1730b0ac3SDaniel Graefe // SPDX-License-Identifier: GPL-2.0+
271414826SSergio Aguirre /*
371414826SSergio Aguirre * TI OMAP4 ISS V4L2 Driver - ISP IPIPEIF module
471414826SSergio Aguirre *
571414826SSergio Aguirre * Copyright (C) 2012 Texas Instruments, Inc.
671414826SSergio Aguirre *
771414826SSergio Aguirre * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
871414826SSergio Aguirre */
971414826SSergio Aguirre
1071414826SSergio Aguirre #include <linux/module.h>
1171414826SSergio Aguirre #include <linux/uaccess.h>
1271414826SSergio Aguirre #include <linux/delay.h>
1371414826SSergio Aguirre #include <linux/device.h>
1471414826SSergio Aguirre #include <linux/dma-mapping.h>
1571414826SSergio Aguirre #include <linux/mm.h>
1671414826SSergio Aguirre #include <linux/sched.h>
1771414826SSergio Aguirre
1871414826SSergio Aguirre #include "iss.h"
1971414826SSergio Aguirre #include "iss_regs.h"
2071414826SSergio Aguirre #include "iss_ipipeif.h"
2171414826SSergio Aguirre
2271414826SSergio Aguirre static const unsigned int ipipeif_fmts[] = {
233336f07aSBoris BREZILLON MEDIA_BUS_FMT_SGRBG10_1X10,
243336f07aSBoris BREZILLON MEDIA_BUS_FMT_SRGGB10_1X10,
253336f07aSBoris BREZILLON MEDIA_BUS_FMT_SBGGR10_1X10,
263336f07aSBoris BREZILLON MEDIA_BUS_FMT_SGBRG10_1X10,
273336f07aSBoris BREZILLON MEDIA_BUS_FMT_UYVY8_1X16,
283336f07aSBoris BREZILLON MEDIA_BUS_FMT_YUYV8_1X16,
2971414826SSergio Aguirre };
3071414826SSergio Aguirre
3171414826SSergio Aguirre /*
3271414826SSergio Aguirre * ipipeif_print_status - Print current IPIPEIF Module register values.
3371414826SSergio Aguirre * @ipipeif: Pointer to ISS ISP IPIPEIF device.
3471414826SSergio Aguirre *
3571414826SSergio Aguirre * Also prints other debug information stored in the IPIPEIF module.
3671414826SSergio Aguirre */
3771414826SSergio Aguirre #define IPIPEIF_PRINT_REGISTER(iss, name)\
3871414826SSergio Aguirre dev_dbg(iss->dev, "###IPIPEIF " #name "=0x%08x\n", \
3911abbfd3SLaurent Pinchart iss_reg_read(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_##name))
4071414826SSergio Aguirre
4171414826SSergio Aguirre #define ISIF_PRINT_REGISTER(iss, name)\
4271414826SSergio Aguirre dev_dbg(iss->dev, "###ISIF " #name "=0x%08x\n", \
4311abbfd3SLaurent Pinchart iss_reg_read(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_##name))
4471414826SSergio Aguirre
4571414826SSergio Aguirre #define ISP5_PRINT_REGISTER(iss, name)\
4671414826SSergio Aguirre dev_dbg(iss->dev, "###ISP5 " #name "=0x%08x\n", \
4711abbfd3SLaurent Pinchart iss_reg_read(iss, OMAP4_ISS_MEM_ISP_SYS1, ISP5_##name))
4871414826SSergio Aguirre
ipipeif_print_status(struct iss_ipipeif_device * ipipeif)4971414826SSergio Aguirre static void ipipeif_print_status(struct iss_ipipeif_device *ipipeif)
5071414826SSergio Aguirre {
5171414826SSergio Aguirre struct iss_device *iss = to_iss_device(ipipeif);
5271414826SSergio Aguirre
5371414826SSergio Aguirre dev_dbg(iss->dev, "-------------IPIPEIF Register dump-------------\n");
5471414826SSergio Aguirre
5571414826SSergio Aguirre IPIPEIF_PRINT_REGISTER(iss, CFG1);
5671414826SSergio Aguirre IPIPEIF_PRINT_REGISTER(iss, CFG2);
5771414826SSergio Aguirre
5871414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, SYNCEN);
5971414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, CADU);
6071414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, CADL);
6171414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, MODESET);
6271414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, CCOLP);
6371414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, SPH);
6471414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, LNH);
6571414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, LNV);
6654d0059cSLaurent Pinchart ISIF_PRINT_REGISTER(iss, VDINT(0));
6771414826SSergio Aguirre ISIF_PRINT_REGISTER(iss, HSIZE);
6871414826SSergio Aguirre
6971414826SSergio Aguirre ISP5_PRINT_REGISTER(iss, SYSCONFIG);
7071414826SSergio Aguirre ISP5_PRINT_REGISTER(iss, CTRL);
7171414826SSergio Aguirre ISP5_PRINT_REGISTER(iss, IRQSTATUS(0));
7271414826SSergio Aguirre ISP5_PRINT_REGISTER(iss, IRQENABLE_SET(0));
7371414826SSergio Aguirre ISP5_PRINT_REGISTER(iss, IRQENABLE_CLR(0));
7471414826SSergio Aguirre
7571414826SSergio Aguirre dev_dbg(iss->dev, "-----------------------------------------------\n");
7671414826SSergio Aguirre }
7771414826SSergio Aguirre
ipipeif_write_enable(struct iss_ipipeif_device * ipipeif,u8 enable)7871414826SSergio Aguirre static void ipipeif_write_enable(struct iss_ipipeif_device *ipipeif, u8 enable)
7971414826SSergio Aguirre {
8071414826SSergio Aguirre struct iss_device *iss = to_iss_device(ipipeif);
8171414826SSergio Aguirre
8211abbfd3SLaurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_SYNCEN,
8311abbfd3SLaurent Pinchart ISIF_SYNCEN_DWEN, enable ? ISIF_SYNCEN_DWEN : 0);
8471414826SSergio Aguirre }
8571414826SSergio Aguirre
8671414826SSergio Aguirre /*
8771414826SSergio Aguirre * ipipeif_enable - Enable/Disable IPIPEIF.
8871414826SSergio Aguirre * @enable: enable flag
8971414826SSergio Aguirre *
9071414826SSergio Aguirre */
ipipeif_enable(struct iss_ipipeif_device * ipipeif,u8 enable)9171414826SSergio Aguirre static void ipipeif_enable(struct iss_ipipeif_device *ipipeif, u8 enable)
9271414826SSergio Aguirre {
9371414826SSergio Aguirre struct iss_device *iss = to_iss_device(ipipeif);
9471414826SSergio Aguirre
9511abbfd3SLaurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_SYNCEN,
9611abbfd3SLaurent Pinchart ISIF_SYNCEN_SYEN, enable ? ISIF_SYNCEN_SYEN : 0);
9771414826SSergio Aguirre }
9871414826SSergio Aguirre
9971414826SSergio Aguirre /* -----------------------------------------------------------------------------
10071414826SSergio Aguirre * Format- and pipeline-related configuration helpers
10171414826SSergio Aguirre */
10271414826SSergio Aguirre
10371414826SSergio Aguirre /*
10471414826SSergio Aguirre * ipipeif_set_outaddr - Set memory address to save output image
10571414826SSergio Aguirre * @ipipeif: Pointer to ISP IPIPEIF device.
