2008-07-16 18:59:28 -07:00
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/*
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* V4L2 Driver for SuperH Mobile CEU interface
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*
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* Copyright (C) 2008 Magnus Damm
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*
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* Based on V4L2 Driver for PXA camera host - "pxa_camera.c",
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*
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* Copyright (C) 2006, Sascha Hauer, Pengutronix
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* Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/io.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/interrupt.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/moduleparam.h>
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#include <linux/time.h>
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#include <linux/version.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 01:04:11 -07:00
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#include <linux/slab.h>
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2008-07-16 18:59:28 -07:00
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/videodev2.h>
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2009-08-14 03:49:17 -07:00
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#include <linux/pm_runtime.h>
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2009-11-09 12:11:34 -07:00
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#include <linux/sched.h>
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2008-07-16 18:59:28 -07:00
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#include <media/v4l2-common.h>
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#include <media/v4l2-dev.h>
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#include <media/soc_camera.h>
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#include <media/sh_mobile_ceu.h>
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#include <media/videobuf-dma-contig.h>
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2009-12-11 07:46:49 -07:00
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#include <media/v4l2-mediabus.h>
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#include <media/soc_mediabus.h>
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2008-07-16 18:59:28 -07:00
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/* register offsets for sh7722 / sh7723 */
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2008-10-16 15:50:22 -07:00
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#define CAPSR 0x00 /* Capture start register */
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#define CAPCR 0x04 /* Capture control register */
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#define CAMCR 0x08 /* Capture interface control register */
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#define CMCYR 0x0c /* Capture interface cycle register */
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#define CAMOR 0x10 /* Capture interface offset register */
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#define CAPWR 0x14 /* Capture interface width register */
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#define CAIFR 0x18 /* Capture interface input format register */
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#define CSTCR 0x20 /* Camera strobe control register (<= sh7722) */
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#define CSECR 0x24 /* Camera strobe emission count register (<= sh7722) */
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#define CRCNTR 0x28 /* CEU register control register */
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#define CRCMPR 0x2c /* CEU register forcible control register */
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#define CFLCR 0x30 /* Capture filter control register */
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#define CFSZR 0x34 /* Capture filter size clip register */
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#define CDWDR 0x38 /* Capture destination width register */
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#define CDAYR 0x3c /* Capture data address Y register */
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#define CDACR 0x40 /* Capture data address C register */
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#define CDBYR 0x44 /* Capture data bottom-field address Y register */
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#define CDBCR 0x48 /* Capture data bottom-field address C register */
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#define CBDSR 0x4c /* Capture bundle destination size register */
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#define CFWCR 0x5c /* Firewall operation control register */
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#define CLFCR 0x60 /* Capture low-pass filter control register */
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#define CDOCR 0x64 /* Capture data output control register */
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#define CDDCR 0x68 /* Capture data complexity level register */
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#define CDDAR 0x6c /* Capture data complexity level address register */
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#define CEIER 0x70 /* Capture event interrupt enable register */
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#define CETCR 0x74 /* Capture event flag clear register */
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#define CSTSR 0x7c /* Capture status register */
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#define CSRTR 0x80 /* Capture software reset register */
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#define CDSSR 0x84 /* Capture data size register */
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#define CDAYR2 0x90 /* Capture data address Y register 2 */
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#define CDACR2 0x94 /* Capture data address C register 2 */
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#define CDBYR2 0x98 /* Capture data bottom-field address Y register 2 */
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#define CDBCR2 0x9c /* Capture data bottom-field address C register 2 */
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2008-07-16 18:59:28 -07:00
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2009-08-25 07:50:46 -07:00
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#undef DEBUG_GEOMETRY
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#ifdef DEBUG_GEOMETRY
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#define dev_geo dev_info
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#else
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#define dev_geo dev_dbg
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#endif
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2008-07-16 18:59:28 -07:00
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/* per video frame buffer */
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struct sh_mobile_ceu_buffer {
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struct videobuf_buffer vb; /* v4l buffer must be first */
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2009-12-11 07:46:49 -07:00
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enum v4l2_mbus_pixelcode code;
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2008-07-16 18:59:28 -07:00
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};
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struct sh_mobile_ceu_dev {
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struct soc_camera_host ici;
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struct soc_camera_device *icd;
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unsigned int irq;
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void __iomem *base;
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unsigned long video_limit;
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2008-07-17 13:30:47 -07:00
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/* lock used to protect videobuf */
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2008-07-16 18:59:28 -07:00
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spinlock_t lock;
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struct list_head capture;
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struct videobuf_buffer *active;
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struct sh_mobile_ceu_info *pdata;
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2008-12-18 08:38:06 -07:00
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2009-08-25 07:46:54 -07:00
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u32 cflcr;
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2009-12-11 07:53:53 -07:00
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enum v4l2_field field;
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2009-08-25 07:46:52 -07:00
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unsigned int image_mode:1;
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unsigned int is_16bit:1;
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};
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struct sh_mobile_ceu_cam {
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2010-03-23 07:23:31 -07:00
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/* CEU offsets within scaled by the CEU camera output */
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unsigned int ceu_left;
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unsigned int ceu_top;
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/* Client output, as seen by the CEU */
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unsigned int width;
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unsigned int height;
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/*
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* User window from S_CROP / G_CROP, produced by client cropping and
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* scaling, CEU scaling and CEU cropping, mapped back onto the client
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* input window
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*/
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struct v4l2_rect subrect;
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/* Camera cropping rectangle */
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struct v4l2_rect rect;
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2009-12-11 07:46:49 -07:00
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const struct soc_mbus_pixelfmt *extra_fmt;
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enum v4l2_mbus_pixelcode code;
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2008-07-16 18:59:28 -07:00
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};
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2009-02-23 08:12:58 -07:00
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static unsigned long make_bus_param(struct sh_mobile_ceu_dev *pcdev)
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{
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unsigned long flags;
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flags = SOCAM_MASTER |
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SOCAM_PCLK_SAMPLE_RISING |
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SOCAM_HSYNC_ACTIVE_HIGH |
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SOCAM_HSYNC_ACTIVE_LOW |
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SOCAM_VSYNC_ACTIVE_HIGH |
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SOCAM_VSYNC_ACTIVE_LOW |
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SOCAM_DATA_ACTIVE_HIGH;
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if (pcdev->pdata->flags & SH_CEU_FLAG_USE_8BIT_BUS)
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flags |= SOCAM_DATAWIDTH_8;
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if (pcdev->pdata->flags & SH_CEU_FLAG_USE_16BIT_BUS)
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flags |= SOCAM_DATAWIDTH_16;
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if (flags & SOCAM_DATAWIDTH_MASK)
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return flags;
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return 0;
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}
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2008-07-16 18:59:28 -07:00
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static void ceu_write(struct sh_mobile_ceu_dev *priv,
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2008-12-18 08:50:30 -07:00
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unsigned long reg_offs, u32 data)
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2008-07-16 18:59:28 -07:00
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{
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iowrite32(data, priv->base + reg_offs);
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}
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2008-12-18 08:50:30 -07:00
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static u32 ceu_read(struct sh_mobile_ceu_dev *priv, unsigned long reg_offs)
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2008-07-16 18:59:28 -07:00
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{
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return ioread32(priv->base + reg_offs);
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}
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2009-10-05 08:48:20 -07:00
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static int sh_mobile_ceu_soft_reset(struct sh_mobile_ceu_dev *pcdev)
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{
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int i, success = 0;
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struct soc_camera_device *icd = pcdev->icd;
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ceu_write(pcdev, CAPSR, 1 << 16); /* reset */
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/* wait CSTSR.CPTON bit */
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for (i = 0; i < 1000; i++) {
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if (!(ceu_read(pcdev, CSTSR) & 1)) {
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success++;
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break;
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}
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udelay(1);
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}
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/* wait CAPSR.CPKIL bit */
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for (i = 0; i < 1000; i++) {
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if (!(ceu_read(pcdev, CAPSR) & (1 << 16))) {
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success++;
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break;
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}
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udelay(1);
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}
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if (2 != success) {
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dev_warn(&icd->dev, "soft reset time out\n");
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return -EIO;
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}
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return 0;
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}
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2008-07-16 18:59:28 -07:00
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/*
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* Videobuf operations
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*/
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static int sh_mobile_ceu_videobuf_setup(struct videobuf_queue *vq,
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unsigned int *count,
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unsigned int *size)
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{
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struct soc_camera_device *icd = vq->priv_data;
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struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
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struct sh_mobile_ceu_dev *pcdev = ici->priv;
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2009-12-11 07:46:49 -07:00
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int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
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icd->current_fmt->host_fmt);
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2008-07-16 18:59:28 -07:00
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2009-12-11 07:46:49 -07:00
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if (bytes_per_line < 0)
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return bytes_per_line;
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2009-12-11 07:53:56 -07:00
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*size = bytes_per_line * icd->user_height;
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2008-07-16 18:59:28 -07:00
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if (0 == *count)
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*count = 2;
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if (pcdev->video_limit) {
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2010-03-21 12:02:45 -07:00
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if (PAGE_ALIGN(*size) * *count > pcdev->video_limit)
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*count = pcdev->video_limit / PAGE_ALIGN(*size);
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2008-07-16 18:59:28 -07:00
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}
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2009-08-25 07:47:00 -07:00
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dev_dbg(icd->dev.parent, "count=%d, size=%d\n", *count, *size);
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2008-07-16 18:59:28 -07:00
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return 0;
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}
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static void free_buffer(struct videobuf_queue *vq,
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struct sh_mobile_ceu_buffer *buf)
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{
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struct soc_camera_device *icd = vq->priv_data;
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2009-08-25 07:50:46 -07:00
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struct device *dev = icd->dev.parent;
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2008-07-16 18:59:28 -07:00
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2009-08-25 07:50:46 -07:00
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dev_dbg(dev, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
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2008-07-16 18:59:28 -07:00
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&buf->vb, buf->vb.baddr, buf->vb.bsize);
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if (in_interrupt())
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BUG();
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2010-09-26 05:01:26 -07:00
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videobuf_waiton(vq, &buf->vb, 0, 0);
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2008-07-16 18:59:28 -07:00
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videobuf_dma_contig_free(vq, &buf->vb);
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2009-08-25 07:50:46 -07:00
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dev_dbg(dev, "%s freed\n", __func__);
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2008-07-16 18:59:28 -07:00
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buf->vb.state = VIDEOBUF_NEEDS_INIT;
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}
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2008-12-18 08:50:30 -07:00
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#define CEU_CETCR_MAGIC 0x0317f313 /* acknowledge magical interrupt sources */
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#define CEU_CETCR_IGRW (1 << 4) /* prohibited register access interrupt bit */
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#define CEU_CEIER_CPEIE (1 << 0) /* one-frame capture end interrupt */
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2009-10-05 08:48:59 -07:00
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#define CEU_CEIER_VBP (1 << 20) /* vbp error */
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2008-12-18 08:50:30 -07:00
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#define CEU_CAPCR_CTNCP (1 << 16) /* continuous capture mode (if set) */
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2009-10-05 08:48:59 -07:00
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#define CEU_CEIER_MASK (CEU_CEIER_CPEIE | CEU_CEIER_VBP)
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2008-12-18 08:50:30 -07:00
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2009-10-05 08:48:59 -07:00
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/*
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* return value doesn't reflex the success/failure to queue the new buffer,
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* but rather the status of the previous buffer.
