// SPDX-License-Identifier: GPL-2.0-only
/*
* ispcsi2 . c
*
* TI OMAP3 ISP - CSI2 module
*
* Copyright ( C ) 2010 Nokia Corporation
* Copyright ( C ) 2009 Texas Instruments , Inc .
*
* Contacts : Laurent Pinchart < laurent . pinchart @ ideasonboard . com >
* Sakari Ailus < sakari . ailus @ iki . fi >
*/
#include <linux/delay.h>
#include <media/v4l2-common.h>
#include <linux/v4l2-mediabus.h>
#include <linux/mm.h>
#include "isp.h"
#include "ispreg.h"
#include "ispcsi2.h"
/*
* csi2_if_enable - Enable CSI2 Receiver interface .
* @ enable : enable flag
*
*/
static void csi2_if_enable(struct isp_device *isp,
struct isp_csi2_device *csi2, u8 enable)
{
struct isp_csi2_ctrl_cfg *currctrl = &csi2->ctrl;
isp_reg_clr_set(isp, csi2->regs1, ISPCSI2_CTRL, ISPCSI2_CTRL_IF_EN,
enable ? ISPCSI2_CTRL_IF_EN : 0 );
currctrl->if_enable = enable;
}
/*
* csi2_recv_config - CSI2 receiver module configuration .
* @ currctrl : isp_csi2_ctrl_cfg structure
*
*/
static void csi2_recv_config(struct isp_device *isp,
struct isp_csi2_device *csi2,
struct isp_csi2_ctrl_cfg *currctrl)
{
u32 reg;
reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTRL);
if (currctrl->frame_mode)
reg |= ISPCSI2_CTRL_FRAME;
else
reg &= ~ISPCSI2_CTRL_FRAME;
if (currctrl->vp_clk_enable)
reg |= ISPCSI2_CTRL_VP_CLK_EN;
else
reg &= ~ISPCSI2_CTRL_VP_CLK_EN;
if (currctrl->vp_only_enable)
reg |= ISPCSI2_CTRL_VP_ONLY_EN;
else
reg &= ~ISPCSI2_CTRL_VP_ONLY_EN;
reg &= ~ISPCSI2_CTRL_VP_OUT_CTRL_MASK;
reg |= currctrl->vp_out_ctrl << ISPCSI2_CTRL_VP_OUT_CTRL_SHIFT;
if (currctrl->ecc_enable)
reg |= ISPCSI2_CTRL_ECC_EN;
else
reg &= ~ISPCSI2_CTRL_ECC_EN;
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTRL);
}
static const unsigned int csi2_input_fmts[] = {
MEDIA_BUS_FMT_SGRBG10_1X10,
MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8,
MEDIA_BUS_FMT_SRGGB10_1X10,
MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8,
MEDIA_BUS_FMT_SBGGR10_1X10,
MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8,
MEDIA_BUS_FMT_SGBRG10_1X10,
MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8,
MEDIA_BUS_FMT_YUYV8_2X8,
};
/* To set the format on the CSI2 requires a mapping function that takes
* the following inputs :
* - 3 different formats ( at this time )
* - 2 destinations ( mem , vp + mem ) ( vp only handled separately )
* - 2 decompression options ( on , off )
* - 2 isp revisions ( certain format must be handled differently on OMAP3630 )
* Output should be CSI2 frame format code
* Array indices as follows : [ format ] [ dest ] [ decompr ] [ is_3630 ]
* Not all combinations are valid . 0 means invalid .
*/
static const u16 __csi2_fmt_map[3 ][2 ][2 ][2 ] = {
/* RAW10 formats */
{
/* Output to memory */
{
/* No DPCM decompression */
{ CSI2_PIX_FMT_RAW10_EXP16, CSI2_PIX_FMT_RAW10_EXP16 },
/* DPCM decompression */
{ 0 , 0 },
},
/* Output to both */
{
/* No DPCM decompression */
{ CSI2_PIX_FMT_RAW10_EXP16_VP,
CSI2_PIX_FMT_RAW10_EXP16_VP },
/* DPCM decompression */
{ 0 , 0 },
},
},
/* RAW10 DPCM8 formats */
{
/* Output to memory */
{
/* No DPCM decompression */
{ CSI2_PIX_FMT_RAW8, CSI2_USERDEF_8BIT_DATA1 },
/* DPCM decompression */
{ CSI2_PIX_FMT_RAW8_DPCM10_EXP16,
CSI2_USERDEF_8BIT_DATA1_DPCM10 },
},
/* Output to both */
{
/* No DPCM decompression */
{ CSI2_PIX_FMT_RAW8_VP,
CSI2_PIX_FMT_RAW8_VP },
/* DPCM decompression */
{ CSI2_PIX_FMT_RAW8_DPCM10_VP,
CSI2_USERDEF_8BIT_DATA1_DPCM10_VP },
},
},
/* YUYV8 2X8 formats */
{
/* Output to memory */
{
/* No DPCM decompression */
{ CSI2_PIX_FMT_YUV422_8BIT,
CSI2_PIX_FMT_YUV422_8BIT },
/* DPCM decompression */
{ 0 , 0 },
},
/* Output to both */
{
/* No DPCM decompression */
{ CSI2_PIX_FMT_YUV422_8BIT_VP,
CSI2_PIX_FMT_YUV422_8BIT_VP },
/* DPCM decompression */
{ 0 , 0 },
},
},
};
/*
* csi2_ctx_map_format - Map CSI2 sink media bus format to CSI2 format ID
* @ csi2 : ISP CSI2 device
*
* Returns CSI2 physical format id
*/
static u16 csi2_ctx_map_format(struct isp_csi2_device *csi2)
{
const struct v4l2_mbus_framefmt *fmt = &csi2->formats[CSI2_PAD_SINK];
int fmtidx, destidx, is_3630;
switch (fmt->code) {
case MEDIA_BUS_FMT_SGRBG10_1X10:
case MEDIA_BUS_FMT_SRGGB10_1X10:
case MEDIA_BUS_FMT_SBGGR10_1X10:
case MEDIA_BUS_FMT_SGBRG10_1X10:
fmtidx = 0 ;
break ;
case MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8:
case MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8:
case MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8:
case MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8:
fmtidx = 1 ;
break ;
case MEDIA_BUS_FMT_YUYV8_2X8:
fmtidx = 2 ;
break ;
default :
WARN(1 , KERN_ERR "CSI2: pixel format %08x unsupported!\n" ,
fmt->code);
return 0 ;
}
if (!(csi2->output & CSI2_OUTPUT_CCDC) &&
!(csi2->output & CSI2_OUTPUT_MEMORY)) {
/* Neither output enabled is a valid combination */
return CSI2_PIX_FMT_OTHERS;
}
/* If we need to skip frames at the beginning of the stream disable the
* video port to avoid sending the skipped frames to the CCDC .
