FM / spi

/usr/src/linux-headers-5.15.0-190/include/linux/spi/

/usr/src/linux-headers-5.15.0-190/include/linux/spi

Name	Size	Mode	Actions
ad7877.h	835	0644	edit dl rm
ads7846.h	2065	0644	edit dl rm
altera.h	1174	0644	edit dl rm
at73c213.h	828	0644	edit dl rm
at86rf230.h	329	0644	edit dl rm
cc2520.h	410	0644	edit dl rm
corgi_lcd.h	377	0644	edit dl rm
ds1305.h	1107	0644	edit dl rm
eeprom.h	1217	0644	edit dl rm
flash.h	1023	0644	edit dl rm
libertas_spi.h	700	0644	edit dl rm
max7301.h	946	0644	edit dl rm
mc33880.h	196	0644	edit dl rm
mmc_spi.h	1303	0644	edit dl rm
mxs-spi.h	4911	0644	edit dl rm
pxa2xx_spi.h	1280	0644	edit dl rm
rspi.h	304	0644	edit dl rm
s3c24xx-fiq.h	788	0644	edit dl rm
s3c24xx.h	684	0644	edit dl rm
sh_hspi.h	161	0644	edit dl rm
sh_msiof.h	357	0644	edit dl rm
spi-fsl-dspi.h	560	0644	edit dl rm
spi-mem.h	13354	0644	edit dl rm
spi.h	57844	0644	edit dl rm
spi_bitbang.h	1599	0644	edit dl rm
spi_gpio.h	724	0644	edit dl rm
spi_oc_tiny.h	471	0644	edit dl rm
tdo24m.h	210	0644	edit dl rm
tle62x0.h	265	0644	edit dl rm
xilinx_spi.h	627	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/include/linux/spi/spi_bitbang.h (1599B)

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef	__SPI_BITBANG_H
#define	__SPI_BITBANG_H

#include <linux/workqueue.h>

struct spi_bitbang {
	struct mutex		lock;
	u8			busy;
	u8			use_dma;
	u16			flags;		/* extra spi->mode support */

struct spi_master	*master;

/* setup_transfer() changes clock and/or wordsize to match settings
	 * for this transfer; zeroes restore defaults from spi_device.
	 */
	int	(*setup_transfer)(struct spi_device *spi,
			struct spi_transfer *t);

void	(*chipselect)(struct spi_device *spi, int is_on);
#define	BITBANG_CS_ACTIVE	1	/* normally nCS, active low */
#define	BITBANG_CS_INACTIVE	0

/* txrx_bufs() may handle dma mapping for transfers that don't
	 * already have one (transfer.{tx,rx}_dma is zero), or use PIO
	 */
	int	(*txrx_bufs)(struct spi_device *spi, struct spi_transfer *t);

/* txrx_word[SPI_MODE_*]() just looks like a shift register */
	u32	(*txrx_word[4])(struct spi_device *spi,
			unsigned nsecs,
			u32 word, u8 bits, unsigned flags);
	int	(*set_line_direction)(struct spi_device *spi, bool output);
};

/* you can call these default bitbang->master methods from your custom
 * methods, if you like.
 */
extern int spi_bitbang_setup(struct spi_device *spi);
extern void spi_bitbang_cleanup(struct spi_device *spi);
extern int spi_bitbang_setup_transfer(struct spi_device *spi,
				      struct spi_transfer *t);

/* start or stop queue processing */
extern int spi_bitbang_start(struct spi_bitbang *spi);
extern int spi_bitbang_init(struct spi_bitbang *spi);
extern void spi_bitbang_stop(struct spi_bitbang *spi);

#endif	/* __SPI_BITBANG_H */

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __SPI_BITBANG_H #define __SPI_BITBANG_H #include struct spi_bitbang { struct mutex lock; u8 busy; u8 use_dma; u16 flags; /* extra spi->mode support */ struct spi_master *master; /* setup_transfer() changes clock and/or wordsize to match settings * for this transfer; zeroes restore defaults from spi_device. */ int (*setup_transfer)(struct spi_device *spi, struct spi_transfer *t); void (*chipselect)(struct spi_device *spi, int is_on); #define BITBANG_CS_ACTIVE 1 /* normally nCS, active low */ #define BITBANG_CS_INACTIVE 0 /* txrx_bufs() may handle dma mapping for transfers that don't * already have one (transfer.{tx,rx}_dma is zero), or use PIO */ int (*txrx_bufs)(struct spi_device *spi, struct spi_transfer *t); /* txrx_word[SPI_MODE_*]() just looks like a shift register */ u32 (*txrx_word[4])(struct spi_device *spi, unsigned nsecs, u32 word, u8 bits, unsigned flags); int (*set_line_direction)(struct spi_device *spi, bool output); }; /* you can call these default bitbang->master methods from your custom * methods, if you like. */ extern int spi_bitbang_setup(struct spi_device *spi); extern void spi_bitbang_cleanup(struct spi_device *spi); extern int spi_bitbang_setup_transfer(struct spi_device *spi, struct spi_transfer *t); /* start or stop queue processing */ extern int spi_bitbang_start(struct spi_bitbang *spi); extern int spi_bitbang_init(struct spi_bitbang *spi); extern void spi_bitbang_stop(struct spi_bitbang *spi); #endif /* __SPI_BITBANG_H */