This patch adds Video Processing Front End (VPFE) driver for AM437X family of devices Driver supports the following: - V4L2 API using MMAP buffer access based on videobuf2 api - Asynchronous sensor/decoder sub device registration - DT support Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Darren Etheridge <detheridge@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> [hans.verkuil@cisco.com: swapped two lines to fix vpfe_release() & add pinctrl include] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
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| @@ -35,6 +35,7 @@ header-y += adfs_fs.h · 34 unmodified lines | ||
| 35 | 35 | header-y += affs_hardblocks.h |
| 36 | 36 | header-y += agpgart.h |
| 37 | 37 | header-y += aio_abi.h |
| 38 | +header-y += am437x-vpfe.h | |
| 38 | 39 | header-y += apm_bios.h |
| 39 | 40 | header-y += arcfb.h |
| 40 | 41 | header-y += atalk.h |
| @@ -0,0 +1,122 @@ | ||
| 1 | +/* | |
| 2 | + * Copyright (C) 2013 - 2014 Texas Instruments, Inc. | |
| 3 | + * | |
| 4 | + * Benoit Parrot <bparrot@ti.com> | |
| 5 | + * Lad, Prabhakar <prabhakar.csengg@gmail.com> | |
| 6 | + * | |
| 7 | + * This program is free software; you may redistribute it and/or modify | |
| 8 | + * it under the terms of the GNU General Public License as published by | |
| 9 | + * the Free Software Foundation; version 2 of the License. | |
| 10 | + * | |
| 11 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
| 12 | + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
| 13 | + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
| 14 | + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
| 15 | + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
| 16 | + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| 17 | + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| 18 | + * SOFTWARE. | |
| 19 | + */ | |
| 20 | + | |
| 21 | +#ifndef AM437X_VPFE_USER_H | |
| 22 | +#define AM437X_VPFE_USER_H | |
| 23 | + | |
| 24 | +enum vpfe_ccdc_data_size { | |
| 25 | + VPFE_CCDC_DATA_16BITS = 0, | |
| 26 | + VPFE_CCDC_DATA_15BITS, | |
| 27 | + VPFE_CCDC_DATA_14BITS, | |
| 28 | + VPFE_CCDC_DATA_13BITS, | |
| 29 | + VPFE_CCDC_DATA_12BITS, | |
| 30 | + VPFE_CCDC_DATA_11BITS, | |
| 31 | + VPFE_CCDC_DATA_10BITS, | |
| 32 | + VPFE_CCDC_DATA_8BITS, | |
| 33 | +}; | |
| 34 | + | |
| 35 | +/* enum for No of pixel per line to be avg. in Black Clamping*/ | |
| 36 | +enum vpfe_ccdc_sample_length { | |
| 37 | + VPFE_CCDC_SAMPLE_1PIXELS = 0, | |
| 38 | + VPFE_CCDC_SAMPLE_2PIXELS, | |
| 39 | + VPFE_CCDC_SAMPLE_4PIXELS, | |
| 40 | + VPFE_CCDC_SAMPLE_8PIXELS, | |
| 41 | + VPFE_CCDC_SAMPLE_16PIXELS, | |
| 42 | +}; | |
| 43 | + | |
| 44 | +/* enum for No of lines in Black Clamping */ | |
| 45 | +enum vpfe_ccdc_sample_line { | |
| 46 | + VPFE_CCDC_SAMPLE_1LINES = 0, | |
| 47 | + VPFE_CCDC_SAMPLE_2LINES, | |
| 48 | + VPFE_CCDC_SAMPLE_4LINES, | |
| 49 | + VPFE_CCDC_SAMPLE_8LINES, | |
