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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2017 Intel Corporation */
#ifndef __IPU3_CIO2_H
#define __IPU3_CIO2_H
#include <linux/bits.h>
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/types.h>
#include <asm/page.h>
#include <media/media-device.h>
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
#include <media/videobuf2-core.h>
#include <media/videobuf2-v4l2.h>
struct cio2_fbpt_entry; /* defined here, after the first usage */
struct pci_dev;
#define CIO2_NAME "ipu3-cio2"
#define CIO2_DEVICE_NAME "Intel IPU3 CIO2"
#define CIO2_ENTITY_NAME "ipu3-csi2"
#define CIO2_PCI_ID 0x9d32
#define CIO2_PCI_BAR 0
#define CIO2_DMA_MASK DMA_BIT_MASK(39)
#define CIO2_IMAGE_MAX_WIDTH 4224U
#define CIO2_IMAGE_MAX_HEIGHT 3136U
/* 32MB = 8xFBPT_entry */
#define CIO2_MAX_LOPS 8
#define CIO2_MAX_BUFFERS (PAGE_SIZE / 16 / CIO2_MAX_LOPS)
#define CIO2_LOP_ENTRIES (PAGE_SIZE / sizeof(u32))
#define CIO2_PAD_SINK 0U
#define CIO2_PAD_SOURCE 1U
#define CIO2_PADS 2U
#define CIO2_NUM_DMA_CHAN 20U
#define CIO2_NUM_PORTS 4U /* DPHYs */
/* 1 for each sensor */
#define CIO2_QUEUES CIO2_NUM_PORTS
/* Register and bit field definitions */
#define CIO2_REG_PIPE_BASE(n) ((n) * 0x0400) /* n = 0..3 */
#define CIO2_REG_CSIRX_BASE 0x000
#define CIO2_REG_MIPIBE_BASE 0x100
#define CIO2_REG_PIXELGEN_BAS 0x200
#define CIO2_REG_IRQCTRL_BASE 0x300
#define CIO2_REG_GPREG_BASE 0x1000
/* base register: CIO2_REG_PIPE_BASE(pipe) * CIO2_REG_CSIRX_BASE */
#define CIO2_REG_CSIRX_ENABLE (CIO2_REG_CSIRX_BASE + 0x0)
#define CIO2_REG_CSIRX_NOF_ENABLED_LANES (CIO2_REG_CSIRX_BASE + 0x4)
#define CIO2_REG_CSIRX_SP_IF_CONFIG (CIO2_REG_CSIRX_BASE + 0x10)
#define CIO2_REG_CSIRX_LP_IF_CONFIG (CIO2_REG_CSIRX_BASE + 0x14)
#define CIO2_CSIRX_IF_CONFIG_FILTEROUT 0x00
#define CIO2_CSIRX_IF_CONFIG_FILTEROUT_VC_INACTIVE 0x01
#define CIO2_CSIRX_IF_CONFIG_PASS 0x02
#define CIO2_CSIRX_IF_CONFIG_FLAG_ERROR BIT(2)
#define CIO2_REG_CSIRX_STATUS (CIO2_REG_CSIRX_BASE + 0x18)
#define CIO2_REG_CSIRX_STATUS_DLANE_HS (CIO2_REG_CSIRX_BASE + 0x1c)
#define CIO2_CSIRX_STATUS_DLANE_HS_MASK 0xff
#define CIO2_REG_CSIRX_STATUS_DLANE_LP (CIO2_REG_CSIRX_BASE + 0x20)
#define CIO2_CSIRX_STATUS_DLANE_LP_MASK 0xffffff
/* Termination enable and settle in 0.0625ns units, lane=0..3 or -1 for clock */
