| /* Analog Devices 1889 audio driver |
| * |
| * This is a driver for the AD1889 PCI audio chipset found |
| * on the HP PA-RISC [BCJ]-xxx0 workstations. |
| * |
| * Copyright (C) 2004-2005, Kyle McMartin <kyle@parisc-linux.org> |
| * Copyright (C) 2005, Thibaut Varene <varenet@parisc-linux.org> |
| * Based on the OSS AD1889 driver by Randolph Chung <tausq@debian.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, version 2, as |
| * published by the Free Software Foundation. |
| * |
| * 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * TODO: |
| * Do we need to take care of CCS register? |
| * Maybe we could use finer grained locking (separate locks for pb/cap)? |
| * Wishlist: |
| * Control Interface (mixer) support |
| * Better AC97 support (VSR...)? |
| * PM support |
| * MIDI support |
| * Game Port support |
| * SG DMA support (this will need *alot* of work) |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/slab.h> |
| #include <linux/interrupt.h> |
| #include <linux/compiler.h> |
| #include <linux/delay.h> |
| |
| #include <sound/driver.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/initval.h> |
| #include <sound/ac97_codec.h> |
| |
| #include <asm/io.h> |
| |
| #include "ad1889.h" |
| #include "ac97/ac97_id.h" |
| |
| #define AD1889_DRVVER "$Revision: 1.1 $" |
| |
| MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>, Thibaut Varene <t-bone@parisc-linux.org>"); |
| MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver"); |
| MODULE_LICENSE("GPL"); |
| MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1889}}"); |
| |
| static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
| module_param_array(index, int, NULL, 0444); |
| MODULE_PARM_DESC(index, "Index value for the AD1889 soundcard."); |
| |
| static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
| module_param_array(id, charp, NULL, 0444); |
| MODULE_PARM_DESC(id, "ID string for the AD1889 soundcard."); |
| |
| static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
| module_param_array(enable, bool, NULL, 0444); |
| MODULE_PARM_DESC(enable, "Enable AD1889 soundcard."); |
| |
| static char *ac97_quirk[SNDRV_CARDS]; |
| module_param_array(ac97_quirk, charp, NULL, 0444); |
| MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware."); |
| |
| #define DEVNAME "ad1889" |
| #define PFX DEVNAME ": " |
| |
| /* let's use the global sound debug interfaces */ |
| #define ad1889_debug(fmt, arg...) snd_printd(KERN_DEBUG fmt, ## arg) |
| |
| /* keep track of some hw registers */ |
| struct ad1889_register_state { |
| u16 reg; /* reg setup */ |
| u32 addr; /* dma base address */ |
| unsigned long size; /* DMA buffer size */ |
| }; |
| |
| struct snd_ad1889 { |
| snd_card_t *card; |
| struct pci_dev *pci; |
| |
| int irq; |
| unsigned long bar; |
| void __iomem *iobase; |
| |
| ac97_t *ac97; |
| ac97_bus_t *ac97_bus; |
| snd_pcm_t *pcm; |
| snd_info_entry_t *proc; |
| |
| snd_pcm_substream_t *psubs; |
| snd_pcm_substream_t *csubs; |
| |
| /* playback register state */ |
| struct ad1889_register_state wave; |
| struct ad1889_register_state ramc; |
| |
| spinlock_t lock; |
| }; |
| |
| static inline u16 |
| ad1889_readw(struct snd_ad1889 *chip, unsigned reg) |
| { |
| return readw(chip->iobase + reg); |
| } |
| |
| static inline void |
| ad1889_writew(struct snd_ad1889 *chip, unsigned reg, u16 val) |
| { |
| writew(val, chip->iobase + reg); |
| } |
| |
| static inline u32 |
| ad1889_readl(struct snd_ad1889 *chip, unsigned reg) |
| { |
| return readl(chip->iobase + reg); |
| } |
| |
| static inline void |
| ad1889_writel(struct snd_ad1889 *chip, unsigned reg, u32 val) |
| { |
| writel(val, chip->iobase + reg); |
| } |
| |
| static inline void |
