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1008 lines
25 KiB
1008 lines
25 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* Analog Devices 1889 audio driver |
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* |
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* This is a driver for the AD1889 PCI audio chipset found |
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* on the HP PA-RISC [BCJ]-xxx0 workstations. |
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* |
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* Copyright (C) 2004-2005, Kyle McMartin <[email protected]> |
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* Copyright (C) 2005, Thibaut Varene <[email protected]> |
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* Based on the OSS AD1889 driver by Randolph Chung <[email protected]> |
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* |
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* TODO: |
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* Do we need to take care of CCS register? |
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* Maybe we could use finer grained locking (separate locks for pb/cap)? |
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* Wishlist: |
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* Control Interface (mixer) support |
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* Better AC97 support (VSR...)? |
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* PM support |
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* MIDI support |
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* Game Port support |
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* SG DMA support (this will need *a lot* of work) |
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*/ |
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#include <linux/init.h> |
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#include <linux/pci.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/slab.h> |
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#include <linux/interrupt.h> |
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#include <linux/compiler.h> |
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#include <linux/delay.h> |
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#include <linux/module.h> |
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#include <linux/io.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/initval.h> |
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#include <sound/ac97_codec.h> |
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#include "ad1889.h" |
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#include "ac97/ac97_id.h" |
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#define AD1889_DRVVER "Version: 1.7" |
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MODULE_AUTHOR("Kyle McMartin <[email protected]>, Thibaut Varene <[email protected]>"); |
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MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver"); |
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MODULE_LICENSE("GPL"); |
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
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module_param_array(index, int, NULL, 0444); |
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MODULE_PARM_DESC(index, "Index value for the AD1889 soundcard."); |
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
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module_param_array(id, charp, NULL, 0444); |
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MODULE_PARM_DESC(id, "ID string for the AD1889 soundcard."); |
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
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module_param_array(enable, bool, NULL, 0444); |
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MODULE_PARM_DESC(enable, "Enable AD1889 soundcard."); |
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static char *ac97_quirk[SNDRV_CARDS]; |
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module_param_array(ac97_quirk, charp, NULL, 0444); |
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MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware."); |
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#define DEVNAME "ad1889" |
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#define PFX DEVNAME ": " |
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/* keep track of some hw registers */ |
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struct ad1889_register_state { |
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u16 reg; /* reg setup */ |
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u32 addr; /* dma base address */ |
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unsigned long size; /* DMA buffer size */ |
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}; |
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struct snd_ad1889 { |
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struct snd_card *card; |
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struct pci_dev *pci; |
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int irq; |
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unsigned long bar; |
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void __iomem *iobase; |
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struct snd_ac97 *ac97; |
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struct snd_ac97_bus *ac97_bus; |
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struct snd_pcm *pcm; |
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struct snd_info_entry *proc; |
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struct snd_pcm_substream *psubs; |
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struct snd_pcm_substream *csubs; |
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/* playback register state */ |
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struct ad1889_register_state wave; |
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struct ad1889_register_state ramc; |
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spinlock_t lock; |
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}; |
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static inline u16 |
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ad1889_readw(struct snd_ad1889 *chip, unsigned reg) |
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{ |
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return readw(chip->iobase + reg); |
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} |
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static inline void |
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ad1889_writew(struct snd_ad1889 *chip, unsigned reg, u16 val) |