#define CIO2_REG_CSIRX_DLY_CNT_TERMEN(lane) \
(CIO2_REG_CSIRX_BASE + 0x2c + 8 * (lane))
#define CIO2_REG_CSIRX_DLY_CNT_SETTLE(lane) \
(CIO2_REG_CSIRX_BASE + 0x30 + 8 * (lane))
/* base register: CIO2_REG_PIPE_BASE(pipe) * CIO2_REG_MIPIBE_BASE */
#define CIO2_REG_MIPIBE_ENABLE (CIO2_REG_MIPIBE_BASE + 0x0)
#define CIO2_REG_MIPIBE_STATUS (CIO2_REG_MIPIBE_BASE + 0x4)
#define CIO2_REG_MIPIBE_COMP_FORMAT(vc) \
(CIO2_REG_MIPIBE_BASE + 0x8 + 0x4 * (vc))
#define CIO2_REG_MIPIBE_FORCE_RAW8 (CIO2_REG_MIPIBE_BASE + 0x20)
#define CIO2_REG_MIPIBE_FORCE_RAW8_ENABLE BIT(0)
#define CIO2_REG_MIPIBE_FORCE_RAW8_USE_TYPEID BIT(1)
#define CIO2_REG_MIPIBE_FORCE_RAW8_TYPEID_SHIFT 2U
#define CIO2_REG_MIPIBE_IRQ_STATUS (CIO2_REG_MIPIBE_BASE + 0x24)
#define CIO2_REG_MIPIBE_IRQ_CLEAR (CIO2_REG_MIPIBE_BASE + 0x28)
#define CIO2_REG_MIPIBE_GLOBAL_LUT_DISREGARD (CIO2_REG_MIPIBE_BASE + 0x68)
#define CIO2_MIPIBE_GLOBAL_LUT_DISREGARD 1U
#define CIO2_REG_MIPIBE_PKT_STALL_STATUS (CIO2_REG_MIPIBE_BASE + 0x6c)
#define CIO2_REG_MIPIBE_PARSE_GSP_THROUGH_LP_LUT_REG_IDX \
(CIO2_REG_MIPIBE_BASE + 0x70)
#define CIO2_REG_MIPIBE_SP_LUT_ENTRY(vc) \
(CIO2_REG_MIPIBE_BASE + 0x74 + 4 * (vc))
#define CIO2_REG_MIPIBE_LP_LUT_ENTRY(m) /* m = 0..15 */ \
(CIO2_REG_MIPIBE_BASE + 0x84 + 4 * (m))
#define CIO2_MIPIBE_LP_LUT_ENTRY_DISREGARD 1U
#define CIO2_MIPIBE_LP_LUT_ENTRY_SID_SHIFT 1U
#define CIO2_MIPIBE_LP_LUT_ENTRY_VC_SHIFT 5U
#define CIO2_MIPIBE_LP_LUT_ENTRY_FORMAT_TYPE_SHIFT 7U
/* base register: CIO2_REG_PIPE_BASE(pipe) * CIO2_REG_IRQCTRL_BASE */
/* IRQ registers are 18-bit wide, see cio2_irq_error for bit definitions */
#define CIO2_REG_IRQCTRL_EDGE (CIO2_REG_IRQCTRL_BASE + 0x00)
#define CIO2_REG_IRQCTRL_MASK (CIO2_REG_IRQCTRL_BASE + 0x04)
#define CIO2_REG_IRQCTRL_STATUS (CIO2_REG_IRQCTRL_BASE + 0x08)
#define CIO2_REG_IRQCTRL_CLEAR (CIO2_REG_IRQCTRL_BASE + 0x0c)
#define CIO2_REG_IRQCTRL_ENABLE (CIO2_REG_IRQCTRL_BASE + 0x10)
#define CIO2_REG_IRQCTRL_LEVEL_NOT_PULSE (CIO2_REG_IRQCTRL_BASE + 0x14)
#define CIO2_REG_GPREG_SRST (CIO2_REG_GPREG_BASE + 0x0)
#define CIO2_GPREG_SRST_ALL 0xffff /* Reset all */
#define CIO2_REG_FB_HPLL_FREQ (CIO2_REG_GPREG_BASE + 0x08)
#define CIO2_REG_ISCLK_RATIO (CIO2_REG_GPREG_BASE + 0xc)
#define CIO2_REG_CGC 0x1400
#define CIO2_CGC_CSI2_TGE BIT(0)
#define CIO2_CGC_PRIM_TGE BIT(1)
