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9d200153 SM |
1 | /* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License version 2 and | |
5 | * only version 2 as published by the Free Software Foundation. | |
6 | * | |
7 | * This program is distributed in the hope that it will be useful, | |
8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
10 | * GNU General Public License for more details. | |
11 | * | |
12 | * You should have received a copy of the GNU General Public License | |
13 | * along with this program; if not, write to the Free Software | |
14 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
15 | * 02110-1301, USA. | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/mm.h> | |
23 | #include <linux/fb.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/ioport.h> | |
26 | #include <linux/device.h> | |
27 | #include <linux/dma-mapping.h> | |
28 | ||
29 | #include "msm_fb.h" | |
30 | #include "mddihost.h" | |
31 | #include "mddihosti.h" | |
32 | ||
33 | #include <linux/clk.h> | |
34 | #include <mach/clk.h> | |
35 | ||
36 | struct semaphore mddi_host_mutex; | |
37 | ||
38 | struct clk *mddi_io_clk; | |
39 | static boolean mddi_host_powered = FALSE; | |
40 | static boolean mddi_host_initialized = FALSE; | |
41 | extern uint32 *mddi_reg_read_value_ptr; | |
42 | ||
43 | mddi_lcd_func_type mddi_lcd; | |
44 | ||
45 | extern mddi_client_capability_type mddi_client_capability_pkt; | |
46 | ||
47 | #ifdef FEATURE_MDDI_HITACHI | |
48 | extern void mddi_hitachi_window_adjust(uint16 x1, | |
49 | uint16 x2, uint16 y1, uint16 y2); | |
50 | #endif | |
51 | ||
52 | extern void mddi_toshiba_lcd_init(void); | |
53 | ||
54 | #ifdef FEATURE_MDDI_S6D0142 | |
55 | extern void mddi_s6d0142_lcd_init(void); | |
56 | extern void mddi_s6d0142_window_adjust(uint16 x1, | |
57 | uint16 x2, | |
58 | uint16 y1, | |
59 | uint16 y2, | |
60 | mddi_llist_done_cb_type done_cb); | |
61 | #endif | |
62 | ||
63 | void mddi_init(void) | |
64 | { | |
65 | if (mddi_host_initialized) | |
66 | return; | |
67 | ||
68 | mddi_host_initialized = TRUE; | |
69 | ||
0f0800f1 | 70 | sema_init(&mddi_host_mutex, 1); |
9d200153 SM |
71 | |
72 | if (!mddi_host_powered) { | |
73 | down(&mddi_host_mutex); | |
74 | mddi_host_init(MDDI_HOST_PRIM); | |
75 | mddi_host_powered = TRUE; | |
76 | up(&mddi_host_mutex); | |
77 | mdelay(10); | |
78 | } | |
79 | } | |
80 | ||
81 | int mddi_host_register_read(uint32 reg_addr, | |
82 | uint32 *reg_value_ptr, boolean wait, mddi_host_type host) { | |
83 | mddi_linked_list_type *curr_llist_ptr; | |
84 | mddi_register_access_packet_type *regacc_pkt_ptr; | |
85 | uint16 curr_llist_idx; | |
86 | int ret = 0; | |
87 | ||
88 | if (in_interrupt()) | |
89 | MDDI_MSG_CRIT("Called from ISR context\n"); | |
90 | ||
91 | if (!mddi_host_powered) { | |
92 | MDDI_MSG_ERR("MDDI powered down!\n"); | |
93 | mddi_init(); | |
94 | } | |
95 | ||
96 | down(&mddi_host_mutex); | |
97 | ||
98 | mddi_reg_read_value_ptr = reg_value_ptr; | |
99 | curr_llist_idx = mddi_get_reg_read_llist_item(host, TRUE); | |
100 | if (curr_llist_idx == UNASSIGNED_INDEX) { | |
101 | up(&mddi_host_mutex); | |
102 | ||
103 | /* need to change this to some sort of wait */ | |
104 | MDDI_MSG_ERR("Attempting to queue up more than 1 reg read\n"); | |
105 | return -EINVAL; | |
106 | } | |
107 | ||