| ad1889_unmute(struct snd_ad1889 *chip) |
| { |
| u16 st; |
| st = ad1889_readw(chip, AD_DS_WADA) & |
| ~(AD_DS_WADA_RWAM | AD_DS_WADA_LWAM); |
| ad1889_writew(chip, AD_DS_WADA, st); |
| ad1889_readw(chip, AD_DS_WADA); |
| } |
| |
| static inline void |
| ad1889_mute(struct snd_ad1889 *chip) |
| { |
| u16 st; |
| st = ad1889_readw(chip, AD_DS_WADA) | AD_DS_WADA_RWAM | AD_DS_WADA_LWAM; |
| ad1889_writew(chip, AD_DS_WADA, st); |
| ad1889_readw(chip, AD_DS_WADA); |
| } |
| |
| static inline void |
| ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address) |
| { |
| ad1889_writel(chip, AD_DMA_ADCBA, address); |
| ad1889_writel(chip, AD_DMA_ADCCA, address); |
| } |
| |
| static inline void |
| ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count) |
| { |
| ad1889_writel(chip, AD_DMA_ADCBC, count); |
| ad1889_writel(chip, AD_DMA_ADCCC, count); |
| } |
| |
| static inline void |
| ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count) |
| { |
| ad1889_writel(chip, AD_DMA_ADCIB, count); |
| ad1889_writel(chip, AD_DMA_ADCIC, count); |
| } |
| |
| static inline void |
| ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32 address) |
| { |
| ad1889_writel(chip, AD_DMA_WAVBA, address); |
| ad1889_writel(chip, AD_DMA_WAVCA, address); |
| } |
| |
| static inline void |
| ad1889_load_wave_buffer_count(struct snd_ad1889 *chip, u32 count) |
| { |
| ad1889_writel(chip, AD_DMA_WAVBC, count); |
| ad1889_writel(chip, AD_DMA_WAVCC, count); |
| } |
| |
| static inline void |
| ad1889_load_wave_interrupt_count(struct snd_ad1889 *chip, u32 count) |
| { |
| ad1889_writel(chip, AD_DMA_WAVIB, count); |
| ad1889_writel(chip, AD_DMA_WAVIC, count); |
| } |
| |
| static void |
| ad1889_channel_reset(struct snd_ad1889 *chip, unsigned int channel) |
| { |
| u16 reg; |
| |
| if (channel & AD_CHAN_WAV) { |
| /* Disable wave channel */ |
| reg = ad1889_readw(chip, AD_DS_WSMC) & ~AD_DS_WSMC_WAEN; |
| ad1889_writew(chip, AD_DS_WSMC, reg); |
| chip->wave.reg = reg; |
| |
| /* disable IRQs */ |
| reg = ad1889_readw(chip, AD_DMA_WAV); |
| reg &= AD_DMA_IM_DIS; |
| reg &= ~AD_DMA_LOOP; |
| ad1889_writew(chip, AD_DMA_WAV, reg); |
| |
| /* clear IRQ and address counters and pointers */ |
| ad1889_load_wave_buffer_address(chip, 0x0); |
| ad1889_load_wave_buffer_count(chip, 0x0); |
| ad1889_load_wave_interrupt_count(chip, 0x0); |
| |
| /* flush */ |
| ad1889_readw(chip, AD_DMA_WAV); |
| } |
| |
| if (channel & AD_CHAN_ADC) { |
| /* Disable ADC channel */ |
| reg = ad1889_readw(chip, AD_DS_RAMC) & ~AD_DS_RAMC_ADEN; |
| ad1889_writew(chip, AD_DS_RAMC, reg); |
| chip->ramc.reg = reg; |
| |
| reg = ad1889_readw(chip, AD_DMA_ADC); |
| reg &= AD_DMA_IM_DIS; |
| reg &= ~AD_DMA_LOOP; |
| ad1889_writew(chip, AD_DMA_ADC, reg); |
| |
| ad1889_load_adc_buffer_address(chip, 0x0); |
| ad1889_load_adc_buffer_count(chip, 0x0); |
| ad1889_load_adc_interrupt_count(chip, 0x0); |
| |
| /* flush */ |
| ad1889_readw(chip, AD_DMA_ADC); |
| } |
| } |
| |
| static inline u16 |
| snd_ad1889_ac97_read(ac97_t *ac97, unsigned short reg) |
| { |
| struct snd_ad1889 *chip = ac97->private_data; |
| return ad1889_readw(chip, AD_AC97_BASE + reg); |
| } |
| |
| static inline void |
| snd_ad1889_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short val) |
| { |
| struct snd_ad1889 *chip = ac97->private_data; |
| ad1889_writew(chip, AD_AC97_BASE + reg, val); |
| } |
| |
| static int |
| snd_ad1889_ac97_ready(struct snd_ad1889 *chip) |
| { |
| int retry = 400; /* average needs 352 msec */ |
| |
| while (!(ad1889_readw(chip, AD_AC97_ACIC) & AD_AC97_ACIC_ACRDY) |
| && --retry) |
| mdelay(1); |
| if (!retry) { |
| snd_printk(KERN_ERR PFX "[%s] Link is not ready.\n", |
| __FUNCTION__); |
| return -EIO; |