10671414826SSergio Aguirre * @addr: 32-bit memory address aligned on 32 byte boundary.
10771414826SSergio Aguirre *
10871414826SSergio Aguirre * Sets the memory address where the output will be saved.
10971414826SSergio Aguirre */
ipipeif_set_outaddr(struct iss_ipipeif_device * ipipeif,u32 addr)11071414826SSergio Aguirre static void ipipeif_set_outaddr(struct iss_ipipeif_device *ipipeif, u32 addr)
11171414826SSergio Aguirre {
11271414826SSergio Aguirre struct iss_device *iss = to_iss_device(ipipeif);
11371414826SSergio Aguirre
114107c59e0SAmarjargal Gundjalam /* Save address split in Base Address H & L */
11511abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CADU,
11611abbfd3SLaurent Pinchart (addr >> (16 + 5)) & ISIF_CADU_MASK);
11711abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CADL,
11811abbfd3SLaurent Pinchart (addr >> 5) & ISIF_CADL_MASK);
11971414826SSergio Aguirre }
12071414826SSergio Aguirre
ipipeif_configure(struct iss_ipipeif_device * ipipeif)12171414826SSergio Aguirre static void ipipeif_configure(struct iss_ipipeif_device *ipipeif)
12271414826SSergio Aguirre {
12371414826SSergio Aguirre struct iss_device *iss = to_iss_device(ipipeif);
12486efc504SLaurent Pinchart const struct iss_format_info *info;
12571414826SSergio Aguirre struct v4l2_mbus_framefmt *format;
12671414826SSergio Aguirre u32 isif_ccolp = 0;
12771414826SSergio Aguirre
12871414826SSergio Aguirre omap4iss_configure_bridge(iss, ipipeif->input);
12971414826SSergio Aguirre
13071414826SSergio Aguirre /* IPIPEIF_PAD_SINK */
13171414826SSergio Aguirre format = &ipipeif->formats[IPIPEIF_PAD_SINK];
13271414826SSergio Aguirre
13371414826SSergio Aguirre /* IPIPEIF with YUV422 input from ISIF */
13411abbfd3SLaurent Pinchart iss_reg_clr(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_CFG1,
13511abbfd3SLaurent Pinchart IPIPEIF_CFG1_INPSRC1_MASK | IPIPEIF_CFG1_INPSRC2_MASK);
13671414826SSergio Aguirre
13771414826SSergio Aguirre /* Select ISIF/IPIPEIF input format */
13871414826SSergio Aguirre switch (format->code) {
1393336f07aSBoris BREZILLON case MEDIA_BUS_FMT_UYVY8_1X16:
1403336f07aSBoris BREZILLON case MEDIA_BUS_FMT_YUYV8_1X16:
14111abbfd3SLaurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_MODESET,
14211abbfd3SLaurent Pinchart ISIF_MODESET_CCDMD | ISIF_MODESET_INPMOD_MASK |
14311abbfd3SLaurent Pinchart ISIF_MODESET_CCDW_MASK,
14411abbfd3SLaurent Pinchart ISIF_MODESET_INPMOD_YCBCR16);
14571414826SSergio Aguirre
14611abbfd3SLaurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_CFG2,
14711abbfd3SLaurent Pinchart IPIPEIF_CFG2_YUV8, IPIPEIF_CFG2_YUV16);
14871414826SSergio Aguirre
14971414826SSergio Aguirre break;
1503336f07aSBoris BREZILLON case MEDIA_BUS_FMT_SGRBG10_1X10:
15171414826SSergio Aguirre isif_ccolp = ISIF_CCOLP_CP0_F0_GR |
15271414826SSergio Aguirre ISIF_CCOLP_CP1_F0_R |
15371414826SSergio Aguirre ISIF_CCOLP_CP2_F0_B |
15471414826SSergio Aguirre ISIF_CCOLP_CP3_F0_GB;
15571414826SSergio Aguirre goto cont_raw;
1563336f07aSBoris BREZILLON case MEDIA_BUS_FMT_SRGGB10_1X10:
15771414826SSergio Aguirre isif_ccolp = ISIF_CCOLP_CP0_F0_R |
15871414826SSergio Aguirre ISIF_CCOLP_CP1_F0_GR |
15971414826SSergio Aguirre ISIF_CCOLP_CP2_F0_GB |
16071414826SSergio Aguirre ISIF_CCOLP_CP3_F0_B;
16171414826SSergio Aguirre goto cont_raw;
1623336f07aSBoris BREZILLON case MEDIA_BUS_FMT_SBGGR10_1X10:
16371414826SSergio Aguirre isif_ccolp = ISIF_CCOLP_CP0_F0_B |
16471414826SSergio Aguirre ISIF_CCOLP_CP1_F0_GB |
16571414826SSergio Aguirre ISIF_CCOLP_CP2_F0_GR |
16671414826SSergio Aguirre ISIF_CCOLP_CP3_F0_R;
16771414826SSergio Aguirre goto cont_raw;
1683336f07aSBoris BREZILLON case MEDIA_BUS_FMT_SGBRG10_1X10:
16971414826SSergio Aguirre isif_ccolp = ISIF_CCOLP_CP0_F0_GB |
17071414826SSergio Aguirre ISIF_CCOLP_CP1_F0_B |
17171414826SSergio Aguirre ISIF_CCOLP_CP2_F0_R |
17271414826SSergio Aguirre ISIF_CCOLP_CP3_F0_GR;
17371414826SSergio Aguirre cont_raw:
17411abbfd3SLaurent Pinchart iss_reg_clr(iss, OMAP4_ISS_MEM_ISP_IPIPEIF, IPIPEIF_CFG2,
17511abbfd3SLaurent Pinchart IPIPEIF_CFG2_YUV16);
17671414826SSergio Aguirre
17711abbfd3SLaurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_MODESET,
17811abbfd3SLaurent Pinchart ISIF_MODESET_CCDMD | ISIF_MODESET_INPMOD_MASK |
17911abbfd3SLaurent Pinchart ISIF_MODESET_CCDW_MASK, ISIF_MODESET_INPMOD_RAW |
18011abbfd3SLaurent Pinchart ISIF_MODESET_CCDW_2BIT);
18171414826SSergio Aguirre
18286efc504SLaurent Pinchart info = omap4iss_video_format_info(format->code);
18311abbfd3SLaurent Pinchart iss_reg_update(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CGAMMAWD,
18411abbfd3SLaurent Pinchart ISIF_CGAMMAWD_GWDI_MASK,
18511abbfd3SLaurent Pinchart ISIF_CGAMMAWD_GWDI(info->bpp));
18671414826SSergio Aguirre
18771414826SSergio Aguirre /* Set RAW Bayer pattern */
18811abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_CCOLP,
18911abbfd3SLaurent Pinchart isif_ccolp);
19071414826SSergio Aguirre break;
19171414826SSergio Aguirre }
19271414826SSergio Aguirre
19311abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_SPH, 0 & ISIF_SPH_MASK);
19411abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_LNH,
19511abbfd3SLaurent Pinchart (format->width - 1) & ISIF_LNH_MASK);
19611abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_LNV,
19711abbfd3SLaurent Pinchart (format->height - 1) & ISIF_LNV_MASK);
19871414826SSergio Aguirre
19971414826SSergio Aguirre /* Generate ISIF0 on the last line of the image */
20011abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_VDINT(0),
20111abbfd3SLaurent Pinchart format->height - 1);
20271414826SSergio Aguirre
20371414826SSergio Aguirre /* IPIPEIF_PAD_SOURCE_ISIF_SF */
20471414826SSergio Aguirre format = &ipipeif->formats[IPIPEIF_PAD_SOURCE_ISIF_SF];
20571414826SSergio Aguirre
20611abbfd3SLaurent Pinchart iss_reg_write(iss, OMAP4_ISS_MEM_ISP_ISIF, ISIF_HSIZE,
20711abbfd3SLaurent Pinchart (ipipeif->video_out.bpl_value >> 5) &
20811abbfd3SLaurent Pinchart ISIF_HSIZE_HSIZE_MASK);
20971414826SSergio Aguirre
21071414826SSergio Aguirre /* IPIPEIF_PAD_SOURCE_VP */
21171414826SSergio Aguirre /* Do nothing? */
21271414826SSergio Aguirre }
21371414826SSergio Aguirre
21471414826SSergio Aguirre /* -----------------------------------------------------------------------------
21571414826SSergio Aguirre * Interrupt handling
21671414826SSergio Aguirre */
21771414826SSergio Aguirre
ipipeif_isr_buffer(struct iss_ipipeif_device * ipipeif)21871414826SSergio Aguirre static void ipipeif_isr_buffer(struct iss_ipipeif_device *ipipeif)
21971414826SSergio Aguirre {
22071414826SSergio Aguirre struct iss_buffer *buffer;
22171414826SSergio Aguirre
22274536b2fSLaurent Pinchart /* The ISIF generates VD0 interrupts even when writes are disabled.