108 | curr_llist_ptr = &llist_extern[host][curr_llist_idx]; | |
109 | curr_llist_ptr->link_controller_flags = 0x11; | |
110 | curr_llist_ptr->packet_header_count = 14; | |
111 | curr_llist_ptr->packet_data_count = 0; | |
112 | ||
113 | curr_llist_ptr->next_packet_pointer = NULL; | |
114 | curr_llist_ptr->packet_data_pointer = NULL; | |
115 | curr_llist_ptr->reserved = 0; | |
116 | ||
117 | regacc_pkt_ptr = &curr_llist_ptr->packet_header.register_pkt; | |
118 | ||
119 | regacc_pkt_ptr->packet_length = curr_llist_ptr->packet_header_count; | |
120 | regacc_pkt_ptr->packet_type = 146; /* register access packet */ | |
121 | regacc_pkt_ptr->bClient_ID = 0; | |
122 | regacc_pkt_ptr->read_write_info = 0x8001; | |
123 | regacc_pkt_ptr->register_address = reg_addr; | |
124 | ||
125 | /* now adjust pointers */ | |
126 | mddi_queue_forward_packets(curr_llist_idx, curr_llist_idx, wait, | |
127 | NULL, host); | |
128 | /* need to check if we can write the pointer or not */ | |
129 | ||
130 | up(&mddi_host_mutex); | |
131 | ||
132 | if (wait) { | |
133 | int wait_ret; | |
134 | ||
135 | mddi_linked_list_notify_type *llist_notify_ptr; | |
136 | llist_notify_ptr = &llist_extern_notify[host][curr_llist_idx]; | |
137 | wait_ret = wait_for_completion_timeout( | |
138 | &(llist_notify_ptr->done_comp), 5 * HZ); | |
139 | ||
140 | if (wait_ret <= 0) | |
141 | ret = -EBUSY; | |
142 | ||
143 | if (wait_ret < 0) | |
144 | printk(KERN_ERR "%s: failed to wait for completion!\n", | |
145 | __func__); | |
146 | else if (!wait_ret) | |
147 | printk(KERN_ERR "%s: Timed out waiting!\n", __func__); | |
148 | } | |
149 | ||
150 | MDDI_MSG_DEBUG("Reg Read value=0x%x\n", *reg_value_ptr); | |
151 | ||
152 | return ret; | |
153 | } /* mddi_host_register_read */ | |
154 | ||
155 | int mddi_host_register_write(uint32 reg_addr, | |
156 | uint32 reg_val, enum mddi_data_packet_size_type packet_size, | |
157 | boolean wait, mddi_llist_done_cb_type done_cb, mddi_host_type host) { | |
158 | mddi_linked_list_type *curr_llist_ptr; | |
159 | mddi_linked_list_type *curr_llist_dma_ptr; | |
160 | mddi_register_access_packet_type *regacc_pkt_ptr; | |
161 | uint16 curr_llist_idx; | |
162 | int ret = 0; | |
163 | ||
164 | if (in_interrupt()) | |
165 | MDDI_MSG_CRIT("Called from ISR context\n"); | |
166 | ||
167 | if (!mddi_host_powered) { | |
168 | MDDI_MSG_ERR("MDDI powered down!\n"); | |
169 | mddi_init(); | |
170 | } | |
171 | ||
172 | down(&mddi_host_mutex); | |
173 | ||
174 | curr_llist_idx = mddi_get_next_free_llist_item(host, TRUE); | |
175 | curr_llist_ptr = &llist_extern[host][curr_llist_idx]; | |
176 | curr_llist_dma_ptr = &llist_dma_extern[host][curr_llist_idx]; | |
177 | ||
178 | curr_llist_ptr->link_controller_flags = 1; | |
179 | curr_llist_ptr->packet_header_count = 14; | |
180 | curr_llist_ptr->packet_data_count = 4; | |
181 | ||
182 | curr_llist_ptr->next_packet_pointer = NULL; | |
183 | curr_llist_ptr->reserved = 0; | |
184 | ||
185 | regacc_pkt_ptr = &curr_llist_ptr->packet_header.register_pkt; | |
186 | ||
187 | regacc_pkt_ptr->packet_length = curr_llist_ptr->packet_header_count + | |
188 | (uint16)packet_size; | |
189 | regacc_pkt_ptr->packet_type = 146; /* register access packet */ | |
190 | regacc_pkt_ptr->bClient_ID = 0; | |
191 | regacc_pkt_ptr->read_write_info = 0x0001; | |
192 | regacc_pkt_ptr->register_address = reg_addr; | |
