Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1 | /* |
| 2 | * ALSA SoC McASP Audio Layer for TI DAVINCI processor |
| 3 | * |
| 4 | * Multi-channel Audio Serial Port Driver |
| 5 | * |
| 6 | * Author: Nirmal Pandey <n-pandey@ti.com>, |
| 7 | * Suresh Rajashekara <suresh.r@ti.com> |
| 8 | * Steve Chen <schen@.mvista.com> |
| 9 | * |
| 10 | * Copyright: (C) 2009 MontaVista Software, Inc., <source@mvista.com> |
| 11 | * Copyright: (C) 2009 Texas Instruments, India |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License version 2 as |
| 15 | * published by the Free Software Foundation. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/device.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 21 | #include <linux/slab.h> |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 22 | #include <linux/delay.h> |
| 23 | #include <linux/io.h> |
Hebbar, Gururaja | 1088434 | 2012-08-08 20:40:32 +0530 | [diff] [blame] | 24 | #include <linux/pm_runtime.h> |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 25 | #include <linux/of.h> |
| 26 | #include <linux/of_platform.h> |
| 27 | #include <linux/of_device.h> |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 28 | |
| 29 | #include <sound/core.h> |
| 30 | #include <sound/pcm.h> |
| 31 | #include <sound/pcm_params.h> |
| 32 | #include <sound/initval.h> |
| 33 | #include <sound/soc.h> |
| 34 | |
| 35 | #include "davinci-pcm.h" |
| 36 | #include "davinci-mcasp.h" |
| 37 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 38 | struct davinci_mcasp { |
Peter Ujfalusi | 21400a7 | 2013-11-14 11:35:26 +0200 | [diff] [blame] | 39 | struct davinci_pcm_dma_params dma_params[2]; |
| 40 | void __iomem *base; |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 41 | u32 fifo_base; |
Peter Ujfalusi | 21400a7 | 2013-11-14 11:35:26 +0200 | [diff] [blame] | 42 | struct device *dev; |
| 43 | |
| 44 | /* McASP specific data */ |
| 45 | int tdm_slots; |
| 46 | u8 op_mode; |
| 47 | u8 num_serializer; |
| 48 | u8 *serial_dir; |
| 49 | u8 version; |
| 50 | u16 bclk_lrclk_ratio; |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 51 | int streams; |
Peter Ujfalusi | 21400a7 | 2013-11-14 11:35:26 +0200 | [diff] [blame] | 52 | |
| 53 | /* McASP FIFO related */ |
| 54 | u8 txnumevt; |
| 55 | u8 rxnumevt; |
| 56 | |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 57 | bool dat_port; |
| 58 | |
Peter Ujfalusi | 21400a7 | 2013-11-14 11:35:26 +0200 | [diff] [blame] | 59 | #ifdef CONFIG_PM_SLEEP |
| 60 | struct { |
| 61 | u32 txfmtctl; |
| 62 | u32 rxfmtctl; |
| 63 | u32 txfmt; |
| 64 | u32 rxfmt; |
| 65 | u32 aclkxctl; |
| 66 | u32 aclkrctl; |
| 67 | u32 pdir; |
| 68 | } context; |
| 69 | #endif |
| 70 | }; |
| 71 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 72 | static inline void mcasp_set_bits(void __iomem *reg, u32 val) |
| 73 | { |
| 74 | __raw_writel(__raw_readl(reg) | val, reg); |
| 75 | } |
| 76 | |
| 77 | static inline void mcasp_clr_bits(void __iomem *reg, u32 val) |
| 78 | { |
| 79 | __raw_writel((__raw_readl(reg) & ~(val)), reg); |
| 80 | } |
| 81 | |
| 82 | static inline void mcasp_mod_bits(void __iomem *reg, u32 val, u32 mask) |
| 83 | { |
| 84 | __raw_writel((__raw_readl(reg) & ~mask) | val, reg); |
| 85 | } |
| 86 | |
| 87 | static inline void mcasp_set_reg(void __iomem *reg, u32 val) |
| 88 | { |
| 89 | __raw_writel(val, reg); |
| 90 | } |
| 91 | |
| 92 | static inline u32 mcasp_get_reg(void __iomem *reg) |
| 93 | { |
| 94 | return (unsigned int)__raw_readl(reg); |
| 95 | } |
| 96 | |
Peter Ujfalusi | eba0ecf | 2013-11-14 11:35:28 +0200 | [diff] [blame] | 97 | static void mcasp_set_ctl_reg(void __iomem *regs, u32 val) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 98 | { |
| 99 | int i = 0; |
| 100 | |
| 101 | mcasp_set_bits(regs, val); |
| 102 | |
| 103 | /* programming GBLCTL needs to read back from GBLCTL and verfiy */ |
| 104 | /* loop count is to avoid the lock-up */ |
| 105 | for (i = 0; i < 1000; i++) { |
| 106 | if ((mcasp_get_reg(regs) & val) == val) |
| 107 | break; |
| 108 | } |
| 109 | |
| 110 | if (i == 1000 && ((mcasp_get_reg(regs) & val) != val)) |
| 111 | printk(KERN_ERR "GBLCTL write error\n"); |
| 112 | } |
| 113 | |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 114 | static bool mcasp_is_synchronous(struct davinci_mcasp *mcasp) |
| 115 | { |
| 116 | u32 rxfmctl = mcasp_get_reg(mcasp->base + DAVINCI_MCASP_RXFMCTL_REG); |
| 117 | u32 aclkxctl = mcasp_get_reg(mcasp->base + DAVINCI_MCASP_ACLKXCTL_REG); |
| 118 | |
| 119 | return !(aclkxctl & TX_ASYNC) && rxfmctl & AFSRE; |
| 120 | } |
| 121 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 122 | static void mcasp_start_rx(struct davinci_mcasp *mcasp) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 123 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 124 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, RXHCLKRST); |
| 125 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, RXCLKRST); |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 126 | |
| 127 | /* |
| 128 | * When ASYNC == 0 the transmit and receive sections operate |
| 129 | * synchronously from the transmit clock and frame sync. We need to make |
| 130 | * sure that the TX signlas are enabled when starting reception. |
| 131 | */ |
| 132 | if (mcasp_is_synchronous(mcasp)) { |
| 133 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, |
| 134 | TXHCLKRST); |
| 135 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, |
| 136 | TXCLKRST); |
| 137 | } |
| 138 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 139 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, RXSERCLR); |
| 140 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_RXBUF_REG, 0); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 141 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 142 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, RXSMRST); |
| 143 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, RXFSRST); |
| 144 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_RXBUF_REG, 0); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 145 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 146 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, RXSMRST); |
| 147 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, RXFSRST); |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 148 | |
| 149 | if (mcasp_is_synchronous(mcasp)) |
| 150 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, |
| 151 | TXFSRST); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 152 | } |
| 153 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 154 | static void mcasp_start_tx(struct davinci_mcasp *mcasp) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 155 | { |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 156 | u8 offset = 0, i; |
| 157 | u32 cnt; |
| 158 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 159 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, TXHCLKRST); |
| 160 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, TXCLKRST); |
| 161 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, TXSERCLR); |
| 162 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXBUF_REG, 0); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 163 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 164 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, TXSMRST); |
| 165 | mcasp_set_ctl_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, TXFSRST); |
| 166 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXBUF_REG, 0); |
| 167 | for (i = 0; i < mcasp->num_serializer; i++) { |
| 168 | if (mcasp->serial_dir[i] == TX_MODE) { |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 169 | offset = i; |
| 170 | break; |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | /* wait for TX ready */ |
| 175 | cnt = 0; |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 176 | while (!(mcasp_get_reg(mcasp->base + DAVINCI_MCASP_XRSRCTL_REG(offset)) & |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 177 | TXSTATE) && (cnt < 100000)) |
| 178 | cnt++; |
| 179 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 180 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXBUF_REG, 0); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 181 | } |