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*/
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static int sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev)
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2008-07-16 18:59:28 -07:00
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{
|
2008-12-18 08:38:06 -07:00
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struct soc_camera_device *icd = pcdev->icd;
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2008-12-18 08:51:21 -07:00
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|
|
dma_addr_t phys_addr_top, phys_addr_bottom;
|
2009-12-11 07:53:53 -07:00
|
|
|
unsigned long top1, top2;
|
|
|
|
unsigned long bottom1, bottom2;
|
2009-10-05 08:48:59 -07:00
|
|
|
u32 status;
|
|
|
|
int ret = 0;
|
2008-12-18 08:50:30 -07:00
|
|
|
|
2009-12-11 07:15:05 -07:00
|
|
|
/*
|
|
|
|
* The hardware is _very_ picky about this sequence. Especially
|
2008-12-18 08:50:30 -07:00
|
|
|
* the CEU_CETCR_MAGIC value. It seems like we need to acknowledge
|
|
|
|
* several not-so-well documented interrupt sources in CETCR.
|
|
|
|
*/
|
2009-10-05 08:48:59 -07:00
|
|
|
ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) & ~CEU_CEIER_MASK);
|
|
|
|
status = ceu_read(pcdev, CETCR);
|
|
|
|
ceu_write(pcdev, CETCR, ~status & CEU_CETCR_MAGIC);
|
|
|
|
ceu_write(pcdev, CEIER, ceu_read(pcdev, CEIER) | CEU_CEIER_MASK);
|
2008-12-18 08:50:30 -07:00
|
|
|
ceu_write(pcdev, CAPCR, ceu_read(pcdev, CAPCR) & ~CEU_CAPCR_CTNCP);
|
|
|
|
ceu_write(pcdev, CETCR, CEU_CETCR_MAGIC ^ CEU_CETCR_IGRW);
|
2008-07-16 18:59:28 -07:00
|
|
|
|
2009-10-05 08:48:59 -07:00
|
|
|
/*
|
|
|
|
* When a VBP interrupt occurs, a capture end interrupt does not occur
|
|
|
|
* and the image of that frame is not captured correctly. So, soft reset
|
|
|
|
* is needed here.
|
|
|
|
*/
|
|
|
|
if (status & CEU_CEIER_VBP) {
|
|
|
|
sh_mobile_ceu_soft_reset(pcdev);
|
|
|
|
ret = -EIO;
|
|
|
|
}
|
|
|
|
|
2008-12-18 08:38:06 -07:00
|
|
|
if (!pcdev->active)
|
2009-10-05 08:48:59 -07:00
|
|
|
return ret;
|
2008-12-18 08:38:06 -07:00
|
|
|
|
2009-12-11 07:53:53 -07:00
|
|
|
if (V4L2_FIELD_INTERLACED_BT == pcdev->field) {
|
|
|
|
top1 = CDBYR;
|
|
|
|
top2 = CDBCR;
|
|
|
|
bottom1 = CDAYR;
|
|
|
|
bottom2 = CDACR;
|
|
|
|
} else {
|
|
|
|
top1 = CDAYR;
|
|
|
|
top2 = CDACR;
|
|
|
|
bottom1 = CDBYR;
|
|
|
|
bottom2 = CDBCR;
|
|
|
|
}
|
|
|
|
|
2008-12-18 08:51:21 -07:00
|
|
|
phys_addr_top = videobuf_to_dma_contig(pcdev->active);
|
2009-12-11 07:53:53 -07:00
|
|
|
ceu_write(pcdev, top1, phys_addr_top);
|
|
|
|
if (V4L2_FIELD_NONE != pcdev->field) {
|
2009-08-25 07:50:46 -07:00
|
|
|
phys_addr_bottom = phys_addr_top + icd->user_width;
|
2009-12-11 07:53:53 -07:00
|
|
|
ceu_write(pcdev, bottom1, phys_addr_bottom);
|
2008-12-18 08:51:21 -07:00
|
|
|
}
|
2008-12-18 08:38:06 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
switch (icd->current_fmt->host_fmt->fourcc) {
|
2008-12-18 08:38:06 -07:00
|
|
|
case V4L2_PIX_FMT_NV12:
|
|
|
|
case V4L2_PIX_FMT_NV21:
|
2008-12-18 08:45:33 -07:00
|
|
|
case V4L2_PIX_FMT_NV16:
|
|
|
|
case V4L2_PIX_FMT_NV61:
|
2009-08-25 07:50:46 -07:00
|
|
|
phys_addr_top += icd->user_width *
|
|
|
|
icd->user_height;
|
2009-12-11 07:53:53 -07:00
|
|
|
ceu_write(pcdev, top2, phys_addr_top);
|
|
|
|
if (V4L2_FIELD_NONE != pcdev->field) {
|
|
|
|
phys_addr_bottom = phys_addr_top + icd->user_width;
|
|
|
|
ceu_write(pcdev, bottom2, phys_addr_bottom);
|
2008-12-18 08:51:21 -07:00
|
|
|
}
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
2008-12-18 08:38:06 -07:00
|
|
|
|
|
|
|
pcdev->active->state = VIDEOBUF_ACTIVE;
|
|
|
|
ceu_write(pcdev, CAPSR, 0x1); /* start capture */
|
2009-10-05 08:48:59 -07:00
|
|
|
|
|
|
|
return ret;
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int sh_mobile_ceu_videobuf_prepare(struct videobuf_queue *vq,
|
|
|
|
struct videobuf_buffer *vb,
|
|
|
|
enum v4l2_field field)
|
|
|
|
{
|
|
|
|
struct soc_camera_device *icd = vq->priv_data;
|
|
|
|
struct sh_mobile_ceu_buffer *buf;
|
2009-12-11 07:46:49 -07:00
|
|
|
int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
|
|
|
|
icd->current_fmt->host_fmt);
|
2008-07-16 18:59:28 -07:00
|
|
|
int ret;
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
if (bytes_per_line < 0)
|
|
|
|
return bytes_per_line;
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
buf = container_of(vb, struct sh_mobile_ceu_buffer, vb);
|
|
|
|
|
2009-08-25 07:47:00 -07:00
|
|
|
dev_dbg(icd->dev.parent, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
|
2008-07-16 18:59:28 -07:00
|
|
|
vb, vb->baddr, vb->bsize);
|
|
|
|
|
|
|
|
/* Added list head initialization on alloc */
|
|
|
|
WARN_ON(!list_empty(&vb->queue));
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
2009-12-11 07:15:05 -07:00
|
|
|
/*
|
|
|
|
* This can be useful if you want to see if we actually fill
|
|
|
|
* the buffer with something
|
|
|
|
*/
|
2008-07-16 18:59:28 -07:00
|
|
|
memset((void *)vb->baddr, 0xaa, vb->bsize);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
BUG_ON(NULL == icd->current_fmt);
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
if (buf->code != icd->current_fmt->code ||
|
2009-08-25 07:50:46 -07:00
|
|
|
vb->width != icd->user_width ||
|
|
|
|
vb->height != icd->user_height ||
|
2008-07-16 18:59:28 -07:00
|
|
|
vb->field != field) {
|
2009-12-11 07:46:49 -07:00
|
|
|
buf->code = icd->current_fmt->code;
|
2009-08-25 07:50:46 -07:00
|
|
|
vb->width = icd->user_width;
|
|
|
|
vb->height = icd->user_height;
|
2008-07-16 18:59:28 -07:00
|
|
|
vb->field = field;
|
|
|
|
vb->state = VIDEOBUF_NEEDS_INIT;
|
|
|
|
}
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
vb->size = vb->height * bytes_per_line;
|
2008-07-16 18:59:28 -07:00
|
|
|
if (0 != vb->baddr && vb->bsize < vb->size) {
|
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (vb->state == VIDEOBUF_NEEDS_INIT) {
|
|
|
|
ret = videobuf_iolock(vq, vb, NULL);
|
|
|
|
if (ret)
|
|
|
|
goto fail;
|
|
|
|
vb->state = VIDEOBUF_PREPARED;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
|
|
free_buffer(vq, buf);
|
|
|
|
out:
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2009-08-05 16:06:31 -07:00
|
|
|
/* Called under spinlock_irqsave(&pcdev->lock, ...) */
|
2008-07-16 18:59:28 -07:00
|
|
|
static void sh_mobile_ceu_videobuf_queue(struct videobuf_queue *vq,
|
|
|
|
struct videobuf_buffer *vb)
|
|
|
|
{
|
|
|
|
struct soc_camera_device *icd = vq->priv_data;
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
|
|
|
|
2009-08-25 07:47:00 -07:00
|
|
|
dev_dbg(icd->dev.parent, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
|
2008-07-16 18:59:28 -07:00
|
|
|
vb, vb->baddr, vb->bsize);
|
|
|
|
|
2008-10-16 15:51:20 -07:00
|
|
|
vb->state = VIDEOBUF_QUEUED;
|
2008-07-16 18:59:28 -07:00
|
|
|
list_add_tail(&vb->queue, &pcdev->capture);
|
|
|
|
|
|
|
|
if (!pcdev->active) {
|
2009-10-05 08:48:59 -07:00
|
|
|
/*
|
|
|
|
* Because there were no active buffer at this moment,
|
|
|
|
* we are not interested in the return value of
|
|
|
|
* sh_mobile_ceu_capture here.
