| /* |
| * Copyright 2012-2013 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 __FSL_SAI_H |
| #define __FSL_SAI_H |
| |
| #include <sound/dmaengine_pcm.h> |
| |
| #define FSL_SAI_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ |
| SNDRV_PCM_FMTBIT_S20_3LE |\ |
| SNDRV_PCM_FMTBIT_S24_LE) |
| |
| /* SAI Register Map Register */ |
| #define FSL_SAI_TCSR 0x00 /* SAI Transmit Control */ |
| #define FSL_SAI_TCR1 0x04 /* SAI Transmit Configuration 1 */ |
| #define FSL_SAI_TCR2 0x08 /* SAI Transmit Configuration 2 */ |
| #define FSL_SAI_TCR3 0x0c /* SAI Transmit Configuration 3 */ |
| #define FSL_SAI_TCR4 0x10 /* SAI Transmit Configuration 4 */ |
| #define FSL_SAI_TCR5 0x14 /* SAI Transmit Configuration 5 */ |
| #define FSL_SAI_TDR 0x20 /* SAI Transmit Data */ |
| #define FSL_SAI_TFR 0x40 /* SAI Transmit FIFO */ |
| #define FSL_SAI_TMR 0x60 /* SAI Transmit Mask */ |
| #define FSL_SAI_RCSR 0x80 /* SAI Receive Control */ |
| #define FSL_SAI_RCR1 0x84 /* SAI Receive Configuration 1 */ |
| #define FSL_SAI_RCR2 0x88 /* SAI Receive Configuration 2 */ |
| #define FSL_SAI_RCR3 0x8c /* SAI Receive Configuration 3 */ |
| #define FSL_SAI_RCR4 0x90 /* SAI Receive Configuration 4 */ |
| #define FSL_SAI_RCR5 0x94 /* SAI Receive Configuration 5 */ |
| #define FSL_SAI_RDR 0xa0 /* SAI Receive Data */ |
| #define FSL_SAI_RFR 0xc0 /* SAI Receive FIFO */ |
| #define FSL_SAI_RMR 0xe0 /* SAI Receive Mask */ |
| |
| #define FSL_SAI_xCSR(tx) (tx ? FSL_SAI_TCSR : FSL_SAI_RCSR) |
| #define FSL_SAI_xCR1(tx) (tx ? FSL_SAI_TCR1 : FSL_SAI_RCR1) |
| #define FSL_SAI_xCR2(tx) (tx ? FSL_SAI_TCR2 : FSL_SAI_RCR2) |
| #define FSL_SAI_xCR3(tx) (tx ? FSL_SAI_TCR3 : FSL_SAI_RCR3) |
| #define FSL_SAI_xCR4(tx) (tx ? FSL_SAI_TCR4 : FSL_SAI_RCR4) |
| #define FSL_SAI_xCR5(tx) (tx ? FSL_SAI_TCR5 : FSL_SAI_RCR5) |
| #define FSL_SAI_xDR(tx) (tx ? FSL_SAI_TDR : FSL_SAI_RDR) |
| #define FSL_SAI_xFR(tx) (tx ? FSL_SAI_TFR : FSL_SAI_RFR) |
| #define FSL_SAI_xMR(tx) (tx ? FSL_SAI_TMR : FSL_SAI_RMR) |
| |
| /* SAI Transmit/Recieve Control Register */ |
| #define FSL_SAI_CSR_TERE BIT(31) |
| #define FSL_SAI_CSR_FR BIT(25) |
| #define FSL_SAI_CSR_SR BIT(24) |
| #define FSL_SAI_CSR_xF_SHIFT 16 |
| #define FSL_SAI_CSR_xF_W_SHIFT 18 |
| #define FSL_SAI_CSR_xF_MASK (0x1f << FSL_SAI_CSR_xF_SHIFT) |
| #define FSL_SAI_CSR_xF_W_MASK (0x7 << FSL_SAI_CSR_xF_W_SHIFT) |
| #define FSL_SAI_CSR_WSF BIT(20) |
| #define FSL_SAI_CSR_SEF BIT(19) |
| #define FSL_SAI_CSR_FEF BIT(18) |
| #define FSL_SAI_CSR_FWF BIT(17) |
| #define FSL_SAI_CSR_FRF BIT(16) |
| #define FSL_SAI_CSR_xIE_SHIFT 8 |
| #define FSL_SAI_CSR_xIE_MASK (0x1f << FSL_SAI_CSR_xIE_SHIFT) |
| #define FSL_SAI_CSR_WSIE BIT(12) |
| #define FSL_SAI_CSR_SEIE BIT(11) |
| #define FSL_SAI_CSR_FEIE BIT(10) |