| } |
| ad1889_debug("[%s] ready after %d ms\n", __FUNCTION__, 400 - retry); |
| |
| return 0; |
| } |
| |
| static int |
| snd_ad1889_hw_params(snd_pcm_substream_t *substream, |
| snd_pcm_hw_params_t *hw_params) |
| { |
| return snd_pcm_lib_malloc_pages(substream, |
| params_buffer_bytes(hw_params)); |
| } |
| |
| static int |
| snd_ad1889_hw_free(snd_pcm_substream_t *substream) |
| { |
| return snd_pcm_lib_free_pages(substream); |
| } |
| |
| static snd_pcm_hardware_t snd_ad1889_playback_hw = { |
| .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, |
| .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
| .rate_min = 8000, /* docs say 7000, but we're lazy */ |
| .rate_max = 48000, |
| .channels_min = 1, |
| .channels_max = 2, |
| .buffer_bytes_max = BUFFER_BYTES_MAX, |
| .period_bytes_min = PERIOD_BYTES_MIN, |
| .period_bytes_max = PERIOD_BYTES_MAX, |
| .periods_min = PERIODS_MIN, |
| .periods_max = PERIODS_MAX, |
| /*.fifo_size = 0,*/ |
| }; |
| |
| static snd_pcm_hardware_t snd_ad1889_capture_hw = { |
| .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, |
| .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| .rates = SNDRV_PCM_RATE_48000, |
| .rate_min = 48000, /* docs say we could to VSR, but we're lazy */ |
| .rate_max = 48000, |
| .channels_min = 1, |
| .channels_max = 2, |
| .buffer_bytes_max = BUFFER_BYTES_MAX, |
| .period_bytes_min = PERIOD_BYTES_MIN, |
| .period_bytes_max = PERIOD_BYTES_MAX, |
| .periods_min = PERIODS_MIN, |
| .periods_max = PERIODS_MAX, |
| /*.fifo_size = 0,*/ |
| }; |
| |
| static int |
| snd_ad1889_playback_open(snd_pcm_substream_t *ss) |
| { |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| snd_pcm_runtime_t *rt = ss->runtime; |
| |
| chip->psubs = ss; |
| rt->hw = snd_ad1889_playback_hw; |
| |
| return 0; |
| } |
| |
| static int |
| snd_ad1889_capture_open(snd_pcm_substream_t *ss) |
| { |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| snd_pcm_runtime_t *rt = ss->runtime; |
| |
| chip->csubs = ss; |
| rt->hw = snd_ad1889_capture_hw; |
| |
| return 0; |
| } |
| |
| static int |
| snd_ad1889_playback_close(snd_pcm_substream_t *ss) |
| { |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| chip->psubs = NULL; |
| return 0; |
| } |
| |
| static int |
| snd_ad1889_capture_close(snd_pcm_substream_t *ss) |
| { |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| chip->csubs = NULL; |
| return 0; |
| } |
| |
| static int |
| snd_ad1889_playback_prepare(snd_pcm_substream_t *ss) |
| { |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| snd_pcm_runtime_t *rt = ss->runtime; |
| unsigned int size = snd_pcm_lib_buffer_bytes(ss); |
| unsigned int count = snd_pcm_lib_period_bytes(ss); |
| u16 reg; |
| |
| ad1889_channel_reset(chip, AD_CHAN_WAV); |
| |
| reg = ad1889_readw(chip, AD_DS_WSMC); |
| |
| /* Mask out 16-bit / Stereo */ |
| reg &= ~(AD_DS_WSMC_WA16 | AD_DS_WSMC_WAST); |
| |
| if (snd_pcm_format_width(rt->format) == 16) |
| reg |= AD_DS_WSMC_WA16; |
| |
| if (rt->channels > 1) |
| reg |= AD_DS_WSMC_WAST; |
| |
| /* let's make sure we don't clobber ourselves */ |
| spin_lock_irq(&chip->lock); |
| |
| chip->wave.size = size; |
| chip->wave.reg = reg; |
| chip->wave.addr = rt->dma_addr; |
| |
| ad1889_writew(chip, AD_DS_WSMC, chip->wave.reg); |
| |
| /* Set sample rates on the codec */ |
| ad1889_writew(chip, AD_DS_WAS, rt->rate); |
| |
| /* Set up DMA */ |
| ad1889_load_wave_buffer_address(chip, chip->wave.addr); |
| ad1889_load_wave_buffer_count(chip, size); |
| ad1889_load_wave_interrupt_count(chip, count); |
| |
| /* writes flush */ |
| ad1889_readw(chip, AD_DS_WSMC); |
| |
| spin_unlock_irq(&chip->lock); |
| |
| ad1889_debug("prepare playback: addr = 0x%x, count = %u, " |
