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24c9d96d | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
fabdbf2f BP |
2 | /*************************************************************************** |
3 | * Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org> * | |
4 | * * | |
5 | * Based on Logitech G13 driver (v0.4) * | |
6 | * Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu> * | |
7 | * * | |
fabdbf2f BP |
8 | ***************************************************************************/ |
9 | ||
10 | #define PICOLCD_NAME "PicoLCD (graphic)" | |
11 | ||
12 | /* Report numbers */ | |
13 | #define REPORT_ERROR_CODE 0x10 /* LCD: IN[16] */ | |
14 | #define ERR_SUCCESS 0x00 | |
15 | #define ERR_PARAMETER_MISSING 0x01 | |
16 | #define ERR_DATA_MISSING 0x02 | |
17 | #define ERR_BLOCK_READ_ONLY 0x03 | |
18 | #define ERR_BLOCK_NOT_ERASABLE 0x04 | |
19 | #define ERR_BLOCK_TOO_BIG 0x05 | |
20 | #define ERR_SECTION_OVERFLOW 0x06 | |
21 | #define ERR_INVALID_CMD_LEN 0x07 | |
22 | #define ERR_INVALID_DATA_LEN 0x08 | |
23 | #define REPORT_KEY_STATE 0x11 /* LCD: IN[2] */ | |
24 | #define REPORT_IR_DATA 0x21 /* LCD: IN[63] */ | |
25 | #define REPORT_EE_DATA 0x32 /* LCD: IN[63] */ | |
26 | #define REPORT_MEMORY 0x41 /* LCD: IN[63] */ | |
27 | #define REPORT_LED_STATE 0x81 /* LCD: OUT[1] */ | |
28 | #define REPORT_BRIGHTNESS 0x91 /* LCD: OUT[1] */ | |
29 | #define REPORT_CONTRAST 0x92 /* LCD: OUT[1] */ | |
30 | #define REPORT_RESET 0x93 /* LCD: OUT[2] */ | |
31 | #define REPORT_LCD_CMD 0x94 /* LCD: OUT[63] */ | |
32 | #define REPORT_LCD_DATA 0x95 /* LCD: OUT[63] */ | |
33 | #define REPORT_LCD_CMD_DATA 0x96 /* LCD: OUT[63] */ | |
34 | #define REPORT_EE_READ 0xa3 /* LCD: OUT[63] */ | |
35 | #define REPORT_EE_WRITE 0xa4 /* LCD: OUT[63] */ | |
36 | #define REPORT_ERASE_MEMORY 0xb2 /* LCD: OUT[2] */ | |
37 | #define REPORT_READ_MEMORY 0xb3 /* LCD: OUT[3] */ | |
38 | #define REPORT_WRITE_MEMORY 0xb4 /* LCD: OUT[63] */ | |
39 | #define REPORT_SPLASH_RESTART 0xc1 /* LCD: OUT[1] */ | |
40 | #define REPORT_EXIT_KEYBOARD 0xef /* LCD: OUT[2] */ | |
41 | #define REPORT_VERSION 0xf1 /* LCD: IN[2],OUT[1] Bootloader: IN[2],OUT[1] */ | |
42 | #define REPORT_BL_ERASE_MEMORY 0xf2 /* Bootloader: IN[36],OUT[4] */ | |
43 | #define REPORT_BL_READ_MEMORY 0xf3 /* Bootloader: IN[36],OUT[4] */ | |
44 | #define REPORT_BL_WRITE_MEMORY 0xf4 /* Bootloader: IN[36],OUT[36] */ | |
45 | #define REPORT_DEVID 0xf5 /* LCD: IN[5], OUT[1] Bootloader: IN[5],OUT[1] */ | |
46 | #define REPORT_SPLASH_SIZE 0xf6 /* LCD: IN[4], OUT[1] */ | |
47 | #define REPORT_HOOK_VERSION 0xf7 /* LCD: IN[2], OUT[1] */ | |
48 | #define REPORT_EXIT_FLASHER 0xff /* Bootloader: OUT[2] */ | |
49 | ||
50 | /* Description of in-progress IO operation, used for operations | |
51 | * that trigger response from device */ | |
52 | struct picolcd_pending { | |
53 | struct hid_report *out_report; | |
