| /*
|
| *
|
| * Marvell Orion Alsa Sound driver
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| *
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| * Author: Maen Suleiman
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| * Copyright (C) 2008 Marvell Ltd.
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| *
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| *
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| * This program is free software; you can redistribute it and/or modify
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| * it under the terms of the GNU General Public License version 2 as
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| * published by the Free Software Foundation.
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| *
|
| */
|
| #define DRIVER_NAME "mv88fx_snd"
|
|
|
| #undef MV88FX_SND_DEBUG |
| #ifdef MV88FX_SND_DEBUG
|
| #define mv88fx_snd_debug(fmt, arg...) printk(KERN_DEBUG fmt, ##arg)
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| #else
|
| #define mv88fx_snd_debug(a...)
|
| #endif
|
|
|
| typedef struct {
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| unsigned int base;
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| unsigned int size;
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| } _audio_mem_info;
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|
|
| typedef struct {
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| u32 spdif_rec;
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| u32 spdif_play;
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| u32 i2s_rec;
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| u32 i2s_play;
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| _audio_mem_info mem_array[5];
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| } _audio_info;
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|
|
|
|
| struct mv88fx_snd_stream {
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| struct snd_pcm_substream *substream;
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| struct device* dev;
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| int direction; /* playback or capture */
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| #define PLAYBACK 0
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| #define CAPTURE 1
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| unsigned int dig_mode; /* i2s,spdif,both*/
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| #define I2S 1
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| #define SPDIF 2
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| int stereo; /* mono , stereo*/
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| int mono_mode; /* both mono, left mono, right mono*/
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| #define MONO_BOTH 0
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| #define MONO_LEFT 1
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| #define MONO_RIGHT 2
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| int clock_src;
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| #define DCO_CLOCK 0
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| #define SPCR_CLOCK 1
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| #define EXTERN_CLOCK 2
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| int rate;
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| int stat_mem; /* Channel status source*/
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| int format;
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| #define SAMPLE_32IN32 0
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| #define SAMPLE_24IN32 1
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| #define SAMPLE_20IN32 2
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| #define SAMPLE_16IN32 3
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| #define SAMPLE_16IN16 4
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| unsigned int dma_addr;
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| unsigned int dma_size;
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| unsigned int period_size;
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| unsigned int spdif_status[4]; /* SPDIF status */
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| unsigned char *area; /* virtual pointer */
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| dma_addr_t addr; /* physical address */
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|
|
|
|
| };
|
|
|
| struct mv88fx_snd_chip {
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| struct snd_card *card;
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| struct device *dev;
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| struct mv88fx_snd_platform_data *pdata; /* platform dara*/
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| struct mv88fx_snd_stream *stream[2]; /* run time values*/
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| struct mv88fx_snd_stream *stream_defaults[2]; /* default values*/
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| spinlock_t reg_lock; /* Register access spinlock */
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| struct resource *res; /* resource for IRQ and base*/
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| void __iomem *base; /* base address of the host */
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| int irq;
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| int loopback; /* When Loopback is enabled, playback
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| data is looped back to be recorded */
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| int ch_stat_valid; /* Playback SPDIF channel validity bit
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| value when REG selected */
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| int burst; /* DMA Burst Size */
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|
|
| #define SPDIF_MEM_STAT 0
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| #define SPDIF_REG_STAT 1
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| unsigned int dco_ctrl_offst;
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| int pcm_mode; /* pcm, nonpcm*/
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| #define PCM 0
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| #define NON_PCM 1
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| _audio_info *audio_info;
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|
|
| };
|
|
|
| #define MV88FX_SND_MIN_PERIODS 8
|
| #define MV88FX_SND_MAX_PERIODS 16
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| #define MV88FX_SND_MIN_PERIOD_BYTES 0x4000
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| #define MV88FX_SND_MAX_PERIOD_BYTES 0x4000
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|
|
|
|
| /* read/write registers */
|
|
|
| #define mv88fx_snd_writel(chip, offs, val) \
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| writel((val), (0xf1000000 + offs))
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|
|
| static inline unsigned int mv88fx_snd_readl(struct mv88fx_snd_chip *chip,
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| unsigned int offs)
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| {
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| unsigned int val = readl((0xf1000000 + offs));
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| return (val);
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| }
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| #define mv88fx_snd_bitset(chip, offs, bitmask) \
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| writel( (readl(0xf1000000 + offs) | (bitmask)), \
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| 0xf1000000 + offs)
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|
|
| #define mv88fx_snd_bitreset(chip, offs, bitmask) \
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| writel( (readl(0xf1000000 + offs) & (~(bitmask))), \
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| 0xf1000000 + offs)
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|
|
|
|
