[linux-2.6-block.git] / include / linux / spi / pxa2xx_spi.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs
 */
#ifndef __linux_pxa2xx_spi_h
#define __linux_pxa2xx_spi_h

#include <linux/pxa2xx_ssp.h>

#define PXA2XX_CS_ASSERT (0x01)
#define PXA2XX_CS_DEASSERT (0x02)

struct dma_chan;

/* device.platform_data for SSP controller devices */
struct pxa2xx_spi_controller {
	u16 num_chipselect;
	u8 enable_dma;
	u8 dma_burst_size;
	bool is_slave;

	/* DMA engine specific config */
	bool (*dma_filter)(struct dma_chan *chan, void *param);
	void *tx_param;
	void *rx_param;

	/* For non-PXA arches */
	struct ssp_device ssp;
};

/* spi_board_info.controller_data for SPI slave devices,
 * copied to spi_device.platform_data ... mostly for dma tuning
 */
struct pxa2xx_spi_chip {
	u8 tx_threshold;
	u8 tx_hi_threshold;
	u8 rx_threshold;
	u8 dma_burst_size;
	u32 timeout;
	u8 enable_loopback;
	int gpio_cs;
	void (*cs_control)(u32 command);
};

#if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP)

#include <linux/clk.h>

extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_controller *info);

#endif
#endif
Commit	Line	Data
c942fddf	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
e0c9905e SS	2	/*
e0c9905e SS	3	* Copyright (C) 2005 Stephen Street / StreetFire Sound Labs
e0c9905e	4	*/
8348c259 SAS	5	#ifndef __linux_pxa2xx_spi_h
8348c259 SAS	6	#define __linux_pxa2xx_spi_h
e0c9905e	7
8348c259	8	#include <linux/pxa2xx_ssp.h>
e0c9905e SS	9
	10	#define PXA2XX_CS_ASSERT (0x01)
	11	#define PXA2XX_CS_DEASSERT (0x02)
	12
b729bf34 MW	13	struct dma_chan;
b729bf34 MW	14
e0c9905e	15	/* device.platform_data for SSP controller devices */
51eea52d	16	struct pxa2xx_spi_controller {
e0c9905e SS	17	u16 num_chipselect;
e0c9905e SS	18	u8 enable_dma;
37821a82	19	u8 dma_burst_size;
ec93cb6f	20	bool is_slave;
851bacf5	21
5928808e	22	/* DMA engine specific config */
b729bf34 MW	23	bool (dma_filter)(struct dma_chan chan, void *param);
	24	void *tx_param;
	25	void *rx_param;
5928808e	26
851bacf5 MW	27	/* For non-PXA arches */
851bacf5 MW	28	struct ssp_device ssp;
e0c9905e SS	29	};
	30
	31	/* spi_board_info.controller_data for SPI slave devices,
	32	* copied to spi_device.platform_data ... mostly for dma tuning
	33	*/
	34	struct pxa2xx_spi_chip {
	35	u8 tx_threshold;
a0d2642e	36	u8 tx_hi_threshold;
e0c9905e SS	37	u8 rx_threshold;
e0c9905e SS	38	u8 dma_burst_size;
8d94cc50	39	u32 timeout;
e0c9905e	40	u8 enable_loopback;
a7bb3909	41	int gpio_cs;
e0c9905e SS	42	void (*cs_control)(u32 command);
	43	};
	44
60172215	45	#if defined(CONFIG_ARCH_PXA) \|\| defined(CONFIG_ARCH_MMP)
d6ea3df0 SAS	46
d6ea3df0 SAS	47	#include <linux/clk.h>
d6ea3df0	48
51eea52d	49	extern void pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_controller *info);
e172274c	50
d6ea3df0	51	#endif
8348c259	52	#endif