54 | struct hid_report *in_report; | |
55 | struct completion ready; | |
56 | int raw_size; | |
57 | u8 raw_data[64]; | |
58 | }; | |
59 | ||
60 | ||
61 | #define PICOLCD_KEYS 17 | |
62 | ||
63 | /* Per device data structure */ | |
64 | struct picolcd_data { | |
65 | struct hid_device *hdev; | |
66 | #ifdef CONFIG_DEBUG_FS | |
67 | struct dentry *debug_reset; | |
68 | struct dentry *debug_eeprom; | |
69 | struct dentry *debug_flash; | |
70 | struct mutex mutex_flash; | |
71 | int addr_sz; | |
72 | #endif | |
73 | u8 version[2]; | |
74 | unsigned short opmode_delay; | |
75 | /* input stuff */ | |
76 | u8 pressed_keys[2]; | |
77 | struct input_dev *input_keys; | |
ae08e324 BP |
78 | #ifdef CONFIG_HID_PICOLCD_CIR |
79 | struct rc_dev *rc_dev; | |
80 | #endif | |
fabdbf2f BP |
81 | unsigned short keycode[PICOLCD_KEYS]; |
82 | ||
83 | #ifdef CONFIG_HID_PICOLCD_FB | |
84 | /* Framebuffer stuff */ | |
fabdbf2f | 85 | struct fb_info *fb_info; |
fabdbf2f BP |
86 | #endif /* CONFIG_HID_PICOLCD_FB */ |
87 | #ifdef CONFIG_HID_PICOLCD_LCD | |
88 | struct lcd_device *lcd; | |
89 | u8 lcd_contrast; | |
90 | #endif /* CONFIG_HID_PICOLCD_LCD */ | |
91 | #ifdef CONFIG_HID_PICOLCD_BACKLIGHT | |
92 | struct backlight_device *backlight; | |
93 | u8 lcd_brightness; | |
94 | u8 lcd_power; | |
95 | #endif /* CONFIG_HID_PICOLCD_BACKLIGHT */ | |
96 | #ifdef CONFIG_HID_PICOLCD_LEDS | |
97 | /* LED stuff */ | |
98 | u8 led_state; | |
99 | struct led_classdev *led[8]; | |
100 | #endif /* CONFIG_HID_PICOLCD_LEDS */ | |
101 | ||
102 | /* Housekeeping stuff */ | |
103 | spinlock_t lock; | |
104 | struct mutex mutex; | |
105 | struct picolcd_pending *pending; | |
106 | int status; | |
107 | #define PICOLCD_BOOTLOADER 1 | |
108 | #define PICOLCD_FAILED 2 | |
ae08e324 | 109 | #define PICOLCD_CIR_SHUN 4 |
fabdbf2f BP |
110 | }; |
111 | ||
16048709 BP |
112 | #ifdef CONFIG_HID_PICOLCD_FB |
113 | struct picolcd_fb_data { | |
114 | /* Framebuffer stuff */ | |
115 | spinlock_t lock; | |
116 | struct picolcd_data *picolcd; | |
117 | u8 update_rate; | |
118 | u8 bpp; | |
119 | u8 force; | |
120 | u8 ready; | |
121 | u8 *vbitmap; /* local copy of what was sent to PicoLCD */ | |
122 | u8 *bitmap; /* framebuffer */ | |
123 | }; | |
124 | #endif /* CONFIG_HID_PICOLCD_FB */ | |
fabdbf2f BP |
125 | |
126 | /* Find a given report */ | |
127 | #define picolcd_in_report(id, dev) picolcd_report(id, dev, HID_INPUT_REPORT) | |
128 | #define picolcd_out_report(id, dev) picolcd_report(id, dev, HID_OUTPUT_REPORT) | |
129 | ||
130 | struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir); | |
131 | ||
132 | #ifdef CONFIG_DEBUG_FS | |
133 | void picolcd_debug_out_report(struct picolcd_data *data, | |
134 | struct hid_device *hdev, struct hid_report *report); | |
d8814272 | 135 | #define hid_hw_request(a, b, c) \ |
fabdbf2f BP |
136 | do { \ |
137 | picolcd_debug_out_report(hid_get_drvdata(a), a, b); \ | |
