25 static void bitbang_spi_set_cs(const struct bitbang_spi_master * const master, int val, void *spi_d…  in bitbang_spi_set_cs()  argument
27 	master->set_cs(val, spi_data);  in bitbang_spi_set_cs()
30 static void bitbang_spi_set_sck(const struct bitbang_spi_master * const master, int val, void *spi_…  in bitbang_spi_set_sck()  argument
32 	master->set_sck(val, spi_data);  in bitbang_spi_set_sck()
35 static void bitbang_spi_request_bus(const struct bitbang_spi_master * const master, void *spi_data)  in bitbang_spi_request_bus()  argument
37 	if (master->request_bus)  in bitbang_spi_request_bus()
38 		master->request_bus(spi_data);  in bitbang_spi_request_bus()
41 static void bitbang_spi_release_bus(const struct bitbang_spi_master * const master, void *spi_data)  in bitbang_spi_release_bus()  argument
43 	if (master->release_bus)  in bitbang_spi_release_bus()
44 		master->release_bus(spi_data);  in bitbang_spi_release_bus()
47 static void bitbang_spi_set_sck_set_mosi(const struct bitbang_spi_master * const master, int sck, i…  in bitbang_spi_set_sck_set_mosi()  argument
50 	if (master->set_sck_set_mosi) {  in bitbang_spi_set_sck_set_mosi()
51 		master->set_sck_set_mosi(sck, mosi, spi_data);  in bitbang_spi_set_sck_set_mosi()
55 	master->set_sck(sck, spi_data);  in bitbang_spi_set_sck_set_mosi()
56 	master->set_mosi(mosi, spi_data);  in bitbang_spi_set_sck_set_mosi()
59 static int bitbang_spi_set_sck_get_miso(const struct bitbang_spi_master * const master, int sck,  in bitbang_spi_set_sck_get_miso()  argument
62 	if (master->set_sck_get_miso)  in bitbang_spi_set_sck_get_miso()
63 		return master->set_sck_get_miso(sck, spi_data);  in bitbang_spi_set_sck_get_miso()
65 	master->set_sck(sck, spi_data);  in bitbang_spi_set_sck_get_miso()
66 	return master->get_miso(spi_data);  in bitbang_spi_set_sck_get_miso()
69 static uint8_t bitbang_spi_read_byte(const struct bitbang_spi_master *master, void *spi_data)  in bitbang_spi_read_byte()  argument
76 			bitbang_spi_set_sck_set_mosi(master, 0, 0, spi_data);  in bitbang_spi_read_byte()
78 			bitbang_spi_set_sck(master, 0, spi_data);  in bitbang_spi_read_byte()
79 		default_delay(master->half_period);  in bitbang_spi_read_byte()
81 		ret |= bitbang_spi_set_sck_get_miso(master, 1, spi_data);  in bitbang_spi_read_byte()
82 		default_delay(master->half_period);  in bitbang_spi_read_byte()
87 static void bitbang_spi_write_byte(const struct bitbang_spi_master *master, uint8_t val, void *spi_…  in bitbang_spi_write_byte()  argument
92 		bitbang_spi_set_sck_set_mosi(master, 0, (val >> i) & 1, spi_data);  in bitbang_spi_write_byte()
93 		default_delay(master->half_period);  in bitbang_spi_write_byte()
94 		bitbang_spi_set_sck(master, 1, spi_data);  in bitbang_spi_write_byte()
95 		default_delay(master->half_period);  in bitbang_spi_write_byte()
100 	const struct bitbang_spi_master *master;  member
111 	const struct bitbang_spi_master *master = data->master;  in bitbang_spi_send_command()  local
117 	bitbang_spi_request_bus(master, data->spi_data);  in bitbang_spi_send_command()
118 	bitbang_spi_set_cs(master, 0, data->spi_data);  in bitbang_spi_send_command()
120 		bitbang_spi_write_byte(master, writearr[i], data->spi_data);  in bitbang_spi_send_command()
122 		readarr[i] = bitbang_spi_read_byte(master, data->spi_data);  in bitbang_spi_send_command()
124 	bitbang_spi_set_sck(master, 0, data->spi_data);  in bitbang_spi_send_command()
125 	default_delay(master->half_period);  in bitbang_spi_send_command()
126 	bitbang_spi_set_cs(master, 1, data->spi_data);  in bitbang_spi_send_command()
127 	default_delay(master->half_period);  in bitbang_spi_send_command()
129 	bitbang_spi_release_bus(master, data->spi_data);  in bitbang_spi_send_command()
151 int register_spi_bitbang_master(const struct bitbang_spi_master *master, void *spi_data)  in register_spi_bitbang_master()  argument
155 	if (!master || !master->set_cs ||  in register_spi_bitbang_master()
156 	    !master->set_sck || !master->set_mosi || !master->get_miso ||  in register_spi_bitbang_master()
157 	    (master->request_bus && !master->release_bus) ||  in register_spi_bitbang_master()
158 	    (!master->request_bus && master->release_bus)) {  in register_spi_bitbang_master()
159 		msg_perr("Incomplete SPI bitbang master setting!\n"  in register_spi_bitbang_master()
168 	data->master = master;  in register_spi_bitbang_master()
175 	bitbang_spi_request_bus(master, spi_data);  in register_spi_bitbang_master()
176 	bitbang_spi_set_cs(master, 1, spi_data);  in register_spi_bitbang_master()
177 	bitbang_spi_set_sck_set_mosi(master, 0, 0, spi_data);  in register_spi_bitbang_master()
181 	bitbang_spi_release_bus(master, spi_data);  in register_spi_bitbang_master()