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de1135d4 LP |
1 | /* |
2 | * ispccdc.h | |
3 | * | |
4 | * TI OMAP3 ISP - CCDC module | |
5 | * | |
6 | * Copyright (C) 2009-2010 Nokia Corporation | |
7 | * Copyright (C) 2009 Texas Instruments, Inc. | |
8 | * | |
9 | * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> | |
10 | * Sakari Ailus <sakari.ailus@iki.fi> | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | * General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
24 | * 02110-1301 USA | |
25 | */ | |
26 | ||
27 | #ifndef OMAP3_ISP_CCDC_H | |
28 | #define OMAP3_ISP_CCDC_H | |
29 | ||
30 | #include <linux/omap3isp.h> | |
31 | #include <linux/workqueue.h> | |
32 | ||
33 | #include "ispvideo.h" | |
34 | ||
35 | enum ccdc_input_entity { | |
36 | CCDC_INPUT_NONE, | |
37 | CCDC_INPUT_PARALLEL, | |
38 | CCDC_INPUT_CSI2A, | |
39 | CCDC_INPUT_CCP2B, | |
40 | CCDC_INPUT_CSI2C | |
41 | }; | |
42 | ||
43 | #define CCDC_OUTPUT_MEMORY (1 << 0) | |
44 | #define CCDC_OUTPUT_PREVIEW (1 << 1) | |
45 | #define CCDC_OUTPUT_RESIZER (1 << 2) | |
46 | ||
47 | #define OMAP3ISP_CCDC_NEVENTS 16 | |
48 | ||
49 | /* | |
50 | * struct ispccdc_syncif - Structure for Sync Interface between sensor and CCDC | |
51 | * @ccdc_mastermode: Master mode. 1 - Master, 0 - Slave. | |
52 | * @fldstat: Field state. 0 - Odd Field, 1 - Even Field. | |
53 | * @datsz: Data size. | |
54 | * @fldmode: 0 - Progressive, 1 - Interlaced. | |
55 | * @datapol: 0 - Positive, 1 - Negative. | |
56 | * @fldpol: 0 - Positive, 1 - Negative. | |
57 | * @hdpol: 0 - Positive, 1 - Negative. | |
58 | * @vdpol: 0 - Positive, 1 - Negative. | |
59 | * @fldout: 0 - Input, 1 - Output. | |
60 | * @hs_width: Width of the Horizontal Sync pulse, used for HS/VS Output. | |
61 | * @vs_width: Width of the Vertical Sync pulse, used for HS/VS Output. | |
62 | * @ppln: Number of pixels per line, used for HS/VS Output. | |
63 | * @hlprf: Number of half lines per frame, used for HS/VS Output. | |
64 | * @bt_r656_en: 1 - Enable ITU-R BT656 mode, 0 - Sync mode. | |
65 | */ | |
66 | struct ispccdc_syncif { | |
67 | u8 ccdc_mastermode; | |
68 | u8 fldstat; | |
69 | u8 datsz; | |
70 | u8 fldmode; | |
71 | u8 datapol; | |
72 | u8 fldpol; | |
73 | u8 hdpol; | |
74 | u8 vdpol; | |
75 | u8 fldout; | |
76 | u8 hs_width; | |
77 | u8 vs_width; | |
78 | u8 ppln; | |
79 | u8 hlprf; | |
80 | u8 bt_r656_en; | |
81 | }; | |
82 | ||
83 | /* | |
84 | * struct ispccdc_vp - Structure for Video Port parameters | |
85 | * @pixelclk: Input pixel clock in Hz | |
86 | */ | |
87 | struct ispccdc_vp { | |
88 | unsigned int pixelclk; | |
89 | }; | |
90 | ||
91 | enum ispccdc_lsc_state { | |
92 | LSC_STATE_STOPPED = 0, | |
93 | LSC_STATE_STOPPING = 1, | |
94 | LSC_STATE_RUNNING = 2, | |
95 | LSC_STATE_RECONFIG = 3, | |
96 | }; | |
97 | ||
98 | struct ispccdc_lsc_config_req { | |
99 | struct list_head list; | |
100 | struct omap3isp_ccdc_lsc_config config; | |
101 | unsigned char enable; | |
102 | u32 table; | |
103 | struct iovm_struct *iovm; | |
104 | }; | |
105 | ||
106 | /* | |
107 | * ispccdc_lsc - CCDC LSC parameters | |
108 | * @update_config: Set when user changes config | |
109 | * @request_enable: Whether LSC is requested to be enabled | |
110 | * @config: LSC config set by user | |
111 | * @update_table: Set when user provides a new LSC table to table_new | |
112 | * @table_new: LSC table set by user, ISP address | |
113 | * @table_inuse: LSC table currently in use, ISP address | |
114 | */ | |
115 | struct ispccdc_lsc { | |
116 | enum ispccdc_lsc_state state; | |
117 | struct work_struct table_work; | |
118 | ||
119 | /* LSC queue of configurations */ | |
120 | spinlock_t req_lock; | |
121 | struct ispccdc_lsc_config_req *request; /* requested configuration */ | |
122 | struct ispccdc_lsc_config_req *active; /* active configuration */ | |
123 | struct list_head free_queue; /* configurations for freeing */ | |
124 | }; | |
125 | ||
126 | #define CCDC_STOP_NOT_REQUESTED 0x00 | |
