FM / spi

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/spi/

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/spi

Name	Size	Mode	Actions
ad7877.h	835	0644	edit dl rm
adi_spi3.h	15467	0644	edit dl rm
ads7846.h	2065	0644	edit dl rm
at73c213.h	828	0644	edit dl rm
at86rf230.h	724	0644	edit dl rm
cc2520.h	620	0644	edit dl rm
corgi_lcd.h	460	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
ifx_modem.h	616	0644	edit dl rm
l4f00242t03.h	847	0644	edit dl rm
libertas_spi.h	907	0644	edit dl rm
lms283gf05.h	775	0644	edit dl rm
max7301.h	939	0644	edit dl rm
mc33880.h	196	0644	edit dl rm
mcp23s08.h	685	0644	edit dl rm
mmc_spi.h	1958	0644	edit dl rm
mxs-spi.h	5367	0644	edit dl rm
pxa2xx_spi.h	1535	0644	edit dl rm
rspi.h	715	0644	edit dl rm
s3c24xx.h	816	0644	edit dl rm
sh_hspi.h	572	0644	edit dl rm
sh_msiof.h	357	0644	edit dl rm
spi-fsl-dspi.h	955	0644	edit dl rm
spi-mem.h	7063	0644	edit dl rm
spi.h	51523	0644	edit dl rm
spi_bitbang.h	1544	0644	edit dl rm
spi_gpio.h	724	0644	edit dl rm
spi_oc_tiny.h	628	0644	edit dl rm
tdo24m.h	210	0644	edit dl rm
tle62x0.h	660	0644	edit dl rm
xilinx_spi.h	627	0644	edit dl rm

Edit: /usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/spi/spi_bitbang.h (1544B)

/* 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;
	u8			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 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; u8 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 void spi_bitbang_stop(struct spi_bitbang *spi); #endif /* __SPI_BITBANG_H */