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73135e96 VB |
1 | /* |
2 | * SoC-camera host driver for Renesas R-Car VIN unit | |
3 | * | |
4 | * Copyright (C) 2011-2013 Renesas Solutions Corp. | |
5 | * Copyright (C) 2013 Cogent Embedded, Inc., <source@cogentembedded.com> | |
6 | * | |
7 | * Based on V4L2 Driver for SuperH Mobile CEU interface "sh_mobile_ceu_camera.c" | |
8 | * | |
9 | * Copyright (C) 2008 Magnus Damm | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
15 | */ | |
16 | ||
17 | #include <linux/delay.h> | |
18 | #include <linux/interrupt.h> | |
3cdcf736 | 19 | #include <linux/io.h> |
73135e96 VB |
20 | #include <linux/kernel.h> |
21 | #include <linux/module.h> | |
47c71bd6 BD |
22 | #include <linux/of.h> |
23 | #include <linux/of_device.h> | |
73135e96 VB |
24 | #include <linux/platform_data/camera-rcar.h> |
25 | #include <linux/platform_device.h> | |
26 | #include <linux/pm_runtime.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/videodev2.h> | |
29 | ||
30 | #include <media/soc_camera.h> | |
31 | #include <media/soc_mediabus.h> | |
32 | #include <media/v4l2-common.h> | |
33 | #include <media/v4l2-dev.h> | |
34 | #include <media/v4l2-device.h> | |
35 | #include <media/v4l2-mediabus.h> | |
47c71bd6 | 36 | #include <media/v4l2-of.h> |
73135e96 VB |
37 | #include <media/v4l2-subdev.h> |
38 | #include <media/videobuf2-dma-contig.h> | |
39 | ||
40 | #include "soc_scale_crop.h" | |
41 | ||
42 | #define DRV_NAME "rcar_vin" | |
43 | ||
44 | /* Register offsets for R-Car VIN */ | |
45 | #define VNMC_REG 0x00 /* Video n Main Control Register */ | |
46 | #define VNMS_REG 0x04 /* Video n Module Status Register */ | |
47 | #define VNFC_REG 0x08 /* Video n Frame Capture Register */ | |
48 | #define VNSLPRC_REG 0x0C /* Video n Start Line Pre-Clip Register */ | |
49 | #define VNELPRC_REG 0x10 /* Video n End Line Pre-Clip Register */ | |
50 | #define VNSPPRC_REG 0x14 /* Video n Start Pixel Pre-Clip Register */ | |
51 | #define VNEPPRC_REG 0x18 /* Video n End Pixel Pre-Clip Register */ | |
52 | #define VNSLPOC_REG 0x1C /* Video n Start Line Post-Clip Register */ | |
53 | #define VNELPOC_REG 0x20 /* Video n End Line Post-Clip Register */ | |
54 | #define VNSPPOC_REG 0x24 /* Video n Start Pixel Post-Clip Register */ | |
55 | #define VNEPPOC_REG 0x28 /* Video n End Pixel Post-Clip Register */ | |
56 | #define VNIS_REG 0x2C /* Video n Image Stride Register */ | |
57 | #define VNMB_REG(m) (0x30 + ((m) << 2)) /* Video n Memory Base m Register */ | |
58 | #define VNIE_REG 0x40 /* Video n Interrupt Enable Register */ | |
59 | #define VNINTS_REG 0x44 /* Video n Interrupt Status Register */ | |
60 | #define VNSI_REG 0x48 /* Video n Scanline Interrupt Register */ | |
61 | #define VNMTC_REG 0x4C /* Video n Memory Transfer Control Register */ | |
62 | #define VNYS_REG 0x50 /* Video n Y Scale Register */ | |
63 | #define VNXS_REG 0x54 /* Video n X Scale Register */ | |
64 | #define VNDMR_REG 0x58 /* Video n Data Mode Register */ | |
65 | #define VNDMR2_REG 0x5C /* Video n Data Mode Register 2 */ | |
66 | #define VNUVAOF_REG 0x60 /* Video n UV Address Offset Register */ | |
4c28078c KM |
67 | #define VNC1A_REG 0x80 /* Video n Coefficient Set C1A Register */ |
68 | #define VNC1B_REG 0x84 /* Video n Coefficient Set C1B Register */ | |
69 | #define VNC1C_REG 0x88 /* Video n Coefficient Set C1C Register */ | |
70 | #define VNC2A_REG 0x90 /* Video n Coefficient Set C2A Register */ | |
71 | #define VNC2B_REG 0x94 /* Video n Coefficient Set C2B Register */ | |
72 | #define VNC2C_REG 0x98 /* Video n Coefficient Set C2C Register */ | |
73 | #define VNC3A_REG 0xA0 /* Video n Coefficient Set C3A Register */ | |
74 | #define VNC3B_REG 0xA4 /* Video n Coefficient Set C3B Register */ | |
75 | #define VNC3C_REG 0xA8 /* Video n Coefficient Set C3C Register */ | |
76 | #define VNC4A_REG 0xB0 /* Video n Coefficient Set C4A Register */ | |
77 | #define VNC4B_REG 0xB4 /* Video n Coefficient Set C4B Register */ | |
78 | #define VNC4C_REG 0xB8 /* Video n Coefficient Set C4C Register */ | |
79 | #define VNC5A_REG 0xC0 /* Video n Coefficient Set C5A Register */ | |
80 | #define VNC5B_REG 0xC4 /* Video n Coefficient Set C5B Register */ | |
81 | #define VNC5C_REG 0xC8 /* Video n Coefficient Set C5C Register */ | |
82 | #define VNC6A_REG 0xD0 /* Video n Coefficient Set C6A Register */ | |
83 | #define VNC6B_REG 0xD4 /* Video n Coefficient Set C6B Register */ | |
84 | #define VNC6C_REG 0xD8 /* Video n Coefficient Set C6C Register */ | |
85 | #define VNC7A_REG 0xE0 /* Video n Coefficient Set C7A Register */ | |
86 | #define VNC7B_REG 0xE4 /* Video n Coefficient Set C7B Register */ | |
87 | #define VNC7C_REG 0xE8 /* Video n Coefficient Set C7C Register */ | |
88 | #define VNC8A_REG 0xF0 /* Video n Coefficient Set C8A Register */ | |
89 | #define VNC8B_REG 0xF4 /* Video n Coefficient Set C8B Register */ | |
90 | #define VNC8C_REG 0xF8 /* Video n Coefficient Set C8C Register */ | |
73135e96 VB |
91 | |
92 | /* Register bit fields for R-Car VIN */ | |
93 | /* Video n Main Control Register bits */ | |
94 | #define VNMC_FOC (1 << 21) | |
95 | #define VNMC_YCAL (1 << 19) | |
96 | #define VNMC_INF_YUV8_BT656 (0 << 16) | |
97 | #define VNMC_INF_YUV8_BT601 (1 << 16) | |
cbe504d4 PE |
98 | #define VNMC_INF_YUV10_BT656 (2 << 16) |
99 | #define VNMC_INF_YUV10_BT601 (3 << 16) | |
73135e96 VB |
100 | #define VNMC_INF_YUV16 (5 << 16) |
101 | #define VNMC_VUP (1 << 10) | |
102 | #define VNMC_IM_ODD (0 << 3) | |
103 | #define VNMC_IM_ODD_EVEN (1 << 3) | |
104 | #define VNMC_IM_EVEN (2 << 3) | |
105 | #define VNMC_IM_FULL (3 << 3) | |
106 | #define VNMC_BPS (1 << 1) | |
107 | #define VNMC_ME (1 << 0) | |
108 | ||
109 | /* Video n Module Status Register bits */ | |
110 | #define VNMS_FBS_MASK (3 << 3) | |
111 | #define VNMS_FBS_SHIFT 3 | |
112 | #define VNMS_AV (1 << 1) | |
113 | #define VNMS_CA (1 << 0) | |
114 | ||
115 | /* Video n Frame Capture Register bits */ | |
116 | #define VNFC_C_FRAME (1 << 1) | |
117 | #define VNFC_S_FRAME (1 << 0) | |
118 | ||
119 | /* Video n Interrupt Enable Register bits */ | |
120 | #define VNIE_FIE (1 << 4) | |
121 | #define VNIE_EFE (1 << 1) | |
122 | ||
123 | /* Video n Data Mode Register bits */ | |
124 | #define VNDMR_EXRGB (1 << 8) | |
125 | #define VNDMR_BPSM (1 << 4) | |
126 | #define VNDMR_DTMD_YCSEP (1 << 1) | |
127 | #define VNDMR_DTMD_ARGB1555 (1 << 0) | |
128 | ||
129 | /* Video n Data Mode Register 2 bits */ | |
130 | #define VNDMR2_VPS (1 << 30) | |
131 | #define VNDMR2_HPS (1 << 29) | |
132 | #define VNDMR2_FTEV (1 << 17) | |
609f33c9 | 133 | #define VNDMR2_VLV(n) ((n & 0xf) << 12) |
73135e96 VB |
134 | |
135 | #define VIN_MAX_WIDTH 2048 | |
136 | #define VIN_MAX_HEIGHT 2048 | |
137 | ||
138 | enum chip_id { | |
2a9ecc17 | 139 | RCAR_GEN2, |
73135e96 VB |
140 | RCAR_H1, |
141 | RCAR_M1, | |
142 | RCAR_E1, | |
143 | }; | |
144 | ||
4c28078c KM |
145 | struct vin_coeff { |
146 | unsigned short xs_value; | |
147 | u32 coeff_set[24]; | |
148 | }; | |
149 | ||
150 | static const struct vin_coeff vin_coeff_set[] = { | |
151 | { 0x0000, { | |
152 | 0x00000000, 0x00000000, 0x00000000, | |
153 | 0x00000000, 0x00000000, 0x00000000, | |
154 | 0x00000000, 0x00000000, 0x00000000, | |
155 | 0x00000000, 0x00000000, 0x00000000, | |
156 | 0x00000000, 0x00000000, 0x00000000, | |
157 | 0x00000000, 0x00000000, 0x00000000, | |
158 | 0x00000000, 0x00000000, 0x00000000, | |
159 | 0x00000000, 0x00000000, 0x00000000 }, | |
160 | }, | |
161 | { 0x1000, { | |
162 | 0x000fa400, 0x000fa400, 0x09625902, | |
163 | 0x000003f8, 0x00000403, 0x3de0d9f0, | |
164 | 0x001fffed, 0x00000804, 0x3cc1f9c3, | |
165 | 0x001003de, 0x00000c01, 0x3cb34d7f, | |
166 | 0x002003d2, 0x00000c00, 0x3d24a92d, | |
167 | 0x00200bca, 0x00000bff, 0x3df600d2, | |
168 | 0x002013cc, 0x000007ff, 0x3ed70c7e, | |
169 | 0x00100fde, 0x00000000, 0x3f87c036 }, | |
170 | }, | |
171 | { 0x1200, { | |
172 | 0x002ffff1, 0x002ffff1, 0x02a0a9c8, | |
173 | 0x002003e7, 0x001ffffa, 0x000185bc, | |
174 | 0x002007dc, 0x000003ff, 0x3e52859c, | |
175 | 0x00200bd4, 0x00000002, 0x3d53996b, | |
176 | 0x00100fd0, 0x00000403, 0x3d04ad2d, | |
177 | 0x00000bd5, 0x00000403, 0x3d35ace7, | |
178 | 0x3ff003e4, 0x00000801, 0x3dc674a1, | |
179 | 0x3fffe800, 0x00000800, 0x3e76f461 }, | |
180 | }, | |
181 | { 0x1400, { | |
182 | 0x00100be3, 0x00100be3, 0x04d1359a, | |
183 | 0x00000fdb, 0x002003ed, 0x0211fd93, | |
184 | 0x00000fd6, 0x002003f4, 0x0002d97b, | |
185 | 0x000007d6, 0x002ffffb, 0x3e93b956, | |
186 | 0x3ff003da, 0x001003ff, 0x3db49926, | |
187 | 0x3fffefe9, 0x00100001, 0x3d655cee, | |
188 | 0x3fffd400, 0x00000003, 0x3d65f4b6, | |
189 | 0x000fb421, 0x00000402, 0x3dc6547e }, | |
190 | }, | |
191 | { 0x1600, { | |
192 | 0x00000bdd, 0x00000bdd, 0x06519578, | |
193 | 0x3ff007da, 0x00000be3, 0x03c24973, | |
194 | 0x3ff003d9, 0x00000be9, 0x01b30d5f, | |
195 | 0x3ffff7df, 0x001003f1, 0x0003c542, | |
196 | 0x000fdfec, 0x001003f7, 0x3ec4711d, | |
197 | 0x000fc400, 0x002ffffd, 0x3df504f1, | |
198 | 0x001fa81a, 0x002ffc00, 0x3d957cc2, | |
199 | 0x002f8c3c, 0x00100000, 0x3db5c891 }, | |
200 | }, | |
201 | { 0x1800, { | |
202 | 0x3ff003dc, 0x3ff003dc, 0x0791e558, | |
203 | 0x000ff7dd, 0x3ff007de, 0x05328554, | |
204 | 0x000fe7e3, 0x3ff00be2, 0x03232546, | |
205 | 0x000fd7ee, 0x000007e9, 0x0143bd30, | |