| "size = %u, reg = 0x%x, rate = %u\n", chip->wave.addr, |
| count, size, reg, rt->rate); |
| return 0; |
| } |
| |
| static int |
| snd_ad1889_capture_prepare(snd_pcm_substream_t *ss) |
| { |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| snd_pcm_runtime_t *rt = ss->runtime; |
| unsigned int size = snd_pcm_lib_buffer_bytes(ss); |
| unsigned int count = snd_pcm_lib_period_bytes(ss); |
| u16 reg; |
| |
| ad1889_channel_reset(chip, AD_CHAN_ADC); |
| |
| reg = ad1889_readw(chip, AD_DS_RAMC); |
| |
| /* Mask out 16-bit / Stereo */ |
| reg &= ~(AD_DS_RAMC_AD16 | AD_DS_RAMC_ADST); |
| |
| if (snd_pcm_format_width(rt->format) == 16) |
| reg |= AD_DS_RAMC_AD16; |
| |
| if (rt->channels > 1) |
| reg |= AD_DS_RAMC_ADST; |
| |
| /* let's make sure we don't clobber ourselves */ |
| spin_lock_irq(&chip->lock); |
| |
| chip->ramc.size = size; |
| chip->ramc.reg = reg; |
| chip->ramc.addr = rt->dma_addr; |
| |
| ad1889_writew(chip, AD_DS_RAMC, chip->ramc.reg); |
| |
| /* Set up DMA */ |
| ad1889_load_adc_buffer_address(chip, chip->ramc.addr); |
| ad1889_load_adc_buffer_count(chip, size); |
| ad1889_load_adc_interrupt_count(chip, count); |
| |
| /* writes flush */ |
| ad1889_readw(chip, AD_DS_RAMC); |
| |
| spin_unlock_irq(&chip->lock); |
| |
| ad1889_debug("prepare capture: addr = 0x%x, count = %u, " |
| "size = %u, reg = 0x%x, rate = %u\n", chip->ramc.addr, |
| count, size, reg, rt->rate); |
| return 0; |
| } |
| |
| /* this is called in atomic context with IRQ disabled. |
| Must be as fast as possible and not sleep. |
| DMA should be *triggered* by this call. |
| The WSMC "WAEN" bit triggers DMA Wave On/Off */ |
| static int |
| snd_ad1889_playback_trigger(snd_pcm_substream_t *ss, int cmd) |
| { |
| u16 wsmc; |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| |
| wsmc = ad1889_readw(chip, AD_DS_WSMC); |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_START: |
| /* enable DMA loop & interrupts */ |
| ad1889_writew(chip, AD_DMA_WAV, AD_DMA_LOOP | AD_DMA_IM_CNT); |
| wsmc |= AD_DS_WSMC_WAEN; |
| /* 1 to clear CHSS bit */ |
| ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_WAVS); |
| ad1889_unmute(chip); |
| break; |
| case SNDRV_PCM_TRIGGER_STOP: |
| ad1889_mute(chip); |
| wsmc &= ~AD_DS_WSMC_WAEN; |
| break; |
| default: |
| snd_BUG(); |
| return -EINVAL; |
| } |
| |
| chip->wave.reg = wsmc; |
| ad1889_writew(chip, AD_DS_WSMC, wsmc); |
| ad1889_readw(chip, AD_DS_WSMC); /* flush */ |
| |
| /* reset the chip when STOP - will disable IRQs */ |
| if (cmd == SNDRV_PCM_TRIGGER_STOP) |
| ad1889_channel_reset(chip, AD_CHAN_WAV); |
| |
| return 0; |
| } |
| |
| /* this is called in atomic context with IRQ disabled. |
| Must be as fast as possible and not sleep. |
| DMA should be *triggered* by this call. |
| The RAMC "ADEN" bit triggers DMA ADC On/Off */ |
| static int |
| snd_ad1889_capture_trigger(snd_pcm_substream_t *ss, int cmd) |
| { |
| u16 ramc; |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| |
| ramc = ad1889_readw(chip, AD_DS_RAMC); |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_START: |
| /* enable DMA loop & interrupts */ |
| ad1889_writew(chip, AD_DMA_ADC, AD_DMA_LOOP | AD_DMA_IM_CNT); |
| ramc |= AD_DS_RAMC_ADEN; |
| /* 1 to clear CHSS bit */ |
| ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_ADCS); |
| break; |
| case SNDRV_PCM_TRIGGER_STOP: |
| ramc &= ~AD_DS_RAMC_ADEN; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| chip->ramc.reg = ramc; |
| ad1889_writew(chip, AD_DS_RAMC, ramc); |
| ad1889_readw(chip, AD_DS_RAMC); /* flush */ |
| |
| /* reset the chip when STOP - will disable IRQs */ |
| if (cmd == SNDRV_PCM_TRIGGER_STOP) |
| ad1889_channel_reset(chip, AD_CHAN_ADC); |
| |
| return 0; |
| } |
| |