|
|
|
|
*/
|
2008-07-16 18:59:28 -07:00
|
|
|
pcdev->active = vb;
|
|
|
|
sh_mobile_ceu_capture(pcdev);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void sh_mobile_ceu_videobuf_release(struct videobuf_queue *vq,
|
|
|
|
struct videobuf_buffer *vb)
|
|
|
|
{
|
2009-08-25 07:46:51 -07:00
|
|
|
struct soc_camera_device *icd = vq->priv_data;
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&pcdev->lock, flags);
|
|
|
|
|
|
|
|
if (pcdev->active == vb) {
|
|
|
|
/* disable capture (release DMA buffer), reset */
|
|
|
|
ceu_write(pcdev, CAPSR, 1 << 16);
|
|
|
|
pcdev->active = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((vb->state == VIDEOBUF_ACTIVE || vb->state == VIDEOBUF_QUEUED) &&
|
|
|
|
!list_empty(&vb->queue)) {
|
|
|
|
vb->state = VIDEOBUF_ERROR;
|
|
|
|
list_del_init(&vb->queue);
|
|
|
|
}
|
|
|
|
|
|
|
|
spin_unlock_irqrestore(&pcdev->lock, flags);
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
free_buffer(vq, container_of(vb, struct sh_mobile_ceu_buffer, vb));
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct videobuf_queue_ops sh_mobile_ceu_videobuf_ops = {
|
|
|
|
.buf_setup = sh_mobile_ceu_videobuf_setup,
|
|
|
|
.buf_prepare = sh_mobile_ceu_videobuf_prepare,
|
|
|
|
.buf_queue = sh_mobile_ceu_videobuf_queue,
|
|
|
|
.buf_release = sh_mobile_ceu_videobuf_release,
|
|
|
|
};
|
|
|
|
|
|
|
|
static irqreturn_t sh_mobile_ceu_irq(int irq, void *data)
|
|
|
|
{
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = data;
|
|
|
|
struct videobuf_buffer *vb;
|
|
|
|
unsigned long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&pcdev->lock, flags);
|
|
|
|
|
|
|
|
vb = pcdev->active;
|
2009-08-25 07:46:51 -07:00
|
|
|
if (!vb)
|
|
|
|
/* Stale interrupt from a released buffer */
|
|
|
|
goto out;
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
list_del_init(&vb->queue);
|
|
|
|
|
|
|
|
if (!list_empty(&pcdev->capture))
|
|
|
|
pcdev->active = list_entry(pcdev->capture.next,
|
|
|
|
struct videobuf_buffer, queue);
|
|
|
|
else
|
|
|
|
pcdev->active = NULL;
|
|
|
|
|
2009-10-05 08:48:59 -07:00
|
|
|
vb->state = (sh_mobile_ceu_capture(pcdev) < 0) ?
|
|
|
|
VIDEOBUF_ERROR : VIDEOBUF_DONE;
|
2008-07-16 18:59:28 -07:00
|
|
|
do_gettimeofday(&vb->ts);
|
|
|
|
vb->field_count++;
|
|
|
|
wake_up(&vb->done);
|
2009-08-25 07:46:51 -07:00
|
|
|
|
|
|
|
out:
|
2008-07-16 18:59:28 -07:00
|
|
|
spin_unlock_irqrestore(&pcdev->lock, flags);
|
|
|
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
2008-12-18 08:28:54 -07:00
|
|
|
/* Called with .video_lock held */
|
2008-07-16 18:59:28 -07:00
|
|
|
static int sh_mobile_ceu_add_device(struct soc_camera_device *icd)
|
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
2009-12-11 07:15:06 -07:00
|
|
|
int ret;
|
2008-07-16 18:59:28 -07:00
|
|
|
|
|
|
|
if (pcdev->icd)
|
2009-08-25 07:43:33 -07:00
|
|
|
return -EBUSY;
|
2008-07-16 18:59:28 -07:00
|
|
|
|
2009-08-25 07:47:00 -07:00
|
|
|
dev_info(icd->dev.parent,
|
2008-07-16 18:59:28 -07:00
|
|
|
"SuperH Mobile CEU driver attached to camera %d\n",
|
|
|
|
icd->devnum);
|
|
|
|
|
2009-09-24 21:36:51 -07:00
|
|
|
pm_runtime_get_sync(ici->v4l2_dev.dev);
|
2009-08-25 07:28:22 -07:00
|
|
|
|
2009-12-11 07:15:06 -07:00
|
|
|
ret = sh_mobile_ceu_soft_reset(pcdev);
|
|
|
|
if (!ret)
|
|
|
|
pcdev->icd = icd;
|
2009-08-25 07:43:33 -07:00
|
|
|
|
2009-12-11 07:15:06 -07:00
|
|
|
return ret;
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
|
|
|
|
2008-12-18 08:28:54 -07:00
|
|
|
/* Called with .video_lock held */
|
2008-07-16 18:59:28 -07:00
|
|
|
static void sh_mobile_ceu_remove_device(struct soc_camera_device *icd)
|
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
2008-10-16 15:51:20 -07:00
|
|
|
unsigned long flags;
|
2008-07-16 18:59:28 -07:00
|
|
|
|
|
|
|
BUG_ON(icd != pcdev->icd);
|
|
|
|
|
|
|
|
/* disable capture, disable interrupts */
|
|
|
|
ceu_write(pcdev, CEIER, 0);
|
2009-10-05 08:48:20 -07:00
|
|
|
sh_mobile_ceu_soft_reset(pcdev);
|
2008-10-16 15:51:20 -07:00
|
|
|
|
|
|
|
/* make sure active buffer is canceled */
|
|
|
|
spin_lock_irqsave(&pcdev->lock, flags);
|
|
|
|
if (pcdev->active) {
|
|
|
|
list_del(&pcdev->active->queue);
|
|
|
|
pcdev->active->state = VIDEOBUF_ERROR;
|
|
|
|
wake_up_all(&pcdev->active->done);
|
|
|
|
pcdev->active = NULL;
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&pcdev->lock, flags);
|
|
|
|
|
2009-09-24 21:36:51 -07:00
|
|
|
pm_runtime_put_sync(ici->v4l2_dev.dev);
|
2009-08-25 07:28:22 -07:00
|
|
|
|
2009-08-25 07:47:00 -07:00
|
|
|
dev_info(icd->dev.parent,
|
2008-07-16 18:59:28 -07:00
|
|
|
"SuperH Mobile CEU driver detached from camera %d\n",
|
|
|
|
icd->devnum);
|
|
|
|
|
|
|
|
pcdev->icd = NULL;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
/*
|
|
|
|
* See chapter 29.4.12 "Capture Filter Control Register (CFLCR)"
|
|
|
|
* in SH7722 Hardware Manual
|
|
|
|
*/
|
|
|
|
static unsigned int size_dst(unsigned int src, unsigned int scale)
|
|
|
|
{
|
|
|
|
unsigned int mant_pre = scale >> 12;
|
|
|
|
if (!src || !scale)
|
|
|
|
return src;
|
|
|
|
return ((mant_pre + 2 * (src - 1)) / (2 * mant_pre) - 1) *
|
|
|
|
mant_pre * 4096 / scale + 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static u16 calc_scale(unsigned int src, unsigned int *dst)
|
|
|
|
{
|
|
|
|
u16 scale;
|
|
|
|
|
|
|
|
if (src == *dst)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
scale = (src * 4096 / *dst) & ~7;
|
|
|
|
|
|
|
|
while (scale > 4096 && size_dst(src, scale) < *dst)
|
|
|
|
scale -= 8;
|
|
|
|
|
|
|
|
*dst = size_dst(src, scale);
|
|
|
|
|
|
|
|
return scale;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* rect is guaranteed to not exceed the scaled camera rectangle */
|
2010-03-23 07:23:31 -07:00
|
|
|
static void sh_mobile_ceu_set_rect(struct soc_camera_device *icd)
|
2009-08-25 07:46:52 -07:00
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
2009-08-25 07:50:46 -07:00
|
|
|
unsigned int height, width, cdwdr_width, in_width, in_height;
|
|
|
|
unsigned int left_offset, top_offset;
|
2009-08-25 07:46:52 -07:00
|
|
|
u32 camor;
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(icd->dev.parent, "Crop %ux%u@%u:%u\n",
|
|
|
|
icd->user_width, icd->user_height, cam->ceu_left, cam->ceu_top);
|
2009-08-25 07:46:52 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
left_offset = cam->ceu_left;
|
|
|
|
top_offset = cam->ceu_top;
|
2009-08-25 07:46:52 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* CEU cropping (CFSZR) is applied _after_ the scaling filter (CFLCR) */
|
2009-08-25 07:46:52 -07:00
|
|
|
if (pcdev->image_mode) {
|
2010-03-23 07:23:31 -07:00
|
|
|
in_width = cam->width;
|
2009-08-25 07:46:54 -07:00
|
|
|
if (!pcdev->is_16bit) {
|
|
|
|
in_width *= 2;
|
|
|
|
left_offset *= 2;
|
|
|
|
}
|
2010-03-23 07:23:31 -07:00
|
|
|
width = icd->user_width;
|
|
|
|
cdwdr_width = icd->user_width;
|
2009-08-25 07:46:52 -07:00
|
|
|
} else {
|
2010-03-23 07:23:31 -07:00
|
|
|
int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
|
2009-12-11 07:46:49 -07:00
|
|
|
icd->current_fmt->host_fmt);
|
|
|
|
unsigned int w_factor;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
width = icd->user_width;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
switch (icd->current_fmt->host_fmt->packing) {
|
|
|
|
case SOC_MBUS_PACKING_2X8_PADHI:
|
|
|
|
w_factor = 2;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
w_factor = 1;
|
|
|
|
}
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
in_width = cam->width * w_factor;
|
2009-12-11 07:46:49 -07:00
|
|
|
left_offset = left_offset * w_factor;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
if (bytes_per_line < 0)
|
2010-03-23 07:23:31 -07:00
|
|
|
cdwdr_width = icd->user_width;
|
2009-12-11 07:46:49 -07:00
|
|
|
else
|
|
|
|
cdwdr_width = bytes_per_line;
|
2009-08-25 07:46:52 -07:00
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
height = icd->user_height;
|
|
|
|
in_height = cam->height;
|
2009-12-11 07:53:53 -07:00
|
|
|
if (V4L2_FIELD_NONE != pcdev->field) {
|
2009-08-25 07:46:52 -07:00
|
|
|
height /= 2;
|
2009-08-25 07:46:54 -07:00
|
|
|
in_height /= 2;
|
|
|
|
top_offset /= 2;
|
2009-08-25 07:46:52 -07:00
|
|
|
cdwdr_width *= 2;
|
|
|
|
}
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
/* CSI2 special configuration */
|
|
|
|
if (pcdev->pdata->csi2_dev) {
|
|
|
|
in_width = ((in_width - 2) * 2);
|
|
|
|
left_offset *= 2;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/* Set CAMOR, CAPWR, CFSZR, take care of CDWDR */
|
2009-08-25 07:46:52 -07:00
|
|
|
camor = left_offset | (top_offset << 16);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
|
|
|
dev_geo(icd->dev.parent,
|
|
|
|
"CAMOR 0x%x, CAPWR 0x%x, CFSZR 0x%x, CDWDR 0x%x\n", camor,
|
|
|
|
(in_height << 16) | in_width, (height << 16) | width,
|
|
|
|
cdwdr_width);
|
|
|
|
|
2009-08-25 07:46:52 -07:00
|
|
|
ceu_write(pcdev, CAMOR, camor);
|
2009-08-25 07:46:54 -07:00
|
|
|
ceu_write(pcdev, CAPWR, (in_height << 16) | in_width);
|
2009-08-25 07:50:46 -07:00
|
|
|
ceu_write(pcdev, CFSZR, (height << 16) | width);
|
2009-08-25 07:46:52 -07:00
|
|
|
ceu_write(pcdev, CDWDR, cdwdr_width);
|
|
|
|
}
|
|
|
|
|
|
|
|
static u32 capture_save_reset(struct sh_mobile_ceu_dev *pcdev)
|
|
|
|
{
|
|
|
|
u32 capsr = ceu_read(pcdev, CAPSR);
|
|
|
|
ceu_write(pcdev, CAPSR, 1 << 16); /* reset, stop capture */
|
|
|
|
return capsr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void capture_restore(struct sh_mobile_ceu_dev *pcdev, u32 capsr)
|
|
|
|
{
|
|
|
|
unsigned long timeout = jiffies + 10 * HZ;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Wait until the end of the current frame. It can take a long time,
|
|
|
|
* but if it has been aborted by a CAPSR reset, it shoule exit sooner.
