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hid-picolcd.h
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1 /***************************************************************************
2  * Copyright (C) 2010-2012 by Bruno PrĂ©mont <[email protected]> *
3  * *
4  * Based on Logitech G13 driver (v0.4) *
5  * Copyright (C) 2009 by Rick L. Vinyard, Jr. <[email protected]> *
6  * *
7  * This program is free software: you can redistribute it and/or modify *
8  * it under the terms of the GNU General Public License as published by *
9  * the Free Software Foundation, version 2 of the License. *
10  * *
11  * This driver is distributed in the hope that it will be useful, but *
12  * WITHOUT ANY WARRANTY; without even the implied warranty of *
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
14  * General Public License for more details. *
15  * *
16  * You should have received a copy of the GNU General Public License *
17  * along with this software. If not see <http://www.gnu.org/licenses/>. *
18  ***************************************************************************/
19 
20 #define PICOLCD_NAME "PicoLCD (graphic)"
21 
22 /* Report numbers */
23 #define REPORT_ERROR_CODE 0x10 /* LCD: IN[16] */
24 #define ERR_SUCCESS 0x00
25 #define ERR_PARAMETER_MISSING 0x01
26 #define ERR_DATA_MISSING 0x02
27 #define ERR_BLOCK_READ_ONLY 0x03
28 #define ERR_BLOCK_NOT_ERASABLE 0x04
29 #define ERR_BLOCK_TOO_BIG 0x05
30 #define ERR_SECTION_OVERFLOW 0x06
31 #define ERR_INVALID_CMD_LEN 0x07
32 #define ERR_INVALID_DATA_LEN 0x08
33 #define REPORT_KEY_STATE 0x11 /* LCD: IN[2] */
34 #define REPORT_IR_DATA 0x21 /* LCD: IN[63] */
35 #define REPORT_EE_DATA 0x32 /* LCD: IN[63] */
36 #define REPORT_MEMORY 0x41 /* LCD: IN[63] */
37 #define REPORT_LED_STATE 0x81 /* LCD: OUT[1] */
38 #define REPORT_BRIGHTNESS 0x91 /* LCD: OUT[1] */
39 #define REPORT_CONTRAST 0x92 /* LCD: OUT[1] */
40 #define REPORT_RESET 0x93 /* LCD: OUT[2] */
41 #define REPORT_LCD_CMD 0x94 /* LCD: OUT[63] */
42 #define REPORT_LCD_DATA 0x95 /* LCD: OUT[63] */
43 #define REPORT_LCD_CMD_DATA 0x96 /* LCD: OUT[63] */
44 #define REPORT_EE_READ 0xa3 /* LCD: OUT[63] */
45 #define REPORT_EE_WRITE 0xa4 /* LCD: OUT[63] */
46 #define REPORT_ERASE_MEMORY 0xb2 /* LCD: OUT[2] */
47 #define REPORT_READ_MEMORY 0xb3 /* LCD: OUT[3] */
48 #define REPORT_WRITE_MEMORY 0xb4 /* LCD: OUT[63] */
49 #define REPORT_SPLASH_RESTART 0xc1 /* LCD: OUT[1] */
50 #define REPORT_EXIT_KEYBOARD 0xef /* LCD: OUT[2] */
51 #define REPORT_VERSION 0xf1 /* LCD: IN[2],OUT[1] Bootloader: IN[2],OUT[1] */
52 #define REPORT_BL_ERASE_MEMORY 0xf2 /* Bootloader: IN[36],OUT[4] */
53 #define REPORT_BL_READ_MEMORY 0xf3 /* Bootloader: IN[36],OUT[4] */
54 #define REPORT_BL_WRITE_MEMORY 0xf4 /* Bootloader: IN[36],OUT[36] */
55 #define REPORT_DEVID 0xf5 /* LCD: IN[5], OUT[1] Bootloader: IN[5],OUT[1] */
56 #define REPORT_SPLASH_SIZE 0xf6 /* LCD: IN[4], OUT[1] */
57 #define REPORT_HOOK_VERSION 0xf7 /* LCD: IN[2], OUT[1] */
58 #define REPORT_EXIT_FLASHER 0xff /* Bootloader: OUT[2] */
59 
60 /* Description of in-progress IO operation, used for operations
61  * that trigger response from device */
65  struct completion ready;