206 | 0x001fb800, 0x000007ee, 0x00044511, | |
207 | 0x002fa015, 0x000007f4, 0x3ef4bcee, | |
208 | 0x002f8832, 0x001003f9, 0x3e4514c7, | |
209 | 0x001f7853, 0x001003fd, 0x3de54c9f }, | |
210 | }, | |
211 | { 0x1a00, { | |
212 | 0x000fefe0, 0x000fefe0, 0x08721d3c, | |
213 | 0x001fdbe7, 0x000ffbde, 0x0652a139, | |
214 | 0x001fcbf0, 0x000003df, 0x0463292e, | |
215 | 0x002fb3ff, 0x3ff007e3, 0x0293a91d, | |
216 | 0x002f9c12, 0x3ff00be7, 0x01241905, | |
217 | 0x001f8c29, 0x000007ed, 0x3fe470eb, | |
218 | 0x000f7c46, 0x000007f2, 0x3f04b8ca, | |
219 | 0x3fef7865, 0x000007f6, 0x3e74e4a8 }, | |
220 | }, | |
221 | { 0x1c00, { | |
222 | 0x001fd3e9, 0x001fd3e9, 0x08f23d26, | |
223 | 0x002fbff3, 0x001fe3e4, 0x0712ad23, | |
224 | 0x002fa800, 0x000ff3e0, 0x05631d1b, | |
225 | 0x001f9810, 0x000ffbe1, 0x03b3890d, | |
226 | 0x000f8c23, 0x000003e3, 0x0233e8fa, | |
227 | 0x3fef843b, 0x000003e7, 0x00f430e4, | |
228 | 0x3fbf8456, 0x3ff00bea, 0x00046cc8, | |
229 | 0x3f8f8c72, 0x3ff00bef, 0x3f3490ac }, | |
230 | }, | |
231 | { 0x1e00, { | |
232 | 0x001fbbf4, 0x001fbbf4, 0x09425112, | |
233 | 0x001fa800, 0x002fc7ed, 0x0792b110, | |
234 | 0x000f980e, 0x001fdbe6, 0x0613110a, | |
235 | 0x3fff8c20, 0x001fe7e3, 0x04a368fd, | |
236 | 0x3fcf8c33, 0x000ff7e2, 0x0343b8ed, | |
237 | 0x3f9f8c4a, 0x000fffe3, 0x0203f8da, | |
238 | 0x3f5f9c61, 0x000003e6, 0x00e428c5, | |
239 | 0x3f1fb07b, 0x000003eb, 0x3fe440af }, | |
240 | }, | |
241 | { 0x2000, { | |
242 | 0x000fa400, 0x000fa400, 0x09625902, | |
243 | 0x3fff980c, 0x001fb7f5, 0x0812b0ff, | |
244 | 0x3fdf901c, 0x001fc7ed, 0x06b2fcfa, | |
245 | 0x3faf902d, 0x001fd3e8, 0x055348f1, | |
246 | 0x3f7f983f, 0x001fe3e5, 0x04038ce3, | |
247 | 0x3f3fa454, 0x001fefe3, 0x02e3c8d1, | |
248 | 0x3f0fb86a, 0x001ff7e4, 0x01c3e8c0, | |
249 | 0x3ecfd880, 0x000fffe6, 0x00c404ac }, | |
250 | }, | |
251 | { 0x2200, { | |
252 | 0x3fdf9c0b, 0x3fdf9c0b, 0x09725cf4, | |
253 | 0x3fbf9818, 0x3fffa400, 0x0842a8f1, | |
254 | 0x3f8f9827, 0x000fb3f7, 0x0702f0ec, | |
255 | 0x3f5fa037, 0x000fc3ef, 0x05d330e4, | |
256 | 0x3f2fac49, 0x001fcfea, 0x04a364d9, | |
257 | 0x3effc05c, 0x001fdbe7, 0x038394ca, | |
258 | 0x3ecfdc6f, 0x001fe7e6, 0x0273b0bb, | |
259 | 0x3ea00083, 0x001fefe6, 0x0183c0a9 }, | |
260 | }, | |
261 | { 0x2400, { | |
262 | 0x3f9fa014, 0x3f9fa014, 0x098260e6, | |
263 | 0x3f7f9c23, 0x3fcf9c0a, 0x08629ce5, | |
264 | 0x3f4fa431, 0x3fefa400, 0x0742d8e1, | |
265 | 0x3f1fb440, 0x3fffb3f8, 0x062310d9, | |
266 | 0x3eefc850, 0x000fbbf2, 0x050340d0, | |
267 | 0x3ecfe062, 0x000fcbec, 0x041364c2, | |
268 | 0x3ea00073, 0x001fd3ea, 0x03037cb5, | |
269 | 0x3e902086, 0x001fdfe8, 0x022388a5 }, | |
270 | }, | |
271 | { 0x2600, { | |
272 | 0x3f5fa81e, 0x3f5fa81e, 0x096258da, | |
273 | 0x3f3fac2b, 0x3f8fa412, 0x088290d8, | |
274 | 0x3f0fbc38, 0x3fafa408, 0x0772c8d5, | |
275 | 0x3eefcc47, 0x3fcfa800, 0x0672f4ce, | |
276 | 0x3ecfe456, 0x3fefaffa, 0x05531cc6, | |
277 | 0x3eb00066, 0x3fffbbf3, 0x047334bb, | |
278 | 0x3ea01c77, 0x000fc7ee, 0x039348ae, | |
279 | 0x3ea04486, 0x000fd3eb, 0x02b350a1 }, | |
280 | }, | |
281 | { 0x2800, { | |
282 | 0x3f2fb426, 0x3f2fb426, 0x094250ce, | |
283 | 0x3f0fc032, 0x3f4fac1b, 0x086284cd, | |
284 | 0x3eefd040, 0x3f7fa811, 0x0782acc9, | |
285 | 0x3ecfe84c, 0x3f9fa807, 0x06a2d8c4, | |
286 | 0x3eb0005b, 0x3fbfac00, 0x05b2f4bc, | |
287 | 0x3eb0186a, 0x3fdfb3fa, 0x04c308b4, | |
288 | 0x3eb04077, 0x3fefbbf4, 0x03f31ca8, | |
289 | 0x3ec06884, 0x000fbff2, 0x03031c9e }, | |
290 | }, | |
291 | { 0x2a00, { | |
292 | 0x3f0fc42d, 0x3f0fc42d, 0x090240c4, | |
293 | 0x3eefd439, 0x3f2fb822, 0x08526cc2, | |
294 | 0x3edfe845, 0x3f4fb018, 0x078294bf, | |
295 | 0x3ec00051, 0x3f6fac0f, 0x06b2b4bb, | |
296 | 0x3ec0185f, 0x3f8fac07, 0x05e2ccb4, | |
297 | 0x3ec0386b, 0x3fafac00, 0x0502e8ac, | |
298 | 0x3ed05c77, 0x3fcfb3fb, 0x0432f0a3, | |
299 | 0x3ef08482, 0x3fdfbbf6, 0x0372f898 }, | |
300 | }, | |
301 | { 0x2c00, { | |
302 | 0x3eefdc31, 0x3eefdc31, 0x08e238b8, | |
303 | 0x3edfec3d, 0x3f0fc828, 0x082258b9, | |
304 | 0x3ed00049, 0x3f1fc01e, 0x077278b6, | |
305 | 0x3ed01455, 0x3f3fb815, 0x06c294b2, | |
306 | 0x3ed03460, 0x3f5fb40d, 0x0602acac, | |
307 | 0x3ef0506c, 0x3f7fb006, 0x0542c0a4, | |
308 | 0x3f107476, 0x3f9fb400, 0x0472c89d, | |
309 | 0x3f309c80, 0x3fbfb7fc, 0x03b2cc94 }, | |
310 | }, | |
311 | { 0x2e00, { | |
312 | 0x3eefec37, 0x3eefec37, 0x088220b0, | |
313 | 0x3ee00041, 0x3effdc2d, 0x07f244ae, | |
314 | 0x3ee0144c, 0x3f0fd023, 0x07625cad, | |
315 | 0x3ef02c57, 0x3f1fc81a, 0x06c274a9, | |
316 | 0x3f004861, 0x3f3fbc13, 0x060288a6, | |
317 | 0x3f20686b, 0x3f5fb80c, 0x05529c9e, | |
318 | 0x3f408c74, 0x3f6fb805, 0x04b2ac96, | |
319 | 0x3f80ac7e, 0x3f8fb800, 0x0402ac8e }, | |
320 | }, | |
321 | { 0x3000, { | |
322 | 0x3ef0003a, 0x3ef0003a, 0x084210a6, | |
323 | 0x3ef01045, 0x3effec32, 0x07b228a7, | |
324 | 0x3f00284e, 0x3f0fdc29, 0x073244a4, | |
325 | 0x3f104058, 0x3f0fd420, 0x06a258a2, | |
326 | 0x3f305c62, 0x3f2fc818, 0x0612689d, | |
327 | 0x3f508069, 0x3f3fc011, 0x05728496, | |
328 | 0x3f80a072, 0x3f4fc00a, 0x04d28c90, | |
329 | 0x3fc0c07b, 0x3f6fbc04, 0x04429088 }, | |
330 | }, | |
331 | { 0x3200, { | |
332 | 0x3f00103e, 0x3f00103e, 0x07f1fc9e, | |
333 | 0x3f102447, 0x3f000035, 0x0782149d, | |
334 | 0x3f203c4f, 0x3f0ff02c, 0x07122c9c, | |
335 | 0x3f405458, 0x3f0fe424, 0x06924099, | |
336 | 0x3f607061, 0x3f1fd41d, 0x06024c97, | |
337 | 0x3f909068, 0x3f2fcc16, 0x05726490, | |
338 | 0x3fc0b070, 0x3f3fc80f, 0x04f26c8a, | |
339 | 0x0000d077, 0x3f4fc409, 0x04627484 }, | |
340 | }, | |
341 | { 0x3400, { | |
342 | 0x3f202040, 0x3f202040, 0x07a1e898, | |
343 | 0x3f303449, 0x3f100c38, 0x0741fc98, | |
344 | 0x3f504c50, 0x3f10002f, 0x06e21495, | |
345 | 0x3f706459, 0x3f1ff028, 0x06722492, | |
346 | 0x3fa08060, 0x3f1fe421, 0x05f2348f, | |
347 | 0x3fd09c67, 0x3f1fdc19, 0x05824c89, | |
348 | 0x0000bc6e, 0x3f2fd014, 0x04f25086, | |
349 | 0x0040dc74, 0x3f3fcc0d, 0x04825c7f }, | |
350 | }, | |
351 | { 0x3600, { | |
352 | 0x3f403042, 0x3f403042, 0x0761d890, | |
353 | 0x3f504848, 0x3f301c3b, 0x0701f090, | |
354 | 0x3f805c50, 0x3f200c33, 0x06a2008f, | |
355 | 0x3fa07458, 0x3f10002b, 0x06520c8d, | |
356 | 0x3fd0905e, 0x3f1ff424, 0x05e22089, | |
357 | 0x0000ac65, 0x3f1fe81d, 0x05823483, | |
358 | 0x0030cc6a, 0x3f2fdc18, 0x04f23c81, | |
359 | 0x0080e871, 0x3f2fd412, 0x0482407c }, | |
360 | }, | |
361 | { 0x3800, { | |
362 | 0x3f604043, 0x3f604043, 0x0721c88a, | |
363 | 0x3f80544a, 0x3f502c3c, 0x06d1d88a, | |
364 | 0x3fb06851, 0x3f301c35, 0x0681e889, | |
365 | 0x3fd08456, 0x3f30082f, 0x0611fc88, | |
366 | 0x00009c5d, 0x3f200027, 0x05d20884, | |
367 | 0x0030b863, 0x3f2ff421, 0x05621880, | |
368 | 0x0070d468, 0x3f2fe81b, 0x0502247c, | |
369 | 0x00c0ec6f, 0x3f2fe015, 0x04a22877 }, | |
370 | }, | |
371 | { 0x3a00, { | |
372 | 0x3f904c44, 0x3f904c44, 0x06e1b884, | |
373 | 0x3fb0604a, 0x3f70383e, 0x0691c885, | |
374 | 0x3fe07451, 0x3f502c36, 0x0661d483, | |
375 | 0x00009055, 0x3f401831, 0x0601ec81, | |
376 | 0x0030a85b, 0x3f300c2a, 0x05b1f480, | |
377 | 0x0070c061, 0x3f300024, 0x0562047a, | |
378 | 0x00b0d867, 0x3f3ff41e, 0x05020c77, | |
379 | 0x00f0f46b, 0x3f2fec19, 0x04a21474 }, | |
380 | }, | |
381 | { 0x3c00, { | |
382 | 0x3fb05c43, 0x3fb05c43, 0x06c1b07e, | |
383 | 0x3fe06c4b, 0x3f902c3f, 0x0681c081, | |
384 | 0x0000844f, 0x3f703838, 0x0631cc7d, | |
385 | 0x00309855, 0x3f602433, 0x05d1d47e, | |
386 | 0x0060b459, 0x3f50142e, 0x0581e47b, | |
387 | 0x00a0c85f, 0x3f400828, 0x0531f078, | |
388 | 0x00e0e064, 0x3f300021, 0x0501fc73, | |
389 | 0x00b0fc6a, 0x3f3ff41d, 0x04a20873 }, | |
390 | }, | |
391 | { 0x3e00, { | |
392 | 0x3fe06444, 0x3fe06444, 0x0681a07a, | |
393 | 0x00007849, 0x3fc0503f, 0x0641b07a, | |
394 | 0x0020904d, 0x3fa0403a, 0x05f1c07a, | |
395 | 0x0060a453, 0x3f803034, 0x05c1c878, | |
396 | 0x0090b858, 0x3f70202f, 0x0571d477, | |
397 | 0x00d0d05d, 0x3f501829, 0x0531e073, | |
398 | 0x0110e462, 0x3f500825, 0x04e1e471, | |
399 | 0x01510065, 0x3f40001f, 0x04a1f06d }, | |
400 | }, | |
401 | { 0x4000, { | |
402 | 0x00007044, 0x00007044, 0x06519476, | |
403 | 0x00208448, 0x3fe05c3f, 0x0621a476, | |
404 | 0x0050984d, 0x3fc04c3a, 0x05e1b075, | |
405 | 0x0080ac52, 0x3fa03c35, 0x05a1b875, | |
406 | 0x00c0c056, 0x3f803030, 0x0561c473, | |
407 | 0x0100d45b, 0x3f70202b, 0x0521d46f, | |
408 | 0x0140e860, 0x3f601427, 0x04d1d46e, | |
409 | 0x01810064, 0x3f500822, 0x0491dc6b }, | |
410 | }, | |
411 | { 0x5000, { | |
412 | 0x0110a442, 0x0110a442, 0x0551545e, | |
413 | 0x0140b045, 0x00e0983f, 0x0531585f, | |
414 | 0x0160c047, 0x00c08c3c, 0x0511645e, | |
415 | 0x0190cc4a, 0x00908039, 0x04f1685f, | |
416 | 0x01c0dc4c, 0x00707436, 0x04d1705e, | |
417 | 0x0200e850, 0x00506833, 0x04b1785b, | |
418 | 0x0230f453, 0x00305c30, 0x0491805a, | |
419 | 0x02710056, 0x0010542d, 0x04718059 }, | |
420 | }, | |
421 | { 0x6000, { | |
422 | 0x01c0bc40, 0x01c0bc40, 0x04c13052, | |
423 | 0x01e0c841, 0x01a0b43d, 0x04c13851, | |
424 | 0x0210cc44, 0x0180a83c, 0x04a13453, | |
425 | 0x0230d845, 0x0160a03a, 0x04913c52, | |
426 | 0x0260e047, 0x01409838, 0x04714052, | |
427 | 0x0280ec49, 0x01208c37, 0x04514c50, | |
428 | 0x02b0f44b, 0x01008435, 0x04414c50, | |
429 | 0x02d1004c, 0x00e07c33, 0x0431544f }, | |
430 | }, | |
431 | { 0x7000, { | |
432 | 0x0230c83e, 0x0230c83e, 0x04711c4c, | |
433 | 0x0250d03f, 0x0210c43c, 0x0471204b, | |
