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e0c9905e SS |
1 | /* |
2 | * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
17 | */ | |
8348c259 SAS |
18 | #ifndef __linux_pxa2xx_spi_h |
19 | #define __linux_pxa2xx_spi_h | |
e0c9905e | 20 | |
8348c259 | 21 | #include <linux/pxa2xx_ssp.h> |
e0c9905e SS |
22 | |
23 | #define PXA2XX_CS_ASSERT (0x01) | |
24 | #define PXA2XX_CS_DEASSERT (0x02) | |
25 | ||
b729bf34 MW |
26 | struct dma_chan; |
27 | ||
e0c9905e SS |
28 | /* device.platform_data for SSP controller devices */ |
29 | struct pxa2xx_spi_master { | |
e0c9905e SS |
30 | u32 clock_enable; |
31 | u16 num_chipselect; | |
32 | u8 enable_dma; | |
851bacf5 | 33 | |
5928808e | 34 | /* DMA engine specific config */ |
b729bf34 MW |
35 | bool (*dma_filter)(struct dma_chan *chan, void *param); |
36 | void *tx_param; | |
37 | void *rx_param; | |
5928808e | 38 | |
851bacf5 MW |
39 | /* For non-PXA arches */ |
40 | struct ssp_device ssp; | |
e0c9905e SS |
41 | }; |
42 | ||
43 | /* spi_board_info.controller_data for SPI slave devices, | |
44 | * copied to spi_device.platform_data ... mostly for dma tuning | |
45 | */ | |
46 | struct pxa2xx_spi_chip { | |
47 | u8 tx_threshold; | |
a0d2642e | 48 | u8 tx_hi_threshold; |
e0c9905e SS |
49 | u8 rx_threshold; |
50 | u8 dma_burst_size; | |
8d94cc50 | 51 | u32 timeout; |
e0c9905e | 52 | u8 enable_loopback; |
a7bb3909 | 53 | int gpio_cs; |
e0c9905e SS |
54 | void (*cs_control)(u32 command); |
55 | }; | |
56 | ||
60172215 | 57 | #if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP) |
d6ea3df0 SAS |
58 | |
59 | #include <linux/clk.h> | |
60 | #include <mach/dma.h> | |
61 | ||
e172274c GL |
62 | extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info); |
63 | ||
d6ea3df0 | 64 | #endif |
8348c259 | 65 | #endif |