Edit File: mmci.h
/* * include/linux/amba/mmci.h */ #ifndef AMBA_MMCI_H #define AMBA_MMCI_H #include <linux/mmc/host.h> /* * These defines is places here due to access is needed from machine * configuration files. The ST Micro version does not have ROD and * reuse the voltage registers for direction settings. */ #define MCI_ST_DATA2DIREN (1 << 2) #define MCI_ST_CMDDIREN (1 << 3) #define MCI_ST_DATA0DIREN (1 << 4) #define MCI_ST_DATA31DIREN (1 << 5) #define MCI_ST_FBCLKEN (1 << 7) #define MCI_ST_DATA74DIREN (1 << 8) /* Just some dummy forwarding */ struct dma_chan; /** * struct mmci_platform_data - platform configuration for the MMCI * (also known as PL180) block. * @f_max: the maximum operational frequency for this host in this * platform configuration. When this is specified it takes precedence * over the module parameter for the same frequency. * @ocr_mask: available voltages on the 4 pins from the block, this * is ignored if a regulator is used, see the MMC_VDD_* masks in * mmc/host.h * @ios_handler: a callback function to act on specfic ios changes, * used for example to control a levelshifter * mask into a value to be binary (or set some other custom bits * in MMCIPWR) or:ed and written into the MMCIPWR register of the * block. May also control external power based on the power_mode. * @status: if no GPIO read function was given to the block in * gpio_wp (below) this function will be called to determine * whether a card is present in the MMC slot or not * @gpio_wp: read this GPIO pin to see if the card is write protected * @gpio_cd: read this GPIO pin to detect card insertion * @cd_invert: true if the gpio_cd pin value is active low * @capabilities: the capabilities of the block as implemented in * this platform, signify anything MMC_CAP_* from mmc/host.h * @capabilities2: more capabilities, MMC_CAP2_* from mmc/host.h * @sigdir: a bit field indicating for what bits in the MMC bus the host * should enable signal direction indication. * @dma_filter: function used to select an appropriate RX and TX * DMA channel to be used for DMA, if and only if you're deploying the * generic DMA engine * @dma_rx_param: parameter passed to the DMA allocation * filter in order to select an appropriate RX channel. If * there is a bidirectional RX+TX channel, then just specify * this and leave dma_tx_param set to NULL * @dma_tx_param: parameter passed to the DMA allocation * filter in order to select an appropriate TX channel. If this * is NULL the driver will attempt to use the RX channel as a * bidirectional channel */ struct mmci_platform_data { unsigned int f_max; unsigned int ocr_mask; int (*ios_handler)(struct device *, struct mmc_ios *); unsigned int (*status)(struct device *); int gpio_wp; int gpio_cd; bool cd_invert; unsigned long capabilities; unsigned long capabilities2; u32 sigdir; bool (*dma_filter)(struct dma_chan *chan, void *filter_param); void *dma_rx_param; void *dma_tx_param; }; #endif