22374536b2fSLaurent Pinchart * deal with it anyway). Disabling the ISIF when no buffer is available
22474536b2fSLaurent Pinchart * is thus not be enough, we need to handle the situation explicitly.
22574536b2fSLaurent Pinchart */
22674536b2fSLaurent Pinchart if (list_empty(&ipipeif->video_out.dmaqueue))
22774536b2fSLaurent Pinchart return;
22874536b2fSLaurent Pinchart
22971414826SSergio Aguirre ipipeif_write_enable(ipipeif, 0);
23071414826SSergio Aguirre
23171414826SSergio Aguirre buffer = omap4iss_video_buffer_next(&ipipeif->video_out);
2329058fc92SAmarjargal Gundjalam if (!buffer)
23371414826SSergio Aguirre return;
23471414826SSergio Aguirre
23571414826SSergio Aguirre ipipeif_set_outaddr(ipipeif, buffer->iss_addr);
23671414826SSergio Aguirre
23771414826SSergio Aguirre ipipeif_write_enable(ipipeif, 1);
23871414826SSergio Aguirre }
23971414826SSergio Aguirre
24071414826SSergio Aguirre /*
24171414826SSergio Aguirre * omap4iss_ipipeif_isr - Configure ipipeif during interframe time.
24271414826SSergio Aguirre * @ipipeif: Pointer to ISP IPIPEIF device.
24371414826SSergio Aguirre * @events: IPIPEIF events
24471414826SSergio Aguirre */
omap4iss_ipipeif_isr(struct iss_ipipeif_device * ipipeif,u32 events)24571414826SSergio Aguirre void omap4iss_ipipeif_isr(struct iss_ipipeif_device *ipipeif, u32 events)
24671414826SSergio Aguirre {
247a0fe029cSLaurent Pinchart if (omap4iss_module_sync_is_stopping(&ipipeif->wait,
248a0fe029cSLaurent Pinchart &ipipeif->stopping))
24971414826SSergio Aguirre return;
25071414826SSergio Aguirre
251dd162547SLaurent Pinchart if ((events & ISP5_IRQ_ISIF_INT(0)) &&
252dd162547SLaurent Pinchart (ipipeif->output & IPIPEIF_OUTPUT_MEMORY))
253dd162547SLaurent Pinchart ipipeif_isr_buffer(ipipeif);
25471414826SSergio Aguirre }
25571414826SSergio Aguirre
25671414826SSergio Aguirre /* -----------------------------------------------------------------------------
25771414826SSergio Aguirre * ISP video operations
25871414826SSergio Aguirre */
25971414826SSergio Aguirre
ipipeif_video_queue(struct iss_video * video,struct iss_buffer * buffer)260a0fe029cSLaurent Pinchart static int ipipeif_video_queue(struct iss_video *video,
261a0fe029cSLaurent Pinchart struct iss_buffer *buffer)
26271414826SSergio Aguirre {
26371414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = container_of(video,
26471414826SSergio Aguirre struct iss_ipipeif_device, video_out);
26571414826SSergio Aguirre
26671414826SSergio Aguirre if (!(ipipeif->output & IPIPEIF_OUTPUT_MEMORY))
26771414826SSergio Aguirre return -ENODEV;
26871414826SSergio Aguirre
26971414826SSergio Aguirre ipipeif_set_outaddr(ipipeif, buffer->iss_addr);
27071414826SSergio Aguirre
27171414826SSergio Aguirre /*
27271414826SSergio Aguirre * If streaming was enabled before there was a buffer queued
27371414826SSergio Aguirre * or underrun happened in the ISR, the hardware was not enabled
27471414826SSergio Aguirre * and DMA queue flag ISS_VIDEO_DMAQUEUE_UNDERRUN is still set.
27571414826SSergio Aguirre * Enable it now.
27671414826SSergio Aguirre */
27771414826SSergio Aguirre if (video->dmaqueue_flags & ISS_VIDEO_DMAQUEUE_UNDERRUN) {
27871414826SSergio Aguirre if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY)
27971414826SSergio Aguirre ipipeif_write_enable(ipipeif, 1);
28071414826SSergio Aguirre ipipeif_enable(ipipeif, 1);
28171414826SSergio Aguirre iss_video_dmaqueue_flags_clr(video);
28271414826SSergio Aguirre }
28371414826SSergio Aguirre
28471414826SSergio Aguirre return 0;
28571414826SSergio Aguirre }
28671414826SSergio Aguirre
28771414826SSergio Aguirre static const struct iss_video_operations ipipeif_video_ops = {
28871414826SSergio Aguirre .queue = ipipeif_video_queue,
28971414826SSergio Aguirre };
29071414826SSergio Aguirre
29171414826SSergio Aguirre /* -----------------------------------------------------------------------------
29271414826SSergio Aguirre * V4L2 subdev operations
29371414826SSergio Aguirre */
29471414826SSergio Aguirre
29571414826SSergio Aguirre #define IPIPEIF_DRV_SUBCLK_MASK (OMAP4_ISS_ISP_SUBCLK_IPIPEIF |\
29671414826SSergio Aguirre OMAP4_ISS_ISP_SUBCLK_ISIF)
29771414826SSergio Aguirre /*
29871414826SSergio Aguirre * ipipeif_set_stream - Enable/Disable streaming on the IPIPEIF module
29971414826SSergio Aguirre * @sd: ISP IPIPEIF V4L2 subdevice
30071414826SSergio Aguirre * @enable: Enable/disable stream
30171414826SSergio Aguirre */
ipipeif_set_stream(struct v4l2_subdev * sd,int enable)30271414826SSergio Aguirre static int ipipeif_set_stream(struct v4l2_subdev *sd, int enable)
30371414826SSergio Aguirre {
30471414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
30571414826SSergio Aguirre struct iss_device *iss = to_iss_device(ipipeif);
30671414826SSergio Aguirre struct iss_video *video_out = &ipipeif->video_out;
30771414826SSergio Aguirre int ret = 0;
30871414826SSergio Aguirre
30971414826SSergio Aguirre if (ipipeif->state == ISS_PIPELINE_STREAM_STOPPED) {
31071414826SSergio Aguirre if (enable == ISS_PIPELINE_STREAM_STOPPED)
31171414826SSergio Aguirre return 0;
31271414826SSergio Aguirre
31371414826SSergio Aguirre omap4iss_isp_subclk_enable(iss, IPIPEIF_DRV_SUBCLK_MASK);
31471414826SSergio Aguirre }
31571414826SSergio Aguirre
31671414826SSergio Aguirre switch (enable) {
31771414826SSergio Aguirre case ISS_PIPELINE_STREAM_CONTINUOUS:
31871414826SSergio Aguirre
31971414826SSergio Aguirre ipipeif_configure(ipipeif);
32071414826SSergio Aguirre ipipeif_print_status(ipipeif);
32171414826SSergio Aguirre
32271414826SSergio Aguirre /*
32371414826SSergio Aguirre * When outputting to memory with no buffer available, let the
32471414826SSergio Aguirre * buffer queue handler start the hardware. A DMA queue flag
32571414826SSergio Aguirre * ISS_VIDEO_DMAQUEUE_QUEUED will be set as soon as there is
32671414826SSergio Aguirre * a buffer available.