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{ |
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writew(val, chip->iobase + reg); |
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} |
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static inline u32 |
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ad1889_readl(struct snd_ad1889 *chip, unsigned reg) |
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{ |
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return readl(chip->iobase + reg); |
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} |
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static inline void |
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ad1889_writel(struct snd_ad1889 *chip, unsigned reg, u32 val) |
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{ |
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writel(val, chip->iobase + reg); |
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} |
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static inline void |
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ad1889_unmute(struct snd_ad1889 *chip) |
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{ |
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u16 st; |
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st = ad1889_readw(chip, AD_DS_WADA) & |
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~(AD_DS_WADA_RWAM | AD_DS_WADA_LWAM); |
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ad1889_writew(chip, AD_DS_WADA, st); |
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ad1889_readw(chip, AD_DS_WADA); |
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} |
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static inline void |
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ad1889_mute(struct snd_ad1889 *chip) |
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{ |
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u16 st; |
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st = ad1889_readw(chip, AD_DS_WADA) | AD_DS_WADA_RWAM | AD_DS_WADA_LWAM; |
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ad1889_writew(chip, AD_DS_WADA, st); |
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ad1889_readw(chip, AD_DS_WADA); |
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} |
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static inline void |
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ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address) |
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{ |
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ad1889_writel(chip, AD_DMA_ADCBA, address); |
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ad1889_writel(chip, AD_DMA_ADCCA, address); |
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} |
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static inline void |
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ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count) |
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{ |
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ad1889_writel(chip, AD_DMA_ADCBC, count); |
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ad1889_writel(chip, AD_DMA_ADCCC, count); |
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} |
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static inline void |
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ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count) |
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{ |
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ad1889_writel(chip, AD_DMA_ADCIB, count); |
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ad1889_writel(chip, AD_DMA_ADCIC, count); |
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} |
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static inline void |
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ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32 address) |
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{ |
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ad1889_writel(chip, AD_DMA_WAVBA, address); |
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ad1889_writel(chip, AD_DMA_WAVCA, address); |
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} |
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static inline void |
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ad1889_load_wave_buffer_count(struct snd_ad1889 *chip, u32 count) |
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{ |
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ad1889_writel(chip, AD_DMA_WAVBC, count); |
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ad1889_writel(chip, AD_DMA_WAVCC, count); |
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} |
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static inline void |
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ad1889_load_wave_interrupt_count(struct snd_ad1889 *chip, u32 count) |
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{ |
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ad1889_writel(chip, AD_DMA_WAVIB, count); |
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ad1889_writel(chip, AD_DMA_WAVIC, count); |
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} |
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static void |
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ad1889_channel_reset(struct snd_ad1889 *chip, unsigned int channel) |
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{ |
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u16 reg; |
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if (channel & AD_CHAN_WAV) { |
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/* Disable wave channel */ |
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reg = ad1889_readw(chip, AD_DS_WSMC) & ~AD_DS_WSMC_WAEN; |
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ad1889_writew(chip, AD_DS_WSMC, reg); |
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chip->wave.reg = reg; |
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/* disable IRQs */ |
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reg = ad1889_readw(chip, AD_DMA_WAV); |
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reg &= AD_DMA_IM_DIS; |
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reg &= ~AD_DMA_LOOP; |
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ad1889_writew(chip, AD_DMA_WAV, reg); |
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/* clear IRQ and address counters and pointers */ |
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ad1889_load_wave_buffer_address(chip, 0x0); |
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ad1889_load_wave_buffer_count(chip, 0x0); |