434 | 0x0270d840, 0x0200b83c, 0x0451244b, | |
435 | 0x0290dc42, 0x01e0b43a, 0x0441244c, | |
436 | 0x02b0e443, 0x01c0b038, 0x0441284b, | |
437 | 0x02d0ec44, 0x01b0a438, 0x0421304a, | |
438 | 0x02f0f445, 0x0190a036, 0x04213449, | |
439 | 0x0310f847, 0x01709c34, 0x04213848 }, | |
440 | }, | |
441 | { 0x8000, { | |
442 | 0x0280d03d, 0x0280d03d, 0x04310c48, | |
443 | 0x02a0d43e, 0x0270c83c, 0x04311047, | |
444 | 0x02b0dc3e, 0x0250c83a, 0x04311447, | |
445 | 0x02d0e040, 0x0240c03a, 0x04211446, | |
446 | 0x02e0e840, 0x0220bc39, 0x04111847, | |
447 | 0x0300e842, 0x0210b438, 0x04012445, | |
448 | 0x0310f043, 0x0200b037, 0x04012045, | |
449 | 0x0330f444, 0x01e0ac36, 0x03f12445 }, | |
450 | }, | |
451 | { 0xefff, { | |
452 | 0x0340dc3a, 0x0340dc3a, 0x03b0ec40, | |
453 | 0x0340e03a, 0x0330e039, 0x03c0f03e, | |
454 | 0x0350e03b, 0x0330dc39, 0x03c0ec3e, | |
455 | 0x0350e43a, 0x0320dc38, 0x03c0f43e, | |
456 | 0x0360e43b, 0x0320d839, 0x03b0f03e, | |
457 | 0x0360e83b, 0x0310d838, 0x03c0fc3b, | |
458 | 0x0370e83b, 0x0310d439, 0x03a0f83d, | |
459 | 0x0370e83c, 0x0300d438, 0x03b0fc3c }, | |
460 | } | |
461 | }; | |
462 | ||
73135e96 VB |
463 | enum rcar_vin_state { |
464 | STOPPED = 0, | |
465 | RUNNING, | |
466 | STOPPING, | |
467 | }; | |
468 | ||
469 | struct rcar_vin_priv { | |
470 | void __iomem *base; | |
471 | spinlock_t lock; | |
472 | int sequence; | |
473 | /* State of the VIN module in capturing mode */ | |
474 | enum rcar_vin_state state; | |
73135e96 VB |
475 | struct soc_camera_host ici; |
476 | struct list_head capture; | |
477 | #define MAX_BUFFER_NUM 3 | |
478 | struct vb2_buffer *queue_buf[MAX_BUFFER_NUM]; | |
479 | struct vb2_alloc_ctx *alloc_ctx; | |
480 | enum v4l2_field field; | |
25dfa02c | 481 | unsigned int pdata_flags; |
73135e96 VB |
482 | unsigned int vb_count; |
483 | unsigned int nr_hw_slots; | |
484 | bool request_to_stop; | |
485 | struct completion capture_stop; | |
486 | enum chip_id chip; | |
487 | }; | |
488 | ||
489 | #define is_continuous_transfer(priv) (priv->vb_count > MAX_BUFFER_NUM) | |
490 | ||
491 | struct rcar_vin_buffer { | |
492 | struct vb2_buffer vb; | |
493 | struct list_head list; | |
494 | }; | |
495 | ||
496 | #define to_buf_list(vb2_buffer) (&container_of(vb2_buffer, \ | |
497 | struct rcar_vin_buffer, \ | |
498 | vb)->list) | |
499 | ||
500 | struct rcar_vin_cam { | |
501 | /* VIN offsets within the camera output, before the VIN scaler */ | |
502 | unsigned int vin_left; | |
503 | unsigned int vin_top; | |
504 | /* Client output, as seen by the VIN */ | |
505 | unsigned int width; | |
506 | unsigned int height; | |
4c28078c KM |
507 | /* User window from S_FMT */ |
508 | unsigned int out_width; | |
509 | unsigned int out_height; | |
73135e96 VB |
510 | /* |
511 | * User window from S_CROP / G_CROP, produced by client cropping and | |
512 | * scaling, VIN scaling and VIN cropping, mapped back onto the client | |
513 | * input window | |
514 | */ | |
515 | struct v4l2_rect subrect; | |
516 | /* Camera cropping rectangle */ | |
517 | struct v4l2_rect rect; | |
518 | const struct soc_mbus_pixelfmt *extra_fmt; | |
519 | }; | |
520 | ||
521 | /* | |
522 | * .queue_setup() is called to check whether the driver can accept the requested | |
523 | * number of buffers and to fill in plane sizes for the current frame format if | |
524 | * required | |
525 | */ | |
526 | static int rcar_vin_videobuf_setup(struct vb2_queue *vq, | |
527 | const struct v4l2_format *fmt, | |
528 | unsigned int *count, | |
529 | unsigned int *num_planes, | |
530 | unsigned int sizes[], void *alloc_ctxs[]) | |
531 | { | |
532 | struct soc_camera_device *icd = soc_camera_from_vb2q(vq); | |
533 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
534 | struct rcar_vin_priv *priv = ici->priv; | |
535 | ||
536 | if (fmt) { | |
537 | const struct soc_camera_format_xlate *xlate; | |
538 | unsigned int bytes_per_line; | |
539 | int ret; | |
540 | ||
541 | xlate = soc_camera_xlate_by_fourcc(icd, | |
542 | fmt->fmt.pix.pixelformat); | |
543 | if (!xlate) | |
544 | return -EINVAL; | |
545 | ret = soc_mbus_bytes_per_line(fmt->fmt.pix.width, | |
546 | xlate->host_fmt); | |
547 | if (ret < 0) | |
548 | return ret; | |
549 | ||
550 | bytes_per_line = max_t(u32, fmt->fmt.pix.bytesperline, ret); | |
551 | ||
552 | ret = soc_mbus_image_size(xlate->host_fmt, bytes_per_line, | |
553 | fmt->fmt.pix.height); | |
554 | if (ret < 0) | |
555 | return ret; | |
556 | ||
557 | sizes[0] = max_t(u32, fmt->fmt.pix.sizeimage, ret); | |
558 | } else { | |
559 | /* Called from VIDIOC_REQBUFS or in compatibility mode */ | |
560 | sizes[0] = icd->sizeimage; | |
561 | } | |
562 | ||
563 | alloc_ctxs[0] = priv->alloc_ctx; | |
564 | ||
565 | if (!vq->num_buffers) | |
566 | priv->sequence = 0; | |
567 | ||
568 | if (!*count) | |
569 | *count = 2; | |
570 | priv->vb_count = *count; | |
571 | ||
572 | *num_planes = 1; | |
573 | ||
574 | /* Number of hardware slots */ | |
575 | if (is_continuous_transfer(priv)) | |
576 | priv->nr_hw_slots = MAX_BUFFER_NUM; | |
577 | else | |
578 | priv->nr_hw_slots = 1; | |
579 | ||
580 | dev_dbg(icd->parent, "count=%d, size=%u\n", *count, sizes[0]); | |
581 | ||
582 | return 0; | |
583 | } | |
584 | ||
585 | static int rcar_vin_setup(struct rcar_vin_priv *priv) | |
586 | { | |
587 | struct soc_camera_device *icd = priv->ici.icd; | |
588 | struct rcar_vin_cam *cam = icd->host_priv; | |
589 | u32 vnmc, dmr, interrupts; | |
590 | bool progressive = false, output_is_yuv = false; | |
591 | ||
592 | switch (priv->field) { | |
593 | case V4L2_FIELD_TOP: | |
594 | vnmc = VNMC_IM_ODD; | |
595 | break; | |
596 | case V4L2_FIELD_BOTTOM: | |
597 | vnmc = VNMC_IM_EVEN; | |
598 | break; | |
599 | case V4L2_FIELD_INTERLACED: | |
600 | case V4L2_FIELD_INTERLACED_TB: | |
601 | vnmc = VNMC_IM_FULL; | |
602 | break; | |
603 | case V4L2_FIELD_INTERLACED_BT: | |
604 | vnmc = VNMC_IM_FULL | VNMC_FOC; | |
605 | break; | |
606 | case V4L2_FIELD_NONE: | |
607 | if (is_continuous_transfer(priv)) { | |
608 | vnmc = VNMC_IM_ODD_EVEN; | |
609 | progressive = true; | |
610 | } else { | |
611 | vnmc = VNMC_IM_ODD; | |
612 | } | |
613 | break; | |
614 | default: | |
615 | vnmc = VNMC_IM_ODD; | |
616 | break; | |
617 | } | |
618 | ||
619 | /* input interface */ | |
620 | switch (icd->current_fmt->code) { | |
27ffaeb0 | 621 | case MEDIA_BUS_FMT_YUYV8_1X16: |
73135e96 VB |
622 | /* BT.601/BT.1358 16bit YCbCr422 */ |
623 | vnmc |= VNMC_INF_YUV16; | |
624 | break; | |
27ffaeb0 | 625 | case MEDIA_BUS_FMT_YUYV8_2X8: |
73135e96 | 626 | /* BT.656 8bit YCbCr422 or BT.601 8bit YCbCr422 */ |
25dfa02c | 627 | vnmc |= priv->pdata_flags & RCAR_VIN_BT656 ? |
73135e96 | 628 | VNMC_INF_YUV8_BT656 : VNMC_INF_YUV8_BT601; |
cbe504d4 | 629 | break; |
27ffaeb0 | 630 | case MEDIA_BUS_FMT_YUYV10_2X10: |
cbe504d4 | 631 | /* BT.656 10bit YCbCr422 or BT.601 10bit YCbCr422 */ |
25dfa02c | 632 | vnmc |= priv->pdata_flags & RCAR_VIN_BT656 ? |
cbe504d4 PE |
633 | VNMC_INF_YUV10_BT656 : VNMC_INF_YUV10_BT601; |
634 | break; | |
73135e96 VB |
635 | default: |
636 | break; | |
637 | } | |
638 | ||
639 | /* output format */ | |
640 | switch (icd->current_fmt->host_fmt->fourcc) { | |
641 | case V4L2_PIX_FMT_NV16: | |
642 | iowrite32(ALIGN(cam->width * cam->height, 0x80), | |
643 | priv->base + VNUVAOF_REG); | |
644 | dmr = VNDMR_DTMD_YCSEP; | |
645 | output_is_yuv = true; | |
646 | break; | |
647 | case V4L2_PIX_FMT_YUYV: | |
648 | dmr = VNDMR_BPSM; | |
649 | output_is_yuv = true; | |
650 | break; | |
651 | case V4L2_PIX_FMT_UYVY: | |
652 | dmr = 0; | |
653 | output_is_yuv = true; | |
654 | break; | |
655 | case V4L2_PIX_FMT_RGB555X: | |
656 | dmr = VNDMR_DTMD_ARGB1555; | |
657 | break; | |
658 | case V4L2_PIX_FMT_RGB565: | |
659 | dmr = 0; | |
660 | break; | |
661 | case V4L2_PIX_FMT_RGB32: | |
2a9ecc17 | 662 | if (priv->chip == RCAR_GEN2 || priv->chip == RCAR_H1 || |
ca0c9f17 | 663 | priv->chip == RCAR_E1) { |
73135e96 VB |
664 | dmr = VNDMR_EXRGB; |
665 | break; | |
666 | } | |
667 | default: | |
668 | dev_warn(icd->parent, "Invalid fourcc format (0x%x)\n", | |
669 | icd->current_fmt->host_fmt->fourcc); | |
670 | return -EINVAL; | |
671 | } | |
672 | ||
673 | /* Always update on field change */ | |
674 | vnmc |= VNMC_VUP; | |
675 | ||
676 | /* If input and output use the same colorspace, use bypass mode */ | |
677 | if (output_is_yuv) | |
678 | vnmc |= VNMC_BPS; | |
679 | ||
680 | /* progressive or interlaced mode */ | |
e272d95f | 681 | interrupts = progressive ? VNIE_FIE : VNIE_EFE; |
73135e96 VB |
682 | |
683 | /* ack interrupts */ | |
684 | iowrite32(interrupts, priv->base + VNINTS_REG); | |
685 | /* enable interrupts */ | |
686 | iowrite32(interrupts, priv->base + VNIE_REG); | |
687 | /* start capturing */ | |
688 | iowrite32(dmr, priv->base + VNDMR_REG); | |
689 | iowrite32(vnmc | VNMC_ME, priv->base + VNMC_REG); | |
690 | ||
691 | return 0; | |
692 | } | |
693 | ||
694 | static void rcar_vin_capture(struct rcar_vin_priv *priv) | |
695 | { | |
696 | if (is_continuous_transfer(priv)) | |
697 | /* Continuous Frame Capture Mode */ | |
698 | iowrite32(VNFC_C_FRAME, priv->base + VNFC_REG); | |
699 | else | |
700 | /* Single Frame Capture Mode */ | |
701 | iowrite32(VNFC_S_FRAME, priv->base + VNFC_REG); | |
702 | } | |
703 | ||
704 | static void rcar_vin_request_capture_stop(struct rcar_vin_priv *priv) | |
