Lines Matching full:dbi
3 * MIPI Display Bus Interface (DBI) LCD controller support
44 * This library provides helpers for MIPI Display Bus Interface (DBI)
54 * There are 3 MIPI DBI implementation types:
104 static bool mipi_dbi_command_is_read(struct mipi_dbi *dbi, u8 cmd) in mipi_dbi_command_is_read() argument
108 if (!dbi->read_commands) in mipi_dbi_command_is_read()
112 if (!dbi->read_commands[i]) in mipi_dbi_command_is_read()
114 if (cmd == dbi->read_commands[i]) in mipi_dbi_command_is_read()
123 * @dbi: MIPI DBI structure
132 int mipi_dbi_command_read(struct mipi_dbi *dbi, u8 cmd, u8 *val) in mipi_dbi_command_read() argument
134 if (!dbi->read_commands) in mipi_dbi_command_read()
137 if (!mipi_dbi_command_is_read(dbi, cmd)) in mipi_dbi_command_read()
140 return mipi_dbi_command_buf(dbi, cmd, val, 1); in mipi_dbi_command_read()
146 * @dbi: MIPI DBI structure
154 int mipi_dbi_command_buf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len) in mipi_dbi_command_buf() argument
164 mutex_lock(&dbi->cmdlock); in mipi_dbi_command_buf()
165 ret = dbi->command(dbi, cmdbuf, data, len); in mipi_dbi_command_buf()
166 mutex_unlock(&dbi->cmdlock); in mipi_dbi_command_buf()
175 int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, const u8 *data, in mipi_dbi_command_stackbuf() argument
185 ret = mipi_dbi_command_buf(dbi, cmd, buf, len); in mipi_dbi_command_stackbuf()
244 struct mipi_dbi *dbi = &dbidev->dbi; in mipi_dbi_set_window_address() local
251 mipi_dbi_command(dbi, MIPI_DCS_SET_COLUMN_ADDRESS, (xs >> 8) & 0xff, in mipi_dbi_set_window_address()
253 mipi_dbi_command(dbi, MIPI_DCS_SET_PAGE_ADDRESS, (ys >> 8) & 0xff, in mipi_dbi_set_window_address()
263 struct mipi_dbi *dbi = &dbidev->dbi; in mipi_dbi_fb_dirty() local
264 bool swap = dbi->swap_bytes; in mipi_dbi_fb_dirty()
273 if (!dbi->dc || !full || swap || in mipi_dbi_fb_dirty()
286 ret = mipi_dbi_command_buf(dbi, MIPI_DCS_WRITE_MEMORY_START, tr, in mipi_dbi_fb_dirty()
294 * mipi_dbi_pipe_mode_valid - MIPI DBI mode-valid helper
298 * This function validates a given display mode against the MIPI DBI's hardware
346 * mipi_dbi_enable_flush - MIPI DBI enable helper
347 * @dbidev: MIPI DBI device structure
388 struct mipi_dbi *dbi = &dbidev->dbi; in mipi_dbi_blank() local
398 mipi_dbi_command_buf(dbi, MIPI_DCS_WRITE_MEMORY_START, in mipi_dbi_blank()
405 * mipi_dbi_pipe_disable - MIPI DBI pipe disable helper
431 * mipi_dbi_pipe_begin_fb_access - MIPI DBI pipe begin-access helper
451 * mipi_dbi_pipe_end_fb_access - MIPI DBI pipe end-access helper
467 * mipi_dbi_pipe_reset_plane - MIPI DBI plane-reset helper
471 * for MIPI DBI planes.
480 * mipi_dbi_pipe_duplicate_plane_state - duplicates MIPI DBI plane state
484 * for MIPI DBI planes.
498 * mipi_dbi_pipe_destroy_plane_state - cleans up MIPI DBI plane state
503 * for MIPI DBI planes.
562 * mipi_dbi_dev_init_with_formats - MIPI DBI device initialization with custom formats
563 * @dbidev: MIPI DBI device structure to initialize
597 if (!dbidev->dbi.command) in mipi_dbi_dev_init_with_formats()
642 * mipi_dbi_dev_init - MIPI DBI device initialization
643 * @dbidev: MIPI DBI device structure to initialize
674 * @dbi: MIPI DBI structure
678 void mipi_dbi_hw_reset(struct mipi_dbi *dbi) in mipi_dbi_hw_reset() argument
680 if (!dbi->reset) in mipi_dbi_hw_reset()
683 gpiod_set_value_cansleep(dbi->reset, 0); in mipi_dbi_hw_reset()
685 gpiod_set_value_cansleep(dbi->reset, 1); in mipi_dbi_hw_reset()
692 * @dbi: MIPI DBI structure
702 bool mipi_dbi_display_is_on(struct mipi_dbi *dbi) in mipi_dbi_display_is_on() argument
706 if (mipi_dbi_command_read(dbi, MIPI_DCS_GET_POWER_MODE, &val)) in mipi_dbi_display_is_on()
725 struct mipi_dbi *dbi = &dbidev->dbi; in mipi_dbi_poweron_reset_conditional() local
746 if (cond && mipi_dbi_display_is_on(dbi)) in mipi_dbi_poweron_reset_conditional()
749 mipi_dbi_hw_reset(dbi); in mipi_dbi_poweron_reset_conditional()
750 ret = mipi_dbi_command(dbi, MIPI_DCS_SOFT_RESET); in mipi_dbi_poweron_reset_conditional()