| 182 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 183 | static void davinci_mcasp_start(struct davinci_mcasp *mcasp, int stream) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 184 | { |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 185 | u32 reg; |
| 186 | |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 187 | mcasp->streams++; |
| 188 | |
Chaithrika U S | 539d3d8 | 2009-09-23 10:12:08 -0400 | [diff] [blame] | 189 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 190 | if (mcasp->txnumevt) { /* enable FIFO */ |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 191 | reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; |
| 192 | mcasp_clr_bits(mcasp->base + reg, FIFO_ENABLE); |
| 193 | mcasp_set_bits(mcasp->base + reg, FIFO_ENABLE); |
Vaibhav Bedia | 0d62427 | 2012-08-08 20:40:31 +0530 | [diff] [blame] | 194 | } |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 195 | mcasp_start_tx(mcasp); |
Chaithrika U S | 539d3d8 | 2009-09-23 10:12:08 -0400 | [diff] [blame] | 196 | } else { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 197 | if (mcasp->rxnumevt) { /* enable FIFO */ |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 198 | reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; |
| 199 | mcasp_clr_bits(mcasp->base + reg, FIFO_ENABLE); |
| 200 | mcasp_set_bits(mcasp->base + reg, FIFO_ENABLE); |
Vaibhav Bedia | 0d62427 | 2012-08-08 20:40:31 +0530 | [diff] [blame] | 201 | } |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 202 | mcasp_start_rx(mcasp); |
Chaithrika U S | 539d3d8 | 2009-09-23 10:12:08 -0400 | [diff] [blame] | 203 | } |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 204 | } |
| 205 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 206 | static void mcasp_stop_rx(struct davinci_mcasp *mcasp) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 207 | { |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 208 | /* |
| 209 | * In synchronous mode stop the TX clocks if no other stream is |
| 210 | * running |
| 211 | */ |
| 212 | if (mcasp_is_synchronous(mcasp) && !mcasp->streams) |
| 213 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, 0); |
| 214 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 215 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_GBLCTLR_REG, 0); |
| 216 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_RXSTAT_REG, 0xFFFFFFFF); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 217 | } |
| 218 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 219 | static void mcasp_stop_tx(struct davinci_mcasp *mcasp) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 220 | { |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 221 | u32 val = 0; |
| 222 | |
| 223 | /* |
| 224 | * In synchronous mode keep TX clocks running if the capture stream is |
| 225 | * still running. |
| 226 | */ |
| 227 | if (mcasp_is_synchronous(mcasp) && mcasp->streams) |
| 228 | val = TXHCLKRST | TXCLKRST | TXFSRST; |
| 229 | |
| 230 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_GBLCTLX_REG, val); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 231 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXSTAT_REG, 0xFFFFFFFF); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 232 | } |
| 233 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 234 | static void davinci_mcasp_stop(struct davinci_mcasp *mcasp, int stream) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 235 | { |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 236 | u32 reg; |
| 237 | |
Peter Ujfalusi | 4dcb5a0 | 2013-11-14 11:35:33 +0200 | [diff] [blame^] | 238 | mcasp->streams--; |
| 239 | |
Chaithrika U S | 539d3d8 | 2009-09-23 10:12:08 -0400 | [diff] [blame] | 240 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 241 | if (mcasp->txnumevt) { /* disable FIFO */ |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 242 | reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; |
| 243 | mcasp_clr_bits(mcasp->base + reg, FIFO_ENABLE); |
Hebbar, Gururaja | e5ec69d | 2012-09-03 13:40:40 +0530 | [diff] [blame] | 244 | } |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 245 | mcasp_stop_tx(mcasp); |
Chaithrika U S | 539d3d8 | 2009-09-23 10:12:08 -0400 | [diff] [blame] | 246 | } else { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 247 | if (mcasp->rxnumevt) { /* disable FIFO */ |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 248 | reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; |
| 249 | mcasp_clr_bits(mcasp->base + reg, FIFO_ENABLE); |
Hebbar, Gururaja | e5ec69d | 2012-09-03 13:40:40 +0530 | [diff] [blame] | 250 | } |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 251 | mcasp_stop_rx(mcasp); |
Chaithrika U S | 539d3d8 | 2009-09-23 10:12:08 -0400 | [diff] [blame] | 252 | } |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai, |
| 256 | unsigned int fmt) |
| 257 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 258 | struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(cpu_dai); |
| 259 | void __iomem *base = mcasp->base; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 260 | |
Daniel Mack | 5296cf2 | 2012-10-04 15:08:42 +0200 | [diff] [blame] | 261 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| 262 | case SND_SOC_DAIFMT_DSP_B: |
| 263 | case SND_SOC_DAIFMT_AC97: |
Peter Ujfalusi | 8f113b7 | 2013-11-14 11:35:30 +0200 | [diff] [blame] | 264 | mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXDUR); |
| 265 | mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRDUR); |
Daniel Mack | 5296cf2 | 2012-10-04 15:08:42 +0200 | [diff] [blame] | 266 | break; |
| 267 | default: |
| 268 | /* configure a full-word SYNC pulse (LRCLK) */ |
Peter Ujfalusi | 8f113b7 | 2013-11-14 11:35:30 +0200 | [diff] [blame] | 269 | mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXDUR); |
| 270 | mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRDUR); |
Daniel Mack | 5296cf2 | 2012-10-04 15:08:42 +0200 | [diff] [blame] | 271 | |
| 272 | /* make 1st data bit occur one ACLK cycle after the frame sync */ |
Peter Ujfalusi | 8f113b7 | 2013-11-14 11:35:30 +0200 | [diff] [blame] | 273 | mcasp_set_bits(base + DAVINCI_MCASP_TXFMT_REG, FSXDLY(1)); |
| 274 | mcasp_set_bits(base + DAVINCI_MCASP_RXFMT_REG, FSRDLY(1)); |
Daniel Mack | 5296cf2 | 2012-10-04 15:08:42 +0200 | [diff] [blame] | 275 | break; |
| 276 | } |
| 277 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 278 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 279 | case SND_SOC_DAIFMT_CBS_CFS: |
| 280 | /* codec is clock and frame slave */ |
| 281 | mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE); |
| 282 | mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, AFSXE); |
| 283 | |
| 284 | mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); |
| 285 | mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE); |
| 286 | |
Marek Belisko | 81ee683 | 2013-04-26 14:38:11 +0200 | [diff] [blame] | 287 | mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, |
| 288 | ACLKX | ACLKR); |
| 289 | mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, |
| 290 | AFSX | AFSR); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 291 | break; |
Chaithrika U S | 517ee6c | 2009-08-11 16:59:12 -0400 | [diff] [blame] | 292 | case SND_SOC_DAIFMT_CBM_CFS: |
| 293 | /* codec is clock master and frame slave */ |
Ben Gardiner | a90f549 | 2011-04-21 14:19:03 -0400 | [diff] [blame] | 294 | mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE); |
Chaithrika U S | 517ee6c | 2009-08-11 16:59:12 -0400 | [diff] [blame] | 295 | mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, AFSXE); |
| 296 | |
Ben Gardiner | a90f549 | 2011-04-21 14:19:03 -0400 | [diff] [blame] | 297 | mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); |
Chaithrika U S | 517ee6c | 2009-08-11 16:59:12 -0400 | [diff] [blame] | 298 | mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE); |
| 299 | |
Ben Gardiner | db92f43 | 2011-04-21 14:19:04 -0400 | [diff] [blame] | 300 | mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, |
| 301 | ACLKX | ACLKR); |
Ben Gardiner | 9595c8f | 2011-04-21 14:19:02 -0400 | [diff] [blame] | 302 | mcasp_set_bits(base + DAVINCI_MCASP_PDIR_REG, |