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ad1889_load_wave_interrupt_count(chip, 0x0); |
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/* flush */ |
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ad1889_readw(chip, AD_DMA_WAV); |
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} |
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if (channel & AD_CHAN_ADC) { |
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/* Disable ADC channel */ |
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reg = ad1889_readw(chip, AD_DS_RAMC) & ~AD_DS_RAMC_ADEN; |
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ad1889_writew(chip, AD_DS_RAMC, reg); |
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chip->ramc.reg = reg; |
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reg = ad1889_readw(chip, AD_DMA_ADC); |
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reg &= AD_DMA_IM_DIS; |
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reg &= ~AD_DMA_LOOP; |
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ad1889_writew(chip, AD_DMA_ADC, reg); |
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ad1889_load_adc_buffer_address(chip, 0x0); |
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ad1889_load_adc_buffer_count(chip, 0x0); |
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ad1889_load_adc_interrupt_count(chip, 0x0); |
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/* flush */ |
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ad1889_readw(chip, AD_DMA_ADC); |
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} |
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} |
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static u16 |
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snd_ad1889_ac97_read(struct snd_ac97 *ac97, unsigned short reg) |
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{ |
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struct snd_ad1889 *chip = ac97->private_data; |
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return ad1889_readw(chip, AD_AC97_BASE + reg); |
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} |
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static void |
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snd_ad1889_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) |
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{ |
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struct snd_ad1889 *chip = ac97->private_data; |
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ad1889_writew(chip, AD_AC97_BASE + reg, val); |
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} |
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static int |
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snd_ad1889_ac97_ready(struct snd_ad1889 *chip) |
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{ |
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int retry = 400; /* average needs 352 msec */ |
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while (!(ad1889_readw(chip, AD_AC97_ACIC) & AD_AC97_ACIC_ACRDY) |
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&& --retry) |
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usleep_range(1000, 2000); |
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if (!retry) { |
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dev_err(chip->card->dev, "[%s] Link is not ready.\n", |
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__func__); |
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return -EIO; |
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} |
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dev_dbg(chip->card->dev, "[%s] ready after %d ms\n", __func__, 400 - retry); |
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return 0; |
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} |
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static const struct snd_pcm_hardware snd_ad1889_playback_hw = { |
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.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
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SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, |
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.rate_min = 8000, /* docs say 7000, but we're lazy */ |
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.rate_max = 48000, |
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.channels_min = 1, |
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.channels_max = 2, |
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.buffer_bytes_max = BUFFER_BYTES_MAX, |
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.period_bytes_min = PERIOD_BYTES_MIN, |
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.period_bytes_max = PERIOD_BYTES_MAX, |
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.periods_min = PERIODS_MIN, |
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.periods_max = PERIODS_MAX, |
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/*.fifo_size = 0,*/ |
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}; |
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static const struct snd_pcm_hardware snd_ad1889_capture_hw = { |
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.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
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SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER, |
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.formats = SNDRV_PCM_FMTBIT_S16_LE, |
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.rates = SNDRV_PCM_RATE_48000, |
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.rate_min = 48000, /* docs say we could to VSR, but we're lazy */ |
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.rate_max = 48000, |
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.channels_min = 1, |
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.channels_max = 2, |
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.buffer_bytes_max = BUFFER_BYTES_MAX, |
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.period_bytes_min = PERIOD_BYTES_MIN, |
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.period_bytes_max = PERIOD_BYTES_MAX, |
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.periods_min = PERIODS_MIN, |
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.periods_max = PERIODS_MAX, |
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/*.fifo_size = 0,*/ |
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}; |
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static int |
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snd_ad1889_playback_open(struct snd_pcm_substream *ss) |