66  int raw_size;
67  u8 raw_data[64];
68 };
69 
70 
71 #define PICOLCD_KEYS 17
72 
73 /* Per device data structure */
74 struct picolcd_data {
75  struct hid_device *hdev;
76 #ifdef CONFIG_DEBUG_FS
77  struct dentry *debug_reset;
78  struct dentry *debug_eeprom;
79  struct dentry *debug_flash;
80  struct mutex mutex_flash;
81  int addr_sz;
82 #endif
83  u8 version[2];
84  unsigned short opmode_delay;
85  /* input stuff */
87  struct input_dev *input_keys;
88 #ifdef CONFIG_HID_PICOLCD_CIR
89  struct rc_dev *rc_dev;
90 #endif
91  unsigned short keycode[PICOLCD_KEYS];
92 
93 #ifdef CONFIG_HID_PICOLCD_FB
94  /* Framebuffer stuff */
95  struct fb_info *fb_info;
96 #endif /* CONFIG_HID_PICOLCD_FB */
97 #ifdef CONFIG_HID_PICOLCD_LCD
98  struct lcd_device *lcd;
99  u8 lcd_contrast;
100 #endif /* CONFIG_HID_PICOLCD_LCD */
101 #ifdef CONFIG_HID_PICOLCD_BACKLIGHT
102  struct backlight_device *backlight;
103  u8 lcd_brightness;
104  u8 lcd_power;
105 #endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
106 #ifdef CONFIG_HID_PICOLCD_LEDS
107  /* LED stuff */
108  u8 led_state;
109  struct led_classdev *led[8];
110 #endif /* CONFIG_HID_PICOLCD_LEDS */
111 
112  /* Housekeeping stuff */
114  struct mutex mutex;
116  int status;
117 #define PICOLCD_BOOTLOADER 1
118 #define PICOLCD_FAILED 2
119 #define PICOLCD_CIR_SHUN 4
120 };
121 
122 #ifdef CONFIG_HID_PICOLCD_FB
123 struct picolcd_fb_data {
124  /* Framebuffer stuff */
126  struct picolcd_data *picolcd;
127  u8 update_rate;
128  u8 bpp;
129  u8 force;
130  u8 ready;
131  u8 *vbitmap; /* local copy of what was sent to PicoLCD */
132  u8 *bitmap; /* framebuffer */
133 };
134 #endif /* CONFIG_HID_PICOLCD_FB */
135 
136 /* Find a given report */
137 #define picolcd_in_report(id, dev) picolcd_report(id, dev, HID_INPUT_REPORT)
138 #define picolcd_out_report(id, dev) picolcd_report(id, dev, HID_OUTPUT_REPORT)
139 
140 struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir);
141 
142 #ifdef CONFIG_DEBUG_FS
144  struct hid_device *hdev, struct hid_report *report);
145 #define usbhid_submit_report(a, b, c) \
146  do { \
147  picolcd_debug_out_report(hid_get_drvdata(a), a, b); \
148  usbhid_submit_report(a, b, c); \
149  } while (0)
150 
152  struct hid_device *hdev, struct hid_report *report,
153  u8 *raw_data, int size);
154 
156  struct hid_report *eeprom_r, struct hid_report *eeprom_w,
157  struct hid_report *flash_r, struct hid_report *flash_w,
158  struct hid_report *reset);
159 
160 void picolcd_exit_devfs(struct picolcd_data *data);
161 #else
162 static inline void picolcd_debug_out_report(struct picolcd_data *data,
163  struct hid_device *hdev, struct hid_report *report)
164 {
165 }
166 static inline void picolcd_debug_raw_event(struct picolcd_data *data,
167  struct hid_device *hdev, struct hid_report *report,
168  u8 *raw_data, int size)
169 {
170 }
171 static inline void picolcd_init_devfs(struct picolcd_data *data,
172  struct hid_report *eeprom_r, struct hid_report *eeprom_w,
173  struct hid_report *flash_r, struct hid_report *flash_w,
174  struct hid_report *reset)
175 {
176 }
177 static inline void picolcd_exit_devfs(struct picolcd_data *data)