705 | { | |
706 | priv->state = STOPPING; | |
707 | ||
708 | /* set continuous & single transfer off */ | |
709 | iowrite32(0, priv->base + VNFC_REG); | |
710 | /* disable capture (release DMA buffer), reset */ | |
711 | iowrite32(ioread32(priv->base + VNMC_REG) & ~VNMC_ME, | |
712 | priv->base + VNMC_REG); | |
713 | ||
714 | /* update the status if stopped already */ | |
715 | if (!(ioread32(priv->base + VNMS_REG) & VNMS_CA)) | |
716 | priv->state = STOPPED; | |
717 | } | |
718 | ||
719 | static int rcar_vin_get_free_hw_slot(struct rcar_vin_priv *priv) | |
720 | { | |
721 | int slot; | |
722 | ||
723 | for (slot = 0; slot < priv->nr_hw_slots; slot++) | |
724 | if (priv->queue_buf[slot] == NULL) | |
725 | return slot; | |
726 | ||
727 | return -1; | |
728 | } | |
729 | ||
730 | static int rcar_vin_hw_ready(struct rcar_vin_priv *priv) | |
731 | { | |
732 | /* Ensure all HW slots are filled */ | |
733 | return rcar_vin_get_free_hw_slot(priv) < 0 ? 1 : 0; | |
734 | } | |
735 | ||
736 | /* Moves a buffer from the queue to the HW slots */ | |
737 | static int rcar_vin_fill_hw_slot(struct rcar_vin_priv *priv) | |
738 | { | |
739 | struct vb2_buffer *vb; | |
740 | dma_addr_t phys_addr_top; | |
741 | int slot; | |
742 | ||
743 | if (list_empty(&priv->capture)) | |
744 | return 0; | |
745 | ||
746 | /* Find a free HW slot */ | |
747 | slot = rcar_vin_get_free_hw_slot(priv); | |
748 | if (slot < 0) | |
749 | return 0; | |
750 | ||
751 | vb = &list_entry(priv->capture.next, struct rcar_vin_buffer, list)->vb; | |
752 | list_del_init(to_buf_list(vb)); | |
753 | priv->queue_buf[slot] = vb; | |
754 | phys_addr_top = vb2_dma_contig_plane_dma_addr(vb, 0); | |
755 | iowrite32(phys_addr_top, priv->base + VNMB_REG(slot)); | |
756 | ||
757 | return 1; | |
758 | } | |
759 | ||
760 | static void rcar_vin_videobuf_queue(struct vb2_buffer *vb) | |
761 | { | |
762 | struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue); | |
763 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
764 | struct rcar_vin_priv *priv = ici->priv; | |
765 | unsigned long size; | |
766 | ||
767 | size = icd->sizeimage; | |
768 | ||
769 | if (vb2_plane_size(vb, 0) < size) { | |
770 | dev_err(icd->parent, "Buffer #%d too small (%lu < %lu)\n", | |
771 | vb->v4l2_buf.index, vb2_plane_size(vb, 0), size); | |
772 | goto error; | |
773 | } | |
774 | ||
775 | vb2_set_plane_payload(vb, 0, size); | |
776 | ||
777 | dev_dbg(icd->parent, "%s (vb=0x%p) 0x%p %lu\n", __func__, | |
778 | vb, vb2_plane_vaddr(vb, 0), vb2_get_plane_payload(vb, 0)); | |
779 | ||
780 | spin_lock_irq(&priv->lock); | |
781 | ||
782 | list_add_tail(to_buf_list(vb), &priv->capture); | |
783 | rcar_vin_fill_hw_slot(priv); | |
784 | ||
785 | /* If we weren't running, and have enough buffers, start capturing! */ | |
786 | if (priv->state != RUNNING && rcar_vin_hw_ready(priv)) { | |
787 | if (rcar_vin_setup(priv)) { | |
788 | /* Submit error */ | |
789 | list_del_init(to_buf_list(vb)); | |
790 | spin_unlock_irq(&priv->lock); | |
791 | goto error; | |
792 | } | |
793 | priv->request_to_stop = false; | |
794 | init_completion(&priv->capture_stop); | |
795 | priv->state = RUNNING; | |
796 | rcar_vin_capture(priv); | |
797 | } | |
798 | ||
799 | spin_unlock_irq(&priv->lock); | |
800 | ||
801 | return; | |
802 | ||
803 | error: | |
804 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); | |
805 | } | |
806 | ||
807 | static void rcar_vin_videobuf_release(struct vb2_buffer *vb) | |
808 | { | |
809 | struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue); | |
810 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
811 | struct rcar_vin_priv *priv = ici->priv; | |
812 | unsigned int i; | |
813 | int buf_in_use = 0; | |
814 | ||
815 | spin_lock_irq(&priv->lock); | |
816 | ||
817 | /* Is the buffer in use by the VIN hardware? */ | |
818 | for (i = 0; i < MAX_BUFFER_NUM; i++) { | |
819 | if (priv->queue_buf[i] == vb) { | |
820 | buf_in_use = 1; | |
821 | break; | |
822 | } | |
823 | } | |
824 | ||
825 | if (buf_in_use) { | |
826 | while (priv->state != STOPPED) { | |
827 | ||
828 | /* issue stop if running */ | |
829 | if (priv->state == RUNNING) | |
830 | rcar_vin_request_capture_stop(priv); | |
831 | ||
832 | /* wait until capturing has been stopped */ | |
833 | if (priv->state == STOPPING) { | |
834 | priv->request_to_stop = true; | |
835 | spin_unlock_irq(&priv->lock); | |
836 | wait_for_completion(&priv->capture_stop); | |
837 | spin_lock_irq(&priv->lock); | |
838 | } | |
839 | } | |
840 | /* | |
841 | * Capturing has now stopped. The buffer we have been asked | |
842 | * to release could be any of the current buffers in use, so | |
843 | * release all buffers that are in use by HW | |
844 | */ | |
845 | for (i = 0; i < MAX_BUFFER_NUM; i++) { | |
846 | if (priv->queue_buf[i]) { | |
847 | vb2_buffer_done(priv->queue_buf[i], | |
848 | VB2_BUF_STATE_ERROR); | |
849 | priv->queue_buf[i] = NULL; | |
850 | } | |
851 | } | |
852 | } else { | |
853 | list_del_init(to_buf_list(vb)); | |
854 | } | |
855 | ||
856 | spin_unlock_irq(&priv->lock); | |
857 | } | |
858 | ||
859 | static int rcar_vin_videobuf_init(struct vb2_buffer *vb) | |
860 | { | |
861 | INIT_LIST_HEAD(to_buf_list(vb)); | |
862 | return 0; | |
863 | } | |
864 | ||
e37559b2 | 865 | static void rcar_vin_stop_streaming(struct vb2_queue *vq) |
73135e96 VB |
866 | { |
867 | struct soc_camera_device *icd = soc_camera_from_vb2q(vq); | |
868 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
869 | struct rcar_vin_priv *priv = ici->priv; | |
870 | struct list_head *buf_head, *tmp; | |
871 | ||
872 | spin_lock_irq(&priv->lock); | |
873 | list_for_each_safe(buf_head, tmp, &priv->capture) | |
874 | list_del_init(buf_head); | |
875 | spin_unlock_irq(&priv->lock); | |
73135e96 VB |
876 | } |
877 | ||
878 | static struct vb2_ops rcar_vin_vb2_ops = { | |
879 | .queue_setup = rcar_vin_videobuf_setup, | |
880 | .buf_init = rcar_vin_videobuf_init, | |
881 | .buf_cleanup = rcar_vin_videobuf_release, | |
882 | .buf_queue = rcar_vin_videobuf_queue, | |
883 | .stop_streaming = rcar_vin_stop_streaming, | |
884 | .wait_prepare = soc_camera_unlock, | |
885 | .wait_finish = soc_camera_lock, | |
886 | }; | |
887 | ||
888 | static irqreturn_t rcar_vin_irq(int irq, void *data) | |
889 | { | |
890 | struct rcar_vin_priv *priv = data; | |
891 | u32 int_status; | |
892 | bool can_run = false, hw_stopped; | |
893 | int slot; | |
894 | unsigned int handled = 0; | |
895 | ||
896 | spin_lock(&priv->lock); | |
897 | ||
898 | int_status = ioread32(priv->base + VNINTS_REG); | |
899 | if (!int_status) | |
900 | goto done; | |
901 | /* ack interrupts */ | |
902 | iowrite32(int_status, priv->base + VNINTS_REG); | |
903 | handled = 1; | |
904 | ||
905 | /* nothing to do if capture status is 'STOPPED' */ | |
906 | if (priv->state == STOPPED) | |
907 | goto done; | |
908 | ||
909 | hw_stopped = !(ioread32(priv->base + VNMS_REG) & VNMS_CA); | |
910 | ||
911 | if (!priv->request_to_stop) { | |
912 | if (is_continuous_transfer(priv)) | |
913 | slot = (ioread32(priv->base + VNMS_REG) & | |
914 | VNMS_FBS_MASK) >> VNMS_FBS_SHIFT; | |
915 | else | |
916 | slot = 0; | |
917 | ||
918 | priv->queue_buf[slot]->v4l2_buf.field = priv->field; | |
919 | priv->queue_buf[slot]->v4l2_buf.sequence = priv->sequence++; | |
920 | do_gettimeofday(&priv->queue_buf[slot]->v4l2_buf.timestamp); | |
921 | vb2_buffer_done(priv->queue_buf[slot], VB2_BUF_STATE_DONE); | |
922 | priv->queue_buf[slot] = NULL; | |
923 | ||
924 | if (priv->state != STOPPING) | |
925 | can_run = rcar_vin_fill_hw_slot(priv); | |
926 | ||
927 | if (hw_stopped || !can_run) { | |
928 | priv->state = STOPPED; | |
929 | } else if (is_continuous_transfer(priv) && | |
930 | list_empty(&priv->capture) && | |
931 | priv->state == RUNNING) { | |
932 | /* | |
933 | * The continuous capturing requires an explicit stop | |
934 | * operation when there is no buffer to be set into | |
935 | * the VnMBm registers. | |
936 | */ | |
937 | rcar_vin_request_capture_stop(priv); | |
938 | } else { | |
939 | rcar_vin_capture(priv); | |
940 | } | |
941 | ||
942 | } else if (hw_stopped) { | |
943 | priv->state = STOPPED; | |
944 | priv->request_to_stop = false; | |
945 | complete(&priv->capture_stop); | |
946 | } | |
947 | ||
948 | done: | |
949 | spin_unlock(&priv->lock); | |
950 | ||
951 | return IRQ_RETVAL(handled); | |
952 | } | |
953 | ||
954 | static int rcar_vin_add_device(struct soc_camera_device *icd) | |
955 | { | |
956 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
957 | struct rcar_vin_priv *priv = ici->priv; | |
958 | int i; | |
959 | ||
960 | for (i = 0; i < MAX_BUFFER_NUM; i++) | |
961 | priv->queue_buf[i] = NULL; | |
962 | ||
963 | pm_runtime_get_sync(ici->v4l2_dev.dev); | |
964 | ||
965 | dev_dbg(icd->parent, "R-Car VIN driver attached to camera %d\n", | |
966 | icd->devnum); | |
967 | ||
968 | return 0; | |
969 | } | |
970 | ||
971 | static void rcar_vin_remove_device(struct soc_camera_device *icd) | |
972 | { | |
973 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
974 | struct rcar_vin_priv *priv = ici->priv; | |
975 | struct vb2_buffer *vb; | |
976 | int i; | |
977 | ||
978 | /* disable capture, disable interrupts */ | |
979 | iowrite32(ioread32(priv->base + VNMC_REG) & ~VNMC_ME, | |
