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linux/drivers/media/platform/ti/vpe/vip.c
Felix Gu f3e969a5b5 media: ti: vpe: Add missing v4l2_device_unregister in vip_remove() 
The v4l2_device is registered during probe but was not being unregistered
during remove. Add the missing v4l2_device_unregister() call to properly
clean up resources.

Fixes: fc2873aa4a ("media: ti: vpe: Add the VIP driver")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-03-16 11:51:55 +01:00

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// SPDX-License-Identifier: GPL-2.0
/*
* TI VIP capture driver
*
* Copyright (C) 2025 Texas Instruments Incorporated - http://www.ti.com/
* David Griego, <dagriego@biglakesoftware.com>
* Dale Farnsworth, <dale@farnsworth.org>
* Yemike Abhilash Chandra, <y-abhilashchandra@ti.com>
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/pm_runtime.h>
#include <linux/sched.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
#include <linux/pinctrl/consumer.h>
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include "vip.h"
#define VIP_MODULE_NAME "vip"
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "debug level (0-8)");
/*
* Minimum and maximum frame sizes
*/
#define MIN_W 128
#define MIN_H 128
#define MAX_W 2048
#define MAX_H 1536
/*
* Required alignments
*/
#define S_ALIGN 0 /* multiple of 1 */
#define H_ALIGN 1 /* multiple of 2 */
#define W_ALIGN 1 /* multiple of 2 */
/*
* Need a descriptor entry for each of up to 15 outputs,
* and up to 2 control transfers.
*/
#define VIP_DESC_LIST_SIZE (17 * sizeof(struct vpdma_dtd))
/*
* port flag bits
*/
#define FLAG_INTERLACED BIT(4)
#define FLAG_MULT_PORT BIT(6)
#define FLAG_MULT_ANC BIT(7)
#define VIP_VPDMA_FIFO_SIZE 2
#define VIP_DROPQ_SIZE 3
/*
* Define indices into the srce_info tables
*/
#define VIP_SRCE_MULT_PORT 0
#define VIP_SRCE_MULT_ANC 1
#define VIP_SRCE_LUMA 2
#define VIP_SRCE_CHROMA 3
#define VIP_SRCE_RGB 4
#define reg_read(dev, offset) ioread32((dev)->base + (offset))
#define reg_write(dev, offset, val) iowrite32((val), (dev)->base + (offset))
#define GET_OFFSET_TOP(port, obj, reg) \
((obj)->base - (port)->dev->base + (reg))
#define VIP_SET_MMR_ADB_HDR(port, hdr, regs, offset_a) \
VPDMA_SET_MMR_ADB_HDR((port)->mmr_adb, vip_mmr_adb, hdr, regs, offset_a)
/*
* These represent the module resets bit for slice 1
* Upon detecting slice2 we simply left shift by 1
*/
#define VIP_DP_RST BIT(16)
#define VIP_CSC_RST BIT(20)
#define VIP_SC_RST BIT(22)
#define VIP_PARSER_PORT(p) (VIP_PARSER_PORTA_0 + ((p) * 0x8U))
#define VIP_PARSER_CROP_H_PORT(p) \
(VIP_PARSER_PORTA_EXTRA4 + ((p) * 0x10U))
#define VIP_PARSER_CROP_V_PORT(p) \
(VIP_PARSER_PORTA_EXTRA5 + ((p) * 0x10U))
#define VIP_PARSER_STOP_IMM_PORT(p) (VIP_PARSER_PORTA_EXTRA6 + ((p) * 0x4U))
#define PARSER_IRQ_MASK (VIP_PORTA_OUTPUT_FIFO_YUV | \
VIP_PORTB_OUTPUT_FIFO_YUV)
/*
* The srce_info structure contains per-srce data.
*/
struct vip_srce_info {
u8 base_channel; /* the VPDMA channel number */
u8 vb_index; /* input frame f, f-1, f-2 index */
u8 vb_part; /* identifies section of co-planar formats */
};
static struct vip_srce_info srce_info[5] = {
[VIP_SRCE_MULT_PORT] = {
.base_channel = VIP1_CHAN_NUM_MULT_PORT_A_SRC0,
.vb_index = 0,
.vb_part = VIP_CHROMA,
},
[VIP_SRCE_MULT_ANC] = {
.base_channel = VIP1_CHAN_NUM_MULT_ANC_A_SRC0,
.vb_index = 0,
.vb_part = VIP_LUMA,
},
[VIP_SRCE_LUMA] = {
.base_channel = VIP1_CHAN_NUM_PORT_A_LUMA,
.vb_index = 1,
.vb_part = VIP_LUMA,
},
[VIP_SRCE_CHROMA] = {
.base_channel = VIP1_CHAN_NUM_PORT_A_CHROMA,
.vb_index = 1,
.vb_part = VIP_CHROMA,
},
[VIP_SRCE_RGB] = {
.base_channel = VIP1_CHAN_NUM_PORT_A_RGB,
.vb_part = VIP_LUMA,
},
};
static struct vip_fmt vip_formats[VIP_MAX_ACTIVE_FMT] = {
{
.fourcc = V4L2_PIX_FMT_NV12,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 1,
.vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_Y420],
&vpdma_yuv_fmts[VPDMA_DATA_FMT_C420],
},
},
{
.fourcc = V4L2_PIX_FMT_UYVY,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_CBY422],
},
},
{
.fourcc = V4L2_PIX_FMT_YUYV,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_YCB422],
},
},
{
.fourcc = V4L2_PIX_FMT_VYUY,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_CRY422],
},
},
{
.fourcc = V4L2_PIX_FMT_YVYU,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_yuv_fmts[VPDMA_DATA_FMT_YCR422],
},
},
{
.fourcc = V4L2_PIX_FMT_RGB24,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_rgb_fmts[VPDMA_DATA_FMT_RGB24],
},
},
{
.fourcc = V4L2_PIX_FMT_RGB32,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_rgb_fmts[VPDMA_DATA_FMT_ARGB32],
},
},
{
.fourcc = V4L2_PIX_FMT_BGR24,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_rgb_fmts[VPDMA_DATA_FMT_BGR24],
},
},
{
.fourcc = V4L2_PIX_FMT_BGR32,
.code = MEDIA_BUS_FMT_UYVY8_2X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_rgb_fmts[VPDMA_DATA_FMT_ABGR32],
},
},
{
.fourcc = V4L2_PIX_FMT_RGB24,
.code = MEDIA_BUS_FMT_RGB888_1X24,
.coplanar = 0,
.vpdma_fmt = { &vpdma_rgb_fmts[VPDMA_DATA_FMT_RGB24],
},
},
{
.fourcc = V4L2_PIX_FMT_RGB32,
.code = MEDIA_BUS_FMT_ARGB8888_1X32,
.coplanar = 0,
.vpdma_fmt = { &vpdma_rgb_fmts[VPDMA_DATA_FMT_ARGB32],
},
},
{
.fourcc = V4L2_PIX_FMT_SBGGR8,
.code = MEDIA_BUS_FMT_SBGGR8_1X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_raw_fmts[VPDMA_DATA_FMT_RAW8],
},
},
{
.fourcc = V4L2_PIX_FMT_SGBRG8,
.code = MEDIA_BUS_FMT_SGBRG8_1X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_raw_fmts[VPDMA_DATA_FMT_RAW8],
},
},
{
.fourcc = V4L2_PIX_FMT_SGRBG8,
.code = MEDIA_BUS_FMT_SGRBG8_1X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_raw_fmts[VPDMA_DATA_FMT_RAW8],
},
},
{
.fourcc = V4L2_PIX_FMT_SRGGB8,
.code = MEDIA_BUS_FMT_SRGGB8_1X8,
.coplanar = 0,
.vpdma_fmt = { &vpdma_raw_fmts[VPDMA_DATA_FMT_RAW8],
},
},
{
/* V4L2 currently only defines one 16 bit variant */
.fourcc = V4L2_PIX_FMT_SBGGR16,
.code = MEDIA_BUS_FMT_SBGGR16_1X16,
.coplanar = 0,
.vpdma_fmt = { &vpdma_raw_fmts[VPDMA_DATA_FMT_RAW16],
},
},
};
/*
* DMA address/data block for the shadow registers
*/
struct vip_mmr_adb {
struct vpdma_adb_hdr sc_hdr0;
u32 sc_regs0[7];
u32 sc_pad0[1];
struct vpdma_adb_hdr sc_hdr8;
u32 sc_regs8[6];
u32 sc_pad8[2];
struct vpdma_adb_hdr sc_hdr17;
u32 sc_regs17[9];
u32 sc_pad17[3];
struct vpdma_adb_hdr csc_hdr;
u32 csc_regs[6];
u32 csc_pad[2];
};
/*
* Function prototype declarations
*/
static int alloc_port(struct vip_dev *, int);
static void free_port(struct vip_port *);
static int vip_setup_parser(struct vip_port *port);
static int vip_setup_scaler(struct vip_stream *stream);
static void vip_enable_parser(struct vip_port *port, bool on);
static void vip_reset_parser(struct vip_port *port, bool on);
static void vip_parser_stop_imm(struct vip_port *port, bool on);
static void stop_dma(struct vip_stream *stream, bool clear_list);
static int vip_load_vpdma_list_fifo(struct vip_stream *stream);
static inline bool is_scaler_available(struct vip_port *port);
static inline bool allocate_scaler(struct vip_port *port);
static inline void free_scaler(struct vip_port *port);
static bool is_csc_available(struct vip_port *port);
static bool allocate_csc(struct vip_port *port,
enum vip_csc_state csc_direction);
static void free_csc(struct vip_port *port);
/* initialize v4l2_format_info member in vip_formats array */
static void vip_init_format_info(struct device *dev)
{
struct vip_fmt *fmt;
int i;
for (i = 0; i < ARRAY_SIZE(vip_formats); i++) {
fmt = &vip_formats[i];
fmt->finfo = v4l2_format_info(fmt->fourcc);
}
}
/* Print Four-character-code (FOURCC) */
static char *fourcc_to_str(u32 fmt)
{
static char code[5];
code[0] = (unsigned char)(fmt & 0xff);
code[1] = (unsigned char)((fmt >> 8) & 0xff);
code[2] = (unsigned char)((fmt >> 16) & 0xff);
code[3] = (unsigned char)((fmt >> 24) & 0xff);
code[4] = '\0';
return code;
}
/*
* Find our format description corresponding to the passed v4l2_format
*/
static struct vip_fmt *find_port_format_by_pix(struct vip_port *port,
u32 pixelformat)
{
struct vip_fmt *fmt;
unsigned int index;
for (index = 0; index < port->num_active_fmt; index++) {
fmt = port->active_fmt[index];
if (fmt->fourcc == pixelformat)
return fmt;
}
return NULL;
}
static struct vip_fmt *find_port_format_by_code(struct vip_port *port,
u32 code)
{
struct vip_fmt *fmt;
unsigned int index;
for (index = 0; index < port->num_active_fmt; index++) {
fmt = port->active_fmt[index];
if (fmt->code == code)
return fmt;
}
return NULL;
}
inline struct vip_port *notifier_to_vip_port(struct v4l2_async_notifier *n)
{
return container_of(n, struct vip_port, notifier);
}
static bool vip_is_mbuscode_yuv(u32 code)
{
return ((code & 0xff00) == 0x2000);
}
static bool vip_is_mbuscode_rgb(u32 code)
{
return ((code & 0xff00) == 0x1000);
}
static bool vip_is_mbuscode_raw(u32 code)
{
return ((code & 0xff00) == 0x3000);
}
/*
* This is not an accurate conversion but it is only used to
* assess if color conversion is needed.
*/
static u32 vip_mbus_code_to_fourcc(u32 code)
{
if (vip_is_mbuscode_rgb(code))
return V4L2_PIX_FMT_RGB24;
if (vip_is_mbuscode_yuv(code))
return V4L2_PIX_FMT_UYVY;
return V4L2_PIX_FMT_SBGGR8;
}
static enum vip_csc_state
vip_csc_direction(u32 src_code, const struct v4l2_format_info *dfinfo)
{
if (vip_is_mbuscode_yuv(src_code) && v4l2_is_format_rgb(dfinfo))
return VIP_CSC_Y2R;
else if (vip_is_mbuscode_rgb(src_code) && v4l2_is_format_yuv(dfinfo))
return VIP_CSC_R2Y;
else
return VIP_CSC_NA;
}
/*
* Insert a masked field into a 32-bit field
*/
static void insert_field(u32 *valp, u32 field, u32 mask, int shift)
{
u32 val = *valp;
val &= ~(mask << shift);
val |= (field & mask) << shift;
*valp = val;
}
/*
* Set the headers for all of the address/data block structures.