#define CIO2_CGC_SIDE_TGE BIT(2)
#define CIO2_CGC_XOSC_TGE BIT(3)
#define CIO2_CGC_MPLL_SHUTDOWN_EN BIT(4)
#define CIO2_CGC_D3I3_TGE BIT(5)
#define CIO2_CGC_CSI2_INTERFRAME_TGE BIT(6)
#define CIO2_CGC_CSI2_PORT_DCGE BIT(8)
#define CIO2_CGC_CSI2_DCGE BIT(9)
#define CIO2_CGC_SIDE_DCGE BIT(10)
#define CIO2_CGC_PRIM_DCGE BIT(11)
#define CIO2_CGC_ROSC_DCGE BIT(12)
#define CIO2_CGC_XOSC_DCGE BIT(13)
#define CIO2_CGC_FLIS_DCGE BIT(14)
#define CIO2_CGC_CLKGATE_HOLDOFF_SHIFT 20U
#define CIO2_CGC_CSI_CLKGATE_HOLDOFF_SHIFT 24U
#define CIO2_REG_D0I3C 0x1408
#define CIO2_D0I3C_I3 BIT(2) /* Set D0I3 */
#define CIO2_D0I3C_RR BIT(3) /* Restore? */
#define CIO2_REG_SWRESET 0x140c
#define CIO2_SWRESET_SWRESET 1U
#define CIO2_REG_SENSOR_ACTIVE 0x1410
#define CIO2_REG_INT_STS 0x1414
#define CIO2_REG_INT_STS_EXT_OE 0x1418
#define CIO2_INT_EXT_OE_DMAOE_SHIFT 0U
#define CIO2_INT_EXT_OE_DMAOE_MASK 0x7ffff
#define CIO2_INT_EXT_OE_OES_SHIFT 24U
#define CIO2_INT_EXT_OE_OES_MASK (0xf << CIO2_INT_EXT_OE_OES_SHIFT)
#define CIO2_REG_INT_EN 0x1420
#define CIO2_REG_INT_EN_IRQ (1 << 24)
#define CIO2_REG_INT_EN_IOS(dma) (1U << (((dma) >> 1U) + 12U))
/*
* Interrupt on completion bit, Eg. DMA 0-3 maps to bit 0-3,
* DMA4 & DMA5 map to bit 4 ... DMA18 & DMA19 map to bit 11 Et cetera
*/
#define CIO2_INT_IOC(dma) (1U << ((dma) < 4U ? (dma) : ((dma) >> 1U) + 2U))
#define CIO2_INT_IOC_SHIFT 0
#define CIO2_INT_IOC_MASK (0x7ff << CIO2_INT_IOC_SHIFT)
#define CIO2_INT_IOS_IOLN(dma) (1U << (((dma) >> 1U) + 12U))
#define CIO2_INT_IOS_IOLN_SHIFT 12
#define CIO2_INT_IOS_IOLN_MASK (0x3ff << CIO2_INT_IOS_IOLN_SHIFT)
#define CIO2_INT_IOIE BIT(22)
#define CIO2_INT_IOOE BIT(23)
#define CIO2_INT_IOIRQ BIT(24)
#define CIO2_REG_INT_EN_EXT_OE 0x1424
#define CIO2_REG_DMA_DBG 0x1448
#define CIO2_REG_DMA_DBG_DMA_INDEX_SHIFT 0U
#define CIO2_REG_PBM_ARB_CTRL 0x1460
#define CIO2_PBM_ARB_CTRL_LANES_DIV 0U /* 4-4-2-2 lanes */
#define CIO2_PBM_ARB_CTRL_LANES_DIV_SHIFT 0U
#define CIO2_PBM_ARB_CTRL_LE_EN BIT(7)
#define CIO2_PBM_ARB_CTRL_PLL_POST_SHTDN 2U
#define CIO2_PBM_ARB_CTRL_PLL_POST_SHTDN_SHIFT 8U
#define CIO2_PBM_ARB_CTRL_PLL_AHD_WK_UP 480U
#define CIO2_PBM_ARB_CTRL_PLL_AHD_WK_UP_SHIFT 16U
#define CIO2_REG_PBM_WMCTRL1 0x1464
#define CIO2_PBM_WMCTRL1_MIN_2CK_SHIFT 0U
#define CIO2_PBM_WMCTRL1_MID1_2CK_SHIFT 8U