| /* Called in atomic context with IRQ disabled */ |
| static snd_pcm_uframes_t |
| snd_ad1889_playback_pointer(snd_pcm_substream_t *ss) |
| { |
| size_t ptr = 0; |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| |
| if (unlikely(!(chip->wave.reg & AD_DS_WSMC_WAEN))) |
| return 0; |
| |
| ptr = ad1889_readl(chip, AD_DMA_WAVCA); |
| ptr -= chip->wave.addr; |
| |
| snd_assert((ptr >= 0) && (ptr < chip->wave.size), return 0); |
| |
| return bytes_to_frames(ss->runtime, ptr); |
| } |
| |
| /* Called in atomic context with IRQ disabled */ |
| static snd_pcm_uframes_t |
| snd_ad1889_capture_pointer(snd_pcm_substream_t *ss) |
| { |
| size_t ptr = 0; |
| struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
| |
| if (unlikely(!(chip->ramc.reg & AD_DS_RAMC_ADEN))) |
| return 0; |
| |
| ptr = ad1889_readl(chip, AD_DMA_ADCCA); |
| ptr -= chip->ramc.addr; |
| |
| snd_assert((ptr >= 0) && (ptr < chip->ramc.size), return 0); |
| |
| return bytes_to_frames(ss->runtime, ptr); |
| } |
| |
| static snd_pcm_ops_t snd_ad1889_playback_ops = { |
| .open = snd_ad1889_playback_open, |
| .close = snd_ad1889_playback_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .hw_params = snd_ad1889_hw_params, |
| .hw_free = snd_ad1889_hw_free, |
| .prepare = snd_ad1889_playback_prepare, |
| .trigger = snd_ad1889_playback_trigger, |
| .pointer = snd_ad1889_playback_pointer, |
| }; |
| |
| static snd_pcm_ops_t snd_ad1889_capture_ops = { |
| .open = snd_ad1889_capture_open, |
| .close = snd_ad1889_capture_close, |
| .ioctl = snd_pcm_lib_ioctl, |
| .hw_params = snd_ad1889_hw_params, |
| .hw_free = snd_ad1889_hw_free, |
| .prepare = snd_ad1889_capture_prepare, |
| .trigger = snd_ad1889_capture_trigger, |
| .pointer = snd_ad1889_capture_pointer, |
| }; |
| |
| static irqreturn_t |
| snd_ad1889_interrupt(int irq, |
| void *dev_id, |
| struct pt_regs *regs) |
| { |
| unsigned long st; |
| struct snd_ad1889 *chip = dev_id; |
| |
| st = ad1889_readl(chip, AD_DMA_DISR); |
| |
| /* clear ISR */ |
| ad1889_writel(chip, AD_DMA_DISR, st); |
| |
| st &= AD_INTR_MASK; |
| |
| if (unlikely(!st)) |
| return IRQ_NONE; |
| |
| if (st & (AD_DMA_DISR_PMAI|AD_DMA_DISR_PTAI)) |
| ad1889_debug("Unexpected master or target abort interrupt!\n"); |
| |
| if ((st & AD_DMA_DISR_WAVI) && chip->psubs) |
| snd_pcm_period_elapsed(chip->psubs); |
| if ((st & AD_DMA_DISR_ADCI) && chip->csubs) |
| snd_pcm_period_elapsed(chip->csubs); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void |
| snd_ad1889_pcm_free(snd_pcm_t *pcm) |
| { |
| struct snd_ad1889 *chip = pcm->private_data; |
| chip->pcm = NULL; |
| snd_pcm_lib_preallocate_free_for_all(pcm); |
| } |
| |
| static int __devinit |
| snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device, snd_pcm_t **rpcm) |
| { |
| int err; |
| snd_pcm_t *pcm; |
| |
| if (rpcm) |
| *rpcm = NULL; |
| |
| err = snd_pcm_new(chip->card, chip->card->driver, device, 1, 1, &pcm); |
| if (err < 0) |
| return err; |
| |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, |
| &snd_ad1889_playback_ops); |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, |
| &snd_ad1889_capture_ops); |
| |
| pcm->private_data = chip; |
| pcm->private_free = snd_ad1889_pcm_free; |
| pcm->info_flags = 0; |
| strcpy(pcm->name, chip->card->shortname); |
| |
| chip->pcm = pcm; |
| chip->psubs = NULL; |
| chip->csubs = NULL; |
| |
| err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
| snd_dma_pci_data(chip->pci), |
| BUFFER_BYTES_MAX / 2, |
| BUFFER_BYTES_MAX); |
| |
| if (err < 0) { |
| snd_printk(KERN_ERR PFX "buffer allocation error: %d\n", err); |
| return err; |
| } |
| |
| if (rpcm) |
| *rpcm = pcm; |
| |
| return 0; |
| } |
| |
| static void |
