| /* |
| * TI OMAP4 ISS V4L2 Driver - CSI2 module |
| * |
| * Copyright (C) 2012 Texas Instruments, Inc. |
| * |
| * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #ifndef OMAP4_ISS_CSI2_H |
| #define OMAP4_ISS_CSI2_H |
| |
| #include <linux/types.h> |
| #include <linux/videodev2.h> |
| |
| #include "iss_video.h" |
| |
| struct iss_csiphy; |
| |
| /* This is not an exhaustive list */ |
| enum iss_csi2_pix_formats { |
| CSI2_PIX_FMT_OTHERS = 0, |
| CSI2_PIX_FMT_YUV422_8BIT = 0x1e, |
| CSI2_PIX_FMT_YUV422_8BIT_VP = 0x9e, |
| CSI2_PIX_FMT_YUV422_8BIT_VP16 = 0xde, |
| CSI2_PIX_FMT_RAW10_EXP16 = 0xab, |
| CSI2_PIX_FMT_RAW10_EXP16_VP = 0x12f, |
| CSI2_PIX_FMT_RAW8 = 0x2a, |
| CSI2_PIX_FMT_RAW8_DPCM10_EXP16 = 0x2aa, |
| CSI2_PIX_FMT_RAW8_DPCM10_VP = 0x32a, |
| CSI2_PIX_FMT_RAW8_VP = 0x12a, |
| CSI2_USERDEF_8BIT_DATA1_DPCM10_VP = 0x340, |
| CSI2_USERDEF_8BIT_DATA1_DPCM10 = 0x2c0, |
| CSI2_USERDEF_8BIT_DATA1 = 0x40, |
| }; |
| |
| enum iss_csi2_irqevents { |
| OCP_ERR_IRQ = 0x4000, |
| SHORT_PACKET_IRQ = 0x2000, |
| ECC_CORRECTION_IRQ = 0x1000, |
| ECC_NO_CORRECTION_IRQ = 0x800, |
| COMPLEXIO2_ERR_IRQ = 0x400, |
| COMPLEXIO1_ERR_IRQ = 0x200, |
| FIFO_OVF_IRQ = 0x100, |
| CONTEXT7 = 0x80, |
| CONTEXT6 = 0x40, |
| CONTEXT5 = 0x20, |
| CONTEXT4 = 0x10, |
| CONTEXT3 = 0x8, |
| CONTEXT2 = 0x4, |
| CONTEXT1 = 0x2, |
| CONTEXT0 = 0x1, |
| }; |
| |
| enum iss_csi2_ctx_irqevents { |
| CTX_ECC_CORRECTION = 0x100, |
| CTX_LINE_NUMBER = 0x80, |
| CTX_FRAME_NUMBER = 0x40, |
| CTX_CS = 0x20, |
| CTX_LE = 0x8, |
| CTX_LS = 0x4, |
| CTX_FE = 0x2, |
| CTX_FS = 0x1, |
| }; |
| |
| enum iss_csi2_frame_mode { |
| ISS_CSI2_FRAME_IMMEDIATE, |
| ISS_CSI2_FRAME_AFTERFEC, |
| }; |
| |
| #define ISS_CSI2_MAX_CTX_NUM 7 |
| |
| struct iss_csi2_ctx_cfg { |
| u8 ctxnum; /* context number 0 - 7 */ |
| u8 dpcm_decompress; |
| |
| /* Fields in CSI2_CTx_CTRL2 - locked by CSI2_CTx_CTRL1.CTX_EN */ |
| u8 virtual_id; |
| u16 format_id; /* as in CSI2_CTx_CTRL2[9:0] */ |
| u8 dpcm_predictor; /* 1: simple, 0: advanced */ |
| u16 frame; |
| |
| /* Fields in CSI2_CTx_CTRL1/3 - Shadowed */ |
| u16 alpha; |
| u16 data_offset; |
| u32 ping_addr; |
| u32 pong_addr; |
| u8 eof_enabled; |
| u8 eol_enabled; |
| u8 checksum_enabled; |
| u8 enabled; |
| }; |
| |
| struct iss_csi2_timing_cfg { |
| u8 ionum; /* IO1 or IO2 as in CSI2_TIMING */ |
| unsigned force_rx_mode:1; |
| unsigned stop_state_16x:1; |
| unsigned stop_state_4x:1; |
| u16 stop_state_counter; |
| }; |
| |
| struct iss_csi2_ctrl_cfg { |
| bool vp_clk_enable; |
| bool vp_only_enable; |
| u8 vp_out_ctrl; |
| enum iss_csi2_frame_mode frame_mode; |
| bool ecc_enable; |
| bool if_enable; |
| }; |
| |
| #define CSI2_PAD_SINK 0 |
| #define CSI2_PAD_SOURCE 1 |
| #define CSI2_PADS_NUM 2 |
| |
| #define CSI2_OUTPUT_IPIPEIF BIT(0) |
| #define CSI2_OUTPUT_MEMORY BIT(1) |
| |
| struct iss_csi2_device { |
| struct v4l2_subdev subdev; |
| struct media_pad pads[CSI2_PADS_NUM]; |
| struct v4l2_mbus_framefmt formats[CSI2_PADS_NUM]; |
| |
| struct iss_video video_out; |
| struct iss_device *iss; |
| |
| u8 available; /* Is the IP present on the silicon? */ |
| |
| /* memory resources, as defined in enum iss_mem_resources */ |
| unsigned int regs1; |
| unsigned int regs2; |
| /* ISP subclock, as defined in enum iss_isp_subclk_resource */ |
| unsigned int subclk; |
| |
| u32 output; /* output to IPIPEIF, memory or both? */ |
| bool dpcm_decompress; |
| unsigned int frame_skip; |
| |
| struct iss_csiphy *phy; |
| struct iss_csi2_ctx_cfg contexts[ISS_CSI2_MAX_CTX_NUM + 1]; |
| struct iss_csi2_timing_cfg timing[2]; |
| struct iss_csi2_ctrl_cfg ctrl; |
| enum iss_pipeline_stream_state state; |
| wait_queue_head_t wait; |
| atomic_t stopping; |
| }; |
| |
| void omap4iss_csi2_isr(struct iss_csi2_device *csi2); |
| int omap4iss_csi2_reset(struct iss_csi2_device *csi2); |
| int omap4iss_csi2_init(struct iss_device *iss); |
| int omap4iss_csi2_create_pads_links(struct iss_device *iss); |
| void omap4iss_csi2_cleanup(struct iss_device *iss); |
| void omap4iss_csi2_unregister_entities(struct iss_csi2_device *csi2); |
| int omap4iss_csi2_register_entities(struct iss_csi2_device *csi2, |
| struct v4l2_device *vdev); |
| #endif /* OMAP4_ISS_CSI2_H */ |