|
|
|
|
*/
|
|
|
|
while ((ceu_read(pcdev, CSTSR) & 1) && time_before(jiffies, timeout))
|
|
|
|
msleep(1);
|
|
|
|
|
|
|
|
if (time_after(jiffies, timeout)) {
|
|
|
|
dev_err(pcdev->ici.v4l2_dev.dev,
|
|
|
|
"Timeout waiting for frame end! Interface problem?\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Wait until reset clears, this shall not hang... */
|
|
|
|
while (ceu_read(pcdev, CAPSR) & (1 << 16))
|
|
|
|
udelay(10);
|
|
|
|
|
|
|
|
/* Anything to restore? */
|
|
|
|
if (capsr & ~(1 << 16))
|
|
|
|
ceu_write(pcdev, CAPSR, capsr);
|
|
|
|
}
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd,
|
|
|
|
__u32 pixfmt)
|
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
2009-08-25 07:46:52 -07:00
|
|
|
int ret;
|
2008-07-16 18:59:28 -07:00
|
|
|
unsigned long camera_flags, common_flags, value;
|
2009-08-25 07:46:52 -07:00
|
|
|
int yuv_lineskip;
|
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
|
|
|
u32 capsr = capture_save_reset(pcdev);
|
2008-07-16 18:59:28 -07:00
|
|
|
|
|
|
|
camera_flags = icd->ops->query_bus_param(icd);
|
|
|
|
common_flags = soc_camera_bus_param_compatible(camera_flags,
|
2009-02-23 08:12:58 -07:00
|
|
|
make_bus_param(pcdev));
|
2008-07-16 18:59:28 -07:00
|
|
|
if (!common_flags)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-12-11 07:53:54 -07:00
|
|
|
/* Make choises, based on platform preferences */
|
|
|
|
if ((common_flags & SOCAM_HSYNC_ACTIVE_HIGH) &&
|
|
|
|
(common_flags & SOCAM_HSYNC_ACTIVE_LOW)) {
|
|
|
|
if (pcdev->pdata->flags & SH_CEU_FLAG_HSYNC_LOW)
|
|
|
|
common_flags &= ~SOCAM_HSYNC_ACTIVE_HIGH;
|
|
|
|
else
|
|
|
|
common_flags &= ~SOCAM_HSYNC_ACTIVE_LOW;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((common_flags & SOCAM_VSYNC_ACTIVE_HIGH) &&
|
|
|
|
(common_flags & SOCAM_VSYNC_ACTIVE_LOW)) {
|
|
|
|
if (pcdev->pdata->flags & SH_CEU_FLAG_VSYNC_LOW)
|
|
|
|
common_flags &= ~SOCAM_VSYNC_ACTIVE_HIGH;
|
|
|
|
else
|
|
|
|
common_flags &= ~SOCAM_VSYNC_ACTIVE_LOW;
|
|
|
|
}
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
ret = icd->ops->set_bus_param(icd, common_flags);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
switch (common_flags & SOCAM_DATAWIDTH_MASK) {
|
|
|
|
case SOCAM_DATAWIDTH_8:
|
2009-08-25 07:46:52 -07:00
|
|
|
pcdev->is_16bit = 0;
|
2008-07-16 18:59:28 -07:00
|
|
|
break;
|
|
|
|
case SOCAM_DATAWIDTH_16:
|
2009-08-25 07:46:52 -07:00
|
|
|
pcdev->is_16bit = 1;
|
2008-07-16 18:59:28 -07:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
ceu_write(pcdev, CRCNTR, 0);
|
|
|
|
ceu_write(pcdev, CRCMPR, 0);
|
|
|
|
|
2008-12-18 08:38:06 -07:00
|
|
|
value = 0x00000010; /* data fetch by default */
|
2009-08-25 07:46:54 -07:00
|
|
|
yuv_lineskip = 0;
|
2008-12-18 08:38:06 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
switch (icd->current_fmt->host_fmt->fourcc) {
|
2008-12-18 08:38:06 -07:00
|
|
|
case V4L2_PIX_FMT_NV12:
|
|
|
|
case V4L2_PIX_FMT_NV21:
|
|
|
|
yuv_lineskip = 1; /* skip for NV12/21, no skip for NV16/61 */
|
2008-12-18 08:45:33 -07:00
|
|
|
/* fall-through */
|
|
|
|
case V4L2_PIX_FMT_NV16:
|
|
|
|
case V4L2_PIX_FMT_NV61:
|
2009-12-11 07:46:49 -07:00
|
|
|
switch (cam->code) {
|
2010-07-22 12:52:51 -07:00
|
|
|
case V4L2_MBUS_FMT_UYVY8_2X8:
|
2008-12-18 08:38:06 -07:00
|
|
|
value = 0x00000000; /* Cb0, Y0, Cr0, Y1 */
|
|
|
|
break;
|
2010-07-22 12:52:51 -07:00
|
|
|
case V4L2_MBUS_FMT_VYUY8_2X8:
|
2008-12-18 08:38:06 -07:00
|
|
|
value = 0x00000100; /* Cr0, Y0, Cb0, Y1 */
|
|
|
|
break;
|
2010-07-22 12:52:51 -07:00
|
|
|
case V4L2_MBUS_FMT_YUYV8_2X8:
|
2008-12-18 08:38:06 -07:00
|
|
|
value = 0x00000200; /* Y0, Cb0, Y1, Cr0 */
|
|
|
|
break;
|
2010-07-22 12:52:51 -07:00
|
|
|
case V4L2_MBUS_FMT_YVYU8_2X8:
|
2008-12-18 08:38:06 -07:00
|
|
|
value = 0x00000300; /* Y0, Cr0, Y1, Cb0 */
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
BUG();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
if (icd->current_fmt->host_fmt->fourcc == V4L2_PIX_FMT_NV21 ||
|
|
|
|
icd->current_fmt->host_fmt->fourcc == V4L2_PIX_FMT_NV61)
|
2008-12-18 08:45:33 -07:00
|
|
|
value ^= 0x00000100; /* swap U, V to change from NV1x->NVx1 */
|
2008-12-18 08:38:06 -07:00
|
|
|
|
2008-12-18 08:50:30 -07:00
|
|
|
value |= common_flags & SOCAM_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
|
|
|
|
value |= common_flags & SOCAM_HSYNC_ACTIVE_LOW ? 1 << 0 : 0;
|
2009-08-25 07:46:52 -07:00
|
|
|
value |= pcdev->is_16bit ? 1 << 12 : 0;
|
2010-07-26 08:13:34 -07:00
|
|
|
|
|
|
|
/* CSI2 mode */
|
|
|
|
if (pcdev->pdata->csi2_dev)
|
|
|
|
value |= 3 << 12;
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
ceu_write(pcdev, CAMCR, value);
|
|
|
|
|
|
|
|
ceu_write(pcdev, CAPCR, 0x00300000);
|
2009-12-11 07:53:53 -07:00
|
|
|
|
|
|
|
switch (pcdev->field) {
|
|
|
|
case V4L2_FIELD_INTERLACED_TB:
|
|
|
|
value = 0x101;
|
|
|
|
break;
|
|
|
|
case V4L2_FIELD_INTERLACED_BT:
|
|
|
|
value = 0x102;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
value = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
ceu_write(pcdev, CAIFR, value);
|
2008-07-16 18:59:28 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
sh_mobile_ceu_set_rect(icd);
|
2008-07-16 18:59:28 -07:00
|
|
|
mdelay(1);
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(icd->dev.parent, "CFLCR 0x%x\n", pcdev->cflcr);
|
2009-08-25 07:46:54 -07:00
|
|
|
ceu_write(pcdev, CFLCR, pcdev->cflcr);
|
2008-10-16 15:50:22 -07:00
|
|
|
|
2009-12-11 07:15:05 -07:00
|
|
|
/*
|
|
|
|
* A few words about byte order (observed in Big Endian mode)
|
2008-10-16 15:50:22 -07:00
|
|
|
*
|
|
|
|
* In data fetch mode bytes are received in chunks of 8 bytes.
