42 	u32		(*txrx_word)(struct spi_device *spi, unsigned nsecs,
46 						struct spi_device *spi,
55 	struct spi_device	*spi,  in bitbang_txrx_8()  argument
56 	u32			(*txrx_word)(struct spi_device *spi,  in bitbang_txrx_8()  argument
75 		word = txrx_word(spi, ns, word, bits, flags);  in bitbang_txrx_8()
84 	struct spi_device	*spi,  in bitbang_txrx_16()  argument
85 	u32			(*txrx_word)(struct spi_device *spi,  in bitbang_txrx_16()  argument
104 		word = txrx_word(spi, ns, word, bits, flags);  in bitbang_txrx_16()
113 	struct spi_device	*spi,  in bitbang_txrx_32()  argument
114 	u32			(*txrx_word)(struct spi_device *spi,  in bitbang_txrx_32()  argument
133 		word = txrx_word(spi, ns, word, bits, flags);  in bitbang_txrx_32()
141 int spi_bitbang_setup_transfer(struct spi_device *spi, struct spi_transfer *t)  in spi_bitbang_setup_transfer()  argument
143 	struct spi_bitbang_cs	*cs = spi->controller_state;  in spi_bitbang_setup_transfer()
157 		bits_per_word = spi->bits_per_word;  in spi_bitbang_setup_transfer()
169 		hz = spi->max_speed_hz;  in spi_bitbang_setup_transfer()
183 int spi_bitbang_setup(struct spi_device *spi)  in spi_bitbang_setup()  argument
185 	struct spi_bitbang_cs	*cs = spi->controller_state;  in spi_bitbang_setup()
190 	bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_setup()
196 		spi->controller_state = cs;  in spi_bitbang_setup()
201 	cs->txrx_word = bitbang->txrx_word[spi->mode & (SPI_CPOL|SPI_CPHA)];  in spi_bitbang_setup()
208 		retval = bitbang->setup_transfer(spi, NULL);  in spi_bitbang_setup()
213 	dev_dbg(&spi->dev, "%s, %u nsec/bit\n", __func__, 2 * cs->nsecs);  in spi_bitbang_setup()
227 void spi_bitbang_cleanup(struct spi_device *spi)  in spi_bitbang_cleanup()  argument
229 	kfree(spi->controller_state);  in spi_bitbang_cleanup()
233 static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t)  in spi_bitbang_bufs()  argument
235 	struct spi_bitbang_cs	*cs = spi->controller_state;  in spi_bitbang_bufs()
239 	bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_bufs()
243 		err = bitbang->set_line_direction(spi, !!(t->tx_buf));  in spi_bitbang_bufs()
248 	if (spi->mode & SPI_3WIRE) {  in spi_bitbang_bufs()
252 		return cs->txrx_bufs(spi, cs->txrx_word, nsecs, t, flags);  in spi_bitbang_bufs()
254 	return cs->txrx_bufs(spi, cs->txrx_word, nsecs, t, 0);  in spi_bitbang_bufs()
271 static int spi_bitbang_prepare_hardware(struct spi_master *spi)  in spi_bitbang_prepare_hardware()  argument
275 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_prepare_hardware()
285 				    struct spi_device *spi,  in spi_bitbang_transfer_one()  argument
292 		status = bitbang->setup_transfer(spi, transfer);  in spi_bitbang_transfer_one()
298 		status = bitbang->txrx_bufs(spi, transfer);  in spi_bitbang_transfer_one()
311 static int spi_bitbang_unprepare_hardware(struct spi_master *spi)  in spi_bitbang_unprepare_hardware()  argument
315 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_unprepare_hardware()
324 static void spi_bitbang_set_cs(struct spi_device *spi, bool enable)  in spi_bitbang_set_cs()  argument
326 	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_set_cs()
332 	enable = (!!(spi->mode & SPI_CS_HIGH) == enable);  in spi_bitbang_set_cs()
335 	bitbang->chipselect(spi, enable ? BITBANG_CS_ACTIVE :  in spi_bitbang_set_cs()