*/
destidx = csi2->frame_skip ? 0 : !!(csi2->output & CSI2_OUTPUT_CCDC);
is_3630 = csi2->isp->revision == ISP_REVISION_15_0;
return __csi2_fmt_map[fmtidx][destidx][csi2->dpcm_decompress][is_3630];
}
/*
* csi2_set_outaddr - Set memory address to save output image
* @ csi2 : Pointer to ISP CSI2a device .
* @ addr : ISP MMU Mapped 32 - bit memory address aligned on 32 byte boundary .
*
* Sets the memory address where the output will be saved .
*
* Returns 0 if successful , or - EINVAL if the address is not in the 32 byte
* boundary .
*/
static void csi2_set_outaddr(struct isp_csi2_device *csi2, u32 addr)
{
struct isp_device *isp = csi2->isp;
struct isp_csi2_ctx_cfg *ctx = &csi2->contexts[0 ];
ctx->ping_addr = addr;
ctx->pong_addr = addr;
isp_reg_writel(isp, ctx->ping_addr,
csi2->regs1, ISPCSI2_CTX_DAT_PING_ADDR(ctx->ctxnum));
isp_reg_writel(isp, ctx->pong_addr,
csi2->regs1, ISPCSI2_CTX_DAT_PONG_ADDR(ctx->ctxnum));
}
/*
* is_usr_def_mapping - Checks whether USER_DEF_MAPPING should
* be enabled by CSI2 .
* @ format_id : mapped format id
*
*/
static inline int is_usr_def_mapping(u32 format_id)
{
return (format_id & 0 x40) ? 1 : 0 ;
}
/*
* csi2_ctx_enable - Enable specified CSI2 context
* @ ctxnum : Context number , valid between 0 and 7 values .
* @ enable : enable
*
*/
static void csi2_ctx_enable(struct isp_device *isp,
struct isp_csi2_device *csi2, u8 ctxnum, u8 enable)
{
struct isp_csi2_ctx_cfg *ctx = &csi2->contexts[ctxnum];
unsigned int skip = 0 ;
u32 reg;
reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL1(ctxnum));
if (enable) {
if (csi2->frame_skip)
skip = csi2->frame_skip;
else if (csi2->output & CSI2_OUTPUT_MEMORY)
skip = 1 ;
reg &= ~ISPCSI2_CTX_CTRL1_COUNT_MASK;
reg |= ISPCSI2_CTX_CTRL1_COUNT_UNLOCK
| (skip << ISPCSI2_CTX_CTRL1_COUNT_SHIFT)
| ISPCSI2_CTX_CTRL1_CTX_EN;
} else {
reg &= ~ISPCSI2_CTX_CTRL1_CTX_EN;
}
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL1(ctxnum));
ctx->enabled = enable;
}
/*
* csi2_ctx_config - CSI2 context configuration .
* @ ctx : context configuration
*
*/
static void csi2_ctx_config(struct isp_device *isp,
struct isp_csi2_device *csi2,
struct isp_csi2_ctx_cfg *ctx)
{
u32 reg;
/* Set up CSI2_CTx_CTRL1 */
reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL1(ctx->ctxnum));
if (ctx->eof_enabled)
reg |= ISPCSI2_CTX_CTRL1_EOF_EN;
else
reg &= ~ISPCSI2_CTX_CTRL1_EOF_EN;
if (ctx->eol_enabled)
reg |= ISPCSI2_CTX_CTRL1_EOL_EN;
else
reg &= ~ISPCSI2_CTX_CTRL1_EOL_EN;
if (ctx->checksum_enabled)
reg |= ISPCSI2_CTX_CTRL1_CS_EN;
else
reg &= ~ISPCSI2_CTX_CTRL1_CS_EN;
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL1(ctx->ctxnum));
/* Set up CSI2_CTx_CTRL2 */
reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL2(ctx->ctxnum));
reg &= ~(ISPCSI2_CTX_CTRL2_VIRTUAL_ID_MASK);
reg |= ctx->virtual_id << ISPCSI2_CTX_CTRL2_VIRTUAL_ID_SHIFT;
reg &= ~(ISPCSI2_CTX_CTRL2_FORMAT_MASK);
reg |= ctx->format_id << ISPCSI2_CTX_CTRL2_FORMAT_SHIFT;
if (ctx->dpcm_decompress) {
if (ctx->dpcm_predictor)
reg |= ISPCSI2_CTX_CTRL2_DPCM_PRED;
else
reg &= ~ISPCSI2_CTX_CTRL2_DPCM_PRED;
}
if (is_usr_def_mapping(ctx->format_id)) {
reg &= ~ISPCSI2_CTX_CTRL2_USER_DEF_MAP_MASK;
reg |= 2 << ISPCSI2_CTX_CTRL2_USER_DEF_MAP_SHIFT;
}
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL2(ctx->ctxnum));
/* Set up CSI2_CTx_CTRL3 */
reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL3(ctx->ctxnum));
reg &= ~(ISPCSI2_CTX_CTRL3_ALPHA_MASK);
reg |= (ctx->alpha << ISPCSI2_CTX_CTRL3_ALPHA_SHIFT);
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL3(ctx->ctxnum));
/* Set up CSI2_CTx_DAT_OFST */
reg = isp_reg_readl(isp, csi2->regs1,
ISPCSI2_CTX_DAT_OFST(ctx->ctxnum));
reg &= ~ISPCSI2_CTX_DAT_OFST_OFST_MASK;
reg |= ctx->data_offset << ISPCSI2_CTX_DAT_OFST_OFST_SHIFT;
isp_reg_writel(isp, reg, csi2->regs1,
ISPCSI2_CTX_DAT_OFST(ctx->ctxnum));
isp_reg_writel(isp, ctx->ping_addr,
csi2->regs1, ISPCSI2_CTX_DAT_PING_ADDR(ctx->ctxnum));
isp_reg_writel(isp, ctx->pong_addr,
csi2->regs1, ISPCSI2_CTX_DAT_PONG_ADDR(ctx->ctxnum));
}
/*
* csi2_timing_config - CSI2 timing configuration .