|
|
|
|
* D0, D1, D2, D3, D4, D5, D6, D7 (D0 received first)
|
|
|
|
*
|
|
|
|
* The data is however by default written to memory in reverse order:
|
|
|
|
* D7, D6, D5, D4, D3, D2, D1, D0 (D7 written to lowest byte)
|
|
|
|
*
|
|
|
|
* The lowest three bits of CDOCR allows us to do swapping,
|
2008-10-16 15:50:56 -07:00
|
|
|
* using 7 we swap the data bytes to match the incoming order:
|
|
|
|
* D0, D1, D2, D3, D4, D5, D6, D7
|
2008-10-16 15:50:22 -07:00
|
|
|
*/
|
2008-12-18 08:38:06 -07:00
|
|
|
value = 0x00000017;
|
|
|
|
if (yuv_lineskip)
|
|
|
|
value &= ~0x00000010; /* convert 4:2:2 -> 4:2:0 */
|
|
|
|
|
|
|
|
ceu_write(pcdev, CDOCR, value);
|
2008-07-16 18:59:28 -07:00
|
|
|
ceu_write(pcdev, CFWCR, 0); /* keep "datafetch firewall" disabled */
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
dev_dbg(icd->dev.parent, "S_FMT successful for %c%c%c%c %ux%u\n",
|
2009-08-25 07:46:52 -07:00
|
|
|
pixfmt & 0xff, (pixfmt >> 8) & 0xff,
|
|
|
|
(pixfmt >> 16) & 0xff, (pixfmt >> 24) & 0xff,
|
2009-08-25 07:50:46 -07:00
|
|
|
icd->user_width, icd->user_height);
|
2009-08-25 07:46:52 -07:00
|
|
|
|
|
|
|
capture_restore(pcdev, capsr);
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
/* not in bundle mode: skip CBDSR, CDAYR2, CDACR2, CDBYR2, CDBCR2 */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
static int sh_mobile_ceu_try_bus_param(struct soc_camera_device *icd,
|
|
|
|
unsigned char buswidth)
|
2008-07-16 18:59:28 -07:00
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
|
|
|
unsigned long camera_flags, common_flags;
|
|
|
|
|
|
|
|
camera_flags = icd->ops->query_bus_param(icd);
|
|
|
|
common_flags = soc_camera_bus_param_compatible(camera_flags,
|
2009-02-23 08:12:58 -07:00
|
|
|
make_bus_param(pcdev));
|
2009-12-11 07:46:49 -07:00
|
|
|
if (!common_flags || buswidth > 16 ||
|
|
|
|
(buswidth > 8 && !(common_flags & SOCAM_DATAWIDTH_16)))
|
2008-07-16 18:59:28 -07:00
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
static const struct soc_mbus_pixelfmt sh_mobile_ceu_formats[] = {
|
2008-12-18 08:45:33 -07:00
|
|
|
{
|
2009-12-11 07:46:49 -07:00
|
|
|
.fourcc = V4L2_PIX_FMT_NV12,
|
|
|
|
.name = "NV12",
|
|
|
|
.bits_per_sample = 12,
|
|
|
|
.packing = SOC_MBUS_PACKING_NONE,
|
|
|
|
.order = SOC_MBUS_ORDER_LE,
|
|
|
|
}, {
|
|
|
|
.fourcc = V4L2_PIX_FMT_NV21,
|
|
|
|
.name = "NV21",
|
|
|
|
.bits_per_sample = 12,
|
|
|
|
.packing = SOC_MBUS_PACKING_NONE,
|
|
|
|
.order = SOC_MBUS_ORDER_LE,
|
|
|
|
}, {
|
|
|
|
.fourcc = V4L2_PIX_FMT_NV16,
|
|
|
|
.name = "NV16",
|
|
|
|
.bits_per_sample = 16,
|
|
|
|
.packing = SOC_MBUS_PACKING_NONE,
|
|
|
|
.order = SOC_MBUS_ORDER_LE,
|
|
|
|
}, {
|
|
|
|
.fourcc = V4L2_PIX_FMT_NV61,
|
|
|
|
.name = "NV61",
|
|
|
|
.bits_per_sample = 16,
|
|
|
|
.packing = SOC_MBUS_PACKING_NONE,
|
|
|
|
.order = SOC_MBUS_ORDER_LE,
|
2008-12-18 08:45:33 -07:00
|
|
|
},
|
2008-12-18 08:38:06 -07:00
|
|
|
};
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
/* This will be corrected as we get more formats */
|
|
|
|
static bool sh_mobile_ceu_packing_supported(const struct soc_mbus_pixelfmt *fmt)
|
|
|
|
{
|
|
|
|
return fmt->packing == SOC_MBUS_PACKING_NONE ||
|
|
|
|
(fmt->bits_per_sample == 8 &&
|
|
|
|
fmt->packing == SOC_MBUS_PACKING_2X8_PADHI) ||
|
|
|
|
(fmt->bits_per_sample > 8 &&
|
|
|
|
fmt->packing == SOC_MBUS_PACKING_EXTEND16);
|
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
static int client_g_rect(struct v4l2_subdev *sd, struct v4l2_rect *rect);
|
|
|
|
|
2010-05-08 13:55:00 -07:00
|
|
|
static int sh_mobile_ceu_get_formats(struct soc_camera_device *icd, unsigned int idx,
|
2008-12-18 07:49:06 -07:00
|
|
|
struct soc_camera_format_xlate *xlate)
|
|
|
|
{
|
2009-12-11 07:46:49 -07:00
|
|
|
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
|
2009-08-25 07:50:46 -07:00
|
|
|
struct device *dev = icd->dev.parent;
|
2010-07-26 08:13:34 -07:00
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(dev);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
2008-12-18 08:38:06 -07:00
|
|
|
int ret, k, n;
|
2008-12-18 07:49:06 -07:00
|
|
|
int formats = 0;
|
2009-08-25 07:46:52 -07:00
|
|
|
struct sh_mobile_ceu_cam *cam;
|
2009-12-11 07:46:49 -07:00
|
|
|
enum v4l2_mbus_pixelcode code;
|
|
|
|
const struct soc_mbus_pixelfmt *fmt;
|
2008-12-18 07:49:06 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
ret = v4l2_subdev_call(sd, video, enum_mbus_fmt, idx, &code);
|
|
|
|
if (ret < 0)
|
|
|
|
/* No more formats */
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
fmt = soc_mbus_get_fmtdesc(code);
|
|
|
|
if (!fmt) {
|
2010-07-26 08:13:34 -07:00
|
|
|
dev_err(dev, "Invalid format code #%u: %d\n", idx, code);
|
2009-12-11 07:46:49 -07:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
if (!pcdev->pdata->csi2_dev) {
|
|
|
|
ret = sh_mobile_ceu_try_bus_param(icd, fmt->bits_per_sample);
|
|
|
|
if (ret < 0)
|
|
|
|
return 0;
|
|
|
|
}
|
2008-12-18 07:49:06 -07:00
|
|
|
|
2009-08-25 07:46:52 -07:00
|
|
|
if (!icd->host_priv) {
|
2010-03-23 07:23:31 -07:00
|
|
|
struct v4l2_mbus_framefmt mf;
|
|
|
|
struct v4l2_rect rect;
|
|
|
|
int shift = 0;
|
|
|
|
|
|
|
|
/* FIXME: subwindow is lost between close / open */
|
|
|
|
|
|
|
|
/* Cache current client geometry */
|
|
|
|
ret = client_g_rect(sd, &rect);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
/* First time */
|
|
|
|
ret = v4l2_subdev_call(sd, video, g_mbus_fmt, &mf);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
while ((mf.width > 2560 || mf.height > 1920) && shift < 4) {
|
|
|
|
/* Try 2560x1920, 1280x960, 640x480, 320x240 */
|
|
|
|
mf.width = 2560 >> shift;
|
|
|
|
mf.height = 1920 >> shift;
|
2010-07-26 08:13:34 -07:00
|
|
|
ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
|
|
|
|
s_mbus_fmt, &mf);
|
2010-03-23 07:23:31 -07:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
shift++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (shift == 4) {
|
|
|
|
dev_err(dev, "Failed to configure the client below %ux%x\n",
|
|
|
|
mf.width, mf.height);
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_geo(dev, "camera fmt %ux%u\n", mf.width, mf.height);
|
|
|
|
|
2009-08-25 07:46:52 -07:00
|
|
|
cam = kzalloc(sizeof(*cam), GFP_KERNEL);
|
|
|
|
if (!cam)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* We are called with current camera crop, initialise subrect with it */
|
|
|
|
cam->rect = rect;
|
|
|
|
cam->subrect = rect;
|
|
|
|
|
|
|
|
cam->width = mf.width;
|
|
|
|
cam->height = mf.height;
|
|
|
|
|
|
|
|
cam->width = mf.width;
|
|
|
|
cam->height = mf.height;
|
|
|
|
|
2009-08-25 07:46:52 -07:00
|
|
|
icd->host_priv = cam;
|
|
|
|
} else {
|
|
|
|
cam = icd->host_priv;
|
|
|
|
}
|
|
|
|
|
2009-02-23 08:12:58 -07:00
|
|
|
/* Beginning of a pass */
|
|
|
|
if (!idx)
|
2009-08-25 07:46:52 -07:00
|
|
|
cam->extra_fmt = NULL;
|
2009-02-23 08:12:58 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
switch (code) {
|
2010-07-22 12:52:51 -07:00
|
|
|
case V4L2_MBUS_FMT_UYVY8_2X8:
|
|
|
|
case V4L2_MBUS_FMT_VYUY8_2X8:
|
|
|
|
case V4L2_MBUS_FMT_YUYV8_2X8:
|
|
|
|
case V4L2_MBUS_FMT_YVYU8_2X8:
|
2009-08-25 07:46:52 -07:00
|
|
|
if (cam->extra_fmt)
|
2009-12-11 07:46:49 -07:00
|
|
|
break;
|
2009-02-23 08:12:58 -07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Our case is simple so far: for any of the above four camera
|
|
|
|
* formats we add all our four synthesized NV* formats, so,
|
|
|
|
* just marking the device with a single flag suffices. If
|
|
|
|
* the format generation rules are more complex, you would have
|
|
|
|
* to actually hang your already added / counted formats onto
|
|
|
|
* the host_priv pointer and check whether the format you're
|
|
|
|
* going to add now is already there.