| snd_ad1889_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer) |
| { |
| struct snd_ad1889 *chip = entry->private_data; |
| u16 reg; |
| int tmp; |
| |
| reg = ad1889_readw(chip, AD_DS_WSMC); |
| snd_iprintf(buffer, "Wave output: %s\n", |
| (reg & AD_DS_WSMC_WAEN) ? "enabled" : "disabled"); |
| snd_iprintf(buffer, "Wave Channels: %s\n", |
| (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); |
| snd_iprintf(buffer, "Wave Quality: %d-bit linear\n", |
| (reg & AD_DS_WSMC_WA16) ? 16 : 8); |
| |
| /* WARQ is at offset 12 */ |
| tmp = (reg & AD_DS_WSMC_WARQ) ? |
| (((reg & AD_DS_WSMC_WARQ >> 12) & 0x01) ? 12 : 18) : 4; |
| tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1; |
| |
| snd_iprintf(buffer, "Wave FIFO: %d %s words\n\n", tmp, |
| (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); |
| |
| |
| snd_iprintf(buffer, "Synthesis output: %s\n", |
| reg & AD_DS_WSMC_SYEN ? "enabled" : "disabled"); |
| |
| /* SYRQ is at offset 4 */ |
| tmp = (reg & AD_DS_WSMC_SYRQ) ? |
| (((reg & AD_DS_WSMC_SYRQ >> 4) & 0x01) ? 12 : 18) : 4; |
| tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1; |
| |
| snd_iprintf(buffer, "Synthesis FIFO: %d %s words\n\n", tmp, |
| (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); |
| |
| reg = ad1889_readw(chip, AD_DS_RAMC); |
| snd_iprintf(buffer, "ADC input: %s\n", |
| (reg & AD_DS_RAMC_ADEN) ? "enabled" : "disabled"); |
| snd_iprintf(buffer, "ADC Channels: %s\n", |
| (reg & AD_DS_RAMC_ADST) ? "stereo" : "mono"); |
| snd_iprintf(buffer, "ADC Quality: %d-bit linear\n", |
| (reg & AD_DS_RAMC_AD16) ? 16 : 8); |
| |
| /* ACRQ is at offset 4 */ |
| tmp = (reg & AD_DS_RAMC_ACRQ) ? |
| (((reg & AD_DS_RAMC_ACRQ >> 4) & 0x01) ? 12 : 18) : 4; |
| tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1; |
| |
| snd_iprintf(buffer, "ADC FIFO: %d %s words\n\n", tmp, |
| (reg & AD_DS_RAMC_ADST) ? "stereo" : "mono"); |
| |
| snd_iprintf(buffer, "Resampler input: %s\n", |
| reg & AD_DS_RAMC_REEN ? "enabled" : "disabled"); |
| |
| /* RERQ is at offset 12 */ |
| tmp = (reg & AD_DS_RAMC_RERQ) ? |
| (((reg & AD_DS_RAMC_RERQ >> 12) & 0x01) ? 12 : 18) : 4; |
| tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1; |
| |
| snd_iprintf(buffer, "Resampler FIFO: %d %s words\n\n", tmp, |
| (reg & AD_DS_WSMC_WAST) ? "stereo" : "mono"); |
| |
| |
| /* doc says LSB represents -1.5dB, but the max value (-94.5dB) |
| suggests that LSB is -3dB, which is more coherent with the logarithmic |
| nature of the dB scale */ |
| reg = ad1889_readw(chip, AD_DS_WADA); |
| snd_iprintf(buffer, "Left: %s, -%d dB\n", |
| (reg & AD_DS_WADA_LWAM) ? "mute" : "unmute", |
| ((reg & AD_DS_WADA_LWAA) >> 8) * 3); |
| reg = ad1889_readw(chip, AD_DS_WADA); |
| snd_iprintf(buffer, "Right: %s, -%d dB\n", |
| (reg & AD_DS_WADA_RWAM) ? "mute" : "unmute", |
| ((reg & AD_DS_WADA_RWAA) >> 8) * 3); |
| |
| reg = ad1889_readw(chip, AD_DS_WAS); |
| snd_iprintf(buffer, "Wave samplerate: %u Hz\n", reg); |
| reg = ad1889_readw(chip, AD_DS_RES); |
| snd_iprintf(buffer, "Resampler samplerate: %u Hz\n", reg); |
| } |
| |
| static void __devinit |
| snd_ad1889_proc_init(struct snd_ad1889 *chip) |
| { |
| snd_info_entry_t *entry; |
| |
| if (!snd_card_proc_new(chip->card, chip->card->driver, &entry)) |
| snd_info_set_text_ops(entry, chip, 1024, snd_ad1889_proc_read); |
| } |
| |
| static struct ac97_quirk ac97_quirks[] = { |
| { |
| .subvendor = 0x11d4, /* AD */ |
| .subdevice = 0x1889, /* AD1889 */ |
| .codec_id = AC97_ID_AD1819, |
| .name = "AD1889", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { } /* terminator */ |
| }; |
| |
| static void __devinit |
| snd_ad1889_ac97_xinit(struct snd_ad1889 *chip) |
| { |
| u16 reg; |
| |
| reg = ad1889_readw(chip, AD_AC97_ACIC); |
