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fabdbf2f BP |
1 | /*************************************************************************** |
2 | * Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org> * | |
3 | * * | |
4 | * Based on Logitech G13 driver (v0.4) * | |
5 | * Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu> * | |
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 */ | |
62 | struct picolcd_pending { | |
63 | struct hid_report *out_report; | |
64 | struct hid_report *in_report; | |
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 */ | |
86 | u8 pressed_keys[2]; | |
87 | struct input_dev *input_keys; | |
88 | struct input_dev *input_cir; | |
89 | unsigned short keycode[PICOLCD_KEYS]; | |
90 | ||
91 | #ifdef CONFIG_HID_PICOLCD_FB | |
92 | /* Framebuffer stuff */ | |
93 | u8 fb_update_rate; | |
94 | u8 fb_bpp; | |
95 | u8 fb_force; | |
96 | u8 *fb_vbitmap; /* local copy of what was sent to PicoLCD */ | |
97 | u8 *fb_bitmap; /* framebuffer */ | |
98 | struct fb_info *fb_info; | |
99 | struct fb_deferred_io fb_defio; | |
100 | #endif /* CONFIG_HID_PICOLCD_FB */ | |
101 | #ifdef CONFIG_HID_PICOLCD_LCD | |
102 | struct lcd_device *lcd; | |
103 | u8 lcd_contrast; | |
104 | #endif /* CONFIG_HID_PICOLCD_LCD */ | |
105 | #ifdef CONFIG_HID_PICOLCD_BACKLIGHT | |
106 | struct backlight_device *backlight; | |
107 | u8 lcd_brightness; | |
108 | u8 lcd_power; | |
109 | #endif /* CONFIG_HID_PICOLCD_BACKLIGHT */ | |
110 | #ifdef CONFIG_HID_PICOLCD_LEDS | |
111 | /* LED stuff */ | |
112 | u8 led_state; | |
113 | struct led_classdev *led[8]; | |
114 | #endif /* CONFIG_HID_PICOLCD_LEDS */ | |
115 | ||
116 | /* Housekeeping stuff */ | |
117 | spinlock_t lock; | |
118 | struct mutex mutex; | |
119 | struct picolcd_pending *pending; | |
120 | int status; | |
121 | #define PICOLCD_BOOTLOADER 1 | |
122 | #define PICOLCD_FAILED 2 | |
123 | #define PICOLCD_READY_FB 4 | |
124 | }; | |
125 | ||
126 | ||
127 | /* Find a given report */ | |
128 | #define picolcd_in_report(id, dev) picolcd_report(id, dev, HID_INPUT_REPORT) | |
129 | #define picolcd_out_report(id, dev) picolcd_report(id, dev, HID_OUTPUT_REPORT) | |
130 | ||
131 | struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir); | |
132 | ||
133 | #ifdef CONFIG_DEBUG_FS | |
134 | void picolcd_debug_out_report(struct picolcd_data *data, | |
135 | struct hid_device *hdev, struct hid_report *report); | |
136 | #define usbhid_submit_report(a, b, c) \ | |
137 | do { \ | |
138 | picolcd_debug_out_report(hid_get_drvdata(a), a, b); \ | |
139 | usbhid_submit_report(a, b, c); \ | |
140 | } while (0) | |
141 | ||
142 | void picolcd_debug_raw_event(struct picolcd_data *data, | |
143 | struct hid_device *hdev, struct hid_report *report, | |
144 | u8 *raw_data, int size); | |
145 | ||
146 | void picolcd_init_devfs(struct picolcd_data *data, | |
147 | struct hid_report *eeprom_r, struct hid_report *eeprom_w, | |
148 | struct hid_report *flash_r, struct hid_report *flash_w, | |
149 | struct hid_report *reset); | |
150 | ||
151 | void picolcd_exit_devfs(struct picolcd_data *data); | |
152 | #else | |
153 | static inline void picolcd_debug_raw_event(struct picolcd_data *data, | |
154 | struct hid_device *hdev, struct hid_report *report, | |
155 | u8 *raw_data, int size) | |
156 | { | |
157 | } | |
158 | static inline void picolcd_init_devfs(struct picolcd_data *data, | |
159 | struct hid_report *eeprom_r, struct hid_report *eeprom_w, | |
160 | struct hid_report *flash_r, struct hid_report *flash_w, | |
161 | struct hid_report *reset) | |
162 | { | |
163 | } | |
164 | static inline void picolcd_exit_devfs(struct picolcd_data *data) | |
165 | { | |
166 | } | |
167 | static inline void picolcd_debug_raw_event(struct picolcd_data *data, | |
168 | struct hid_device *hdev, struct hid_report *report, | |
169 | u8 *raw_data, int size) | |
170 | { | |
171 | } | |
172 | #endif /* CONFIG_DEBUG_FS */ | |
173 | ||
174 | ||
175 | #ifdef CONFIG_HID_PICOLCD_FB | |
176 | int picolcd_fb_reset(struct picolcd_data *data, int clear); | |
177 | ||
178 | int picolcd_init_framebuffer(struct picolcd_data *data); | |
179 | ||
180 | void picolcd_exit_framebuffer(struct picolcd_data *data); | |