32771414826SSergio Aguirre */
32871414826SSergio Aguirre if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY &&
32971414826SSergio Aguirre !(video_out->dmaqueue_flags & ISS_VIDEO_DMAQUEUE_QUEUED))
33071414826SSergio Aguirre break;
33171414826SSergio Aguirre
33271414826SSergio Aguirre atomic_set(&ipipeif->stopping, 0);
33371414826SSergio Aguirre if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY)
33471414826SSergio Aguirre ipipeif_write_enable(ipipeif, 1);
33571414826SSergio Aguirre ipipeif_enable(ipipeif, 1);
33671414826SSergio Aguirre iss_video_dmaqueue_flags_clr(video_out);
33771414826SSergio Aguirre break;
33871414826SSergio Aguirre
33971414826SSergio Aguirre case ISS_PIPELINE_STREAM_STOPPED:
34071414826SSergio Aguirre if (ipipeif->state == ISS_PIPELINE_STREAM_STOPPED)
34171414826SSergio Aguirre return 0;
34271414826SSergio Aguirre if (omap4iss_module_sync_idle(&sd->entity, &ipipeif->wait,
34371414826SSergio Aguirre &ipipeif->stopping))
3446016498fSLaurent Pinchart ret = -ETIMEDOUT;
34571414826SSergio Aguirre
34671414826SSergio Aguirre if (ipipeif->output & IPIPEIF_OUTPUT_MEMORY)
34771414826SSergio Aguirre ipipeif_write_enable(ipipeif, 0);
34871414826SSergio Aguirre ipipeif_enable(ipipeif, 0);
34971414826SSergio Aguirre omap4iss_isp_subclk_disable(iss, IPIPEIF_DRV_SUBCLK_MASK);
35071414826SSergio Aguirre iss_video_dmaqueue_flags_clr(video_out);
35171414826SSergio Aguirre break;
35271414826SSergio Aguirre }
35371414826SSergio Aguirre
35471414826SSergio Aguirre ipipeif->state = enable;
35571414826SSergio Aguirre return ret;
35671414826SSergio Aguirre }
35771414826SSergio Aguirre
35871414826SSergio Aguirre static struct v4l2_mbus_framefmt *
__ipipeif_get_format(struct iss_ipipeif_device * ipipeif,struct v4l2_subdev_state * sd_state,unsigned int pad,enum v4l2_subdev_format_whence which)359a0fe029cSLaurent Pinchart __ipipeif_get_format(struct iss_ipipeif_device *ipipeif,
360*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, unsigned int pad,
361a0fe029cSLaurent Pinchart enum v4l2_subdev_format_whence which)
36271414826SSergio Aguirre {
36371414826SSergio Aguirre if (which == V4L2_SUBDEV_FORMAT_TRY)
364*0d346d2aSTomi Valkeinen return v4l2_subdev_get_try_format(&ipipeif->subdev, sd_state,
365*0d346d2aSTomi Valkeinen pad);
36671414826SSergio Aguirre return &ipipeif->formats[pad];
36771414826SSergio Aguirre }
36871414826SSergio Aguirre
36971414826SSergio Aguirre /*
37071414826SSergio Aguirre * ipipeif_try_format - Try video format on a pad
37171414826SSergio Aguirre * @ipipeif: ISS IPIPEIF device
372f7234138SHans Verkuil * @cfg: V4L2 subdev pad config
37371414826SSergio Aguirre * @pad: Pad number
37471414826SSergio Aguirre * @fmt: Format
37571414826SSergio Aguirre */
37671414826SSergio Aguirre static void
ipipeif_try_format(struct iss_ipipeif_device * ipipeif,struct v4l2_subdev_state * sd_state,unsigned int pad,struct v4l2_mbus_framefmt * fmt,enum v4l2_subdev_format_whence which)377a0fe029cSLaurent Pinchart ipipeif_try_format(struct iss_ipipeif_device *ipipeif,
378*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, unsigned int pad,
379a0fe029cSLaurent Pinchart struct v4l2_mbus_framefmt *fmt,
38071414826SSergio Aguirre enum v4l2_subdev_format_whence which)
38171414826SSergio Aguirre {
38271414826SSergio Aguirre struct v4l2_mbus_framefmt *format;
38371414826SSergio Aguirre unsigned int width = fmt->width;
38471414826SSergio Aguirre unsigned int height = fmt->height;
38571414826SSergio Aguirre unsigned int i;
38671414826SSergio Aguirre
38771414826SSergio Aguirre switch (pad) {
38871414826SSergio Aguirre case IPIPEIF_PAD_SINK:
389a0fe029cSLaurent Pinchart /* TODO: If the IPIPEIF output formatter pad is connected
390a0fe029cSLaurent Pinchart * directly to the resizer, only YUV formats can be used.
39171414826SSergio Aguirre */
39271414826SSergio Aguirre for (i = 0; i < ARRAY_SIZE(ipipeif_fmts); i++) {
39371414826SSergio Aguirre if (fmt->code == ipipeif_fmts[i])
39471414826SSergio Aguirre break;
39571414826SSergio Aguirre }
39671414826SSergio Aguirre
39771414826SSergio Aguirre /* If not found, use SGRBG10 as default */
39871414826SSergio Aguirre if (i >= ARRAY_SIZE(ipipeif_fmts))
3993336f07aSBoris BREZILLON fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
40071414826SSergio Aguirre
40171414826SSergio Aguirre /* Clamp the input size. */
40271414826SSergio Aguirre fmt->width = clamp_t(u32, width, 1, 8192);
40371414826SSergio Aguirre fmt->height = clamp_t(u32, height, 1, 8192);
40471414826SSergio Aguirre break;
40571414826SSergio Aguirre
40671414826SSergio Aguirre case IPIPEIF_PAD_SOURCE_ISIF_SF:
407*0d346d2aSTomi Valkeinen format = __ipipeif_get_format(ipipeif, sd_state,
408*0d346d2aSTomi Valkeinen IPIPEIF_PAD_SINK,
409a0fe029cSLaurent Pinchart which);
41071414826SSergio Aguirre memcpy(fmt, format, sizeof(*fmt));
41171414826SSergio Aguirre
41271414826SSergio Aguirre /* The data formatter truncates the number of horizontal output
41371414826SSergio Aguirre * pixels to a multiple of 16. To avoid clipping data, allow
41471414826SSergio Aguirre * callers to request an output size bigger than the input size
41571414826SSergio Aguirre * up to the nearest multiple of 16.