980 | priv->base + VNMC_REG); | |
981 | iowrite32(0, priv->base + VNIE_REG); | |
982 | ||
983 | priv->state = STOPPED; | |
984 | priv->request_to_stop = false; | |
985 | ||
986 | /* make sure active buffer is cancelled */ | |
987 | spin_lock_irq(&priv->lock); | |
988 | for (i = 0; i < MAX_BUFFER_NUM; i++) { | |
989 | vb = priv->queue_buf[i]; | |
990 | if (vb) { | |
991 | list_del_init(to_buf_list(vb)); | |
992 | vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); | |
993 | } | |
994 | } | |
995 | spin_unlock_irq(&priv->lock); | |
996 | ||
997 | pm_runtime_put(ici->v4l2_dev.dev); | |
998 | ||
999 | dev_dbg(icd->parent, "R-Car VIN driver detached from camera %d\n", | |
1000 | icd->devnum); | |
1001 | } | |
1002 | ||
1003 | /* Called with .host_lock held */ | |
1004 | static int rcar_vin_clock_start(struct soc_camera_host *ici) | |
1005 | { | |
1006 | /* VIN does not have "mclk" */ | |
1007 | return 0; | |
1008 | } | |
1009 | ||
1010 | /* Called with .host_lock held */ | |
1011 | static void rcar_vin_clock_stop(struct soc_camera_host *ici) | |
1012 | { | |
1013 | /* VIN does not have "mclk" */ | |
1014 | } | |
1015 | ||
4c28078c KM |
1016 | static void set_coeff(struct rcar_vin_priv *priv, unsigned short xs) |
1017 | { | |
1018 | int i; | |
1019 | const struct vin_coeff *p_prev_set = NULL; | |
1020 | const struct vin_coeff *p_set = NULL; | |
1021 | ||
1022 | /* Look for suitable coefficient values */ | |
1023 | for (i = 0; i < ARRAY_SIZE(vin_coeff_set); i++) { | |
1024 | p_prev_set = p_set; | |
1025 | p_set = &vin_coeff_set[i]; | |
1026 | ||
1027 | if (xs < p_set->xs_value) | |
1028 | break; | |
1029 | } | |
1030 | ||
1031 | /* Use previous value if its XS value is closer */ | |
1032 | if (p_prev_set && p_set && | |
1033 | xs - p_prev_set->xs_value < p_set->xs_value - xs) | |
1034 | p_set = p_prev_set; | |
1035 | ||
1036 | /* Set coefficient registers */ | |
1037 | iowrite32(p_set->coeff_set[0], priv->base + VNC1A_REG); | |
1038 | iowrite32(p_set->coeff_set[1], priv->base + VNC1B_REG); | |
1039 | iowrite32(p_set->coeff_set[2], priv->base + VNC1C_REG); | |
1040 | ||
1041 | iowrite32(p_set->coeff_set[3], priv->base + VNC2A_REG); | |
1042 | iowrite32(p_set->coeff_set[4], priv->base + VNC2B_REG); | |
1043 | iowrite32(p_set->coeff_set[5], priv->base + VNC2C_REG); | |
1044 | ||
1045 | iowrite32(p_set->coeff_set[6], priv->base + VNC3A_REG); | |
1046 | iowrite32(p_set->coeff_set[7], priv->base + VNC3B_REG); | |
1047 | iowrite32(p_set->coeff_set[8], priv->base + VNC3C_REG); | |
1048 | ||
1049 | iowrite32(p_set->coeff_set[9], priv->base + VNC4A_REG); | |
1050 | iowrite32(p_set->coeff_set[10], priv->base + VNC4B_REG); | |
1051 | iowrite32(p_set->coeff_set[11], priv->base + VNC4C_REG); | |
1052 | ||
1053 | iowrite32(p_set->coeff_set[12], priv->base + VNC5A_REG); | |
1054 | iowrite32(p_set->coeff_set[13], priv->base + VNC5B_REG); | |
1055 | iowrite32(p_set->coeff_set[14], priv->base + VNC5C_REG); | |
1056 | ||
1057 | iowrite32(p_set->coeff_set[15], priv->base + VNC6A_REG); | |
1058 | iowrite32(p_set->coeff_set[16], priv->base + VNC6B_REG); | |
1059 | iowrite32(p_set->coeff_set[17], priv->base + VNC6C_REG); | |
1060 | ||
1061 | iowrite32(p_set->coeff_set[18], priv->base + VNC7A_REG); | |
1062 | iowrite32(p_set->coeff_set[19], priv->base + VNC7B_REG); | |
1063 | iowrite32(p_set->coeff_set[20], priv->base + VNC7C_REG); | |
1064 | ||
1065 | iowrite32(p_set->coeff_set[21], priv->base + VNC8A_REG); | |
1066 | iowrite32(p_set->coeff_set[22], priv->base + VNC8B_REG); | |
1067 | iowrite32(p_set->coeff_set[23], priv->base + VNC8C_REG); | |
1068 | } | |
1069 | ||
73135e96 VB |
1070 | /* rect is guaranteed to not exceed the scaled camera rectangle */ |
1071 | static int rcar_vin_set_rect(struct soc_camera_device *icd) | |
1072 | { | |
1073 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
1074 | struct rcar_vin_cam *cam = icd->host_priv; | |
1075 | struct rcar_vin_priv *priv = ici->priv; | |
1076 | unsigned int left_offset, top_offset; | |
1077 | unsigned char dsize = 0; | |
1078 | struct v4l2_rect *cam_subrect = &cam->subrect; | |
4c28078c | 1079 | u32 value; |
73135e96 VB |
1080 | |
1081 | dev_dbg(icd->parent, "Crop %ux%u@%u:%u\n", | |
1082 | icd->user_width, icd->user_height, cam->vin_left, cam->vin_top); | |
1083 | ||
1084 | left_offset = cam->vin_left; | |
1085 | top_offset = cam->vin_top; | |
1086 | ||
1087 | if (icd->current_fmt->host_fmt->fourcc == V4L2_PIX_FMT_RGB32 && | |
1088 | priv->chip == RCAR_E1) | |
1089 | dsize = 1; | |
1090 | ||
1091 | dev_dbg(icd->parent, "Cam %ux%u@%u:%u\n", | |
1092 | cam->width, cam->height, cam->vin_left, cam->vin_top); | |
1093 | dev_dbg(icd->parent, "Cam subrect %ux%u@%u:%u\n", | |
1094 | cam_subrect->width, cam_subrect->height, | |
1095 | cam_subrect->left, cam_subrect->top); | |
1096 | ||
1097 | /* Set Start/End Pixel/Line Pre-Clip */ | |
1098 | iowrite32(left_offset << dsize, priv->base + VNSPPRC_REG); | |
4c28078c | 1099 | iowrite32((left_offset + cam_subrect->width - 1) << dsize, |
73135e96 VB |
1100 | priv->base + VNEPPRC_REG); |
1101 | switch (priv->field) { | |
1102 | case V4L2_FIELD_INTERLACED: | |
1103 | case V4L2_FIELD_INTERLACED_TB: | |
1104 | case V4L2_FIELD_INTERLACED_BT: | |
1105 | iowrite32(top_offset / 2, priv->base + VNSLPRC_REG); | |
4c28078c | 1106 | iowrite32((top_offset + cam_subrect->height) / 2 - 1, |
73135e96 VB |
1107 | priv->base + VNELPRC_REG); |
1108 | break; | |
1109 | default: | |
1110 | iowrite32(top_offset, priv->base + VNSLPRC_REG); | |
4c28078c | 1111 | iowrite32(top_offset + cam_subrect->height - 1, |
73135e96 VB |
1112 | priv->base + VNELPRC_REG); |
1113 | break; | |
1114 | } | |
1115 | ||
4c28078c KM |
1116 | /* Set scaling coefficient */ |
1117 | value = 0; | |
1118 | if (cam_subrect->height != cam->out_height) | |
1119 | value = (4096 * cam_subrect->height) / cam->out_height; | |
1120 | dev_dbg(icd->parent, "YS Value: %x\n", value); | |
1121 | iowrite32(value, priv->base + VNYS_REG); | |
1122 | ||
1123 | value = 0; | |
1124 | if (cam_subrect->width != cam->out_width) | |
1125 | value = (4096 * cam_subrect->width) / cam->out_width; | |
1126 | ||
1127 | /* Horizontal upscaling is up to double size */ | |
1128 | if (0 < value && value < 2048) | |
1129 | value = 2048; | |
1130 | ||
1131 | dev_dbg(icd->parent, "XS Value: %x\n", value); | |
1132 | iowrite32(value, priv->base + VNXS_REG); | |
1133 | ||
1134 | /* Horizontal upscaling is carried out by scaling down from double size */ | |
1135 | if (value < 4096) | |
1136 | value *= 2; | |
1137 | ||
1138 | set_coeff(priv, value); | |
1139 | ||
73135e96 VB |
1140 | /* Set Start/End Pixel/Line Post-Clip */ |
1141 | iowrite32(0, priv->base + VNSPPOC_REG); | |
1142 | iowrite32(0, priv->base + VNSLPOC_REG); | |
4c28078c | 1143 | iowrite32((cam->out_width - 1) << dsize, priv->base + VNEPPOC_REG); |
73135e96 VB |
1144 | switch (priv->field) { |
1145 | case V4L2_FIELD_INTERLACED: | |
1146 | case V4L2_FIELD_INTERLACED_TB: | |
1147 | case V4L2_FIELD_INTERLACED_BT: | |
4c28078c | 1148 | iowrite32(cam->out_height / 2 - 1, |
73135e96 VB |
1149 | priv->base + VNELPOC_REG); |
1150 | break; | |
1151 | default: | |
4c28078c | 1152 | iowrite32(cam->out_height - 1, priv->base + VNELPOC_REG); |
73135e96 VB |
1153 | break; |
1154 | } | |
1155 | ||
4c28078c | 1156 | iowrite32(ALIGN(cam->out_width, 0x10), priv->base + VNIS_REG); |
73135e96 VB |
1157 | |
1158 | return 0; | |
1159 | } | |
1160 | ||
1161 | static void capture_stop_preserve(struct rcar_vin_priv *priv, u32 *vnmc) | |
1162 | { | |
1163 | *vnmc = ioread32(priv->base + VNMC_REG); | |
1164 | /* module disable */ | |
1165 | iowrite32(*vnmc & ~VNMC_ME, priv->base + VNMC_REG); | |
1166 | } | |
1167 | ||
1168 | static void capture_restore(struct rcar_vin_priv *priv, u32 vnmc) | |
1169 | { | |
1170 | unsigned long timeout = jiffies + 10 * HZ; | |
1171 | ||
1172 | /* | |
1173 | * Wait until the end of the current frame. It can take a long time, | |
1174 | * but if it has been aborted by a MRST1 reset, it should exit sooner. | |
1175 | */ | |
1176 | while ((ioread32(priv->base + VNMS_REG) & VNMS_AV) && | |
1177 | time_before(jiffies, timeout)) | |
1178 | msleep(1); | |
1179 | ||
1180 | if (time_after(jiffies, timeout)) { | |
1181 | dev_err(priv->ici.v4l2_dev.dev, | |
1182 | "Timeout waiting for frame end! Interface problem?\n"); | |
1183 | return; | |
1184 | } | |
1185 | ||
1186 | iowrite32(vnmc, priv->base + VNMC_REG); | |
1187 | } | |
1188 | ||
1189 | #define VIN_MBUS_FLAGS (V4L2_MBUS_MASTER | \ | |
1190 | V4L2_MBUS_PCLK_SAMPLE_RISING | \ | |
1191 | V4L2_MBUS_HSYNC_ACTIVE_HIGH | \ | |
1192 | V4L2_MBUS_HSYNC_ACTIVE_LOW | \ | |
1193 | V4L2_MBUS_VSYNC_ACTIVE_HIGH | \ | |
1194 | V4L2_MBUS_VSYNC_ACTIVE_LOW | \ | |
1195 | V4L2_MBUS_DATA_ACTIVE_HIGH) | |
1196 | ||
1197 | static int rcar_vin_set_bus_param(struct soc_camera_device *icd) | |
1198 | { | |
1199 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
1200 | struct rcar_vin_priv *priv = ici->priv; | |
1201 | struct v4l2_subdev *sd = soc_camera_to_subdev(icd); | |
1202 | struct v4l2_mbus_config cfg; | |
1203 | unsigned long common_flags; | |
1204 | u32 vnmc; | |
1205 | u32 val; | |
1206 | int ret; | |
1207 | ||
1208 | capture_stop_preserve(priv, &vnmc); | |
1209 | ||