| #define FSL_SAI_CSR_FWIE BIT(9) |
| #define FSL_SAI_CSR_FRIE BIT(8) |
| #define FSL_SAI_CSR_FRDE BIT(0) |
| |
| /* SAI Transmit and Recieve Configuration 1 Register */ |
| #define FSL_SAI_CR1_RFW_MASK 0x1f |
| |
| /* SAI Transmit and Recieve Configuration 2 Register */ |
| #define FSL_SAI_CR2_SYNC BIT(30) |
| #define FSL_SAI_CR2_MSEL_MASK (0x3 << 26) |
| #define FSL_SAI_CR2_MSEL_BUS 0 |
| #define FSL_SAI_CR2_MSEL_MCLK1 BIT(26) |
| #define FSL_SAI_CR2_MSEL_MCLK2 BIT(27) |
| #define FSL_SAI_CR2_MSEL_MCLK3 (BIT(26) | BIT(27)) |
| #define FSL_SAI_CR2_MSEL(ID) ((ID) << 26) |
| #define FSL_SAI_CR2_BCP BIT(25) |
| #define FSL_SAI_CR2_BCD_MSTR BIT(24) |
| #define FSL_SAI_CR2_DIV_MASK 0xff |
| |
| /* SAI Transmit and Recieve Configuration 3 Register */ |
| #define FSL_SAI_CR3_TRCE BIT(16) |
| #define FSL_SAI_CR3_WDFL(x) (x) |
| #define FSL_SAI_CR3_WDFL_MASK 0x1f |
| |
| /* SAI Transmit and Recieve Configuration 4 Register */ |
| #define FSL_SAI_CR4_FRSZ(x) (((x) - 1) << 16) |
| #define FSL_SAI_CR4_FRSZ_MASK (0x1f << 16) |
| #define FSL_SAI_CR4_SYWD(x) (((x) - 1) << 8) |
| #define FSL_SAI_CR4_SYWD_MASK (0x1f << 8) |
| #define FSL_SAI_CR4_MF BIT(4) |
| #define FSL_SAI_CR4_FSE BIT(3) |
| #define FSL_SAI_CR4_FSP BIT(1) |
| #define FSL_SAI_CR4_FSD_MSTR BIT(0) |
| |
| /* SAI Transmit and Recieve Configuration 5 Register */ |
| #define FSL_SAI_CR5_WNW(x) (((x) - 1) << 24) |
| #define FSL_SAI_CR5_WNW_MASK (0x1f << 24) |
| #define FSL_SAI_CR5_W0W(x) (((x) - 1) << 16) |
| #define FSL_SAI_CR5_W0W_MASK (0x1f << 16) |
| #define FSL_SAI_CR5_FBT(x) ((x) << 8) |
| #define FSL_SAI_CR5_FBT_MASK (0x1f << 8) |
| |
| /* SAI type */ |
| #define FSL_SAI_DMA BIT(0) |
| #define FSL_SAI_USE_AC97 BIT(1) |
| #define FSL_SAI_NET BIT(2) |
| #define FSL_SAI_TRA_SYN BIT(3) |
| #define FSL_SAI_REC_SYN BIT(4) |
| #define FSL_SAI_USE_I2S_SLAVE BIT(5) |
| |
| #define FSL_FMT_TRANSMITTER 0 |
| #define FSL_FMT_RECEIVER 1 |
| |
| /* SAI clock sources */ |
| #define FSL_SAI_CLK_BUS 0 |
| #define FSL_SAI_CLK_MAST1 1 |
| #define FSL_SAI_CLK_MAST2 2 |
| #define FSL_SAI_CLK_MAST3 3 |
| |
| #define FSL_SAI_MCLK_MAX 4 |
| |
| /* SAI data transfer numbers per DMA request */ |
| #define FSL_SAI_MAXBURST_TX 6 |
| #define FSL_SAI_MAXBURST_RX 6 |
| |
| struct fsl_sai { |
| struct platform_device *pdev; |
| struct regmap *regmap; |
| struct clk *bus_clk; |
| struct clk *mclk_clk[FSL_SAI_MCLK_MAX]; |
| |
| bool is_slave_mode; |
| bool is_lsb_first; |
| bool is_dsp_mode; |
| bool sai_on_imx; |
| bool synchronous[2]; |
| |
| unsigned int mclk_id[2]; |
| unsigned int mclk_streams; |
| struct snd_dmaengine_dai_dma_data dma_params_rx; |
| struct snd_dmaengine_dai_dma_data dma_params_tx; |
| }; |
| |
| #define TX 1 |
| #define RX 0 |
| |
| #endif /* __FSL_SAI_H */ |