/* * 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 _IMX_SSI_H #define _IMX_SSI_H #define SSI_STX0 0x00 #define SSI_STX1 0x04 #define SSI_SRX0 0x08 #define SSI_SRX1 0x0c #define SSI_SCR 0x10 #define SSI_SCR_CLK_IST (1 << 9) #define SSI_SCR_CLK_IST_SHIFT 9 #define SSI_SCR_TCH_EN (1 << 8) #define SSI_SCR_SYS_CLK_EN (1 << 7) #define SSI_SCR_I2S_MODE_NORM (0 << 5) #define SSI_SCR_I2S_MODE_MSTR (1 << 5) #define SSI_SCR_I2S_MODE_SLAVE (2 << 5) #define SSI_I2S_MODE_MASK (3 << 5) #define SSI_SCR_SYN (1 << 4) #define SSI_SCR_NET (1 << 3) #define SSI_SCR_RE (1 << 2) #define SSI_SCR_TE (1 << 1) #define SSI_SCR_SSIEN (1 << 0) #define SSI_SISR 0x14 #define SSI_SISR_MASK ((1 << 19) - 1) #define SSI_SISR_CMDAU (1 << 18) #define SSI_SISR_CMDDU (1 << 17) #define SSI_SISR_RXT (1 << 16) #define SSI_SISR_RDR1 (1 << 15) #define SSI_SISR_RDR0 (1 << 14) #define SSI_SISR_TDE1 (1 << 13) #define SSI_SISR_TDE0 (1 << 12) #define SSI_SISR_ROE1 (1 << 11) #define SSI_SISR_ROE0 (1 << 10) #define SSI_SISR_TUE1 (1 << 9) #define SSI_SISR_TUE0 (1 << 8) #define SSI_SISR_TFS (1 << 7) #define SSI_SISR_RFS (1 << 6) #define SSI_SISR_TLS (1 << 5) #define SSI_SISR_RLS (1 << 4) #define SSI_SISR_RFF1 (1 << 3) #define SSI_SISR_RFF0 (1 << 2) #define SSI_SISR_TFE1 (1 << 1) #define SSI_SISR_TFE0 (1 << 0) #define SSI_SIER 0x18 #define SSI_SIER_RDMAE (1 << 22) #define SSI_SIER_RIE (1 << 21) #define SSI_SIER_TDMAE (1 << 20) #define SSI_SIER_TIE (1 << 19) #define SSI_SIER_CMDAU_EN (1 << 18) #define SSI_SIER_CMDDU_EN (1 << 17) #define SSI_SIER_RXT_EN (1 << 16) #define SSI_SIER_RDR1_EN (1 << 15) #define SSI_SIER_RDR0_EN (1 << 14) #define SSI_SIER_TDE1_EN (1 << 13) #define SSI_SIER_TDE0_EN (1 << 12) #define SSI_SIER_ROE1_EN (1 << 11) #define SSI_SIER_ROE0_EN (1 << 10) #define SSI_SIER_TUE1_EN (1 << 9) #define SSI_SIER_TUE0_EN (1 << 8) #define SSI_SIER_TFS_EN (1 << 7) #define SSI_SIER_RFS_EN (1 << 6) #define SSI_SIER_TLS_EN (1 << 5) #define SSI_SIER_RLS_EN (1 << 4) #define SSI_SIER_RFF1_EN (1 << 3) #define SSI_SIER_RFF0_EN (1 << 2) #define SSI_SIER_TFE1_EN (1 << 1) #define SSI_SIER_TFE0_EN (1 << 0) #define SSI_STCR 0x1c #define SSI_STCR_TXBIT0 (1 << 9) #define SSI_STCR_TFEN1 (1 << 8) #define SSI_STCR_TFEN0 (1 << 7) #define SSI_FIFO_ENABLE_0_SHIFT 7 #define SSI_STCR_TFDIR (1 << 6) #define SSI_STCR_TXDIR (1 << 5) #define SSI_STCR_TSHFD (1 << 4) #define SSI_STCR_TSCKP (1 << 3) #define SSI_STCR_TFSI (1 << 2) #define SSI_STCR_TFSL (1 << 1) #define SSI_STCR_TEFS (1 << 0) #define SSI_SRCR 0x20 #define SSI_SRCR_RXBIT0 (1 << 9) #define SSI_SRCR_RFEN1 (1 << 8) #define SSI_SRCR_RFEN0 (1 << 7) #define SSI_FIFO_ENABLE_0_SHIFT 7 #define SSI_SRCR_RFDIR (1 << 6) #define SSI_SRCR_RXDIR (1 << 5) #define SSI_SRCR_RSHFD (1 << 4) #define SSI_SRCR_RSCKP (1 << 3) #define SSI_SRCR_RFSI (1 << 2) #define SSI_SRCR_RFSL (1 << 1) #define SSI_SRCR_REFS (1 << 0) #define SSI_SRCCR 0x28 #define SSI_SRCCR_DIV2 (1 << 18) #define SSI_SRCCR_PSR (1 << 17) #define SSI_SRCCR_WL(x) ((((x) - 2) >> 1) << 13) #define SSI_SRCCR_DC(x) (((x) & 0x1f) << 8) #define SSI_SRCCR_PM(x) (((x) & 0xff) << 0) #define SSI_SRCCR_WL_MASK (0xf << 13) #define SSI_SRCCR_DC_MASK (0x1f << 8) #define SSI_SRCCR_PM_MASK (0xff << 0) #define SSI_STCCR 0x24 #define SSI_STCCR_DIV2 (1 << 18) #define SSI_STCCR_PSR (1 << 17) #define SSI_STCCR_WL(x) ((((x) - 2) >> 