181 lines
4.9 KiB
C
181 lines
4.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
//
|
|
// siu.h - ALSA SoC driver for Renesas SH7343, SH7722 SIU peripheral.
|
|
//
|
|
// Copyright (C) 2009-2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
|
|
// Copyright (C) 2006 Carlos Munoz <carlos@kenati.com>
|
|
|
|
#ifndef SIU_H
|
|
#define SIU_H
|
|
|
|
/* Common kernel and user-space firmware-building defines and types */
|
|
|
|
#define YRAM0_SIZE (0x0040 / 4) /* 16 */
|
|
#define YRAM1_SIZE (0x0080 / 4) /* 32 */
|
|
#define YRAM2_SIZE (0x0040 / 4) /* 16 */
|
|
#define YRAM3_SIZE (0x0080 / 4) /* 32 */
|
|
#define YRAM4_SIZE (0x0080 / 4) /* 32 */
|
|
#define YRAM_DEF_SIZE (YRAM0_SIZE + YRAM1_SIZE + YRAM2_SIZE + \
|
|
YRAM3_SIZE + YRAM4_SIZE)
|
|
#define YRAM_FIR_SIZE (0x0400 / 4) /* 256 */
|
|
#define YRAM_IIR_SIZE (0x0200 / 4) /* 128 */
|
|
|
|
#define XRAM0_SIZE (0x0400 / 4) /* 256 */
|
|
#define XRAM1_SIZE (0x0200 / 4) /* 128 */
|
|
#define XRAM2_SIZE (0x0200 / 4) /* 128 */
|
|
|
|
/* PRAM program array size */
|
|
#define PRAM0_SIZE (0x0100 / 4) /* 64 */
|
|
#define PRAM1_SIZE ((0x2000 - 0x0100) / 4) /* 1984 */
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct siu_spb_param {
|
|
__u32 ab1a; /* input FIFO address */
|
|
__u32 ab0a; /* output FIFO address */
|
|
__u32 dir; /* 0=the ather except CPUOUTPUT, 1=CPUINPUT */
|
|
__u32 event; /* SPB program starting conditions */
|
|
__u32 stfifo; /* STFIFO register setting value */
|
|
__u32 trdat; /* TRDAT register setting value */
|
|
};
|
|
|
|
struct siu_firmware {
|
|
__u32 yram_fir_coeff[YRAM_FIR_SIZE];
|
|
__u32 pram0[PRAM0_SIZE];
|
|
__u32 pram1[PRAM1_SIZE];
|
|
__u32 yram0[YRAM0_SIZE];
|
|
__u32 yram1[YRAM1_SIZE];
|
|
__u32 yram2[YRAM2_SIZE];
|
|
__u32 yram3[YRAM3_SIZE];
|
|
__u32 yram4[YRAM4_SIZE];
|
|
__u32 spbpar_num;
|
|
struct siu_spb_param spbpar[32];
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/dmaengine.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/io.h>
|
|
#include <linux/sh_dma.h>
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
|
|
#define SIU_PERIOD_BYTES_MAX 8192 /* DMA transfer/period size */
|
|
#define SIU_PERIOD_BYTES_MIN 256 /* DMA transfer/period size */
|
|
#define SIU_PERIODS_MAX 64 /* Max periods in buffer */
|
|
#define SIU_PERIODS_MIN 4 /* Min periods in buffer */
|
|
#define SIU_BUFFER_BYTES_MAX (SIU_PERIOD_BYTES_MAX * SIU_PERIODS_MAX)
|
|
|
|
/* SIU ports: only one can be used at a time */
|
|
enum {
|
|
SIU_PORT_A,
|
|
SIU_PORT_B,
|
|
SIU_PORT_NUM,
|
|
};
|
|
|
|
/* SIU clock configuration */
|
|
enum {
|
|
SIU_CLKA_PLL,
|
|
SIU_CLKA_EXT,
|
|
SIU_CLKB_PLL,
|
|
SIU_CLKB_EXT
|
|
};
|
|
|
|
struct device;
|
|
struct siu_info {
|
|
struct device *dev;
|
|
int port_id;
|
|
u32 __iomem *pram;
|
|
u32 __iomem *xram;
|
|
u32 __iomem *yram;
|
|
u32 __iomem *reg;