| reg |= AD_AC97_ACIC_ACRD; /* Reset Disable */ |
| ad1889_writew(chip, AD_AC97_ACIC, reg); |
| ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */ |
| udelay(10); |
| /* Interface Enable */ |
| reg |= AD_AC97_ACIC_ACIE; |
| ad1889_writew(chip, AD_AC97_ACIC, reg); |
| |
| snd_ad1889_ac97_ready(chip); |
| |
| /* Audio Stream Output | Variable Sample Rate Mode */ |
| reg = ad1889_readw(chip, AD_AC97_ACIC); |
| reg |= AD_AC97_ACIC_ASOE | AD_AC97_ACIC_VSRM; |
| ad1889_writew(chip, AD_AC97_ACIC, reg); |
| ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */ |
| |
| } |
| |
| static void |
| snd_ad1889_ac97_bus_free(ac97_bus_t *bus) |
| { |
| struct snd_ad1889 *chip = bus->private_data; |
| chip->ac97_bus = NULL; |
| } |
| |
| static void |
| snd_ad1889_ac97_free(ac97_t *ac97) |
| { |
| struct snd_ad1889 *chip = ac97->private_data; |
| chip->ac97 = NULL; |
| } |
| |
| static int __devinit |
| snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) |
| { |
| int err; |
| ac97_template_t ac97; |
| static ac97_bus_ops_t ops = { |
| .write = snd_ad1889_ac97_write, |
| .read = snd_ad1889_ac97_read, |
| }; |
| |
| /* doing that here, it works. */ |
| snd_ad1889_ac97_xinit(chip); |
| |
| err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus); |
| if (err < 0) |
| return err; |
| |
| chip->ac97_bus->private_free = snd_ad1889_ac97_bus_free; |
| |
| memset(&ac97, 0, sizeof(ac97)); |
| ac97.private_data = chip; |
| ac97.private_free = snd_ad1889_ac97_free; |
| ac97.pci = chip->pci; |
| |
| err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97); |
| if (err < 0) |
| return err; |
| |
| snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override); |
| |
| return 0; |
| } |
| |
| static int |
| snd_ad1889_free(struct snd_ad1889 *chip) |
| { |
| if (chip->irq < 0) |
| goto skip_hw; |
| |
| spin_lock_irq(&chip->lock); |
| |
| ad1889_mute(chip); |
| |
| /* Turn off interrupt on count and zero DMA registers */ |
| ad1889_channel_reset(chip, AD_CHAN_WAV | AD_CHAN_ADC); |
| |
| /* clear DISR. If we don't, we'd better jump off the Eiffel Tower */ |
| ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PTAI | AD_DMA_DISR_PMAI); |
| ad1889_readl(chip, AD_DMA_DISR); /* flush, dammit! */ |
| |
| spin_unlock_irq(&chip->lock); |
| |
| synchronize_irq(chip->irq); |
| |
| if (chip->irq >= 0) |
| free_irq(chip->irq, (void*)chip); |
| |
| skip_hw: |
| if (chip->iobase) |
| iounmap(chip->iobase); |
| |
| pci_release_regions(chip->pci); |
| pci_disable_device(chip->pci); |
| |
| kfree(chip); |
| return 0; |
| } |
| |
| static inline int |
| snd_ad1889_dev_free(snd_device_t *device) |
| { |
| struct snd_ad1889 *chip = device->device_data; |
| return snd_ad1889_free(chip); |
| } |
| |
| static int __devinit |
| snd_ad1889_init(struct snd_ad1889 *chip) |
| { |
| ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */ |
| ad1889_readw(chip, AD_DS_CCS); /* flush posted write */ |
| |
| mdelay(10); |
| |
| /* enable Master and Target abort interrupts */ |
| ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE); |
| |
| return 0; |
| } |
| |
| static int __devinit |
| snd_ad1889_create(snd_card_t *card, |
| struct pci_dev *pci, |
| struct snd_ad1889 **rchip) |
| { |
| int err; |
| |
| struct snd_ad1889 *chip; |
| static snd_device_ops_t ops = { |
| .dev_free = snd_ad1889_dev_free, |
| }; |
| |
| *rchip = NULL; |
| |
| if ((err = pci_enable_device(pci)) < 0) |
| return err; |
| |
| /* check PCI availability (32bit DMA) */ |
| if (pci_set_dma_mask(pci, 0xffffffff) < 0 || |
| pci_set_consistent_dma_mask(pci, 0xffffffff) < 0) { |
| printk(KERN_ERR PFX "error setting 32-bit DMA mask.\n"); |
| pci_disable_device(pci); |
| return -ENXIO; |
| } |
| |