193 | regacc_pkt_ptr->register_data_list = reg_val; | |
194 | ||
195 | MDDI_MSG_DEBUG("Reg Access write reg=0x%x, value=0x%x\n", | |
196 | regacc_pkt_ptr->register_address, | |
197 | regacc_pkt_ptr->register_data_list); | |
198 | ||
199 | regacc_pkt_ptr = &curr_llist_dma_ptr->packet_header.register_pkt; | |
200 | curr_llist_ptr->packet_data_pointer = | |
201 | (void *)(®acc_pkt_ptr->register_data_list); | |
202 | ||
203 | /* now adjust pointers */ | |
204 | mddi_queue_forward_packets(curr_llist_idx, curr_llist_idx, wait, | |
205 | done_cb, host); | |
206 | ||
207 | up(&mddi_host_mutex); | |
208 | ||
209 | if (wait) { | |
210 | int wait_ret; | |
211 | ||
212 | mddi_linked_list_notify_type *llist_notify_ptr; | |
213 | llist_notify_ptr = &llist_extern_notify[host][curr_llist_idx]; | |
214 | wait_ret = wait_for_completion_timeout( | |
215 | &(llist_notify_ptr->done_comp), 5 * HZ); | |
216 | ||
217 | if (wait_ret <= 0) | |
218 | ret = -EBUSY; | |
219 | ||
220 | if (wait_ret < 0) | |
221 | printk(KERN_ERR "%s: failed to wait for completion!\n", | |
222 | __func__); | |
223 | else if (!wait_ret) | |
224 | printk(KERN_ERR "%s: Timed out waiting!\n", __func__); | |
225 | } | |
226 | ||
227 | return ret; | |
228 | } /* mddi_host_register_write */ | |
229 | ||
230 | boolean mddi_host_register_read_int | |
231 | (uint32 reg_addr, uint32 *reg_value_ptr, mddi_host_type host) { | |
232 | mddi_linked_list_type *curr_llist_ptr; | |
233 | mddi_register_access_packet_type *regacc_pkt_ptr; | |
234 | uint16 curr_llist_idx; | |
235 | ||
236 | if (!in_interrupt()) | |
237 | MDDI_MSG_CRIT("Called from TASK context\n"); | |
238 | ||
239 | if (!mddi_host_powered) { | |
240 | MDDI_MSG_ERR("MDDI powered down!\n"); | |
241 | return FALSE; | |
242 | } | |
243 | ||
244 | if (down_trylock(&mddi_host_mutex) != 0) | |
245 | return FALSE; | |
246 | ||
247 | mddi_reg_read_value_ptr = reg_value_ptr; | |
248 | curr_llist_idx = mddi_get_reg_read_llist_item(host, FALSE); | |
249 | if (curr_llist_idx == UNASSIGNED_INDEX) { | |
250 | up(&mddi_host_mutex); | |
251 | return FALSE; | |
252 | } | |
253 | ||
254 | curr_llist_ptr = &llist_extern[host][curr_llist_idx]; | |
255 | curr_llist_ptr->link_controller_flags = 0x11; | |
256 | curr_llist_ptr->packet_header_count = 14; | |
257 | curr_llist_ptr->packet_data_count = 0; | |
258 | ||
259 | curr_llist_ptr->next_packet_pointer = NULL; | |
260 | curr_llist_ptr->packet_data_pointer = NULL; | |
261 | curr_llist_ptr->reserved = 0; | |
262 | ||
263 | regacc_pkt_ptr = &curr_llist_ptr->packet_header.register_pkt; | |
264 | ||
265 | regacc_pkt_ptr->packet_length = curr_llist_ptr->packet_header_count; | |
266 | regacc_pkt_ptr->packet_type = 146; /* register access packet */ | |
267 | regacc_pkt_ptr->bClient_ID = 0; | |
268 | regacc_pkt_ptr->read_write_info = 0x8001; | |
269 | regacc_pkt_ptr->register_address = reg_addr; | |
270 | ||
271 | /* now adjust pointers */ | |
272 | mddi_queue_forward_packets(curr_llist_idx, curr_llist_idx, FALSE, | |
273 | NULL, host); | |
274 | /* need to check if we can write the pointer or not */ | |
275 | ||
276 | up(&mddi_host_mutex); | |
277 | ||
278 | return TRUE; | |
279 | ||
280 | } /* mddi_host_register_read */ | |
281 | ||
282 | boolean mddi_host_register_write_int | |
283 | (uint32 reg_addr, | |
284 | uint32 reg_val, mddi_llist_done_cb_type done_cb, mddi_host_type host) { | |