1) << 13) #define SSI_STCCR_DC(x) (((x) & 0x1f) << 8) #define SSI_STCCR_PM(x) (((x) & 0xff) << 0) #define SSI_STCCR_WL_MASK (0xf << 13) #define SSI_STCCR_DC_MASK (0x1f << 8) #define SSI_STCCR_PM_MASK (0xff << 0) #define SSI_SFCSR 0x2c #define SSI_SFCSR_RFCNT1(x) (((x) & 0xf) << 28) #define SSI_RX_FIFO_1_COUNT_SHIFT 28 #define SSI_SFCSR_TFCNT1(x) (((x) & 0xf) << 24) #define SSI_TX_FIFO_1_COUNT_SHIFT 24 #define SSI_SFCSR_RFWM1(x) (((x) & 0xf) << 20) #define SSI_SFCSR_TFWM1(x) (((x) & 0xf) << 16) #define SSI_SFCSR_RFCNT0(x) (((x) & 0xf) << 12) #define SSI_RX_FIFO_0_COUNT_SHIFT 12 #define SSI_SFCSR_TFCNT0(x) (((x) & 0xf) << 8) #define SSI_TX_FIFO_0_COUNT_SHIFT 8 #define SSI_SFCSR_RFWM0(x) (((x) & 0xf) << 4) #define SSI_SFCSR_TFWM0(x) (((x) & 0xf) << 0) #define SSI_SFCSR_RFWM0_MASK (0xf << 4) #define SSI_SFCSR_TFWM0_MASK (0xf << 0) #define SSI_STR 0x30 #define SSI_STR_TEST (1 << 15) #define SSI_STR_RCK2TCK (1 << 14) #define SSI_STR_RFS2TFS (1 << 13) #define SSI_STR_RXSTATE(x) (((x) & 0xf) << 8) #define SSI_STR_TXD2RXD (1 << 7) #define SSI_STR_TCK2RCK (1 << 6) #define SSI_STR_TFS2RFS (1 << 5) #define SSI_STR_TXSTATE(x) (((x) & 0xf) << 0) #define SSI_SOR 0x34 #define SSI_SOR_CLKOFF (1 << 6) #define SSI_SOR_RX_CLR (1 << 5) #define SSI_SOR_TX_CLR (1 << 4) #define SSI_SOR_INIT (1 << 3) #define SSI_SOR_WAIT(x) (((x) & 0x3) << 1) #define SSI_SOR_WAIT_MASK (0x3 << 1) #define SSI_SOR_SYNRST (1 << 0) #define SSI_SACNT 0x38 #define SSI_SACNT_FRDIV(x) (((x) & 0x3f) << 5) #define SSI_SACNT_WR (1 << 4) #define SSI_SACNT_RD (1 << 3) #define SSI_SACNT_TIF (1 << 2) #define SSI_SACNT_FV (1 << 1) #define SSI_SACNT_AC97EN (1 << 0) #define SSI_SACADD 0x3c #define SSI_SACDAT 0x40 #define SSI_SATAG 0x44 #define SSI_STMSK 0x48 #define SSI_SRMSK 0x4c #define SSI_SACCST 0x50 #define SSI_SACCEN 0x54 #define SSI_SACCDIS 0x58 /* SSI clock sources */ #define IMX_SSP_SYS_CLK 0 /* SSI audio dividers */ #define IMX_SSI_TX_DIV_2 0 #define IMX_SSI_TX_DIV_PSR 1 #define IMX_SSI_TX_DIV_PM 2 #define IMX_SSI_RX_DIV_2 3 #define IMX_SSI_RX_DIV_PSR 4 #define IMX_SSI_RX_DIV_PM 5 extern struct snd_soc_dai imx_ssi_pcm_dai[2]; extern struct snd_soc_platform imx_soc_platform; #define DRV_NAME "imx-ssi" struct imx_pcm_dma_params { int dma; unsigned long dma_addr; int burstsize; }; struct imx_ssi { struct platform_device *ac97_dev; struct snd_soc_device imx_ac97; struct clk *clk; void __iomem *base; int irq; int fiq_enable; unsigned int offset; unsigned int flags; void (*ac97_reset) (struct snd_ac97 *ac97); void (*ac97_warm_reset)(struct snd_ac97 *ac97); struct imx_pcm_dma_params dma_params_rx; struct imx_pcm_dma_params dma_params_tx; int enabled; }; struct snd_soc_platform *imx_ssi_fiq_init(struct platform_device *pdev, struct imx_ssi *ssi); void imx_ssi_fiq_exit(struct platform_device *pdev, struct imx_ssi *ssi); struct snd_soc_platform *imx_ssi_dma_mx2_init(struct platform_device *pdev, struct imx_ssi *ssi); int snd_imx_pcm_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma); int imx_pcm_new(struct snd_card *card, struct snd_soc_dai *dai, struct snd_pcm *pcm); void imx_pcm_free(struct snd_pcm *pcm); /* * Do not change this as the FIQ handler depends on this size */ #define IMX_SSI_DMABUF_SIZE (64 * 1024) #define DMA_RXFIFO_BURST 0x4 #define DMA_TXFIFO_BURST 0x6 #endif /* _IMX_SSI_H */