#define CIO2_PBM_WMCTRL1_MID2_2CK_SHIFT 16U
#define CIO2_PBM_WMCTRL1_TS_COUNT_DISABLE BIT(31)
#define CIO2_PBM_WMCTRL1_MIN_2CK (4 << CIO2_PBM_WMCTRL1_MIN_2CK_SHIFT)
#define CIO2_PBM_WMCTRL1_MID1_2CK (16 << CIO2_PBM_WMCTRL1_MID1_2CK_SHIFT)
#define CIO2_PBM_WMCTRL1_MID2_2CK (21 << CIO2_PBM_WMCTRL1_MID2_2CK_SHIFT)
#define CIO2_REG_PBM_WMCTRL2 0x1468
#define CIO2_PBM_WMCTRL2_HWM_2CK 40U
#define CIO2_PBM_WMCTRL2_HWM_2CK_SHIFT 0U
#define CIO2_PBM_WMCTRL2_LWM_2CK 22U
#define CIO2_PBM_WMCTRL2_LWM_2CK_SHIFT 8U
#define CIO2_PBM_WMCTRL2_OBFFWM_2CK 2U
#define CIO2_PBM_WMCTRL2_OBFFWM_2CK_SHIFT 16U
#define CIO2_PBM_WMCTRL2_TRANSDYN 1U
#define CIO2_PBM_WMCTRL2_TRANSDYN_SHIFT 24U
#define CIO2_PBM_WMCTRL2_DYNWMEN BIT(28)
#define CIO2_PBM_WMCTRL2_OBFF_MEM_EN BIT(29)
#define CIO2_PBM_WMCTRL2_OBFF_CPU_EN BIT(30)
#define CIO2_PBM_WMCTRL2_DRAINNOW BIT(31)
#define CIO2_REG_PBM_TS_COUNT 0x146c
#define CIO2_REG_PBM_FOPN_ABORT 0x1474
/* below n = 0..3 */
#define CIO2_PBM_FOPN_ABORT(n) (0x1 << 8U * (n))
#define CIO2_PBM_FOPN_FORCE_ABORT(n) (0x2 << 8U * (n))
#define CIO2_PBM_FOPN_FRAMEOPEN(n) (0x8 << 8U * (n))
#define CIO2_REG_LTRCTRL 0x1480
#define CIO2_LTRCTRL_LTRDYNEN BIT(16)
#define CIO2_LTRCTRL_LTRSTABLETIME_SHIFT 8U
#define CIO2_LTRCTRL_LTRSTABLETIME_MASK 0xff
#define CIO2_LTRCTRL_LTRSEL1S3 BIT(7)
#define CIO2_LTRCTRL_LTRSEL1S2 BIT(6)
#define CIO2_LTRCTRL_LTRSEL1S1 BIT(5)
#define CIO2_LTRCTRL_LTRSEL1S0 BIT(4)
#define CIO2_LTRCTRL_LTRSEL2S3 BIT(3)
#define CIO2_LTRCTRL_LTRSEL2S2 BIT(2)
#define CIO2_LTRCTRL_LTRSEL2S1 BIT(1)
#define CIO2_LTRCTRL_LTRSEL2S0 BIT(0)
#define CIO2_REG_LTRVAL23 0x1484
#define CIO2_REG_LTRVAL01 0x1488
#define CIO2_LTRVAL02_VAL_SHIFT 0U
#define CIO2_LTRVAL02_SCALE_SHIFT 10U
#define CIO2_LTRVAL13_VAL_SHIFT 16U
#define CIO2_LTRVAL13_SCALE_SHIFT 26U
#define CIO2_LTRVAL0_VAL 175U
/* Value times 1024 ns */
#define CIO2_LTRVAL0_SCALE 2U
#define CIO2_LTRVAL1_VAL 90U
#define CIO2_LTRVAL1_SCALE 2U
#define CIO2_LTRVAL2_VAL 90U
#define CIO2_LTRVAL2_SCALE 2U
#define CIO2_LTRVAL3_VAL 90U
#define CIO2_LTRVAL3_SCALE 2U
#define CIO2_REG_CDMABA(n) (0x1500 + 0x10 * (n)) /* n = 0..19 */
#define CIO2_REG_CDMARI(n) (0x1504 + 0x10 * (n))
#define CIO2_CDMARI_FBPT_RP_SHIFT 0U
#define CIO2_CDMARI_FBPT_RP_MASK 0xff
#define CIO2_REG_CDMAC0(n) (0x1508 + 0x10 * (n))
#define CIO2_CDMAC0_FBPT_LEN_SHIFT 0U
