David Brownell | 15a0580 | 2007-08-08 09:12:54 -0700 | [diff] [blame] | 1 | #ifndef __LINUX_SPI_MMC_SPI_H |
| 2 | #define __LINUX_SPI_MMC_SPI_H |
| 3 | |
Anton Vorontsov | 9c43df5 | 2008-12-30 18:15:28 +0300 | [diff] [blame] | 4 | #include <linux/spi/spi.h> |
Anton Vorontsov | 63e1462 | 2008-06-01 11:49:32 +0200 | [diff] [blame] | 5 | #include <linux/interrupt.h> |
| 6 | |
Paul Gortmaker | 313162d | 2012-01-30 11:46:54 -0500 | [diff] [blame] | 7 | struct device; |
David Brownell | 15a0580 | 2007-08-08 09:12:54 -0700 | [diff] [blame] | 8 | struct mmc_host; |
| 9 | |
Laurent Pinchart | bf287a9 | 2013-08-08 12:38:32 +0200 | [diff] [blame] | 10 | #define MMC_SPI_USE_CD_GPIO (1 << 0) |
| 11 | #define MMC_SPI_USE_RO_GPIO (1 << 1) |
| 12 | #define MMC_SPI_CD_GPIO_ACTIVE_LOW (1 << 2) |
| 13 | #define MMC_SPI_RO_GPIO_ACTIVE_LOW (1 << 3) |
| 14 | |
David Brownell | 15a0580 | 2007-08-08 09:12:54 -0700 | [diff] [blame] | 15 | /* Put this in platform_data of a device being used to manage an MMC/SD |
| 16 | * card slot. (Modeled after PXA mmc glue; see that for usage examples.) |
| 17 | * |
| 18 | * REVISIT This is not a spi-specific notion. Any card slot should be |
| 19 | * able to handle it. If the MMC core doesn't adopt this kind of notion, |
| 20 | * switch the "struct device *" parameters over to "struct spi_device *". |
| 21 | */ |
| 22 | struct mmc_spi_platform_data { |
| 23 | /* driver activation and (optional) card detect irq hookup */ |
| 24 | int (*init)(struct device *, |
| 25 | irqreturn_t (*)(int, void *), |
| 26 | void *); |
| 27 | void (*exit)(struct device *, void *); |
| 28 | |
Laurent Pinchart | bf287a9 | 2013-08-08 12:38:32 +0200 | [diff] [blame] | 29 | /* |
| 30 | * Card Detect and Read Only GPIOs. To enable debouncing on the card |
| 31 | * detect GPIO, set the cd_debounce to the debounce time in |
| 32 | * microseconds. |
| 33 | */ |
| 34 | unsigned int flags; |
| 35 | unsigned int cd_gpio; |
| 36 | unsigned int cd_debounce; |
| 37 | unsigned int ro_gpio; |
| 38 | |
Anton Vorontsov | 619ef4b | 2008-06-17 18:17:21 +0400 | [diff] [blame] | 39 | /* Capabilities to pass into mmc core (e.g. MMC_CAP_NEEDS_POLL). */ |
| 40 | unsigned long caps; |
Laurent Pinchart | bf287a9 | 2013-08-08 12:38:32 +0200 | [diff] [blame] | 41 | unsigned long caps2; |
Anton Vorontsov | 619ef4b | 2008-06-17 18:17:21 +0400 | [diff] [blame] | 42 | |
David Brownell | 15a0580 | 2007-08-08 09:12:54 -0700 | [diff] [blame] | 43 | /* how long to debounce card detect, in msecs */ |
| 44 | u16 detect_delay; |
| 45 | |
| 46 | /* power management */ |
| 47 | u16 powerup_msecs; /* delay of up to 250 msec */ |
| 48 | u32 ocr_mask; /* available voltages */ |
| 49 | void (*setpower)(struct device *, unsigned int maskval); |
| 50 | }; |
| 51 | |
Anton Vorontsov | 9c43df5 | 2008-12-30 18:15:28 +0300 | [diff] [blame] | 52 | #ifdef CONFIG_OF |
| 53 | extern struct mmc_spi_platform_data *mmc_spi_get_pdata(struct spi_device *spi); |
| 54 | extern void mmc_spi_put_pdata(struct spi_device *spi); |
| 55 | #else |
| 56 | static inline struct mmc_spi_platform_data * |
| 57 | mmc_spi_get_pdata(struct spi_device *spi) |
| 58 | { |
| 59 | return spi->dev.platform_data; |
| 60 | } |
| 61 | static inline void mmc_spi_put_pdata(struct spi_device *spi) {} |
| 62 | #endif /* CONFIG_OF */ |
| 63 | |
David Brownell | 15a0580 | 2007-08-08 09:12:54 -0700 | [diff] [blame] | 64 | #endif /* __LINUX_SPI_MMC_SPI_H */ |