mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-22 17:01:14 +00:00
![Russell King](/assets/img/avatar_default.png)
There is no hardware restriction requiring a minimum of 8 periods, or a minimum of 2048 bytes in a period. Let's drop these values so that userspace has more flexibility in choosing these parameters. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Mark Brown <broonie@linaro.org>
148 lines
4.9 KiB
C
148 lines
4.9 KiB
C
/*
|
|
* kirkwood.h
|
|
*
|
|
* (c) 2010 Arnaud Patard <apatard@mandriva.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
|
|
#ifndef _KIRKWOOD_AUDIO_H
|
|
#define _KIRKWOOD_AUDIO_H
|
|
|
|
#define KIRKWOOD_RECORD_WIN 0
|
|
#define KIRKWOOD_PLAYBACK_WIN 1
|
|
#define KIRKWOOD_MAX_AUDIO_WIN 2
|
|
|
|
#define KIRKWOOD_AUDIO_WIN_BASE_REG(win) (0xA00 + ((win)<<3))
|
|
#define KIRKWOOD_AUDIO_WIN_CTRL_REG(win) (0xA04 + ((win)<<3))
|
|
|
|
|
|
#define KIRKWOOD_RECCTL 0x1000
|
|
#define KIRKWOOD_RECCTL_SPDIF_EN (1<<11)
|
|
#define KIRKWOOD_RECCTL_I2S_EN (1<<10)
|
|
#define KIRKWOOD_RECCTL_PAUSE (1<<9)
|
|
#define KIRKWOOD_RECCTL_MUTE (1<<8)
|
|
#define KIRKWOOD_RECCTL_BURST_MASK (3<<5)
|
|
#define KIRKWOOD_RECCTL_BURST_128 (2<<5)
|
|
#define KIRKWOOD_RECCTL_BURST_32 (1<<5)
|
|
#define KIRKWOOD_RECCTL_MONO (1<<4)
|
|
#define KIRKWOOD_RECCTL_MONO_CHAN_RIGHT (1<<3)
|
|
#define KIRKWOOD_RECCTL_MONO_CHAN_LEFT (0<<3)
|
|
#define KIRKWOOD_RECCTL_SIZE_MASK (7<<0)
|
|
#define KIRKWOOD_RECCTL_SIZE_16 (7<<0)
|
|
#define KIRKWOOD_RECCTL_SIZE_16_C (3<<0)
|
|
#define KIRKWOOD_RECCTL_SIZE_20 (2<<0)
|
|
#define KIRKWOOD_RECCTL_SIZE_24 (1<<0)
|
|
#define KIRKWOOD_RECCTL_SIZE_32 (0<<0)
|
|
|
|
#define KIRKWOOD_RECCTL_ENABLE_MASK (KIRKWOOD_RECCTL_SPDIF_EN | \
|
|
KIRKWOOD_RECCTL_I2S_EN)
|
|
|
|
#define KIRKWOOD_REC_BUF_ADDR 0x1004
|
|
#define KIRKWOOD_REC_BUF_SIZE 0x1008
|
|
#define KIRKWOOD_REC_BYTE_COUNT 0x100C
|
|
|
|
#define KIRKWOOD_PLAYCTL 0x1100
|
|
#define KIRKWOOD_PLAYCTL_PLAY_BUSY (1<<16)
|
|
#define KIRKWOOD_PLAYCTL_BURST_MASK (3<<11)
|
|
#define KIRKWOOD_PLAYCTL_BURST_128 (2<<11)
|
|
#define KIRKWOOD_PLAYCTL_BURST_32 (1<<11)
|
|
#define KIRKWOOD_PLAYCTL_PAUSE (1<<9)
|
|
#define KIRKWOOD_PLAYCTL_SPDIF_MUTE (1<<8)
|
|
#define KIRKWOOD_PLAYCTL_MONO_MASK (3<<5)
|
|
#define KIRKWOOD_PLAYCTL_MONO_BOTH (3<<5)
|
|
#define KIRKWOOD_PLAYCTL_MONO_OFF (0<<5)
|
|
#define KIRKWOOD_PLAYCTL_I2S_MUTE (1<<7)
|
|
#define KIRKWOOD_PLAYCTL_SPDIF_EN (1<<4)
|
|
#define KIRKWOOD_PLAYCTL_I2S_EN (1<<3)
|
|
#define KIRKWOOD_PLAYCTL_SIZE_MASK (7<<0)
|
|
#define KIRKWOOD_PLAYCTL_SIZE_16 (7<<0)
|
|
#define KIRKWOOD_PLAYCTL_SIZE_16_C (3<<0)
|
|
#define KIRKWOOD_PLAYCTL_SIZE_20 (2<<0)
|
|
#define KIRKWOOD_PLAYCTL_SIZE_24 (1<<0)
|
|
#define KIRKWOOD_PLAYCTL_SIZE_32 (0<<0)
|
|
|
|
#define KIRKWOOD_PLAYCTL_ENABLE_MASK (KIRKWOOD_PLAYCTL_SPDIF_EN | \
|
|
KIRKWOOD_PLAYCTL_I2S_EN)
|
|
|
|
#define KIRKWOOD_PLAY_BUF_ADDR 0x1104
|
|
