis_free_suspend(sis); |
|
return 0; |
|
} |
|
|
|
static int sis_dev_free(struct snd_device *dev) |
|
{ |
|
struct sis7019 *sis = dev->device_data; |
|
return sis_chip_free(sis); |
|
} |
|
|
|
static int sis_chip_init(struct sis7019 *sis) |
|
{ |
|
unsigned long io = sis->ioport; |
|
void __iomem *ioaddr = sis->ioaddr; |
|
unsigned long timeout; |
|
u16 status; |
|
int count; |
|
int i; |
|
|
|
/* Reset the audio controller |
|
*/ |
|
outl(SIS_GCR_SOFTWARE_RESET, io + SIS_GCR); |
|
udelay(25); |
|
outl(0, io + SIS_GCR); |
|
|
|
/* Get the AC-link semaphore, and reset the codecs |
|
*/ |
|
count = 0xffff; |
|
while ((inw(io + SIS_AC97_SEMA) & SIS_AC97_SEMA_BUSY) && --count) |
|
udelay(1); |
|
|
|
if (!count) |
|
return -EIO; |
|
|
|
outl(SIS_AC97_CMD_CODEC_COLD_RESET, io + SIS_AC97_CMD); |
|
udelay(250); |
|
|
|
count = 0xffff; |
|
while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count) |
|
udelay(1); |
|
|
|
/* Command complete, we can let go of the semaphore now. |
|
*/ |
|
outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA); |
|
if (!count) |
|
return -EIO; |
|
|
|
/* Now that we've finished the reset, find out what's attached. |
|
* There are some codec/board combinations that take an extremely |
|
* long time to come up. 350+ ms has been observed in the field, |
|
* so we'll give them up to 500ms. |
|
*/ |
|
sis->codecs_present = 0; |
|
timeout = msecs_to_jiffies(500) + jiffies; |
|
while (time_before_eq(jiffies, timeout)) { |
|
status = inl(io + SIS_AC97_STATUS); |
|
if (status & SIS_AC97_STATUS_CODEC_READY) |
|
sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT; |
|
if (status & SIS_AC97_STATUS_CODEC2_READY) |
|
sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT; |
|
if (status & SIS_AC97_STATUS_CODEC3_READY) |
|
sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT; |
|
|
|
if (sis->codecs_present == codecs) |
|
break; |
|
|
|
msleep(1); |
|
} |
|
|
|
/* All done, check for errors. |
|
*/ |
|
if (!sis->codecs_present) { |
|
dev_err(&sis->pci->dev, "could not find any codecs\n"); |
|
return -EIO; |
|
} |
|
|
|
if (sis->codecs_present != codecs) { |
|
dev_warn(&sis->pci->dev, "missing codecs, found %0x, expected %0x\n", |
|
sis->codecs_present, codecs); |
|
} |
|
|
|
/* Let the hardware know that the audio driver is alive, |
|
* and enable PCM slots on the AC-link for L/R playback (3 & 4) and |
|
* record channels. We're going to want to use Variable Rate Audio |
|
* for recording, to avoid needlessly resampling from 48kHZ. |
|
*/ |
|
outl(SIS_AC97_CONF_AUDIO_ALIVE, io + SIS_AC97_CONF); |
|
outl(SIS_AC97_CONF_AUDIO_ALIVE | SIS_AC97_CONF_PCM_LR_ENABLE | |
|
SIS_AC97_CONF_PCM_CAP_MIC_ENABLE | |
|
SIS_AC97_CONF_PCM_CAP_LR_ENABLE | |
|
SIS_AC97_CONF_CODEC_VRA_ENABLE, io + SIS_AC97_CONF); |
|
|
|
/* All AC97 PCM slots should be sourced from sub-mixer 0. |
|
*/ |
|