1210 | ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg); | |
1211 | if (!ret) { | |
1212 | common_flags = soc_mbus_config_compatible(&cfg, VIN_MBUS_FLAGS); | |
1213 | if (!common_flags) { | |
1214 | dev_warn(icd->parent, | |
1215 | "MBUS flags incompatible: camera 0x%x, host 0x%x\n", | |
1216 | cfg.flags, VIN_MBUS_FLAGS); | |
1217 | return -EINVAL; | |
1218 | } | |
1219 | } else if (ret != -ENOIOCTLCMD) { | |
1220 | return ret; | |
1221 | } else { | |
1222 | common_flags = VIN_MBUS_FLAGS; | |
1223 | } | |
1224 | ||
1225 | /* Make choises, based on platform preferences */ | |
1226 | if ((common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) && | |
1227 | (common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) { | |
25dfa02c | 1228 | if (priv->pdata_flags & RCAR_VIN_HSYNC_ACTIVE_LOW) |
73135e96 VB |
1229 | common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_HIGH; |
1230 | else | |
1231 | common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_LOW; | |
1232 | } | |
1233 | ||
1234 | if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) && | |
1235 | (common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) { | |
25dfa02c | 1236 | if (priv->pdata_flags & RCAR_VIN_VSYNC_ACTIVE_LOW) |
73135e96 VB |
1237 | common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH; |
1238 | else | |
1239 | common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW; | |
1240 | } | |
1241 | ||
1242 | cfg.flags = common_flags; | |
1243 | ret = v4l2_subdev_call(sd, video, s_mbus_config, &cfg); | |
1244 | if (ret < 0 && ret != -ENOIOCTLCMD) | |
1245 | return ret; | |
1246 | ||
609f33c9 | 1247 | val = VNDMR2_FTEV | VNDMR2_VLV(1); |
73135e96 VB |
1248 | if (!(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) |
1249 | val |= VNDMR2_VPS; | |
1250 | if (!(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) | |
1251 | val |= VNDMR2_HPS; | |
1252 | iowrite32(val, priv->base + VNDMR2_REG); | |
1253 | ||
1254 | ret = rcar_vin_set_rect(icd); | |
1255 | if (ret < 0) | |
1256 | return ret; | |
1257 | ||
1258 | capture_restore(priv, vnmc); | |
1259 | ||
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | static int rcar_vin_try_bus_param(struct soc_camera_device *icd, | |
1264 | unsigned char buswidth) | |
1265 | { | |
1266 | struct v4l2_subdev *sd = soc_camera_to_subdev(icd); | |
1267 | struct v4l2_mbus_config cfg; | |
1268 | int ret; | |
1269 | ||
1270 | ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg); | |
1271 | if (ret == -ENOIOCTLCMD) | |
1272 | return 0; | |
1273 | else if (ret) | |
1274 | return ret; | |
1275 | ||
1276 | if (buswidth > 24) | |
1277 | return -EINVAL; | |
1278 | ||
1279 | /* check is there common mbus flags */ | |
1280 | ret = soc_mbus_config_compatible(&cfg, VIN_MBUS_FLAGS); | |
1281 | if (ret) | |
1282 | return 0; | |
1283 | ||
1284 | dev_warn(icd->parent, | |
1285 | "MBUS flags incompatible: camera 0x%x, host 0x%x\n", | |
1286 | cfg.flags, VIN_MBUS_FLAGS); | |
1287 | ||
1288 | return -EINVAL; | |
1289 | } | |
1290 | ||
1291 | static bool rcar_vin_packing_supported(const struct soc_mbus_pixelfmt *fmt) | |
1292 | { | |
1293 | return fmt->packing == SOC_MBUS_PACKING_NONE || | |
1294 | (fmt->bits_per_sample > 8 && | |
1295 | fmt->packing == SOC_MBUS_PACKING_EXTEND16); | |
1296 | } | |
1297 | ||
1298 | static const struct soc_mbus_pixelfmt rcar_vin_formats[] = { | |
1299 | { | |
1300 | .fourcc = V4L2_PIX_FMT_NV16, | |
1301 | .name = "NV16", | |
1302 | .bits_per_sample = 8, | |
1303 | .packing = SOC_MBUS_PACKING_2X8_PADHI, | |
1304 | .order = SOC_MBUS_ORDER_LE, | |
1305 | .layout = SOC_MBUS_LAYOUT_PLANAR_Y_C, | |
1306 | }, | |
e5d49a3e KM |
1307 | { |
1308 | .fourcc = V4L2_PIX_FMT_YUYV, | |
1309 | .name = "YUYV", | |
1310 | .bits_per_sample = 16, | |
1311 | .packing = SOC_MBUS_PACKING_NONE, | |
1312 | .order = SOC_MBUS_ORDER_LE, | |
1313 | .layout = SOC_MBUS_LAYOUT_PACKED, | |
1314 | }, | |
73135e96 VB |
1315 | { |
1316 | .fourcc = V4L2_PIX_FMT_UYVY, | |
1317 | .name = "UYVY", | |
1318 | .bits_per_sample = 16, | |
1319 | .packing = SOC_MBUS_PACKING_NONE, | |
1320 | .order = SOC_MBUS_ORDER_LE, | |
1321 | .layout = SOC_MBUS_LAYOUT_PACKED, | |
1322 | }, | |
1323 | { | |
1324 | .fourcc = V4L2_PIX_FMT_RGB565, | |
1325 | .name = "RGB565", | |
1326 | .bits_per_sample = 16, | |
1327 | .packing = SOC_MBUS_PACKING_NONE, | |
1328 | .order = SOC_MBUS_ORDER_LE, | |
1329 | .layout = SOC_MBUS_LAYOUT_PACKED, | |
1330 | }, | |
1331 | { | |
1332 | .fourcc = V4L2_PIX_FMT_RGB555X, | |
1333 | .name = "ARGB1555", | |
1334 | .bits_per_sample = 16, | |
1335 | .packing = SOC_MBUS_PACKING_NONE, | |
1336 | .order = SOC_MBUS_ORDER_LE, | |
1337 | .layout = SOC_MBUS_LAYOUT_PACKED, | |
1338 | }, | |
1339 | { | |
1340 | .fourcc = V4L2_PIX_FMT_RGB32, | |
1341 | .name = "RGB888", | |
1342 | .bits_per_sample = 32, | |
1343 | .packing = SOC_MBUS_PACKING_NONE, | |
1344 | .order = SOC_MBUS_ORDER_LE, | |
1345 | .layout = SOC_MBUS_LAYOUT_PACKED, | |
1346 | }, | |
1347 | }; | |
1348 | ||
1349 | static int rcar_vin_get_formats(struct soc_camera_device *icd, unsigned int idx, | |
1350 | struct soc_camera_format_xlate *xlate) | |
1351 | { | |
1352 | struct v4l2_subdev *sd = soc_camera_to_subdev(icd); | |
1353 | struct device *dev = icd->parent; | |
1354 | int ret, k, n; | |
1355 | int formats = 0; | |
1356 | struct rcar_vin_cam *cam; | |
27ffaeb0 | 1357 | u32 code; |
73135e96 VB |
1358 | const struct soc_mbus_pixelfmt *fmt; |
1359 | ||
1360 | ret = v4l2_subdev_call(sd, video, enum_mbus_fmt, idx, &code); | |
1361 | if (ret < 0) | |
1362 | return 0; | |
1363 | ||
1364 | fmt = soc_mbus_get_fmtdesc(code); | |
1365 | if (!fmt) { | |
1366 | dev_warn(dev, "unsupported format code #%u: %d\n", idx, code); | |
1367 | return 0; | |
1368 | } | |
1369 | ||
1370 | ret = rcar_vin_try_bus_param(icd, fmt->bits_per_sample); | |
1371 | if (ret < 0) | |
1372 | return 0; | |
1373 | ||
1374 | if (!icd->host_priv) { | |
1375 | struct v4l2_mbus_framefmt mf; | |
1376 | struct v4l2_rect rect; | |
1377 | struct device *dev = icd->parent; | |
1378 | int shift; | |
1379 | ||
1380 | ret = v4l2_subdev_call(sd, video, g_mbus_fmt, &mf); | |
1381 | if (ret < 0) | |
1382 | return ret; | |
1383 | ||
1384 | /* Cache current client geometry */ | |
1385 | ret = soc_camera_client_g_rect(sd, &rect); | |
1386 | if (ret == -ENOIOCTLCMD) { | |
1387 | /* Sensor driver doesn't support cropping */ | |
1388 | rect.left = 0; | |
1389 | rect.top = 0; | |
1390 | rect.width = mf.width; | |
1391 | rect.height = mf.height; | |
1392 | } else if (ret < 0) { | |
1393 | return ret; | |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * If sensor proposes too large format then try smaller ones: | |
1398 | * 1280x960, 640x480, 320x240 | |
1399 | */ | |
1400 | for (shift = 0; shift < 3; shift++) { | |
1401 | if (mf.width <= VIN_MAX_WIDTH && | |
1402 | mf.height <= VIN_MAX_HEIGHT) | |
1403 | break; | |
1404 | ||
1405 | mf.width = 1280 >> shift; | |
1406 | mf.height = 960 >> shift; | |
1407 | ret = v4l2_device_call_until_err(sd->v4l2_dev, | |
1408 | soc_camera_grp_id(icd), | |
1409 | video, s_mbus_fmt, | |
1410 | &mf); | |
1411 | if (ret < 0) | |
1412 | return ret; | |
1413 | } | |
1414 | ||
1415 | if (shift == 3) { | |
1416 | dev_err(dev, | |
197a47f2 | 1417 | "Failed to configure the client below %ux%u\n", |
73135e96 VB |
1418 | mf.width, mf.height); |
1419 | return -EIO; | |
1420 | } | |
1421 | ||
1422 | dev_dbg(dev, "camera fmt %ux%u\n", mf.width, mf.height); | |
1423 | ||
1424 | cam = kzalloc(sizeof(*cam), GFP_KERNEL); | |
1425 | if (!cam) | |
1426 | return -ENOMEM; | |
1427 | /* | |
1428 | * We are called with current camera crop, | |
1429 | * initialise subrect with it | |
1430 | */ | |
1431 | cam->rect = rect; | |
1432 | cam->subrect = rect; | |
1433 | cam->width = mf.width; | |
1434 | cam->height = mf.height; | |
4c28078c KM |
1435 | cam->out_width = mf.width; |
1436 | cam->out_height = mf.height; | |
73135e96 VB |
1437 | |
1438 | icd->host_priv = cam; | |
1439 | } else { | |
1440 | cam = icd->host_priv; | |
1441 | } | |
1442 | ||
1443 | /* Beginning of a pass */ | |
1444 | if (!idx) | |
1445 | cam->extra_fmt = NULL; | |
1446 | ||
1447 | switch (code) { | |
27ffaeb0 BB |
1448 | case MEDIA_BUS_FMT_YUYV8_1X16: |
1449 | case MEDIA_BUS_FMT_YUYV8_2X8: | |
1450 | case MEDIA_BUS_FMT_YUYV10_2X10: | |
73135e96 VB |
1451 | if (cam->extra_fmt) |
1452 | break; | |
1453 | ||
1454 | /* Add all our formats that can be generated by VIN */ | |
1455 | cam->extra_fmt = rcar_vin_formats; | |
1456 | ||
1457 | n = ARRAY_SIZE(rcar_vin_formats); | |
1458 | formats += n; | |
1459 | for (k = 0; xlate && k < n; k++, xlate++) { | |
1460 | xlate->host_fmt = &rcar_vin_formats[k]; | |
1461 | xlate->code = code; | |
1462 | dev_dbg(dev, "Providing format %s using code %d\n", | |
1463 | rcar_vin_formats[k].name, code); | |
1464 | } | |
1465 | break; | |
1466 | default: | |
1467 | if (!rcar_vin_packing_supported(fmt)) | |
1468 | return 0; | |
1469 | ||
1470 | dev_dbg(dev, "Providing format %s in pass-through mode\n", | |
1471 | fmt->name); | |
1472 | break; | |
1473 | } | |
1474 | ||
1475 | /* Generic pass-through */ | |
1476 | formats++; | |
1477 | if (xlate) { | |
1478 | xlate->host_fmt = fmt; | |
1479 | xlate->code = code; | |
1480 | xlate++; | |
1481 | } | |
1482 | ||
1483 | return formats; | |