|
|
|
|
*/
|
2009-12-11 07:46:49 -07:00
|
|
|
cam->extra_fmt = sh_mobile_ceu_formats;
|
2009-02-23 08:12:58 -07:00
|
|
|
|
2008-12-18 08:38:06 -07:00
|
|
|
n = ARRAY_SIZE(sh_mobile_ceu_formats);
|
|
|
|
formats += n;
|
|
|
|
for (k = 0; xlate && k < n; k++) {
|
2009-12-11 07:46:49 -07:00
|
|
|
xlate->host_fmt = &sh_mobile_ceu_formats[k];
|
|
|
|
xlate->code = code;
|
2008-12-18 08:38:06 -07:00
|
|
|
xlate++;
|
2009-12-11 07:46:49 -07:00
|
|
|
dev_dbg(dev, "Providing format %s using code %d\n",
|
|
|
|
sh_mobile_ceu_formats[k].name, code);
|
2008-12-18 08:38:06 -07:00
|
|
|
}
|
2009-12-11 07:46:49 -07:00
|
|
|
break;
|
2008-12-18 07:49:06 -07:00
|
|
|
default:
|
2009-12-11 07:46:49 -07:00
|
|
|
if (!sh_mobile_ceu_packing_supported(fmt))
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Generic pass-through */
|
|
|
|
formats++;
|
|
|
|
if (xlate) {
|
|
|
|
xlate->host_fmt = fmt;
|
|
|
|
xlate->code = code;
|
|
|
|
xlate++;
|
|
|
|
dev_dbg(dev, "Providing format %s in pass-through mode\n",
|
2010-06-18 00:20:56 -07:00
|
|
|
fmt->name);
|
2008-12-18 07:49:06 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
return formats;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:46:52 -07:00
|
|
|
static void sh_mobile_ceu_put_formats(struct soc_camera_device *icd)
|
|
|
|
{
|
|
|
|
kfree(icd->host_priv);
|
|
|
|
icd->host_priv = NULL;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
/* Check if any dimension of r1 is smaller than respective one of r2 */
|
2009-08-25 07:46:52 -07:00
|
|
|
static bool is_smaller(struct v4l2_rect *r1, struct v4l2_rect *r2)
|
|
|
|
{
|
|
|
|
return r1->width < r2->width || r1->height < r2->height;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
/* Check if r1 fails to cover r2 */
|
|
|
|
static bool is_inside(struct v4l2_rect *r1, struct v4l2_rect *r2)
|
|
|
|
{
|
|
|
|
return r1->left > r2->left || r1->top > r2->top ||
|
|
|
|
r1->left + r1->width < r2->left + r2->width ||
|
|
|
|
r1->top + r1->height < r2->top + r2->height;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
static unsigned int scale_down(unsigned int size, unsigned int scale)
|
|
|
|
{
|
|
|
|
return (size * 4096 + scale / 2) / scale;
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int calc_generic_scale(unsigned int input, unsigned int output)
|
|
|
|
{
|
|
|
|
return (input * 4096 + output / 2) / output;
|
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* Get and store current client crop */
|
2009-08-25 07:50:46 -07:00
|
|
|
static int client_g_rect(struct v4l2_subdev *sd, struct v4l2_rect *rect)
|
|
|
|
{
|
|
|
|
struct v4l2_crop crop;
|
|
|
|
struct v4l2_cropcap cap;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
|
|
|
|
ret = v4l2_subdev_call(sd, video, g_crop, &crop);
|
|
|
|
if (!ret) {
|
|
|
|
*rect = crop.c;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Camera driver doesn't support .g_crop(), assume default rectangle */
|
|
|
|
cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
|
|
|
|
ret = v4l2_subdev_call(sd, video, cropcap, &cap);
|
2010-03-23 07:23:31 -07:00
|
|
|
if (!ret)
|
|
|
|
*rect = cap.defrect;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* Client crop has changed, update our sub-rectangle to remain within the area */
|
|
|
|
static void update_subrect(struct sh_mobile_ceu_cam *cam)
|
|
|
|
{
|
|
|
|
struct v4l2_rect *rect = &cam->rect, *subrect = &cam->subrect;
|
|
|
|
|
|
|
|
if (rect->width < subrect->width)
|
|
|
|
subrect->width = rect->width;
|
|
|
|
|
|
|
|
if (rect->height < subrect->height)
|
|
|
|
subrect->height = rect->height;
|
|
|
|
|
|
|
|
if (rect->left > subrect->left)
|
|
|
|
subrect->left = rect->left;
|
|
|
|
else if (rect->left + rect->width >
|
|
|
|
subrect->left + subrect->width)
|
|
|
|
subrect->left = rect->left + rect->width -
|
|
|
|
subrect->width;
|
|
|
|
|
|
|
|
if (rect->top > subrect->top)
|
|
|
|
subrect->top = rect->top;
|
|
|
|
else if (rect->top + rect->height >
|
|
|
|
subrect->top + subrect->height)
|
|
|
|
subrect->top = rect->top + rect->height -
|
|
|
|
subrect->height;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
/*
|
2009-08-25 07:50:46 -07:00
|
|
|
* The common for both scaling and cropping iterative approach is:
|
2009-08-25 07:46:54 -07:00
|
|
|
* 1. try if the client can produce exactly what requested by the user
|
|
|
|
* 2. if (1) failed, try to double the client image until we get one big enough
|
|
|
|
* 3. if (2) failed, try to request the maximum image
|
|
|
|
*/
|
2010-03-23 07:23:31 -07:00
|
|
|
static int client_s_crop(struct soc_camera_device *icd, struct v4l2_crop *crop,
|
2009-08-25 07:50:46 -07:00
|
|
|
struct v4l2_crop *cam_crop)
|
2009-03-13 02:08:20 -07:00
|
|
|
{
|
2010-03-23 07:23:31 -07:00
|
|
|
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
|
2009-08-25 07:50:46 -07:00
|
|
|
struct v4l2_rect *rect = &crop->c, *cam_rect = &cam_crop->c;
|
|
|
|
struct device *dev = sd->v4l2_dev->dev;
|
2010-03-23 07:23:31 -07:00
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
2009-08-25 07:50:46 -07:00
|
|
|
struct v4l2_cropcap cap;
|
2009-08-25 07:46:52 -07:00
|
|
|
int ret;
|
2009-08-25 07:50:46 -07:00
|
|
|
unsigned int width, height;
|
2009-08-25 07:46:52 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
v4l2_subdev_call(sd, video, s_crop, crop);
|
|
|
|
ret = client_g_rect(sd, cam_rect);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/*
|
|
|
|
* Now cam_crop contains the current camera input rectangle, and it must
|
|
|
|
* be within camera cropcap bounds
|
|
|
|
*/
|
|
|
|
if (!memcmp(rect, cam_rect, sizeof(*rect))) {
|
|
|
|
/* Even if camera S_CROP failed, but camera rectangle matches */
|
2010-02-24 13:13:29 -07:00
|
|
|
dev_dbg(dev, "Camera S_CROP successful for %dx%d@%d:%d\n",
|
2009-08-25 07:50:46 -07:00
|
|
|
rect->width, rect->height, rect->left, rect->top);
|
2010-03-23 07:23:31 -07:00
|
|
|
cam->rect = *cam_rect;
|
2009-08-25 07:50:46 -07:00
|
|
|
return 0;
|
2009-08-25 07:46:52 -07:00
|
|
|
}
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/* Try to fix cropping, that camera hasn't managed to set */
|
2010-02-24 13:13:29 -07:00
|
|
|
dev_geo(dev, "Fix camera S_CROP for %dx%d@%d:%d to %dx%d@%d:%d\n",
|
2009-08-25 07:50:46 -07:00
|
|
|
cam_rect->width, cam_rect->height,
|
2009-08-25 07:46:54 -07:00
|
|
|
cam_rect->left, cam_rect->top,
|
2009-08-25 07:50:46 -07:00
|
|
|
rect->width, rect->height, rect->left, rect->top);
|
|
|
|
|
|
|
|
/* We need sensor maximum rectangle */
|
|
|
|
ret = v4l2_subdev_call(sd, video, cropcap, &cap);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* Put user requested rectangle within sensor bounds */
|
2009-08-25 07:50:46 -07:00
|
|
|
soc_camera_limit_side(&rect->left, &rect->width, cap.bounds.left, 2,
|
|
|
|
cap.bounds.width);
|
|
|
|
soc_camera_limit_side(&rect->top, &rect->height, cap.bounds.top, 4,
|
|
|
|
cap.bounds.height);
|
2009-08-25 07:46:52 -07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Popular special case - some cameras can only handle fixed sizes like
|
|
|
|
* QVGA, VGA,... Take care to avoid infinite loop.
|
|
|
|
*/
|
2009-08-25 07:50:46 -07:00
|
|
|
width = max(cam_rect->width, 2);
|
|
|
|
height = max(cam_rect->height, 2);
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/*
|
|
|
|
* Loop as long as sensor is not covering the requested rectangle and
|
|
|
|
* is still within its bounds
|
|
|
|
*/
|
2009-08-25 07:50:46 -07:00
|
|
|
while (!ret && (is_smaller(cam_rect, rect) ||
|
|
|
|
is_inside(cam_rect, rect)) &&
|
|
|
|
(cap.bounds.width > width || cap.bounds.height > height)) {
|
2009-08-25 07:46:54 -07:00
|
|
|
|
|
|
|
width *= 2;
|
|
|
|
height *= 2;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
cam_rect->width = width;
|
|
|
|
cam_rect->height = height;
|
2009-08-25 07:46:52 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/*
|
|
|
|
* We do not know what capabilities the camera has to set up
|
|
|
|
* left and top borders. We could try to be smarter in iterating
|
|
|
|
* them, e.g., if camera current left is to the right of the
|
|
|
|
* target left, set it to the middle point between the current
|
|
|
|
* left and minimum left. But that would add too much
|
|
|
|
* complexity: we would have to iterate each border separately.
|
2010-03-23 07:23:31 -07:00
|
|
|
* Instead we just drop to the left and top bounds.