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{ |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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struct snd_pcm_runtime *rt = ss->runtime; |
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chip->psubs = ss; |
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rt->hw = snd_ad1889_playback_hw; |
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return 0; |
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} |
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static int |
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snd_ad1889_capture_open(struct snd_pcm_substream *ss) |
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{ |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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struct snd_pcm_runtime *rt = ss->runtime; |
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chip->csubs = ss; |
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rt->hw = snd_ad1889_capture_hw; |
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return 0; |
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} |
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static int |
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snd_ad1889_playback_close(struct snd_pcm_substream *ss) |
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{ |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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chip->psubs = NULL; |
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return 0; |
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} |
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static int |
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snd_ad1889_capture_close(struct snd_pcm_substream *ss) |
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{ |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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chip->csubs = NULL; |
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return 0; |
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} |
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static int |
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snd_ad1889_playback_prepare(struct snd_pcm_substream *ss) |
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{ |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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struct snd_pcm_runtime *rt = ss->runtime; |
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unsigned int size = snd_pcm_lib_buffer_bytes(ss); |
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unsigned int count = snd_pcm_lib_period_bytes(ss); |
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u16 reg; |
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ad1889_channel_reset(chip, AD_CHAN_WAV); |
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reg = ad1889_readw(chip, AD_DS_WSMC); |
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/* Mask out 16-bit / Stereo */ |
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reg &= ~(AD_DS_WSMC_WA16 | AD_DS_WSMC_WAST); |
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if (snd_pcm_format_width(rt->format) == 16) |
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reg |= AD_DS_WSMC_WA16; |
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if (rt->channels > 1) |
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reg |= AD_DS_WSMC_WAST; |
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/* let's make sure we don't clobber ourselves */ |
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spin_lock_irq(&chip->lock); |
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chip->wave.size = size; |
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chip->wave.reg = reg; |
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chip->wave.addr = rt->dma_addr; |
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ad1889_writew(chip, AD_DS_WSMC, chip->wave.reg); |
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/* Set sample rates on the codec */ |
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ad1889_writew(chip, AD_DS_WAS, rt->rate); |
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/* Set up DMA */ |
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ad1889_load_wave_buffer_address(chip, chip->wave.addr); |
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ad1889_load_wave_buffer_count(chip, size); |
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ad1889_load_wave_interrupt_count(chip, count); |
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/* writes flush */ |
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ad1889_readw(chip, AD_DS_WSMC); |
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spin_unlock_irq(&chip->lock); |
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dev_dbg(chip->card->dev, |
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"prepare playback: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n", |
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chip->wave.addr, count, size, reg, rt->rate); |
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return 0; |
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} |
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static int |
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snd_ad1889_capture_prepare(struct snd_pcm_substream *ss) |
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{ |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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struct snd_pcm_runtime *rt = ss->runtime; |
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unsigned int size = snd_pcm_lib_buffer_bytes(ss); |
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unsigned int count = snd_pcm_lib_period_bytes(ss); |
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u16 reg; |
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ad1889_channel_reset(chip, AD_CHAN_ADC); |
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reg = ad1889_readw(chip, AD_DS_RAMC); |
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/* Mask out 16-bit / Stereo */ |
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reg &= ~(AD_DS_RAMC_AD16 | AD_DS_RAMC_ADST); |
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if (snd_pcm_format_width(rt->format) == 16) |
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reg |= AD_DS_RAMC_AD16; |
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if (rt->channels > 1) |
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reg |= AD_DS_RAMC_ADST; |
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/* let's make sure we don't clobber ourselves */ |
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spin_lock_irq(&chip->lock); |
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chip->ramc.size = size; |