1484 | } | |
1485 | ||
1486 | static void rcar_vin_put_formats(struct soc_camera_device *icd) | |
1487 | { | |
1488 | kfree(icd->host_priv); | |
1489 | icd->host_priv = NULL; | |
1490 | } | |
1491 | ||
1492 | static int rcar_vin_set_crop(struct soc_camera_device *icd, | |
1493 | const struct v4l2_crop *a) | |
1494 | { | |
1495 | struct v4l2_crop a_writable = *a; | |
1496 | const struct v4l2_rect *rect = &a_writable.c; | |
1497 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
1498 | struct rcar_vin_priv *priv = ici->priv; | |
1499 | struct v4l2_crop cam_crop; | |
1500 | struct rcar_vin_cam *cam = icd->host_priv; | |
1501 | struct v4l2_rect *cam_rect = &cam_crop.c; | |
1502 | struct v4l2_subdev *sd = soc_camera_to_subdev(icd); | |
1503 | struct device *dev = icd->parent; | |
1504 | struct v4l2_mbus_framefmt mf; | |
1505 | u32 vnmc; | |
1506 | int ret, i; | |
1507 | ||
1508 | dev_dbg(dev, "S_CROP(%ux%u@%u:%u)\n", rect->width, rect->height, | |
1509 | rect->left, rect->top); | |
1510 | ||
1511 | /* During camera cropping its output window can change too, stop VIN */ | |
1512 | capture_stop_preserve(priv, &vnmc); | |
1513 | dev_dbg(dev, "VNMC_REG 0x%x\n", vnmc); | |
1514 | ||
1515 | /* Apply iterative camera S_CROP for new input window. */ | |
1516 | ret = soc_camera_client_s_crop(sd, &a_writable, &cam_crop, | |
1517 | &cam->rect, &cam->subrect); | |
1518 | if (ret < 0) | |
1519 | return ret; | |
1520 | ||
1521 | dev_dbg(dev, "camera cropped to %ux%u@%u:%u\n", | |
1522 | cam_rect->width, cam_rect->height, | |
1523 | cam_rect->left, cam_rect->top); | |
1524 | ||
1525 | /* On success cam_crop contains current camera crop */ | |
1526 | ||
1527 | /* Retrieve camera output window */ | |
1528 | ret = v4l2_subdev_call(sd, video, g_mbus_fmt, &mf); | |
1529 | if (ret < 0) | |
1530 | return ret; | |
1531 | ||
1532 | if (mf.width > VIN_MAX_WIDTH || mf.height > VIN_MAX_HEIGHT) | |
1533 | return -EINVAL; | |
1534 | ||
1535 | /* Cache camera output window */ | |
1536 | cam->width = mf.width; | |
1537 | cam->height = mf.height; | |
1538 | ||
1539 | icd->user_width = cam->width; | |
1540 | icd->user_height = cam->height; | |
1541 | ||
1542 | cam->vin_left = rect->left & ~1; | |
1543 | cam->vin_top = rect->top & ~1; | |
1544 | ||
1545 | /* Use VIN cropping to crop to the new window. */ | |
1546 | ret = rcar_vin_set_rect(icd); | |
1547 | if (ret < 0) | |
1548 | return ret; | |
1549 | ||
1550 | cam->subrect = *rect; | |
1551 | ||
1552 | dev_dbg(dev, "VIN cropped to %ux%u@%u:%u\n", | |
1553 | icd->user_width, icd->user_height, | |
1554 | cam->vin_left, cam->vin_top); | |
1555 | ||
1556 | /* Restore capture */ | |
1557 | for (i = 0; i < MAX_BUFFER_NUM; i++) { | |
1558 | if (priv->queue_buf[i] && priv->state == STOPPED) { | |
1559 | vnmc |= VNMC_ME; | |
1560 | break; | |
1561 | } | |
1562 | } | |
1563 | capture_restore(priv, vnmc); | |
1564 | ||
1565 | /* Even if only camera cropping succeeded */ | |
1566 | return ret; | |
1567 | } | |
1568 | ||
1569 | static int rcar_vin_get_crop(struct soc_camera_device *icd, | |
1570 | struct v4l2_crop *a) | |
1571 | { | |
1572 | struct rcar_vin_cam *cam = icd->host_priv; | |
1573 | ||
1574 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1575 | a->c = cam->subrect; | |
1576 | ||
1577 | return 0; | |
1578 | } | |
1579 | ||
1580 | /* Similar to set_crop multistage iterative algorithm */ | |
1581 | static int rcar_vin_set_fmt(struct soc_camera_device *icd, | |
1582 | struct v4l2_format *f) | |
1583 | { | |
1584 | struct soc_camera_host *ici = to_soc_camera_host(icd->parent); | |
1585 | struct rcar_vin_priv *priv = ici->priv; | |
1586 | struct v4l2_subdev *sd = soc_camera_to_subdev(icd); | |
1587 | struct rcar_vin_cam *cam = icd->host_priv; | |
1588 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
1589 | struct v4l2_mbus_framefmt mf; | |
1590 | struct device *dev = icd->parent; | |
1591 | __u32 pixfmt = pix->pixelformat; | |
1592 | const struct soc_camera_format_xlate *xlate; | |
1593 | unsigned int vin_sub_width = 0, vin_sub_height = 0; | |
1594 | int ret; | |
1595 | bool can_scale; | |
1596 | enum v4l2_field field; | |
1597 | v4l2_std_id std; | |
1598 | ||
1599 | dev_dbg(dev, "S_FMT(pix=0x%x, %ux%u)\n", | |
1600 | pixfmt, pix->width, pix->height); | |
1601 | ||
1602 | switch (pix->field) { | |
1603 | default: | |
1604 | pix->field = V4L2_FIELD_NONE; | |
1605 | /* fall-through */ | |
1606 | case V4L2_FIELD_NONE: | |
1607 | case V4L2_FIELD_TOP: | |
1608 | case V4L2_FIELD_BOTTOM: | |
1609 | case V4L2_FIELD_INTERLACED_TB: | |
1610 | case V4L2_FIELD_INTERLACED_BT: | |
1611 | field = pix->field; | |
1612 | break; | |
1613 | case V4L2_FIELD_INTERLACED: | |
1614 | /* Query for standard if not explicitly mentioned _TB/_BT */ | |
1615 | ret = v4l2_subdev_call(sd, video, querystd, &std); | |
1616 | if (ret < 0) | |
1617 | std = V4L2_STD_625_50; | |
1618 | ||
1619 | field = std & V4L2_STD_625_50 ? V4L2_FIELD_INTERLACED_TB : | |
1620 | V4L2_FIELD_INTERLACED_BT; | |
1621 | break; | |
1622 | } | |
1623 | ||
1624 | xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); | |
1625 | if (!xlate) { | |
1626 | dev_warn(dev, "Format %x not found\n", pixfmt); | |
1627 | return -EINVAL; | |
1628 | } | |
1629 | /* Calculate client output geometry */ | |
1630 | soc_camera_calc_client_output(icd, &cam->rect, &cam->subrect, pix, &mf, | |
1631 | 12); | |
1632 | mf.field = pix->field; | |
1633 | mf.colorspace = pix->colorspace; | |
1634 | mf.code = xlate->code; | |
1635 | ||
1636 | switch (pixfmt) { | |
1637 | case V4L2_PIX_FMT_RGB32: | |
1638 | can_scale = priv->chip != RCAR_E1; | |
1639 | break; | |
1640 | case V4L2_PIX_FMT_UYVY: | |
1641 | case V4L2_PIX_FMT_YUYV: | |
1642 | case V4L2_PIX_FMT_RGB565: | |
1643 | case V4L2_PIX_FMT_RGB555X: | |
1644 | can_scale = true; | |
1645 | break; | |
1646 | default: | |
1647 | can_scale = false; | |
1648 | break; | |
1649 | } | |
1650 | ||
1651 | dev_dbg(dev, "request camera output %ux%u\n", mf.width, mf.height); | |
1652 | ||
1653 | ret = soc_camera_client_scale(icd, &cam->rect, &cam->subrect, | |
1654 | &mf, &vin_sub_width, &vin_sub_height, | |
1655 | can_scale, 12); | |
1656 | ||
1657 | /* Done with the camera. Now see if we can improve the result */ | |
1658 | dev_dbg(dev, "Camera %d fmt %ux%u, requested %ux%u\n", | |
1659 | ret, mf.width, mf.height, pix->width, pix->height); | |
1660 | ||
1661 | if (ret == -ENOIOCTLCMD) | |
1662 | dev_dbg(dev, "Sensor doesn't support scaling\n"); | |
1663 | else if (ret < 0) | |
1664 | return ret; | |
1665 | ||
1666 | if (mf.code != xlate->code) | |
1667 | return -EINVAL; | |
1668 | ||
1669 | /* Prepare VIN crop */ | |
1670 | cam->width = mf.width; | |
1671 | cam->height = mf.height; | |
1672 | ||
1673 | /* Use VIN scaling to scale to the requested user window. */ | |
1674 | ||
1675 | /* We cannot scale up */ | |
1676 | if (pix->width > vin_sub_width) | |
1677 | vin_sub_width = pix->width; | |
1678 | ||
1679 | if (pix->height > vin_sub_height) | |
1680 | vin_sub_height = pix->height; | |
1681 | ||
1682 | pix->colorspace = mf.colorspace; | |
1683 | ||
1684 | if (!can_scale) { | |
1685 | pix->width = vin_sub_width; | |
1686 | pix->height = vin_sub_height; | |
1687 | } | |
1688 | ||
1689 | /* | |
1690 | * We have calculated CFLCR, the actual configuration will be performed | |
1691 | * in rcar_vin_set_bus_param() | |
1692 | */ | |
1693 | ||
1694 | dev_dbg(dev, "W: %u : %u, H: %u : %u\n", | |
1695 | vin_sub_width, pix->width, vin_sub_height, pix->height); | |
1696 | ||
4c28078c KM |
1697 | cam->out_width = pix->width; |
1698 | cam->out_height = pix->height; | |
1699 | ||
73135e96 VB |
1700 | icd->current_fmt = xlate; |
1701 | ||
1702 | priv->field = field; | |
1703 | ||
1704 | return 0; | |
1705 | } | |
1706 | ||
1707 | static int rcar_vin_try_fmt(struct soc_camera_device *icd, | |
1708 | struct v4l2_format *f) | |
1709 | { | |
1710 | const struct soc_camera_format_xlate *xlate; | |
1711 | struct v4l2_pix_format *pix = &f->fmt.pix; | |
1712 | struct v4l2_subdev *sd = soc_camera_to_subdev(icd); | |
1713 | struct v4l2_mbus_framefmt mf; | |
1714 | __u32 pixfmt = pix->pixelformat; | |
1715 | int width, height; | |
1716 | int ret; | |
1717 | ||
1718 | xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); | |
1719 | if (!xlate) { | |
1720 | xlate = icd->current_fmt; | |
1721 | dev_dbg(icd->parent, "Format %x not found, keeping %x\n", | |
1722 | pixfmt, xlate->host_fmt->fourcc); | |
1723 | pixfmt = xlate->host_fmt->fourcc; | |
1724 | pix->pixelformat = pixfmt; | |
1725 | pix->colorspace = icd->colorspace; | |
1726 | } | |
1727 | ||
1728 | /* FIXME: calculate using depth and bus width */ | |
1729 | v4l_bound_align_image(&pix->width, 2, VIN_MAX_WIDTH, 1, | |
1730 | &pix->height, 4, VIN_MAX_HEIGHT, 2, 0); | |
1731 | ||
1732 | width = pix->width; | |
1733 | height = pix->height; | |
1734 | ||
1735 | /* let soc-camera calculate these values */ | |
1736 | pix->bytesperline = 0; | |
1737 | pix->sizeimage = 0; | |
1738 | ||
1739 | /* limit to sensor capabilities */ | |
1740 | mf.width = pix->width; | |
1741 | mf.height = pix->height; | |
1742 | mf.field = pix->field; | |
1743 | mf.code = xlate->code; | |
1744 | mf.colorspace = pix->colorspace; | |
1745 | ||
1746 | ret = v4l2_device_call_until_err(sd->v4l2_dev, soc_camera_grp_id(icd), | |