#define CIO2_CDMAC0_FBPT_WIDTH_SHIFT 8U
#define CIO2_CDMAC0_FBPT_NS BIT(25)
#define CIO2_CDMAC0_DMA_INTR_ON_FS BIT(26)
#define CIO2_CDMAC0_DMA_INTR_ON_FE BIT(27)
#define CIO2_CDMAC0_FBPT_UPDATE_FIFO_FULL BIT(28)
#define CIO2_CDMAC0_FBPT_FIFO_FULL_FIX_DIS BIT(29)
#define CIO2_CDMAC0_DMA_EN BIT(30)
#define CIO2_CDMAC0_DMA_HALTED BIT(31)
#define CIO2_REG_CDMAC1(n) (0x150c + 0x10 * (n))
#define CIO2_CDMAC1_LINENUMINT_SHIFT 0U
#define CIO2_CDMAC1_LINENUMUPDATE_SHIFT 16U
/* n = 0..3 */
#define CIO2_REG_PXM_PXF_FMT_CFG0(n) (0x1700 + 0x30 * (n))
#define CIO2_PXM_PXF_FMT_CFG_SID0_SHIFT 0U
#define CIO2_PXM_PXF_FMT_CFG_SID1_SHIFT 16U
#define CIO2_PXM_PXF_FMT_CFG_PCK_64B (0 << 0)
#define CIO2_PXM_PXF_FMT_CFG_PCK_32B (1 << 0)
#define CIO2_PXM_PXF_FMT_CFG_BPP_08 (0 << 2)
#define CIO2_PXM_PXF_FMT_CFG_BPP_10 (1 << 2)
#define CIO2_PXM_PXF_FMT_CFG_BPP_12 (2 << 2)
#define CIO2_PXM_PXF_FMT_CFG_BPP_14 (3 << 2)
#define CIO2_PXM_PXF_FMT_CFG_SPEC_4PPC (0 << 4)
#define CIO2_PXM_PXF_FMT_CFG_SPEC_3PPC_RGBA (1 << 4)
#define CIO2_PXM_PXF_FMT_CFG_SPEC_3PPC_ARGB (2 << 4)
#define CIO2_PXM_PXF_FMT_CFG_SPEC_PLANAR2 (3 << 4)
#define CIO2_PXM_PXF_FMT_CFG_SPEC_PLANAR3 (4 << 4)
#define CIO2_PXM_PXF_FMT_CFG_SPEC_NV16 (5 << 4)
#define CIO2_PXM_PXF_FMT_CFG_PSWAP4_1ST_AB (1 << 7)
#define CIO2_PXM_PXF_FMT_CFG_PSWAP4_1ST_CD (1 << 8)
#define CIO2_PXM_PXF_FMT_CFG_PSWAP4_2ND_AC (1 << 9)
#define CIO2_PXM_PXF_FMT_CFG_PSWAP4_2ND_BD (1 << 10)
#define CIO2_REG_INT_STS_EXT_IE 0x17e4
#define CIO2_REG_INT_EN_EXT_IE 0x17e8
#define CIO2_INT_EXT_IE_ECC_RE(n) (0x01 << (8U * (n)))
#define CIO2_INT_EXT_IE_DPHY_NR(n) (0x02 << (8U * (n)))
#define CIO2_INT_EXT_IE_ECC_NR(n) (0x04 << (8U * (n)))
#define CIO2_INT_EXT_IE_CRCERR(n) (0x08 << (8U * (n)))
#define CIO2_INT_EXT_IE_INTERFRAMEDATA(n) (0x10 << (8U * (n)))
#define CIO2_INT_EXT_IE_PKT2SHORT(n) (0x20 << (8U * (n)))
#define CIO2_INT_EXT_IE_PKT2LONG(n) (0x40 << (8U * (n)))
#define CIO2_INT_EXT_IE_IRQ(n) (0x80 << (8U * (n)))
#define CIO2_REG_PXM_FRF_CFG(n) (0x1720 + 0x30 * (n))
#define CIO2_PXM_FRF_CFG_FNSEL BIT(0)
#define CIO2_PXM_FRF_CFG_FN_RST BIT(1)
#define CIO2_PXM_FRF_CFG_ABORT BIT(2)
#define CIO2_PXM_FRF_CFG_CRC_TH_SHIFT 3U
#define CIO2_PXM_FRF_CFG_MSK_ECC_DPHY_NR BIT(8)
#define CIO2_PXM_FRF_CFG_MSK_ECC_RE BIT(9)
#define CIO2_PXM_FRF_CFG_MSK_ECC_DPHY_NE BIT(10)
