efika-audio-fabric.c 2.2 KB

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  1. /*
  2. * Efika driver for the PSC of the Freescale MPC52xx
  3. * configured as AC97 interface
  4. *
  5. * Copyright 2008 Jon Smirl, Digispeaker
  6. * Author: Jon Smirl <jonsmirl@gmail.com>
  7. *
  8. * This file is licensed under the terms of the GNU General Public License
  9. * version 2. This program is licensed "as is" without any warranty of any
  10. * kind, whether express or implied.
  11. */
  12. #include <linux/init.h>
  13. #include <linux/module.h>
  14. #include <linux/interrupt.h>
  15. #include <linux/device.h>
  16. #include <linux/delay.h>
  17. #include <linux/of_device.h>
  18. #include <linux/of_platform.h>
  19. #include <linux/dma-mapping.h>
  20. #include <sound/core.h>
  21. #include <sound/pcm.h>
  22. #include <sound/pcm_params.h>
  23. #include <sound/initval.h>
  24. #include <sound/soc.h>
  25. #include "mpc5200_dma.h"
  26. #define DRV_NAME "efika-audio-fabric"
  27. SND_SOC_DAILINK_DEFS(analog,
  28. DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
  29. DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
  30. "stac9766-hifi-analog")),
  31. DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
  32. SND_SOC_DAILINK_DEFS(iec958,
  33. DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
  34. DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
  35. "stac9766-hifi-IEC958")),
  36. DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
  37. static struct snd_soc_dai_link efika_fabric_dai[] = {
  38. {
  39. .name = "AC97",
  40. .stream_name = "AC97 Analog",
  41. SND_SOC_DAILINK_REG(analog),
  42. },
  43. {
  44. .name = "AC97",
  45. .stream_name = "AC97 IEC958",
  46. SND_SOC_DAILINK_REG(iec958),
  47. },
  48. };
  49. static struct snd_soc_card card = {
  50. .name = "Efika",
  51. .owner = THIS_MODULE,
  52. .dai_link = efika_fabric_dai,
  53. .num_links = ARRAY_SIZE(efika_fabric_dai),
  54. };
  55. static __init int efika_fabric_init(void)
  56. {
  57. struct platform_device *pdev;
  58. int rc;
  59. if (!of_machine_is_compatible("bplan,efika"))
  60. return -ENODEV;
  61. pdev = platform_device_alloc("soc-audio", 1);
  62. if (!pdev) {
  63. pr_err("efika_fabric_init: platform_device_alloc() failed\n");
  64. return -ENODEV;
  65. }
  66. platform_set_drvdata(pdev, &card);
  67. rc = platform_device_add(pdev);
  68. if (rc) {
  69. pr_err("efika_fabric_init: platform_device_add() failed\n");
  70. platform_device_put(pdev);
  71. return -ENODEV;
  72. }
  73. return 0;
  74. }
  75. module_init(efika_fabric_init);
  76. MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
  77. MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
  78. MODULE_LICENSE("GPL");