Ben Gardiner | db92f43 | 2011-04-21 14:19:04 -0400 | [diff] [blame] | 303 | AFSX | AFSR); |
Chaithrika U S | 517ee6c | 2009-08-11 16:59:12 -0400 | [diff] [blame] | 304 | break; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 305 | case SND_SOC_DAIFMT_CBM_CFM: |
| 306 | /* codec is clock and frame master */ |
| 307 | mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXE); |
| 308 | mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, AFSXE); |
| 309 | |
| 310 | mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRE); |
| 311 | mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, AFSRE); |
| 312 | |
Ben Gardiner | 9595c8f | 2011-04-21 14:19:02 -0400 | [diff] [blame] | 313 | mcasp_clr_bits(base + DAVINCI_MCASP_PDIR_REG, |
| 314 | ACLKX | AHCLKX | AFSX | ACLKR | AHCLKR | AFSR); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 315 | break; |
| 316 | |
| 317 | default: |
| 318 | return -EINVAL; |
| 319 | } |
| 320 | |
| 321 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
| 322 | case SND_SOC_DAIFMT_IB_NF: |
| 323 | mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL); |
| 324 | mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL); |
| 325 | |
| 326 | mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL); |
| 327 | mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL); |
| 328 | break; |
| 329 | |
| 330 | case SND_SOC_DAIFMT_NB_IF: |
| 331 | mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL); |
| 332 | mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL); |
| 333 | |
| 334 | mcasp_clr_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL); |
| 335 | mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL); |
| 336 | break; |
| 337 | |
| 338 | case SND_SOC_DAIFMT_IB_IF: |
| 339 | mcasp_clr_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL); |
| 340 | mcasp_set_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL); |
| 341 | |
| 342 | mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL); |
| 343 | mcasp_set_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL); |
| 344 | break; |
| 345 | |
| 346 | case SND_SOC_DAIFMT_NB_NF: |
| 347 | mcasp_set_bits(base + DAVINCI_MCASP_ACLKXCTL_REG, ACLKXPOL); |
| 348 | mcasp_clr_bits(base + DAVINCI_MCASP_TXFMCTL_REG, FSXPOL); |
| 349 | |
Marek Belisko | df4a4ee | 2013-05-03 07:37:36 +0200 | [diff] [blame] | 350 | mcasp_set_bits(base + DAVINCI_MCASP_ACLKRCTL_REG, ACLKRPOL); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 351 | mcasp_clr_bits(base + DAVINCI_MCASP_RXFMCTL_REG, FSRPOL); |
| 352 | break; |
| 353 | |
| 354 | default: |
| 355 | return -EINVAL; |
| 356 | } |
| 357 | |
| 358 | return 0; |
| 359 | } |
| 360 | |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 361 | static int davinci_mcasp_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div) |
| 362 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 363 | struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai); |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 364 | |
| 365 | switch (div_id) { |
| 366 | case 0: /* MCLK divider */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 367 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_AHCLKXCTL_REG, |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 368 | AHCLKXDIV(div - 1), AHCLKXDIV_MASK); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 369 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_AHCLKRCTL_REG, |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 370 | AHCLKRDIV(div - 1), AHCLKRDIV_MASK); |
| 371 | break; |
| 372 | |
| 373 | case 1: /* BCLK divider */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 374 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_ACLKXCTL_REG, |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 375 | ACLKXDIV(div - 1), ACLKXDIV_MASK); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 376 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_ACLKRCTL_REG, |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 377 | ACLKRDIV(div - 1), ACLKRDIV_MASK); |
| 378 | break; |
| 379 | |
Daniel Mack | 1b3bc06 | 2012-12-05 18:20:38 +0100 | [diff] [blame] | 380 | case 2: /* BCLK/LRCLK ratio */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 381 | mcasp->bclk_lrclk_ratio = div; |
Daniel Mack | 1b3bc06 | 2012-12-05 18:20:38 +0100 | [diff] [blame] | 382 | break; |
| 383 | |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 384 | default: |
| 385 | return -EINVAL; |
| 386 | } |
| 387 | |
| 388 | return 0; |
| 389 | } |
| 390 | |
Daniel Mack | 5b66aa2 | 2012-10-04 15:08:41 +0200 | [diff] [blame] | 391 | static int davinci_mcasp_set_sysclk(struct snd_soc_dai *dai, int clk_id, |
| 392 | unsigned int freq, int dir) |
| 393 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 394 | struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai); |
Daniel Mack | 5b66aa2 | 2012-10-04 15:08:41 +0200 | [diff] [blame] | 395 | |
| 396 | if (dir == SND_SOC_CLOCK_OUT) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 397 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_AHCLKXCTL_REG, AHCLKXE); |
| 398 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_AHCLKRCTL_REG, AHCLKRE); |
| 399 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_PDIR_REG, AHCLKX); |
Daniel Mack | 5b66aa2 | 2012-10-04 15:08:41 +0200 | [diff] [blame] | 400 | } else { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 401 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_AHCLKXCTL_REG, AHCLKXE); |
| 402 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_AHCLKRCTL_REG, AHCLKRE); |
| 403 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_PDIR_REG, AHCLKX); |
Daniel Mack | 5b66aa2 | 2012-10-04 15:08:41 +0200 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | return 0; |
| 407 | } |
| 408 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 409 | static int davinci_config_channel_size(struct davinci_mcasp *mcasp, |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 410 | int word_length) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 411 | { |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 412 | u32 fmt; |
Daniel Mack | 7967189 | 2013-05-16 15:25:01 +0200 | [diff] [blame] | 413 | u32 tx_rotate = (word_length / 4) & 0x7; |
| 414 | u32 rx_rotate = (32 - word_length) / 4; |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 415 | u32 mask = (1ULL << word_length) - 1; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 416 | |
Daniel Mack | 1b3bc06 | 2012-12-05 18:20:38 +0100 | [diff] [blame] | 417 | /* |
| 418 | * if s BCLK-to-LRCLK ratio has been configured via the set_clkdiv() |
| 419 | * callback, take it into account here. That allows us to for example |
| 420 | * send 32 bits per channel to the codec, while only 16 of them carry |
| 421 | * audio payload. |
Michal Bachraty | d486fea | 2013-04-19 15:28:44 +0200 | [diff] [blame] | 422 | * The clock ratio is given for a full period of data (for I2S format |
| 423 | * both left and right channels), so it has to be divided by number of |
| 424 | * tdm-slots (for I2S - divided by 2). |
Daniel Mack | 1b3bc06 | 2012-12-05 18:20:38 +0100 | [diff] [blame] | 425 | */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 426 | if (mcasp->bclk_lrclk_ratio) |
| 427 | word_length = mcasp->bclk_lrclk_ratio / mcasp->tdm_slots; |
Daniel Mack | 1b3bc06 | 2012-12-05 18:20:38 +0100 | [diff] [blame] | 428 | |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 429 | /* mapping of the XSSZ bit-field as described in the datasheet */ |
| 430 | fmt = (word_length >> 1) - 1; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 431 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 432 | if (mcasp->op_mode != DAVINCI_MCASP_DIT_MODE) { |
| 433 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_RXFMT_REG, |
Yegor Yefremov | f5023af | 2013-04-04 16:13:20 +0200 | [diff] [blame] | 434 | RXSSZ(fmt), RXSSZ(0x0F)); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 435 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_TXFMT_REG, |
Yegor Yefremov | f5023af | 2013-04-04 16:13:20 +0200 | [diff] [blame] | 436 | TXSSZ(fmt), TXSSZ(0x0F)); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 437 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_TXFMT_REG, |