#define CIO2_PXM_FRF_CFG_EVEN_ODD_MODE_SHIFT 11U
#define CIO2_PXM_FRF_CFG_MASK_CRC_THRES BIT(13)
#define CIO2_PXM_FRF_CFG_MASK_CSI_ACCEPT BIT(14)
#define CIO2_PXM_FRF_CFG_CIOHC_FS_MODE BIT(15)
#define CIO2_PXM_FRF_CFG_CIOHC_FRST_FRM_SHIFT 16U
#define CIO2_REG_PXM_SID2BID0(n) (0x1724 + 0x30 * (n))
#define CIO2_FB_HPLL_FREQ 0x2
#define CIO2_ISCLK_RATIO 0xc
#define CIO2_IRQCTRL_MASK 0x3ffff
#define CIO2_INT_EN_EXT_OE_MASK 0x8f0fffff
#define CIO2_CGC_CLKGATE_HOLDOFF 3U
#define CIO2_CGC_CSI_CLKGATE_HOLDOFF 5U
#define CIO2_PXM_FRF_CFG_CRC_TH 16
#define CIO2_INT_EN_EXT_IE_MASK 0xffffffff
#define CIO2_DMA_CHAN 0U
#define CIO2_CSIRX_DLY_CNT_CLANE_IDX -1
#define CIO2_CSIRX_DLY_CNT_TERMEN_CLANE_A 0
#define CIO2_CSIRX_DLY_CNT_TERMEN_CLANE_B 0
#define CIO2_CSIRX_DLY_CNT_SETTLE_CLANE_A 95
#define CIO2_CSIRX_DLY_CNT_SETTLE_CLANE_B -8
#define CIO2_CSIRX_DLY_CNT_TERMEN_DLANE_A 0
#define CIO2_CSIRX_DLY_CNT_TERMEN_DLANE_B 0
#define CIO2_CSIRX_DLY_CNT_SETTLE_DLANE_A 85
#define CIO2_CSIRX_DLY_CNT_SETTLE_DLANE_B -2
#define CIO2_CSIRX_DLY_CNT_TERMEN_DEFAULT 0x4
#define CIO2_CSIRX_DLY_CNT_SETTLE_DEFAULT 0x570
struct cio2_csi2_timing {
s32 clk_termen;
s32 clk_settle;
s32 dat_termen;
s32 dat_settle;
};
struct cio2_buffer {
struct vb2_v4l2_buffer vbb;
u32 *lop[CIO2_MAX_LOPS];
dma_addr_t lop_bus_addr[CIO2_MAX_LOPS];
unsigned int offset;
};
#define to_cio2_buffer(vb) container_of(vb, struct cio2_buffer, vbb.vb2_buf)
struct csi2_bus_info {
u32 port;
u32 lanes;
};
struct cio2_queue {
/* mutex to be used by vb2_queue */
struct mutex lock;
struct media_pipeline pipe;
struct csi2_bus_info csi2;
struct v4l2_subdev *sensor;
void __iomem *csi_rx_base;
/* Subdev, /dev/v4l-subdevX */
struct v4l2_subdev subdev;
struct mutex subdev_lock; /* Serialise acces to subdev_fmt field */
struct media_pad subdev_pads[CIO2_PADS];
struct v4l2_mbus_framefmt subdev_fmt;
atomic_t frame_sequence;
/* Video device, /dev/videoX */
struct video_device vdev;
struct media_pad vdev_pad;
struct v4l2_pix_format_mplane format;
struct vb2_queue vbq;
/* Buffer queue handling */
struct cio2_fbpt_entry *fbpt; /* Frame buffer pointer table */
dma_addr_t fbpt_bus_addr;
struct cio2_buffer *bufs[CIO2_MAX_BUFFERS];
unsigned int bufs_first; /* Index of the first used entry */
unsigned int bufs_next; /* Index of the first unused entry */
