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