* @ timing : csi2_timing_cfg structure
*/
static void csi2_timing_config(struct isp_device *isp,
struct isp_csi2_device *csi2,
struct isp_csi2_timing_cfg *timing)
{
u32 reg;
reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_TIMING);
if (timing->force_rx_mode)
reg |= ISPCSI2_TIMING_FORCE_RX_MODE_IO(timing->ionum);
else
reg &= ~ISPCSI2_TIMING_FORCE_RX_MODE_IO(timing->ionum);
if (timing->stop_state_16x)
reg |= ISPCSI2_TIMING_STOP_STATE_X16_IO(timing->ionum);
else
reg &= ~ISPCSI2_TIMING_STOP_STATE_X16_IO(timing->ionum);
if (timing->stop_state_4x)
reg |= ISPCSI2_TIMING_STOP_STATE_X4_IO(timing->ionum);
else
reg &= ~ISPCSI2_TIMING_STOP_STATE_X4_IO(timing->ionum);
reg &= ~ISPCSI2_TIMING_STOP_STATE_COUNTER_IO_MASK(timing->ionum);
reg |= timing->stop_state_counter <<
ISPCSI2_TIMING_STOP_STATE_COUNTER_IO_SHIFT(timing->ionum);
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_TIMING);
}
/*
* csi2_irq_ctx_set - Enables CSI2 Context IRQs .
* @ enable : Enable / disable CSI2 Context interrupts
*/
static void csi2_irq_ctx_set(struct isp_device *isp,
struct isp_csi2_device *csi2, int enable)
{
int i;
for (i = 0 ; i < 8 ; i++) {
isp_reg_writel(isp, ISPCSI2_CTX_IRQSTATUS_FE_IRQ, csi2->regs1,
ISPCSI2_CTX_IRQSTATUS(i));
if (enable)
isp_reg_set(isp, csi2->regs1, ISPCSI2_CTX_IRQENABLE(i),
ISPCSI2_CTX_IRQSTATUS_FE_IRQ);
else
isp_reg_clr(isp, csi2->regs1, ISPCSI2_CTX_IRQENABLE(i),
ISPCSI2_CTX_IRQSTATUS_FE_IRQ);
}
}
/*
* csi2_irq_complexio1_set - Enables CSI2 ComplexIO IRQs .
* @ enable : Enable / disable CSI2 ComplexIO # 1 interrupts
*/
static void csi2_irq_complexio1_set(struct isp_device *isp,
struct isp_csi2_device *csi2, int enable)
{
u32 reg;
reg = ISPCSI2_PHY_IRQENABLE_STATEALLULPMEXIT |
ISPCSI2_PHY_IRQENABLE_STATEALLULPMENTER |
ISPCSI2_PHY_IRQENABLE_STATEULPM5 |
ISPCSI2_PHY_IRQENABLE_ERRCONTROL5 |
ISPCSI2_PHY_IRQENABLE_ERRESC5 |
ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS5 |
ISPCSI2_PHY_IRQENABLE_ERRSOTHS5 |
ISPCSI2_PHY_IRQENABLE_STATEULPM4 |
ISPCSI2_PHY_IRQENABLE_ERRCONTROL4 |
ISPCSI2_PHY_IRQENABLE_ERRESC4 |
ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS4 |
ISPCSI2_PHY_IRQENABLE_ERRSOTHS4 |
ISPCSI2_PHY_IRQENABLE_STATEULPM3 |
ISPCSI2_PHY_IRQENABLE_ERRCONTROL3 |
ISPCSI2_PHY_IRQENABLE_ERRESC3 |
ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS3 |
ISPCSI2_PHY_IRQENABLE_ERRSOTHS3 |
ISPCSI2_PHY_IRQENABLE_STATEULPM2 |
ISPCSI2_PHY_IRQENABLE_ERRCONTROL2 |
ISPCSI2_PHY_IRQENABLE_ERRESC2 |
ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS2 |
ISPCSI2_PHY_IRQENABLE_ERRSOTHS2 |
ISPCSI2_PHY_IRQENABLE_STATEULPM1 |
ISPCSI2_PHY_IRQENABLE_ERRCONTROL1 |
ISPCSI2_PHY_IRQENABLE_ERRESC1 |
ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS1 |
ISPCSI2_PHY_IRQENABLE_ERRSOTHS1;
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_PHY_IRQSTATUS);
if (enable)
reg |= isp_reg_readl(isp, csi2->regs1, ISPCSI2_PHY_IRQENABLE);
else
reg = 0 ;
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_PHY_IRQENABLE);
}
/*
* csi2_irq_status_set - Enables CSI2 Status IRQs .
