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Diffstat (limited to 'sound/soc/mvf/mvf-sai.h')
| -rw-r--r-- | sound/soc/mvf/mvf-sai.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/sound/soc/mvf/mvf-sai.h b/sound/soc/mvf/mvf-sai.h new file mode 100644 index 000000000000..1406e28883a0 --- /dev/null +++ b/sound/soc/mvf/mvf-sai.h @@ -0,0 +1,160 @@ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _MVF_SAI_H +#define _MVF_SAI_H + +#define SAI_TX_DIV 0 + +#define SAI_TCSR 0x00 +#define SAI_TCSR_TE (1 << 31) +#define SAI_TCSR_FWF (1 << 17) +#define SAI_TCSR_FRIE (1 << 8) +#define SAI_TCSR_FRDE (1 << 0) + +#define SAI_TCR1 0x04 + +#define SAI_TCR2 0x08 +#define SAI_TCR2_SYNC (1 << 30) +#define SAI_TCR2_MSEL_MASK (0xff << 26) +#define SAI_TCR2_MSEL_BUS (0 << 26) +#define SAI_TCR2_MSEL_MCLK1 (1 << 26) +#define SAI_TCR2_MSEL_MCLK2 (2 << 26) +#define SAI_TCR2_MSEL_MCLK3 (3 << 26) +/* Bit clock is active low with driver outputs on + * falling edge and sample inputs on rising edge */ +#define SAI_TCR2_BCP (1 << 25) +#define SAI_TCR2_BCD_MSTR (1 << 24) +#define SAI_TCR2_DIV(x) (x) +#define SAI_TCR2_DIV_MASK 0xff + +#define SAI_TCR3 0x0c +#define SAI_TCR3_TCE (1 << 16) +#define SAI_TCR3_WDFL(x) (x) +#define SAI_TCR3_WDFL_MASK 0x1f + +#define SAI_TCR4 0x10 +#define SAI_TCR4_FRSZ(x) (x << 16) +#define SAI_TCR4_FRSZ_MASK (0x1f << 16) +#define SAI_TCR4_SYWD(x) ((x) << 8) +#define SAI_TCR4_SYWD_MASK (0x1f << 8) +#define SAI_TCR4_MF (1 << 4) +/* Frame sync is active low */ +#define SAI_TCR4_FSE (1 << 3) +#define SAI_TCR4_FSP (1 << 1) +#define SAI_TCR4_FSD_MSTR (1 << 0) + +#define SAI_TCR5 0x14 +#define SAI_TCR5_WNW(x) ((x) << 24) +#define SAI_TCR5_WNW_MASK (0x1f << 24) +#define SAI_TCR5_W0W(x) ((x) << 16) +#define SAI_TCR5_W0W_MASK (0x1f << 16) +#define SAI_TCR5_FBT(x) ((x) << 8) +#define SAI_TCR5_FBT_MASK (0x1f << 8) + +#define SAI_TDR 0x20 + +#define SAI_TFR 0x40 + +#define SAI_TMR 0x60 + + +#define SAI_RCSR 0x80 +#define SAI_RCSR_RE (1 << 31) +#define SAI_RCSR_FWF (1 << 17) +#define SAI_RCSR_FRIE (1 << 8) +#define SAI_RCSR_FRDE (1 << 0) + +#define SAI_RCR1 0x84 + +#define SAI_RCR2 0x88 +#define SAI_RCR2_MSEL_MASK (0xff << 26) +#define SAI_RCR2_MSEL_BUS (0 << 26) +#define SAI_RCR2_MSEL_MCLK1 (1 << 26) +#define SAI_RCR2_MSEL_MCLK2 (2 << 26) +#define SAI_RCR2_MSEL_MCLK3 (3 << 26) +/* Bit clock is active low with driver outputs on + * falling edge and sample inputs on rising edge */ +#define SAI_RCR2_BCP (1 << 25) +#define SAI_RCR2_BCD_MSTR (1 << 24) +#define SAI_RCR2_DIV(x) (x) +#define SAI_RCR2_DIV_MASK 0xff + +#define SAI_RCR3 0x8c +#define SAI_RCR3_TCE (1 << 16) +#define SAI_RCR3_WDFL(x) (x) +#define SAI_RCR3_WDFL_MASK 0x1f + +#define SAI_RCR4 0x90 +/* Frame sync is active low */ +#define SAI_RCR4_FRSZ(x) (x << 16) +#define SAI_RCR4_FRSZ_MASK (0x1f << 16) +#define SAI_RCR4_SYWD(x) (x << 8) +#define SAI_RCR4_SYWD_MASK (0x1f << 8) +#define SAI_RCR4_MF (1 << 4) +/* Frame sync is active low */ +#define SAI_RCR4_FSE (1 << 3) +#define SAI_RCR4_FSP (1 << 1) +#define SAI_RCR4_FSD_MSTR (1 << 0) + +#define SAI_RCR5 0x94 +#define SAI_RCR5_WNW(x) (x << 24) +#define SAI_RCR5_WNW_MASK (0x1f << 24) +#define SAI_RCR5_W0W(x) (x << 16) +#define SAI_RCR5_W0W_MASK (0x1f << 16) + +#define SAI_RDR 0xa0 + +#define SAI_RFR 0xc0 + +#define SAI_RMR 0xe0 + +/* SAI clock sources */ +#define MVF_SAI_BUS_CLK 0 +#define MVF_SAI_MAST_CLK1 1 +#define MVF_SAI_MAST_CLK2 2 +#define MVF_SAI_MAST_CLK3 3 + +/* SAI audio dividers */ +#define MVF_SAI_TX_DIV 0 +#define MVF_SAI_RX_DIV 1 + +#define DRV_NAME "mvf-sai" + +#include <linux/dmaengine.h> +#include <mach/dma.h> + +struct mvf_sai { + struct clk *clk; + void __iomem *base; + int irq; + int fiq_enable; + unsigned int offset; + + unsigned int flags; + + struct imx_pcm_dma_params dma_params_rx; + struct imx_pcm_dma_params dma_params_tx; + + int play_enabled; + int cap_enabled; + + struct platform_device *soc_platform_pdev; + struct platform_device *soc_platform_pdev_fiq; +}; + +int snd_mvf_pcm_mmap(struct snd_pcm_substream *substream, + struct vm_area_struct *vma); +int mvf_pcm_new(struct snd_card *card, struct snd_soc_dai *dai, + struct snd_pcm *pcm); +void mvf_pcm_free(struct snd_pcm *pcm); + +#define MVF_SAI_DMABUF_SIZE (32 * 1024) +#define TCD_NUMBER 4 + +#endif /* _MVF_SAI_H */ |