Daniel Mack | 7967189 | 2013-05-16 15:25:01 +0200 | [diff] [blame] | 438 | TXROT(tx_rotate), TXROT(7)); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 439 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_RXFMT_REG, |
Daniel Mack | 7967189 | 2013-05-16 15:25:01 +0200 | [diff] [blame] | 440 | RXROT(rx_rotate), RXROT(7)); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 441 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_RXMASK_REG, |
Yegor Yefremov | f5023af | 2013-04-04 16:13:20 +0200 | [diff] [blame] | 442 | mask); |
| 443 | } |
| 444 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 445 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXMASK_REG, mask); |
Chaithrika U S | 0c31cf3 | 2009-09-15 18:13:29 -0400 | [diff] [blame] | 446 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 447 | return 0; |
| 448 | } |
| 449 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 450 | static int davinci_hw_common_param(struct davinci_mcasp *mcasp, int stream, |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 451 | int channels) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 452 | { |
| 453 | int i; |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 454 | u8 tx_ser = 0; |
| 455 | u8 rx_ser = 0; |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 456 | u8 ser; |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 457 | u8 slots = mcasp->tdm_slots; |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 458 | u8 max_active_serializers = (channels + slots - 1) / slots; |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 459 | u32 reg; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 460 | /* Default configuration */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 461 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_PWREMUMGT_REG, MCASP_SOFT); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 462 | |
| 463 | /* All PINS as McASP */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 464 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_PFUNC_REG, 0x00000000); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 465 | |
| 466 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 467 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXSTAT_REG, 0xFFFFFFFF); |
| 468 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_XEVTCTL_REG, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 469 | TXDATADMADIS); |
| 470 | } else { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 471 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_RXSTAT_REG, 0xFFFFFFFF); |
| 472 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_REVTCTL_REG, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 473 | RXDATADMADIS); |
| 474 | } |
| 475 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 476 | for (i = 0; i < mcasp->num_serializer; i++) { |
| 477 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_XRSRCTL_REG(i), |
| 478 | mcasp->serial_dir[i]); |
| 479 | if (mcasp->serial_dir[i] == TX_MODE && |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 480 | tx_ser < max_active_serializers) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 481 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_PDIR_REG, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 482 | AXR(i)); |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 483 | tx_ser++; |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 484 | } else if (mcasp->serial_dir[i] == RX_MODE && |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 485 | rx_ser < max_active_serializers) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 486 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_PDIR_REG, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 487 | AXR(i)); |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 488 | rx_ser++; |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 489 | } else { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 490 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_XRSRCTL_REG(i), |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 491 | SRMOD_INACTIVE, SRMOD_MASK); |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 492 | } |
| 493 | } |
| 494 | |
Daniel Mack | ecf327c | 2013-03-08 14:19:38 +0100 | [diff] [blame] | 495 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) |
| 496 | ser = tx_ser; |
| 497 | else |
| 498 | ser = rx_ser; |
| 499 | |
| 500 | if (ser < max_active_serializers) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 501 | dev_warn(mcasp->dev, "stream has more channels (%d) than are " |
Daniel Mack | ecf327c | 2013-03-08 14:19:38 +0100 | [diff] [blame] | 502 | "enabled in mcasp (%d)\n", channels, ser * slots); |
| 503 | return -EINVAL; |
| 504 | } |
| 505 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 506 | if (mcasp->txnumevt && stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| 507 | if (mcasp->txnumevt * tx_ser > 64) |
| 508 | mcasp->txnumevt = 1; |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 509 | |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 510 | reg = mcasp->fifo_base + MCASP_WFIFOCTL_OFFSET; |
| 511 | mcasp_mod_bits(mcasp->base + reg, tx_ser, NUMDMA_MASK); |
| 512 | mcasp_mod_bits(mcasp->base + reg, |
| 513 | ((mcasp->txnumevt * tx_ser) << 8), NUMEVT_MASK); |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 514 | } |
| 515 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 516 | if (mcasp->rxnumevt && stream == SNDRV_PCM_STREAM_CAPTURE) { |
| 517 | if (mcasp->rxnumevt * rx_ser > 64) |
| 518 | mcasp->rxnumevt = 1; |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 519 | |
| 520 | reg = mcasp->fifo_base + MCASP_RFIFOCTL_OFFSET; |
| 521 | mcasp_mod_bits(mcasp->base + reg, rx_ser, NUMDMA_MASK); |
| 522 | mcasp_mod_bits(mcasp->base + reg, |
| 523 | ((mcasp->rxnumevt * rx_ser) << 8), NUMEVT_MASK); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 524 | } |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 525 | |
| 526 | return 0; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 527 | } |
| 528 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 529 | static void davinci_hw_param(struct davinci_mcasp *mcasp, int stream) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 530 | { |
| 531 | int i, active_slots; |
| 532 | u32 mask = 0; |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 533 | u32 busel = 0; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 534 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 535 | active_slots = (mcasp->tdm_slots > 31) ? 32 : mcasp->tdm_slots; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 536 | for (i = 0; i < active_slots; i++) |
| 537 | mask |= (1 << i); |
| 538 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 539 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_ACLKXCTL_REG, TX_ASYNC); |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 540 | |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 541 | if (!mcasp->dat_port) |
| 542 | busel = TXSEL; |
| 543 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 544 | if (stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| 545 | /* bit stream is MSB first with no delay */ |
| 546 | /* DSP_B mode */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 547 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXTDM_REG, mask); |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 548 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_TXFMT_REG, |
| 549 | busel | TXORD); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 550 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 551 | if ((mcasp->tdm_slots >= 2) && (mcasp->tdm_slots <= 32)) |
| 552 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_TXFMCTL_REG, |
| 553 | FSXMOD(mcasp->tdm_slots), FSXMOD(0x1FF)); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 554 | else |
| 555 | printk(KERN_ERR "playback tdm slot %d not supported\n", |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 556 | mcasp->tdm_slots); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 557 | } else { |
| 558 | /* bit stream is MSB first with no delay */ |
| 559 | /* DSP_B mode */ |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 560 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_RXFMT_REG, |