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chip->ramc.reg = reg; |
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chip->ramc.addr = rt->dma_addr; |
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ad1889_writew(chip, AD_DS_RAMC, chip->ramc.reg); |
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/* Set up DMA */ |
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ad1889_load_adc_buffer_address(chip, chip->ramc.addr); |
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ad1889_load_adc_buffer_count(chip, size); |
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ad1889_load_adc_interrupt_count(chip, count); |
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/* writes flush */ |
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ad1889_readw(chip, AD_DS_RAMC); |
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spin_unlock_irq(&chip->lock); |
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dev_dbg(chip->card->dev, |
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"prepare capture: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n", |
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chip->ramc.addr, count, size, reg, rt->rate); |
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return 0; |
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} |
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/* this is called in atomic context with IRQ disabled. |
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Must be as fast as possible and not sleep. |
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DMA should be *triggered* by this call. |
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The WSMC "WAEN" bit triggers DMA Wave On/Off */ |
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static int |
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snd_ad1889_playback_trigger(struct snd_pcm_substream *ss, int cmd) |
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{ |
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u16 wsmc; |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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wsmc = ad1889_readw(chip, AD_DS_WSMC); |
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switch (cmd) { |
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case SNDRV_PCM_TRIGGER_START: |
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/* enable DMA loop & interrupts */ |
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ad1889_writew(chip, AD_DMA_WAV, AD_DMA_LOOP | AD_DMA_IM_CNT); |
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wsmc |= AD_DS_WSMC_WAEN; |
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/* 1 to clear CHSS bit */ |
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ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_WAVS); |
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ad1889_unmute(chip); |
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break; |
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case SNDRV_PCM_TRIGGER_STOP: |
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ad1889_mute(chip); |
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wsmc &= ~AD_DS_WSMC_WAEN; |
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break; |
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default: |
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snd_BUG(); |
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return -EINVAL; |
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} |
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chip->wave.reg = wsmc; |
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ad1889_writew(chip, AD_DS_WSMC, wsmc); |
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ad1889_readw(chip, AD_DS_WSMC); /* flush */ |
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/* reset the chip when STOP - will disable IRQs */ |
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if (cmd == SNDRV_PCM_TRIGGER_STOP) |
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ad1889_channel_reset(chip, AD_CHAN_WAV); |
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return 0; |
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} |
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/* this is called in atomic context with IRQ disabled. |
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Must be as fast as possible and not sleep. |
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DMA should be *triggered* by this call. |
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The RAMC "ADEN" bit triggers DMA ADC On/Off */ |
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static int |
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snd_ad1889_capture_trigger(struct snd_pcm_substream *ss, int cmd) |
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{ |
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u16 ramc; |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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ramc = ad1889_readw(chip, AD_DS_RAMC); |
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switch (cmd) { |
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case SNDRV_PCM_TRIGGER_START: |
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/* enable DMA loop & interrupts */ |
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ad1889_writew(chip, AD_DMA_ADC, AD_DMA_LOOP | AD_DMA_IM_CNT); |
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ramc |= AD_DS_RAMC_ADEN; |
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/* 1 to clear CHSS bit */ |
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ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_ADCS); |
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break; |
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case SNDRV_PCM_TRIGGER_STOP: |
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ramc &= ~AD_DS_RAMC_ADEN; |
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break; |
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default: |
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return -EINVAL; |
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} |
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chip->ramc.reg = ramc; |
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ad1889_writew(chip, AD_DS_RAMC, ramc); |
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ad1889_readw(chip, AD_DS_RAMC); /* flush */ |
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/* reset the chip when STOP - will disable IRQs */ |
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if (cmd == SNDRV_PCM_TRIGGER_STOP) |
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ad1889_channel_reset(chip, AD_CHAN_ADC); |
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return 0; |