* @ enable : Enable / disable CSI2 Status interrupts
*/
static void csi2_irq_status_set(struct isp_device *isp,
struct isp_csi2_device *csi2, int enable)
{
u32 reg;
reg = ISPCSI2_IRQSTATUS_OCP_ERR_IRQ |
ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ |
ISPCSI2_IRQSTATUS_ECC_CORRECTION_IRQ |
ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ |
ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ |
ISPCSI2_IRQSTATUS_COMPLEXIO1_ERR_IRQ |
ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ |
ISPCSI2_IRQSTATUS_CONTEXT(0 );
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_IRQSTATUS);
if (enable)
reg |= isp_reg_readl(isp, csi2->regs1, ISPCSI2_IRQENABLE);
else
reg = 0 ;
isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_IRQENABLE);
}
/*
* omap3isp_csi2_reset - Resets the CSI2 module .
*
* Must be called with the phy lock held .
*
* Returns 0 if successful , or - EBUSY if power command didn ' t respond .
*/
int omap3isp_csi2_reset(struct isp_csi2_device *csi2)
{
struct isp_device *isp = csi2->isp;
u8 soft_reset_retries = 0 ;
u32 reg;
int i;
if (!csi2->available)
return -ENODEV;
if (csi2->phy->entity)
return -EBUSY;
isp_reg_set(isp, csi2->regs1, ISPCSI2_SYSCONFIG,
ISPCSI2_SYSCONFIG_SOFT_RESET);
do {
reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_SYSSTATUS) &
ISPCSI2_SYSSTATUS_RESET_DONE;
if (reg == ISPCSI2_SYSSTATUS_RESET_DONE)
break ;
soft_reset_retries++;
if (soft_reset_retries < 5 )
udelay(100 );
} while (soft_reset_retries < 5 );
if (soft_reset_retries == 5 ) {
dev_err(isp->dev, "CSI2: Soft reset try count exceeded!\n" );
return -EBUSY;
}
if (isp->revision == ISP_REVISION_15_0)
isp_reg_set(isp, csi2->regs1, ISPCSI2_PHY_CFG,
ISPCSI2_PHY_CFG_RESET_CTRL);
i = 100 ;
do {
reg = isp_reg_readl(isp, csi2->phy->phy_regs, ISPCSIPHY_REG1)
& ISPCSIPHY_REG1_RESET_DONE_CTRLCLK;
if (reg == ISPCSIPHY_REG1_RESET_DONE_CTRLCLK)
break ;
udelay(100 );
} while (--i > 0 );
if (i == 0 ) {
dev_err(isp->dev,
"CSI2: Reset for CSI2_96M_FCLK domain Failed!\n" );
return -EBUSY;
}
if (isp->autoidle)
isp_reg_clr_set(isp, csi2->regs1, ISPCSI2_SYSCONFIG,
ISPCSI2_SYSCONFIG_MSTANDBY_MODE_MASK |
ISPCSI2_SYSCONFIG_AUTO_IDLE,
ISPCSI2_SYSCONFIG_MSTANDBY_MODE_SMART |
((isp->revision == ISP_REVISION_15_0) ?
ISPCSI2_SYSCONFIG_AUTO_IDLE : 0 ));
else
isp_reg_clr_set(isp, csi2->regs1, ISPCSI2_SYSCONFIG,
ISPCSI2_SYSCONFIG_MSTANDBY_MODE_MASK |
ISPCSI2_SYSCONFIG_AUTO_IDLE,
ISPCSI2_SYSCONFIG_MSTANDBY_MODE_NO);
return 0 ;
}
static int csi2_configure(struct isp_csi2_device *csi2)
{
struct isp_pipeline *pipe = to_isp_pipeline(&csi2->subdev.entity);
const struct isp_bus_cfg *buscfg;
struct isp_device *isp = csi2->isp;
struct isp_csi2_timing_cfg *timing = &csi2->timing[0 ];
struct v4l2_subdev *sensor;
struct media_pad *pad;
/*
* CSI2 fields that can be updated while the context has
* been enabled or the interface has been enabled are not
* updated dynamically currently . So we do not allow to
* reconfigure if either has been enabled
*/
if (csi2->contexts[0 ].enabled || csi2->ctrl.if_enable)
return -EBUSY;
pad = media_pad_remote_pad_first(&csi2->pads[CSI2_PAD_SINK]);
sensor = media_entity_to_v4l2_subdev(pad->entity);
buscfg = v4l2_subdev_to_bus_cfg(pipe->external);
if (WARN_ON(!buscfg))
return -EPIPE;
csi2->frame_skip = 0 ;
v4l2_subdev_call(sensor, sensor, g_skip_frames, &csi2->frame_skip);
csi2->ctrl.vp_out_ctrl =
clamp_t(unsigned int , pipe->l3_ick / pipe->external_rate - 1 ,
1 , 3 );
dev_dbg(isp->dev, "%s: l3_ick %lu, external_rate %u, vp_out_ctrl %u\n" ,
__func__, pipe->l3_ick, pipe->external_rate,
csi2->ctrl.vp_out_ctrl);
csi2->ctrl.frame_mode = ISP_CSI2_FRAME_IMMEDIATE;
csi2->ctrl.ecc_enable = buscfg->bus.csi2.crc;
timing->ionum = 1 ;
timing->force_rx_mode = 1 ;
timing->stop_state_16x = 1 ;
timing->stop_state_4x = 1 ;
timing->stop_state_counter = 0 x1FF;
/*
* The CSI2 receiver can ' t do any format conversion except DPCM
* decompression , so every set_format call configures both pads
* and enables DPCM decompression as a special case :
*/
if (csi2->formats[CSI2_PAD_SINK].code !=
csi2->formats[CSI2_PAD_SOURCE].code)
csi2->dpcm_decompress = true ;
else
csi2->dpcm_decompress = false ;
csi2->contexts[0 ].format_id = csi2_ctx_map_format(csi2);
if (csi2->video_out.bpl_padding == 0 )
csi2->contexts[0 ].data_offset = 0 ;
else
csi2->contexts[0 ].data_offset = csi2->video_out.bpl_value;
/*
* Enable end of frame and end of line signals generation for
* context 0 . These signals are generated from CSI2 receiver to
* qualify the last pixel of a frame and the last pixel of a line .