41671414826SSergio Aguirre */
41771414826SSergio Aguirre fmt->width = clamp_t(u32, width, 32, (fmt->width + 15) & ~15);
41871414826SSergio Aguirre fmt->width &= ~15;
41971414826SSergio Aguirre fmt->height = clamp_t(u32, height, 32, fmt->height);
42071414826SSergio Aguirre break;
42171414826SSergio Aguirre
42271414826SSergio Aguirre case IPIPEIF_PAD_SOURCE_VP:
423*0d346d2aSTomi Valkeinen format = __ipipeif_get_format(ipipeif, sd_state,
424*0d346d2aSTomi Valkeinen IPIPEIF_PAD_SINK,
425a0fe029cSLaurent Pinchart which);
42671414826SSergio Aguirre memcpy(fmt, format, sizeof(*fmt));
42771414826SSergio Aguirre
42871414826SSergio Aguirre fmt->width = clamp_t(u32, width, 32, fmt->width);
42971414826SSergio Aguirre fmt->height = clamp_t(u32, height, 32, fmt->height);
43071414826SSergio Aguirre break;
43171414826SSergio Aguirre }
43271414826SSergio Aguirre
43371414826SSergio Aguirre /* Data is written to memory unpacked, each 10-bit or 12-bit pixel is
43471414826SSergio Aguirre * stored on 2 bytes.
43571414826SSergio Aguirre */
43671414826SSergio Aguirre fmt->colorspace = V4L2_COLORSPACE_SRGB;
43771414826SSergio Aguirre fmt->field = V4L2_FIELD_NONE;
43871414826SSergio Aguirre }
43971414826SSergio Aguirre
44071414826SSergio Aguirre /*
44171414826SSergio Aguirre * ipipeif_enum_mbus_code - Handle pixel format enumeration
44271414826SSergio Aguirre * @sd : pointer to v4l2 subdev structure
443f7234138SHans Verkuil * @cfg : V4L2 subdev pad config
44471414826SSergio Aguirre * @code : pointer to v4l2_subdev_mbus_code_enum structure
44571414826SSergio Aguirre * return -EINVAL or zero on success
44671414826SSergio Aguirre */
ipipeif_enum_mbus_code(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_mbus_code_enum * code)44771414826SSergio Aguirre static int ipipeif_enum_mbus_code(struct v4l2_subdev *sd,
448*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state,
44971414826SSergio Aguirre struct v4l2_subdev_mbus_code_enum *code)
45071414826SSergio Aguirre {
45171414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
45271414826SSergio Aguirre struct v4l2_mbus_framefmt *format;
45371414826SSergio Aguirre
45471414826SSergio Aguirre switch (code->pad) {
45571414826SSergio Aguirre case IPIPEIF_PAD_SINK:
45671414826SSergio Aguirre if (code->index >= ARRAY_SIZE(ipipeif_fmts))
45771414826SSergio Aguirre return -EINVAL;
45871414826SSergio Aguirre
45971414826SSergio Aguirre code->code = ipipeif_fmts[code->index];
46071414826SSergio Aguirre break;
46171414826SSergio Aguirre
46271414826SSergio Aguirre case IPIPEIF_PAD_SOURCE_ISIF_SF:
46371414826SSergio Aguirre case IPIPEIF_PAD_SOURCE_VP:
46471414826SSergio Aguirre /* No format conversion inside IPIPEIF */
46571414826SSergio Aguirre if (code->index != 0)
46671414826SSergio Aguirre return -EINVAL;
46771414826SSergio Aguirre
468*0d346d2aSTomi Valkeinen format = __ipipeif_get_format(ipipeif, sd_state,
469*0d346d2aSTomi Valkeinen IPIPEIF_PAD_SINK,
4703f1ccf16SHans Verkuil code->which);
47171414826SSergio Aguirre
47271414826SSergio Aguirre code->code = format->code;
47371414826SSergio Aguirre break;
47471414826SSergio Aguirre
47571414826SSergio Aguirre default:
47671414826SSergio Aguirre return -EINVAL;
47771414826SSergio Aguirre }
47871414826SSergio Aguirre
47971414826SSergio Aguirre return 0;
48071414826SSergio Aguirre }
48171414826SSergio Aguirre
ipipeif_enum_frame_size(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_frame_size_enum * fse)48271414826SSergio Aguirre static int ipipeif_enum_frame_size(struct v4l2_subdev *sd,
483*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state,
48471414826SSergio Aguirre struct v4l2_subdev_frame_size_enum *fse)
48571414826SSergio Aguirre {
48671414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
48771414826SSergio Aguirre struct v4l2_mbus_framefmt format;
48871414826SSergio Aguirre
48971414826SSergio Aguirre if (fse->index != 0)
49071414826SSergio Aguirre return -EINVAL;
49171414826SSergio Aguirre
49271414826SSergio Aguirre format.code = fse->code;
49371414826SSergio Aguirre format.width = 1;
49471414826SSergio Aguirre format.height = 1;
495*0d346d2aSTomi Valkeinen ipipeif_try_format(ipipeif, sd_state, fse->pad, &format, fse->which);
49671414826SSergio Aguirre fse->min_width = format.width;
49771414826SSergio Aguirre fse->min_height = format.height;
49871414826SSergio Aguirre
49971414826SSergio Aguirre if (format.code != fse->code)
50071414826SSergio Aguirre return -EINVAL;
50171414826SSergio Aguirre
50271414826SSergio Aguirre format.code = fse->code;
50371414826SSergio Aguirre format.width = -1;
50471414826SSergio Aguirre format.height = -1;
505*0d346d2aSTomi Valkeinen ipipeif_try_format(ipipeif, sd_state, fse->pad, &format, fse->which);
50671414826SSergio Aguirre fse->max_width = format.width;
50771414826SSergio Aguirre fse->max_height = format.height;
50871414826SSergio Aguirre
50971414826SSergio Aguirre return 0;
51071414826SSergio Aguirre }
51171414826SSergio Aguirre
51271414826SSergio Aguirre /*
51371414826SSergio Aguirre * ipipeif_get_format - Retrieve the video format on a pad
51471414826SSergio Aguirre * @sd : ISP IPIPEIF V4L2 subdevice
515f7234138SHans Verkuil * @cfg: V4L2 subdev pad config
51671414826SSergio Aguirre * @fmt: Format
51771414826SSergio Aguirre *
51871414826SSergio Aguirre * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond
51971414826SSergio Aguirre * to the format type.