*/
static void init_adb_hdrs(struct vip_port *port)
{
VIP_SET_MMR_ADB_HDR(port, sc_hdr0, sc_regs0,
GET_OFFSET_TOP(port, port->dev->sc, CFG_SC0));
VIP_SET_MMR_ADB_HDR(port, sc_hdr8, sc_regs8,
GET_OFFSET_TOP(port, port->dev->sc, CFG_SC8));
VIP_SET_MMR_ADB_HDR(port, sc_hdr17, sc_regs17,
GET_OFFSET_TOP(port, port->dev->sc, CFG_SC17));
VIP_SET_MMR_ADB_HDR(port, csc_hdr, csc_regs,
GET_OFFSET_TOP(port, port->dev->csc, CSC_CSC00));
};
static void vip_module_toggle(struct vip_dev *dev, uint32_t module, bool on)
{
u32 val = 0;
val = reg_read(dev, VIP_CLK_RESET);
if (dev->slice_id == VIP_SLICE2)
module <<= 1;
if (on)
val |= module;
else
val &= ~module;
reg_write(dev, VIP_CLK_RESET, val);
}
/*
* Enable or disable the VIP clocks
*/
static void vip_set_clock_enable(struct vip_dev *dev, bool on)
{
u32 val = 0;
val = reg_read(dev, VIP_CLK_ENABLE);
if (on) {
val |= VIP_VPDMA_CLK_ENABLE;
if (dev->slice_id == VIP_SLICE1)
val |= VIP_VIP1_DATA_PATH_CLK_ENABLE;
else
val |= VIP_VIP2_DATA_PATH_CLK_ENABLE;
} else {
if (dev->slice_id == VIP_SLICE1)
val &= ~VIP_VIP1_DATA_PATH_CLK_ENABLE;
else
val &= ~VIP_VIP2_DATA_PATH_CLK_ENABLE;
/* Both VIP are disabled then shutdown VPDMA also */
if (!(val & (VIP_VIP1_DATA_PATH_CLK_ENABLE |
VIP_VIP2_DATA_PATH_CLK_ENABLE)))
val = 0;
}
reg_write(dev, VIP_CLK_ENABLE, val);
}
/* This helper function is used to enable the clock early on to
* enable vpdma firmware loading before the slice device are created
*/
static void vip_shared_set_clock_enable(struct vip_shared *shared, bool on)
{
u32 val = 0;
val = VIP_VIP1_DATA_PATH_CLK_ENABLE | VIP_VPDMA_CLK_ENABLE;
reg_write(shared, VIP_CLK_ENABLE, val);
}
static void vip_top_reset(struct vip_dev *dev)
{
u32 val = 0;
val = reg_read(dev, VIP_CLK_RESET);
if (dev->slice_id == VIP_SLICE1)
insert_field(&val, 1, VIP_DATA_PATH_CLK_RESET_MASK,
VIP_VIP1_DATA_PATH_RESET_SHIFT);
else
insert_field(&val, 1, VIP_DATA_PATH_CLK_RESET_MASK,
VIP_VIP2_DATA_PATH_RESET_SHIFT);
reg_write(dev, VIP_CLK_RESET, val);
usleep_range(200, 250);
val = reg_read(dev, VIP_CLK_RESET);
if (dev->slice_id == VIP_SLICE1)
insert_field(&val, 0, VIP_DATA_PATH_CLK_RESET_MASK,
VIP_VIP1_DATA_PATH_RESET_SHIFT);
else
insert_field(&val, 0, VIP_DATA_PATH_CLK_RESET_MASK,
VIP_VIP2_DATA_PATH_RESET_SHIFT);
reg_write(dev, VIP_CLK_RESET, val);
}
static void vip_top_vpdma_reset(struct vip_shared *shared)
{
u32 val;
val = reg_read(shared, VIP_CLK_RESET);
insert_field(&val, 1, VIP_VPDMA_CLK_RESET_MASK,
VIP_VPDMA_CLK_RESET_SHIFT);
reg_write(shared, VIP_CLK_RESET, val);
usleep_range(200, 250);
val = reg_read(shared, VIP_CLK_RESET);
insert_field(&val, 0, VIP_VPDMA_CLK_RESET_MASK,
VIP_VPDMA_CLK_RESET_SHIFT);
reg_write(shared, VIP_CLK_RESET, val);
}
static void vip_set_pclk_invert(struct vip_port *port)
{
struct vip_ctrl_module *ctrl = port->dev->syscon;
struct vip_dev *dev = port->dev;
u32 index;
/*
* When the VIP parser is configured to so that the pixel clock
* is to be sampled at falling edge, the pixel clock needs to be
* inverted before it is given to the VIP module. This is done
* by setting a bit in the CTRL_CORE_SMA_SW1 register.
*/
index = 2 * port->dev->slice_id + port->port_id;
v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: slice%d:port%d -> index: %d\n", __func__,
port->dev->slice_id, port->port_id, index);
if (ctrl->syscon_pol)
regmap_update_bits(ctrl->syscon_pol,
ctrl->syscon_offset,
ctrl->syscon_bit_field[index],
ctrl->syscon_bit_field[index]);
}
static void vip_set_data_interface(struct vip_port *port,
enum data_interface_modes mode)
{
u32 val = 0;
insert_field(&val, mode, VIP_DATA_INTERFACE_MODE_MASK,
VIP_DATA_INTERFACE_MODE_SHFT);
reg_write(port->dev->parser, VIP_PARSER_MAIN_CFG, val);
}
static void vip_set_slice_path(struct vip_dev *dev,
enum data_path_select data_path, u32 path_val)
{
u32 val = 0;
int data_path_reg;
data_path_reg = VIP_VIP1_DATA_PATH_SELECT + 4 * dev->slice_id;
switch (data_path) {
case ALL_FIELDS_DATA_SELECT:
val |= path_val;
break;
case VIP_CSC_SRC_DATA_SELECT:
insert_field(&val, path_val, VIP_CSC_SRC_SELECT_MASK,
VIP_CSC_SRC_SELECT_SHFT);
break;
case VIP_SC_SRC_DATA_SELECT:
insert_field(&val, path_val, VIP_SC_SRC_SELECT_MASK,
VIP_SC_SRC_SELECT_SHFT);
break;
case VIP_RGB_SRC_DATA_SELECT:
val |= (path_val) ? VIP_RGB_SRC_SELECT : 0;
break;
case VIP_RGB_OUT_LO_DATA_SELECT:
val |= (path_val) ? VIP_RGB_OUT_LO_SRC_SELECT : 0;
break;
case VIP_RGB_OUT_HI_DATA_SELECT:
val |= (path_val) ? VIP_RGB_OUT_HI_SRC_SELECT : 0;
break;
case VIP_CHR_DS_1_SRC_DATA_SELECT:
insert_field(&val, path_val, VIP_DS1_SRC_SELECT_MASK,
VIP_DS1_SRC_SELECT_SHFT);
break;
case VIP_CHR_DS_2_SRC_DATA_SELECT:
insert_field(&val, path_val, VIP_DS2_SRC_SELECT_MASK,
VIP_DS2_SRC_SELECT_SHFT);
break;
case VIP_MULTI_CHANNEL_DATA_SELECT:
val |= (path_val) ? VIP_MULTI_CHANNEL_SELECT : 0;
break;
case VIP_CHR_DS_1_DATA_BYPASS:
val |= (path_val) ? VIP_DS1_BYPASS : 0;
break;
case VIP_CHR_DS_2_DATA_BYPASS:
val |= (path_val) ? VIP_DS2_BYPASS : 0;
break;
default:
v4l2_err(&dev->v4l2_dev, "%s: data_path 0x%x is not valid\n",
__func__, data_path);
return;
}
insert_field(&val, data_path, VIP_DATAPATH_SELECT_MASK,
VIP_DATAPATH_SELECT_SHFT);
reg_write(dev, data_path_reg, val);
v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: DATA_PATH_SELECT(%08X): %08X\n", __func__,
data_path_reg, reg_read(dev, data_path_reg));
}
/*
* Return the vip_stream structure for a given struct file
*/
static inline struct vip_stream *file2stream(struct file *file)
{
return video_drvdata(file);
}
/*
* Append a destination descriptor to the current descriptor list,
* setting up dma to the given srce.
*/
static int add_out_dtd(struct vip_stream *stream, int srce_type)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct vip_srce_info *sinfo = &srce_info[srce_type];
struct v4l2_rect *c_rect = &port->c_rect;
struct vip_fmt *fmt = port->fmt;
int channel, plane = 0;
int max_width, max_height;
dma_addr_t dma_addr = 0;
u32 flags;
u32 width = stream->width;
channel = sinfo->base_channel;
switch (srce_type) {
case VIP_SRCE_MULT_PORT:
case VIP_SRCE_MULT_ANC:
if (port->port_id == VIP_PORTB)
channel += VIP_CHAN_MULT_PORTB_OFFSET;
channel += stream->stream_id;
flags = 0;
break;
case VIP_SRCE_CHROMA:
plane = 1;
fallthrough;
case VIP_SRCE_LUMA:
if (port->port_id == VIP_PORTB) {
if (port->scaler && !port->fmt->coplanar)
/*
* In this case Port A Chroma channel
* is used to carry Port B scaled YUV422
*/
channel += 1;
else
channel += VIP_CHAN_YUV_PORTB_OFFSET;
}
flags = port->flags;
break;
case VIP_SRCE_RGB:
if (port->port_id == VIP_PORTB ||
(port->port_id == VIP_PORTA &&
port->csc == VIP_CSC_NA &&
v4l2_is_format_rgb(port->fmt->finfo)))
/*
* RGB sensor only connect to Y_LO
* channel i.e. port B channel.
*/
channel += VIP_CHAN_RGB_PORTB_OFFSET;
flags = port->flags;
break;
default:
v4l2_err(&dev->v4l2_dev, "%s: srce_type 0x%x is not valid\n",
__func__, srce_type);
return -1;
}
if (dev->slice_id == VIP_SLICE2)
channel += VIP_CHAN_VIP2_OFFSET;
if (port->fmt->vpdma_fmt[0] == &vpdma_raw_fmts[VPDMA_DATA_FMT_RAW8]) {
/*
* Special case since we are faking a YUV422 16bit format
* to have the vpdma perform the needed byte swap
* we need to adjust the pixel width accordingly
* otherwise the parser will attempt to collect more pixels
* then available and the vpdma transfer will exceed the
* allocated frame buffer.
*/
width >>= 1;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: 8 bit raw detected, adjusting width to %d\n",
__func__, width);
}
/*
* Use VPDMA_MAX_SIZE1 or VPDMA_MAX_SIZE2 register for slice0/1
*/
if (dev->slice_id == VIP_SLICE1) {
vpdma_set_max_size(dev->shared->vpdma, VPDMA_MAX_SIZE1,
width, stream->height);
max_width = MAX_OUT_WIDTH_REG1;
max_height = MAX_OUT_HEIGHT_REG1;
} else {
vpdma_set_max_size(dev->shared->vpdma, VPDMA_MAX_SIZE2,
width, stream->height);
max_width = MAX_OUT_WIDTH_REG2;
max_height = MAX_OUT_HEIGHT_REG2;
}
/*
* Mark this channel to be cleared while cleaning up resources
* This will make sure that an abort descriptor for this channel
* would be submitted to VPDMA causing any ongoing transaction to be
* aborted and cleanup the VPDMA FSM for this channel
*/
stream->vpdma_channels[channel] = 1;
vpdma_rawchan_add_out_dtd(&stream->desc_list, c_rect->width,
stream->bytesperline, c_rect,
fmt->vpdma_fmt[plane], dma_addr,
max_width, max_height, channel, flags);
return 0;
}
/*
* add_stream_dtds - prepares and starts DMA for pending transfers
*/
static void add_stream_dtds(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
int srce_type;
if (port->flags & FLAG_MULT_PORT)
srce_type = VIP_SRCE_MULT_PORT;
else if (port->flags & FLAG_MULT_ANC)
srce_type = VIP_SRCE_MULT_ANC;
else if (v4l2_is_format_rgb(port->fmt->finfo))
srce_type = VIP_SRCE_RGB;
else
srce_type = VIP_SRCE_LUMA;
add_out_dtd(stream, srce_type);
if (srce_type == VIP_SRCE_LUMA && port->fmt->coplanar)
add_out_dtd(stream, VIP_SRCE_CHROMA);
}
static void enable_irqs(struct vip_dev *dev, int irq_num, int list_num)
{
struct vip_parser_data *parser = dev->parser;
u32 reg_addr = VIP_INT0_ENABLE0_SET +
VIP_INTC_INTX_OFFSET * irq_num;
u32 irq_val = (1 << (list_num * 2)) |
(VIP_VIP1_PARSER_INT << (irq_num * 1));
/* Enable Parser Interrupt */
reg_write(parser, VIP_PARSER_FIQ_MASK, (u32)~PARSER_IRQ_MASK);
reg_write(dev->shared, reg_addr, irq_val);
vpdma_enable_list_complete_irq(dev->shared->vpdma,
irq_num, list_num, true);
}
static void disable_irqs(struct vip_dev *dev, int irq_num, int list_num)
{
struct vip_parser_data *parser = dev->parser;
u32 reg_addr = VIP_INT0_ENABLE0_CLR +
VIP_INTC_INTX_OFFSET * irq_num;
u32 irq_val = (1 << (list_num * 2)) |
(VIP_VIP1_PARSER_INT << (irq_num * 1));
/* Disable all Parser Interrupt */
reg_write(parser, VIP_PARSER_FIQ_MASK, 0xffffffff);
reg_write(dev->shared, reg_addr, irq_val);
vpdma_enable_list_complete_irq(dev->shared->vpdma,
irq_num, list_num, false);
}
static void clear_irqs(struct vip_dev *dev, int irq_num, int list_num)
{
struct vip_parser_data *parser = dev->parser;
u32 reg_addr = VIP_INT0_STATUS0_CLR +
VIP_INTC_INTX_OFFSET * irq_num;
u32 irq_val = (1 << (list_num * 2)) |
(VIP_VIP1_PARSER_INT << (irq_num * 1));
/* Clear all Parser Interrupt */
reg_write(parser, VIP_PARSER_FIQ_CLR, 0xffffffff);
reg_write(parser, VIP_PARSER_FIQ_CLR, 0x0);
reg_write(dev->shared, reg_addr, irq_val);
vpdma_clear_list_stat(dev->shared->vpdma, irq_num, dev->slice_id);
}
static void populate_desc_list(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
stream->desc_next = stream->desc_list.buf.addr;
add_stream_dtds(stream);
vpdma_map_desc_buf(dev->shared->vpdma, &stream->desc_list.buf);
}
/*
* start_dma - adds descriptors to the dma list and submits them.
* Should be called after a new vb is queued and on a vpdma list
* completion interrupt.