285 | mddi_linked_list_type *curr_llist_ptr; | |
286 | mddi_linked_list_type *curr_llist_dma_ptr; | |
287 | mddi_register_access_packet_type *regacc_pkt_ptr; | |
288 | uint16 curr_llist_idx; | |
289 | ||
290 | if (!in_interrupt()) | |
291 | MDDI_MSG_CRIT("Called from TASK context\n"); | |
292 | ||
293 | if (!mddi_host_powered) { | |
294 | MDDI_MSG_ERR("MDDI powered down!\n"); | |
295 | return FALSE; | |
296 | } | |
297 | ||
298 | if (down_trylock(&mddi_host_mutex) != 0) | |
299 | return FALSE; | |
300 | ||
301 | curr_llist_idx = mddi_get_next_free_llist_item(host, FALSE); | |
302 | if (curr_llist_idx == UNASSIGNED_INDEX) { | |
303 | up(&mddi_host_mutex); | |
304 | return FALSE; | |
305 | } | |
306 | ||
307 | curr_llist_ptr = &llist_extern[host][curr_llist_idx]; | |
308 | curr_llist_dma_ptr = &llist_dma_extern[host][curr_llist_idx]; | |
309 | ||
310 | curr_llist_ptr->link_controller_flags = 1; | |
311 | curr_llist_ptr->packet_header_count = 14; | |
312 | curr_llist_ptr->packet_data_count = 4; | |
313 | ||
314 | curr_llist_ptr->next_packet_pointer = NULL; | |
315 | curr_llist_ptr->reserved = 0; | |
316 | ||
317 | regacc_pkt_ptr = &curr_llist_ptr->packet_header.register_pkt; | |
318 | ||
319 | regacc_pkt_ptr->packet_length = curr_llist_ptr->packet_header_count + 4; | |
320 | regacc_pkt_ptr->packet_type = 146; /* register access packet */ | |
321 | regacc_pkt_ptr->bClient_ID = 0; | |
322 | regacc_pkt_ptr->read_write_info = 0x0001; | |
323 | regacc_pkt_ptr->register_address = reg_addr; | |
324 | regacc_pkt_ptr->register_data_list = reg_val; | |
325 | ||
326 | regacc_pkt_ptr = &curr_llist_dma_ptr->packet_header.register_pkt; | |
327 | curr_llist_ptr->packet_data_pointer = | |
328 | (void *)(&(regacc_pkt_ptr->register_data_list)); | |
329 | ||
330 | /* now adjust pointers */ | |
331 | mddi_queue_forward_packets(curr_llist_idx, curr_llist_idx, FALSE, | |
332 | done_cb, host); | |
333 | up(&mddi_host_mutex); | |
334 | ||
335 | return TRUE; | |
336 | ||
337 | } /* mddi_host_register_write */ | |
338 | ||
339 | void mddi_wait(uint16 time_ms) | |
340 | { | |
341 | mdelay(time_ms); | |
342 | } | |
343 | ||
344 | void mddi_client_lcd_vsync_detected(boolean detected) | |
345 | { | |
346 | if (mddi_lcd.vsync_detected) | |
347 | (*mddi_lcd.vsync_detected) (detected); | |
348 | } | |
349 | ||
350 | /* extended version of function includes done callback */ | |
351 | void mddi_window_adjust_ext(struct msm_fb_data_type *mfd, | |
352 | uint16 x1, | |
353 | uint16 x2, | |
354 | uint16 y1, | |
355 | uint16 y2, mddi_llist_done_cb_type done_cb) | |
356 | { | |
357 | #ifdef FEATURE_MDDI_HITACHI | |
358 | if (mfd->panel.id == HITACHI) | |
359 | mddi_hitachi_window_adjust(x1, x2, y1, y2); | |
360 | #elif defined(FEATURE_MDDI_S6D0142) | |
361 | if (mfd->panel.id == MDDI_LCD_S6D0142) | |
362 | mddi_s6d0142_window_adjust(x1, x2, y1, y2, done_cb); | |
363 | #else | |
364 | /* Do nothing then... except avoid lint/compiler warnings */ | |
365 | (void)x1; | |
366 | (void)x2; | |
367 | (void)y1; | |
368 | (void)y2; | |
369 | (void)done_cb; | |
370 | #endif | |
371 | } | |
372 | ||
373 | void mddi_window_adjust(struct msm_fb_data_type *mfd, | |
374 | uint16 x1, uint16 x2, uint16 y1, uint16 y2) | |
375 | { | |
376 | mddi_window_adjust_ext(mfd, x1, x2, y1, y2, NULL); | |
377 | } |