diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/sparc/cs4231.c | 683 |
1 files changed, 342 insertions, 341 deletions
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c index 110d64d4848d..1f8d27a6152e 100644 --- a/sound/sparc/cs4231.c +++ b/sound/sparc/cs4231.c @@ -62,25 +62,36 @@ MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}"); #ifdef SBUS_SUPPORT -struct sbus_dma_info { +typedef struct sbus_dma_info { spinlock_t lock; int dir; void __iomem *regs; -}; +} sbus_dma_info_t; #endif -typedef struct snd_cs4231 { - spinlock_t lock; - void __iomem *port; +typedef struct snd_cs4231 cs4231_t; + +typedef struct cs4231_dma_control { + void (*prepare)(struct cs4231_dma_control *dma_cont, int dir); + void (*enable)(struct cs4231_dma_control *dma_cont, int on); + int (*request)(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len); + unsigned int (*address)(struct cs4231_dma_control *dma_cont); + void (*reset)(cs4231_t *chip); + void (*preallocate)(cs4231_t *chip, snd_pcm_t *pcm); #ifdef EBUS_SUPPORT - struct ebus_dma_info eb2c; - struct ebus_dma_info eb2p; + struct ebus_dma_info ebus_info; #endif - #ifdef SBUS_SUPPORT - struct sbus_dma_info sb2c; - struct sbus_dma_info sb2p; + struct sbus_dma_info sbus_info; #endif +} cs4231_dma_control_t; + +struct snd_cs4231 { + spinlock_t lock; + void __iomem *port; + + cs4231_dma_control_t p_dma; + cs4231_dma_control_t c_dma; u32 flags; #define CS4231_FLAG_EBUS 0x00000001 @@ -119,7 +130,7 @@ typedef struct snd_cs4231 { unsigned int irq[2]; unsigned int regs_size; struct snd_cs4231 *next; -} cs4231_t; +}; static cs4231_t *cs4231_list; @@ -494,103 +505,6 @@ static unsigned char snd_cs4231_in(cs4231_t *chip, unsigned char reg) } /* - * SBUS DMA routines - */ -#ifdef SBUS_SUPPORT - -int sbus_dma_request(struct sbus_dma_info *base, dma_addr_t bus_addr, size_t len) -{ - unsigned long flags; - u32 test, csr; - int err; - - if (len >= (1 << 24)) - return -EINVAL; - spin_lock_irqsave(&base->lock, flags); - csr = sbus_readl(base->regs + APCCSR); - err = -EINVAL; - test = APC_CDMA_READY; - if ( base->dir == APC_PLAY ) - test = APC_PDMA_READY; - if (!(csr & test)) - goto out; - err = -EBUSY; - csr = sbus_readl(base->regs + APCCSR); - test = APC_XINT_CNVA; - if ( base->dir == APC_PLAY ) - test = APC_XINT_PNVA; - if (!(csr & test)) - goto out; - err = 0; - sbus_writel(bus_addr, base->regs + base->dir + APCNVA); - sbus_writel(len, base->regs + base->dir + APCNC); -out: - spin_unlock_irqrestore(&base->lock, flags); - return err; -} - -void sbus_dma_prepare(struct sbus_dma_info *base) -{ - unsigned long flags; - u32 csr, test; - - spin_lock_irqsave(&base->lock, flags); - csr = sbus_readl(base->regs + APCCSR); - test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA | - APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL | - APC_XINT_PENA; - if ( base->dir == APC_RECORD ) - test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA | - APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL; - csr |= test; - sbus_writel(csr, base->regs + APCCSR); - spin_unlock_irqrestore(&base->lock, flags); -} - -void sbus_dma_enable(struct sbus_dma_info *base, int on) -{ - unsigned long flags; - u32 csr, shift; - - spin_lock_irqsave(&base->lock, flags); - if (!on) { - if (base->dir == APC_PLAY) { - sbus_writel(0, base->regs + base->dir + APCNVA); - sbus_writel(1, base->regs + base->dir + APCC); - } - else - { - sbus_writel(0, base->regs + base->dir + APCNC); - sbus_writel(0, base->regs + base->dir + APCVA); - } - } - udelay(500); - csr = sbus_readl(base->regs + APCCSR); - shift = 0; - if ( base->dir == APC_PLAY ) - shift = 1; - if (on) - csr &= ~(APC_CPAUSE << shift); - else - csr |= (APC_CPAUSE << shift); - sbus_writel(csr, base->regs + APCCSR); - if (on) - csr |= (APC_CDMA_READY << shift); - else - csr &= ~(APC_CDMA_READY << shift); - sbus_writel(csr, base->regs + APCCSR); - - spin_unlock_irqrestore(&base->lock, flags); -} - -unsigned int sbus_dma_addr(struct sbus_dma_info *base) -{ - return sbus_readl(base->regs + base->dir + APCVA); -} - -#endif - -/* * CS4231 detection / MCE routines */ @@ -688,8 +602,7 @@ static void snd_cs4231_mce_down(cs4231_t *chip) spin_unlock_irqrestore(&chip->lock, flags); } -#ifdef EBUS_SUPPORT -static void snd_cs4231_ebus_advance_dma(struct ebus_dma_info *p, snd_pcm_substream_t *substream, unsigned int *periods_sent) +static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont, snd_pcm_substream_t *substream, unsigned int *periods_sent) { snd_pcm_runtime_t *runtime = substream->runtime; @@ -700,89 +613,41 @@ static void snd_cs4231_ebus_advance_dma(struct ebus_dma_info *p, snd_pcm_substre if (period_size >= (1 << 24)) BUG(); - if (ebus_dma_request(p, runtime->dma_addr + offset, period_size)) + if (dma_cont->request(dma_cont, runtime->dma_addr + offset, period_size)) return; (*periods_sent) = ((*periods_sent) + 1) % runtime->periods; } } -#endif - -#ifdef SBUS_SUPPORT -static void snd_cs4231_sbus_advance_dma(struct sbus_dma_info *p, snd_pcm_substream_t *substream, unsigned int *periods_sent) -{ - snd_pcm_runtime_t *runtime = substream->runtime; - - while (1) { - unsigned int period_size = snd_pcm_lib_period_bytes(substream); - unsigned int offset = period_size * (*periods_sent); - - if (period_size > 0xffff + 1) - BUG(); - - if (sbus_dma_request(p, runtime->dma_addr + offset, period_size)) - return; - (*periods_sent) = (*periods_sent + 1) % runtime->periods; - } -} -#endif static void cs4231_dma_trigger(snd_pcm_substream_t *substream, unsigned int what, int on) { cs4231_t *chip = snd_pcm_substream_chip(substream); + cs4231_dma_control_t *dma_cont; -#ifdef EBUS_SUPPORT - if (chip->flags & CS4231_FLAG_EBUS) { - if (what & CS4231_PLAYBACK_ENABLE) { - if (on) { - ebus_dma_prepare(&chip->eb2p, 0); - ebus_dma_enable(&chip->eb2p, 1); - snd_cs4231_ebus_advance_dma(&chip->eb2p, - chip->playback_substream, - &chip->p_periods_sent); - } else { - ebus_dma_enable(&chip->eb2p, 0); - } - } - if (what & CS4231_RECORD_ENABLE) { - if (on) { - ebus_dma_prepare(&chip->eb2c, 1); - ebus_dma_enable(&chip->eb2c, 1); - snd_cs4231_ebus_advance_dma(&chip->eb2c, - chip->capture_substream, - &chip->c_periods_sent); - } else { - ebus_dma_enable(&chip->eb2c, 0); - } - } - } else { -#endif -#ifdef SBUS_SUPPORT if (what & CS4231_PLAYBACK_ENABLE) { + dma_cont = &chip->p_dma; if (on) { - sbus_dma_prepare(&chip->sb2p); - sbus_dma_enable(&chip->sb2p, 1); - snd_cs4231_sbus_advance_dma(&chip->sb2p, + dma_cont->prepare(dma_cont, 0); + dma_cont->enable(dma_cont, 1); + snd_cs4231_advance_dma(dma_cont, chip->playback_substream, &chip->p_periods_sent); } else { - sbus_dma_enable(&chip->sb2p, 0); + dma_cont->enable(dma_cont, 0); } } if (what & CS4231_RECORD_ENABLE) { + dma_cont = &chip->c_dma; if (on) { - sbus_dma_prepare(&chip->sb2c); - sbus_dma_enable(&chip->sb2c, 1); - snd_cs4231_sbus_advance_dma(&chip->sb2c, + dma_cont->prepare(dma_cont, 1); + dma_cont->enable(dma_cont, 1); + snd_cs4231_advance_dma(dma_cont, chip->capture_substream, &chip->c_periods_sent); } else { - sbus_dma_enable(&chip->sb2c, 0); + dma_cont->enable(dma_cont, 0); } } -#endif -#ifdef EBUS_SUPPORT - } -#endif } static int snd_cs4231_trigger(snd_pcm_substream_t *substream, int cmd) @@ -1273,140 +1138,55 @@ static void snd_cs4231_overrange(cs4231_t *chip) chip->capture_substream->runtime->overrange++; } -#ifdef SBUS_SUPPORT -static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - unsigned long flags; - unsigned char status; - u32 csr; - cs4231_t *chip = dev_id; - - /*This is IRQ is not raised by the cs4231*/ - if (!(__cs4231_readb(chip, CS4231P(chip, STATUS)) & CS4231_GLOBALIRQ)) - return IRQ_NONE; - - /* ACK the APC interrupt. */ - csr = sbus_readl(chip->port + APCCSR); - - sbus_writel(csr, chip->port + APCCSR); - - if ((chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) && - (csr & APC_PLAY_INT) && - (csr & APC_XINT_PNVA) && - !(csr & APC_XINT_EMPT)) { - snd_pcm_period_elapsed(chip->playback_substream); - snd_cs4231_sbus_advance_dma(&chip->sb2p, chip->playback_substream, - &chip->p_periods_sent); - } - - if ((chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) && - (csr & APC_CAPT_INT) && - (csr & APC_XINT_CNVA) && - !(csr & APC_XINT_EMPT)) { - snd_pcm_period_elapsed(chip->capture_substream); - snd_cs4231_sbus_advance_dma(&chip->sb2c,chip->capture_substream, - &chip->c_periods_sent); - } - - status = snd_cs4231_in(chip, CS4231_IRQ_STATUS); - - if (status & CS4231_TIMER_IRQ) { - if (chip->timer) - snd_timer_interrupt(chip->timer, chip->timer->sticks); - } - - if (status & CS4231_RECORD_IRQ) - snd_cs4231_overrange(chip); - - /* ACK the CS4231 interrupt. */ - spin_lock_irqsave(&chip->lock, flags); - snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0); - spin_unlock_irqrestore(&chip->lock, flags); - - return 0; -} -#endif - -#ifdef EBUS_SUPPORT -static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, void *cookie) +static void snd_cs4231_play_callback(cs4231_t *cookie) { cs4231_t *chip = cookie; if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) { snd_pcm_period_elapsed(chip->playback_substream); - snd_cs4231_ebus_advance_dma(p, chip->playback_substream, + snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream, &chip->p_periods_sent); } } -static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, int event, void *cookie) +static void snd_cs4231_capture_callback(cs4231_t *cookie) { cs4231_t *chip = cookie; if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) { snd_pcm_period_elapsed(chip->capture_substream); - snd_cs4231_ebus_advance_dma(p, chip->capture_substream, + snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream, &chip->c_periods_sent); } } -#endif static snd_pcm_uframes_t snd_cs4231_playback_pointer(snd_pcm_substream_t *substream) { cs4231_t *chip = snd_pcm_substream_chip(substream); + cs4231_dma_control_t *dma_cont = &chip->p_dma; size_t ptr; -#ifdef EBUS_SUPPORT - size_t residue, period_bytes; -#endif if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) return 0; -#ifdef EBUS_SUPPORT - period_bytes = snd_pcm_lib_period_bytes(substream); - ptr = period_bytes * chip->p_periods_sent; - if (chip->flags & CS4231_FLAG_EBUS) { - residue = ebus_dma_residue(&chip->eb2p); - ptr += period_bytes - residue; - } else { -#endif -#ifdef SBUS_SUPPORT - ptr = sbus_dma_addr(&chip->sb2p); - if (ptr != 0) - ptr -= substream->runtime->dma_addr; -#endif -#ifdef EBUS_SUPPORT - } -#endif - + ptr = dma_cont->address(dma_cont); + if (ptr != 0) + ptr -= substream->runtime->dma_addr; + return