|
|
struct siu_firmware fw;
|
|
};
|
|
|
|
struct siu_stream {
|
|
struct work_struct work;
|
|
struct snd_pcm_substream *substream;
|
|
snd_pcm_format_t format;
|
|
size_t buf_bytes;
|
|
size_t period_bytes;
|
|
int cur_period; /* Period currently in dma */
|
|
u32 volume;
|
|
snd_pcm_sframes_t xfer_cnt; /* Number of frames */
|
|
u8 rw_flg; /* transfer status */
|
|
/* DMA status */
|
|
struct dma_chan *chan; /* DMA channel */
|
|
struct dma_async_tx_descriptor *tx_desc;
|
|
dma_cookie_t cookie;
|
|
struct sh_dmae_slave param;
|
|
};
|
|
|
|
struct siu_port {
|
|
unsigned long play_cap; /* Used to track full duplex */
|
|
struct snd_pcm *pcm;
|
|
struct siu_stream playback;
|
|
struct siu_stream capture;
|
|
u32 stfifo; /* STFIFO value from firmware */
|
|
u32 trdat; /* TRDAT value from firmware */
|
|
};
|
|
|
|
extern struct siu_port *siu_ports[SIU_PORT_NUM];
|
|
|
|
static inline struct siu_port *siu_port_info(struct snd_pcm_substream *substream)
|
|
{
|
|
struct platform_device *pdev =
|
|
to_platform_device(substream->pcm->card->dev);
|
|
return siu_ports[pdev->id];
|
|
}
|
|
|
|
/* Register access */
|
|
static inline void siu_write32(u32 __iomem *addr, u32 val)
|
|
{
|
|
__raw_writel(val, addr);
|
|
}
|
|
|
|
static inline u32 siu_read32(u32 __iomem *addr)
|
|
{
|
|
return __raw_readl(addr);
|
|
}
|
|
|
|
/* SIU registers */
|
|
#define SIU_IFCTL (0x000 / sizeof(u32))
|
|
#define SIU_SRCTL (0x004 / sizeof(u32))
|
|
#define SIU_SFORM (0x008 / sizeof(u32))
|
|
#define SIU_CKCTL (0x00c / sizeof(u32))
|
|
#define SIU_TRDAT (0x010 / sizeof(u32))
|
|
#define SIU_STFIFO (0x014 / sizeof(u32))
|
|
#define SIU_DPAK (0x01c / sizeof(u32))
|
|
#define SIU_CKREV (0x020 / sizeof(u32))
|
|
#define SIU_EVNTC (0x028 / sizeof(u32))
|
|
#define SIU_SBCTL (0x040 / sizeof(u32))
|
|
#define SIU_SBPSET (0x044 / sizeof(u32))
|
|
#define SIU_SBFSTS (0x068 / sizeof(u32))
|
|
#define SIU_SBDVCA (0x06c / sizeof(u32))
|
|
#define SIU_SBDVCB (0x070 / sizeof(u32))
|
|
#define SIU_SBACTIV (0x074 / sizeof(u32))
|
|
#define SIU_DMAIA (0x090 / sizeof(u32))
|
|
#define SIU_DMAIB (0x094 / sizeof(u32))
|
|
#define SIU_DMAOA (0x098 / sizeof(u32))
|
|
#define SIU_DMAOB (0x09c / sizeof(u32))
|
|
#define SIU_DMAML (0x0a0 / sizeof(u32))
|
|
#define SIU_SPSTS (0x0cc / sizeof(u32))
|
|
#define SIU_SPCTL (0x0d0 / sizeof(u32))
|
|
#define SIU_BRGASEL (0x100 / sizeof(u32))
|
|
#define SIU_BRRA (0x104 / sizeof(u32))
|
|
#define SIU_BRGBSEL (0x108 / sizeof(u32))
|
|
#define SIU_BRRB (0x10c / sizeof(u32))
|
|
|
|
extern const struct snd_soc_component_driver siu_component;
|
|
extern struct siu_info *siu_i2s_data;
|
|
|
|
int siu_init_port(int port, struct siu_port **port_info, struct snd_card *card);
|
|
void siu_free_port(struct siu_port *port_info);
|
|
|
|
#endif
|
|
|
|
#endif /* SIU_H */
|