*/
static void start_dma(struct vip_stream *stream, struct vip_buffer *buf)
{
struct vip_dev *dev = stream->port->dev;
struct vpdma_data *vpdma = dev->shared->vpdma;
int list_num = stream->list_num;
dma_addr_t dma_addr;
int drop_data;
if (vpdma_list_busy(vpdma, list_num)) {
v4l2_err(&dev->v4l2_dev, "vpdma list busy, cannot post\n");
return; /* nothing to do */
}
if (buf) {
dma_addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0);
drop_data = 0;
v4l2_dbg(4, debug, &dev->v4l2_dev, "%s: vb2 buf idx:%d, dma_addr:%pad\n",
__func__, buf->vb.vb2_buf.index, &dma_addr);
} else {
dma_addr = 0;
drop_data = 1;
v4l2_dbg(4, debug, &dev->v4l2_dev, "%s: dropped\n", __func__);
}
vpdma_update_dma_addr(dev->shared->vpdma, &stream->desc_list,
dma_addr, stream->write_desc, drop_data, 0);
if (stream->port->fmt->coplanar) {
dma_addr += stream->bytesperline * stream->height;
vpdma_update_dma_addr(dev->shared->vpdma, &stream->desc_list,
dma_addr, stream->write_desc + 1,
drop_data, 1);
}
vpdma_submit_descs(dev->shared->vpdma,
&stream->desc_list, stream->list_num);
}
static void vip_schedule_next_buffer(struct vip_stream *stream)
{
struct vip_dev *dev = stream->port->dev;
struct vip_buffer *buf;
unsigned long flags;
spin_lock_irqsave(&dev->slock, flags);
if (list_empty(&stream->vidq)) {
v4l2_dbg(4, debug, &dev->v4l2_dev, "Dropping frame\n");
if (list_empty(&stream->dropq)) {
v4l2_err(&dev->v4l2_dev, "No dropq buffer left!");
spin_unlock_irqrestore(&dev->slock, flags);
return;
}
buf = list_entry(stream->dropq.next,
struct vip_buffer, list);
buf->drop = true;
list_move_tail(&buf->list, &stream->post_bufs);
buf = NULL;
} else {
buf = list_entry(stream->vidq.next,
struct vip_buffer, list);
buf->drop = false;
list_move_tail(&buf->list, &stream->post_bufs);
v4l2_dbg(4, debug, &dev->v4l2_dev, "added next buffer\n");
}
spin_unlock_irqrestore(&dev->slock, flags);
start_dma(stream, buf);
}
static void vip_process_buffer_complete(struct vip_stream *stream)
{
struct vip_dev *dev = stream->port->dev;
struct vip_buffer *buf;
struct vb2_v4l2_buffer *vb = NULL;
unsigned long flags, fld;
buf = list_first_entry_or_null(&stream->post_bufs, struct vip_buffer, list);
if (stream->port->flags & FLAG_INTERLACED) {
vpdma_unmap_desc_buf(dev->shared->vpdma,
&stream->desc_list.buf);
fld = dtd_get_field(stream->write_desc);
stream->field = fld ? V4L2_FIELD_BOTTOM : V4L2_FIELD_TOP;
vpdma_map_desc_buf(dev->shared->vpdma, &stream->desc_list.buf);
}
if (buf) {
vb = &buf->vb;
vb->sequence = stream->sequence;
vb->vb2_buf.timestamp = ktime_get_ns();
vb->field = V4L2_FIELD_NONE;
if (buf->drop) {
spin_lock_irqsave(&dev->slock, flags);
list_move_tail(&buf->list, &stream->dropq);
spin_unlock_irqrestore(&dev->slock, flags);
} else {
spin_lock_irqsave(&dev->slock, flags);
list_del(&buf->list);
spin_unlock_irqrestore(&dev->slock, flags);
vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
}
} else {
v4l2_err(&dev->v4l2_dev, "%s: buf is null!!!\n", __func__);
return;
}
stream->sequence++;
}
static int vip_reset_vpdma(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct vip_buffer *buf;
unsigned long flags;
stop_dma(stream, false);
spin_lock_irqsave(&dev->slock, flags);
/* requeue all active buffers in the opposite order */
while (!list_empty(&stream->post_bufs)) {
buf = list_last_entry(&stream->post_bufs,
struct vip_buffer, list);
list_del(&buf->list);
if (buf->drop == 1) {
list_add_tail(&buf->list, &stream->dropq);
v4l2_dbg(4, debug, &dev->v4l2_dev, "requeueing drop buffer on dropq\n");
} else {
list_add(&buf->list, &stream->vidq);
v4l2_dbg(4, debug, &dev->v4l2_dev, "requeueing vb2 buf idx:%d on vidq\n",
buf->vb.vb2_buf.index);
}
}
spin_unlock_irqrestore(&dev->slock, flags);
/* Make sure the desc_list is unmapped */
vpdma_unmap_desc_buf(dev->shared->vpdma, &stream->desc_list.buf);
return 0;
}
static void vip_overflow_recovery_work(struct work_struct *work)
{
struct vip_stream *stream = container_of(work, struct vip_stream,
recovery_work);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
v4l2_err(&dev->v4l2_dev, "%s: Port %c\n", __func__,
port->port_id == VIP_PORTA ? 'A' : 'B');
disable_irqs(dev, dev->slice_id, stream->list_num);
clear_irqs(dev, dev->slice_id, stream->list_num);
/* 1. Set VIP_XTRA6_PORT_A[31:16] YUV_SRCNUM_STOP_IMMEDIATELY */
/* 2. Set VIP_XTRA6_PORT_A[15:0] ANC_SRCNUM_STOP_IMMEDIATELY */
vip_parser_stop_imm(port, 1);
/* 3. Clear VIP_PORT_A[8] ENABLE */
/*
* 4. Set VIP_PORT_A[7] CLR_ASYNC_FIFO_RD
* Set VIP_PORT_A[6] CLR_ASYNC_FIFO_WR
*/
vip_enable_parser(port, false);
/* 5. Set VIP_PORT_A[23] SW_RESET */
vip_reset_parser(port, 1);
/*
* 6. Reset other VIP modules
* For each module used downstream of VIP_PARSER, write 1 to the
* bit location of the VIP_CLKC_RST register which is connected
* to VIP_PARSER
*/
vip_module_toggle(dev, VIP_DP_RST, true);
usleep_range(200, 250);
/*
* 7. Abort VPDMA channels
* Write to list attribute to stop list 0
* Write to list address register location of abort list
* Write to list attribute register list 0 and size of abort list
*/
vip_reset_vpdma(stream);
/* 8. Clear VIP_PORT_A[23] SW_RESET */
vip_reset_parser(port, 0);
/*
* 9. Un-reset other VIP modules
* For each module used downstream of VIP_PARSER, write 0 to
* the bit location of the VIP_CLKC_RST register which is
* connected to VIP_PARSER
*/
vip_module_toggle(dev, VIP_DP_RST, false);
/* 10. (Delay) */
/* 11. SC coeff downloaded (if VIP_SCALER is being used) */
vip_setup_scaler(stream);
/* 12. (Delay) */
/* the above are not needed here yet */
populate_desc_list(stream);
stream->num_recovery++;
if (stream->num_recovery < 5) {
/* Reload the vpdma */
vip_load_vpdma_list_fifo(stream);
enable_irqs(dev, dev->slice_id, stream->list_num);
vip_schedule_next_buffer(stream);
/* 13. Clear VIP_XTRA6_PORT_A[31:16] YUV_SRCNUM_STOP_IMM */
/* 14. Clear VIP_XTRA6_PORT_A[15:0] ANC_SRCNUM_STOP_IMM */
vip_parser_stop_imm(port, 0);
/* 15. Set VIP_PORT_A[8] ENABLE */
/*
* 16. Clear VIP_PORT_A[7] CLR_ASYNC_FIFO_RD
* Clear VIP_PORT_A[6] CLR_ASYNC_FIFO_WR
*/
vip_enable_parser(port, true);
} else {
v4l2_err(&dev->v4l2_dev, "%s: num_recovery limit exceeded leaving disabled\n",
__func__);
}
}
static void handle_parser_irqs(struct vip_dev *dev)
{
struct vip_parser_data *parser = dev->parser;
struct vip_port *porta = dev->ports[VIP_PORTA];
struct vip_port *portb = dev->ports[VIP_PORTB];
struct vip_stream *stream = NULL;
u32 vip_irq_stat = reg_read(parser, VIP_PARSER_FIQ_STATUS);
int i;
v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: FIQ_STATUS: 0x%08x\n", __func__, vip_irq_stat);
/* Clear all Parser Interrupt */
reg_write(parser, VIP_PARSER_FIQ_CLR, vip_irq_stat);
reg_write(parser, VIP_PARSER_FIQ_CLR, 0x0);
#ifdef DEBUG
if (vip_irq_stat & VIP_PORTA_VDET)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTA_VDET\n");
if (vip_irq_stat & VIP_PORTB_VDET)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTB_VDET\n");
if (vip_irq_stat & VIP_PORTA_ASYNC_FIFO_OF)
v4l2_err(&dev->v4l2_dev, "VIP_PORTA_ASYNC_FIFO_OF\n");
if (vip_irq_stat & VIP_PORTB_ASYNC_FIFO_OF)
v4l2_err(&dev->v4l2_dev, "VIP_PORTB_ASYNC_FIFO_OF\n");
if (vip_irq_stat & VIP_PORTA_OUTPUT_FIFO_YUV)
v4l2_err(&dev->v4l2_dev, "VIP_PORTA_OUTPUT_FIFO_YUV\n");
if (vip_irq_stat & VIP_PORTA_OUTPUT_FIFO_ANC)
v4l2_err(&dev->v4l2_dev, "VIP_PORTA_OUTPUT_FIFO_ANC\n");
if (vip_irq_stat & VIP_PORTB_OUTPUT_FIFO_YUV)
v4l2_err(&dev->v4l2_dev, "VIP_PORTB_OUTPUT_FIFO_YUV\n");
if (vip_irq_stat & VIP_PORTB_OUTPUT_FIFO_ANC)
v4l2_err(&dev->v4l2_dev, "VIP_PORTB_OUTPUT_FIFO_ANC\n");
if (vip_irq_stat & VIP_PORTA_CONN)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTA_CONN\n");
if (vip_irq_stat & VIP_PORTA_DISCONN)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTA_DISCONN\n");
if (vip_irq_stat & VIP_PORTB_CONN)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTB_CONN\n");
if (vip_irq_stat & VIP_PORTB_DISCONN)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTB_DISCONN\n");
if (vip_irq_stat & VIP_PORTA_SRC0_SIZE)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTA_SRC0_SIZE\n");
if (vip_irq_stat & VIP_PORTB_SRC0_SIZE)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTB_SRC0_SIZE\n");
if (vip_irq_stat & VIP_PORTA_YUV_PROTO_VIOLATION)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTA_YUV_PROTO_VIOLATION\n");
if (vip_irq_stat & VIP_PORTA_ANC_PROTO_VIOLATION)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTA_ANC_PROTO_VIOLATION\n");
if (vip_irq_stat & VIP_PORTB_YUV_PROTO_VIOLATION)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTB_YUV_PROTO_VIOLATION\n");
if (vip_irq_stat & VIP_PORTB_ANC_PROTO_VIOLATION)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTB_ANC_PROTO_VIOLATION\n");
if (vip_irq_stat & VIP_PORTA_CFG_DISABLE_COMPLETE)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTA_CFG_DISABLE_COMPLETE\n");
if (vip_irq_stat & VIP_PORTB_CFG_DISABLE_COMPLETE)
v4l2_dbg(3, debug, &dev->v4l2_dev, "VIP_PORTB_CFG_DISABLE_COMPLETE\n");
#endif
if (vip_irq_stat & (VIP_PORTA_ASYNC_FIFO_OF |
VIP_PORTA_OUTPUT_FIFO_YUV |
VIP_PORTA_OUTPUT_FIFO_ANC)) {
for (i = 0; i < VIP_CAP_STREAMS_PER_PORT; i++) {
if (porta->cap_streams[i] &&
porta->cap_streams[i]->port->port_id ==
porta->port_id) {
stream = porta->cap_streams[i];
break;
}
}
if (stream) {
disable_irqs(dev, dev->slice_id,
stream->list_num);
schedule_work(&stream->recovery_work);
return;
}
}
if (vip_irq_stat & (VIP_PORTB_ASYNC_FIFO_OF |
VIP_PORTB_OUTPUT_FIFO_YUV |
VIP_PORTB_OUTPUT_FIFO_ANC)) {
for (i = 0; i < VIP_CAP_STREAMS_PER_PORT; i++) {
if (portb->cap_streams[i] &&
portb->cap_streams[i]->port->port_id ==
portb->port_id) {
stream = portb->cap_streams[i];
break;
}
}
if (stream) {
disable_irqs(dev, dev->slice_id,
stream->list_num);
schedule_work(&stream->recovery_work);
return;
}
}
}
static irqreturn_t vip_irq(int irq_vip, void *data)
{
struct vip_dev *dev = (struct vip_dev *)data;
struct vpdma_data *vpdma;
struct vip_stream *stream;
int list_num;
int irq_num = dev->slice_id;
u32 irqst, irqst_saved, reg_addr;
if (!dev->shared)
return IRQ_HANDLED;
vpdma = dev->shared->vpdma;
reg_addr = VIP_INT0_STATUS0 +
VIP_INTC_INTX_OFFSET * irq_num;
irqst_saved = reg_read(dev->shared, reg_addr);
irqst = irqst_saved;
v4l2_dbg(8, debug, &dev->v4l2_dev, "IRQ %d VIP_INT%d_STATUS0 0x%x\n",
irq_vip, irq_num, irqst);
if (irqst) {
if (irqst & (VIP_VIP1_PARSER_INT << (irq_num * 1))) {
irqst &= ~(VIP_VIP1_PARSER_INT << (irq_num * 1));
handle_parser_irqs(dev);
}
for (list_num = 0; irqst && (list_num < 8); list_num++) {
/* Check for LIST_COMPLETE IRQ */
if (!(irqst & (1 << list_num * 2)))
continue;
v4l2_dbg(8, debug, &dev->v4l2_dev, "IRQ %d: handling LIST%d_COMPLETE\n",
irq_num, list_num);
stream = vpdma_hwlist_get_priv(vpdma, list_num);
if (!stream || stream->list_num != list_num) {
v4l2_err(&dev->v4l2_dev, "IRQ occurred for unused list");
continue;
}
vpdma_clear_list_stat(vpdma, irq_num, list_num);
vip_process_buffer_complete(stream);
vip_schedule_next_buffer(stream);
irqst &= ~((1 << list_num * 2));
}
}
/* Acknowledge that we are done with all interrupts */
reg_write(dev->shared, VIP_INTC_E0I, 1 << irq_num);
/* Clear handled events from status register */
reg_addr = VIP_INT0_STATUS0_CLR +
VIP_INTC_INTX_OFFSET * irq_num;
reg_write(dev->shared, reg_addr, irqst_saved);
return IRQ_HANDLED;
}
/*
* video ioctls
*/
static int vip_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
strscpy(cap->driver, VIP_MODULE_NAME, sizeof(cap->driver));
strscpy(cap->card, VIP_MODULE_NAME, sizeof(cap->card));
return 0;
}
static int vip_enuminput(struct file *file, void *priv,
struct v4l2_input *inp)
{
struct vip_stream *stream = file2stream(file);
if (inp->index)
return -EINVAL;
inp->type = V4L2_INPUT_TYPE_CAMERA;
inp->std = stream->vfd->tvnorms;