| 561 | busel | RXORD); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 562 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_RXTDM_REG, mask); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 563 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 564 | if ((mcasp->tdm_slots >= 2) && (mcasp->tdm_slots <= 32)) |
| 565 | mcasp_mod_bits(mcasp->base + DAVINCI_MCASP_RXFMCTL_REG, |
| 566 | FSRMOD(mcasp->tdm_slots), FSRMOD(0x1FF)); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 567 | else |
| 568 | printk(KERN_ERR "capture tdm slot %d not supported\n", |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 569 | mcasp->tdm_slots); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 570 | } |
| 571 | } |
| 572 | |
| 573 | /* S/PDIF */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 574 | static void davinci_hw_dit_param(struct davinci_mcasp *mcasp) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 575 | { |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 576 | /* Set the TX format : 24 bit right rotation, 32 bit slot, Pad 0 |
| 577 | and LSB first */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 578 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_TXFMT_REG, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 579 | TXROT(6) | TXSSZ(15)); |
| 580 | |
| 581 | /* Set TX frame synch : DIT Mode, 1 bit width, internal, rising edge */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 582 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXFMCTL_REG, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 583 | AFSXE | FSXMOD(0x180)); |
| 584 | |
| 585 | /* Set the TX tdm : for all the slots */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 586 | mcasp_set_reg(mcasp->base + DAVINCI_MCASP_TXTDM_REG, 0xFFFFFFFF); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 587 | |
| 588 | /* Set the TX clock controls : div = 1 and internal */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 589 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_ACLKXCTL_REG, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 590 | ACLKXE | TX_ASYNC); |
| 591 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 592 | mcasp_clr_bits(mcasp->base + DAVINCI_MCASP_XEVTCTL_REG, TXDATADMADIS); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 593 | |
| 594 | /* Only 44100 and 48000 are valid, both have the same setting */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 595 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_AHCLKXCTL_REG, AHCLKXDIV(3)); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 596 | |
| 597 | /* Enable the DIT */ |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 598 | mcasp_set_bits(mcasp->base + DAVINCI_MCASP_TXDITCTL_REG, DITEN); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 599 | } |
| 600 | |
| 601 | static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream, |
| 602 | struct snd_pcm_hw_params *params, |
| 603 | struct snd_soc_dai *cpu_dai) |
| 604 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 605 | struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(cpu_dai); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 606 | struct davinci_pcm_dma_params *dma_params = |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 607 | &mcasp->dma_params[substream->stream]; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 608 | int word_length; |
Chaithrika U S | 4fa9c1a | 2009-09-30 17:32:27 -0400 | [diff] [blame] | 609 | u8 fifo_level; |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 610 | u8 slots = mcasp->tdm_slots; |
Michal Bachraty | 7c21a78 | 2013-04-19 15:28:03 +0200 | [diff] [blame] | 611 | u8 active_serializers; |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 612 | int channels; |
| 613 | struct snd_interval *pcm_channels = hw_param_interval(params, |
| 614 | SNDRV_PCM_HW_PARAM_CHANNELS); |
| 615 | channels = pcm_channels->min; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 616 | |
Michal Bachraty | 7c21a78 | 2013-04-19 15:28:03 +0200 | [diff] [blame] | 617 | active_serializers = (channels + slots - 1) / slots; |
| 618 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 619 | if (davinci_hw_common_param(mcasp, substream->stream, channels) == -EINVAL) |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 620 | return -EINVAL; |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 621 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 622 | fifo_level = mcasp->txnumevt * active_serializers; |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 623 | else |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 624 | fifo_level = mcasp->rxnumevt * active_serializers; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 625 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 626 | if (mcasp->op_mode == DAVINCI_MCASP_DIT_MODE) |
| 627 | davinci_hw_dit_param(mcasp); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 628 | else |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 629 | davinci_hw_param(mcasp, substream->stream); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 630 | |
| 631 | switch (params_format(params)) { |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 632 | case SNDRV_PCM_FORMAT_U8: |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 633 | case SNDRV_PCM_FORMAT_S8: |
| 634 | dma_params->data_type = 1; |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 635 | word_length = 8; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 636 | break; |
| 637 | |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 638 | case SNDRV_PCM_FORMAT_U16_LE: |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 639 | case SNDRV_PCM_FORMAT_S16_LE: |
| 640 | dma_params->data_type = 2; |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 641 | word_length = 16; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 642 | break; |
| 643 | |
Daniel Mack | 21eb24d | 2012-10-09 09:35:16 +0200 | [diff] [blame] | 644 | case SNDRV_PCM_FORMAT_U24_3LE: |
| 645 | case SNDRV_PCM_FORMAT_S24_3LE: |
Daniel Mack | 21eb24d | 2012-10-09 09:35:16 +0200 | [diff] [blame] | 646 | dma_params->data_type = 3; |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 647 | word_length = 24; |
Daniel Mack | 21eb24d | 2012-10-09 09:35:16 +0200 | [diff] [blame] | 648 | break; |
| 649 | |
Daniel Mack | 6b7fa01 | 2012-10-09 11:56:40 +0200 | [diff] [blame] | 650 | case SNDRV_PCM_FORMAT_U24_LE: |
| 651 | case SNDRV_PCM_FORMAT_S24_LE: |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 652 | case SNDRV_PCM_FORMAT_U32_LE: |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 653 | case SNDRV_PCM_FORMAT_S32_LE: |
| 654 | dma_params->data_type = 4; |
Daniel Mack | ba764b3 | 2012-12-05 18:20:37 +0100 | [diff] [blame] | 655 | word_length = 32; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 656 | break; |
| 657 | |
| 658 | default: |
| 659 | printk(KERN_WARNING "davinci-mcasp: unsupported PCM format"); |
| 660 | return -EINVAL; |
| 661 | } |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 662 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 663 | if (mcasp->version == MCASP_VERSION_2 && !fifo_level) |
Chaithrika U S | 4fa9c1a | 2009-09-30 17:32:27 -0400 | [diff] [blame] | 664 | dma_params->acnt = 4; |
| 665 | else |
Chaithrika U S | 6a99fb5 | 2009-08-11 16:58:52 -0400 | [diff] [blame] | 666 | dma_params->acnt = dma_params->data_type; |
| 667 | |
Chaithrika U S | 4fa9c1a | 2009-09-30 17:32:27 -0400 | [diff] [blame] | 668 | dma_params->fifo_level = fifo_level; |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 669 | davinci_config_channel_size(mcasp, word_length); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 670 | |
| 671 | return 0; |
| 672 | } |
| 673 | |
| 674 | static int davinci_mcasp_trigger(struct snd_pcm_substream *substream, |
| 675 | int cmd, struct snd_soc_dai *cpu_dai) |
| 676 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 677 | struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(cpu_dai); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 678 | int ret = 0; |
| 679 | |
| 680 | switch (cmd) { |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 681 | case SNDRV_PCM_TRIGGER_RESUME: |