bytes_to_frames(substream->runtime, ptr); } static snd_pcm_uframes_t snd_cs4231_capture_pointer(snd_pcm_substream_t * substream) { cs4231_t *chip = snd_pcm_substream_chip(substream); + cs4231_dma_control_t *dma_cont = &chip->c_dma; size_t ptr; -#ifdef EBUS_SUPPORT - size_t residue, period_bytes; -#endif if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)) return 0; -#ifdef EBUS_SUPPORT - period_bytes = snd_pcm_lib_period_bytes(substream); - ptr = period_bytes * chip->c_periods_sent; - if (chip->flags & CS4231_FLAG_EBUS) { - residue = ebus_dma_residue(&chip->eb2c); - ptr += period_bytes - residue; - } else { -#endif -#ifdef SBUS_SUPPORT - ptr = sbus_dma_addr(&chip->sb2c); - if (ptr != 0) - ptr -= substream->runtime->dma_addr; -#endif -#ifdef EBUS_SUPPORT - } -#endif + ptr = dma_cont->address(dma_cont); + if (ptr != 0) + ptr -= substream->runtime->dma_addr; + return bytes_to_frames(substream->runtime, ptr); } @@ -1442,30 +1222,8 @@ static int snd_cs4231_probe(cs4231_t *chip) spin_lock_irqsave(&chip->lock, flags); - /* Reset DMA engine. */ -#ifdef EBUS_SUPPORT - if (chip->flags & CS4231_FLAG_EBUS) { - /* Done by ebus_dma_register */ - } else { -#endif -#ifdef SBUS_SUPPORT - sbus_writel(APC_CHIP_RESET, chip->port + APCCSR); - sbus_writel(0x00, chip->port + APCCSR); - sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET, - chip->port + APCCSR); - - udelay(20); - - sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET, - chip->port + APCCSR); - sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA | - APC_XINT_PENA | - APC_XINT_CENA), - chip->port + APCCSR); -#endif -#ifdef EBUS_SUPPORT - } -#endif + /* Reset DMA engine (sbus only). */ + chip->p_dma.reset(chip); __cs4231_readb(chip, CS4231P(chip, STATUS)); /* clear any pendings IRQ */ __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); @@ -1585,8 +1343,8 @@ static int snd_cs4231_playback_close(snd_pcm_substream_t *substream) { cs4231_t *chip = snd_pcm_substream_chip(substream); - chip->playback_substream = NULL; snd_cs4231_close(chip, CS4231_MODE_PLAY); + chip->playback_substream = NULL; return 0; } @@ -1595,8 +1353,8 @@ static int snd_cs4231_capture_close(snd_pcm_substream_t *substream) { cs4231_t *chip = snd_pcm_substream_chip(substream); - chip->capture_substream = NULL; snd_cs4231_close(chip, CS4231_MODE_RECORD); + chip->capture_substream = NULL; return 0; } @@ -1651,21 +1409,7 @@ int snd_cs4231_pcm(cs4231_t *chip) pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX; strcpy(pcm->name, "CS4231"); -#ifdef EBUS_SUPPORT - if (chip->flags & CS4231_FLAG_EBUS) { - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, - snd_dma_pci_data(chip->dev_u.pdev), - 64*1024, 128*1024); - } else { -#endif -#ifdef SBUS_SUPPORT - snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS, - snd_dma_sbus_data(chip->dev_u.sdev), - 64*1024, 128*1024); -#endif -#ifdef EBUS_SUPPORT - } -#endif + chip->p_dma.preallocate(chip, pcm); chip->pcm = pcm; @@ -2022,6 +1766,180 @@ out_err: } #ifdef SBUS_SUPPORT + +static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + unsigned long flags; + unsigned char status; + u32 csr; + cs4231_t *chip = dev_id; + + /*This is IRQ is not raised by the cs4231*/ + if (!(__cs4231_readb(chip, CS4231P(chip, STATUS)) & CS4231_GLOBALIRQ)) + return IRQ_NONE; + + /* ACK the APC interrupt. */ + csr = sbus_readl(chip->port + APCCSR); + + sbus_writel(csr, chip->port + APCCSR); + + if ((csr & APC_PDMA_READY) && + (csr & APC_PLAY_INT) && + (csr & APC_XINT_PNVA) && + !