sprintf(inp->name, "Camera %u", stream->vfd->num);
return 0;
}
static int vip_g_input(struct file *file, void *priv, unsigned int *i)
{
*i = 0;
return 0;
}
static int vip_s_input(struct file *file, void *priv, unsigned int i)
{
if (i != 0)
return -EINVAL;
return 0;
}
static int vip_querystd(struct file *file, void *fh, v4l2_std_id *std)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
*std = stream->vfd->tvnorms;
v4l2_subdev_call(port->subdev, video, querystd, std);
return 0;
}
static int vip_g_std(struct file *file, void *fh, v4l2_std_id *std)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
*std = stream->vfd->tvnorms;
v4l2_subdev_call(port->subdev, video, g_std, std);
return 0;
}
static int vip_s_std(struct file *file, void *fh, v4l2_std_id std)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
if (stream->vfd->tvnorms == std)
return 0;
if (!(std & stream->vfd->tvnorms))
return -EINVAL;
if (vb2_is_busy(&stream->vb_vidq))
return -EBUSY;
v4l2_subdev_call(port->subdev, video, s_std, std);
return 0;
}
static int vip_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
struct vip_fmt *fmt;
if (f->index >= port->num_active_fmt)
return -EINVAL;
fmt = port->active_fmt[f->index];
f->pixelformat = fmt->fourcc;
return 0;
}
static int vip_enum_framesizes(struct file *file, void *priv,
struct v4l2_frmsizeenum *f)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct vip_fmt *fmt;
int ret;
struct v4l2_subdev_frame_size_enum fse = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
.pad = 0,
};
fmt = find_port_format_by_pix(port, f->pixel_format);
if (!fmt)
return -EINVAL;
fse.index = f->index;
fse.code = fmt->code;
ret = v4l2_subdev_call(port->subdev, pad, enum_frame_size, NULL, &fse);
if (ret)
return -EINVAL;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: index: %d code: %x W:[%d,%d] H:[%d,%d]\n",
__func__, fse.index, fse.code, fse.min_width, fse.max_width,
fse.min_height, fse.max_height);
f->type = V4L2_FRMSIZE_TYPE_DISCRETE;
f->discrete.width = fse.max_width;
f->discrete.height = fse.max_height;
return 0;
}
static int vip_enum_frameintervals(struct file *file, void *priv,
struct v4l2_frmivalenum *f)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
struct vip_fmt *fmt;
struct v4l2_subdev_frame_interval_enum fie = {
.index = f->index,
.width = f->width,
.height = f->height,
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
int ret;
fmt = find_port_format_by_pix(port, f->pixel_format);
if (!fmt)
return -EINVAL;
fie.code = fmt->code;
ret = v4l2_subdev_call(port->subdev, pad, enum_frame_interval,
NULL, &fie);
if (ret)
return ret;
f->type = V4L2_FRMIVAL_TYPE_DISCRETE;
f->discrete = fie.interval;
return 0;
}
static int vip_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
{
struct vip_stream *stream = video_drvdata(file);
struct vip_port *port = stream->port;
return v4l2_g_parm_cap(video_devdata(file), port->subdev, a);
}
static int vip_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
{
struct vip_stream *stream = video_drvdata(file);
struct vip_port *port = stream->port;
return v4l2_s_parm_cap(video_devdata(file), port->subdev, a);
}
static int vip_calc_format_size(struct vip_port *port,
struct vip_fmt *fmt,
struct v4l2_format *f)
{
enum v4l2_field *field;
unsigned int stride;
struct vip_dev *dev = port->dev;
if (!fmt) {
v4l2_dbg(2, debug, &dev->v4l2_dev,
"no vip_fmt format provided!\n");
return -EINVAL;
}
field = &f->fmt.pix.field;
if (*field == V4L2_FIELD_ANY)
*field = V4L2_FIELD_NONE;
else if (V4L2_FIELD_NONE != *field && V4L2_FIELD_ALTERNATE != *field)
return -EINVAL;
v4l_bound_align_image(&f->fmt.pix.width, MIN_W, MAX_W, W_ALIGN,
&f->fmt.pix.height, MIN_H, MAX_H, H_ALIGN,
S_ALIGN);
stride = f->fmt.pix.width * (fmt->vpdma_fmt[0]->depth >> 3);
f->fmt.pix.bytesperline = ALIGN(stride, VPDMA_STRIDE_ALIGN);
f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
if (fmt->coplanar) {
f->fmt.pix.sizeimage += f->fmt.pix.height *
f->fmt.pix.bytesperline *
fmt->vpdma_fmt[VIP_CHROMA]->depth >> 3;
}
f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
v4l2_dbg(3, debug, &dev->v4l2_dev, "calc_format_size: fourcc:%s size: %dx%d bpl:%d img_size:%d\n",
fourcc_to_str(f->fmt.pix.pixelformat),
f->fmt.pix.width, f->fmt.pix.height,
f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
return 0;
}
static inline bool vip_is_size_dma_aligned(u32 bpp, u32 width)
{
return ((width * bpp) == ALIGN(width * bpp, VPDMA_STRIDE_ALIGN));
}
static int vip_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct vip_fmt *fmt;
u32 best_width, best_height, largest_width, largest_height;
int ret, found;
enum vip_csc_state csc_direction;
struct v4l2_subdev_frame_size_enum fse = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
.pad = 0,
};
fmt = find_port_format_by_pix(port, f->fmt.pix.pixelformat);
if (!fmt) {
/* Just get the first one enumerated */
fmt = port->active_fmt[0];
f->fmt.pix.pixelformat = fmt->fourcc;
}
csc_direction = vip_csc_direction(fmt->code, fmt->finfo);
if (csc_direction != VIP_CSC_NA) {
if (!is_csc_available(port)) {
v4l2_dbg(2, debug, &dev->v4l2_dev,
"CSC not available for Fourcc format (0x%08x).\n",
f->fmt.pix.pixelformat);
/* Just get the first one enumerated */
fmt = port->active_fmt[0];
f->fmt.pix.pixelformat = fmt->fourcc;
/* re-evaluate the csc_direction here */
csc_direction = vip_csc_direction(fmt->code,
fmt->finfo);
} else {
v4l2_dbg(3, debug, &dev->v4l2_dev, "CSC active on Port %c: going %s\n",
port->port_id == VIP_PORTA ? 'A' : 'B',
(csc_direction == VIP_CSC_Y2R) ? "Y2R" : "R2Y");
}
}
/*
* Given that sensors might support multiple mbus code we need
* to use the one that matches the requested pixel format
*/
port->try_mbus_framefmt = port->mbus_framefmt;
port->try_mbus_framefmt.code = fmt->code;
/* check for/find a valid width/height */
ret = 0;
found = false;
best_width = 0;
best_height = 0;
largest_width = 0;
largest_height = 0;
fse.code = fmt->code;
for (fse.index = 0; ; fse.index++) {
u32 bpp = fmt->vpdma_fmt[0]->depth >> 3;
ret = v4l2_subdev_call(port->subdev, pad,
enum_frame_size, NULL, &fse);
if (ret)
break;
if (!vip_is_size_dma_aligned(bpp, fse.max_width))
continue;
if (fse.max_width >= largest_width &&
fse.max_height >= largest_height) {
v4l2_dbg(3, debug, &dev->v4l2_dev, "try_fmt loop:%d found new larger: %dx%d\n",
fse.index, fse.max_width, fse.max_height);
largest_width = fse.max_width;
largest_height = fse.max_height;
}
if (fse.max_width >= f->fmt.pix.width &&
fse.max_height >= f->fmt.pix.height) {
v4l2_dbg(3, debug, &dev->v4l2_dev, "try_fmt loop:%d found at least larger: %dx%d\n",
fse.index, fse.max_width, fse.max_height);
if (!best_width ||
((abs(best_width - f->fmt.pix.width) >=
abs(fse.max_width - f->fmt.pix.width)) &&
(abs(best_height - f->fmt.pix.height) >=
abs(fse.max_height - f->fmt.pix.height)))) {
best_width = fse.max_width;
best_height = fse.max_height;
v4l2_dbg(3, debug, &dev->v4l2_dev, "try_fmt loop:%d found new best: %dx%d\n",
fse.index, fse.max_width,
fse.max_height);
}
}
if (f->fmt.pix.width == fse.max_width &&
f->fmt.pix.height == fse.max_height) {
found = true;
v4l2_dbg(3, debug, &dev->v4l2_dev, "try_fmt loop:%d found direct match: %dx%d\n",
fse.index, fse.max_width,
fse.max_height);
break;
}
if (f->fmt.pix.width >= fse.min_width &&
f->fmt.pix.width <= fse.max_width &&
f->fmt.pix.height >= fse.min_height &&
f->fmt.pix.height <= fse.max_height) {
found = true;
v4l2_dbg(3, debug, &dev->v4l2_dev, "try_fmt loop:%d found direct range match: %dx%d\n",
fse.index, fse.max_width,
fse.max_height);
break;
}
}
if (found) {
port->try_mbus_framefmt.width = f->fmt.pix.width;
port->try_mbus_framefmt.height = f->fmt.pix.height;
/* No need to check for scaling */
goto calc_size;
} else if (f->fmt.pix.width > largest_width) {
port->try_mbus_framefmt.width = largest_width;
port->try_mbus_framefmt.height = largest_height;
} else if (best_width) {
port->try_mbus_framefmt.width = best_width;
port->try_mbus_framefmt.height = best_height;
} else {
/* use existing values as default */
}
v4l2_dbg(3, debug, &dev->v4l2_dev, "try_fmt best subdev size: %dx%d\n",
port->try_mbus_framefmt.width,
port->try_mbus_framefmt.height);
if (is_scaler_available(port) &&
csc_direction != VIP_CSC_Y2R &&
!vip_is_mbuscode_raw(fmt->code) &&
f->fmt.pix.height <= port->try_mbus_framefmt.height &&
port->try_mbus_framefmt.height <= SC_MAX_PIXEL_HEIGHT &&
port->try_mbus_framefmt.width <= SC_MAX_PIXEL_WIDTH) {
/*
* Scaler is only accessible if the dst colorspace is YUV.
* As the input to the scaler must be in YUV mode only.
*
* Scaling up is allowed only horizontally.
*/
unsigned int hratio, vratio, width_align, height_align;
u32 bpp = fmt->vpdma_fmt[0]->depth >> 3;
v4l2_dbg(3, debug, &dev->v4l2_dev, "Scaler active on Port %c: requesting %dx%d\n",
port->port_id == VIP_PORTA ? 'A' : 'B',
f->fmt.pix.width, f->fmt.pix.height);
/* Just make sure everything is properly aligned */
width_align = ALIGN(f->fmt.pix.width * bpp, VPDMA_STRIDE_ALIGN);
width_align /= bpp;
height_align = ALIGN(f->fmt.pix.height, 2);
f->fmt.pix.width = width_align;
f->fmt.pix.height = height_align;
hratio = f->fmt.pix.width * 1000 /
port->try_mbus_framefmt.width;
vratio = f->fmt.pix.height * 1000 /
port->try_mbus_framefmt.height;
if (hratio < 125) {
f->fmt.pix.width = port->try_mbus_framefmt.width / 8;
v4l2_dbg(3, debug, &dev->v4l2_dev, "Horizontal scaling ratio out of range adjusting -> %d\n",
f->fmt.pix.width);
}
if (vratio < 188) {
f->fmt.pix.height = port->try_mbus_framefmt.height / 4;
v4l2_dbg(3, debug, &dev->v4l2_dev, "Vertical scaling ratio out of range adjusting -> %d\n",
f->fmt.pix.height);
}
v4l2_dbg(3, debug, &dev->v4l2_dev, "Scaler: got %dx%d\n",
f->fmt.pix.width, f->fmt.pix.height);
} else {
/* use existing values as default */
f->fmt.pix.width = port->try_mbus_framefmt.width;
f->fmt.pix.height = port->try_mbus_framefmt.height;
}
calc_size:
/* That we have a fmt calculate imagesize and bytesperline */
return vip_calc_format_size(port, fmt, f);
}
static int vip_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
/* Use last known values or defaults */
f->fmt.pix.width = stream->width;
f->fmt.pix.height = stream->height;
f->fmt.pix.pixelformat = port->fmt->fourcc;
f->fmt.pix.field = stream->sup_field;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
f->fmt.pix.bytesperline = stream->bytesperline;
f->fmt.pix.sizeimage = stream->sizeimage;
return 0;
}
static int vip_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct v4l2_subdev_format sfmt;
struct v4l2_mbus_framefmt *mf;
enum vip_csc_state csc_direction;
int ret;
ret = vip_try_fmt_vid_cap(file, priv, f);
if (ret)
return ret;
if (vb2_is_busy(&stream->vb_vidq)) {
v4l2_err(&dev->v4l2_dev, "%s queue busy\n", __func__);
return -EBUSY;
}
/*
* Check if we need the scaler or not
*
* Since on previous S_FMT call the scaler might have been
* allocated if it is not needed in this instance we will
* attempt to free it just in case.
*
* free_scaler() is harmless unless the current port
* allocated it.
*/
if (f->fmt.pix.width == port->try_mbus_framefmt.width &&
f->fmt.pix.height == port->try_mbus_framefmt.height)
free_scaler(port);
else
allocate_scaler(port);
port->fmt = find_port_format_by_pix(port,
f->fmt.pix.pixelformat);
stream->width = f->fmt.pix.width;
stream->height = f->fmt.pix.height;
stream->bytesperline = f->fmt.pix.bytesperline;
stream->sizeimage = f->fmt.pix.sizeimage;
stream->sup_field = f->fmt.pix.field;
stream->field = f->fmt.pix.field;
port->c_rect.left = 0;
port->c_rect.top = 0;
port->c_rect.width = stream->width;
port->c_rect.height = stream->height;
/*
* Check if we need the csc unit or not
*
* Since on previous S_FMT call, the csc might have been
* allocated if it is not needed in this instance we will
* attempt to free it just in case.
