mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-11-01 10:33:27 +00:00
2c66cb99d1
Now that we have multi-component support, take the time to unify the SPORT implementations a bit and make the setup dynamic. This kills off the global sport_handle which was shared across all the Blackfin machine drivers. The pin management aspect is off loaded to platform resources, and now multiple SPORTs can be instantiated simultaneously. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Scott Jiang <scott.jiang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
174 lines
4.8 KiB
C
174 lines
4.8 KiB
C
/*
|
|
* File: bf5xx_sport.h
|
|
* Based on:
|
|
* Author: Roy Huang <roy.huang@analog.com>
|
|
*
|
|
* Created:
|
|
* Description:
|
|
*
|
|
* Copyright 2004-2007 Analog Devices Inc.
|
|
*
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
* 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.
|
|
*
|
|
* 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, see the file COPYING, or write
|
|
* to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
|
|
#ifndef __BF5XX_SPORT_H__
|
|
#define __BF5XX_SPORT_H__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/wait.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/platform_device.h>
|
|
#include <asm/dma.h>
|
|
#include <asm/bfin_sport.h>
|
|
|
|
#define DESC_ELEMENT_COUNT 9
|
|
|
|
struct sport_device {
|
|
int num;
|
|
int dma_rx_chan;
|
|
int dma_tx_chan;
|
|
int err_irq;
|
|
const unsigned short *pin_req;
|
|
struct sport_register *regs;
|
|
|
|
unsigned char *rx_buf;
|
|
unsigned char *tx_buf;
|
|
unsigned int rx_fragsize;
|
|
unsigned int tx_fragsize;
|
|
unsigned int rx_frags;
|
|
unsigned int tx_frags;
|
|
unsigned int wdsize;
|
|
|
|
/* for dummy dma transfer */
|
|
void *dummy_buf;
|
|
unsigned int dummy_count;
|
|
|
|
/* DMA descriptor ring head of current audio stream*/
|
|
struct dmasg *dma_rx_desc;
|
|
struct dmasg *dma_tx_desc;
|
|
unsigned int rx_desc_bytes;
|
|
unsigned int tx_desc_bytes;
|
|
|
|
unsigned int rx_run:1; /* rx is running */
|
|
unsigned int tx_run:1; /* tx is running */
|
|
|
|
struct dmasg *dummy_rx_desc;
|
|
struct dmasg *dummy_tx_desc;
|
|
|
|
struct dmasg *curr_rx_desc;
|
|
struct dmasg *curr_tx_desc;
|
|
|
|
int rx_curr_frag;
|
|
int tx_curr_frag;
|
|
|
|
unsigned int rcr1;
|
|
unsigned int rcr2;
|
|
int rx_tdm_count;
|
|
|
|
unsigned int tcr1;
|
|
unsigned int tcr2;
|
|
int tx_tdm_count;
|
|
|
|
void (*rx_callback)(void *data);
|
|
void *rx_data;
|
|
void (*tx_callback)(void *data);
|
|
void *tx_data;
|
|
void (*err_callback)(void *data);
|
|
void *err_data;
|
|
unsigned char *tx_dma_buf;
|
|
unsigned char *rx_dma_buf;
|
|
#ifdef CONFIG_SND_BF5XX_MMAP_SUPPORT
|
|
dma_addr_t tx_dma_phy;
|
|
dma_addr_t rx_dma_phy;
|
|
int tx_pos;/*pcm sample count*/
|
|
int rx_pos;
|
|
unsigned int tx_buffer_size;
|
|
unsigned int rx_buffer_size;
|
|
int tx_delay_pos;
|
|
int once;
|
|
#endif
|
|
void *private_data;
|
|
};
|
|
|
|
struct sport_param {
|
|
int num;
|
|
int dma_rx_chan;
|
|
int dma_tx_chan;
|
|
int err_irq;
|
|
const unsigned short *pin_req;
|
|
struct sport_register *regs;
|
|
unsigned int wdsize;
|
|
unsigned int dummy_count;
|
|
void *private_data;
|
|
};
|
|
|
|
struct sport_device *sport_init(struct platform_device *pdev,
|
|
unsigned int wdsize, unsigned int dummy_count, size_t priv_size);
|
|
|
|
void sport_done(struct sport_device *sport);
|
|
|
|
/* first use these ...*/
|
|
|
|
/* note: multichannel is in units of 8 channels, tdm_count is number of channels
|
|
* NOT / 8 ! all channels are enabled by default */
|
|
int sport_set_multichannel(struct sport_device *sport, int tdm_count,
|
|
u32 mask, int packed);
|
|
|
|
int sport_config_rx(struct sport_device *sport,
|
|
unsigned int rcr1, unsigned int rcr2,
|
|
unsigned int clkdiv, unsigned int fsdiv);
|
|
|
|
int sport_config_tx(struct sport_device *sport,
|
|
unsigned int tcr1, unsigned int tcr2,
|
|
unsigned int clkdiv, unsigned int fsdiv);
|
|
|
|
/* ... then these: */
|
|
|
|
/* buffer size (in bytes) == fragcount * fragsize_bytes */
|
|
|
|
/* this is not a very general api, it sets the dma to 2d autobuffer mode */
|
|
|
|
int sport_config_rx_dma(struct sport_device *sport, void *buf,
|
|
int fragcount, size_t fragsize_bytes);
|
|
|
|
int sport_config_tx_dma(struct sport_device *sport, void *buf,
|
|
int fragcount, size_t fragsize_bytes);
|
|
|
|
int sport_tx_start(struct sport_device *sport);
|
|
int sport_tx_stop(struct sport_device *sport);
|
|
int sport_rx_start(struct sport_device *sport);
|
|
int sport_rx_stop(struct sport_device *sport);
|
|
|
|
/* for use in interrupt handler */
|
|
unsigned long sport_curr_offset_rx(struct sport_device *sport);
|
|
unsigned long sport_curr_offset_tx(struct sport_device *sport);
|
|
|
|
void sport_incfrag(struct sport_device *sport, int *frag, int tx);
|
|
void sport_decfrag(struct sport_device *sport, int *frag, int tx);
|
|
|
|
int sport_set_rx_callback(struct sport_device *sport,
|
|
void (*rx_callback)(void *), void *rx_data);
|
|
int sport_set_tx_callback(struct sport_device *sport,
|
|
void (*tx_callback)(void *), void *tx_data);
|
|
int sport_set_err_callback(struct sport_device *sport,
|
|
void (*err_callback)(void *), void *err_data);
|
|
|
|
int sport_send_and_recv(struct sport_device *sport, u8 *out_data, \
|
|
u8 *in_data, int len);
|
|
#endif /* BF53X_SPORT_H */
|