outl(0, io + SIS_AC97_PSR); |
|
|
|
/* There is only one valid DMA setup for a PCI environment. |
|
*/ |
|
outl(SIS_DMA_CSR_PCI_SETTINGS, io + SIS_DMA_CSR); |
|
|
|
/* Reset the synchronization groups for all of the channels |
|
* to be asynchronous. If we start doing SPDIF or 5.1 sound, etc. |
|
* we'll need to change how we handle these. Until then, we just |
|
* assign sub-mixer 0 to all playback channels, and avoid any |
|
* attenuation on the audio. |
|
*/ |
|
outl(0, io + SIS_PLAY_SYNC_GROUP_A); |
|
outl(0, io + SIS_PLAY_SYNC_GROUP_B); |
|
outl(0, io + SIS_PLAY_SYNC_GROUP_C); |
|
outl(0, io + SIS_PLAY_SYNC_GROUP_D); |
|
outl(0, io + SIS_MIXER_SYNC_GROUP); |
|
|
|
for (i = 0; i < 64; i++) { |
|
writel(i, SIS_MIXER_START_ADDR(ioaddr, i)); |
|
writel(SIS_MIXER_RIGHT_NO_ATTEN | SIS_MIXER_LEFT_NO_ATTEN | |
|
SIS_MIXER_DEST_0, SIS_MIXER_ADDR(ioaddr, i)); |
|
} |
|
|
|
/* Don't attenuate any audio set for the wave amplifier. |
|
* |
|
* FIXME: Maximum attenuation is set for the music amp, which will |
|
* need to change if we start using the synth engine. |
|
*/ |
|
outl(0xffff0000, io + SIS_WEVCR); |
|
|
|
/* Ensure that the wave engine is in normal operating mode. |
|
*/ |
|
outl(0, io + SIS_WECCR); |
|
|
|
/* Go ahead and enable the DMA interrupts. They won't go live |
|
* until we start a channel. |
|
*/ |
|
outl(SIS_GIER_AUDIO_PLAY_DMA_IRQ_ENABLE | |
|
SIS_GIER_AUDIO_RECORD_DMA_IRQ_ENABLE, io + SIS_GIER); |
|
|
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
static int sis_suspend(struct device *dev) |
|
{ |
|
struct snd_card *card = dev_get_drvdata(dev); |
|
struct sis7019 *sis = card->private_data; |
|
void __iomem *ioaddr = sis->ioaddr; |
|
int i; |
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
|
if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) |
|
snd_ac97_suspend(sis->ac97[0]); |
|
if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) |
|
snd_ac97_suspend(sis->ac97[1]); |
|
if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) |
|
snd_ac97_suspend(sis->ac97[2]); |
|
|
|
/* snd_pcm_suspend_all() stopped all channels, so we're quiescent. |
|
*/ |
|
if (sis->irq >= 0) { |
|
free_irq(sis->irq, sis); |
|
sis->irq = -1; |
|
} |
|
|
|
/* Save the internal state away |
|
*/ |
|
for (i = 0; i < 4; i++) { |
|
memcpy_fromio(sis->suspend_state[i], ioaddr, 4096); |
|
ioaddr += 4096; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int sis_resume(struct device *dev) |
|
{ |
|
struct pci_dev *pci = to_pci_dev(dev); |
|
struct snd_card *card = dev_get_drvdata(dev); |
|
struct sis7019 *sis = card->private_data; |
|
void __iomem *ioaddr = sis->ioaddr; |
|
int i; |
|
|
|
if (sis_chip_init(sis)) { |
|
dev_err(&pci->dev, "unable to re-init controller\n"); |
|
goto error; |
|
} |
|
|
|
if (request_irq(pci->irq, sis_interrupt, IRQF_SHARED, |
|
KBUILD_MODNAME, sis)) { |
|