*
* free_csc() is harmless unless the current port
* allocated it.
*/
csc_direction = vip_csc_direction(port->fmt->code, port->fmt->finfo);
if (csc_direction == VIP_CSC_NA)
free_csc(port);
else
allocate_csc(port, csc_direction);
if (stream->sup_field == V4L2_FIELD_ALTERNATE)
port->flags |= FLAG_INTERLACED;
else
port->flags &= ~FLAG_INTERLACED;
memset(&sfmt, 0, sizeof(sfmt));
mf = &sfmt.format;
v4l2_fill_mbus_format(mf, &f->fmt.pix, port->fmt->code);
/* Make sure to use the subdev size found in the try_fmt */
mf->width = port->try_mbus_framefmt.width;
mf->height = port->try_mbus_framefmt.height;
sfmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
sfmt.pad = 0;
ret = v4l2_subdev_call(port->subdev, pad, set_fmt, NULL, &sfmt);
if (ret) {
v4l2_dbg(1, debug, &dev->v4l2_dev, "set_fmt failed in subdev\n");
return ret;
}
/* Save it */
port->mbus_framefmt = *mf;
v4l2_dbg(3, debug, &dev->v4l2_dev, "s_fmt subdev fmt mbus_code: %04X size: %dx%d\n",
port->mbus_framefmt.code,
port->mbus_framefmt.width, port->mbus_framefmt.height);
return 0;
}
static void vip_unset_csc_y2r(struct vip_dev *dev, struct vip_port *port)
{
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_SRC_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
}
}
static void vip_unset_csc_r2y(struct vip_dev *dev, struct vip_port *port)
{
if (port->port_id != VIP_PORTA) {
v4l2_err(&dev->v4l2_dev, "RGB sensor can only be on Port A\n");
return;
}
if (port->scaler && port->fmt->coplanar) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else if (port->scaler) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else if (port->fmt->coplanar) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
}
}
static void vip_unset_rgb(struct vip_dev *dev, struct vip_port *port)
{
if (port->port_id != VIP_PORTA) {
v4l2_err(&dev->v4l2_dev, "RGB sensor can only be on Port A\n");
return;
}
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
}
static void vip_unset_yuv(struct vip_dev *dev, struct vip_port *port)
{
if (port->scaler && port->fmt->coplanar) {
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_2_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
}
} else if (port->scaler) {
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_2_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_CHR_DS_2_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
}
} else if (port->fmt->coplanar) {
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_CHR_DS_2_SRC_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_CHR_DS_2_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
}
} else {
/*
* We undo all data path setting except for the multi
* stream case.
* Because we cannot disrupt other on-going capture if only
* one stream is terminated the other might still be going
*/
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
}
}
/*
* Does the exact opposite of set_fmt_params
* It makes sure the DataPath register is sane after tear down
*/
static void unset_fmt_params(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
stream->sequence = 0;
stream->field = V4L2_FIELD_TOP;
/* Undo CSC Y2R routing */
if (port->csc == VIP_CSC_Y2R) {
vip_unset_csc_y2r(dev, port);
/* Undo CSC R2Y routing */
} else if (port->csc == VIP_CSC_R2Y) {
vip_unset_csc_r2y(dev, port);
/* Undo RGB output routing (no CSC) */
} else if (v4l2_is_format_rgb(port->fmt->finfo)) {
vip_unset_rgb(dev, port);
/* Undo YUV routing with no CSC */
} else {
vip_unset_yuv(dev, port);
}
}
static void vip_config_csc_y2r(struct vip_dev *dev, struct vip_port *port)
{
port->flags &= ~FLAG_MULT_PORT;
/* Set alpha component in background color */
vpdma_set_bg_color(dev->shared->vpdma,
(struct vpdma_data_format *)
port->fmt->vpdma_fmt[0],
0xff);
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_RGB_SRC_DATA_SELECT, 1);
} else {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 2);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 1);
}
}
static void vip_config_csc_r2y(struct vip_dev *dev, struct vip_port *port)
{
if (port->port_id != VIP_PORTA) {
v4l2_err(&dev->v4l2_dev, "RGB sensor can only be on Port A\n");
return;
}
port->flags &= ~FLAG_MULT_PORT;
if (port->scaler && port->fmt->coplanar) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 4);
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else if (port->scaler) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 4);
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 1);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else if (port->fmt->coplanar) {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 4);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 2);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_CSC_SRC_DATA_SELECT, 4);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 2);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 1);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
}
}
static void vip_config_rgb(struct vip_dev *dev, struct vip_port *port)
{
if (port->port_id != VIP_PORTA) {
v4l2_err(&dev->v4l2_dev, "RGB sensor can only be on Port A\n");
return;
}
port->flags &= ~FLAG_MULT_PORT;
/* Set alpha component in background color */
vpdma_set_bg_color(dev->shared->vpdma,
(struct vpdma_data_format *)
port->fmt->vpdma_fmt[0],
0xff);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 1);
}
static void vip_config_yuv(struct vip_dev *dev, struct vip_port *port)
{
if (port->scaler && port->fmt->coplanar) {
port->flags &= ~FLAG_MULT_PORT;
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 2);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 3);
vip_set_slice_path(dev, VIP_CHR_DS_2_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
}
} else if (port->scaler) {
port->flags &= ~FLAG_MULT_PORT;
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 2);
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 1);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_SC_SRC_DATA_SELECT, 3);
vip_set_slice_path(dev, VIP_CHR_DS_2_SRC_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 1);
vip_set_slice_path(dev, VIP_CHR_DS_2_DATA_BYPASS, 1);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
}
} else if (port->fmt->coplanar) {
port->flags &= ~FLAG_MULT_PORT;
if (port->port_id == VIP_PORTA) {
vip_set_slice_path(dev, VIP_CHR_DS_1_SRC_DATA_SELECT, 3);
vip_set_slice_path(dev, VIP_CHR_DS_1_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_HI_DATA_SELECT, 0);
} else {
vip_set_slice_path(dev, VIP_CHR_DS_2_SRC_DATA_SELECT, 4);
vip_set_slice_path(dev, VIP_CHR_DS_2_DATA_BYPASS, 0);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 0);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
}
} else {
port->flags |= FLAG_MULT_PORT;
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 1);
vip_set_slice_path(dev, VIP_RGB_OUT_LO_DATA_SELECT, 0);
}
}
/*
* Set the registers that are modified when the video format changes.
*/
static void set_fmt_params(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
stream->sequence = 0;
stream->field = V4L2_FIELD_TOP;
/* YUV input, RGB output using CSC (Y2R) */
if (port->csc == VIP_CSC_Y2R) {
vip_config_csc_y2r(dev, port);
/* RGB input, YUV output using CSC (R2Y) */
} else if (port->csc == VIP_CSC_R2Y) {
vip_config_csc_r2y(dev, port);
/* RGB output without CSC */
} else if (v4l2_is_format_rgb(port->fmt->finfo)) {
vip_config_rgb(dev, port);
/* YUV output without CSC */
} else {
vip_config_yuv(dev, port);
}
}
static int vip_g_selection(struct file *file, void *fh,
struct v4l2_selection *s)
{
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
struct vip_stream *stream = file2stream(file);
switch (s->target) {
case V4L2_SEL_TGT_CROP_BOUNDS:
case V4L2_SEL_TGT_CROP_DEFAULT:
s->r.left = 0;
s->r.top = 0;
s->r.width = stream->width;
s->r.height = stream->height;
return 0;
case V4L2_SEL_TGT_CROP:
s->r = stream->port->c_rect;
return 0;
}
return -EINVAL;
}
static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
{
if (a->left < b->left || a->top < b->top)
return 0;
if (a->left + a->width > b->left + b->width)
return 0;
if (a->top + a->height > b->top + b->height)
return 0;
return 1;
}
static int vip_s_selection(struct file *file, void *fh,
struct v4l2_selection *s)
{
struct vip_stream *stream = file2stream(file);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct v4l2_rect r = s->r;
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
if (s->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
if (vb2_is_busy(&stream->vb_vidq))
return -EBUSY;
v4l_bound_align_image(&r.width, 0, stream->width, 0,
&r.height, 0, stream->height, 0, 0);
r.left = clamp_t(unsigned int, r.left, 0, stream->width - r.width);
r.top = clamp_t(unsigned int, r.top, 0, stream->height - r.height);
if (s->flags & V4L2_SEL_FLAG_LE && !enclosed_rectangle(&r, &s->r))
return -ERANGE;
if (s->flags & V4L2_SEL_FLAG_GE && !enclosed_rectangle(&s->r, &r))
return -ERANGE;
s->r = r;
stream->port->c_rect = r;
v4l2_dbg(1, debug, &dev->v4l2_dev, "cropped (%d,%d)/%dx%d of %dx%d\n",
r.left, r.top, r.width, r.height,
stream->width, stream->height);
return 0;
}
static const struct v4l2_ioctl_ops vip_ioctl_ops = {
.vidioc_querycap = vip_querycap,
.vidioc_enum_input = vip_enuminput,
.vidioc_g_input = vip_g_input,
.vidioc_s_input = vip_s_input,
.vidioc_querystd = vip_querystd,
.vidioc_g_std = vip_g_std,
.vidioc_s_std = vip_s_std,
.vidioc_enum_fmt_vid_cap = vip_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = vip_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vip_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vip_s_fmt_vid_cap,
.vidioc_enum_frameintervals = vip_enum_frameintervals,
.vidioc_enum_framesizes = vip_enum_framesizes,
.vidioc_s_parm = vip_s_parm,
.vidioc_g_parm = vip_g_parm,
.vidioc_g_selection = vip_g_selection,
.vidioc_s_selection = vip_s_selection,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
/*
* Videobuf operations
*/
static int vip_queue_setup(struct vb2_queue *vq,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], struct device *alloc_devs[])
{
struct vip_stream *stream = vb2_get_drv_priv(vq);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
unsigned int size = stream->sizeimage;
if (*nplanes)
return sizes[0] < size ? -EINVAL : 0;
*nplanes = 1;
sizes[0] = size;
v4l2_dbg(1, debug, &dev->v4l2_dev, "get %d buffer(s) of size %d each.\n",
*nbuffers, sizes[0]);
return 0;
}
static int vip_buf_prepare(struct vb2_buffer *vb)
{
struct vip_stream *stream = vb2_get_drv_priv(vb->vb2_queue);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
if (vb2_plane_size(vb, 0) < stream->sizeimage) {
v4l2_dbg(1, debug, &dev->v4l2_dev,
"%s data will not fit into plane (%lu < %lu)\n",
__func__, vb2_plane_size(vb, 0),
(long)stream->sizeimage);
return -EINVAL;
}
vb2_set_plane_payload(vb, 0, stream->sizeimage);
return 0;
}
static void vip_buf_queue(struct vb2_buffer *vb)
{
struct vip_stream *stream = vb2_get_drv_priv(vb->vb2_queue);
struct vip_dev *dev = stream->port->dev;
struct vip_buffer *buf = container_of(vb, struct vip_buffer,
vb.vb2_buf);
unsigned long flags;
spin_lock_irqsave(&dev->slock, flags);
list_add_tail(&buf->list, &stream->vidq);
spin_unlock_irqrestore(&dev->slock, flags);
}
static void return_buffers(struct vb2_queue *vq, int state)
{
struct vip_stream *stream = vb2_get_drv_priv(vq);
struct vip_dev *dev = stream->port->dev;
struct vip_buffer *buf;
unsigned long flags;
spin_lock_irqsave(&dev->slock, flags);
/* release all active buffers */
while (!list_empty(&stream->post_bufs)) {
buf = list_entry(stream->post_bufs.next,
struct vip_buffer, list);
list_del(&buf->list);
if (buf->drop == 1)
list_add_tail(&buf->list, &stream->dropq);
else
vb2_buffer_done(&buf->vb.vb2_buf, state);
}
while (!list_empty(&stream->vidq)) {
buf = list_entry(stream->vidq.next, struct vip_buffer, list);
list_del(&buf->list);
vb2_buffer_done(&buf->vb.vb2_buf, state);
}
INIT_LIST_HEAD(&stream->post_bufs);
INIT_LIST_HEAD(&stream->vidq);
spin_unlock_irqrestore(&dev->slock, flags);
}
static int vip_setup_scaler(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct sc_data *sc = dev->sc;
struct csc_data *csc = dev->csc;
struct vpdma_data *vpdma = dev->shared->vpdma;
struct vip_mmr_adb *mmr_adb = port->mmr_adb.addr;
int list_num = stream->list_num;
int timeout = 500;
struct v4l2_format dst_f;
struct v4l2_format src_f;
memset(&src_f, 0, sizeof(src_f));
src_f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
v4l2_fill_pix_format(&src_f.fmt.pix, &port->mbus_framefmt);
