mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-15 23:25:07 +00:00
b567bf86ee
This adds support for GREY and Y16 formats, based on Y10 mbus codes. Y16 needs to go through preview path in the ISI, with 2 pixels per word, and it fits the Y16 format. The ISI data lines need to be MSB aligned with the sensor data lines. GREY format in 8 bits per pixel is done by dropping the 2 LSB bits from the Y10 format, and packed as 4 pixels per word. Suggested-by: Wenyou Yang <wenyou.yang@microchip.com> Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
137 lines
4.2 KiB
C
137 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Register definitions for the Atmel Image Sensor Interface.
|
|
*
|
|
* Copyright (C) 2011 Atmel Corporation
|
|
* Josh Wu, <josh.wu@atmel.com>
|
|
*
|
|
* Based on previous work by Lars Haring, <lars.haring@atmel.com>
|
|
* and Sedji Gaouaou
|
|
*/
|
|
#ifndef __ATMEL_ISI_H__
|
|
#define __ATMEL_ISI_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
/* ISI_V2 register offsets */
|
|
#define ISI_CFG1 0x0000
|
|
#define ISI_CFG2 0x0004
|
|
#define ISI_PSIZE 0x0008
|
|
#define ISI_PDECF 0x000c
|
|
#define ISI_Y2R_SET0 0x0010
|
|
#define ISI_Y2R_SET1 0x0014
|
|
#define ISI_R2Y_SET0 0x0018
|
|
#define ISI_R2Y_SET1 0x001C
|
|
#define ISI_R2Y_SET2 0x0020
|
|
#define ISI_CTRL 0x0024
|
|
#define ISI_STATUS 0x0028
|
|
#define ISI_INTEN 0x002C
|
|
#define ISI_INTDIS 0x0030
|
|
#define ISI_INTMASK 0x0034
|
|
#define ISI_DMA_CHER 0x0038
|
|
#define ISI_DMA_CHDR 0x003C
|
|
#define ISI_DMA_CHSR 0x0040
|
|
#define ISI_DMA_P_ADDR 0x0044
|
|
#define ISI_DMA_P_CTRL 0x0048
|
|
#define ISI_DMA_P_DSCR 0x004C
|
|
#define ISI_DMA_C_ADDR 0x0050
|
|
#define ISI_DMA_C_CTRL 0x0054
|
|
#define ISI_DMA_C_DSCR 0x0058
|
|
|
|
/* Bitfields in CFG1 */
|
|
#define ISI_CFG1_HSYNC_POL_ACTIVE_LOW (1 << 2)
|
|
#define ISI_CFG1_VSYNC_POL_ACTIVE_LOW (1 << 3)
|
|
#define ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING (1 << 4)
|
|
#define ISI_CFG1_EMB_SYNC (1 << 6)
|
|
#define ISI_CFG1_CRC_SYNC (1 << 7)
|
|
/* Constants for FRATE(ISI_V2) */
|
|
#define ISI_CFG1_FRATE_CAPTURE_ALL (0 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_2 (1 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_3 (2 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_4 (3 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_5 (4 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_6 (5 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_7 (6 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_8 (7 << 8)
|
|
#define ISI_CFG1_FRATE_DIV_MASK (7 << 8)
|
|
#define ISI_CFG1_DISCR (1 << 11)
|
|
#define ISI_CFG1_FULL_MODE (1 << 12)
|
|