181 | ||
182 | void picolcd_fb_unload(void); | |
183 | ||
184 | void picolcd_fb_refresh(struct picolcd_data *data); | |
185 | #define picolcd_fbinfo(d) ((d)->fb_info) | |
186 | #else | |
187 | static inline int picolcd_fb_reset(struct picolcd_data *data, int clear) | |
188 | { | |
189 | return 0; | |
190 | } | |
191 | static inline int picolcd_init_framebuffer(struct picolcd_data *data) | |
192 | { | |
193 | return 0; | |
194 | } | |
195 | static inline void picolcd_exit_framebuffer(struct picolcd_data *data) | |
196 | { | |
197 | } | |
198 | static inline void picolcd_fb_unload(void) | |
199 | { | |
200 | } | |
201 | static inline void picolcd_fb_refresh(struct picolcd_data *data) | |
202 | { | |
203 | } | |
204 | #define picolcd_fbinfo(d) NULL | |
205 | #endif /* CONFIG_HID_PICOLCD_FB */ | |
206 | ||
207 | ||
208 | #ifdef CONFIG_HID_PICOLCD_BACKLIGHT | |
209 | int picolcd_init_backlight(struct picolcd_data *data, | |
210 | struct hid_report *report); | |
211 | ||
212 | void picolcd_exit_backlight(struct picolcd_data *data); | |
213 | ||
214 | int picolcd_resume_backlight(struct picolcd_data *data); | |
215 | ||
216 | void picolcd_suspend_backlight(struct picolcd_data *data); | |
217 | #else | |
218 | static inline int picolcd_init_backlight(struct picolcd_data *data, | |
219 | struct hid_report *report) | |
220 | { | |
221 | return 0; | |
222 | } | |
223 | static inline void picolcd_exit_backlight(struct picolcd_data *data) | |
224 | { | |
225 | } | |
226 | static inline int picolcd_resume_backlight(struct picolcd_data *data) | |
227 | { | |
228 | return 0; | |
229 | } | |
230 | static inline void picolcd_suspend_backlight(struct picolcd_data *data) | |
231 | { | |
232 | } | |
233 | ||
234 | #endif /* CONFIG_HID_PICOLCD_BACKLIGHT */ | |
235 | ||
236 | ||
237 | #ifdef CONFIG_HID_PICOLCD_LCD | |
238 | int picolcd_init_lcd(struct picolcd_data *data, | |
239 | struct hid_report *report); | |
240 | ||
241 | void picolcd_exit_lcd(struct picolcd_data *data); | |
242 | ||
243 | int picolcd_resume_lcd(struct picolcd_data *data); | |
244 | #else | |
245 | static inline int picolcd_init_lcd(struct picolcd_data *data, | |
246 | struct hid_report *report) | |
247 | { | |
248 | return 0; | |
249 | } | |
250 | static inline void picolcd_exit_lcd(struct picolcd_data *data) | |
251 | { | |
252 | } | |
253 | static inline int picolcd_resume_lcd(struct picolcd_data *data) | |
254 | { | |
255 | return 0; | |
256 | } | |
257 | #endif /* CONFIG_HID_PICOLCD_LCD */ | |
258 | ||
259 | ||
260 | #ifdef CONFIG_HID_PICOLCD_LEDS | |
261 | int picolcd_init_leds(struct picolcd_data *data, | |
262 | struct hid_report *report); | |
263 | ||
264 | void picolcd_exit_leds(struct picolcd_data *data); | |
265 | ||
266 | void picolcd_leds_set(struct picolcd_data *data); | |
267 | #else | |
268 | static inline int picolcd_init_leds(struct picolcd_data *data, | |
269 | struct hid_report *report) | |
270 | { | |
271 | return 0; | |
272 | } | |
273 | static inline void picolcd_exit_leds(struct picolcd_data *data) | |
274 | { | |
275 | } | |
276 | static inline void picolcd_leds_set(struct picolcd_data *data) | |
277 | { | |
278 | } | |
279 | #endif /* CONFIG_HID_PICOLCD_LEDS */ | |
280 | ||
281 | ||
282 | #ifdef CONFIG_HID_PICOLCD_CIR | |
283 | int picolcd_raw_cir(struct picolcd_data *data, | |
284 | struct hid_report *report, u8 *raw_data, int size); | |
285 | ||
286 | int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report); | |
287 | ||
288 | void picolcd_exit_cir(struct picolcd_data *data); | |
289 | #else | |
290 | static inline int picolcd_raw_cir(struct picolcd_data *data, | |
291 | struct hid_report *report, u8 *raw_data, int size) | |
292 | { | |
293 | return 1; | |
294 | } | |
295 | static inline int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report) | |
296 | { | |
297 | return 0; | |
298 | } | |
299 | static inline void picolcd_exit_cir(struct picolcd_data *data) | |
300 | { | |
301 | } | |
302 | #endif /* CONFIG_HID_PICOLCD_LIRC */ | |
303 | ||
304 | int picolcd_reset(struct hid_device *hdev); | |
305 | struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev, | |
306 | int report_id, const u8 *raw_data, int size); |