|
2009-08-25 07:50:46 -07:00
|
|
|
*/
|
|
|
|
if (cam_rect->left > rect->left)
|
|
|
|
cam_rect->left = cap.bounds.left;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
if (cam_rect->left + cam_rect->width < rect->left + rect->width)
|
|
|
|
cam_rect->width = rect->left + rect->width -
|
2009-08-25 07:46:54 -07:00
|
|
|
cam_rect->left;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
if (cam_rect->top > rect->top)
|
|
|
|
cam_rect->top = cap.bounds.top;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
if (cam_rect->top + cam_rect->height < rect->top + rect->height)
|
|
|
|
cam_rect->height = rect->top + rect->height -
|
2009-08-25 07:46:54 -07:00
|
|
|
cam_rect->top;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
v4l2_subdev_call(sd, video, s_crop, cam_crop);
|
|
|
|
ret = client_g_rect(sd, cam_rect);
|
2010-02-24 13:13:29 -07:00
|
|
|
dev_geo(dev, "Camera S_CROP %d for %dx%d@%d:%d\n", ret,
|
2009-08-25 07:50:46 -07:00
|
|
|
cam_rect->width, cam_rect->height,
|
2009-08-25 07:46:54 -07:00
|
|
|
cam_rect->left, cam_rect->top);
|
2009-08-25 07:46:52 -07:00
|
|
|
}
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/* S_CROP must not modify the rectangle */
|
|
|
|
if (is_smaller(cam_rect, rect) || is_inside(cam_rect, rect)) {
|
2009-08-25 07:46:52 -07:00
|
|
|
/*
|
|
|
|
* The camera failed to configure a suitable cropping,
|
|
|
|
* we cannot use the current rectangle, set to max
|
|
|
|
*/
|
2009-08-25 07:50:46 -07:00
|
|
|
*cam_rect = cap.bounds;
|
|
|
|
v4l2_subdev_call(sd, video, s_crop, cam_crop);
|
|
|
|
ret = client_g_rect(sd, cam_rect);
|
2010-02-24 13:13:29 -07:00
|
|
|
dev_geo(dev, "Camera S_CROP %d for max %dx%d@%d:%d\n", ret,
|
2009-08-25 07:50:46 -07:00
|
|
|
cam_rect->width, cam_rect->height,
|
2009-08-25 07:46:54 -07:00
|
|
|
cam_rect->left, cam_rect->top);
|
2009-08-25 07:46:52 -07:00
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
if (!ret) {
|
|
|
|
cam->rect = *cam_rect;
|
|
|
|
update_subrect(cam);
|
2009-08-25 07:50:46 -07:00
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
return ret;
|
2009-08-25 07:50:46 -07:00
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* Iterative s_mbus_fmt, also updates cached client crop on success */
|
2009-12-11 07:46:49 -07:00
|
|
|
static int client_s_fmt(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_mbus_framefmt *mf, bool ceu_can_scale)
|
2009-08-25 07:50:46 -07:00
|
|
|
{
|
2010-03-23 07:23:31 -07:00
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
2009-08-25 07:50:46 -07:00
|
|
|
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
|
|
|
|
struct device *dev = icd->dev.parent;
|
2009-12-11 07:46:49 -07:00
|
|
|
unsigned int width = mf->width, height = mf->height, tmp_w, tmp_h;
|
2009-08-25 07:50:46 -07:00
|
|
|
unsigned int max_width, max_height;
|
|
|
|
struct v4l2_cropcap cap;
|
|
|
|
int ret;
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
|
|
|
|
s_mbus_fmt, mf);
|
2010-03-23 07:23:31 -07:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
dev_geo(dev, "camera scaled to %ux%u\n", mf->width, mf->height);
|
|
|
|
|
|
|
|
if ((width == mf->width && height == mf->height) || !ceu_can_scale)
|
|
|
|
goto update_cache;
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
cap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
|
|
|
|
ret = v4l2_subdev_call(sd, video, cropcap, &cap);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
max_width = min(cap.bounds.width, 2560);
|
|
|
|
max_height = min(cap.bounds.height, 1920);
|
|
|
|
|
|
|
|
/* Camera set a format, but geometry is not precise, try to improve */
|
2009-12-11 07:46:49 -07:00
|
|
|
tmp_w = mf->width;
|
|
|
|
tmp_h = mf->height;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
|
|
|
/* width <= max_width && height <= max_height - guaranteed by try_fmt */
|
|
|
|
while ((width > tmp_w || height > tmp_h) &&
|
|
|
|
tmp_w < max_width && tmp_h < max_height) {
|
|
|
|
tmp_w = min(2 * tmp_w, max_width);
|
|
|
|
tmp_h = min(2 * tmp_h, max_height);
|
2009-12-11 07:46:49 -07:00
|
|
|
mf->width = tmp_w;
|
|
|
|
mf->height = tmp_h;
|
2010-07-26 08:13:34 -07:00
|
|
|
ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
|
|
|
|
s_mbus_fmt, mf);
|
2009-08-25 07:50:46 -07:00
|
|
|
dev_geo(dev, "Camera scaled to %ux%u\n",
|
2009-12-11 07:46:49 -07:00
|
|
|
mf->width, mf->height);
|
2009-08-25 07:50:46 -07:00
|
|
|
if (ret < 0) {
|
|
|
|
/* This shouldn't happen */
|
|
|
|
dev_err(dev, "Client failed to set format: %d\n", ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
update_cache:
|
|
|
|
/* Update cache */
|
|
|
|
ret = client_g_rect(sd, &cam->rect);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
update_subrect(cam);
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2010-03-23 07:23:31 -07:00
|
|
|
* @width - on output: user width, mapped back to input
|
|
|
|
* @height - on output: user height, mapped back to input
|
|
|
|
* @mf - in- / output camera output window
|
2009-08-25 07:50:46 -07:00
|
|
|
*/
|
2010-03-23 07:23:31 -07:00
|
|
|
static int client_scale(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_mbus_framefmt *mf,
|
|
|
|
unsigned int *width, unsigned int *height,
|
|
|
|
bool ceu_can_scale)
|
2009-08-25 07:50:46 -07:00
|
|
|
{
|
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
|
|
|
struct device *dev = icd->dev.parent;
|
2009-12-11 07:46:49 -07:00
|
|
|
struct v4l2_mbus_framefmt mf_tmp = *mf;
|
2009-08-25 07:50:46 -07:00
|
|
|
unsigned int scale_h, scale_v;
|
|
|
|
int ret;
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/*
|
|
|
|
* 5. Apply iterative camera S_FMT for camera user window (also updates
|
|
|
|
* client crop cache and the imaginary sub-rectangle).
|
|
|
|
*/
|
2009-12-11 07:46:49 -07:00
|
|
|
ret = client_s_fmt(icd, &mf_tmp, ceu_can_scale);
|
2009-08-25 07:50:46 -07:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
dev_geo(dev, "5: camera scaled to %ux%u\n",
|
2009-12-11 07:46:49 -07:00
|
|
|
mf_tmp.width, mf_tmp.height);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
|
|
|
/* 6. Retrieve camera output window (g_fmt) */
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
/* unneeded - it is already in "mf_tmp" */
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* 7. Calculate new client scales. */
|
|
|
|
scale_h = calc_generic_scale(cam->rect.width, mf_tmp.width);
|
|
|
|
scale_v = calc_generic_scale(cam->rect.height, mf_tmp.height);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
mf->width = mf_tmp.width;
|
|
|
|
mf->height = mf_tmp.height;
|
|
|
|
mf->colorspace = mf_tmp.colorspace;
|
2009-08-25 07:46:52 -07:00
|
|
|
|
|
|
|
/*
|
2009-08-25 07:50:46 -07:00
|
|
|
* 8. Calculate new CEU crop - apply camera scales to previously
|
2010-03-23 07:23:31 -07:00
|
|
|
* updated "effective" crop.
|
2009-08-25 07:46:52 -07:00
|
|
|
*/
|
2010-03-23 07:23:31 -07:00
|
|
|
*width = scale_down(cam->subrect.width, scale_h);
|
|
|
|
*height = scale_down(cam->subrect.height, scale_v);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(dev, "8: new client sub-window %ux%u\n", *width, *height);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* CEU can scale and crop, but we don't want to waste bandwidth and kill the
|
|
|
|
* framerate by always requesting the maximum image from the client. See
|
|
|
|
* Documentation/video4linux/sh_mobile_camera_ceu.txt for a description of
|
|
|
|
* scaling and cropping algorithms and for the meaning of referenced here steps.
