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Commit | Line | Data |
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1da177e4 | 1 | /* |
6ef297f8 | 2 | * include/linux/amba/mmci.h |
1da177e4 | 3 | */ |
6ef297f8 LW |
4 | #ifndef AMBA_MMCI_H |
5 | #define AMBA_MMCI_H | |
1da177e4 | 6 | |
f74d132c | 7 | #include <linux/mmc/host.h> |
1da177e4 | 8 | |
c8ebae37 RK |
9 | /* Just some dummy forwarding */ |
10 | struct dma_chan; | |
11 | ||
808d97cc LW |
12 | /** |
13 | * struct mmci_platform_data - platform configuration for the MMCI | |
14 | * (also known as PL180) block. | |
15 | * @f_max: the maximum operational frequency for this host in this | |
16 | * platform configuration. When this is specified it takes precedence | |
17 | * over the module parameter for the same frequency. | |
18 | * @ocr_mask: available voltages on the 4 pins from the block, this | |
19 | * is ignored if a regulator is used, see the MMC_VDD_* masks in | |
20 | * mmc/host.h | |
bb8f563c RV |
21 | * @vdd_handler: a callback function to translate a MMC_VDD_* |
22 | * mask into a value to be binary (or set some other custom bits | |
23 | * in MMCIPWR) or:ed and written into the MMCIPWR register of the | |
24 | * block. May also control external power based on the power_mode. | |
808d97cc LW |
25 | * @status: if no GPIO read function was given to the block in |
26 | * gpio_wp (below) this function will be called to determine | |
27 | * whether a card is present in the MMC slot or not | |
28 | * @gpio_wp: read this GPIO pin to see if the card is write protected | |
29 | * @gpio_cd: read this GPIO pin to detect card insertion | |
29719445 | 30 | * @cd_invert: true if the gpio_cd pin value is active low |
808d97cc LW |
31 | * @capabilities: the capabilities of the block as implemented in |
32 | * this platform, signify anything MMC_CAP_* from mmc/host.h | |
25985edc | 33 | * @dma_filter: function used to select an appropriate RX and TX |
c8ebae37 RK |
34 | * DMA channel to be used for DMA, if and only if you're deploying the |
35 | * generic DMA engine | |
36 | * @dma_rx_param: parameter passed to the DMA allocation | |
25985edc | 37 | * filter in order to select an appropriate RX channel. If |
c8ebae37 RK |
38 | * there is a bidirectional RX+TX channel, then just specify |
39 | * this and leave dma_tx_param set to NULL | |
40 | * @dma_tx_param: parameter passed to the DMA allocation | |
25985edc | 41 | * filter in order to select an appropriate TX channel. If this |
c8ebae37 RK |
42 | * is NULL the driver will attempt to use the RX channel as a |
43 | * bidirectional channel | |
808d97cc | 44 | */ |
6ef297f8 | 45 | struct mmci_platform_data { |
808d97cc LW |
46 | unsigned int f_max; |
47 | unsigned int ocr_mask; | |
bb8f563c RV |
48 | u32 (*vdd_handler)(struct device *, unsigned int vdd, |
49 | unsigned char power_mode); | |
1da177e4 | 50 | unsigned int (*status)(struct device *); |
7fb2bbf4 RK |
51 | int gpio_wp; |
52 | int gpio_cd; | |
29719445 | 53 | bool cd_invert; |
9e6c82cd | 54 | unsigned long capabilities; |
c8ebae37 RK |
55 | bool (*dma_filter)(struct dma_chan *chan, void *filter_param); |
56 | void *dma_rx_param; | |
57 | void *dma_tx_param; | |
1da177e4 LT |
58 | }; |
59 | ||
60 | #endif |