d8814272 | 138 | hid_hw_request(a, b, c); \ |
fabdbf2f BP |
139 | } while (0) |
140 | ||
141 | void picolcd_debug_raw_event(struct picolcd_data *data, | |
142 | struct hid_device *hdev, struct hid_report *report, | |
143 | u8 *raw_data, int size); | |
144 | ||
145 | void picolcd_init_devfs(struct picolcd_data *data, | |
146 | struct hid_report *eeprom_r, struct hid_report *eeprom_w, | |
147 | struct hid_report *flash_r, struct hid_report *flash_w, | |
148 | struct hid_report *reset); | |
149 | ||
150 | void picolcd_exit_devfs(struct picolcd_data *data); | |
151 | #else | |
e9a7c79b AL |
152 | static inline void picolcd_debug_out_report(struct picolcd_data *data, |
153 | struct hid_device *hdev, struct hid_report *report) | |
154 | { | |
155 | } | |
fabdbf2f BP |
156 | static inline void picolcd_debug_raw_event(struct picolcd_data *data, |
157 | struct hid_device *hdev, struct hid_report *report, | |
158 | u8 *raw_data, int size) | |
159 | { | |
160 | } | |
161 | static inline void picolcd_init_devfs(struct picolcd_data *data, | |
162 | struct hid_report *eeprom_r, struct hid_report *eeprom_w, | |
163 | struct hid_report *flash_r, struct hid_report *flash_w, | |
164 | struct hid_report *reset) | |
165 | { | |
166 | } | |
167 | static inline void picolcd_exit_devfs(struct picolcd_data *data) | |
168 | { | |
169 | } | |
fabdbf2f BP |
170 | #endif /* CONFIG_DEBUG_FS */ |
171 | ||
172 | ||
173 | #ifdef CONFIG_HID_PICOLCD_FB | |
174 | int picolcd_fb_reset(struct picolcd_data *data, int clear); | |
175 | ||
176 | int picolcd_init_framebuffer(struct picolcd_data *data); | |
177 | ||
178 | void picolcd_exit_framebuffer(struct picolcd_data *data); | |
179 | ||
fabdbf2f BP |
180 | void picolcd_fb_refresh(struct picolcd_data *data); |
181 | #define picolcd_fbinfo(d) ((d)->fb_info) | |
182 | #else | |
183 | static inline int picolcd_fb_reset(struct picolcd_data *data, int clear) | |
184 | { | |
185 | return 0; | |
186 | } | |
187 | static inline int picolcd_init_framebuffer(struct picolcd_data *data) | |
188 | { | |
189 | return 0; | |
190 | } | |
191 | static inline void picolcd_exit_framebuffer(struct picolcd_data *data) | |
192 | { | |
193 | } | |
fabdbf2f BP |
194 | static inline void picolcd_fb_refresh(struct picolcd_data *data) |
195 | { | |
196 | } | |
197 | #define picolcd_fbinfo(d) NULL | |
198 | #endif /* CONFIG_HID_PICOLCD_FB */ | |
199 | ||
200 | ||
201 | #ifdef CONFIG_HID_PICOLCD_BACKLIGHT | |
202 | int picolcd_init_backlight(struct picolcd_data *data, | |
203 | struct hid_report *report); | |
204 | ||
205 | void picolcd_exit_backlight(struct picolcd_data *data); | |
206 | ||
207 | int picolcd_resume_backlight(struct picolcd_data *data); | |
208 | ||
209 | void picolcd_suspend_backlight(struct picolcd_data *data); | |
210 | #else | |
211 | static inline int picolcd_init_backlight(struct picolcd_data *data, | |
212 | struct hid_report *report) | |