178 {
179 }
180 #endif /* CONFIG_DEBUG_FS */
181 
182 
183 #ifdef CONFIG_HID_PICOLCD_FB
184 int picolcd_fb_reset(struct picolcd_data *data, int clear);
185 
187 
189 
190 void picolcd_fb_refresh(struct picolcd_data *data);
191 #define picolcd_fbinfo(d) ((d)->fb_info)
192 #else
193 static inline int picolcd_fb_reset(struct picolcd_data *data, int clear)
194 {
195  return 0;
196 }
197 static inline int picolcd_init_framebuffer(struct picolcd_data *data)
198 {
199  return 0;
200 }
201 static inline void picolcd_exit_framebuffer(struct picolcd_data *data)
202 {
203 }
204 static inline void picolcd_fb_refresh(struct picolcd_data *data)
205 {
206 }
207 #define picolcd_fbinfo(d) NULL
208 #endif /* CONFIG_HID_PICOLCD_FB */
209 
210 
211 #ifdef CONFIG_HID_PICOLCD_BACKLIGHT
213  struct hid_report *report);
214 
216 
218 
219 void picolcd_suspend_backlight(struct picolcd_data *data);
220 #else
221 static inline int picolcd_init_backlight(struct picolcd_data *data,
222  struct hid_report *report)
223 {
224  return 0;
225 }
226 static inline void picolcd_exit_backlight(struct picolcd_data *data)
227 {
228 }
229 static inline int picolcd_resume_backlight(struct picolcd_data *data)
230 {
231  return 0;
232 }
233 static inline void picolcd_suspend_backlight(struct picolcd_data *data)
234 {
235 }
236 
237 #endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
238 
239 
240 #ifdef CONFIG_HID_PICOLCD_LCD
242  struct hid_report *report);
243 
244 void picolcd_exit_lcd(struct picolcd_data *data);
245 
247 #else
248 static inline int picolcd_init_lcd(struct picolcd_data *data,
249  struct hid_report *report)
250 {
251  return 0;
252 }
253 static inline void picolcd_exit_lcd(struct picolcd_data *data)
254 {
255 }
256 static inline int picolcd_resume_lcd(struct picolcd_data *data)
257 {
258  return 0;
259 }
260 #endif /* CONFIG_HID_PICOLCD_LCD */
261 
262 
263 #ifdef CONFIG_HID_PICOLCD_LEDS
265  struct hid_report *report);
266 
267 void picolcd_exit_leds(struct picolcd_data *data);
268 
269 void picolcd_leds_set(struct picolcd_data *data);
270 #else
271 static inline int picolcd_init_leds(struct picolcd_data *data,
272  struct hid_report *report)
273 {
274  return 0;
275 }
276 static inline void picolcd_exit_leds(struct picolcd_data *data)
277 {
278 }
279 static inline void picolcd_leds_set(struct picolcd_data *data)
280 {
281 }
282 #endif /* CONFIG_HID_PICOLCD_LEDS */
283 
284 
285 #ifdef CONFIG_HID_PICOLCD_CIR
286 int picolcd_raw_cir(struct picolcd_data *data,
287  struct hid_report *report, u8 *raw_data, int size);
288 
289 int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report);
290 
291 void picolcd_exit_cir(struct picolcd_data *data);
292 #else
293 static inline int picolcd_raw_cir(struct picolcd_data *data,
294  struct hid_report *report, u8 *raw_data, int size)
295 {
296  return 1;
297 }
298 static inline int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report)
299 {
300  return 0;
301 }
302 static inline void picolcd_exit_cir(struct picolcd_data *data)
303 {
304 }
305 #endif /* CONFIG_HID_PICOLCD_LIRC */
306 
307 int picolcd_reset(struct hid_device *hdev);
309  int report_id, const u8 *raw_data, int size);