* Without enabling the signals CSI2 receiver writes data to memory
* beyond buffer size and / or data line offset is not handled correctly .
*/
csi2->contexts[0 ].eof_enabled = 1 ;
csi2->contexts[0 ].eol_enabled = 1 ;
csi2_irq_complexio1_set(isp, csi2, 1 );
csi2_irq_ctx_set(isp, csi2, 1 );
csi2_irq_status_set(isp, csi2, 1 );
/* Set configuration (timings, format and links) */
csi2_timing_config(isp, csi2, timing);
csi2_recv_config(isp, csi2, &csi2->ctrl);
csi2_ctx_config(isp, csi2, &csi2->contexts[0 ]);
return 0 ;
}
/*
* csi2_print_status - Prints CSI2 debug information .
*/
#define CSI2_PRINT_REGISTER(isp, regs, name)\
dev_dbg(isp->dev, "###CSI2 " #name "=0x%08x\n" , \
isp_reg_readl(isp, regs, ISPCSI2_## name))
static void csi2_print_status(struct isp_csi2_device *csi2)
{
struct isp_device *isp = csi2->isp;
if (!csi2->available)
return ;
dev_dbg(isp->dev, "-------------CSI2 Register dump-------------\n" );
CSI2_PRINT_REGISTER(isp, csi2->regs1, SYSCONFIG);
CSI2_PRINT_REGISTER(isp, csi2->regs1, SYSSTATUS);
CSI2_PRINT_REGISTER(isp, csi2->regs1, IRQENABLE);
CSI2_PRINT_REGISTER(isp, csi2->regs1, IRQSTATUS);
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTRL);
CSI2_PRINT_REGISTER(isp, csi2->regs1, DBG_H);
CSI2_PRINT_REGISTER(isp, csi2->regs1, GNQ);
CSI2_PRINT_REGISTER(isp, csi2->regs1, PHY_CFG);
CSI2_PRINT_REGISTER(isp, csi2->regs1, PHY_IRQSTATUS);
CSI2_PRINT_REGISTER(isp, csi2->regs1, SHORT_PACKET);
CSI2_PRINT_REGISTER(isp, csi2->regs1, PHY_IRQENABLE);
CSI2_PRINT_REGISTER(isp, csi2->regs1, DBG_P);
CSI2_PRINT_REGISTER(isp, csi2->regs1, TIMING);
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_CTRL1(0 ));
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_CTRL2(0 ));
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_DAT_OFST(0 ));
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_DAT_PING_ADDR(0 ));
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_DAT_PONG_ADDR(0 ));
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_IRQENABLE(0 ));
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_IRQSTATUS(0 ));
CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_CTRL3(0 ));
dev_dbg(isp->dev, "--------------------------------------------\n" );
}
/* -----------------------------------------------------------------------------
* Interrupt handling
*/
/*
* csi2_isr_buffer - Does buffer handling at end - of - frame
* when writing to memory .
*/
static void csi2_isr_buffer(struct isp_csi2_device *csi2)
{
struct isp_device *isp = csi2->isp;
struct isp_buffer *buffer;
csi2_ctx_enable(isp, csi2, 0 , 0 );
buffer = omap3isp_video_buffer_next(&csi2->video_out);
/*
* Let video queue operation restart engine if there is an underrun
* condition .
*/
if (buffer == NULL)
return ;
csi2_set_outaddr(csi2, buffer->dma);
csi2_ctx_enable(isp, csi2, 0 , 1 );
}
static void csi2_isr_ctx(struct isp_csi2_device *csi2,
struct isp_csi2_ctx_cfg *ctx)
{
struct isp_device *isp = csi2->isp;
unsigned int n = ctx->ctxnum;
u32 status;
status = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_IRQSTATUS(n));
isp_reg_writel(isp, status, csi2->regs1, ISPCSI2_CTX_IRQSTATUS(n));
if (!(status & ISPCSI2_CTX_IRQSTATUS_FE_IRQ))
return ;
/* Skip interrupts until we reach the frame skip count. The CSI2 will be
* automatically disabled , as the frame skip count has been programmed
* in the CSI2_CTx_CTRL1 : : COUNT field , so re - enable it .
*
* It would have been nice to rely on the FRAME_NUMBER interrupt instead
* but it turned out that the interrupt is only generated when the CSI2
* writes to memory ( the CSI2_CTx_CTRL1 : : COUNT field is decreased
* correctly and reaches 0 when data is forwarded to the video port only
* but no interrupt arrives ) . Maybe a CSI2 hardware bug .
*/
if (csi2->frame_skip) {
csi2->frame_skip--;
if (csi2->frame_skip == 0 ) {
ctx->format_id = csi2_ctx_map_format(csi2);
csi2_ctx_config(isp, csi2, ctx);
csi2_ctx_enable(isp, csi2, n, 1 );
}
return ;
}
if (csi2->output & CSI2_OUTPUT_MEMORY)
csi2_isr_buffer(csi2);
}
/*
* omap3isp_csi2_isr - CSI2 interrupt handling .
