/include/linux/amba/mmci.h

https://github.com/airy09/android_kernel_sony_apq8064 · C Header · 90 lines · 37 code · 7 blank · 46 comment · 0 complexity · 25194fe95d5955bfcb66374100959e35 MD5 · raw file

  1. /*
  2. * include/linux/amba/mmci.h
  3. */
  4. #ifndef AMBA_MMCI_H
  5. #define AMBA_MMCI_H
  6. #include <linux/mmc/host.h>
  7. #include <linux/mmc/card.h>
  8. #include <linux/mmc/sdio_func.h>
  9. struct embedded_sdio_data {
  10. struct sdio_cis cis;
  11. struct sdio_cccr cccr;
  12. struct sdio_embedded_func *funcs;
  13. int num_funcs;
  14. };
  15. /*
  16. * These defines is places here due to access is needed from machine
  17. * configuration files. The ST Micro version does not have ROD and
  18. * reuse the voltage registers for direction settings.
  19. */
  20. #define MCI_ST_DATA2DIREN (1 << 2)
  21. #define MCI_ST_CMDDIREN (1 << 3)
  22. #define MCI_ST_DATA0DIREN (1 << 4)
  23. #define MCI_ST_DATA31DIREN (1 << 5)
  24. #define MCI_ST_FBCLKEN (1 << 7)
  25. #define MCI_ST_DATA74DIREN (1 << 8)
  26. /* Just some dummy forwarding */
  27. struct dma_chan;
  28. /**
  29. * struct mmci_platform_data - platform configuration for the MMCI
  30. * (also known as PL180) block.
  31. * @f_max: the maximum operational frequency for this host in this
  32. * platform configuration. When this is specified it takes precedence
  33. * over the module parameter for the same frequency.
  34. * @ocr_mask: available voltages on the 4 pins from the block, this
  35. * is ignored if a regulator is used, see the MMC_VDD_* masks in
  36. * mmc/host.h
  37. * @ios_handler: a callback function to act on specfic ios changes,
  38. * used for example to control a levelshifter
  39. * mask into a value to be binary (or set some other custom bits
  40. * in MMCIPWR) or:ed and written into the MMCIPWR register of the
  41. * block. May also control external power based on the power_mode.
  42. * @status: if no GPIO read function was given to the block in
  43. * gpio_wp (below) this function will be called to determine
  44. * whether a card is present in the MMC slot or not
  45. * @gpio_wp: read this GPIO pin to see if the card is write protected
  46. * @gpio_cd: read this GPIO pin to detect card insertion
  47. * @cd_invert: true if the gpio_cd pin value is active low
  48. * @capabilities: the capabilities of the block as implemented in
  49. * this platform, signify anything MMC_CAP_* from mmc/host.h
  50. * @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h
  51. * @sigdir: a bit field indicating for what bits in the MMC bus the host
  52. * should enable signal direction indication.
  53. * @dma_filter: function used to select an appropriate RX and TX
  54. * DMA channel to be used for DMA, if and only if you're deploying the
  55. * generic DMA engine
  56. * @dma_rx_param: parameter passed to the DMA allocation
  57. * filter in order to select an appropriate RX channel. If
  58. * there is a bidirectional RX+TX channel, then just specify
  59. * this and leave dma_tx_param set to NULL
  60. * @dma_tx_param: parameter passed to the DMA allocation
  61. * filter in order to select an appropriate TX channel. If this
  62. * is NULL the driver will attempt to use the RX channel as a
  63. * bidirectional channel
  64. */
  65. struct mmci_platform_data {
  66. unsigned int f_max;
  67. unsigned int ocr_mask;
  68. int (*ios_handler)(struct device *, struct mmc_ios *);
  69. unsigned int (*status)(struct device *);
  70. int gpio_wp;
  71. int gpio_cd;
  72. bool cd_invert;
  73. unsigned long capabilities;
  74. unsigned long capabilities2;
  75. u32 sigdir;
  76. bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
  77. void *dma_rx_param;
  78. void *dma_tx_param;
  79. unsigned int status_irq;
  80. struct embedded_sdio_data *embedded_sdio;
  81. int (*register_status_notify)(void (*callback)(int card_present, void *dev_id), void *dev_id);
  82. };
  83. #endif