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12#ifndef __DRM_MIPI_DSI_H__
13#define __DRM_MIPI_DSI_H__
14
15#include <linux/device.h>
16
17struct mipi_dsi_host;
18struct mipi_dsi_device;
19
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21#define MIPI_DSI_MSG_REQ_ACK BIT(0)
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23#define MIPI_DSI_MSG_USE_LPM BIT(1)
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35struct mipi_dsi_msg {
36 u8 channel;
37 u8 type;
38 u16 flags;
39
40 size_t tx_len;
41 const void *tx_buf;
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43 size_t rx_len;
44 void *rx_buf;
45};
46
47bool mipi_dsi_packet_format_is_short(u8 type);
48bool mipi_dsi_packet_format_is_long(u8 type);
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58struct mipi_dsi_packet {
59 size_t size;
60 u8 header[4];
61 size_t payload_length;
62 const u8 *payload;
63};
64
65int mipi_dsi_create_packet(struct mipi_dsi_packet *packet,
66 const struct mipi_dsi_msg *msg);
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86struct mipi_dsi_host_ops {
87 int (*attach)(struct mipi_dsi_host *host,
88 struct mipi_dsi_device *dsi);
89 int (*detach)(struct mipi_dsi_host *host,
90 struct mipi_dsi_device *dsi);
91 ssize_t (*transfer)(struct mipi_dsi_host *host,
92 const struct mipi_dsi_msg *msg);
93};
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100struct mipi_dsi_host {
101 struct device *dev;
102 const struct mipi_dsi_host_ops *ops;
103};
104
105int mipi_dsi_host_register(struct mipi_dsi_host *host);
106void mipi_dsi_host_unregister(struct mipi_dsi_host *host);
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111#define MIPI_DSI_MODE_VIDEO BIT(0)
112
113#define MIPI_DSI_MODE_VIDEO_BURST BIT(1)
114
115#define MIPI_DSI_MODE_VIDEO_SYNC_PULSE BIT(2)
116
117#define MIPI_DSI_MODE_VIDEO_AUTO_VERT BIT(3)
118
119#define MIPI_DSI_MODE_VIDEO_HSE BIT(4)
120
121#define MIPI_DSI_MODE_VIDEO_HFP BIT(5)
122
123#define MIPI_DSI_MODE_VIDEO_HBP BIT(6)
124
125#define MIPI_DSI_MODE_VIDEO_HSA BIT(7)
126
127#define MIPI_DSI_MODE_VSYNC_FLUSH BIT(8)
128
129#define MIPI_DSI_MODE_EOT_PACKET BIT(9)
130
131#define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10)
132
133#define MIPI_DSI_MODE_LPM BIT(11)
134
135enum mipi_dsi_pixel_format {
136 MIPI_DSI_FMT_RGB888,
137 MIPI_DSI_FMT_RGB666,
138 MIPI_DSI_FMT_RGB666_PACKED,
139 MIPI_DSI_FMT_RGB565,
140};
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151struct mipi_dsi_device {
152 struct mipi_dsi_host *host;
153 struct device dev;
154
155 unsigned int channel;
156 unsigned int lanes;
157 enum mipi_dsi_pixel_format format;
158 unsigned long mode_flags;
159};
160
161static inline struct mipi_dsi_device *to_mipi_dsi_device(struct device *dev)
162{
163 return container_of(dev, struct mipi_dsi_device, dev);
164}
165
166struct mipi_dsi_device *of_find_mipi_dsi_device_by_node(struct device_node *np);
167int mipi_dsi_attach(struct mipi_dsi_device *dsi);
168int mipi_dsi_detach(struct mipi_dsi_device *dsi);
169int mipi_dsi_set_maximum_return_packet_size(struct mipi_dsi_device *dsi,
170 u16 value);
171
172ssize_t mipi_dsi_generic_write(struct mipi_dsi_device *dsi, const void *payload,
173 size_t size);
174ssize_t mipi_dsi_generic_read(struct mipi_dsi_device *dsi, const void *params,
175 size_t num_params, void *data, size_t size);
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184enum mipi_dsi_dcs_tear_mode {
185 MIPI_DSI_DCS_TEAR_MODE_VBLANK,
186 MIPI_DSI_DCS_TEAR_MODE_VHBLANK,
187};
188
189#define MIPI_DSI_DCS_POWER_MODE_DISPLAY (1 << 2)
190#define MIPI_DSI_DCS_POWER_MODE_NORMAL (1 << 3)
191#define MIPI_DSI_DCS_POWER_MODE_SLEEP (1 << 4)
192#define MIPI_DSI_DCS_POWER_MODE_PARTIAL (1 << 5)
193#define MIPI_DSI_DCS_POWER_MODE_IDLE (1 << 6)
194
195ssize_t mipi_dsi_dcs_write_buffer(struct mipi_dsi_device *dsi,
196 const void *data, size_t len);
197ssize_t mipi_dsi_dcs_write(struct mipi_dsi_device *dsi, u8 cmd,
198 const void *data, size_t len);
199ssize_t mipi_dsi_dcs_read(struct mipi_dsi_device *dsi, u8 cmd, void *data,
200 size_t len);
201int mipi_dsi_dcs_nop(struct mipi_dsi_device *dsi);
202int mipi_dsi_dcs_soft_reset(struct mipi_dsi_device *dsi);
203int mipi_dsi_dcs_get_power_mode(struct mipi_dsi_device *dsi, u8 *mode);
204int mipi_dsi_dcs_get_pixel_format(struct mipi_dsi_device *dsi, u8 *format);
205int mipi_dsi_dcs_enter_sleep_mode(struct mipi_dsi_device *dsi);
206int mipi_dsi_dcs_exit_sleep_mode(struct mipi_dsi_device *dsi);
207int mipi_dsi_dcs_set_display_off(struct mipi_dsi_device *dsi);
208int mipi_dsi_dcs_set_display_on(struct mipi_dsi_device *dsi);
209int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
210 u16 end);
211int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
212 u16 end);
213int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
214int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
215 enum mipi_dsi_dcs_tear_mode mode);
216int mipi_dsi_dcs_set_pixel_format(struct mipi_dsi_device *dsi, u8 format);
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225struct mipi_dsi_driver {
226 struct device_driver driver;
227 int(*probe)(struct mipi_dsi_device *dsi);
228 int(*remove)(struct mipi_dsi_device *dsi);
229 void (*shutdown)(struct mipi_dsi_device *dsi);
230};
231
232static inline struct mipi_dsi_driver *
233to_mipi_dsi_driver(struct device_driver *driver)
234{
235 return container_of(driver, struct mipi_dsi_driver, driver);
236}
237
238static inline void *mipi_dsi_get_drvdata(const struct mipi_dsi_device *dsi)
239{
240 return dev_get_drvdata(&dsi->dev);
241}
242
243static inline void mipi_dsi_set_drvdata(struct mipi_dsi_device *dsi, void *data)
244{
245 dev_set_drvdata(&dsi->dev, data);
246}
247
248int mipi_dsi_driver_register_full(struct mipi_dsi_driver *driver,
249 struct module *owner);
250void mipi_dsi_driver_unregister(struct mipi_dsi_driver *driver);
251
252#define mipi_dsi_driver_register(driver) \
253 mipi_dsi_driver_register_full(driver, THIS_MODULE)
254
255#define module_mipi_dsi_driver(__mipi_dsi_driver) \
256 module_driver(__mipi_dsi_driver, mipi_dsi_driver_register, \
257 mipi_dsi_driver_unregister)
258
259#endif
260