765 if (dbi->reset) in mipi_dbi_poweron_reset_conditional()
774 * mipi_dbi_poweron_reset - MIPI DBI poweron and reset
775 * @dbidev: MIPI DBI device structure
790 * mipi_dbi_poweron_conditional_reset - MIPI DBI poweron and conditional reset
791 * @dbidev: MIPI DBI device structure
837 * MIPI DBI Type C Option 1
854 static int mipi_dbi_spi1e_transfer(struct mipi_dbi *dbi, int dc, in mipi_dbi_spi1e_transfer() argument
859 size_t chunk, max_chunk = dbi->tx_buf9_len; in mipi_dbi_spi1e_transfer()
860 struct spi_device *spi = dbi->spi; in mipi_dbi_spi1e_transfer()
862 .tx_buf = dbi->tx_buf9, in mipi_dbi_spi1e_transfer()
882 dst = dbi->tx_buf9; in mipi_dbi_spi1e_transfer()
902 dst = dbi->tx_buf9; in mipi_dbi_spi1e_transfer()
972 static int mipi_dbi_spi1_transfer(struct mipi_dbi *dbi, int dc, in mipi_dbi_spi1_transfer() argument
976 struct spi_device *spi = dbi->spi; in mipi_dbi_spi1_transfer()
988 return mipi_dbi_spi1e_transfer(dbi, dc, buf, len, bpw); in mipi_dbi_spi1_transfer()
991 max_chunk = dbi->tx_buf9_len; in mipi_dbi_spi1_transfer()
992 dst16 = dbi->tx_buf9; in mipi_dbi_spi1_transfer()
1035 static int mipi_dbi_typec1_command_read(struct mipi_dbi *dbi, u8 *cmd, in mipi_dbi_typec1_command_read() argument
1038 struct spi_device *spi = dbi->spi; in mipi_dbi_typec1_command_read()
1045 .tx_buf = dbi->tx_buf9, in mipi_dbi_typec1_command_read()
1076 dst16 = dbi->tx_buf9; in mipi_dbi_typec1_command_read()
1088 static int mipi_dbi_typec1_command(struct mipi_dbi *dbi, u8 *cmd, in mipi_dbi_typec1_command() argument
1094 if (mipi_dbi_command_is_read(dbi, *cmd)) in mipi_dbi_typec1_command()
1095 return mipi_dbi_typec1_command_read(dbi, cmd, parameters, num); in mipi_dbi_typec1_command()
1099 ret = mipi_dbi_spi1_transfer(dbi, 0, cmd, 1, 8); in mipi_dbi_typec1_command()
1103 return mipi_dbi_spi1_transfer(dbi, 1, parameters, num, bpw); in mipi_dbi_typec1_command()
1106 /* MIPI DBI Type C Option 3 */
1108 static int mipi_dbi_typec3_command_read(struct mipi_dbi *dbi, u8 *cmd, in mipi_dbi_typec3_command_read() argument
1111 struct spi_device *spi = dbi->spi; in mipi_dbi_typec3_command_read()
1150 gpiod_set_value_cansleep(dbi->dc, 0); in mipi_dbi_typec3_command_read()
1175 static int mipi_dbi_typec3_command(struct mipi_dbi *dbi, u8 *cmd, in mipi_dbi_typec3_command() argument
1178 struct spi_device *spi = dbi->spi; in mipi_dbi_typec3_command()
1183 if (mipi_dbi_command_is_read(dbi, *cmd)) in mipi_dbi_typec3_command()
1184 return mipi_dbi_typec3_command_read(dbi, cmd, par, num); in mipi_dbi_typec3_command()
1189 gpiod_set_value_cansleep(dbi->dc, 0); in mipi_dbi_typec3_command()
1196 if (*cmd == MIPI_DCS_WRITE_MEMORY_START && !dbi->swap_bytes) in mipi_dbi_typec3_command()
1200 gpiod_set_value_cansleep(dbi->dc, 1); in mipi_dbi_typec3_command()
1209 * mipi_dbi_spi_init - Initialize MIPI DBI SPI interface
1211 * @dbi: MIPI DBI structure to initialize
1230 int mipi_dbi_spi_init(struct spi_device *spi, struct mipi_dbi *dbi, in mipi_dbi_spi_init() argument
1254 dbi->spi = spi; in mipi_dbi_spi_init()
1255 dbi->read_commands = mipi_dbi_dcs_read_commands; in mipi_dbi_spi_init()
1258 dbi->command = mipi_dbi_typec3_command; in mipi_dbi_spi_init()
1259 dbi->dc = dc; in mipi_dbi_spi_init()
1261 dbi->swap_bytes = true; in mipi_dbi_spi_init()
1263 dbi->command = mipi_dbi_typec1_command; in mipi_dbi_spi_init()
1264 dbi->tx_buf9_len = SZ_16K; in mipi_dbi_spi_init()
1265 dbi->tx_buf9 = devm_kmalloc(dev, dbi->tx_buf9_len, GFP_KERNEL); in mipi_dbi_spi_init()
1266 if (!dbi->tx_buf9) in mipi_dbi_spi_init()
1270 mutex_init(&dbi->cmdlock); in mipi_dbi_spi_init()
1384 ret = mipi_dbi_command_buf(&dbidev->dbi, cmd, parameters, i); in mipi_dbi_debugfs_command_write()
1397 struct mipi_dbi *dbi = &dbidev->dbi; in mipi_dbi_debugfs_command_show() local
1406 if (!mipi_dbi_command_is_read(dbi, cmd)) in mipi_dbi_debugfs_command_show()
1426 ret = mipi_dbi_command_buf(dbi, cmd, val, len); in mipi_dbi_debugfs_command_show()
1469 if (dbidev->dbi.read_commands) in mipi_dbi_debugfs_init()