52071414826SSergio Aguirre */
ipipeif_get_format(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_format * fmt)521ee8defecSPiotr S. Staszewski static int ipipeif_get_format(struct v4l2_subdev *sd,
522*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state,
52371414826SSergio Aguirre struct v4l2_subdev_format *fmt)
52471414826SSergio Aguirre {
52571414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
52671414826SSergio Aguirre struct v4l2_mbus_framefmt *format;
52771414826SSergio Aguirre
528*0d346d2aSTomi Valkeinen format = __ipipeif_get_format(ipipeif, sd_state, fmt->pad, fmt->which);
5299058fc92SAmarjargal Gundjalam if (!format)
53071414826SSergio Aguirre return -EINVAL;
53171414826SSergio Aguirre
53271414826SSergio Aguirre fmt->format = *format;
53371414826SSergio Aguirre return 0;
53471414826SSergio Aguirre }
53571414826SSergio Aguirre
53671414826SSergio Aguirre /*
53771414826SSergio Aguirre * ipipeif_set_format - Set the video format on a pad
53871414826SSergio Aguirre * @sd : ISP IPIPEIF V4L2 subdevice
539f7234138SHans Verkuil * @cfg: V4L2 subdev pad config
54071414826SSergio Aguirre * @fmt: Format
54171414826SSergio Aguirre *
54271414826SSergio Aguirre * Return 0 on success or -EINVAL if the pad is invalid or doesn't correspond
54371414826SSergio Aguirre * to the format type.
54471414826SSergio Aguirre */
ipipeif_set_format(struct v4l2_subdev * sd,struct v4l2_subdev_state * sd_state,struct v4l2_subdev_format * fmt)545ee8defecSPiotr S. Staszewski static int ipipeif_set_format(struct v4l2_subdev *sd,
546*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state,
54771414826SSergio Aguirre struct v4l2_subdev_format *fmt)
54871414826SSergio Aguirre {
54971414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
55071414826SSergio Aguirre struct v4l2_mbus_framefmt *format;
55171414826SSergio Aguirre
552*0d346d2aSTomi Valkeinen format = __ipipeif_get_format(ipipeif, sd_state, fmt->pad, fmt->which);
5539058fc92SAmarjargal Gundjalam if (!format)
55471414826SSergio Aguirre return -EINVAL;
55571414826SSergio Aguirre
556*0d346d2aSTomi Valkeinen ipipeif_try_format(ipipeif, sd_state, fmt->pad, &fmt->format,
557*0d346d2aSTomi Valkeinen fmt->which);
55871414826SSergio Aguirre *format = fmt->format;
55971414826SSergio Aguirre
56071414826SSergio Aguirre /* Propagate the format from sink to source */
56171414826SSergio Aguirre if (fmt->pad == IPIPEIF_PAD_SINK) {
562*0d346d2aSTomi Valkeinen format = __ipipeif_get_format(ipipeif, sd_state,
563a0fe029cSLaurent Pinchart IPIPEIF_PAD_SOURCE_ISIF_SF,
56471414826SSergio Aguirre fmt->which);
56571414826SSergio Aguirre *format = fmt->format;
566*0d346d2aSTomi Valkeinen ipipeif_try_format(ipipeif, sd_state,
567*0d346d2aSTomi Valkeinen IPIPEIF_PAD_SOURCE_ISIF_SF,
568a0fe029cSLaurent Pinchart format, fmt->which);
56971414826SSergio Aguirre
570*0d346d2aSTomi Valkeinen format = __ipipeif_get_format(ipipeif, sd_state,
571a0fe029cSLaurent Pinchart IPIPEIF_PAD_SOURCE_VP,
57271414826SSergio Aguirre fmt->which);
57371414826SSergio Aguirre *format = fmt->format;
574*0d346d2aSTomi Valkeinen ipipeif_try_format(ipipeif, sd_state, IPIPEIF_PAD_SOURCE_VP,
575*0d346d2aSTomi Valkeinen format,
57671414826SSergio Aguirre fmt->which);
57771414826SSergio Aguirre }
57871414826SSergio Aguirre
57971414826SSergio Aguirre return 0;
58071414826SSergio Aguirre }
58171414826SSergio Aguirre
ipipeif_link_validate(struct v4l2_subdev * sd,struct media_link * link,struct v4l2_subdev_format * source_fmt,struct v4l2_subdev_format * sink_fmt)582a0fe029cSLaurent Pinchart static int ipipeif_link_validate(struct v4l2_subdev *sd,
583a0fe029cSLaurent Pinchart struct media_link *link,
58471414826SSergio Aguirre struct v4l2_subdev_format *source_fmt,
58571414826SSergio Aguirre struct v4l2_subdev_format *sink_fmt)
58671414826SSergio Aguirre {
58771414826SSergio Aguirre /* Check if the two ends match */
58871414826SSergio Aguirre if (source_fmt->format.width != sink_fmt->format.width ||
58971414826SSergio Aguirre source_fmt->format.height != sink_fmt->format.height)
59071414826SSergio Aguirre return -EPIPE;
59171414826SSergio Aguirre
59271414826SSergio Aguirre if (source_fmt->format.code != sink_fmt->format.code)
59371414826SSergio Aguirre return -EPIPE;
59471414826SSergio Aguirre
59571414826SSergio Aguirre return 0;
59671414826SSergio Aguirre }
59771414826SSergio Aguirre
59871414826SSergio Aguirre /*
59971414826SSergio Aguirre * ipipeif_init_formats - Initialize formats on all pads
60071414826SSergio Aguirre * @sd: ISP IPIPEIF V4L2 subdevice
60171414826SSergio Aguirre * @fh: V4L2 subdev file handle
60271414826SSergio Aguirre *
60371414826SSergio Aguirre * Initialize all pad formats with default values. If fh is not NULL, try
60471414826SSergio Aguirre * formats are initialized on the file handle. Otherwise active formats are
60571414826SSergio Aguirre * initialized on the device.