*/
void omap3isp_csi2_isr(struct isp_csi2_device *csi2)
{
struct isp_pipeline *pipe = to_isp_pipeline(&csi2->subdev.entity);
u32 csi2_irqstatus, cpxio1_irqstatus;
struct isp_device *isp = csi2->isp;
if (!csi2->available)
return ;
csi2_irqstatus = isp_reg_readl(isp, csi2->regs1, ISPCSI2_IRQSTATUS);
isp_reg_writel(isp, csi2_irqstatus, csi2->regs1, ISPCSI2_IRQSTATUS);
/* Failure Cases */
if (csi2_irqstatus & ISPCSI2_IRQSTATUS_COMPLEXIO1_ERR_IRQ) {
cpxio1_irqstatus = isp_reg_readl(isp, csi2->regs1,
ISPCSI2_PHY_IRQSTATUS);
isp_reg_writel(isp, cpxio1_irqstatus,
csi2->regs1, ISPCSI2_PHY_IRQSTATUS);
dev_dbg(isp->dev, "CSI2: ComplexIO Error IRQ %x\n" ,
cpxio1_irqstatus);
pipe->error = true ;
}
if (csi2_irqstatus & (ISPCSI2_IRQSTATUS_OCP_ERR_IRQ |
ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ |
ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ |
ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ |
ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ)) {
dev_dbg(isp->dev,
"CSI2 Err: OCP:%d, Short_pack:%d, ECC:%d, CPXIO2:%d, FIFO_OVF:%d,\n" ,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_OCP_ERR_IRQ) ? 1 : 0 ,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ) ? 1 : 0 ,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ) ? 1 : 0 ,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ) ? 1 : 0 ,
(csi2_irqstatus &
ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ) ? 1 : 0 );
pipe->error = true ;
}
if (omap3isp_module_sync_is_stopping(&csi2->wait, &csi2->stopping))
return ;
/* Successful cases */
if (csi2_irqstatus & ISPCSI2_IRQSTATUS_CONTEXT(0 ))
csi2_isr_ctx(csi2, &csi2->contexts[0 ]);
if (csi2_irqstatus & ISPCSI2_IRQSTATUS_ECC_CORRECTION_IRQ)
dev_dbg(isp->dev, "CSI2: ECC correction done\n" );
}
/* -----------------------------------------------------------------------------
* ISP video operations
*/
/*
* csi2_queue - Queues the first buffer when using memory output
* @ video : The video node
* @ buffer : buffer to queue
*/
static int csi2_queue(struct isp_video *video, struct isp_buffer *buffer)
{
struct isp_device *isp = video->isp;
struct isp_csi2_device *csi2 = &isp->isp_csi2a;
csi2_set_outaddr(csi2, buffer->dma);
/*
* If streaming was enabled before there was a buffer queued
* or underrun happened in the ISR , the hardware was not enabled
* and DMA queue flag ISP_VIDEO_DMAQUEUE_UNDERRUN is still set .
* Enable it now .
*/
if (csi2->video_out.dmaqueue_flags & ISP_VIDEO_DMAQUEUE_UNDERRUN) {
/* Enable / disable context 0 and IRQs */
csi2_if_enable(isp, csi2, 1 );
csi2_ctx_enable(isp, csi2, 0 , 1 );
isp_video_dmaqueue_flags_clr(&csi2->video_out);
}
return 0 ;
}
static const struct isp_video_operations csi2_ispvideo_ops = {
.queue = csi2_queue,
};
/* -----------------------------------------------------------------------------
* V4L2 subdev operations
*/
static struct v4l2_mbus_framefmt *
__csi2_get_format(struct isp_csi2_device *csi2,
struct v4l2_subdev_state *sd_state,
unsigned int pad, enum v4l2_subdev_format_whence which)
{
if (which == V4L2_SUBDEV_FORMAT_TRY)
return v4l2_subdev_state_get_format(sd_state, pad);
else
return &csi2->formats[pad];
}
static void
csi2_try_format(struct isp_csi2_device *csi2,
struct v4l2_subdev_state *sd_state,
unsigned int pad, struct v4l2_mbus_framefmt *fmt,
enum v4l2_subdev_format_whence which)
{
u32 pixelcode;
struct v4l2_mbus_framefmt *format;
const struct isp_format_info *info;
unsigned int i;
switch (pad) {
case CSI2_PAD_SINK:
/* Clamp the width and height to valid range (1-8191). */
for (i = 0 ; i < ARRAY_SIZE(csi2_input_fmts); i++) {
if (fmt->code == csi2_input_fmts[i])
break ;
}
/* If not found, use SGRBG10 as default */
if (i >= ARRAY_SIZE(csi2_input_fmts))
fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
fmt->width = clamp_t(u32, fmt->width, 1 , 8191 );
fmt->height = clamp_t(u32, fmt->height, 1 , 8191 );
break ;
case CSI2_PAD_SOURCE:
/* Source format same as sink format, except for DPCM
* compression .