#define KIRKWOOD_PLAY_BUF_SIZE 0x1108
|
|
#define KIRKWOOD_PLAY_BYTE_COUNT 0x110C
|
|
|
|
#define KIRKWOOD_DCO_CTL 0x1204
|
|
#define KIRKWOOD_DCO_CTL_OFFSET_MASK (0xFFF<<2)
|
|
#define KIRKWOOD_DCO_CTL_OFFSET_0 (0x800<<2)
|
|
#define KIRKWOOD_DCO_CTL_FREQ_MASK (3<<0)
|
|
#define KIRKWOOD_DCO_CTL_FREQ_11 (0<<0)
|
|
#define KIRKWOOD_DCO_CTL_FREQ_12 (1<<0)
|
|
#define KIRKWOOD_DCO_CTL_FREQ_24 (2<<0)
|
|
|
|
#define KIRKWOOD_DCO_SPCR_STATUS 0x120c
|
|
#define KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK (1<<16)
|
|
|
|
#define KIRKWOOD_CLOCKS_CTRL 0x1230
|
|
#define KIRKWOOD_MCLK_SOURCE_MASK (3<<0)
|
|
#define KIRKWOOD_MCLK_SOURCE_DCO (0<<0)
|
|
#define KIRKWOOD_MCLK_SOURCE_EXTCLK (3<<0)
|
|
|
|
#define KIRKWOOD_ERR_CAUSE 0x1300
|
|
#define KIRKWOOD_ERR_MASK 0x1304
|
|
|
|
#define KIRKWOOD_INT_CAUSE 0x1308
|
|
#define KIRKWOOD_INT_MASK 0x130C
|
|
#define KIRKWOOD_INT_CAUSE_PLAY_BYTES (1<<14)
|
|
#define KIRKWOOD_INT_CAUSE_REC_BYTES (1<<13)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_END (1<<7)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_3Q (1<<6)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_HALF (1<<5)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_1Q (1<<4)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_REC_END (1<<3)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_REC_3Q (1<<2)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_REC_HALF (1<<1)
|
|
#define KIRKWOOD_INT_CAUSE_DMA_REC_1Q (1<<0)
|
|
|
|
#define KIRKWOOD_REC_BYTE_INT_COUNT 0x1310
|
|
#define KIRKWOOD_PLAY_BYTE_INT_COUNT 0x1314
|
|
#define KIRKWOOD_BYTE_INT_COUNT_MASK 0xffffff
|
|
|
|
#define KIRKWOOD_I2S_PLAYCTL 0x2508
|
|
#define KIRKWOOD_I2S_RECCTL 0x2408
|
|
#define KIRKWOOD_I2S_CTL_JUST_MASK (0xf<<26)
|
|
#define KIRKWOOD_I2S_CTL_LJ (0<<26)
|
|
#define KIRKWOOD_I2S_CTL_I2S (5<<26)
|
|
#define KIRKWOOD_I2S_CTL_RJ (8<<26)
|
|
#define KIRKWOOD_I2S_CTL_SIZE_MASK (3<<30)
|
|
#define KIRKWOOD_I2S_CTL_SIZE_16 (3<<30)
|
|
#define KIRKWOOD_I2S_CTL_SIZE_20 (2<<30)
|
|
#define KIRKWOOD_I2S_CTL_SIZE_24 (1<<30)
|
|
#define KIRKWOOD_I2S_CTL_SIZE_32 (0<<30)
|
|
|
|
#define KIRKWOOD_AUDIO_BUF_MAX (16*1024*1024)
|
|
|
|
/* Theses values come from the marvell alsa driver */
|
|
/* need to find where they come from */
|
|
#define KIRKWOOD_SND_MIN_PERIODS 2
|
|
#define KIRKWOOD_SND_MAX_PERIODS 16
|
|
#define KIRKWOOD_SND_MIN_PERIOD_BYTES 256
|
|
#define KIRKWOOD_SND_MAX_PERIOD_BYTES 0x8000
|
|
#define KIRKWOOD_SND_MAX_BUFFER_BYTES (KIRKWOOD_SND_MAX_PERIOD_BYTES \
|
|
* KIRKWOOD_SND_MAX_PERIODS)
|
|
|
|
struct kirkwood_dma_data {
|
|
void __iomem *io;
|
|
struct clk *clk;
|
|
struct clk *extclk;
|
|
uint32_t ctl_play;
|
|
uint32_t ctl_rec;
|
|
struct snd_pcm_substream *substream_play;
|
|
struct snd_pcm_substream *substream_rec;
|
|
int irq;
|
|
int burst;
|
|
};
|
|
|
|
extern struct snd_soc_platform_driver kirkwood_soc_platform;
|
|
|
|
#endif
|