src_f.fmt.pix.pixelformat = vip_mbus_code_to_fourcc(port->fmt->code);
dst_f = src_f;
dst_f.fmt.pix.pixelformat = port->fmt->fourcc;
dst_f.fmt.pix.width = stream->width;
dst_f.fmt.pix.height = stream->height;
/* if scaler not associated with this port then skip */
if (port->scaler) {
sc_set_hs_coeffs(sc, port->sc_coeff_h.addr,
port->mbus_framefmt.width,
port->c_rect.width);
sc_set_vs_coeffs(sc, port->sc_coeff_v.addr,
port->mbus_framefmt.height,
port->c_rect.height);
sc_config_scaler(sc, &mmr_adb->sc_regs0[0],
&mmr_adb->sc_regs8[0], &mmr_adb->sc_regs17[0],
port->mbus_framefmt.width,
port->mbus_framefmt.height,
port->c_rect.width,
port->c_rect.height);
port->load_mmrs = true;
}
/* if csc not associated with this port then skip */
if (port->csc) {
csc_set_coeff(csc, &mmr_adb->csc_regs[0],
&src_f, &dst_f);
port->load_mmrs = true;
}
/* If coeff are already loaded then skip */
if (!sc->load_coeff_v && !sc->load_coeff_h && !port->load_mmrs)
return 0;
if (vpdma_list_busy(vpdma, list_num)) {
v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: List %d is busy\n",
__func__, list_num);
}
/* Make sure we start with a clean list */
vpdma_reset_desc_list(&stream->desc_list);
/* config descriptors */
if (port->load_mmrs) {
vpdma_map_desc_buf(vpdma, &port->mmr_adb);
vpdma_add_cfd_adb(&stream->desc_list, CFD_MMR_CLIENT,
&port->mmr_adb);
port->load_mmrs = false;
v4l2_dbg(3, debug, &dev->v4l2_dev, "Added mmr_adb config desc\n");
}
if (sc->loaded_coeff_h != port->sc_coeff_h.dma_addr ||
sc->load_coeff_h) {
vpdma_map_desc_buf(vpdma, &port->sc_coeff_h);
vpdma_add_cfd_block(&stream->desc_list,
VIP_SLICE1_CFD_SC_CLIENT + dev->slice_id,
&port->sc_coeff_h, 0);
sc->loaded_coeff_h = port->sc_coeff_h.dma_addr;
sc->load_coeff_h = false;
v4l2_dbg(3, debug, &dev->v4l2_dev, "Added sc_coeff_h config desc\n");
}
if (sc->loaded_coeff_v != port->sc_coeff_v.dma_addr ||
sc->load_coeff_v) {
vpdma_map_desc_buf(vpdma, &port->sc_coeff_v);
vpdma_add_cfd_block(&stream->desc_list,
VIP_SLICE1_CFD_SC_CLIENT + dev->slice_id,
&port->sc_coeff_v, SC_COEF_SRAM_SIZE >> 4);
sc->loaded_coeff_v = port->sc_coeff_v.dma_addr;
sc->load_coeff_v = false;
v4l2_dbg(3, debug, &dev->v4l2_dev, "Added sc_coeff_v config desc\n");
}
v4l2_dbg(3, debug, stream, "CFD_SC_CLIENT %d slice_id: %d\n",
VIP_SLICE1_CFD_SC_CLIENT + dev->slice_id, dev->slice_id);
vpdma_map_desc_buf(vpdma, &stream->desc_list.buf);
v4l2_dbg(3, debug, &dev->v4l2_dev, "Submitting desc on list# %d\n", list_num);
vpdma_submit_descs(vpdma, &stream->desc_list, list_num);
while (vpdma_list_busy(vpdma, list_num) && timeout--)
usleep_range(1000, 1100);
vpdma_unmap_desc_buf(dev->shared->vpdma, &port->mmr_adb);
vpdma_unmap_desc_buf(dev->shared->vpdma, &port->sc_coeff_h);
vpdma_unmap_desc_buf(dev->shared->vpdma, &port->sc_coeff_v);
vpdma_unmap_desc_buf(dev->shared->vpdma, &stream->desc_list.buf);
vpdma_reset_desc_list(&stream->desc_list);
if (timeout <= 0) {
v4l2_err(&dev->v4l2_dev, "Timed out setting up scaler through VPDMA list\n");
return -EBUSY;
}
return 0;
}
static int vip_load_vpdma_list_fifo(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct vpdma_data *vpdma = dev->shared->vpdma;
int list_num = stream->list_num;
struct vip_buffer *buf;
unsigned long flags;
int timeout, i;
if (vpdma_list_busy(dev->shared->vpdma, stream->list_num))
return -EBUSY;
for (i = 0; i < VIP_VPDMA_FIFO_SIZE; i++) {
spin_lock_irqsave(&dev->slock, flags);
if (list_empty(&stream->vidq)) {
v4l2_err(&dev->v4l2_dev, "No buffer left!");
spin_unlock_irqrestore(&dev->slock, flags);
return -EINVAL;
}
buf = list_entry(stream->vidq.next,
struct vip_buffer, list);
buf->drop = false;
list_move_tail(&buf->list, &stream->post_bufs);
spin_unlock_irqrestore(&dev->slock, flags);
v4l2_dbg(2, debug, &dev->v4l2_dev, "%s: start_dma vb2 buf idx:%d\n",
__func__, buf->vb.vb2_buf.index);
start_dma(stream, buf);
timeout = 500;
while (vpdma_list_busy(vpdma, list_num) && timeout--)
usleep_range(1000, 1100);
if (timeout <= 0) {
v4l2_err(&dev->v4l2_dev, "Timed out loading VPDMA list fifo\n");
return -EBUSY;
}
}
return 0;
}
static int vip_start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct vip_stream *stream = vb2_get_drv_priv(vq);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
int ret;
ret = vip_setup_scaler(stream);
if (ret)
goto err;
/*
* Make sure the scaler is configured before the datapath is
* enabled. The scaler can only load the coefficient
* parameters when it is idle. If the scaler path is enabled
* and video data is being received then the VPDMA transfer will
* stall indefinitely.
*/
set_fmt_params(stream);
ret = vip_setup_parser(port);
if (ret)
goto err;
if (port->subdev) {
ret = v4l2_subdev_call(port->subdev, video, s_stream, 1);
if (ret) {
v4l2_err(&dev->v4l2_dev, "stream on failed in subdev\n");
goto err;
}
}
stream->sequence = 0;
stream->field = V4L2_FIELD_TOP;
populate_desc_list(stream);
ret = vip_load_vpdma_list_fifo(stream);
if (ret)
goto err;
stream->num_recovery = 0;
clear_irqs(dev, dev->slice_id, stream->list_num);
enable_irqs(dev, dev->slice_id, stream->list_num);
vip_schedule_next_buffer(stream);
vip_parser_stop_imm(port, false);
vip_enable_parser(port, true);
return 0;
err:
return_buffers(vq, VB2_BUF_STATE_QUEUED);
return ret;
}
/*
* Abort streaming and wait for last buffer
*/
static void vip_stop_streaming(struct vb2_queue *vq)
{
struct vip_stream *stream = vb2_get_drv_priv(vq);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
int ret;
vip_parser_stop_imm(port, true);
vip_enable_parser(port, false);
unset_fmt_params(stream);
disable_irqs(dev, dev->slice_id, stream->list_num);
clear_irqs(dev, dev->slice_id, stream->list_num);
if (port->subdev) {
ret = v4l2_subdev_call(port->subdev, video, s_stream, 0);
if (ret)
v4l2_err(&dev->v4l2_dev, "Failed to stop subdev stream");
}
stop_dma(stream, true);
return_buffers(vq, VB2_BUF_STATE_ERROR);
vpdma_unmap_desc_buf(dev->shared->vpdma, &stream->desc_list.buf);
vpdma_reset_desc_list(&stream->desc_list);
}
static const struct vb2_ops vip_video_qops = {
.queue_setup = vip_queue_setup,
.buf_prepare = vip_buf_prepare,
.buf_queue = vip_buf_queue,
.start_streaming = vip_start_streaming,
.stop_streaming = vip_stop_streaming,
};
static int vip_init_dev(struct vip_dev *dev)
{
if (dev->num_ports != 0)
goto done;
vip_set_clock_enable(dev, 1);
vip_module_toggle(dev, VIP_SC_RST, false);
vip_module_toggle(dev, VIP_CSC_RST, false);
done:
dev->num_ports++;
return 0;
}
static inline bool is_scaler_available(struct vip_port *port)
{
if (port->endpoint.bus_type == V4L2_MBUS_PARALLEL)
if (port->dev->sc_assigned == VIP_NOT_ASSIGNED ||
port->dev->sc_assigned == port->port_id)
return true;
return false;
}
static inline bool allocate_scaler(struct vip_port *port)
{
if (is_scaler_available(port)) {
if (port->dev->sc_assigned == VIP_NOT_ASSIGNED ||
port->dev->sc_assigned == port->port_id) {
port->dev->sc_assigned = port->port_id;
port->scaler = true;
return true;
}
}
return false;
}
static inline void free_scaler(struct vip_port *port)
{
if (port->dev->sc_assigned == port->port_id) {
port->dev->sc_assigned = VIP_NOT_ASSIGNED;
port->scaler = false;
}
}
static bool is_csc_available(struct vip_port *port)
{
if (port->endpoint.bus_type == V4L2_MBUS_PARALLEL)
if (port->dev->csc_assigned == VIP_NOT_ASSIGNED ||
port->dev->csc_assigned == port->port_id)
return true;
return false;
}
static bool allocate_csc(struct vip_port *port,
enum vip_csc_state csc_direction)
{
struct vip_dev *dev = port->dev;
/* Is CSC needed? */
if (csc_direction != VIP_CSC_NA) {
if (is_csc_available(port)) {
port->dev->csc_assigned = port->port_id;
port->csc = csc_direction;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: csc allocated: dir: %d\n",
__func__, csc_direction);
return true;
}
}
return false;
}
static void free_csc(struct vip_port *port)
{
struct vip_dev *dev = port->dev;
if (port->dev->csc_assigned == port->port_id) {
port->dev->csc_assigned = VIP_NOT_ASSIGNED;
port->csc = VIP_CSC_NA;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: csc freed\n",
__func__);
}
}
static int vip_init_port(struct vip_port *port)
{
struct vip_dev *dev = port->dev;
int ret;
struct vip_fmt *fmt;
struct v4l2_subdev_format sd_fmt = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
.pad = 0,
};
struct v4l2_mbus_framefmt *mbus_fmt = &sd_fmt.format;
if (port->num_streams != 0)
goto done;
ret = vip_init_dev(port->dev);
if (ret)
goto done;
/* Get subdevice current frame format */
ret = v4l2_subdev_call(port->subdev, pad, get_fmt, NULL, &sd_fmt);
if (ret)
v4l2_dbg(1, debug, &dev->v4l2_dev, "init_port get_fmt failed in subdev: (%d)\n",
ret);
/* try to find one that matches */
fmt = find_port_format_by_code(port, mbus_fmt->code);
if (!fmt) {
v4l2_dbg(1, debug, &dev->v4l2_dev, "subdev default mbus_fmt %04x is not matched.\n",
mbus_fmt->code);
/* if all else fails just pick the first one */
fmt = port->active_fmt[0];
mbus_fmt->code = fmt->code;
sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
sd_fmt.pad = 0;
ret = v4l2_subdev_call(port->subdev, pad, set_fmt,
NULL, &sd_fmt);
if (ret)
v4l2_dbg(1, debug, &dev->v4l2_dev, "init_port set_fmt failed in subdev: (%d)\n",
ret);
}
/* Assign current format */
port->fmt = fmt;
port->mbus_framefmt = *mbus_fmt;
v4l2_dbg(3, debug, &dev->v4l2_dev, "%s: g_mbus_fmt subdev mbus_code: %04X fourcc:%s size: %dx%d\n",
__func__, fmt->code,
fourcc_to_str(fmt->fourcc),
mbus_fmt->width, mbus_fmt->height);
if (mbus_fmt->field == V4L2_FIELD_ALTERNATE)
port->flags |= FLAG_INTERLACED;
else
port->flags &= ~FLAG_INTERLACED;
port->c_rect.left = 0;
port->c_rect.top = 0;
port->c_rect.width = mbus_fmt->width;
port->c_rect.height = mbus_fmt->height;
ret = vpdma_alloc_desc_buf(&port->sc_coeff_h, SC_COEF_SRAM_SIZE);
if (ret != 0)
return ret;
ret = vpdma_alloc_desc_buf(&port->sc_coeff_v, SC_COEF_SRAM_SIZE);
if (ret != 0)
goto free_sc_h;
ret = vpdma_alloc_desc_buf(&port->mmr_adb, sizeof(struct vip_mmr_adb));
if (ret != 0)
goto free_sc_v;
init_adb_hdrs(port);
vip_enable_parser(port, false);
done:
port->num_streams++;
return 0;
free_sc_v:
vpdma_free_desc_buf(&port->sc_coeff_v);
free_sc_h:
vpdma_free_desc_buf(&port->sc_coeff_h);
return ret;
}
static int vip_init_stream(struct vip_stream *stream)
{
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
struct vip_fmt *fmt;
struct v4l2_mbus_framefmt *mbus_fmt;
struct v4l2_format f;
int ret;
ret = vip_init_port(port);
if (ret != 0)
return ret;
fmt = port->fmt;
mbus_fmt = &port->mbus_framefmt;
memset(&f, 0, sizeof(f));
/* Properly calculate the sizeimage and bytesperline values. */
v4l2_fill_pix_format(&f.fmt.pix, mbus_fmt);
f.fmt.pix.pixelformat = fmt->fourcc;
ret = vip_calc_format_size(port, fmt, &f);
if (ret)
return ret;
stream->width = f.fmt.pix.width;
stream->height = f.fmt.pix.height;
stream->sup_field = f.fmt.pix.field;
stream->bytesperline = f.fmt.pix.bytesperline;
stream->sizeimage = f.fmt.pix.sizeimage;
v4l2_dbg(3, debug, &dev->v4l2_dev, "init_stream fourcc:%s size: %dx%d bpl:%d img_size:%d\n",
fourcc_to_str(f.fmt.pix.pixelformat),
f.fmt.pix.width, f.fmt.pix.height,
f.fmt.pix.bytesperline, f.fmt.pix.sizeimage);
v4l2_dbg(3, debug, &dev->v4l2_dev, "init_stream vpdma data type: 0x%02X\n",
port->fmt->vpdma_fmt[0]->data_type);
ret = vpdma_create_desc_list(&stream->desc_list, VIP_DESC_LIST_SIZE,
VPDMA_LIST_TYPE_NORMAL);
if (ret != 0)
return ret;
stream->write_desc = (struct vpdma_dtd *)stream->desc_list.buf.addr
+ 15;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: stream instance %pa\n",
__func__, &stream);
return 0;
}
static void vip_release_dev(struct vip_dev *dev)
{
/*
* On last close, disable clocks to conserve power
*/
if (--dev->num_ports == 0) {
/* reset the scaler module */
vip_module_toggle(dev, VIP_SC_RST, true);
vip_module_toggle(dev, VIP_CSC_RST, true);
vip_set_clock_enable(dev, 0);
}
}
static int vip_set_crop_parser(struct vip_port *port)
{
struct vip_dev *dev = port->dev;
struct vip_parser_data *parser = dev->parser;
u32 hcrop = 0, vcrop = 0;
u32 width = port->mbus_framefmt.width;
if (port->fmt->vpdma_fmt[0] == &vpdma_raw_fmts[VPDMA_DATA_FMT_RAW8]) {
/*
* Special case since we are faking a YUV422 16bit format
* to have the vpdma perform the needed byte swap
* we need to adjust the pixel width accordingly
* otherwise the parser will attempt to collect more pixels
* then available and the vpdma transfer will exceed the
* allocated frame buffer.