dev_err(&pci->dev, "unable to regain IRQ %d\n", pci->irq); |
|
goto error; |
|
} |
|
|
|
/* Restore saved state, then clear out the page we use for the |
|
* silence buffer. |
|
*/ |
|
for (i = 0; i < 4; i++) { |
|
memcpy_toio(ioaddr, sis->suspend_state[i], 4096); |
|
ioaddr += 4096; |
|
} |
|
|
|
memset(sis->suspend_state[0], 0, 4096); |
|
|
|
sis->irq = pci->irq; |
|
|
|
if (sis->codecs_present & SIS_PRIMARY_CODEC_PRESENT) |
|
snd_ac97_resume(sis->ac97[0]); |
|
if (sis->codecs_present & SIS_SECONDARY_CODEC_PRESENT) |
|
snd_ac97_resume(sis->ac97[1]); |
|
if (sis->codecs_present & SIS_TERTIARY_CODEC_PRESENT) |
|
snd_ac97_resume(sis->ac97[2]); |
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
|
return 0; |
|
|
|
error: |
|
snd_card_disconnect(card); |
|
return -EIO; |
|
} |
|
|
|
static SIMPLE_DEV_PM_OPS(sis_pm, sis_suspend, sis_resume); |
|
#define SIS_PM_OPS &sis_pm |
|
#else |
|
#define SIS_PM_OPS NULL |
|
#endif /* CONFIG_PM_SLEEP */ |
|
|
|
static int sis_alloc_suspend(struct sis7019 *sis) |
|
{ |
|
int i; |
|
|
|
/* We need 16K to store the internal wave engine state during a |
|
* suspend, but we don't need it to be contiguous, so play nice |
|
* with the memory system. We'll also use this area for a silence |
|
* buffer. |
|
*/ |
|
for (i = 0; i < SIS_SUSPEND_PAGES; i++) { |
|
sis->suspend_state[i] = kmalloc(4096, GFP_KERNEL); |
|
if (!sis->suspend_state[i]) |
|
return -ENOMEM; |
|
} |
|
memset(sis->suspend_state[0], 0, 4096); |
|
|
|
return 0; |
|
} |
|
|
|
static int sis_chip_create(struct snd_card *card, |
|
struct pci_dev *pci) |
|
{ |
|
struct sis7019 *sis = card->private_data; |
|
struct voice *voice; |
|
static const struct snd_device_ops ops = { |
|
.dev_free = sis_dev_free, |
|
}; |
|
int rc; |
|
int i; |
|
|
|
rc = pci_enable_device(pci); |
|
if (rc) |
|
goto error_out; |
|
|
|
rc = dma_set_mask(&pci->dev, DMA_BIT_MASK(30)); |
|
if (rc < 0) { |
|
dev_err(&pci->dev, "architecture does not support 30-bit PCI busmaster DMA"); |
|
goto error_out_enabled; |
|
} |
|
|
|
memset(sis, 0, sizeof(*sis)); |
|
mutex_init(&sis->ac97_mutex); |
|
spin_lock_init(&sis->voice_lock); |
|
sis->card = card; |
|
sis->pci = pci; |
|
sis->irq = -1; |
|
sis->ioport = pci_resource_start(pci, 0); |
|
|
|
rc = pci_request_regions(pci, "SiS7019"); |
|
if (rc) { |
|
dev_err(&pci->dev, "unable request regions\n"); |
|
goto error_out_enabled; |
|
} |
|
|
|
rc = -EIO; |
|
sis->ioaddr = ioremap(pci_resource_start(pci, 1), 0x4000); |
|
if (!sis->ioaddr) { |
|
dev_err(&pci->dev, "unable to remap MMIO, aborting\n"); |
|
goto error_out_cleanup; |
|
} |
|
|
|
rc = sis_alloc_suspend(sis); |
|
if (rc < 0) { |
|
dev_err(&pci->dev, "unable to allocate state storage\n"); |
|
goto error_out_cleanup; |
|
} |
|
|
|
rc = sis_chip_init(sis); |
|
if (rc) |
|
goto error_out_cleanup; |
|
|
|