127 | #define CCDC_STOP_REQUEST 0x01 | |
128 | #define CCDC_STOP_EXECUTED (0x02 | CCDC_STOP_REQUEST) | |
129 | #define CCDC_STOP_CCDC_FINISHED 0x04 | |
130 | #define CCDC_STOP_LSC_FINISHED 0x08 | |
131 | #define CCDC_STOP_FINISHED \ | |
132 | (CCDC_STOP_EXECUTED | CCDC_STOP_CCDC_FINISHED | CCDC_STOP_LSC_FINISHED) | |
133 | ||
134 | #define CCDC_EVENT_VD1 0x10 | |
135 | #define CCDC_EVENT_VD0 0x20 | |
136 | #define CCDC_EVENT_LSC_DONE 0x40 | |
137 | ||
138 | /* Sink and source CCDC pads */ | |
139 | #define CCDC_PAD_SINK 0 | |
140 | #define CCDC_PAD_SOURCE_OF 1 | |
141 | #define CCDC_PAD_SOURCE_VP 2 | |
142 | #define CCDC_PADS_NUM 3 | |
143 | ||
144 | /* | |
145 | * struct isp_ccdc_device - Structure for the CCDC module to store its own | |
146 | * information | |
147 | * @subdev: V4L2 subdevice | |
148 | * @pads: Sink and source media entity pads | |
149 | * @formats: Active video formats | |
150 | * @input: Active input | |
151 | * @output: Active outputs | |
152 | * @video_out: Output video node | |
25985edc | 153 | * @error: A hardware error occurred during capture |
de1135d4 LP |
154 | * @alaw: A-law compression enabled (1) or disabled (0) |
155 | * @lpf: Low pass filter enabled (1) or disabled (0) | |
156 | * @obclamp: Optical-black clamp enabled (1) or disabled (0) | |
157 | * @fpc_en: Faulty pixels correction enabled (1) or disabled (0) | |
158 | * @blcomp: Black level compensation configuration | |
159 | * @clamp: Optical-black or digital clamp configuration | |
160 | * @fpc: Faulty pixels correction configuration | |
161 | * @lsc: Lens shading compensation configuration | |
162 | * @update: Bitmask of controls to update during the next interrupt | |
163 | * @shadow_update: Controls update in progress by userspace | |
164 | * @syncif: Interface synchronization configuration | |
165 | * @vpcfg: Video port configuration | |
25985edc | 166 | * @underrun: A buffer underrun occurred and a new buffer has been queued |
de1135d4 LP |
167 | * @state: Streaming state |
168 | * @lock: Serializes shadow_update with interrupt handler | |
169 | * @wait: Wait queue used to stop the module | |
170 | * @stopping: Stopping state | |
171 | * @ioctl_lock: Serializes ioctl calls and LSC requests freeing | |
172 | */ | |
173 | struct isp_ccdc_device { | |
174 | struct v4l2_subdev subdev; | |
175 | struct media_pad pads[CCDC_PADS_NUM]; | |
176 | struct v4l2_mbus_framefmt formats[CCDC_PADS_NUM]; | |
177 | ||
178 | enum ccdc_input_entity input; | |
179 | unsigned int output; | |
180 | struct isp_video video_out; | |
181 | unsigned int error; | |
182 | ||
183 | unsigned int alaw:1, | |
184 | lpf:1, | |
185 | obclamp:1, | |
186 | fpc_en:1; | |
187 | struct omap3isp_ccdc_blcomp blcomp; | |
188 | struct omap3isp_ccdc_bclamp clamp; | |
189 | struct omap3isp_ccdc_fpc fpc; | |
190 | struct ispccdc_lsc lsc; | |
191 | unsigned int update; | |
192 | unsigned int shadow_update; | |
193 | ||
194 | struct ispccdc_syncif syncif; | |
195 | struct ispccdc_vp vpcfg; | |
196 | ||
197 | unsigned int underrun:1; | |
198 | enum isp_pipeline_stream_state state; | |
199 | spinlock_t lock; | |
200 | wait_queue_head_t wait; | |
201 | unsigned int stopping; | |
202 | struct mutex ioctl_lock; | |
203 | }; | |
204 | ||
205 | struct isp_device; | |
206 | ||
207 | int omap3isp_ccdc_init(struct isp_device *isp); | |
208 | void omap3isp_ccdc_cleanup(struct isp_device *isp); | |
209 | int omap3isp_ccdc_register_entities(struct isp_ccdc_device *ccdc, | |
210 | struct v4l2_device *vdev); | |
211 | void omap3isp_ccdc_unregister_entities(struct isp_ccdc_device *ccdc); | |
212 | ||
213 | int omap3isp_ccdc_busy(struct isp_ccdc_device *isp_ccdc); | |
214 | int omap3isp_ccdc_isr(struct isp_ccdc_device *isp_ccdc, u32 events); | |
215 | void omap3isp_ccdc_restore_context(struct isp_device *isp); | |
216 | void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc, | |
217 | unsigned int *max_rate); | |
218 | ||
219 | #endif /* OMAP3_ISP_CCDC_H */ |