Chaithrika U S | e473b84 | 2010-01-20 17:06:33 +0530 | [diff] [blame] | 682 | case SNDRV_PCM_TRIGGER_START: |
| 683 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 684 | ret = pm_runtime_get_sync(mcasp->dev); |
Hebbar, Gururaja | 1088434 | 2012-08-08 20:40:32 +0530 | [diff] [blame] | 685 | if (IS_ERR_VALUE(ret)) |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 686 | dev_err(mcasp->dev, "pm_runtime_get_sync() failed\n"); |
| 687 | davinci_mcasp_start(mcasp, substream->stream); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 688 | break; |
| 689 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 690 | case SNDRV_PCM_TRIGGER_SUSPEND: |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 691 | davinci_mcasp_stop(mcasp, substream->stream); |
| 692 | ret = pm_runtime_put_sync(mcasp->dev); |
Hebbar, Gururaja | 1088434 | 2012-08-08 20:40:32 +0530 | [diff] [blame] | 693 | if (IS_ERR_VALUE(ret)) |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 694 | dev_err(mcasp->dev, "pm_runtime_put_sync() failed\n"); |
Chaithrika U S | a47979b | 2009-12-03 18:56:56 +0530 | [diff] [blame] | 695 | break; |
| 696 | |
| 697 | case SNDRV_PCM_TRIGGER_STOP: |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 698 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 699 | davinci_mcasp_stop(mcasp, substream->stream); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 700 | break; |
| 701 | |
| 702 | default: |
| 703 | ret = -EINVAL; |
| 704 | } |
| 705 | |
| 706 | return ret; |
| 707 | } |
| 708 | |
Chris Paulson-Ellis | bedad0c | 2010-11-16 12:27:09 +0000 | [diff] [blame] | 709 | static int davinci_mcasp_startup(struct snd_pcm_substream *substream, |
| 710 | struct snd_soc_dai *dai) |
| 711 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 712 | struct davinci_mcasp *mcasp = snd_soc_dai_get_drvdata(dai); |
Chris Paulson-Ellis | bedad0c | 2010-11-16 12:27:09 +0000 | [diff] [blame] | 713 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 714 | snd_soc_dai_set_dma_data(dai, substream, mcasp->dma_params); |
Chris Paulson-Ellis | bedad0c | 2010-11-16 12:27:09 +0000 | [diff] [blame] | 715 | return 0; |
| 716 | } |
| 717 | |
Lars-Peter Clausen | 85e7652 | 2011-11-23 11:40:40 +0100 | [diff] [blame] | 718 | static const struct snd_soc_dai_ops davinci_mcasp_dai_ops = { |
Chris Paulson-Ellis | bedad0c | 2010-11-16 12:27:09 +0000 | [diff] [blame] | 719 | .startup = davinci_mcasp_startup, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 720 | .trigger = davinci_mcasp_trigger, |
| 721 | .hw_params = davinci_mcasp_hw_params, |
| 722 | .set_fmt = davinci_mcasp_set_dai_fmt, |
Daniel Mack | 4ed8c9b | 2012-10-04 15:08:39 +0200 | [diff] [blame] | 723 | .set_clkdiv = davinci_mcasp_set_clkdiv, |
Daniel Mack | 5b66aa2 | 2012-10-04 15:08:41 +0200 | [diff] [blame] | 724 | .set_sysclk = davinci_mcasp_set_sysclk, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 725 | }; |
| 726 | |
Peter Ujfalusi | ed29cd5 | 2013-11-14 11:35:22 +0200 | [diff] [blame] | 727 | #define DAVINCI_MCASP_RATES SNDRV_PCM_RATE_8000_192000 |
| 728 | |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 729 | #define DAVINCI_MCASP_PCM_FMTS (SNDRV_PCM_FMTBIT_S8 | \ |
| 730 | SNDRV_PCM_FMTBIT_U8 | \ |
| 731 | SNDRV_PCM_FMTBIT_S16_LE | \ |
| 732 | SNDRV_PCM_FMTBIT_U16_LE | \ |
Daniel Mack | 21eb24d | 2012-10-09 09:35:16 +0200 | [diff] [blame] | 733 | SNDRV_PCM_FMTBIT_S24_LE | \ |
| 734 | SNDRV_PCM_FMTBIT_U24_LE | \ |
| 735 | SNDRV_PCM_FMTBIT_S24_3LE | \ |
| 736 | SNDRV_PCM_FMTBIT_U24_3LE | \ |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 737 | SNDRV_PCM_FMTBIT_S32_LE | \ |
| 738 | SNDRV_PCM_FMTBIT_U32_LE) |
| 739 | |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 740 | static struct snd_soc_dai_driver davinci_mcasp_dai[] = { |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 741 | { |
Liam Girdwood | f0fba2a | 2010-03-17 20:15:21 +0000 | [diff] [blame] | 742 | .name = "davinci-mcasp.0", |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 743 | .playback = { |
| 744 | .channels_min = 2, |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 745 | .channels_max = 32 * 16, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 746 | .rates = DAVINCI_MCASP_RATES, |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 747 | .formats = DAVINCI_MCASP_PCM_FMTS, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 748 | }, |
| 749 | .capture = { |
| 750 | .channels_min = 2, |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 751 | .channels_max = 32 * 16, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 752 | .rates = DAVINCI_MCASP_RATES, |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 753 | .formats = DAVINCI_MCASP_PCM_FMTS, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 754 | }, |
| 755 | .ops = &davinci_mcasp_dai_ops, |
| 756 | |
| 757 | }, |
| 758 | { |
Peter Ujfalusi | 58e48d9 | 2013-11-14 11:35:24 +0200 | [diff] [blame] | 759 | .name = "davinci-mcasp.1", |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 760 | .playback = { |
| 761 | .channels_min = 1, |
| 762 | .channels_max = 384, |
| 763 | .rates = DAVINCI_MCASP_RATES, |
Ben Gardiner | 0a9d138 | 2011-08-26 12:02:44 -0400 | [diff] [blame] | 764 | .formats = DAVINCI_MCASP_PCM_FMTS, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 765 | }, |
| 766 | .ops = &davinci_mcasp_dai_ops, |
| 767 | }, |
| 768 | |
| 769 | }; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 770 | |
Kuninori Morimoto | eeef0ed | 2013-03-21 03:31:19 -0700 | [diff] [blame] | 771 | static const struct snd_soc_component_driver davinci_mcasp_component = { |
| 772 | .name = "davinci-mcasp", |
| 773 | }; |
| 774 | |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 775 | /* Some HW specific values and defaults. The rest is filled in from DT. */ |
| 776 | static struct snd_platform_data dm646x_mcasp_pdata = { |
| 777 | .tx_dma_offset = 0x400, |
| 778 | .rx_dma_offset = 0x400, |
| 779 | .asp_chan_q = EVENTQ_0, |
| 780 | .version = MCASP_VERSION_1, |
| 781 | }; |
| 782 | |
| 783 | static struct snd_platform_data da830_mcasp_pdata = { |
| 784 | .tx_dma_offset = 0x2000, |
| 785 | .rx_dma_offset = 0x2000, |
| 786 | .asp_chan_q = EVENTQ_0, |
| 787 | .version = MCASP_VERSION_2, |
| 788 | }; |
| 789 | |
| 790 | static struct snd_platform_data omap2_mcasp_pdata = { |
| 791 | .tx_dma_offset = 0, |
| 792 | .rx_dma_offset = 0, |
| 793 | .asp_chan_q = EVENTQ_0, |
| 794 | .version = MCASP_VERSION_3, |
| 795 | }; |
| 796 | |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 797 | static const struct of_device_id mcasp_dt_ids[] = { |
| 798 | { |
| 799 | .compatible = "ti,dm646x-mcasp-audio", |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 800 | .data = &dm646x_mcasp_pdata, |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 801 | }, |
| 802 | { |
| 803 | .compatible = "ti,da830-mcasp-audio", |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 804 | .data = &da830_mcasp_pdata, |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 805 | }, |
Hebbar, Gururaja | e5ec69d | 2012-09-03 13:40:40 +0530 | [diff] [blame] | 806 | { |
Jyri Sarha | 3af9e03 | 2013-10-18 18:37:44 +0300 | [diff] [blame] | 807 | .compatible = "ti,am33xx-mcasp-audio", |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 808 | .data = &omap2_mcasp_pdata, |
Hebbar, Gururaja | e5ec69d | 2012-09-03 13:40:40 +0530 | [diff] [blame] | 809 | }, |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 810 | { /* sentinel */ } |
| 811 | }; |
| 812 | MODULE_DEVICE_TABLE(of, mcasp_dt_ids); |
| 813 | |
| 814 | static struct snd_platform_data *davinci_mcasp_set_pdata_from_of( |
| 815 | struct platform_device *pdev) |
| 816 | { |
| 817 | struct device_node *np = pdev->dev.of_node; |
| 818 | struct snd_platform_data *pdata = NULL; |
| 819 | const struct of_device_id *match = |
Sachin Kamat | ea421eb | 2013-05-22 16:53:37 +0530 | [diff] [blame] | 820 | of_match_device(mcasp_dt_ids, &pdev->dev); |
Jyri Sarha | 4023fe6 | 2013-10-18 18:37:43 +0300 | [diff] [blame] | 821 | struct of_phandle_args dma_spec; |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 822 | |
| 823 | const u32 *of_serial_dir32; |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 824 | u32 val; |
| 825 | int i, ret = 0; |
