mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-27 03:28:58 +02:00
1a29ef8e97
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73
103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
/*
|
|
* sound/ubicom32/ubi32.h
|
|
* Common header file for all ubi32- sound drivers
|
|
*
|
|
* (C) Copyright 2009, Ubicom, Inc.
|
|
*
|
|
* This file is part of the Ubicom32 Linux Kernel Port.
|
|
*
|
|
* The Ubicom32 Linux Kernel Port 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.
|
|
*
|
|
* The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not,
|
|
* see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef _UBI32_H
|
|
#define _UBI32_H
|
|
|
|
#define SND_UBI32_DEBUG 0 // Debug flag
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <asm/devtree.h>
|
|
#include <asm/audio.h>
|
|
#include <asm/ubi32-pcm.h>
|
|
|
|
struct ubi32_snd_priv;
|
|
|
|
typedef int (*set_channels_t)(struct ubi32_snd_priv *priv, int channels);
|
|
typedef int (*set_rate_t)(struct ubi32_snd_priv *priv, int rate);
|
|
|
|
struct ubi32_snd_priv {
|
|
/*
|
|
* Any variables that are needed locally here but NOT in
|
|
* the VP itself should go in here.
|
|
*/
|
|
struct snd_card *card;
|
|
struct snd_pcm *pcm;
|
|
|
|
/*
|
|
* capture (1) or playback (0)
|
|
*/
|
|
int is_capture;
|
|
/*
|
|
* DAC parameters. These are the parameters for the specific
|
|
* DAC we are driving. The I2S component can run at a range
|
|
* of frequencies, but the DAC may be limited. We may want
|
|
* to make this an array of some sort in the future?
|
|
*
|
|
* min/max_sample_rate if set to 0 are ignored.
|
|
*/
|
|
int max_sample_rate;
|
|
int min_sample_rate;
|
|
|
|
/*
|
|
* The size a period (group) of audio samples. The VP does
|
|
* not need to know this; each DMA transfer is made to be
|
|
* one period.
|
|
*/
|
|
u32_t period_size;
|
|
|
|
spinlock_t ubi32_lock;
|
|
|
|
struct audio_regs *ar;
|
|
struct audio_dev_regs *adr;
|
|
u32 irq_idx;
|
|
u8 tx_irq;
|
|
u8 rx_irq;
|
|
|
|
void *client;
|
|
|
|
/*
|
|
* Operations which the base DAC driver can implement
|
|
*/
|
|
set_channels_t set_channels;
|
|
set_rate_t set_rate;
|
|
|
|
/*
|
|
* platform data
|
|
*/
|
|
struct ubi32pcm_platform_data *pdata;
|
|
|
|
/*
|
|
* Private driver data (used for DAC driver control, etc)
|
|
*/
|
|
void *drvdata;
|
|
};
|
|
|
|
#define snd_ubi32_priv_get_drv(priv) ((priv)->drvdata)
|
|
#define snd_ubi32_priv_set_drv(priv, data) (((priv)->drvdata) = (void *)(data))
|
|
|
|
extern int snd_ubi32_pcm_probe(struct ubi32_snd_priv *ubi32_priv, struct platform_device *pdev);
|
|
extern void snd_ubi32_pcm_remove(struct ubi32_snd_priv *ubi32_priv);
|
|
|
|
#endif
|