*/
pixelcode = fmt->code;
format = __csi2_get_format(csi2, sd_state, CSI2_PAD_SINK,
which);
memcpy(fmt, format, sizeof (*fmt));
/*
* Only Allow DPCM decompression , and check that the
* pattern is preserved
*/
info = omap3isp_video_format_info(fmt->code);
if (info->uncompressed == pixelcode)
fmt->code = pixelcode;
break ;
}
/* RGB, non-interlaced */
fmt->colorspace = V4L2_COLORSPACE_SRGB;
fmt->field = V4L2_FIELD_NONE;
}
/*
* csi2_enum_mbus_code - Handle pixel format enumeration
* @ sd : pointer to v4l2 subdev structure
* @ sd_state : V4L2 subdev state
* @ code : pointer to v4l2_subdev_mbus_code_enum structure
* return - EINVAL or zero on success
*/
static int csi2_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
const struct isp_format_info *info;
if (code->pad == CSI2_PAD_SINK) {
if (code->index >= ARRAY_SIZE(csi2_input_fmts))
return -EINVAL;
code->code = csi2_input_fmts[code->index];
} else {
format = __csi2_get_format(csi2, sd_state, CSI2_PAD_SINK,
code->which);
switch (code->index) {
case 0 :
/* Passthrough sink pad code */
code->code = format->code;
break ;
case 1 :
/* Uncompressed code */
info = omap3isp_video_format_info(format->code);
if (info->uncompressed == format->code)
return -EINVAL;
code->code = info->uncompressed;
break ;
default :
return -EINVAL;
}
}
return 0 ;
}
static int csi2_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt format;
if (fse->index != 0 )
return -EINVAL;
format.code = fse->code;
format.width = 1 ;
format.height = 1 ;
csi2_try_format(csi2, sd_state, fse->pad, &format, fse->which);
fse->min_width = format.width;
fse->min_height = format.height;
if (format.code != fse->code)
return -EINVAL;
format.code = fse->code;
format.width = -1 ;
format.height = -1 ;
csi2_try_format(csi2, sd_state, fse->pad, &format, fse->which);
fse->max_width = format.width;
fse->max_height = format.height;
return 0 ;
}
/*
* csi2_get_format - Handle get format by pads subdev method
* @ sd : pointer to v4l2 subdev structure
* @ sd_state : V4L2 subdev state
* @ fmt : pointer to v4l2 subdev format structure
* return - EINVAL or zero on success
*/
static int csi2_get_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
format = __csi2_get_format(csi2, sd_state, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
fmt->format = *format;
return 0 ;
}
/*
* csi2_set_format - Handle set format by pads subdev method
* @ sd : pointer to v4l2 subdev structure
* @ sd_state : V4L2 subdev state
* @ fmt : pointer to v4l2 subdev format structure
* return - EINVAL or zero on success
*/
static int csi2_set_format(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
{
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct v4l2_mbus_framefmt *format;
format = __csi2_get_format(csi2, sd_state, fmt->pad, fmt->which);
if (format == NULL)
return -EINVAL;
csi2_try_format(csi2, sd_state, fmt->pad, &fmt->format, fmt->which);
*format = fmt->format;
/* Propagate the format from sink to source */
if (fmt->pad == CSI2_PAD_SINK) {
format = __csi2_get_format(csi2, sd_state, CSI2_PAD_SOURCE,
fmt->which);
*format = fmt->format;
csi2_try_format(csi2, sd_state, CSI2_PAD_SOURCE, format,
fmt->which);
}
return 0 ;
}
/*
* csi2_init_formats - Initialize formats on all pads
* @ sd : ISP CSI2 V4L2 subdevice
* @ fh : V4L2 subdev file handle
*
* Initialize all pad formats with default values . If fh is not NULL , try
* formats are initialized on the file handle . Otherwise active formats are
* initialized on the device .
*/
static int csi2_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct v4l2_subdev_format format;
memset(&format, 0 , sizeof (format));
format.pad = CSI2_PAD_SINK;
format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
format.format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
format.format.width = 4096 ;
format.format.height = 4096 ;
csi2_set_format(sd, fh ? fh->state : NULL, &format);
return 0 ;
}
/*
* csi2_set_stream - Enable / Disable streaming on the CSI2 module
* @ sd : ISP CSI2 V4L2 subdevice
* @ enable : ISP pipeline stream state
*
* Return 0 on success or a negative error code otherwise .
*/
static int csi2_set_stream(struct v4l2_subdev *sd, int enable)
{
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct isp_device *isp = csi2->isp;
struct isp_video *video_out = &csi2->video_out;
switch (enable) {
case ISP_PIPELINE_STREAM_CONTINUOUS:
if (omap3isp_csiphy_acquire(csi2->phy, &sd->entity) < 0 )
return -ENODEV;
if (csi2->output & CSI2_OUTPUT_MEMORY)
omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CSI2A_WRITE);
csi2_configure(csi2);
csi2_print_status(csi2);
/*
* When outputting to memory with no buffer available , let the
* buffer queue handler start the hardware . A DMA queue flag
* ISP_VIDEO_DMAQUEUE_QUEUED will be set as soon as there is
* a buffer available .
*/
if (csi2->output & CSI2_OUTPUT_MEMORY &&
!(video_out->dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED))
break ;
/* Enable context 0 and IRQs */
atomic_set(&csi2->stopping, 0 );
csi2_ctx_enable(isp, csi2, 0 , 1 );
csi2_if_enable(isp, csi2, 1 );
isp_video_dmaqueue_flags_clr(video_out);
break ;
case ISP_PIPELINE_STREAM_STOPPED:
if (csi2->state == ISP_PIPELINE_STREAM_STOPPED)
return 0 ;
if (omap3isp_module_sync_idle(&sd->entity, &csi2->wait,
&csi2->stopping))
dev_dbg(isp->dev, "%s: module stop timeout.\n" ,
sd->name);
csi2_ctx_enable(isp, csi2, 0 , 0 );
csi2_if_enable(isp, csi2, 0 );
csi2_irq_ctx_set(isp, csi2, 0 );
omap3isp_csiphy_release(csi2->phy);
isp_video_dmaqueue_flags_clr(video_out);
omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_CSI2A_WRITE);
break ;
}
csi2->state = enable;
return 0 ;
}
/* subdev video operations */
static const struct v4l2_subdev_video_ops csi2_video_ops = {
.s_stream = csi2_set_stream,
};
/* subdev pad operations */
static const struct v4l2_subdev_pad_ops csi2_pad_ops = {
.enum_mbus_code = csi2_enum_mbus_code,
.enum_frame_size = csi2_enum_frame_size,
.get_fmt = csi2_get_format,
.set_fmt = csi2_set_format,
};
/* subdev operations */
static const struct v4l2_subdev_ops csi2_ops = {
.video = &csi2_video_ops,
.pad = &csi2_pad_ops,
};
/* subdev internal operations */
static const struct v4l2_subdev_internal_ops csi2_internal_ops = {
.open = csi2_init_formats,
};
/* -----------------------------------------------------------------------------
* Media entity operations
*/
/*
* csi2_link_setup - Setup CSI2 connections .
* @ entity : Pointer to media entity structure
* @ local : Pointer to local pad array
* @ remote : Pointer to remote pad array
* @ flags : Link flags
* return - EINVAL or zero on success
*/
static int csi2_link_setup(struct media_entity *entity,
const struct media_pad *local,
const struct media_pad *remote, u32 flags)
{
struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd);
struct isp_csi2_ctrl_cfg *ctrl = &csi2->ctrl;
unsigned int index = local->index;
/*
* The ISP core doesn ' t support pipelines with multiple video outputs .