*/
width >>= 1;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: 8 bit raw detected, adjusting width to %d\n",
__func__, width);
}
/*
* Set Parser Crop parameters to source size otherwise
* scaler and colorspace converter will yield garbage.
*/
hcrop = VIP_ACT_BYPASS;
insert_field(&hcrop, 0, VIP_ACT_SKIP_NUMPIX_MASK,
VIP_ACT_SKIP_NUMPIX_SHFT);
insert_field(&hcrop, width,
VIP_ACT_USE_NUMPIX_MASK, VIP_ACT_USE_NUMPIX_SHFT);
reg_write(parser, VIP_PARSER_CROP_H_PORT(port->port_id), hcrop);
insert_field(&vcrop, 0, VIP_ACT_SKIP_NUMLINES_MASK,
VIP_ACT_SKIP_NUMLINES_SHFT);
insert_field(&vcrop, port->mbus_framefmt.height,
VIP_ACT_USE_NUMLINES_MASK, VIP_ACT_USE_NUMLINES_SHFT);
reg_write(parser, VIP_PARSER_CROP_V_PORT(port->port_id), vcrop);
return 0;
}
static int vip_setup_parser(struct vip_port *port)
{
struct vip_dev *dev = port->dev;
struct vip_parser_data *parser = dev->parser;
struct v4l2_fwnode_endpoint *endpoint = &port->endpoint;
int iface, sync_type;
u32 flags = 0, config0;
/* Reset the port */
vip_reset_parser(port, true);
usleep_range(200, 250);
vip_reset_parser(port, false);
config0 = reg_read(parser, VIP_PARSER_PORT(port->port_id));
if (endpoint->bus_type == V4L2_MBUS_BT656) {
flags = endpoint->bus.parallel.flags;
iface = DUAL_8B_INTERFACE;
/*
* Ideally, this should come from subdev
* port->fmt can be anything once CSC is enabled
*/
if (vip_is_mbuscode_rgb(port->fmt->code))
sync_type = EMBEDDED_SYNC_SINGLE_RGB_OR_YUV444;
else
sync_type = EMBEDDED_SYNC_LINE_MULTIPLEXED_YUV422;
} else if (endpoint->bus_type == V4L2_MBUS_PARALLEL) {
flags = endpoint->bus.parallel.flags;
switch (endpoint->bus.parallel.bus_width) {
case 24:
iface = SINGLE_24B_INTERFACE;
break;
case 16:
iface = SINGLE_16B_INTERFACE;
break;
case 8:
default:
iface = DUAL_8B_INTERFACE;
}
if (vip_is_mbuscode_rgb(port->fmt->code))
sync_type = DISCRETE_SYNC_SINGLE_RGB_24B;
else
sync_type = DISCRETE_SYNC_SINGLE_YUV422;
if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
config0 |= VIP_HSYNC_POLARITY;
else if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
config0 &= ~VIP_HSYNC_POLARITY;
if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
config0 |= VIP_VSYNC_POLARITY;
else if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
config0 &= ~VIP_VSYNC_POLARITY;
config0 &= ~VIP_USE_ACTVID_HSYNC_ONLY;
config0 |= VIP_ACTVID_POLARITY;
config0 |= VIP_DISCRETE_BASIC_MODE;
} else {
v4l2_err(&dev->v4l2_dev, "Device doesn't support CSI2");
return -EINVAL;
}
if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) {
vip_set_pclk_invert(port);
config0 |= VIP_PIXCLK_EDGE_POLARITY;
} else {
config0 &= ~VIP_PIXCLK_EDGE_POLARITY;
}
config0 |= ((sync_type & VIP_SYNC_TYPE_MASK) << VIP_SYNC_TYPE_SHFT);
reg_write(parser, VIP_PARSER_PORT(port->port_id), config0);
vip_set_data_interface(port, iface);
vip_set_crop_parser(port);
return 0;
}
static void vip_enable_parser(struct vip_port *port, bool on)
{
u32 config0;
struct vip_dev *dev = port->dev;
struct vip_parser_data *parser = dev->parser;
config0 = reg_read(parser, VIP_PARSER_PORT(port->port_id));
if (on) {
config0 |= VIP_PORT_ENABLE;
config0 &= ~(VIP_ASYNC_FIFO_RD | VIP_ASYNC_FIFO_WR);
} else {
config0 &= ~VIP_PORT_ENABLE;
config0 |= (VIP_ASYNC_FIFO_RD | VIP_ASYNC_FIFO_WR);
}
reg_write(parser, VIP_PARSER_PORT(port->port_id), config0);
}
static void vip_reset_parser(struct vip_port *port, bool on)
{
u32 config0;
struct vip_dev *dev = port->dev;
struct vip_parser_data *parser = dev->parser;
config0 = reg_read(parser, VIP_PARSER_PORT(port->port_id));
if (on)
config0 |= VIP_SW_RESET;
else
config0 &= ~VIP_SW_RESET;
reg_write(parser, VIP_PARSER_PORT(port->port_id), config0);
}
static void vip_parser_stop_imm(struct vip_port *port, bool on)
{
u32 config0;
struct vip_dev *dev = port->dev;
struct vip_parser_data *parser = dev->parser;
config0 = reg_read(parser, VIP_PARSER_STOP_IMM_PORT(port->port_id));
if (on)
config0 = 0xffffffff;
else
config0 = 0;
reg_write(parser, VIP_PARSER_STOP_IMM_PORT(port->port_id), config0);
}
static void vip_release_stream(struct vip_stream *stream)
{
struct vip_dev *dev = stream->port->dev;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: stream instance %pa\n",
__func__, &stream);
vpdma_unmap_desc_buf(dev->shared->vpdma, &stream->desc_list.buf);
vpdma_free_desc_buf(&stream->desc_list.buf);
vpdma_free_desc_list(&stream->desc_list);
}
static void vip_release_port(struct vip_port *port)
{
struct vip_dev *dev = port->dev;
v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: port instance %pa\n",
__func__, &port);
vpdma_free_desc_buf(&port->mmr_adb);
vpdma_free_desc_buf(&port->sc_coeff_h);
vpdma_free_desc_buf(&port->sc_coeff_v);
}
static void stop_dma(struct vip_stream *stream, bool clear_list)
{
struct vip_dev *dev = stream->port->dev;
int ch, size = 0;
/* Create a list of channels to be cleared */
for (ch = 0; ch < VPDMA_MAX_CHANNELS; ch++) {
if (stream->vpdma_channels[ch] == 1) {
stream->vpdma_channels_to_abort[size++] = ch;
v4l2_dbg(2, debug, &dev->v4l2_dev, "Clear channel no: %d\n", ch);
}
}
/* Clear all the used channels for the list */
vpdma_list_cleanup(dev->shared->vpdma, stream->list_num,
stream->vpdma_channels_to_abort, size);
if (clear_list)
for (ch = 0; ch < VPDMA_MAX_CHANNELS; ch++)
stream->vpdma_channels[ch] = 0;
}
static int vip_open(struct file *file)
{
struct vip_stream *stream = video_drvdata(file);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
int ret = 0;
mutex_lock(&dev->mutex);
ret = v4l2_fh_open(file);
if (ret) {
v4l2_err(&dev->v4l2_dev, "v4l2_fh_open failed\n");
goto unlock;
}
/*
* If this is the first open file.
* Then initialize hw module.
*/
if (!v4l2_fh_is_singular_file(file))
goto unlock;
if (vip_init_stream(stream))
ret = -ENODEV;
unlock:
mutex_unlock(&dev->mutex);
return ret;
}
static int vip_release(struct file *file)
{
struct vip_stream *stream = video_drvdata(file);
struct vip_port *port = stream->port;
struct vip_dev *dev = port->dev;
bool fh_singular;
int ret;
mutex_lock(&dev->mutex);
/* Save the singular status before we call the clean-up helper */
fh_singular = v4l2_fh_is_singular_file(file);
/* the release helper will cleanup any on-going streaming */
ret = _vb2_fop_release(file, NULL);
free_csc(port);
free_scaler(port);
/*
* If this is the last open file.
* Then de-initialize hw module.
*/
if (fh_singular) {
vip_release_stream(stream);
if (--port->num_streams == 0) {
vip_release_port(port);
vip_release_dev(port->dev);
}
}
mutex_unlock(&dev->mutex);
return ret;
}
/*
* File operations
*/
static const struct v4l2_file_operations vip_fops = {
.owner = THIS_MODULE,
.open = vip_open,
.release = vip_release,
.poll = vb2_fop_poll,
.unlocked_ioctl = video_ioctl2,
.mmap = vb2_fop_mmap,
};
static struct video_device vip_videodev = {
.name = VIP_MODULE_NAME,
.fops = &vip_fops,
.ioctl_ops = &vip_ioctl_ops,
.minor = -1,
.release = video_device_release,
.tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
.device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE,
};
static int alloc_stream(struct vip_port *port, int stream_id, int vfl_type)
{
struct vip_stream *stream;
struct vip_dev *dev = port->dev;
struct vb2_queue *q;
struct video_device *vfd;
struct vip_buffer *buf;
struct list_head *pos, *tmp;
int ret, i;
stream = kzalloc_obj(*stream);
if (!stream)
return -ENOMEM;
stream->port = port;
stream->stream_id = stream_id;
stream->vfl_type = vfl_type;
port->cap_streams[stream_id] = stream;
stream->list_num = vpdma_hwlist_alloc(dev->shared->vpdma, stream);
if (stream->list_num < 0) {
v4l2_err(&dev->v4l2_dev, "Could not get VPDMA hwlist");
ret = -ENODEV;
goto do_free_stream;
}
INIT_LIST_HEAD(&stream->post_bufs);
/*
* Initialize queue
*/
q = &stream->vb_vidq;
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_MMAP | VB2_DMABUF;
q->drv_priv = stream;
q->buf_struct_size = sizeof(struct vip_buffer);
q->ops = &vip_video_qops;
q->mem_ops = &vb2_dma_contig_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &dev->mutex;
q->min_queued_buffers = 2;
q->dev = dev->v4l2_dev.dev;
ret = vb2_queue_init(q);
if (ret)
goto do_free_hwlist;
INIT_WORK(&stream->recovery_work, vip_overflow_recovery_work);
INIT_LIST_HEAD(&stream->vidq);
/* Allocate/populate Drop queue entries */
INIT_LIST_HEAD(&stream->dropq);
for (i = 0; i < VIP_DROPQ_SIZE; i++) {
buf = kzalloc_obj(*buf, GFP_ATOMIC);
if (!buf) {
ret = -ENOMEM;
goto do_free_dropq;
}
buf->drop = true;
list_add(&buf->list, &stream->dropq);
}
vfd = video_device_alloc();
if (!vfd) {
ret = -ENOMEM;
goto do_free_dropq;
}
*vfd = vip_videodev;
vfd->v4l2_dev = &dev->v4l2_dev;
vfd->queue = q;
vfd->lock = &dev->mutex;
video_set_drvdata(vfd, stream);
stream->vfd = vfd;
ret = video_register_device(vfd, vfl_type, -1);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
goto do_free_vfd;
}
v4l2_info(&dev->v4l2_dev, "device registered as %s\n",
video_device_node_name(vfd));
return 0;
do_free_vfd:
video_device_release(vfd);
do_free_dropq:
list_for_each_safe(pos, tmp, &stream->dropq) {
buf = list_entry(pos,
struct vip_buffer, list);
v4l2_dbg(1, debug, &dev->v4l2_dev, "dropq buffer\n");
list_del(pos);
kfree(buf);
}
do_free_hwlist:
vpdma_hwlist_release(dev->shared->vpdma, stream->list_num);
do_free_stream:
kfree(stream);
return ret;
}
static void free_stream(struct vip_stream *stream)
{
struct vip_dev *dev;
struct vip_buffer *buf;
struct list_head *pos, *q;
if (!stream)
return;
dev = stream->port->dev;
/* Free up the Drop queue */
list_for_each_safe(pos, q, &stream->dropq) {
buf = list_entry(pos,
struct vip_buffer, list);
v4l2_dbg(1, debug, &dev->v4l2_dev, "dropq buffer\n");
list_del(pos);
kfree(buf);
}
video_unregister_device(stream->vfd);
vpdma_hwlist_release(dev->shared->vpdma, stream->list_num);
stream->port->cap_streams[stream->stream_id] = NULL;
kfree(stream);
}
static int get_subdev_active_format(struct vip_port *port,
struct v4l2_subdev *subdev)
{
struct vip_fmt *fmt;
struct vip_dev *dev = port->dev;
struct v4l2_subdev_mbus_code_enum mbus_code;
int ret = 0;
unsigned int k, i, j;
enum vip_csc_state csc;
/* Enumerate sub device formats and enable all matching local formats */
port->num_active_fmt = 0;
for (k = 0, i = 0; (ret != -EINVAL); k++) {
memset(&mbus_code, 0, sizeof(mbus_code));
mbus_code.index = k;
mbus_code.which = V4L2_SUBDEV_FORMAT_ACTIVE;
ret = v4l2_subdev_call(subdev, pad, enum_mbus_code,
NULL, &mbus_code);
if (ret)
continue;
v4l2_dbg(2, debug, &dev->v4l2_dev,
"subdev %s: code: %04x idx: %d\n",
subdev->name, mbus_code.code, k);
for (j = 0; j < ARRAY_SIZE(vip_formats); j++) {
fmt = &vip_formats[j];
if (mbus_code.code != fmt->code)
continue;
/*
* When the port is configured for BT656
* then none of the downstream unit can be used.
