diff options
Diffstat (limited to 'sound/sparc/cs4231.c')
| -rw-r--r-- | sound/sparc/cs4231.c | 654 |
1 files changed, 371 insertions, 283 deletions
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c index f4361c518e4..1f8d27a6152 100644 --- a/sound/sparc/cs4231.c +++ b/sound/sparc/cs4231.c @@ -61,13 +61,37 @@ MODULE_DESCRIPTION("Sun CS4231"); MODULE_LICENSE("GPL"); MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}"); -typedef struct snd_cs4231 { - spinlock_t lock; - void __iomem *port; +#ifdef SBUS_SUPPORT +typedef struct sbus_dma_info { + spinlock_t lock; + int dir; + void __iomem *regs; +} sbus_dma_info_t; +#endif + +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 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 @@ -106,7 +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; @@ -251,6 +275,15 @@ static cs4231_t *cs4231_list; #define APCPNVA 0x38UL /* APC Play DMA Next Address */ #define APCPNC 0x3cUL /* APC Play Next Count */ +/* Defines for SBUS DMA-routines */ + +#define APCVA 0x0UL /* APC DMA Address */ +#define APCC 0x4UL /* APC Count */ +#define APCNVA 0x8UL /* APC DMA Next Address */ +#define APCNC 0xcUL /* APC Next Count */ +#define APC_PLAY 0x30UL /* Play registers start at 0x30 */ +#define APC_RECORD 0x20UL /* Record registers start at 0x20 */ + /* APCCSR bits */ #define APC_INT_PENDING 0x800000 /* Interrupt Pending */ @@ -569,8 +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; @@ -581,129 +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(snd_pcm_substream_t *substream, unsigned int *periods_sent) -{ - cs4231_t *chip = snd_pcm_substream_chip(substream); - snd_pcm_runtime_t *runtime = substream->runtime; - - unsigned int period_size = snd_pcm_lib_period_bytes(substream); - unsigned int offset = period_size * (*periods_sent % runtime->periods); - - if (runtime->period_size > 0xffff + 1) - BUG(); - - switch (substream->stream) { - case SNDRV_PCM_STREAM_PLAYBACK: - sbus_writel(runtime->dma_addr + offset, chip->port + APCPNVA); - sbus_writel(period_size, chip->port + APCPNC); - break; - case SNDRV_PCM_STREAM_CAPTURE: - sbus_writel(runtime->dma_addr + offset, chip->port + APCCNVA); - sbus_writel(period_size, chip->port + APCCNC); - break; - } - - (*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 - u32 csr = sbus_readl(chip->port + APCCSR); - /* I don't know why, but on sbus the period counter must - * only start counting after the first period is sent. - * Therefore this dummy thing. - */ - unsigned int dummy = 0; - - switch (what) { - case CS4231_PLAYBACK_ENABLE: + if (what & CS4231_PLAYBACK_ENABLE) { + dma_cont = &chip->p_dma; if (on) { - csr &= ~APC_XINT_PLAY; - sbus_writel(csr, chip->port + APCCSR); - - csr &= ~APC_PPAUSE; - sbus_writel(csr, chip->port + APCCSR); - - snd_cs4231_sbus_advance_dma(substream, &dummy); - - csr |= APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA | - APC_XINT_PLAY | APC_XINT_EMPT | APC_XINT_GENL | - APC_XINT_PENA | APC_PDMA_READY; - sbus_writel(csr, chip->port + APCCSR); + 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 { - csr |= APC_PPAUSE; - sbus_writel(csr, chip->port + APCCSR); - - csr &= ~APC_PDMA_READY; - sbus_writel(csr, chip->port + APCCSR); + dma_cont->enable(dma_cont, 0); } - break; - case CS4231_RECORD_ENABLE: + } + if (what & CS4231_RECORD_ENABLE) { + dma_cont = &chip->c_dma; if (on) { - csr &= ~APC_XINT_CAPT; - sbus_writel(csr, chip->port + APCCSR); - - csr &= ~APC_CPAUSE; - sbus_writel(csr, chip->port + APCCSR); - - snd_cs4231_sbus_advance_dma(substream, &dummy); - - csr |= APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA | - APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL | - APC_CDMA_READY; - - sbus_writel(csr, chip->port + APCCSR); + 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 { - csr |= APC_CPAUSE; - sbus_writel(csr, chip->port + APCCSR); - - csr &= ~APC_CDMA_READY; - sbus_writel(csr, chip->port + APCCSR); + dma_cont->enable(dma_cont, 0); } - break; - } -#endif -#ifdef EBUS_SUPPORT } -#endif } static int snd_cs4231_trigger(snd_pcm_substream_t *substream, int cmd) @@ -1136,10 +1080,7 @@ static int snd_cs4231_playback_prepare(snd_pcm_substream_t *substream) if (runtime->period_size > 0xffff + 