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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 | /* * eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode * * Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com> * * based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c * which is Copyright 2009 Simtec Electronics * and on sound/soc/imx/phycore-ac97.c which is * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * */ #include <linux/errno.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/device.h> #include <linux/i2c.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <asm/mach-types.h> #include "../codecs/tlv320aic23.h" #include "imx-ssi.h" #include "imx-audmux.h" #define CODEC_CLOCK 12000000 static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int ret; ret = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_OUT); if (ret) { dev_err(cpu_dai->dev, "Failed to set the codec sysclk.\n"); return ret; } snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0); ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, SND_SOC_CLOCK_IN); /* fsl_ssi lacks the set_sysclk ops */ if (ret && ret != -EINVAL) { dev_err(cpu_dai->dev, "Can't set the IMX_SSP_SYS_CLK CPU system clock.\n"); return ret; } return 0; } static const struct snd_soc_ops eukrea_tlv320_snd_ops = { .hw_params = eukrea_tlv320_hw_params, }; static struct snd_soc_dai_link eukrea_tlv320_dai = { .name = "tlv320aic23", .stream_name = "TLV320AIC23", .codec_dai_name = "tlv320aic23-hifi", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM, .ops = &eukrea_tlv320_snd_ops, }; static struct snd_soc_card eukrea_tlv320 = { .owner = THIS_MODULE, .dai_link = &eukrea_tlv320_dai, .num_links = 1, }; static int eukrea_tlv320_probe(struct platform_device *pdev) { int ret; int int_port = 0, ext_port; struct device_node *np = pdev->dev.of_node; struct device_node *ssi_np = NULL, *codec_np = NULL, *tmp_np = NULL; eukrea_tlv320.dev = &pdev->dev; if (np) { ret = snd_soc_of_parse_card_name(&eukrea_tlv320, "eukrea,model"); if (ret) { dev_err(&pdev->dev, "eukrea,model node missing or invalid.\n"); goto err; } ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0); if (!ssi_np) { dev_err(&pdev->dev, "ssi-controller missing or invalid.\n"); ret = -ENODEV; goto err; } codec_np = of_parse_phandle(ssi_np, "codec-handle", 0); if (codec_np) eukrea_tlv320_dai.codec_of_node = codec_np; else dev_err(&pdev->dev, "codec-handle node missing or invalid.\n"); ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port); if (ret) { dev_err(&pdev->dev, "fsl,mux-int-port node missing or invalid.\n"); goto err; } ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port); if (ret) { dev_err(&pdev->dev, "fsl,mux-ext-port node missing or invalid.\n"); goto err; } /* * The port numbering in the hardware manual starts at 1, while * the audmux API expects it starts at 0. */ int_port--; ext_port--; eukrea_tlv320_dai.cpu_of_node = ssi_np; eukrea_tlv320_dai.platform_of_node = ssi_np; } else { eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0"; eukrea_tlv320_dai.platform_name = "imx-ssi.0"; eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a"; eukrea_tlv320.name = "cpuimx-audio"; } if (machine_is_eukrea_cpuimx27() || (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux"))) { imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, IMX_AUDMUX_V1_PCR_SYN | IMX_AUDMUX_V1_PCR_TFSDIR | IMX_AUDMUX_V1_PCR_TCLKDIR | IMX_AUDMUX_V1_PCR_RFSDIR | IMX_AUDMUX_V1_PCR_RCLKDIR | IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) ); imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4, IMX_AUDMUX_V1_PCR_SYN | IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) ); of_node_put(tmp_np); } else if (machine_is_eukrea_cpuimx25sd() || machine_is_eukrea_cpuimx35sd() || machine_is_eukrea_cpuimx51sd() || (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux"))) { if (!np) ext_port = machine_is_eukrea_cpuimx25sd() ? 4 : 3; imx_audmux_v2_configure_port(int_port, IMX_AUDMUX_V2_PTCR_SYN | IMX_AUDMUX_V2_PTCR_TFSDIR | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | IMX_AUDMUX_V2_PTCR_TCLKDIR | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port), IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port) ); imx_audmux_v2_configure_port(ext_port, IMX_AUDMUX_V2_PTCR_SYN, IMX_AUDMUX_V2_PDCR_RXDSEL(int_port) ); of_node_put(tmp_np); } else { if (np) { /* The eukrea,asoc-tlv320 driver was explicitly * requested (through the device tree). */ dev_err(&pdev->dev, "Missing or invalid audmux DT node.\n"); return -ENODEV; } else { /* Return happy. * We might run on a totally different machine. */ return 0; } } ret = snd_soc_register_card(&eukrea_tlv320); err: if (ret) dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); of_node_put(ssi_np); return ret; } static int eukrea_tlv320_remove(struct platform_device *pdev) { snd_soc_unregister_card(&eukrea_tlv320); return 0; } static const struct of_device_id imx_tlv320_dt_ids[] = { { .compatible = "eukrea,asoc-tlv320"}, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids); static struct platform_driver eukrea_tlv320_driver = { .driver = { .name = "eukrea_tlv320", .of_match_table = imx_tlv320_dt_ids, }, .probe = eukrea_tlv320_probe, .remove = eukrea_tlv320_remove, }; module_platform_driver(eukrea_tlv320_driver); MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>"); MODULE_DESCRIPTION("CPUIMX ALSA SoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:eukrea_tlv320"); |