atomic_t bufs_queued;
};
struct cio2_device {
struct pci_dev *pci_dev;
void __iomem *base;
struct v4l2_device v4l2_dev;
struct cio2_queue queue[CIO2_QUEUES];
struct cio2_queue *cur_queue;
/* mutex to be used by video_device */
struct mutex lock;
bool streaming;
struct v4l2_async_notifier notifier;
struct media_device media_dev;
/*
* Safety net to catch DMA fetch ahead
* when reaching the end of LOP
*/
void *dummy_page;
/* DMA handle of dummy_page */
dma_addr_t dummy_page_bus_addr;
/* single List of Pointers (LOP) page */
u32 *dummy_lop;
/* DMA handle of dummy_lop */
dma_addr_t dummy_lop_bus_addr;
};
#define to_cio2_device(n) container_of(n, struct cio2_device, notifier)
/**************** Virtual channel ****************/
/*
* This should come from sensor driver. No
* driver interface nor requirement yet.
*/
#define SENSOR_VIR_CH_DFLT 0
/**************** FBPT operations ****************/
#define CIO2_FBPT_SIZE (CIO2_MAX_BUFFERS * CIO2_MAX_LOPS * \
sizeof(struct cio2_fbpt_entry))
#define CIO2_FBPT_SUBENTRY_UNIT 4
/* cio2 fbpt first_entry ctrl status */
#define CIO2_FBPT_CTRL_VALID BIT(0)
#define CIO2_FBPT_CTRL_IOC BIT(1)
#define CIO2_FBPT_CTRL_IOS BIT(2)
#define CIO2_FBPT_CTRL_SUCCXFAIL BIT(3)
#define CIO2_FBPT_CTRL_CMPLCODE_SHIFT 4
/*
* Frame Buffer Pointer Table(FBPT) entry
* each entry describe an output buffer and consists of
* several sub-entries
*/
struct __packed cio2_fbpt_entry {
union {
struct __packed {
u32 ctrl; /* status ctrl */
u16 cur_line_num; /* current line # written to DDR */
u16 frame_num; /* updated by DMA upon FE */
u32 first_page_offset; /* offset for 1st page in LOP */
} first_entry;
/* Second entry per buffer */
struct __packed {
u32 timestamp;
u32 num_of_bytes;
/* the number of bytes for write on last page */
u16 last_page_available_bytes;
/* the number of pages allocated for this buf */
u16 num_of_pages;
} second_entry;
};
u32 lop_page_addr; /* Points to list of pointers (LOP) table */
};
static inline struct cio2_queue *file_to_cio2_queue(struct file *file)
{
return container_of(video_devdata(file), struct cio2_queue, vdev);
}
static inline struct cio2_queue *vb2q_to_cio2_queue(struct vb2_queue *vq)
{
return container_of(vq, struct cio2_queue, vbq);
}
#endif
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