1) BUG(); - snd_cs4231_out(chip, CS4231_PLY_LWR_CNT, (runtime->period_size - 1) & 0x00ff); - snd_cs4231_out(chip, CS4231_PLY_UPR_CNT, (runtime->period_size - 1) >> 8 & 0x00ff); chip->p_periods_sent = 0; - spin_unlock_irqrestore(&chip->lock, flags); return 0; @@ -1171,16 +1112,14 @@ static int snd_cs4231_capture_hw_free(snd_pcm_substream_t *substream) static int snd_cs4231_capture_prepare(snd_pcm_substream_t *substream) { cs4231_t *chip = snd_pcm_substream_chip(substream); - snd_pcm_runtime_t *runtime = substream->runtime; unsigned long flags; spin_lock_irqsave(&chip->lock, flags); chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO); - snd_cs4231_out(chip, CS4231_REC_LWR_CNT, (runtime->period_size - 1) & 0x00ff); - snd_cs4231_out(chip, CS4231_REC_LWR_CNT, (runtime->period_size - 1) >> 8 & 0x00ff); + chip->c_periods_sent = 0; spin_unlock_irqrestore(&chip->lock, flags); return 0; @@ -1199,134 +1138,55 @@ static void snd_cs4231_overrange(cs4231_t *chip) chip->capture_substream->runtime->overrange++; } -static irqreturn_t snd_cs4231_generic_interrupt(cs4231_t *chip) -{ - unsigned long flags; - unsigned char status; - - /*This is IRQ is not raised by the cs4231*/ - if (!(__cs4231_readb(chip, CS4231P(chip, STATUS)) & CS4231_GLOBALIRQ)) - return IRQ_NONE; - - 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; -} - -#ifdef SBUS_SUPPORT -static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - cs4231_t *chip = dev_id; - - /* ACK the APC interrupt. */ - u32 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_cs4231_sbus_advance_dma(chip->playback_substream, - &chip->p_periods_sent); - snd_pcm_period_elapsed(chip->playback_substream); - } - - if ((chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) && - (csr & APC_CAPT_INT) && - (csr & APC_XINT_CNVA)) { - snd_cs4231_sbus_advance_dma(chip->capture_substream, - &chip->c_periods_sent); - snd_pcm_period_elapsed(chip->capture_substream); - } - - return snd_cs4231_generic_interrupt(chip); -} -#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); - size_t ptr, residue, period_bytes; - + cs4231_dma_control_t *dma_cont = &chip->p_dma; + size_t ptr; + if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) return 0; - period_bytes = snd_pcm_lib_period_bytes(substream); - ptr = period_bytes * chip->p_periods_sent; -#ifdef EBUS_SUPPORT - if (chip->flags & CS4231_FLAG_EBUS) { - residue = ebus_dma_residue(&chip->eb2p); - } else { -#endif -#ifdef SBUS_SUPPORT - residue = sbus_readl(chip->port + APCPC); -#endif -#ifdef EBUS_SUPPORT - } -#endif - ptr += period_bytes - residue; - + 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); - size_t ptr, residue, period_bytes; + cs4231_dma_control_t *dma_cont = &chip->c_dma; + size_t ptr; if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)) return 0; - period_bytes = snd_pcm_lib_period_bytes(substream); - ptr = period_bytes * chip->c_periods_sent; -#ifdef EBUS_SUPPORT - if (chip->flags & CS4231_FLAG_EBUS) { - residue = ebus_dma_residue(&chip->eb2c); - } else { -#endif -#ifdef SBUS_SUPPORT - residue = sbus_readl(chip->port + APCCC); -#endif -#ifdef EBUS_SUPPORT - } -#endif - ptr += period_bytes - residue; + ptr = dma_cont->address(dma_cont); + if (ptr != 0) + ptr -= substream->runtime->dma_addr; + return bytes_to_frames(substream->runtime, ptr); } @@ -1362,30 +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)); @@ -1505,8 +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; } @@ -1515,8 +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; } @@ -1571,21 +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; @@ -1942,6 +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]) @@ -1983,6 +1981,8 @@ static int __init snd_cs4231_sbus_create(snd_card_t *card, return -ENOMEM; spin_lock_init(&chip->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; @@ -1998,6 +1998,25 @@ static int __init snd_cs4231_sbus_create(snd_card_t *card, return -EIO; } + 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)) { snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %s\n", @@ -2051,15 +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) @@ -2097,8 +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; @@ -2106,43 +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; |