| 50 | + VPFE_CCDC_SAMPLE_16LINES, | |
| 51 | +}; | |
| 52 | + | |
| 53 | +/* enum for Alaw gamma width */ | |
| 54 | +enum vpfe_ccdc_gamma_width { | |
| 55 | + VPFE_CCDC_GAMMA_BITS_15_6 = 0, /* use bits 15-6 for gamma */ | |
| 56 | + VPFE_CCDC_GAMMA_BITS_14_5, | |
| 57 | + VPFE_CCDC_GAMMA_BITS_13_4, | |
| 58 | + VPFE_CCDC_GAMMA_BITS_12_3, | |
| 59 | + VPFE_CCDC_GAMMA_BITS_11_2, | |
| 60 | + VPFE_CCDC_GAMMA_BITS_10_1, | |
| 61 | + VPFE_CCDC_GAMMA_BITS_09_0, /* use bits 9-0 for gamma */ | |
| 62 | +}; | |
| 63 | + | |
| 64 | +/* structure for ALaw */ | |
| 65 | +struct vpfe_ccdc_a_law { | |
| 66 | + /* Enable/disable A-Law */ | |
| 67 | + unsigned char enable; | |
| 68 | + /* Gamma Width Input */ | |
| 69 | + enum vpfe_ccdc_gamma_width gamma_wd; | |
| 70 | +}; | |
| 71 | + | |
| 72 | +/* structure for Black Clamping */ | |
| 73 | +struct vpfe_ccdc_black_clamp { | |
| 74 | + unsigned char enable; | |
| 75 | + /* only if bClampEnable is TRUE */ | |
| 76 | + enum vpfe_ccdc_sample_length sample_pixel; | |
| 77 | + /* only if bClampEnable is TRUE */ | |
| 78 | + enum vpfe_ccdc_sample_line sample_ln; | |
| 79 | + /* only if bClampEnable is TRUE */ | |
| 80 | + unsigned short start_pixel; | |
| 81 | + /* only if bClampEnable is TRUE */ | |
| 82 | + unsigned short sgain; | |
| 83 | + /* only if bClampEnable is FALSE */ | |
| 84 | + unsigned short dc_sub; | |
| 85 | +}; | |
| 86 | + | |
| 87 | +/* structure for Black Level Compensation */ | |
| 88 | +struct vpfe_ccdc_black_compensation { | |
| 89 | + /* Constant value to subtract from Red component */ | |
| 90 | + char r; | |
| 91 | + /* Constant value to subtract from Gr component */ | |
| 92 | + char gr; | |
| 93 | + /* Constant value to subtract from Blue component */ | |
| 94 | + char b; | |
| 95 | + /* Constant value to subtract from Gb component */ | |
| 96 | + char gb; | |
| 97 | +}; | |
| 98 | + | |
| 99 | +/* Structure for CCDC configuration parameters for raw capture mode passed | |
| 100 | + * by application | |
| 101 | + */ | |
| 102 | +struct vpfe_ccdc_config_params_raw { | |
| 103 | + /* data size value from 8 to 16 bits */ | |
| 104 | + enum vpfe_ccdc_data_size data_sz; | |
| 105 | + /* Structure for Optional A-Law */ | |
| 106 | + struct vpfe_ccdc_a_law alaw; | |
| 107 | + /* Structure for Optical Black Clamp */ | |
| 108 | + struct vpfe_ccdc_black_clamp blk_clamp; | |
| 109 | + /* Structure for Black Compensation */ | |
| 110 | + struct vpfe_ccdc_black_compensation blk_comp; | |
| 111 | +}; | |
| 112 | + | |
| 113 | +/* | |
| 114 | + * Private IOCTL | |
| 115 | + * VIDIOC_AM437X_CCDC_CFG - Set CCDC configuration for raw capture | |
| 116 | + * This is an experimental ioctl that will change in future kernels. So use | |
| 117 | + * this ioctl with care ! | |
| 118 | + **/ | |
| 119 | +#define VIDIOC_AM437X_CCDC_CFG \ | |
| 120 | + _IOW('V', BASE_VIDIOC_PRIVATE + 1, void *) | |
| 121 | + | |
| 122 | +#endif /* AM437X_VPFE_USER_H */ | |