/* Definition for THMASK(ISI_V2) */
|
|
#define ISI_CFG1_THMASK_BEATS_4 (0 << 13)
|
|
#define ISI_CFG1_THMASK_BEATS_8 (1 << 13)
|
|
#define ISI_CFG1_THMASK_BEATS_16 (2 << 13)
|
|
|
|
/* Bitfields in CFG2 */
|
|
#define ISI_CFG2_GS_MODE_2_PIXEL (0 << 11)
|
|
#define ISI_CFG2_GS_MODE_1_PIXEL (1 << 11)
|
|
#define ISI_CFG2_GRAYSCALE (1 << 13)
|
|
#define ISI_CFG2_COL_SPACE_YCbCr (0 << 15)
|
|
#define ISI_CFG2_COL_SPACE_RGB (1 << 15)
|
|
/* Constants for YCC_SWAP(ISI_V2) */
|
|
#define ISI_CFG2_YCC_SWAP_DEFAULT (0 << 28)
|
|
#define ISI_CFG2_YCC_SWAP_MODE_1 (1 << 28)
|
|
#define ISI_CFG2_YCC_SWAP_MODE_2 (2 << 28)
|
|
#define ISI_CFG2_YCC_SWAP_MODE_3 (3 << 28)
|
|
#define ISI_CFG2_YCC_SWAP_MODE_MASK (3 << 28)
|
|
#define ISI_CFG2_IM_VSIZE_OFFSET 0
|
|
#define ISI_CFG2_IM_HSIZE_OFFSET 16
|
|
#define ISI_CFG2_IM_VSIZE_MASK (0x7FF << ISI_CFG2_IM_VSIZE_OFFSET)
|
|
#define ISI_CFG2_IM_HSIZE_MASK (0x7FF << ISI_CFG2_IM_HSIZE_OFFSET)
|
|
|
|
/* Bitfields in PSIZE */
|
|
#define ISI_PSIZE_PREV_VSIZE_OFFSET 0
|
|
#define ISI_PSIZE_PREV_HSIZE_OFFSET 16
|
|
#define ISI_PSIZE_PREV_VSIZE_MASK (0x3FF << ISI_PSIZE_PREV_VSIZE_OFFSET)
|
|
#define ISI_PSIZE_PREV_HSIZE_MASK (0x3FF << ISI_PSIZE_PREV_HSIZE_OFFSET)
|
|
|
|
/* Bitfields in PDECF */
|
|
#define ISI_PDECF_DEC_FACTOR_MASK (0xFF << 0)
|
|
#define ISI_PDECF_NO_SAMPLING (16)
|
|
|
|
/* Bitfields in CTRL */
|
|
/* Also using in SR(ISI_V2) */
|
|
#define ISI_CTRL_EN (1 << 0)
|
|
#define ISI_CTRL_CDC (1 << 8)
|
|
/* Also using in SR/IER/IDR/IMR(ISI_V2) */
|
|
#define ISI_CTRL_DIS (1 << 1)
|
|
#define ISI_CTRL_SRST (1 << 2)
|
|
|
|
/* Bitfields in SR */
|
|
#define ISI_SR_SIP (1 << 19)
|
|
/* Also using in SR/IER/IDR/IMR */
|
|
#define ISI_SR_VSYNC (1 << 10)
|
|
#define ISI_SR_PXFR_DONE (1 << 16)
|
|
#define ISI_SR_CXFR_DONE (1 << 17)
|
|
#define ISI_SR_P_OVR (1 << 24)
|
|
#define ISI_SR_C_OVR (1 << 25)
|
|
#define ISI_SR_CRC_ERR (1 << 26)
|
|
#define ISI_SR_FR_OVR (1 << 27)
|
|
|
|
/* Bitfields in DMA_C_CTRL & in DMA_P_CTRL */
|
|
#define ISI_DMA_CTRL_FETCH (1 << 0)
|
|
#define ISI_DMA_CTRL_WB (1 << 1)
|
|
#define ISI_DMA_CTRL_IEN (1 << 2)
|
|
#define ISI_DMA_CTRL_DONE (1 << 3)
|
|
|
|
/* Bitfields in DMA_CHSR/CHER/CHDR */
|
|
#define ISI_DMA_CHSR_P_CH (1 << 0)
|
|
#define ISI_DMA_CHSR_C_CH (1 << 1)
|
|
|
|
/* Definition for isi_platform_data */
|
|
#define ISI_DATAWIDTH_8 0x01
|
|
#define ISI_DATAWIDTH_10 0x02
|
|
|
|
struct v4l2_async_subdev;
|
|
|
|
struct isi_platform_data {
|
|
u8 has_emb_sync;
|
|
u8 hsync_act_low;
|
|
u8 vsync_act_low;
|
|
u8 pclk_act_falling;
|
|
u8 full_mode;
|
|
u32 data_width_flags;
|
|
/* Using for ISI_CFG1 */
|
|
u32 frate;
|
|
};
|
|
|
|
#endif /* __ATMEL_ISI_H__ */
|