1 /* 2 * Copyright (C) 2010 Texas Instruments Inc 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation version 2. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write to the Free Software 15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 16 */ 17 #ifndef _VPBE_H 18 #define _VPBE_H 19 20 #include <linux/videodev2.h> 21 #include <linux/i2c.h> 22 23 #include <media/v4l2-dev.h> 24 #include <media/v4l2-ioctl.h> 25 #include <media/v4l2-device.h> 26 #include <media/davinci/vpbe_osd.h> 27 #include <media/davinci/vpbe_venc.h> 28 #include <media/davinci/vpbe_types.h> 29 30 /* OSD configuration info */ 31 struct osd_config_info { 32 char module_name[32]; 33 }; 34 35 struct vpbe_output { 36 struct v4l2_output output; 37 /* 38 * If output capabilities include dv_preset, list supported presets 39 * below 40 */ 41 char *subdev_name; 42 /* 43 * defualt_mode identifies the default timings set at the venc or 44 * external encoder. 45 */ 46 char *default_mode; 47 /* 48 * Fields below are used for supporting multiple modes. For example, 49 * LCD panel might support different modes and they are listed here. 50 * Similarly for supporting external encoders, lcd controller port 51 * requires a set of non-standard timing values to be listed here for 52 * each supported mode since venc is used in non-standard timing mode 53 * for interfacing with external encoder similar to configuring lcd 54 * panel timings 55 */ 56 unsigned int num_modes; 57 struct vpbe_enc_mode_info *modes; 58 /* 59 * Bus configuration goes here for external encoders. Some encoders 60 * may require multiple interface types for each of the output. For 61 * example, SD modes would use YCC8 where as HD mode would use YCC16. 62 * Not sure if this is needed on a per mode basis instead of per 63 * output basis. If per mode is needed, we may have to move this to 64 * mode_info structure 65 */ 66 enum v4l2_mbus_pixelcode if_params; 67 }; 68 69 /* encoder configuration info */ 70 struct encoder_config_info { 71 char module_name[32]; 72 /* Is this an i2c device ? */ 73 unsigned int is_i2c:1; 74 /* i2c subdevice board info */ 75 struct i2c_board_info board_info; 76 }; 77 78 /*amplifier configuration info */ 79 struct amp_config_info { 80 char module_name[32]; 81 /* Is this an i2c device ? */ 82 unsigned int is_i2c:1; 83 /* i2c subdevice board info */ 84 struct i2c_board_info board_info; 85 }; 86 87 /* structure for defining vpbe display subsystem components */ 88 struct vpbe_config { 89 char module_name[32]; 90 /* i2c bus adapter no */ 91 int i2c_adapter_id; 92 struct osd_config_info osd; 93 struct encoder_config_info venc; 94 /* external encoder information goes here */ 95 int num_ext_encoders; 96 struct encoder_config_info *ext_encoders; 97 /* amplifier information goes here */ 98 struct amp_config_info *amp; 99 int num_outputs; 100 /* Order is venc outputs followed by LCD and then external encoders */ 101 struct vpbe_output *outputs; 102 }; 103 104 struct vpbe_device; 105 106 struct vpbe_device_ops { 107 /* crop cap for the display */ 108 int (*g_cropcap)(struct vpbe_device *vpbe_dev, 109 struct v4l2_cropcap *cropcap); 110 111 /* Enumerate the outputs */ 112 int (*enum_outputs)(struct vpbe_device *vpbe_dev, 113 struct v4l2_output *output); 114 115 /* Set output to the given index */ 116 int (*set_output)(struct vpbe_device *vpbe_dev, 117 int index); 118 119 /* Get current output */ 120 unsigned int (*get_output)(struct vpbe_device *vpbe_dev); 121 122 /* Set DV preset at current output */ 123 int (*s_dv_preset)(struct vpbe_device *vpbe_dev, 124 struct v4l2_dv_preset *dv_preset); 125 126 /* Get DV presets supported at the output */ 127 int (*g_dv_preset)(struct vpbe_device *vpbe_dev, 128 struct v4l2_dv_preset *dv_preset); 129 130 /* Enumerate the DV Presets supported at the output */ 131 int (*enum_dv_presets)(struct vpbe_device *vpbe_dev, 132 struct v4l2_dv_enum_preset *preset_info); 133 134 /* Set std at the output */ 135 int (*s_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id); 136 137 /* Get the current std at the output */ 138 int (*g_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id); 139 140 /* initialize the device */ 141 int (*initialize)(struct device *dev, struct vpbe_device *vpbe_dev); 142 143 /* De-initialize the device */ 144 void (*deinitialize)(struct device *dev, struct vpbe_device *vpbe_dev); 145 146 /* Get the current mode info */ 147 int (*get_mode_info)(struct vpbe_device *vpbe_dev, 148 struct vpbe_enc_mode_info*); 149 150 /* 151 * Set the current mode in the encoder. Alternate way of setting 152 * standard or DV preset or custom timings in the encoder 153 */ 154 int (*set_mode)(struct vpbe_device *vpbe_dev, 155 struct vpbe_enc_mode_info*); 156 /* Power management operations */ 157 int (*suspend)(struct vpbe_device *vpbe_dev); 158 int (*resume)(struct vpbe_device *vpbe_dev); 159 }; 160 161 /* struct for vpbe device */ 162 struct vpbe_device { 163 /* V4l2 device */ 164 struct v4l2_device v4l2_dev; 165 /* vpbe dispay controller cfg */ 166 struct vpbe_config *cfg; 167 /* parent device */ 168 struct device *pdev; 169 /* external encoder v4l2 sub devices */ 170 struct v4l2_subdev **encoders; 171 /* current encoder index */ 172 int current_sd_index; 173 /* external amplifier v4l2 subdevice */ 174 struct v4l2_subdev *amp; 175 struct mutex lock; 176 /* device initialized */ 177 int initialized; 178 /* vpbe dac clock */ 179 struct clk *dac_clk; 180 /* osd_device pointer */ 181 struct osd_state *osd_device; 182 /* venc device pointer */ 183 struct venc_platform_data *venc_device; 184 /* 185 * fields below are accessed by users of vpbe_device. Not the 186 * ones above 187 */ 188 189 /* current output */ 190 int current_out_index; 191 /* lock used by caller to do atomic operation on vpbe device */ 192 /* current timings set in the controller */ 193 struct vpbe_enc_mode_info current_timings; 194 /* venc sub device */ 195 struct v4l2_subdev *venc; 196 /* device operations below */ 197 struct vpbe_device_ops ops; 198 }; 199 200 #endif 201