1747 | video, try_mbus_fmt, &mf); | |
1748 | if (ret < 0) | |
1749 | return ret; | |
1750 | ||
4c28078c KM |
1751 | /* Adjust only if VIN cannot scale */ |
1752 | if (pix->width > mf.width * 2) | |
1753 | pix->width = mf.width * 2; | |
1754 | if (pix->height > mf.height * 3) | |
1755 | pix->height = mf.height * 3; | |
1756 | ||
73135e96 VB |
1757 | pix->field = mf.field; |
1758 | pix->colorspace = mf.colorspace; | |
1759 | ||
1760 | if (pixfmt == V4L2_PIX_FMT_NV16) { | |
1761 | /* FIXME: check against rect_max after converting soc-camera */ | |
1762 | /* We can scale precisely, need a bigger image from camera */ | |
1763 | if (pix->width < width || pix->height < height) { | |
1764 | /* | |
1765 | * We presume, the sensor behaves sanely, i.e. if | |
1766 | * requested a bigger rectangle, it will not return a | |
1767 | * smaller one. | |
1768 | */ | |
1769 | mf.width = VIN_MAX_WIDTH; | |
1770 | mf.height = VIN_MAX_HEIGHT; | |
1771 | ret = v4l2_device_call_until_err(sd->v4l2_dev, | |
1772 | soc_camera_grp_id(icd), | |
1773 | video, try_mbus_fmt, | |
1774 | &mf); | |
1775 | if (ret < 0) { | |
1776 | dev_err(icd->parent, | |
1777 | "client try_fmt() = %d\n", ret); | |
1778 | return ret; | |
1779 | } | |
1780 | } | |
1781 | /* We will scale exactly */ | |
1782 | if (mf.width > width) | |
1783 | pix->width = width; | |
1784 | if (mf.height > height) | |
1785 | pix->height = height; | |
1786 | } | |
1787 | ||
1788 | return ret; | |
1789 | } | |
1790 | ||
1791 | static unsigned int rcar_vin_poll(struct file *file, poll_table *pt) | |
1792 | { | |
1793 | struct soc_camera_device *icd = file->private_data; | |
1794 | ||
1795 | return vb2_poll(&icd->vb2_vidq, file, pt); | |
1796 | } | |
1797 | ||
1798 | static int rcar_vin_querycap(struct soc_camera_host *ici, | |
1799 | struct v4l2_capability *cap) | |
1800 | { | |
1801 | strlcpy(cap->card, "R_Car_VIN", sizeof(cap->card)); | |
1802 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; | |
1803 | return 0; | |
1804 | } | |
1805 | ||
1806 | static int rcar_vin_init_videobuf2(struct vb2_queue *vq, | |
1807 | struct soc_camera_device *icd) | |
1808 | { | |
1809 | vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
1810 | vq->io_modes = VB2_MMAP | VB2_USERPTR; | |
1811 | vq->drv_priv = icd; | |
1812 | vq->ops = &rcar_vin_vb2_ops; | |
1813 | vq->mem_ops = &vb2_dma_contig_memops; | |
1814 | vq->buf_struct_size = sizeof(struct rcar_vin_buffer); | |
ade48681 | 1815 | vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; |
73135e96 VB |
1816 | |
1817 | return vb2_queue_init(vq); | |
1818 | } | |
1819 | ||
1820 | static struct soc_camera_host_ops rcar_vin_host_ops = { | |
1821 | .owner = THIS_MODULE, | |
1822 | .add = rcar_vin_add_device, | |
1823 | .remove = rcar_vin_remove_device, | |
1824 | .clock_start = rcar_vin_clock_start, | |
1825 | .clock_stop = rcar_vin_clock_stop, | |
1826 | .get_formats = rcar_vin_get_formats, | |
1827 | .put_formats = rcar_vin_put_formats, | |
1828 | .get_crop = rcar_vin_get_crop, | |
1829 | .set_crop = rcar_vin_set_crop, | |
1830 | .try_fmt = rcar_vin_try_fmt, | |
1831 | .set_fmt = rcar_vin_set_fmt, | |
1832 | .poll = rcar_vin_poll, | |
1833 | .querycap = rcar_vin_querycap, | |
1834 | .set_bus_param = rcar_vin_set_bus_param, | |
1835 | .init_videobuf2 = rcar_vin_init_videobuf2, | |
1836 | }; | |
1837 | ||
47c71bd6 BD |
1838 | #ifdef CONFIG_OF |
1839 | static struct of_device_id rcar_vin_of_table[] = { | |
76deaff8 YK |
1840 | { .compatible = "renesas,vin-r8a7794", .data = (void *)RCAR_GEN2 }, |
1841 | { .compatible = "renesas,vin-r8a7793", .data = (void *)RCAR_GEN2 }, | |
47c71bd6 BD |
1842 | { .compatible = "renesas,vin-r8a7791", .data = (void *)RCAR_GEN2 }, |
1843 | { .compatible = "renesas,vin-r8a7790", .data = (void *)RCAR_GEN2 }, | |
1844 | { .compatible = "renesas,vin-r8a7779", .data = (void *)RCAR_H1 }, | |
1845 | { .compatible = "renesas,vin-r8a7778", .data = (void *)RCAR_M1 }, | |
1846 | { }, | |
1847 | }; | |
1848 | MODULE_DEVICE_TABLE(of, rcar_vin_of_table); | |
1849 | #endif | |
1850 | ||
73135e96 | 1851 | static struct platform_device_id rcar_vin_id_table[] = { |
2a9ecc17 VB |
1852 | { "r8a7791-vin", RCAR_GEN2 }, |
1853 | { "r8a7790-vin", RCAR_GEN2 }, | |
73135e96 VB |
1854 | { "r8a7779-vin", RCAR_H1 }, |
1855 | { "r8a7778-vin", RCAR_M1 }, | |
1856 | { "uPD35004-vin", RCAR_E1 }, | |
1857 | {}, | |
1858 | }; | |
1859 | MODULE_DEVICE_TABLE(platform, rcar_vin_id_table); | |
1860 | ||
1861 | static int rcar_vin_probe(struct platform_device *pdev) | |
1862 | { | |
47c71bd6 | 1863 | const struct of_device_id *match = NULL; |
73135e96 VB |
1864 | struct rcar_vin_priv *priv; |
1865 | struct resource *mem; | |
1866 | struct rcar_vin_platform_data *pdata; | |
47c71bd6 | 1867 | unsigned int pdata_flags; |
73135e96 VB |
1868 | int irq, ret; |
1869 | ||
47c71bd6 BD |
1870 | if (pdev->dev.of_node) { |
1871 | struct v4l2_of_endpoint ep; | |
1872 | struct device_node *np; | |
1873 | ||
1874 | match = of_match_device(of_match_ptr(rcar_vin_of_table), | |
1875 | &pdev->dev); | |
1876 | ||
1877 | np = of_graph_get_next_endpoint(pdev->dev.of_node, NULL); | |
1878 | if (!np) { | |
1879 | dev_err(&pdev->dev, "could not find endpoint\n"); | |
1880 | return -EINVAL; | |
1881 | } | |
1882 | ||
1883 | ret = v4l2_of_parse_endpoint(np, &ep); | |
1884 | if (ret) { | |
1885 | dev_err(&pdev->dev, "could not parse endpoint\n"); | |
1886 | return ret; | |
1887 | } | |
1888 | ||
1889 | if (ep.bus_type == V4L2_MBUS_BT656) | |
1890 | pdata_flags = RCAR_VIN_BT656; | |
1891 | else { | |
1892 | pdata_flags = 0; | |
1893 | if (ep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) | |
1894 | pdata_flags |= RCAR_VIN_HSYNC_ACTIVE_LOW; | |
1895 | if (ep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) | |
1896 | pdata_flags |= RCAR_VIN_VSYNC_ACTIVE_LOW; | |
1897 | } | |
1898 | ||
1899 | of_node_put(np); | |
1900 | ||
1901 | dev_dbg(&pdev->dev, "pdata_flags = %08x\n", pdata_flags); | |
1902 | } else { | |
1903 | pdata = pdev->dev.platform_data; | |
1904 | if (!pdata || !pdata->flags) { | |
1905 | dev_err(&pdev->dev, "platform data not set\n"); | |
1906 | return -EINVAL; | |
1907 | } | |
1908 | pdata_flags = pdata->flags; | |
73135e96 VB |
1909 | } |
1910 | ||
1911 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1912 | if (mem == NULL) | |
1913 | return -EINVAL; | |
1914 | ||
1915 | irq = platform_get_irq(pdev, 0); | |
1916 | if (irq <= 0) | |
1917 | return -EINVAL; | |
1918 | ||
1919 | priv = devm_kzalloc(&pdev->dev, sizeof(struct rcar_vin_priv), | |
1920 | GFP_KERNEL); | |
1921 | if (!priv) | |
1922 | return -ENOMEM; | |
1923 | ||
1924 | priv->base = devm_ioremap_resource(&pdev->dev, mem); | |
1925 | if (IS_ERR(priv->base)) | |
1926 | return PTR_ERR(priv->base); | |
1927 | ||
1928 | ret = devm_request_irq(&pdev->dev, irq, rcar_vin_irq, IRQF_SHARED, | |
1929 | dev_name(&pdev->dev), priv); | |
1930 | if (ret) | |
1931 | return ret; | |
1932 | ||
1933 | priv->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); | |
1934 | if (IS_ERR(priv->alloc_ctx)) | |
1935 | return PTR_ERR(priv->alloc_ctx); | |
1936 | ||
1937 | priv->ici.priv = priv; | |
1938 | priv->ici.v4l2_dev.dev = &pdev->dev; | |
73135e96 VB |
1939 | priv->ici.drv_name = dev_name(&pdev->dev); |
1940 | priv->ici.ops = &rcar_vin_host_ops; | |
1941 | ||
47c71bd6 BD |
1942 | priv->pdata_flags = pdata_flags; |
1943 | if (!match) { | |
1944 | priv->ici.nr = pdev->id; | |
1945 | priv->chip = pdev->id_entry->driver_data; | |
1946 | } else { | |
1947 | priv->ici.nr = of_alias_get_id(pdev->dev.of_node, "vin"); | |
1948 | priv->chip = (enum chip_id)match->data; | |
c611c908 | 1949 | } |
47c71bd6 | 1950 | |
73135e96 VB |
1951 | spin_lock_init(&priv->lock); |
1952 | INIT_LIST_HEAD(&priv->capture); | |
1953 | ||
1954 | priv->state = STOPPED; | |
1955 | ||
1956 | pm_suspend_ignore_children(&pdev->dev, true); | |
1957 | pm_runtime_enable(&pdev->dev); | |
1958 | ||
1959 | ret = soc_camera_host_register(&priv->ici); | |
1960 | if (ret) | |
1961 | goto cleanup; | |
1962 | ||
1963 | return 0; | |
1964 | ||
1965 | cleanup: | |
1966 | pm_runtime_disable(&pdev->dev); | |
1967 | vb2_dma_contig_cleanup_ctx(priv->alloc_ctx); | |
1968 | ||
1969 | return ret; | |
1970 | } | |
1971 | ||
1972 | static int rcar_vin_remove(struct platform_device *pdev) | |
1973 | { | |
1974 | struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); | |
1975 | struct rcar_vin_priv *priv = container_of(soc_host, | |
1976 | struct rcar_vin_priv, ici); | |
1977 | ||
1978 | soc_camera_host_unregister(soc_host); | |
1979 | pm_runtime_disable(&pdev->dev); | |
1980 | vb2_dma_contig_cleanup_ctx(priv->alloc_ctx); | |
1981 | ||
1982 | return 0; | |
1983 | } | |
1984 | ||
1985 | static struct platform_driver rcar_vin_driver = { | |
1986 | .probe = rcar_vin_probe, | |
1987 | .remove = rcar_vin_remove, | |
1988 | .driver = { | |
1989 | .name = DRV_NAME, | |
47c71bd6 | 1990 | .of_match_table = of_match_ptr(rcar_vin_of_table), |
73135e96 VB |
1991 | }, |
1992 | .id_table = rcar_vin_id_table, | |
1993 | }; | |
1994 | ||
1995 | module_platform_driver(rcar_vin_driver); | |
1996 | ||
1997 | MODULE_LICENSE("GPL"); | |
1998 | MODULE_ALIAS("platform:rcar_vin"); | |
1999 | MODULE_DESCRIPTION("Renesas R-Car VIN camera host driver"); |