* Revisit this when it will be implemented , and return - EBUSY for now .
*/
/* FIXME: this is actually a hack! */
if (is_media_entity_v4l2_subdev(remote->entity))
index |= 2 << 16 ;
switch (index) {
case CSI2_PAD_SOURCE:
if (flags & MEDIA_LNK_FL_ENABLED) {
if (csi2->output & ~CSI2_OUTPUT_MEMORY)
return -EBUSY;
csi2->output |= CSI2_OUTPUT_MEMORY;
} else {
csi2->output &= ~CSI2_OUTPUT_MEMORY;
}
break ;
case CSI2_PAD_SOURCE | 2 << 16 :
if (flags & MEDIA_LNK_FL_ENABLED) {
if (csi2->output & ~CSI2_OUTPUT_CCDC)
return -EBUSY;
csi2->output |= CSI2_OUTPUT_CCDC;
} else {
csi2->output &= ~CSI2_OUTPUT_CCDC;
}
break ;
default :
/* Link from camera to CSI2 is fixed... */
return -EINVAL;
}
ctrl->vp_only_enable =
(csi2->output & CSI2_OUTPUT_MEMORY) ? false : true ;
ctrl->vp_clk_enable = !!(csi2->output & CSI2_OUTPUT_CCDC);
return 0 ;
}
/* media operations */
static const struct media_entity_operations csi2_media_ops = {
.link_setup = csi2_link_setup,
.link_validate = v4l2_subdev_link_validate,
};
void omap3isp_csi2_unregister_entities(struct isp_csi2_device *csi2)
{
v4l2_device_unregister_subdev(&csi2->subdev);
omap3isp_video_unregister(&csi2->video_out);
}
int omap3isp_csi2_register_entities(struct isp_csi2_device *csi2,
struct v4l2_device *vdev)
{
int ret;
/* Register the subdev and video nodes. */
csi2->subdev.dev = vdev->mdev->dev;
ret = v4l2_device_register_subdev(vdev, &csi2->subdev);
if (ret < 0 )
goto error;
ret = omap3isp_video_register(&csi2->video_out, vdev);
if (ret < 0 )
goto error;
return 0 ;
error:
omap3isp_csi2_unregister_entities(csi2);
return ret;
}
/* -----------------------------------------------------------------------------
* ISP CSI2 initialisation and cleanup
*/
/*
* csi2_init_entities - Initialize subdev and media entity .
* @ csi2 : Pointer to csi2 structure .
* return - ENOMEM or zero on success
*/
static int csi2_init_entities(struct isp_csi2_device *csi2)
{
struct v4l2_subdev *sd = &csi2->subdev;
struct media_pad *pads = csi2->pads;
struct media_entity *me = &sd->entity;
int ret;
v4l2_subdev_init(sd, &csi2_ops);
sd->internal_ops = &csi2_internal_ops;
strscpy(sd->name, "OMAP3 ISP CSI2a" , sizeof (sd->name));
sd->grp_id = 1 << 16 ; /* group ID for isp subdevs */
v4l2_set_subdevdata(sd, csi2);
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
pads[CSI2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
pads[CSI2_PAD_SINK].flags = MEDIA_PAD_FL_SINK
| MEDIA_PAD_FL_MUST_CONNECT;
me->ops = &csi2_media_ops;
ret = media_entity_pads_init(me, CSI2_PADS_NUM, pads);
if (ret < 0 )
return ret;
csi2_init_formats(sd, NULL);
/* Video device node */
csi2->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
csi2->video_out.ops = &csi2_ispvideo_ops;
csi2->video_out.bpl_alignment = 32 ;
csi2->video_out.bpl_zero_padding = 1 ;
csi2->video_out.bpl_max = 0 x1ffe0;
csi2->video_out.isp = csi2->isp;
csi2->video_out.capture_mem = PAGE_ALIGN(4096 * 4096 ) * 3 ;
ret = omap3isp_video_init(&csi2->video_out, "CSI2a" );
if (ret < 0 )
goto error_video;
return 0 ;
error_video:
media_entity_cleanup(&csi2->subdev.entity);
return ret;
}
/*
* omap3isp_csi2_init - Routine for module driver init
*/
int omap3isp_csi2_init(struct isp_device *isp)
{
struct isp_csi2_device *csi2a = &isp->isp_csi2a;
struct isp_csi2_device *csi2c = &isp->isp_csi2c;
int ret;
csi2a->isp = isp;
csi2a->available = 1 ;
csi2a->regs1 = OMAP3_ISP_IOMEM_CSI2A_REGS1;
csi2a->regs2 = OMAP3_ISP_IOMEM_CSI2A_REGS2;
csi2a->phy = &isp->isp_csiphy2;
csi2a->state = ISP_PIPELINE_STREAM_STOPPED;
init_waitqueue_head(&csi2a->wait);
ret = csi2_init_entities(csi2a);
if (ret < 0 )
return ret;
if (isp->revision == ISP_REVISION_15_0) {
csi2c->isp = isp;
csi2c->available = 1 ;
csi2c->regs1 = OMAP3_ISP_IOMEM_CSI2C_REGS1;
csi2c->regs2 = OMAP3_ISP_IOMEM_CSI2C_REGS2;
csi2c->phy = &isp->isp_csiphy1;
csi2c->state = ISP_PIPELINE_STREAM_STOPPED;
init_waitqueue_head(&csi2c->wait);
}
return 0 ;
}
/*
* omap3isp_csi2_cleanup - Routine for module driver cleanup
*/
void omap3isp_csi2_cleanup(struct isp_device *isp)
{
struct isp_csi2_device *csi2a = &isp->isp_csi2a;
omap3isp_video_cleanup(&csi2a->video_out);
media_entity_cleanup(&csi2a->subdev.entity);
}
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