| 826 | |
| 827 | if (pdev->dev.platform_data) { |
| 828 | pdata = pdev->dev.platform_data; |
| 829 | return pdata; |
| 830 | } else if (match) { |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 831 | pdata = (struct snd_platform_data *) match->data; |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 832 | } else { |
| 833 | /* control shouldn't reach here. something is wrong */ |
| 834 | ret = -EINVAL; |
| 835 | goto nodata; |
| 836 | } |
| 837 | |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 838 | ret = of_property_read_u32(np, "op-mode", &val); |
| 839 | if (ret >= 0) |
| 840 | pdata->op_mode = val; |
| 841 | |
| 842 | ret = of_property_read_u32(np, "tdm-slots", &val); |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 843 | if (ret >= 0) { |
| 844 | if (val < 2 || val > 32) { |
| 845 | dev_err(&pdev->dev, |
| 846 | "tdm-slots must be in rage [2-32]\n"); |
| 847 | ret = -EINVAL; |
| 848 | goto nodata; |
| 849 | } |
| 850 | |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 851 | pdata->tdm_slots = val; |
Michal Bachraty | 2952b27 | 2013-02-28 16:07:08 +0100 | [diff] [blame] | 852 | } |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 853 | |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 854 | of_serial_dir32 = of_get_property(np, "serial-dir", &val); |
| 855 | val /= sizeof(u32); |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 856 | if (of_serial_dir32) { |
Peter Ujfalusi | 1427e66 | 2013-10-18 18:37:46 +0300 | [diff] [blame] | 857 | u8 *of_serial_dir = devm_kzalloc(&pdev->dev, |
| 858 | (sizeof(*of_serial_dir) * val), |
| 859 | GFP_KERNEL); |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 860 | if (!of_serial_dir) { |
| 861 | ret = -ENOMEM; |
| 862 | goto nodata; |
| 863 | } |
| 864 | |
Peter Ujfalusi | 1427e66 | 2013-10-18 18:37:46 +0300 | [diff] [blame] | 865 | for (i = 0; i < val; i++) |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 866 | of_serial_dir[i] = be32_to_cpup(&of_serial_dir32[i]); |
| 867 | |
Peter Ujfalusi | 1427e66 | 2013-10-18 18:37:46 +0300 | [diff] [blame] | 868 | pdata->num_serializer = val; |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 869 | pdata->serial_dir = of_serial_dir; |
| 870 | } |
| 871 | |
Jyri Sarha | 4023fe6 | 2013-10-18 18:37:43 +0300 | [diff] [blame] | 872 | ret = of_property_match_string(np, "dma-names", "tx"); |
| 873 | if (ret < 0) |
| 874 | goto nodata; |
| 875 | |
| 876 | ret = of_parse_phandle_with_args(np, "dmas", "#dma-cells", ret, |
| 877 | &dma_spec); |
| 878 | if (ret < 0) |
| 879 | goto nodata; |
| 880 | |
| 881 | pdata->tx_dma_channel = dma_spec.args[0]; |
| 882 | |
| 883 | ret = of_property_match_string(np, "dma-names", "rx"); |
| 884 | if (ret < 0) |
| 885 | goto nodata; |
| 886 | |
| 887 | ret = of_parse_phandle_with_args(np, "dmas", "#dma-cells", ret, |
| 888 | &dma_spec); |
| 889 | if (ret < 0) |
| 890 | goto nodata; |
| 891 | |
| 892 | pdata->rx_dma_channel = dma_spec.args[0]; |
| 893 | |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 894 | ret = of_property_read_u32(np, "tx-num-evt", &val); |
| 895 | if (ret >= 0) |
| 896 | pdata->txnumevt = val; |
| 897 | |
| 898 | ret = of_property_read_u32(np, "rx-num-evt", &val); |
| 899 | if (ret >= 0) |
| 900 | pdata->rxnumevt = val; |
| 901 | |
| 902 | ret = of_property_read_u32(np, "sram-size-playback", &val); |
| 903 | if (ret >= 0) |
| 904 | pdata->sram_size_playback = val; |
| 905 | |
| 906 | ret = of_property_read_u32(np, "sram-size-capture", &val); |
| 907 | if (ret >= 0) |
| 908 | pdata->sram_size_capture = val; |
| 909 | |
| 910 | return pdata; |
| 911 | |
| 912 | nodata: |
| 913 | if (ret < 0) { |
| 914 | dev_err(&pdev->dev, "Error populating platform data, err %d\n", |
| 915 | ret); |
| 916 | pdata = NULL; |
| 917 | } |
| 918 | return pdata; |
| 919 | } |
| 920 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 921 | static int davinci_mcasp_probe(struct platform_device *pdev) |
| 922 | { |
| 923 | struct davinci_pcm_dma_params *dma_data; |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 924 | struct resource *mem, *ioarea, *res, *dat; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 925 | struct snd_platform_data *pdata; |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 926 | struct davinci_mcasp *mcasp; |
Julia Lawall | 96d31e2 | 2011-12-29 17:51:21 +0100 | [diff] [blame] | 927 | int ret; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 928 | |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 929 | if (!pdev->dev.platform_data && !pdev->dev.of_node) { |
| 930 | dev_err(&pdev->dev, "No platform data supplied\n"); |
| 931 | return -EINVAL; |
| 932 | } |
| 933 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 934 | mcasp = devm_kzalloc(&pdev->dev, sizeof(struct davinci_mcasp), |
Julia Lawall | 96d31e2 | 2011-12-29 17:51:21 +0100 | [diff] [blame] | 935 | GFP_KERNEL); |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 936 | if (!mcasp) |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 937 | return -ENOMEM; |
| 938 | |
Hebbar, Gururaja | 3e3b8c3 | 2012-08-27 18:56:42 +0530 | [diff] [blame] | 939 | pdata = davinci_mcasp_set_pdata_from_of(pdev); |
| 940 | if (!pdata) { |
| 941 | dev_err(&pdev->dev, "no platform data\n"); |
| 942 | return -EINVAL; |
| 943 | } |
| 944 | |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 945 | mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu"); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 946 | if (!mem) { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 947 | dev_warn(mcasp->dev, |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 948 | "\"mpu\" mem resource not found, using index 0\n"); |
| 949 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 950 | if (!mem) { |
| 951 | dev_err(&pdev->dev, "no mem resource?\n"); |
| 952 | return -ENODEV; |
| 953 | } |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 954 | } |
| 955 | |
Julia Lawall | 96d31e2 | 2011-12-29 17:51:21 +0100 | [diff] [blame] | 956 | ioarea = devm_request_mem_region(&pdev->dev, mem->start, |
Vaibhav Bedia | d852f446 | 2011-02-09 18:39:52 +0530 | [diff] [blame] | 957 | resource_size(mem), pdev->name); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 958 | if (!ioarea) { |
| 959 | dev_err(&pdev->dev, "Audio region already claimed\n"); |
Julia Lawall | 96d31e2 | 2011-12-29 17:51:21 +0100 | [diff] [blame] | 960 | return -EBUSY; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 961 | } |
| 962 | |
Hebbar, Gururaja | 1088434 | 2012-08-08 20:40:32 +0530 | [diff] [blame] | 963 | pm_runtime_enable(&pdev->dev); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 964 | |
Hebbar, Gururaja | 1088434 | 2012-08-08 20:40:32 +0530 | [diff] [blame] | 965 | ret = pm_runtime_get_sync(&pdev->dev); |
| 966 | if (IS_ERR_VALUE(ret)) { |
| 967 | dev_err(&pdev->dev, "pm_runtime_get_sync() failed\n"); |
| 968 | return ret; |
| 969 | } |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 970 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 971 | mcasp->base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem)); |
| 972 | if (!mcasp->base) { |
Vaibhav Bedia | 4f82f02 | 2011-02-09 18:39:54 +0530 | [diff] [blame] | 973 | dev_err(&pdev->dev, "ioremap failed\n"); |
| 974 | ret = -ENOMEM; |
| 975 | goto err_release_clk; |
| 976 | } |
| 977 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 978 | mcasp->op_mode = pdata->op_mode; |
| 979 | mcasp->tdm_slots = pdata->tdm_slots; |
| 980 | mcasp->num_serializer = pdata->num_serializer; |
| 981 | mcasp->serial_dir = pdata->serial_dir; |
| 982 | mcasp->version = pdata->version; |
| 983 | mcasp->txnumevt = pdata->txnumevt; |
| 984 | mcasp->rxnumevt = pdata->rxnumevt; |
Peter Ujfalusi | 487dce8 | 2013-11-14 11:35:31 +0200 | [diff] [blame] | 985 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 986 | mcasp->dev = &pdev->dev; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 987 | |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 988 | dat = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dat"); |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 989 | if (dat) |
| 990 | mcasp->dat_port = true; |
