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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 | #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 */ |
113 | spinlock_t lock; |
114 | struct mutex mutex; |
115 | struct picolcd_pending *pending; |
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 */ |
125 | spinlock_t lock; |
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 |
143 | void picolcd_debug_out_report(struct picolcd_data *data, |
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 | |
151 | void picolcd_debug_raw_event(struct picolcd_data *data, |
152 | struct hid_device *hdev, struct hid_report *report, |
153 | u8 *raw_data, int size); |
154 | |
155 | void picolcd_init_devfs(struct picolcd_data *data, |
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 | |
186 | int picolcd_init_framebuffer(struct picolcd_data *data); |
187 | |
188 | void picolcd_exit_framebuffer(struct picolcd_data *data); |
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 |
212 | int picolcd_init_backlight(struct picolcd_data *data, |
213 | struct hid_report *report); |
214 | |
215 | void picolcd_exit_backlight(struct picolcd_data *data); |
216 | |
217 | int picolcd_resume_backlight(struct picolcd_data *data); |
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 |
241 | int picolcd_init_lcd(struct picolcd_data *data, |
242 | struct hid_report *report); |
243 | |
244 | void picolcd_exit_lcd(struct picolcd_data *data); |
245 | |
246 | int picolcd_resume_lcd(struct picolcd_data *data); |
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 |
264 | int picolcd_init_leds(struct picolcd_data *data, |
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); |
308 | struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev, |
309 | int report_id, const u8 *raw_data, int size); |
310 |
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