rc = request_irq(pci->irq, sis_interrupt, IRQF_SHARED, KBUILD_MODNAME, |
|
sis); |
|
if (rc) { |
|
dev_err(&pci->dev, "unable to allocate irq %d\n", sis->irq); |
|
goto error_out_cleanup; |
|
} |
|
|
|
sis->irq = pci->irq; |
|
card->sync_irq = sis->irq; |
|
pci_set_master(pci); |
|
|
|
for (i = 0; i < 64; i++) { |
|
voice = &sis->voices[i]; |
|
voice->num = i; |
|
voice->ctrl_base = SIS_PLAY_DMA_ADDR(sis->ioaddr, i); |
|
voice->wave_base = SIS_WAVE_ADDR(sis->ioaddr, i); |
|
} |
|
|
|
voice = &sis->capture_voice; |
|
voice->flags = VOICE_CAPTURE; |
|
voice->num = SIS_CAPTURE_CHAN_AC97_PCM_IN; |
|
voice->ctrl_base = SIS_CAPTURE_DMA_ADDR(sis->ioaddr, voice->num); |
|
|
|
rc = snd_device_new(card, SNDRV_DEV_LOWLEVEL, sis, &ops); |
|
if (rc) |
|
goto error_out_cleanup; |
|
|
|
return 0; |
|
|
|
error_out_cleanup: |
|
sis_chip_free(sis); |
|
|
|
error_out_enabled: |
|
pci_disable_device(pci); |
|
|
|
error_out: |
|
return rc; |
|
} |
|
|
|
static int snd_sis7019_probe(struct pci_dev *pci, |
|
const struct pci_device_id *pci_id) |
|
{ |
|
struct snd_card *card; |
|
struct sis7019 *sis; |
|
int rc; |
|
|
|
rc = -ENOENT; |
|
if (!enable) |
|
goto error_out; |
|
|
|
/* The user can specify which codecs should be present so that we |
|
* can wait for them to show up if they are slow to recover from |
|
* the AC97 cold reset. We default to a single codec, the primary. |
|
* |
|
* We assume that SIS_PRIMARY_*_PRESENT matches bits 0-2. |
|
*/ |
|
codecs &= SIS_PRIMARY_CODEC_PRESENT | SIS_SECONDARY_CODEC_PRESENT | |
|
SIS_TERTIARY_CODEC_PRESENT; |
|
if (!codecs) |
|
codecs = SIS_PRIMARY_CODEC_PRESENT; |
|
|
|
rc = snd_card_new(&pci->dev, index, id, THIS_MODULE, |
|
sizeof(*sis), &card); |
|
if (rc < 0) |
|
goto error_out; |
|
|
|
strcpy(card->driver, "SiS7019"); |
|
strcpy(card->shortname, "SiS7019"); |
|
rc = sis_chip_create(card, pci); |
|
if (rc) |
|
goto card_error_out; |
|
|
|
sis = card->private_data; |
|
|
|
rc = sis_mixer_create(sis); |
|
if (rc) |
|
goto card_error_out; |
|
|
|
rc = sis_pcm_create(sis); |
|
if (rc) |
|
goto card_error_out; |
|
|
|
snprintf(card->longname, sizeof(card->longname), |
|
"%s Audio Accelerator with %s at 0x%lx, irq %d", |
|
card->shortname, snd_ac97_get_short_name(sis->ac97[0]), |
|
sis->ioport, sis->irq); |
|
|
|
rc = snd_card_register(card); |
|
if (rc) |
|
goto card_error_out; |
|
|
|
pci_set_drvdata(pci, card); |
|
return 0; |
|
|
|
card_error_out: |
|
snd_card_free(card); |
|
|
|
error_out: |
|
return rc; |
|
} |
|
|
|
static void snd_sis7019_remove(struct pci_dev *pci) |
|
{ |
|
snd_card_free(pci_get_drvdata(pci)); |
|
} |
|
|
|
static struct pci_driver sis7019_driver = { |
|
.name = KBUILD_MODNAME, |
|
.id_table = snd_sis7019_ids, |
|
.probe = snd_sis7019_probe, |
|
.remove = snd_sis7019_remove, |
|
.driver = { |
|
.pm = SIS_PM_OPS, |
|
}, |
|
}; |
|
|
|
module_pci_driver(sis7019_driver);
|
|
|