| /* allocate chip specific data with zero-filled memory */ |
| if ((chip = kcalloc(1, sizeof(*chip), GFP_KERNEL)) == NULL) { |
| pci_disable_device(pci); |
| return -ENOMEM; |
| } |
| |
| chip->card = card; |
| card->private_data = chip; |
| chip->pci = pci; |
| chip->irq = -1; |
| |
| /* (1) PCI resource allocation */ |
| if ((err = pci_request_regions(pci, card->driver)) < 0) |
| goto free_and_ret; |
| |
| chip->bar = pci_resource_start(pci, 0); |
| chip->iobase = ioremap_nocache(chip->bar, pci_resource_len(pci, 0)); |
| if (chip->iobase == NULL) { |
| printk(KERN_ERR PFX "unable to reserve region.\n"); |
| err = -EBUSY; |
| goto free_and_ret; |
| } |
| |
| pci_set_master(pci); |
| |
| spin_lock_init(&chip->lock); /* only now can we call ad1889_free */ |
| |
| if (request_irq(pci->irq, snd_ad1889_interrupt, |
| SA_INTERRUPT|SA_SHIRQ, card->driver, (void*)chip)) { |
| printk(KERN_ERR PFX "cannot obtain IRQ %d\n", pci->irq); |
| snd_ad1889_free(chip); |
| return -EBUSY; |
| } |
| |
| chip->irq = pci->irq; |
| synchronize_irq(chip->irq); |
| |
| /* (2) initialization of the chip hardware */ |
| if ((err = snd_ad1889_init(chip)) < 0) { |
| snd_ad1889_free(chip); |
| return err; |
| } |
| |
| if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
| snd_ad1889_free(chip); |
| return err; |
| } |
| |
| snd_card_set_dev(card, &pci->dev); |
| |
| *rchip = chip; |
| |
| return 0; |
| |
| free_and_ret: |
| if (chip) |
| kfree(chip); |
| pci_disable_device(pci); |
| |
| return err; |
| } |
| |
| static int __devinit |
| snd_ad1889_probe(struct pci_dev *pci, |
| const struct pci_device_id *pci_id) |
| { |
| int err; |
| static int devno; |
| snd_card_t *card; |
| struct snd_ad1889 *chip; |
| |
| /* (1) */ |
| if (devno >= SNDRV_CARDS) |
| return -ENODEV; |
| if (!enable[devno]) { |
| devno++; |
| return -ENOENT; |
| } |
| |
| /* (2) */ |
| card = snd_card_new(index[devno], id[devno], THIS_MODULE, 0); |
| /* XXX REVISIT: we can probably allocate chip in this call */ |
| if (card == NULL) |
| return -ENOMEM; |
| |
| strcpy(card->driver, "AD1889"); |
| strcpy(card->shortname, "Analog Devices AD1889"); |
| |
| /* (3) */ |
| err = snd_ad1889_create(card, pci, &chip); |
| if (err < 0) |
| goto free_and_ret; |
| |
| /* (4) */ |
| sprintf(card->longname, "%s at 0x%lx irq %i", |
| card->shortname, chip->bar, chip->irq); |
| |
| /* (5) */ |
| /* register AC97 mixer */ |
| err = snd_ad1889_ac97_init(chip, ac97_quirk[devno]); |
| if (err < 0) |
| goto free_and_ret; |
| |
| err = snd_ad1889_pcm_init(chip, 0, NULL); |
| if (err < 0) |
| goto free_and_ret; |
| |
| /* register proc interface */ |
| snd_ad1889_proc_init(chip); |
| |
| /* (6) */ |
| err = snd_card_register(card); |
| if (err < 0) |
| goto free_and_ret; |
| |
| /* (7) */ |
| pci_set_drvdata(pci, card); |
| |
| devno++; |
| return 0; |
| |
| free_and_ret: |
| snd_card_free(card); |
| return err; |
| } |
| |
| static void __devexit |
| snd_ad1889_remove(struct pci_dev *pci) |
| { |
| snd_card_free(pci_get_drvdata(pci)); |
| pci_set_drvdata(pci, NULL); |
| } |
| |
| static struct pci_device_id snd_ad1889_ids[] = { |
| { PCI_DEVICE(PCI_VENDOR_ID_ANALOG_DEVICES, PCI_DEVICE_ID_AD1889JS) }, |
| { 0, }, |
| }; |
| MODULE_DEVICE_TABLE(pci, snd_ad1889_ids); |
| |
| static struct pci_driver ad1889_pci = { |
| .name = "AD1889 Audio", |
| .id_table = snd_ad1889_ids, |
| .probe = snd_ad1889_probe, |
| .remove = __devexit_p(snd_ad1889_remove), |
| }; |
| |
| static int __init |
| alsa_ad1889_init(void) |
| { |
| return pci_register_driver(&ad1889_pci); |
| } |
| |
| static void __exit |
| alsa_ad1889_fini(void) |
| { |
| pci_unregister_driver(&ad1889_pci); |
| } |
| |
| module_init(alsa_ad1889_init); |
| module_exit(alsa_ad1889_fini); |