(csr & APC_XINT_EMPT)) + snd_cs4231_play_callback(chip); + + if ((csr & APC_CDMA_READY) && + (csr & APC_CAPT_INT) && + (csr & APC_XINT_CNVA) && + !(csr & APC_XINT_EMPT)) + snd_cs4231_capture_callback(chip); + + status = snd_cs4231_in(chip, CS4231_IRQ_STATUS); + + if (status & CS4231_TIMER_IRQ) { + if (chip->timer) + snd_timer_interrupt(chip->timer, chip->timer->sticks); + } + + if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY)) + snd_cs4231_overrange(chip); + + /* ACK the CS4231 interrupt. */ + spin_lock_irqsave(&chip->lock, flags); + snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0); + spin_unlock_irqrestore(&chip->lock, flags); + + return 0; +} + +/* + * SBUS DMA routines + */ + +int sbus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len) +{ + unsigned long flags; + u32 test, csr; + int err; + sbus_dma_info_t *base = &dma_cont->sbus_info; + + if (len >= (1 << 24)) + return -EINVAL; + spin_lock_irqsave(&base->lock, flags); + csr = sbus_readl(base->regs + APCCSR); + err = -EINVAL; + test = APC_CDMA_READY; + if ( base->dir == APC_PLAY ) + test = APC_PDMA_READY; + if (!(csr & test)) + goto out; + err = -EBUSY; + csr = sbus_readl(base->regs + APCCSR); + test = APC_XINT_CNVA; + if ( base->dir == APC_PLAY ) + test = APC_XINT_PNVA; + if (!(csr & test)) + goto out; + err = 0; + sbus_writel(bus_addr, base->regs + base->dir + APCNVA); + sbus_writel(len, base->regs + base->dir + APCNC); +out: + spin_unlock_irqrestore(&base->lock, flags); + return err; +} + +void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d) +{ + unsigned long flags; + u32 csr, test; + sbus_dma_info_t *base = &dma_cont->sbus_info; + + spin_lock_irqsave(&base->lock, flags); + csr = sbus_readl(base->regs + APCCSR); + test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA | + APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL | + APC_XINT_PENA; + if ( base->dir == APC_RECORD ) + test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA | + APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL; + csr |= test; + sbus_writel(csr, base->regs + APCCSR); + spin_unlock_irqrestore(&base->lock, flags); +} + +void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on) +{ + unsigned long flags; + u32 csr, shift; + sbus_dma_info_t *base = &dma_cont->sbus_info; + + spin_lock_irqsave(&base->lock, flags); + if (!on) { + if (base->dir == APC_PLAY) { + sbus_writel(0, base->regs + base->dir + APCNVA); + sbus_writel(1, base->regs + base->dir + APCC); + } + else + { + sbus_writel(0, base->regs + base->dir + APCNC); + sbus_writel(0, base->regs + base->dir + APCVA); + } + } + udelay(600); + csr = sbus_readl(base->regs + APCCSR); + shift = 0; + if ( base->dir == APC_PLAY ) + shift = 1; + if (on) + csr &= ~(APC_CPAUSE << shift); + else + csr |= (APC_CPAUSE << shift); + sbus_writel(csr, base->regs + APCCSR); + if (on) + csr |= (APC_CDMA_READY << shift); + else + csr &= ~(APC_CDMA_READY << shift); + sbus_writel(csr, base->regs + APCCSR); + + spin_unlock_irqrestore(&base->lock, flags); +} + +unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont) +{ + sbus_dma_info_t *base = &dma_cont->sbus_info; + + return sbus_readl(base->regs + base->dir + APCVA); +} + +void sbus_dma_reset(cs4231_t *chip) +{ + sbus_writel(APC_CHIP_RESET, chip->port + APCCSR); + sbus_writel(0x00, chip->port + APCCSR); + sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET, + chip->port + APCCSR); + + udelay(20); + + sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET, + chip->port + APCCSR); + sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA | + APC_XINT_PENA | + APC_XINT_CENA), + chip->port + APCCSR); +} + +void sbus_dma_preallocate(cs4231_t *chip, snd_pcm_t *pcm) +{ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS, + snd_dma_sbus_data(chip->dev_u.sdev), + 64*1024, 128*1024); +} + +/* + * Init and exit routines + */ + static int snd_cs4231_sbus_free(cs4231_t *chip) { if (chip->irq[0]) @@ -2063,8 +1981,8 @@ static int __init snd_cs4231_sbus_create(snd_card_t *card, return -ENOMEM; spin_lock_init(&chip->lock); - spin_lock_init(&chip->sb2c.lock); - spin_lock_init(&chip->sb2p.lock); + spin_lock_init(&chip->c_dma.sbus_info.lock); + spin_lock_init(&chip->p_dma.sbus_info.lock); init_MUTEX(&chip->mce_mutex); init_MUTEX(&chip->open_mutex); chip->card = card; @@ -2080,10 +1998,24 @@ static int __init snd_cs4231_sbus_create(snd_card_t *card, return -EIO; } - chip->sb2c.regs = chip->port; - chip->sb2p.regs = chip->port; - chip->sb2c.dir = APC_RECORD; - chip->sb2p.dir = APC_PLAY; + chip->c_dma.sbus_info.regs = chip->port; + chip->p_dma.sbus_info.regs = chip->port; + chip->c_dma.sbus_info.dir = APC_RECORD; + chip->p_dma.sbus_info.dir = APC_PLAY; + + chip->p_dma.prepare = sbus_dma_prepare; + chip->p_dma.enable = sbus_dma_enable; + chip->p_dma.request = sbus_dma_request; + chip->p_dma.address = sbus_dma_addr; + chip->p_dma.reset = sbus_dma_reset; + chip->p_dma.preallocate = sbus_dma_preallocate; + + chip->c_dma.prepare = sbus_dma_prepare; + chip->c_dma.enable = sbus_dma_enable; + chip->c_dma.request = sbus_dma_request; + chip->c_dma.address = sbus_dma_addr; + chip->c_dma.reset = sbus_dma_reset; + chip->c_dma.preallocate = sbus_dma_preallocate; if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt, SA_SHIRQ, "cs4231", chip)) { @@ -2138,15 +2070,70 @@ static int cs4231_sbus_attach(struct sbus_dev *sdev) #endif #ifdef EBUS_SUPPORT + +static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, void *cookie) +{ + cs4231_t *chip = cookie; + + snd_cs4231_play_callback(chip); +} + +static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, int event, void *cookie) +{ + cs4231_t *chip = cookie; + + snd_cs4231_capture_callback(chip); +} + +/* + * EBUS DMA wrappers + */ + +int _ebus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len) +{ + return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len); +} + +void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on) +{ + ebus_dma_enable(&dma_cont->ebus_info, on); +} + +void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir) +{ + ebus_dma_prepare(&dma_cont->ebus_info, dir); +} + +unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont) +{ + return ebus_dma_addr(&dma_cont->ebus_info); +} + +void _ebus_dma_reset(cs4231_t *chip) +{ + return; +} + +void _ebus_dma_preallocate(cs4231_t *chip, snd_pcm_t *pcm) +{ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(chip->dev_u.pdev), + 64*1024, 128*1024); +} + +/* + * Init and exit routines + */ + static int snd_cs4231_ebus_free(cs4231_t *chip) { - if (chip->eb2c.regs) { - ebus_dma_unregister(&chip->eb2c); - iounmap(chip->eb2c.regs); + if (chip->c_dma.ebus_info.regs) { + ebus_dma_unregister(&chip->c_dma.ebus_info); + iounmap(chip->c_dma.ebus_info.regs); } - if (chip->eb2p.regs) { - ebus_dma_unregister(&chip->eb2p); - iounmap(chip->eb2p.regs); + if (chip->p_dma.ebus_info.regs) { + ebus_dma_unregister(&chip->p_dma.ebus_info); + iounmap(chip->p_dma.ebus_info.regs); } if (chip->port) @@ -2184,8 +2171,8 @@ static int __init snd_cs4231_ebus_create(snd_card_t *card, return -ENOMEM; spin_lock_init(&chip->lock); - spin_lock_init(&chip->eb2c.lock); - spin_lock_init(&chip->eb2p.lock); + spin_lock_init(&chip->c_dma.ebus_info.lock); + spin_lock_init(&chip->p_dma.ebus_info.lock); init_MUTEX(&chip->mce_mutex); init_MUTEX(&chip->open_mutex); chip->flags |= CS4231_FLAG_EBUS; @@ -2193,43 +2180,57 @@ static int __init snd_cs4231_ebus_create(snd_card_t *card, chip->dev_u.pdev = edev->bus->self; memcpy(&chip->image, &snd_cs4231_original_image, sizeof(snd_cs4231_original_image)); - strcpy(chip->eb2c.name, "cs4231(capture)"); - chip->eb2c.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; - chip->eb2c.callback = snd_cs4231_ebus_capture_callback; - chip->eb2c.client_cookie = chip; - chip->eb2c.irq = edev->irqs[0]; - strcpy(chip->eb2p.name, "cs4231(play)"); - chip->eb2p.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; - chip->eb2p.callback = snd_cs4231_ebus_play_callback; - chip->eb2p.client_cookie = chip; - chip->eb2p.irq = edev->irqs[1]; + strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)"); + chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; + chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback; + chip->c_dma.ebus_info.client_cookie = chip; + chip->c_dma.ebus_info.irq = edev->irqs[0]; + strcpy(chip->p_dma.ebus_info.name, "cs4231(play)"); + chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER; + chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback; + chip->p_dma.ebus_info.client_cookie = chip; + chip->p_dma.ebus_info.irq = edev->irqs[1]; + + chip->p_dma.prepare = _ebus_dma_prepare; + chip->p_dma.enable = _ebus_dma_enable; + chip->p_dma.request = _ebus_dma_request; + chip->p_dma.address = _ebus_dma_addr; + chip->p_dma.reset = _ebus_dma_reset; + chip->p_dma.preallocate = _ebus_dma_preallocate; + + chip->c_dma.prepare = _ebus_dma_prepare; + chip->c_dma.enable = _ebus_dma_enable; + chip->c_dma.request = _ebus_dma_request; + chip->c_dma.address = _ebus_dma_addr; + chip->c_dma.reset = _ebus_dma_reset; + chip->c_dma.preallocate = _ebus_dma_preallocate; chip->port = ioremap(edev->resource[0].start, 0x10); - chip->eb2p.regs = ioremap(edev->resource[1].start, 0x10); - chip->eb2c.regs = ioremap(edev->resource[2].start, 0x10); - if (!chip->port || !chip->eb2p.regs || !chip->eb2c.regs) { + chip->p_dma.ebus_info.regs = ioremap(edev->resource[1].start, 0x10); + chip->c_dma.ebus_info.regs = ioremap(edev->resource[2].start, 0x10); + if (!chip->port || !chip->p_dma.ebus_info.regs || !chip->c_dma.ebus_info.regs) { snd_cs4231_ebus_free(chip); snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev); return -EIO; } - if (ebus_dma_register(&chip->eb2c)) { + if (ebus_dma_register(&chip->c_dma.ebus_info)) { snd_cs4231_ebus_free(chip); snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n", dev); return -EBUSY; } - if (ebus_dma_irq_enable(&chip->eb2c, 1)) { + if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) { snd_cs4231_ebus_free(chip); snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n", dev); return -EBUSY; } - if (ebus_dma_register(&chip->eb2p)) { + if (ebus_dma_register(&chip->p_dma.ebus_info)) { snd_cs4231_ebus_free(chip); snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n", dev); return -EBUSY; } - if (ebus_dma_irq_enable(&chip->eb2p, 1)) { + if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) { snd_cs4231_ebus_free(chip); snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev); return -EBUSY; |