51 	u32		(*txrx_word)(struct spi_device *spi, unsigned nsecs,
55 						struct spi_device *spi,
62 	struct spi_device	*spi,  in bitbang_txrx_8()  argument
63 	u32			(*txrx_word)(struct spi_device *spi,  in bitbang_txrx_8()  argument
79 		word = txrx_word(spi, ns, word, bits);  in bitbang_txrx_8()
88 	struct spi_device	*spi,  in bitbang_txrx_16()  argument
89 	u32			(*txrx_word)(struct spi_device *spi,  in bitbang_txrx_16()  argument
105 		word = txrx_word(spi, ns, word, bits);  in bitbang_txrx_16()
114 	struct spi_device	*spi,  in bitbang_txrx_32()  argument
115 	u32			(*txrx_word)(struct spi_device *spi,  in bitbang_txrx_32()  argument
131 		word = txrx_word(spi, ns, word, bits);  in bitbang_txrx_32()
139 int spi_bitbang_setup_transfer(struct spi_device *spi, struct spi_transfer *t)  in spi_bitbang_setup_transfer()  argument
141 	struct spi_bitbang_cs	*cs = spi->controller_state;  in spi_bitbang_setup_transfer()
155 		bits_per_word = spi->bits_per_word;  in spi_bitbang_setup_transfer()
167 		hz = spi->max_speed_hz;  in spi_bitbang_setup_transfer()
181 int spi_bitbang_setup(struct spi_device *spi)  in spi_bitbang_setup()  argument
183 	struct spi_bitbang_cs	*cs = spi->controller_state;  in spi_bitbang_setup()
186 	bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_setup()
192 		spi->controller_state = cs;  in spi_bitbang_setup()
196 	cs->txrx_word = bitbang->txrx_word[spi->mode & (SPI_CPOL|SPI_CPHA)];  in spi_bitbang_setup()
201 		int retval = bitbang->setup_transfer(spi, NULL);  in spi_bitbang_setup()
206 	dev_dbg(&spi->dev, "%s, %u nsec/bit\n", __func__, 2 * cs->nsecs);  in spi_bitbang_setup()
216 		bitbang->chipselect(spi, BITBANG_CS_INACTIVE);  in spi_bitbang_setup()
228 void spi_bitbang_cleanup(struct spi_device *spi)  in spi_bitbang_cleanup()  argument
230 	kfree(spi->controller_state);  in spi_bitbang_cleanup()
234 static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t)  in spi_bitbang_bufs()  argument
236 	struct spi_bitbang_cs	*cs = spi->controller_state;  in spi_bitbang_bufs()
239 	return cs->txrx_bufs(spi, cs->txrx_word, nsecs, t);  in spi_bitbang_bufs()
256 static int spi_bitbang_prepare_hardware(struct spi_master *spi)  in spi_bitbang_prepare_hardware()  argument
260 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_prepare_hardware()
270 				    struct spi_device *spi,  in spi_bitbang_transfer_one()  argument
277 		status = bitbang->setup_transfer(spi, transfer);  in spi_bitbang_transfer_one()
283 		status = bitbang->txrx_bufs(spi, transfer);  in spi_bitbang_transfer_one()
296 static int spi_bitbang_unprepare_hardware(struct spi_master *spi)  in spi_bitbang_unprepare_hardware()  argument
300 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_unprepare_hardware()
309 static void spi_bitbang_set_cs(struct spi_device *spi, bool enable)  in spi_bitbang_set_cs()  argument
311 	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_set_cs()
317 	enable = (!!(spi->mode & SPI_CS_HIGH) == enable);  in spi_bitbang_set_cs()
320 	bitbang->chipselect(spi, enable ? BITBANG_CS_ACTIVE :  in spi_bitbang_set_cs()