| /* | |
| * 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 |