Jyri Sarha | 256ba18 | 2013-10-18 18:37:42 +0300 | [diff] [blame] | 991 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 992 | dma_data = &mcasp->dma_params[SNDRV_PCM_STREAM_PLAYBACK]; |
Sekhar Nori | 48519f0 | 2010-07-19 12:31:16 +0530 | [diff] [blame] | 993 | dma_data->asp_chan_q = pdata->asp_chan_q; |
| 994 | dma_data->ram_chan_q = pdata->ram_chan_q; |
Matt Porter | b8ec56d | 2012-10-17 16:08:03 +0200 | [diff] [blame] | 995 | dma_data->sram_pool = pdata->sram_pool; |
Ben Gardiner | a0c8326 | 2011-05-18 09:27:45 -0400 | [diff] [blame] | 996 | dma_data->sram_size = pdata->sram_size_playback; |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 997 | if (dat) |
| 998 | dma_data->dma_addr = dat->start; |
| 999 | else |
| 1000 | dma_data->dma_addr = mem->start + pdata->tx_dma_offset; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1001 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1002 | res = platform_get_resource(pdev, IORESOURCE_DMA, 0); |
Jyri Sarha | 4023fe6 | 2013-10-18 18:37:43 +0300 | [diff] [blame] | 1003 | if (res) |
| 1004 | dma_data->channel = res->start; |
| 1005 | else |
| 1006 | dma_data->channel = pdata->tx_dma_channel; |
Troy Kisky | 92e2a6f | 2009-09-11 14:29:03 -0700 | [diff] [blame] | 1007 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 1008 | dma_data = &mcasp->dma_params[SNDRV_PCM_STREAM_CAPTURE]; |
Sekhar Nori | 48519f0 | 2010-07-19 12:31:16 +0530 | [diff] [blame] | 1009 | dma_data->asp_chan_q = pdata->asp_chan_q; |
| 1010 | dma_data->ram_chan_q = pdata->ram_chan_q; |
Matt Porter | b8ec56d | 2012-10-17 16:08:03 +0200 | [diff] [blame] | 1011 | dma_data->sram_pool = pdata->sram_pool; |
Ben Gardiner | a0c8326 | 2011-05-18 09:27:45 -0400 | [diff] [blame] | 1012 | dma_data->sram_size = pdata->sram_size_capture; |
Peter Ujfalusi | cbc7956c | 2013-11-14 11:35:32 +0200 | [diff] [blame] | 1013 | if (dat) |
| 1014 | dma_data->dma_addr = dat->start; |
| 1015 | else |
| 1016 | dma_data->dma_addr = mem->start + pdata->rx_dma_offset; |
| 1017 | |
| 1018 | if (mcasp->version < MCASP_VERSION_3) { |
| 1019 | mcasp->fifo_base = DAVINCI_MCASP_V2_AFIFO_BASE; |
| 1020 | /* dma_data->dma_addr is pointing to the data port address */ |
| 1021 | mcasp->dat_port = true; |
| 1022 | } else { |
| 1023 | mcasp->fifo_base = DAVINCI_MCASP_V3_AFIFO_BASE; |
| 1024 | } |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1025 | |
| 1026 | res = platform_get_resource(pdev, IORESOURCE_DMA, 1); |
Jyri Sarha | 4023fe6 | 2013-10-18 18:37:43 +0300 | [diff] [blame] | 1027 | if (res) |
| 1028 | dma_data->channel = res->start; |
| 1029 | else |
| 1030 | dma_data->channel = pdata->rx_dma_channel; |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1031 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 1032 | dev_set_drvdata(&pdev->dev, mcasp); |
Kuninori Morimoto | eeef0ed | 2013-03-21 03:31:19 -0700 | [diff] [blame] | 1033 | ret = snd_soc_register_component(&pdev->dev, &davinci_mcasp_component, |
| 1034 | &davinci_mcasp_dai[pdata->op_mode], 1); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1035 | |
| 1036 | if (ret != 0) |
Julia Lawall | 96d31e2 | 2011-12-29 17:51:21 +0100 | [diff] [blame] | 1037 | goto err_release_clk; |
Hebbar, Gururaja | f08095a | 2012-08-27 18:56:39 +0530 | [diff] [blame] | 1038 | |
| 1039 | ret = davinci_soc_platform_register(&pdev->dev); |
| 1040 | if (ret) { |
| 1041 | dev_err(&pdev->dev, "register PCM failed: %d\n", ret); |
Kuninori Morimoto | eeef0ed | 2013-03-21 03:31:19 -0700 | [diff] [blame] | 1042 | goto err_unregister_component; |
Hebbar, Gururaja | f08095a | 2012-08-27 18:56:39 +0530 | [diff] [blame] | 1043 | } |
| 1044 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1045 | return 0; |
| 1046 | |
Kuninori Morimoto | eeef0ed | 2013-03-21 03:31:19 -0700 | [diff] [blame] | 1047 | err_unregister_component: |
| 1048 | snd_soc_unregister_component(&pdev->dev); |
Vaibhav Bedia | eef6d7b | 2011-02-09 18:39:53 +0530 | [diff] [blame] | 1049 | err_release_clk: |
Hebbar, Gururaja | 1088434 | 2012-08-08 20:40:32 +0530 | [diff] [blame] | 1050 | pm_runtime_put_sync(&pdev->dev); |
| 1051 | pm_runtime_disable(&pdev->dev); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1052 | return ret; |
| 1053 | } |
| 1054 | |
| 1055 | static int davinci_mcasp_remove(struct platform_device *pdev) |
| 1056 | { |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1057 | |
Kuninori Morimoto | eeef0ed | 2013-03-21 03:31:19 -0700 | [diff] [blame] | 1058 | snd_soc_unregister_component(&pdev->dev); |
Hebbar, Gururaja | f08095a | 2012-08-27 18:56:39 +0530 | [diff] [blame] | 1059 | davinci_soc_platform_unregister(&pdev->dev); |
Hebbar, Gururaja | 1088434 | 2012-08-08 20:40:32 +0530 | [diff] [blame] | 1060 | |
| 1061 | pm_runtime_put_sync(&pdev->dev); |
| 1062 | pm_runtime_disable(&pdev->dev); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1063 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1064 | return 0; |
| 1065 | } |
| 1066 | |
Daniel Mack | a85e419 | 2013-10-01 14:50:02 +0200 | [diff] [blame] | 1067 | #ifdef CONFIG_PM_SLEEP |
| 1068 | static int davinci_mcasp_suspend(struct device *dev) |
| 1069 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 1070 | struct davinci_mcasp *mcasp = dev_get_drvdata(dev); |
| 1071 | void __iomem *base = mcasp->base; |
Daniel Mack | a85e419 | 2013-10-01 14:50:02 +0200 | [diff] [blame] | 1072 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 1073 | mcasp->context.txfmtctl = mcasp_get_reg(base + DAVINCI_MCASP_TXFMCTL_REG); |
| 1074 | mcasp->context.rxfmtctl = mcasp_get_reg(base + DAVINCI_MCASP_RXFMCTL_REG); |
| 1075 | mcasp->context.txfmt = mcasp_get_reg(base + DAVINCI_MCASP_TXFMT_REG); |
| 1076 | mcasp->context.rxfmt = mcasp_get_reg(base + DAVINCI_MCASP_RXFMT_REG); |
| 1077 | mcasp->context.aclkxctl = mcasp_get_reg(base + DAVINCI_MCASP_ACLKXCTL_REG); |
| 1078 | mcasp->context.aclkrctl = mcasp_get_reg(base + DAVINCI_MCASP_ACLKRCTL_REG); |
| 1079 | mcasp->context.pdir = mcasp_get_reg(base + DAVINCI_MCASP_PDIR_REG); |
Daniel Mack | a85e419 | 2013-10-01 14:50:02 +0200 | [diff] [blame] | 1080 | |
| 1081 | return 0; |
| 1082 | } |
| 1083 | |
| 1084 | static int davinci_mcasp_resume(struct device *dev) |
| 1085 | { |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 1086 | struct davinci_mcasp *mcasp = dev_get_drvdata(dev); |
| 1087 | void __iomem *base = mcasp->base; |
Daniel Mack | a85e419 | 2013-10-01 14:50:02 +0200 | [diff] [blame] | 1088 | |
Peter Ujfalusi | 70091a3 | 2013-11-14 11:35:29 +0200 | [diff] [blame] | 1089 | mcasp_set_reg(base + DAVINCI_MCASP_TXFMCTL_REG, mcasp->context.txfmtctl); |
| 1090 | mcasp_set_reg(base + DAVINCI_MCASP_RXFMCTL_REG, mcasp->context.rxfmtctl); |
| 1091 | mcasp_set_reg(base + DAVINCI_MCASP_TXFMT_REG, mcasp->context.txfmt); |
| 1092 | mcasp_set_reg(base + DAVINCI_MCASP_RXFMT_REG, mcasp->context.rxfmt); |
| 1093 | mcasp_set_reg(base + DAVINCI_MCASP_ACLKXCTL_REG, mcasp->context.aclkxctl); |
| 1094 | mcasp_set_reg(base + DAVINCI_MCASP_ACLKRCTL_REG, mcasp->context.aclkrctl); |
| 1095 | mcasp_set_reg(base + DAVINCI_MCASP_PDIR_REG, mcasp->context.pdir); |
Daniel Mack | a85e419 | 2013-10-01 14:50:02 +0200 | [diff] [blame] | 1096 | |
| 1097 | return 0; |
| 1098 | } |
| 1099 | #endif |
| 1100 | |
| 1101 | SIMPLE_DEV_PM_OPS(davinci_mcasp_pm_ops, |
| 1102 | davinci_mcasp_suspend, |
| 1103 | davinci_mcasp_resume); |
| 1104 | |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1105 | static struct platform_driver davinci_mcasp_driver = { |
| 1106 | .probe = davinci_mcasp_probe, |
| 1107 | .remove = davinci_mcasp_remove, |
| 1108 | .driver = { |
| 1109 | .name = "davinci-mcasp", |
| 1110 | .owner = THIS_MODULE, |
Daniel Mack | a85e419 | 2013-10-01 14:50:02 +0200 | [diff] [blame] | 1111 | .pm = &davinci_mcasp_pm_ops, |
Sachin Kamat | ea421eb | 2013-05-22 16:53:37 +0530 | [diff] [blame] | 1112 | .of_match_table = mcasp_dt_ids, |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1113 | }, |
| 1114 | }; |
| 1115 | |
Axel Lin | f9b8a51 | 2011-11-25 10:09:27 +0800 | [diff] [blame] | 1116 | module_platform_driver(davinci_mcasp_driver); |
Chaithrika U S | b67f448 | 2009-06-05 06:28:40 -0400 | [diff] [blame] | 1117 | |
| 1118 | MODULE_AUTHOR("Steve Chen"); |
| 1119 | MODULE_DESCRIPTION("TI DAVINCI McASP SoC Interface"); |
| 1120 | MODULE_LICENSE("GPL"); |