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} |
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/* Called in atomic context with IRQ disabled */ |
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static snd_pcm_uframes_t |
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snd_ad1889_playback_pointer(struct snd_pcm_substream *ss) |
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{ |
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size_t ptr = 0; |
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struct snd_ad1889 *chip = snd_pcm_substream_chip(ss); |
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if (unlikely(!(chip->wave.reg & AD_DS_WSMC_WAEN))) |
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return 0; |
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ptr = ad1889_readl(chip, AD_DMA_WAVCA); |
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ptr -= chip->wave.addr; |
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if (snd_BUG_ON(ptr >= chip->wave.size)) |
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return 0; |
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return bytes_to_frames(ss->runtime, ptr); |
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} |
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/* Called in atomic context with IRQ disabled */ |
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static snd_pcm_uframes_t |
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snd_ad1889_capture_pointer(struct snd_pcm_substream *ss) |
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{ |
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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; |
|
|
|
if (snd_BUG_ON(ptr >= chip->ramc.size)) |
|
return 0; |
|
|
|
return bytes_to_frames(ss->runtime, ptr); |
|
} |
|
|
|
static const struct snd_pcm_ops snd_ad1889_playback_ops = { |
|
.open = snd_ad1889_playback_open, |
|
.close = snd_ad1889_playback_close, |
|
.prepare = snd_ad1889_playback_prepare, |
|
.trigger = snd_ad1889_playback_trigger, |
|
.pointer = snd_ad1889_playback_pointer, |
|
}; |
|
|
|
static const struct snd_pcm_ops snd_ad1889_capture_ops = { |
|
.open = snd_ad1889_capture_open, |
|
.close = snd_ad1889_capture_close, |
|
.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) |
|
{ |
|
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)) |
|
dev_dbg(chip->card->dev, |
|
"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 int |
|
snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device) |
|
{ |
|
int err; |
|
struct snd_pcm *pcm; |
|
|
|
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->info_flags = 0; |
|
strcpy(pcm->name, chip->card->shortname); |
|
|
|
chip->pcm = pcm; |
|
chip->psubs = NULL; |
|
chip->csubs = NULL; |
|
|
|
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, |
|
BUFFER_BYTES_MAX / 2, BUFFER_BYTES_MAX); |
|
|
|
return 0; |
|
} |
|
|
|
static void |
|
snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *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) * 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 |
|
snd_ad1889_proc_init(struct snd_ad1889 *chip) |
|
{ |
|
snd_card_ro_proc_new(chip->card, chip->card->driver, |
|
chip, snd_ad1889_proc_read); |
|
} |
|
|
|
static const 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 |
|
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(struct snd_ac97_bus *bus) |
|
{ |
|
struct snd_ad1889 *chip = bus->private_data; |
|
chip->ac97_bus = NULL; |
|
} |
|
|
|
static void |
|
snd_ad1889_ac97_free(struct snd_ac97 *ac97) |
|
{ |
|
struct snd_ad1889 *chip = ac97->private_data; |
|
chip->ac97 = NULL; |
|
} |
|
|
|
static int |
|
snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) |
|
{ |
|
int err; |
|
struct snd_ac97_template ac97; |
|
static const struct snd_ac97_bus_ops 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); |
|
|
|
if (chip->irq >= 0) |
|
free_irq(chip->irq, chip); |
|
|
|
skip_hw: |
|
iounmap(chip->iobase); |
|
pci_release_regions(chip->pci); |
|
pci_disable_device(chip->pci); |
|
kfree(chip); |
|
return 0; |
|
} |
|
|
|
static int |
|
snd_ad1889_dev_free(struct snd_device *device) |
|
{ |
|
struct snd_ad1889 *chip = device->device_data; |
|
return snd_ad1889_free(chip); |
|
} |
|
|
|
static int |
|
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 */ |
|
|
|
usleep_range(10000, 11000); |
|
|
|
/* enable Master and Target abort interrupts */ |
|
ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE); |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
snd_ad1889_create(struct snd_card *card, |
|
struct pci_dev *pci, |
|
struct snd_ad1889 **rchip) |
|
{ |
|
int err; |
|
|
|
struct snd_ad1889 *chip; |
|
static const struct snd_device_ops ops = { |
|
.dev_free = snd_ad1889_dev_free, |
|
}; |
|
|
|
*rchip = NULL; |
|
|
|
if ((err = pci_enable_device(pci)) < 0) |
|
return err; |
|
|
|
/* check PCI availability (32bit DMA) */ |
|
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) { |
|
dev_err(card->dev, "error setting 32-bit DMA mask.\n"); |
|
pci_disable_device(pci); |
|
return -ENXIO; |
|
} |
|
|
|
/* allocate chip specific data with zero-filled memory */ |
|
if ((chip = kzalloc(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 = pci_ioremap_bar(pci, 0); |
|
if (chip->iobase == NULL) { |
|
dev_err(card->dev, "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, |
|
IRQF_SHARED, KBUILD_MODNAME, chip)) { |
|
dev_err(card->dev, "cannot obtain IRQ %d\n", pci->irq); |
|
snd_ad1889_free(chip); |
|
return -EBUSY; |
|
} |
|
|
|
chip->irq = pci->irq; |
|
card->sync_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; |
|
} |
|
|
|
*rchip = chip; |
|
|
|
return 0; |
|
|
|
free_and_ret: |
|
kfree(chip); |
|
pci_disable_device(pci); |
|
|
|
return err; |
|
} |
|
|
|
static int |
|
snd_ad1889_probe(struct pci_dev *pci, |
|
const struct pci_device_id *pci_id) |
|
{ |
|
int err; |
|
static int devno; |
|
struct snd_card *card; |
|
struct snd_ad1889 *chip; |
|
|
|
/* (1) */ |
|
if (devno >= SNDRV_CARDS) |
|
return -ENODEV; |
|
if (!enable[devno]) { |
|
devno++; |
|
return -ENOENT; |
|
} |
|
|
|
/* (2) */ |
|
err = snd_card_new(&pci->dev, index[devno], id[devno], THIS_MODULE, |
|
0, &card); |
|
/* XXX REVISIT: we can probably allocate chip in this call */ |
|
if (err < 0) |
|
return err; |
|
|
|
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); |
|
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 |
|
snd_ad1889_remove(struct pci_dev *pci) |
|
{ |
|
snd_card_free(pci_get_drvdata(pci)); |
|
} |
|
|
|
static const 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_driver = { |
|
.name = KBUILD_MODNAME, |
|
.id_table = snd_ad1889_ids, |
|
.probe = snd_ad1889_probe, |
|
.remove = snd_ad1889_remove, |
|
}; |
|
|
|
module_pci_driver(ad1889_pci_driver);
|
|
|