diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/sis7019.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/sis7019.c | 1502 |
1 files changed, 0 insertions, 1502 deletions
diff --git a/ANDROID_3.4.5/sound/pci/sis7019.c b/ANDROID_3.4.5/sound/pci/sis7019.c deleted file mode 100644 index ff500a87..00000000 --- a/ANDROID_3.4.5/sound/pci/sis7019.c +++ /dev/null @@ -1,1502 +0,0 @@ -/* - * Driver for SiS7019 Audio Accelerator - * - * Copyright (C) 2004-2007, David Dillow - * Written by David Dillow <dave@thedillows.org> - * Inspired by the Trident 4D-WaveDX/NX driver. - * - * All rights reserved. - * - * 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, version 2. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#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 <dave@thedillows.org>"); -MODULE_DESCRIPTION("SiS7019"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{SiS,SiS7019 Audio Accelerator}}"); - -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 DEFINE_PCI_DEVICE_TABLE(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 -#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 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 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 = (((rate << 12) + 24000) / 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 = pci_map_single(sis->pci, - sis->suspend_state[0], - 4096, PCI_DMA_TODEVICE); - 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) - pci_unmap_single(sis->pci, sis->silence_dma_addr, 4096, - PCI_DMA_TODEVICE); -} - -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_playback_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - return snd_pcm_lib_malloc_pages(substream, - params_buffer_bytes(hw_params)); -} - -static int sis_hw_free(struct snd_pcm_substream *substream) -{ - return snd_pcm_lib_free_pages(substream); -} - -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 = snd_pcm_lib_malloc_pages(substream, - params_buffer_bytes(hw_params)); - if (rc < 0) - 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 struct snd_pcm_ops sis_playback_ops = { - .open = sis_playback_open, - .close = sis_substream_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = sis_playback_hw_params, - .hw_free = sis_hw_free, - .prepare = sis_pcm_playback_prepare, - .trigger = sis_pcm_trigger, - .pointer = sis_pcm_pointer, -}; - -static struct snd_pcm_ops sis_capture_ops = { - .open = sis_capture_open, - .close = sis_substream_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = sis_capture_hw_params, - .hw_free = sis_hw_free, - .prepare = sis_pcm_capture_prepare, - .trigger = sis_pcm_trigger, - .pointer = sis_pcm_pointer, -}; - -static int __devinit 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_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - snd_dma_pci_data(sis->pci), 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 __devinit sis_mixer_create(struct sis7019 *sis) -{ - struct snd_ac97_bus *bus; - struct snd_ac97_template ac97; - static 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); - - if (sis->ioaddr) - 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 asyncronous. 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 -static int sis_suspend(struct pci_dev *pci, pm_message_t state) -{ - struct snd_card *card = pci_get_drvdata(pci); - struct sis7019 *sis = card->private_data; - void __iomem *ioaddr = sis->ioaddr; - int i; - - snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); - snd_pcm_suspend_all(sis->pcm); - 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; - } - - pci_disable_device(pci); - pci_save_state(pci); - pci_set_power_state(pci, pci_choose_state(pci, state)); - return 0; -} - -static int sis_resume(struct pci_dev *pci) -{ - struct snd_card *card = pci_get_drvdata(pci); - struct sis7019 *sis = card->private_data; - void __iomem *ioaddr = sis->ioaddr; - int i; - - pci_set_power_state(pci, PCI_D0); - pci_restore_state(pci); - - if (pci_enable_device(pci) < 0) { - dev_err(&pci->dev, "unable to re-enable device\n"); - goto error; - } - - 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; - pci_set_master(pci); - - 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; -} -#endif /* CONFIG_PM */ - -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 __devinit sis_chip_create(struct snd_card *card, - struct pci_dev *pci) -{ - struct sis7019 *sis = card->private_data; - struct voice *voice; - static struct snd_device_ops ops = { - .dev_free = sis_dev_free, - }; - int rc; - int i; - - rc = pci_enable_device(pci); - if (rc) - goto error_out; - - if (pci_set_dma_mask(pci, DMA_BIT_MASK(30)) < 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_nocache(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; - - if (request_irq(pci->irq, sis_interrupt, IRQF_SHARED, KBUILD_MODNAME, - sis)) { - dev_err(&pci->dev, "unable to allocate irq %d\n", sis->irq); - goto error_out_cleanup; - } - - sis->irq = pci->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; - - snd_card_set_dev(card, &pci->dev); - - return 0; - -error_out_cleanup: - sis_chip_free(sis); - -error_out_enabled: - pci_disable_device(pci); - -error_out: - return rc; -} - -static int __devinit 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_create(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 __devexit snd_sis7019_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); - pci_set_drvdata(pci, NULL); -} - -static struct pci_driver sis7019_driver = { - .name = KBUILD_MODNAME, - .id_table = snd_sis7019_ids, - .probe = snd_sis7019_probe, - .remove = __devexit_p(snd_sis7019_remove), - -#ifdef CONFIG_PM - .suspend = sis_suspend, - .resume = sis_resume, -#endif -}; - -static int __init sis7019_init(void) -{ - return pci_register_driver(&sis7019_driver); -} - -static void __exit sis7019_exit(void) -{ - pci_unregister_driver(&sis7019_driver); -} - -module_init(sis7019_init); -module_exit(sis7019_exit); |