60671414826SSergio Aguirre */
ipipeif_init_formats(struct v4l2_subdev * sd,struct v4l2_subdev_fh * fh)607a0fe029cSLaurent Pinchart static int ipipeif_init_formats(struct v4l2_subdev *sd,
608a0fe029cSLaurent Pinchart struct v4l2_subdev_fh *fh)
60971414826SSergio Aguirre {
61071414826SSergio Aguirre struct v4l2_subdev_format format;
61171414826SSergio Aguirre
61271414826SSergio Aguirre memset(&format, 0, sizeof(format));
61371414826SSergio Aguirre format.pad = IPIPEIF_PAD_SINK;
61471414826SSergio Aguirre format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
6153336f07aSBoris BREZILLON format.format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
61671414826SSergio Aguirre format.format.width = 4096;
61771414826SSergio Aguirre format.format.height = 4096;
618*0d346d2aSTomi Valkeinen ipipeif_set_format(sd, fh ? fh->state : NULL, &format);
61971414826SSergio Aguirre
62071414826SSergio Aguirre return 0;
62171414826SSergio Aguirre }
62271414826SSergio Aguirre
62371414826SSergio Aguirre /* V4L2 subdev video operations */
62471414826SSergio Aguirre static const struct v4l2_subdev_video_ops ipipeif_v4l2_video_ops = {
62571414826SSergio Aguirre .s_stream = ipipeif_set_stream,
62671414826SSergio Aguirre };
62771414826SSergio Aguirre
62871414826SSergio Aguirre /* V4L2 subdev pad operations */
62971414826SSergio Aguirre static const struct v4l2_subdev_pad_ops ipipeif_v4l2_pad_ops = {
63071414826SSergio Aguirre .enum_mbus_code = ipipeif_enum_mbus_code,
63171414826SSergio Aguirre .enum_frame_size = ipipeif_enum_frame_size,
63271414826SSergio Aguirre .get_fmt = ipipeif_get_format,
63371414826SSergio Aguirre .set_fmt = ipipeif_set_format,
63471414826SSergio Aguirre .link_validate = ipipeif_link_validate,
63571414826SSergio Aguirre };
63671414826SSergio Aguirre
63771414826SSergio Aguirre /* V4L2 subdev operations */
63871414826SSergio Aguirre static const struct v4l2_subdev_ops ipipeif_v4l2_ops = {
63971414826SSergio Aguirre .video = &ipipeif_v4l2_video_ops,
64071414826SSergio Aguirre .pad = &ipipeif_v4l2_pad_ops,
64171414826SSergio Aguirre };
64271414826SSergio Aguirre
64371414826SSergio Aguirre /* V4L2 subdev internal operations */
64471414826SSergio Aguirre static const struct v4l2_subdev_internal_ops ipipeif_v4l2_internal_ops = {
64571414826SSergio Aguirre .open = ipipeif_init_formats,
64671414826SSergio Aguirre };
64771414826SSergio Aguirre
64871414826SSergio Aguirre /* -----------------------------------------------------------------------------
64971414826SSergio Aguirre * Media entity operations
65071414826SSergio Aguirre */
65171414826SSergio Aguirre
65271414826SSergio Aguirre /*
65371414826SSergio Aguirre * ipipeif_link_setup - Setup IPIPEIF connections
65471414826SSergio Aguirre * @entity: IPIPEIF media entity
65571414826SSergio Aguirre * @local: Pad at the local end of the link
65671414826SSergio Aguirre * @remote: Pad at the remote end of the link
65771414826SSergio Aguirre * @flags: Link flags
65871414826SSergio Aguirre *
65971414826SSergio Aguirre * return -EINVAL or zero on success
66071414826SSergio Aguirre */
ipipeif_link_setup(struct media_entity * entity,const struct media_pad * local,const struct media_pad * remote,u32 flags)66171414826SSergio Aguirre static int ipipeif_link_setup(struct media_entity *entity,
66271414826SSergio Aguirre const struct media_pad *local,
66371414826SSergio Aguirre const struct media_pad *remote, u32 flags)
66471414826SSergio Aguirre {
66571414826SSergio Aguirre struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
66671414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = v4l2_get_subdevdata(sd);
66771414826SSergio Aguirre struct iss_device *iss = to_iss_device(ipipeif);
668829de29bSMauro Carvalho Chehab unsigned int index = local->index;
66971414826SSergio Aguirre
67059ecd59dSMauro Carvalho Chehab /* FIXME: this is actually a hack! */
67159ecd59dSMauro Carvalho Chehab if (is_media_entity_v4l2_subdev(remote->entity))
67259ecd59dSMauro Carvalho Chehab index |= 2 << 16;
67359ecd59dSMauro Carvalho Chehab
67459ecd59dSMauro Carvalho Chehab switch (index) {
67559ecd59dSMauro Carvalho Chehab case IPIPEIF_PAD_SINK | 2 << 16:
67671414826SSergio Aguirre /* Read from the sensor CSI2a or CSI2b. */
67771414826SSergio Aguirre if (!(flags & MEDIA_LNK_FL_ENABLED)) {
67871414826SSergio Aguirre ipipeif->input = IPIPEIF_INPUT_NONE;
67971414826SSergio Aguirre break;
68071414826SSergio Aguirre }
68171414826SSergio Aguirre
68271414826SSergio Aguirre if (ipipeif->input != IPIPEIF_INPUT_NONE)
68371414826SSergio Aguirre return -EBUSY;
68471414826SSergio Aguirre
68571414826SSergio Aguirre if (remote->entity == &iss->csi2a.subdev.entity)
68671414826SSergio Aguirre ipipeif->input = IPIPEIF_INPUT_CSI2A;
68771414826SSergio Aguirre else if (remote->entity == &iss->csi2b.subdev.entity)
68871414826SSergio Aguirre ipipeif->input = IPIPEIF_INPUT_CSI2B;
68971414826SSergio Aguirre
69071414826SSergio Aguirre break;
69171414826SSergio Aguirre
69259ecd59dSMauro Carvalho Chehab case IPIPEIF_PAD_SOURCE_ISIF_SF:
69371414826SSergio Aguirre /* Write to memory */
69471414826SSergio Aguirre if (flags & MEDIA_LNK_FL_ENABLED) {
69571414826SSergio Aguirre if (ipipeif->output & ~IPIPEIF_OUTPUT_MEMORY)
69671414826SSergio Aguirre return -EBUSY;
69771414826SSergio Aguirre ipipeif->output |= IPIPEIF_OUTPUT_MEMORY;
69871414826SSergio Aguirre } else {
69971414826SSergio Aguirre ipipeif->output &= ~IPIPEIF_OUTPUT_MEMORY;
70071414826SSergio Aguirre }
70171414826SSergio Aguirre break;
70271414826SSergio Aguirre
70359ecd59dSMauro Carvalho Chehab case IPIPEIF_PAD_SOURCE_VP | 2 << 16:
70471414826SSergio Aguirre /* Send to IPIPE/RESIZER */
70571414826SSergio Aguirre if (flags & MEDIA_LNK_FL_ENABLED) {
70671414826SSergio Aguirre if (ipipeif->output & ~IPIPEIF_OUTPUT_VP)
70771414826SSergio Aguirre return -EBUSY;
70871414826SSergio Aguirre ipipeif->output |= IPIPEIF_OUTPUT_VP;
70971414826SSergio Aguirre } else {
71071414826SSergio Aguirre ipipeif->output &= ~IPIPEIF_OUTPUT_VP;
71171414826SSergio Aguirre }
71271414826SSergio Aguirre break;
71371414826SSergio Aguirre
71471414826SSergio Aguirre default:
71571414826SSergio Aguirre return -EINVAL;
71671414826SSergio Aguirre }
71771414826SSergio Aguirre
71871414826SSergio Aguirre return 0;
71971414826SSergio Aguirre }
72071414826SSergio Aguirre
72171414826SSergio Aguirre /* media operations */
72271414826SSergio Aguirre static const struct media_entity_operations ipipeif_media_ops = {
72371414826SSergio Aguirre .link_setup = ipipeif_link_setup,
72471414826SSergio Aguirre .link_validate = v4l2_subdev_link_validate,
72571414826SSergio Aguirre };
72671414826SSergio Aguirre
72771414826SSergio Aguirre /*
72871414826SSergio Aguirre * ipipeif_init_entities - Initialize V4L2 subdev and media entity
72971414826SSergio Aguirre * @ipipeif: ISS ISP IPIPEIF module
73071414826SSergio Aguirre *
73171414826SSergio Aguirre * Return 0 on success and a negative error code on failure.