213 | { | |
214 | return 0; | |
215 | } | |
216 | static inline void picolcd_exit_backlight(struct picolcd_data *data) | |
217 | { | |
218 | } | |
219 | static inline int picolcd_resume_backlight(struct picolcd_data *data) | |
220 | { | |
221 | return 0; | |
222 | } | |
223 | static inline void picolcd_suspend_backlight(struct picolcd_data *data) | |
224 | { | |
225 | } | |
226 | ||
227 | #endif /* CONFIG_HID_PICOLCD_BACKLIGHT */ | |
228 | ||
229 | ||
230 | #ifdef CONFIG_HID_PICOLCD_LCD | |
231 | int picolcd_init_lcd(struct picolcd_data *data, | |
232 | struct hid_report *report); | |
233 | ||
234 | void picolcd_exit_lcd(struct picolcd_data *data); | |
235 | ||
236 | int picolcd_resume_lcd(struct picolcd_data *data); | |
237 | #else | |
238 | static inline int picolcd_init_lcd(struct picolcd_data *data, | |
239 | struct hid_report *report) | |
240 | { | |
241 | return 0; | |
242 | } | |
243 | static inline void picolcd_exit_lcd(struct picolcd_data *data) | |
244 | { | |
245 | } | |
246 | static inline int picolcd_resume_lcd(struct picolcd_data *data) | |
247 | { | |
248 | return 0; | |
249 | } | |
250 | #endif /* CONFIG_HID_PICOLCD_LCD */ | |
251 | ||
252 | ||
253 | #ifdef CONFIG_HID_PICOLCD_LEDS | |
254 | int picolcd_init_leds(struct picolcd_data *data, | |
255 | struct hid_report *report); | |
256 | ||
257 | void picolcd_exit_leds(struct picolcd_data *data); | |
258 | ||
259 | void picolcd_leds_set(struct picolcd_data *data); | |
260 | #else | |
261 | static inline int picolcd_init_leds(struct picolcd_data *data, | |
262 | struct hid_report *report) | |
263 | { | |
264 | return 0; | |
265 | } | |
266 | static inline void picolcd_exit_leds(struct picolcd_data *data) | |
267 | { | |
268 | } | |
269 | static inline void picolcd_leds_set(struct picolcd_data *data) | |
270 | { | |
271 | } | |
272 | #endif /* CONFIG_HID_PICOLCD_LEDS */ | |
273 | ||
274 | ||
275 | #ifdef CONFIG_HID_PICOLCD_CIR | |
276 | int picolcd_raw_cir(struct picolcd_data *data, | |
277 | struct hid_report *report, u8 *raw_data, int size); | |
278 | ||
279 | int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report); | |
280 | ||
281 | void picolcd_exit_cir(struct picolcd_data *data); | |
282 | #else | |
283 | static inline int picolcd_raw_cir(struct picolcd_data *data, | |
284 | struct hid_report *report, u8 *raw_data, int size) | |
285 | { | |
286 | return 1; | |
287 | } | |
288 | static inline int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report) | |
289 | { | |
290 | return 0; | |
291 | } | |
292 | static inline void picolcd_exit_cir(struct picolcd_data *data) | |
293 | { | |
294 | } | |
4e55467e | 295 | #endif /* CONFIG_HID_PICOLCD_CIR */ |
fabdbf2f BP |
296 | |
297 | int picolcd_reset(struct hid_device *hdev); | |
298 | struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev, | |
299 | int report_id, const u8 *raw_data, int size); |