* So here we need to skip all format requiring
* either CSC or CHR_DS
*/
csc = vip_csc_direction(fmt->code, fmt->finfo);
if (port->endpoint.bus_type == V4L2_MBUS_BT656 &&
(csc != VIP_CSC_NA || fmt->coplanar))
continue;
port->active_fmt[i] = fmt;
v4l2_dbg(2, debug, &dev->v4l2_dev,
"matched fourcc: %s: code: %04x idx: %d\n",
fourcc_to_str(fmt->fourcc), fmt->code, i);
port->num_active_fmt = ++i;
}
}
if (i == 0) {
v4l2_err(&dev->v4l2_dev, "No suitable format reported by subdev %s\n",
subdev->name);
return -EINVAL;
}
return 0;
}
static int alloc_port(struct vip_dev *dev, int id)
{
struct vip_port *port;
if (dev->ports[id])
return -EINVAL;
port = devm_kzalloc(&dev->pdev->dev, sizeof(*port), GFP_KERNEL);
if (!port)
return -ENOMEM;
dev->ports[id] = port;
port->dev = dev;
port->port_id = id;
port->num_streams = 0;
return 0;
}
static void free_port(struct vip_port *port)
{
if (!port)
return;
v4l2_async_nf_unregister(&port->notifier);
v4l2_async_nf_cleanup(&port->notifier);
free_stream(port->cap_streams[0]);
}
static int get_field(u32 value, u32 mask, int shift)
{
return (value & (mask << shift)) >> shift;
}
static int vip_probe_complete(struct platform_device *pdev);
static void vip_vpdma_fw_cb(struct platform_device *pdev)
{
dev_info(&pdev->dev, "VPDMA firmware loaded\n");
if (pdev->dev.of_node)
vip_probe_complete(pdev);
}
static int vip_create_streams(struct vip_port *port,
struct v4l2_subdev *subdev)
{
int i;
for (i = 0; i < VIP_CAP_STREAMS_PER_PORT; i++)
free_stream(port->cap_streams[i]);
if (get_subdev_active_format(port, subdev))
return -ENODEV;
port->subdev = subdev;
if (port->endpoint.bus_type == V4L2_MBUS_PARALLEL) {
port->flags |= FLAG_MULT_PORT;
port->num_streams_configured = 1;
alloc_stream(port, 0, VFL_TYPE_VIDEO);
} else if (port->endpoint.bus_type == V4L2_MBUS_BT656) {
port->flags |= FLAG_MULT_PORT;
port->num_streams_configured = 1;
alloc_stream(port, 0, VFL_TYPE_VIDEO);
}
return 0;
}
static int vip_async_bound(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *subdev,
struct v4l2_async_connection *asd)
{
struct vip_port *port = notifier_to_vip_port(notifier);
int ret;
if (port->subdev) {
v4l2_info(&port->dev->v4l2_dev, "Rejecting subdev %s (Already set!!)",
subdev->name);
return 0;
}
v4l2_info(&port->dev->v4l2_dev, "Port %c: Using subdev %s for capture\n",
port->port_id == VIP_PORTA ? 'A' : 'B', subdev->name);
ret = vip_create_streams(port, subdev);
if (ret)
return ret;
return 0;
}
static int vip_async_complete(struct v4l2_async_notifier *notifier)
{
return 0;
}
static const struct v4l2_async_notifier_operations vip_async_ops = {
.bound = vip_async_bound,
.complete = vip_async_complete,
};
static struct fwnode_handle *
fwnode_graph_get_next_endpoint_by_regs(const struct fwnode_handle *fwnode,
int port_reg, int reg)
{
return of_fwnode_handle(of_graph_get_endpoint_by_regs(to_of_node(fwnode),
port_reg, reg));
}
static int vip_register_subdev_notify(struct vip_port *port,
struct fwnode_handle *ep)
{
struct v4l2_async_notifier *notifier = &port->notifier;
struct fwnode_handle *subdev;
struct v4l2_fwnode_endpoint *vep;
struct v4l2_async_connection *asd;
int ret;
struct vip_dev *dev = port->dev;
vep = &port->endpoint;
subdev = fwnode_graph_get_remote_port_parent(ep);
if (!subdev) {
v4l2_dbg(3, debug, &dev->v4l2_dev, "can't get remote parent\n");
return -EINVAL;
}
ret = v4l2_fwnode_endpoint_parse(ep, vep);
if (ret) {
v4l2_dbg(3, debug, &dev->v4l2_dev, "Failed to parse endpoint:\n");
fwnode_handle_put(subdev);
return -EINVAL;
}
v4l2_async_nf_init(notifier, &port->dev->shared->v4l2_dev);
asd = v4l2_async_nf_add_fwnode(notifier, subdev, struct v4l2_async_connection);
if (IS_ERR(asd)) {
v4l2_dbg(1, debug, &dev->v4l2_dev, "Error adding asd\n");
fwnode_handle_put(subdev);
v4l2_async_nf_cleanup(notifier);
return -EINVAL;
}
notifier->ops = &vip_async_ops;
ret = v4l2_async_nf_register(notifier);
if (ret) {
v4l2_dbg(1, debug, &dev->v4l2_dev, "Error registering async notifier\n");
v4l2_async_nf_cleanup(notifier);
ret = -EINVAL;
}
return ret;
}
static int vip_endpoint_scan(struct platform_device *pdev)
{
struct device_node *parent = pdev->dev.of_node;
struct device_node *ep = NULL;
int count = 0, p;
for (p = 0; p < (VIP_NUM_PORTS * VIP_NUM_SLICES); p++) {
ep = of_graph_get_endpoint_by_regs(parent, p, 0);
if (!ep)
continue;
count++;
of_node_put(ep);
}
return count;
}
static int vip_probe_complete(struct platform_device *pdev)
{
struct vip_shared *shared = platform_get_drvdata(pdev);
struct vip_ctrl_module *ctrl = NULL;
struct vip_port *port;
struct vip_dev *dev;
struct device_node *parent = pdev->dev.of_node;
struct fwnode_handle *ep = NULL;
unsigned int syscon_args[5];
int ret, i, slice_id, port_id, p;
/* Allocate ctrl before using it */
ctrl = devm_kzalloc(&pdev->dev, sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
return -ENOMEM;
ctrl->syscon_pol = syscon_regmap_lookup_by_phandle_args(parent, "ti,ctrl-module",
5, syscon_args);
if (IS_ERR(ctrl->syscon_pol))
return dev_err_probe(&pdev->dev, PTR_ERR(ctrl->syscon_pol),
"Failed to get ti,ctrl-module\n");
ctrl->syscon_offset = syscon_args[0];
for (i = 0; i < ARRAY_SIZE(ctrl->syscon_bit_field); i++)
ctrl->syscon_bit_field[i] = syscon_args[i + 1];
for (p = 0; p < (VIP_NUM_PORTS * VIP_NUM_SLICES); p++) {
ep = fwnode_graph_get_next_endpoint_by_regs(of_fwnode_handle(parent),
p, 0);
if (!ep)
continue;
switch (p) {
case 0:
slice_id = VIP_SLICE1;
port_id = VIP_PORTA;
break;
case 1:
slice_id = VIP_SLICE2;
port_id = VIP_PORTA;
break;
case 2:
slice_id = VIP_SLICE1;
port_id = VIP_PORTB;
break;
case 3:
slice_id = VIP_SLICE2;
port_id = VIP_PORTB;
break;
default:
dev_err(&pdev->dev, "Unknown port reg=<%d>\n", p);
continue;
}
ret = alloc_port(shared->devs[slice_id], port_id);
if (ret < 0)
continue;
dev = shared->devs[slice_id];
dev->syscon = ctrl;
port = dev->ports[port_id];
vip_register_subdev_notify(port, ep);
fwnode_handle_put(ep);
}
return 0;
}
static int vip_probe_slice(struct platform_device *pdev, int slice)
{
struct vip_shared *shared = platform_get_drvdata(pdev);
struct vip_dev *dev;
struct vip_parser_data *parser;
struct sc_data *sc;
struct csc_data *csc;
int ret;
dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
if (!dev)
return -ENOMEM;
dev->irq = platform_get_irq(pdev, slice);
if (dev->irq < 0)
return dev->irq;
ret = devm_request_irq(&pdev->dev, dev->irq, vip_irq,
0, VIP_MODULE_NAME, dev);
if (ret < 0)
return -ENOMEM;
spin_lock_init(&dev->slock);
mutex_init(&dev->mutex);
dev->slice_id = slice;
dev->pdev = pdev;
dev->base = shared->base;
dev->v4l2_dev = shared->v4l2_dev;
dev->shared = shared;
shared->devs[slice] = dev;
vip_top_reset(dev);
vip_set_slice_path(dev, VIP_MULTI_CHANNEL_DATA_SELECT, 1);
parser = devm_kzalloc(&pdev->dev, sizeof(*dev->parser), GFP_KERNEL);
if (!parser)
return PTR_ERR_OR_ZERO(parser);
parser->base = dev->base + (slice ? VIP_SLICE1_PARSER : VIP_SLICE0_PARSER);
if (IS_ERR(parser->base))
return PTR_ERR(parser->base);
parser->pdev = pdev;
dev->parser = parser;
dev->sc_assigned = VIP_NOT_ASSIGNED;
sc = devm_kzalloc(&pdev->dev, sizeof(*dev->sc), GFP_KERNEL);
if (!sc)
return PTR_ERR_OR_ZERO(sc);
sc->base = dev->base + (slice ? VIP_SLICE1_SC : VIP_SLICE0_SC);
if (IS_ERR(sc->base))
return PTR_ERR(sc->base);
sc->pdev = pdev;
dev->sc = sc;
dev->csc_assigned = VIP_NOT_ASSIGNED;
csc = devm_kzalloc(&pdev->dev, sizeof(*dev->csc), GFP_KERNEL);
if (!csc)
return PTR_ERR_OR_ZERO(csc);
csc->base = dev->base + (slice ? VIP_SLICE1_CSC : VIP_SLICE0_CSC);
if (IS_ERR(csc->base))
return PTR_ERR(csc->base);
csc->pdev = pdev;
dev->csc = csc;
return 0;
}
static int vip_probe(struct platform_device *pdev)
{
struct vip_shared *shared;
int ret, slice = VIP_SLICE1;
u32 tmp, pid;
/* If there are no endpoint defined there is nothing to do */
if (!vip_endpoint_scan(pdev)) {
dev_err(&pdev->dev, "%s: No sensor", __func__);
return -ENODEV;
}
ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (ret) {
dev_err(&pdev->dev,
"32-bit consistent DMA enable failed\n");
return ret;
}
shared = devm_kzalloc(&pdev->dev, sizeof(*shared), GFP_KERNEL);
if (!shared)
return -ENOMEM;
shared->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(shared->base))
return PTR_ERR(shared->base);
vip_init_format_info(&pdev->dev);
pm_runtime_enable(&pdev->dev);
ret = pm_runtime_get_sync(&pdev->dev);
if (ret < 0)
goto err_runtime_disable;
/* Make sure H/W module has the right functionality */
pid = reg_read(shared, VIP_PID);
tmp = get_field(pid, VIP_PID_FUNC_MASK, VIP_PID_FUNC_SHIFT);
if (tmp != VIP_PID_FUNC) {
dev_info(&pdev->dev, "vip: unexpected PID function: 0x%x\n",
tmp);
ret = -ENODEV;
goto err_runtime_put;
}
ret = v4l2_device_register(&pdev->dev, &shared->v4l2_dev);
if (ret)
goto err_runtime_put;
/* enable clocks, so the firmware will load properly */
vip_shared_set_clock_enable(shared, 1);
vip_top_vpdma_reset(shared);
platform_set_drvdata(pdev, shared);
v4l2_ctrl_handler_init(&shared->ctrl_handler, 11);
shared->v4l2_dev.ctrl_handler = &shared->ctrl_handler;
for (slice = VIP_SLICE1; slice < VIP_NUM_SLICES; slice++) {
ret = vip_probe_slice(pdev, slice);
if (ret) {
dev_err(&pdev->dev, "Creating slice failed");
goto err_dev_unreg;
}
}
shared->vpdma = &shared->vpdma_data;
shared->vpdma->pdev = pdev;
shared->vpdma->cb = vip_vpdma_fw_cb;
spin_lock_init(&shared->vpdma->lock);
shared->vpdma->base = shared->base + VIP_VPDMA_BASE;
if (!shared->vpdma->base) {
dev_err(&pdev->dev, "failed to ioremap\n");
ret = -ENOMEM;
goto err_dev_unreg;
}
ret = vpdma_load_firmware(shared->vpdma);
if (ret) {
dev_err(&pdev->dev, "Creating VPDMA failed");
goto err_dev_unreg;
}
return 0;
err_dev_unreg:
v4l2_ctrl_handler_free(&shared->ctrl_handler);
v4l2_device_unregister(&shared->v4l2_dev);
err_runtime_put:
pm_runtime_put_sync(&pdev->dev);
err_runtime_disable:
pm_runtime_disable(&pdev->dev);
return ret;
}
static void vip_remove(struct platform_device *pdev)
{
struct vip_shared *shared = platform_get_drvdata(pdev);
struct vip_dev *dev;
int slice;
for (slice = 0; slice < VIP_NUM_SLICES; slice++) {
dev = shared->devs[slice];
if (!dev)
continue;
free_port(dev->ports[VIP_PORTA]);
free_port(dev->ports[VIP_PORTB]);
}
v4l2_ctrl_handler_free(&shared->ctrl_handler);
v4l2_device_unregister(&shared->v4l2_dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
}
#if defined(CONFIG_OF)
static const struct of_device_id vip_of_match[] = {
{
.compatible = "ti,dra7-vip",
},
{},
};
MODULE_DEVICE_TABLE(of, vip_of_match);
#endif
static struct platform_driver vip_pdrv = {
.probe = vip_probe,
.remove = vip_remove,
.driver = {
.name = VIP_MODULE_NAME,
.of_match_table = of_match_ptr(vip_of_match),
},
};
module_platform_driver(vip_pdrv);
MODULE_DESCRIPTION("TI VIP driver");
MODULE_AUTHOR("Texas Instruments");
MODULE_LICENSE("GPL");
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