| Josh Wu | 195ebc4 | 2011-06-07 22:40:19 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Register definitions for the Atmel Image Sensor Interface. |
| 3 | * |
| 4 | * Copyright (C) 2011 Atmel Corporation |
| 5 | * Josh Wu, <josh.wu@atmel.com> |
| 6 | * |
| 7 | * Based on previous work by Lars Haring, <lars.haring@atmel.com> |
| 8 | * and Sedji Gaouaou |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | */ |
| 14 | #ifndef __ATMEL_ISI_H__ |
| 15 | #define __ATMEL_ISI_H__ |
| 16 | |
| 17 | #include <linux/types.h> |
| 18 | |
| 19 | /* ISI_V2 register offsets */ |
| 20 | #define ISI_CFG1 0x0000 |
| 21 | #define ISI_CFG2 0x0004 |
| 22 | #define ISI_PSIZE 0x0008 |
| 23 | #define ISI_PDECF 0x000c |
| 24 | #define ISI_Y2R_SET0 0x0010 |
| 25 | #define ISI_Y2R_SET1 0x0014 |
| 26 | #define ISI_R2Y_SET0 0x0018 |
| 27 | #define ISI_R2Y_SET1 0x001C |
| 28 | #define ISI_R2Y_SET2 0x0020 |
| 29 | #define ISI_CTRL 0x0024 |
| 30 | #define ISI_STATUS 0x0028 |
| 31 | #define ISI_INTEN 0x002C |
| 32 | #define ISI_INTDIS 0x0030 |
| 33 | #define ISI_INTMASK 0x0034 |
| 34 | #define ISI_DMA_CHER 0x0038 |
| 35 | #define ISI_DMA_CHDR 0x003C |
| 36 | #define ISI_DMA_CHSR 0x0040 |
| 37 | #define ISI_DMA_P_ADDR 0x0044 |
| 38 | #define ISI_DMA_P_CTRL 0x0048 |
| 39 | #define ISI_DMA_P_DSCR 0x004C |
| 40 | #define ISI_DMA_C_ADDR 0x0050 |
| 41 | #define ISI_DMA_C_CTRL 0x0054 |
| 42 | #define ISI_DMA_C_DSCR 0x0058 |
| 43 | |
| 44 | /* Bitfields in CFG1 */ |
| 45 | #define ISI_CFG1_HSYNC_POL_ACTIVE_LOW (1 << 2) |
| 46 | #define ISI_CFG1_VSYNC_POL_ACTIVE_LOW (1 << 3) |
| 47 | #define ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING (1 << 4) |
| 48 | #define ISI_CFG1_EMB_SYNC (1 << 6) |
| 49 | #define ISI_CFG1_CRC_SYNC (1 << 7) |
| 50 | /* Constants for FRATE(ISI_V2) */ |
| 51 | #define ISI_CFG1_FRATE_CAPTURE_ALL (0 << 8) |
| 52 | #define ISI_CFG1_FRATE_DIV_2 (1 << 8) |
| 53 | #define ISI_CFG1_FRATE_DIV_3 (2 << 8) |
| 54 | #define ISI_CFG1_FRATE_DIV_4 (3 << 8) |
| 55 | #define ISI_CFG1_FRATE_DIV_5 (4 << 8) |
| 56 | #define ISI_CFG1_FRATE_DIV_6 (5 << 8) |
| 57 | #define ISI_CFG1_FRATE_DIV_7 (6 << 8) |
| 58 | #define ISI_CFG1_FRATE_DIV_8 (7 << 8) |
| 59 | #define ISI_CFG1_DISCR (1 << 11) |
| 60 | #define ISI_CFG1_FULL_MODE (1 << 12) |
| 61 | |
| 62 | /* Bitfields in CFG2 */ |
| 63 | #define ISI_CFG2_GRAYSCALE (1 << 13) |
| 64 | /* Constants for YCC_SWAP(ISI_V2) */ |
| 65 | #define ISI_CFG2_YCC_SWAP_DEFAULT (0 << 28) |
| 66 | #define ISI_CFG2_YCC_SWAP_MODE_1 (1 << 28) |
| 67 | #define ISI_CFG2_YCC_SWAP_MODE_2 (2 << 28) |
| 68 | #define ISI_CFG2_YCC_SWAP_MODE_3 (3 << 28) |
| 69 | #define ISI_CFG2_IM_VSIZE_OFFSET 0 |
| 70 | #define ISI_CFG2_IM_HSIZE_OFFSET 16 |
| 71 | #define ISI_CFG2_IM_VSIZE_MASK (0x7FF << ISI_CFG2_IM_VSIZE_OFFSET) |
| 72 | #define ISI_CFG2_IM_HSIZE_MASK (0x7FF << ISI_CFG2_IM_HSIZE_OFFSET) |
| 73 | |
| 74 | /* Bitfields in CTRL */ |
| 75 | /* Also using in SR(ISI_V2) */ |
| 76 | #define ISI_CTRL_EN (1 << 0) |
| 77 | #define ISI_CTRL_CDC (1 << 8) |
| 78 | /* Also using in SR/IER/IDR/IMR(ISI_V2) */ |
| 79 | #define ISI_CTRL_DIS (1 << 1) |
| 80 | #define ISI_CTRL_SRST (1 << 2) |
| 81 | |
| 82 | /* Bitfields in SR */ |
| 83 | #define ISI_SR_SIP (1 << 19) |
| 84 | /* Also using in SR/IER/IDR/IMR */ |
| 85 | #define ISI_SR_VSYNC (1 << 10) |
| 86 | #define ISI_SR_PXFR_DONE (1 << 16) |
| 87 | #define ISI_SR_CXFR_DONE (1 << 17) |
| 88 | #define ISI_SR_P_OVR (1 << 24) |
| 89 | #define ISI_SR_C_OVR (1 << 25) |
| 90 | #define ISI_SR_CRC_ERR (1 << 26) |
| 91 | #define ISI_SR_FR_OVR (1 << 27) |
| 92 | |
| 93 | /* Bitfields in DMA_C_CTRL & in DMA_P_CTRL */ |
| 94 | #define ISI_DMA_CTRL_FETCH (1 << 0) |
| 95 | #define ISI_DMA_CTRL_WB (1 << 1) |
| 96 | #define ISI_DMA_CTRL_IEN (1 << 2) |
| 97 | #define ISI_DMA_CTRL_DONE (1 << 3) |
| 98 | |
| 99 | /* Bitfields in DMA_CHSR/CHER/CHDR */ |
| 100 | #define ISI_DMA_CHSR_P_CH (1 << 0) |
| 101 | #define ISI_DMA_CHSR_C_CH (1 << 1) |
| 102 | |
| 103 | /* Definition for isi_platform_data */ |
| 104 | #define ISI_DATAWIDTH_8 0x01 |
| 105 | #define ISI_DATAWIDTH_10 0x02 |
| 106 | |
| 107 | struct isi_platform_data { |
| 108 | u8 has_emb_sync; |
| 109 | u8 emb_crc_sync; |
| 110 | u8 hsync_act_low; |
| 111 | u8 vsync_act_low; |
| 112 | u8 pclk_act_falling; |
| 113 | u8 isi_full_mode; |
| 114 | u32 data_width_flags; |
| 115 | /* Using for ISI_CFG1 */ |
| 116 | u32 frate; |
| 117 | }; |
| 118 | |
| 119 | #endif /* __ATMEL_ISI_H__ */ |