73271414826SSergio Aguirre */
ipipeif_init_entities(struct iss_ipipeif_device * ipipeif)73371414826SSergio Aguirre static int ipipeif_init_entities(struct iss_ipipeif_device *ipipeif)
73471414826SSergio Aguirre {
73571414826SSergio Aguirre struct v4l2_subdev *sd = &ipipeif->subdev;
73671414826SSergio Aguirre struct media_pad *pads = ipipeif->pads;
73771414826SSergio Aguirre struct media_entity *me = &sd->entity;
73871414826SSergio Aguirre int ret;
73971414826SSergio Aguirre
74071414826SSergio Aguirre ipipeif->input = IPIPEIF_INPUT_NONE;
74171414826SSergio Aguirre
74271414826SSergio Aguirre v4l2_subdev_init(sd, &ipipeif_v4l2_ops);
74371414826SSergio Aguirre sd->internal_ops = &ipipeif_v4l2_internal_ops;
744c0decac1SMauro Carvalho Chehab strscpy(sd->name, "OMAP4 ISS ISP IPIPEIF", sizeof(sd->name));
745c762efd3SArushi Singhal sd->grp_id = BIT(16); /* group ID for iss subdevs */
74671414826SSergio Aguirre v4l2_set_subdevdata(sd, ipipeif);
74771414826SSergio Aguirre sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
74871414826SSergio Aguirre
74971414826SSergio Aguirre pads[IPIPEIF_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
75071414826SSergio Aguirre pads[IPIPEIF_PAD_SOURCE_ISIF_SF].flags = MEDIA_PAD_FL_SOURCE;
75171414826SSergio Aguirre pads[IPIPEIF_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE;
75271414826SSergio Aguirre
75371414826SSergio Aguirre me->ops = &ipipeif_media_ops;
754ab22e77cSMauro Carvalho Chehab ret = media_entity_pads_init(me, IPIPEIF_PADS_NUM, pads);
75571414826SSergio Aguirre if (ret < 0)
75671414826SSergio Aguirre return ret;
75771414826SSergio Aguirre
75871414826SSergio Aguirre ipipeif_init_formats(sd, NULL);
75971414826SSergio Aguirre
76071414826SSergio Aguirre ipipeif->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
76171414826SSergio Aguirre ipipeif->video_out.ops = &ipipeif_video_ops;
76271414826SSergio Aguirre ipipeif->video_out.iss = to_iss_device(ipipeif);
76371414826SSergio Aguirre ipipeif->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 3;
76471414826SSergio Aguirre ipipeif->video_out.bpl_alignment = 32;
76571414826SSergio Aguirre ipipeif->video_out.bpl_zero_padding = 1;
76671414826SSergio Aguirre ipipeif->video_out.bpl_max = 0x1ffe0;
76771414826SSergio Aguirre
7685837ceeaSJavier Martinez Canillas return omap4iss_video_init(&ipipeif->video_out, "ISP IPIPEIF");
76971414826SSergio Aguirre }
77071414826SSergio Aguirre
omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device * ipipeif)77171414826SSergio Aguirre void omap4iss_ipipeif_unregister_entities(struct iss_ipipeif_device *ipipeif)
77271414826SSergio Aguirre {
77371414826SSergio Aguirre v4l2_device_unregister_subdev(&ipipeif->subdev);
77471414826SSergio Aguirre omap4iss_video_unregister(&ipipeif->video_out);
77571414826SSergio Aguirre }
77671414826SSergio Aguirre
omap4iss_ipipeif_register_entities(struct iss_ipipeif_device * ipipeif,struct v4l2_device * vdev)77771414826SSergio Aguirre int omap4iss_ipipeif_register_entities(struct iss_ipipeif_device *ipipeif,
77871414826SSergio Aguirre struct v4l2_device *vdev)
77971414826SSergio Aguirre {
78071414826SSergio Aguirre int ret;
78171414826SSergio Aguirre
78271414826SSergio Aguirre /* Register the subdev and video node. */
78371414826SSergio Aguirre ret = v4l2_device_register_subdev(vdev, &ipipeif->subdev);
78471414826SSergio Aguirre if (ret < 0)
78571414826SSergio Aguirre goto error;
78671414826SSergio Aguirre
78771414826SSergio Aguirre ret = omap4iss_video_register(&ipipeif->video_out, vdev);
78871414826SSergio Aguirre if (ret < 0)
78971414826SSergio Aguirre goto error;
79071414826SSergio Aguirre
79171414826SSergio Aguirre return 0;
79271414826SSergio Aguirre
79371414826SSergio Aguirre error:
79471414826SSergio Aguirre omap4iss_ipipeif_unregister_entities(ipipeif);
79571414826SSergio Aguirre return ret;
79671414826SSergio Aguirre }
79771414826SSergio Aguirre
79871414826SSergio Aguirre /* -----------------------------------------------------------------------------
79971414826SSergio Aguirre * ISP IPIPEIF initialisation and cleanup
80071414826SSergio Aguirre */
80171414826SSergio Aguirre
80271414826SSergio Aguirre /*
80371414826SSergio Aguirre * omap4iss_ipipeif_init - IPIPEIF module initialization.
80471414826SSergio Aguirre * @iss: Device pointer specific to the OMAP4 ISS.
80571414826SSergio Aguirre *
80671414826SSergio Aguirre * TODO: Get the initialisation values from platform data.
80771414826SSergio Aguirre *
80871414826SSergio Aguirre * Return 0 on success or a negative error code otherwise.
80971414826SSergio Aguirre */
omap4iss_ipipeif_init(struct iss_device * iss)81071414826SSergio Aguirre int omap4iss_ipipeif_init(struct iss_device *iss)
81171414826SSergio Aguirre {
81271414826SSergio Aguirre struct iss_ipipeif_device *ipipeif = &iss->ipipeif;
81371414826SSergio Aguirre
81471414826SSergio Aguirre ipipeif->state = ISS_PIPELINE_STREAM_STOPPED;
81571414826SSergio Aguirre init_waitqueue_head(&ipipeif->wait);
81671414826SSergio Aguirre
81771414826SSergio Aguirre return ipipeif_init_entities(ipipeif);
81871414826SSergio Aguirre }
81971414826SSergio Aguirre
82071414826SSergio Aguirre /*
82104e02151SJavier Martinez Canillas * omap4iss_ipipeif_create_links() - IPIPEIF pads links creation
8225837ceeaSJavier Martinez Canillas * @iss: Pointer to ISS device
8235837ceeaSJavier Martinez Canillas *
8245837ceeaSJavier Martinez Canillas * return negative error code or zero on success
8255837ceeaSJavier Martinez Canillas */
omap4iss_ipipeif_create_links(struct iss_device * iss)82604e02151SJavier Martinez Canillas int omap4iss_ipipeif_create_links(struct iss_device *iss)
8275837ceeaSJavier Martinez Canillas {
8285837ceeaSJavier Martinez Canillas struct iss_ipipeif_device *ipipeif = &iss->ipipeif;
8295837ceeaSJavier Martinez Canillas
8305837ceeaSJavier Martinez Canillas /* Connect the IPIPEIF subdev to the video node. */
8315837ceeaSJavier Martinez Canillas return media_create_pad_link(&ipipeif->subdev.entity,
8325837ceeaSJavier Martinez Canillas IPIPEIF_PAD_SOURCE_ISIF_SF,
8335837ceeaSJavier Martinez Canillas &ipipeif->video_out.video.entity, 0, 0);
8345837ceeaSJavier Martinez Canillas }
8355837ceeaSJavier Martinez Canillas
8365837ceeaSJavier Martinez Canillas /*
83771414826SSergio Aguirre * omap4iss_ipipeif_cleanup - IPIPEIF module cleanup.
83871414826SSergio Aguirre * @iss: Device pointer specific to the OMAP4 ISS.
83971414826SSergio Aguirre */
omap4iss_ipipeif_cleanup(struct iss_device * iss)84071414826SSergio Aguirre void omap4iss_ipipeif_cleanup(struct iss_device *iss)
84171414826SSergio Aguirre {
8429d9104fbSLaurent Pinchart struct iss_ipipeif_device *ipipeif = &iss->ipipeif;
8439d9104fbSLaurent Pinchart
8449d9104fbSLaurent Pinchart media_entity_cleanup(&ipipeif->subdev.entity);
84571414826SSergio Aguirre }
846