|
|
|
|
*/
|
|
|
|
static int sh_mobile_ceu_set_crop(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_crop *a)
|
|
|
|
{
|
|
|
|
struct v4l2_rect *rect = &a->c;
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
|
|
|
struct v4l2_crop cam_crop;
|
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
2010-03-23 07:23:31 -07:00
|
|
|
struct v4l2_rect *cam_rect = &cam_crop.c;
|
2009-08-25 07:50:46 -07:00
|
|
|
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
|
|
|
|
struct device *dev = icd->dev.parent;
|
2009-12-11 07:46:49 -07:00
|
|
|
struct v4l2_mbus_framefmt mf;
|
2010-03-23 07:23:31 -07:00
|
|
|
unsigned int scale_cam_h, scale_cam_v, scale_ceu_h, scale_ceu_v,
|
|
|
|
out_width, out_height, scale_h, scale_v;
|
|
|
|
int interm_width, interm_height;
|
2009-08-25 07:50:46 -07:00
|
|
|
u32 capsr, cflcr;
|
|
|
|
int ret;
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(dev, "S_CROP(%ux%u@%u:%u)\n", rect->width, rect->height,
|
|
|
|
rect->left, rect->top);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* During camera cropping its output window can change too, stop CEU */
|
|
|
|
capsr = capture_save_reset(pcdev);
|
|
|
|
dev_dbg(dev, "CAPSR 0x%x, CFLCR 0x%x\n", capsr, pcdev->cflcr);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* 1. - 2. Apply iterative camera S_CROP for new input window. */
|
|
|
|
ret = client_s_crop(icd, a, &cam_crop);
|
2009-08-25 07:50:46 -07:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(dev, "1-2: camera cropped to %ux%u@%u:%u\n",
|
2009-08-25 07:50:46 -07:00
|
|
|
cam_rect->width, cam_rect->height,
|
|
|
|
cam_rect->left, cam_rect->top);
|
|
|
|
|
|
|
|
/* On success cam_crop contains current camera crop */
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* 3. Retrieve camera output window */
|
|
|
|
ret = v4l2_subdev_call(sd, video, g_mbus_fmt, &mf);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
if (mf.width > 2560 || mf.height > 1920)
|
|
|
|
return -EINVAL;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* Cache camera output window */
|
|
|
|
cam->width = mf.width;
|
|
|
|
cam->height = mf.height;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* 4. Calculate camera scales */
|
|
|
|
scale_cam_h = calc_generic_scale(cam_rect->width, mf.width);
|
|
|
|
scale_cam_v = calc_generic_scale(cam_rect->height, mf.height);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* Calculate intermediate window */
|
|
|
|
interm_width = scale_down(rect->width, scale_cam_h);
|
|
|
|
interm_height = scale_down(rect->height, scale_cam_v);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
if (pcdev->image_mode) {
|
|
|
|
out_width = min(interm_width, icd->user_width);
|
|
|
|
out_height = min(interm_height, icd->user_height);
|
|
|
|
} else {
|
|
|
|
out_width = interm_width;
|
|
|
|
out_height = interm_height;
|
|
|
|
}
|
2009-08-25 07:50:46 -07:00
|
|
|
|
|
|
|
/*
|
2010-03-23 07:23:31 -07:00
|
|
|
* 5. Calculate CEU scales from camera scales from results of (5) and
|
|
|
|
* the user window
|
2009-08-25 07:50:46 -07:00
|
|
|
*/
|
2010-03-23 07:23:31 -07:00
|
|
|
scale_ceu_h = calc_scale(interm_width, &out_width);
|
|
|
|
scale_ceu_v = calc_scale(interm_height, &out_height);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* Calculate camera scales */
|
|
|
|
scale_h = calc_generic_scale(cam_rect->width, out_width);
|
|
|
|
scale_v = calc_generic_scale(cam_rect->height, out_height);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(dev, "5: CEU scales %u:%u\n", scale_ceu_h, scale_ceu_v);
|
|
|
|
|
|
|
|
/* Apply CEU scales. */
|
2009-08-25 07:50:46 -07:00
|
|
|
cflcr = scale_ceu_h | (scale_ceu_v << 16);
|
|
|
|
if (cflcr != pcdev->cflcr) {
|
|
|
|
pcdev->cflcr = cflcr;
|
|
|
|
ceu_write(pcdev, CFLCR, cflcr);
|
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
icd->user_width = out_width;
|
|
|
|
icd->user_height = out_height;
|
|
|
|
cam->ceu_left = scale_down(rect->left - cam_rect->left, scale_h) & ~1;
|
|
|
|
cam->ceu_top = scale_down(rect->top - cam_rect->top, scale_v) & ~1;
|
|
|
|
|
|
|
|
/* 6. Use CEU cropping to crop to the new window. */
|
|
|
|
sh_mobile_ceu_set_rect(icd);
|
|
|
|
|
|
|
|
cam->subrect = *rect;
|
|
|
|
|
|
|
|
dev_geo(dev, "6: CEU cropped to %ux%u@%u:%u\n",
|
|
|
|
icd->user_width, icd->user_height,
|
|
|
|
cam->ceu_left, cam->ceu_top);
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/* Restore capture */
|
2009-08-25 07:46:52 -07:00
|
|
|
if (pcdev->active)
|
|
|
|
capsr |= 1;
|
|
|
|
capture_restore(pcdev, capsr);
|
|
|
|
|
|
|
|
/* Even if only camera cropping succeeded */
|
|
|
|
return ret;
|
2009-03-13 02:08:20 -07:00
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
static int sh_mobile_ceu_get_crop(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_crop *a)
|
|
|
|
{
|
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
|
|
|
|
|
|
|
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
a->c = cam->subrect;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Calculate real client output window by applying new scales to the current
|
|
|
|
* client crop. New scales are calculated from the requested output format and
|
|
|
|
* CEU crop, mapped backed onto the client input (subrect).
|
|
|
|
*/
|
|
|
|
static void calculate_client_output(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_pix_format *pix, struct v4l2_mbus_framefmt *mf)
|
|
|
|
{
|
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
|
|
|
struct device *dev = icd->dev.parent;
|
|
|
|
struct v4l2_rect *cam_subrect = &cam->subrect;
|
|
|
|
unsigned int scale_v, scale_h;
|
|
|
|
|
|
|
|
if (cam_subrect->width == cam->rect.width &&
|
|
|
|
cam_subrect->height == cam->rect.height) {
|
|
|
|
/* No sub-cropping */
|
|
|
|
mf->width = pix->width;
|
|
|
|
mf->height = pix->height;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* 1.-2. Current camera scales and subwin - cached. */
|
|
|
|
|
|
|
|
dev_geo(dev, "2: subwin %ux%u@%u:%u\n",
|
|
|
|
cam_subrect->width, cam_subrect->height,
|
|
|
|
cam_subrect->left, cam_subrect->top);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 3. Calculate new combined scales from input sub-window to requested
|
|
|
|
* user window.
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* TODO: CEU cannot scale images larger than VGA to smaller than SubQCIF
|
|
|
|
* (128x96) or larger than VGA
|
|
|
|
*/
|
|
|
|
scale_h = calc_generic_scale(cam_subrect->width, pix->width);
|
|
|
|
scale_v = calc_generic_scale(cam_subrect->height, pix->height);
|
|
|
|
|
|
|
|
dev_geo(dev, "3: scales %u:%u\n", scale_h, scale_v);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 4. Calculate client output window by applying combined scales to real
|
|
|
|
* input window.
|
|
|
|
*/
|
|
|
|
mf->width = scale_down(cam->rect.width, scale_h);
|
|
|
|
mf->height = scale_down(cam->rect.height, scale_v);
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
/* Similar to set_crop multistage iterative algorithm */
|
2008-12-01 05:45:21 -07:00
|
|
|
static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd,
|
2009-03-13 02:08:20 -07:00
|
|
|
struct v4l2_format *f)
|
2008-07-16 18:59:28 -07:00
|
|
|
{
|
2008-12-18 07:49:06 -07:00
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
2009-08-25 07:46:54 -07:00
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
2009-08-25 07:46:52 -07:00
|
|
|
struct sh_mobile_ceu_cam *cam = icd->host_priv;
|
|
|
|
struct v4l2_pix_format *pix = &f->fmt.pix;
|
2009-12-11 07:46:49 -07:00
|
|
|
struct v4l2_mbus_framefmt mf;
|
2009-08-25 07:50:46 -07:00
|
|
|
struct device *dev = icd->dev.parent;
|
2009-08-25 07:46:52 -07:00
|
|
|
__u32 pixfmt = pix->pixelformat;
|
2008-12-18 07:49:06 -07:00
|
|
|
const struct soc_camera_format_xlate *xlate;
|
2010-07-26 08:13:34 -07:00
|
|
|
/* Keep Compiler Happy */
|
|
|
|
unsigned int ceu_sub_width = 0, ceu_sub_height = 0;
|
2009-08-25 07:50:46 -07:00
|
|
|
u16 scale_v, scale_h;
|
|
|
|
int ret;
|
2009-12-11 07:53:53 -07:00
|
|
|
bool image_mode;
|
|
|
|
enum v4l2_field field;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(dev, "S_FMT(pix=0x%x, %ux%u)\n", pixfmt, pix->width, pix->height);
|
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
switch (pix->field) {
|
|
|
|
default:
|
|
|
|
pix->field = V4L2_FIELD_NONE;
|
|
|
|
/* fall-through */
|
2009-12-11 07:53:53 -07:00
|
|
|
case V4L2_FIELD_INTERLACED_TB:
|
|
|
|
case V4L2_FIELD_INTERLACED_BT:
|
2009-08-25 07:46:54 -07:00
|
|
|
case V4L2_FIELD_NONE:
|
2009-12-11 07:53:53 -07:00
|
|
|
field = pix->field;
|
|
|
|
break;
|
|
|
|
case V4L2_FIELD_INTERLACED:
|
|
|
|
field = V4L2_FIELD_INTERLACED_TB;
|
2009-08-25 07:46:54 -07:00
|
|
|
break;
|
|
|
|
}
|
2008-12-01 05:44:59 -07:00
|
|
|
|
2008-12-18 07:49:06 -07:00
|
|
|
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
|
|
|
|
if (!xlate) {
|
2009-08-25 07:50:46 -07:00
|
|
|
dev_warn(dev, "Format %x not found\n", pixfmt);
|
2008-12-18 07:49:06 -07:00
|
|
|
return -EINVAL;
|
2008-12-01 05:44:59 -07:00
|
|
|
}
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* 1.-4. Calculate client output geometry */
|
|
|
|
calculate_client_output(icd, &f->fmt.pix, &mf);
|
2009-12-11 07:46:49 -07:00
|
|
|
mf.field = pix->field;
|
|
|
|
mf.colorspace = pix->colorspace;
|
|
|
|
mf.code = xlate->code;
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
switch (pixfmt) {
|
|
|
|
case V4L2_PIX_FMT_NV12:
|
|
|
|
case V4L2_PIX_FMT_NV21:
|
|
|
|
case V4L2_PIX_FMT_NV16:
|
|
|
|
case V4L2_PIX_FMT_NV61:
|
2009-08-25 07:50:46 -07:00
|
|
|
image_mode = true;
|
2009-08-25 07:46:54 -07:00
|
|
|
break;
|
|
|
|
default:
|
2009-08-25 07:50:46 -07:00
|
|
|
image_mode = false;
|
2008-12-18 07:49:06 -07:00
|
|
|
}
|
2008-12-01 05:44:59 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(dev, "4: request camera output %ux%u\n", mf.width, mf.height);
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/* 5. - 9. */
|
2010-03-23 07:23:31 -07:00
|
|
|
ret = client_scale(icd, &mf, &ceu_sub_width, &ceu_sub_height,
|
2009-12-11 07:53:53 -07:00
|
|
|
image_mode && V4L2_FIELD_NONE == field);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
dev_geo(dev, "5-9: client scale return %d\n", ret);
|
2009-08-25 07:50:46 -07:00
|
|
|
|
|
|
|
/* Done with the camera. Now see if we can improve the result */
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
dev_geo(dev, "fmt %ux%u, requested %ux%u\n",
|
|
|
|
mf.width, mf.height, pix->width, pix->height);
|
2009-08-25 07:50:46 -07:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
if (mf.code != xlate->code)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
/* 9. Prepare CEU crop */
|
|
|
|
cam->width = mf.width;
|
|
|
|
cam->height = mf.height;
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
/* 10. Use CEU scaling to scale to the requested user window. */
|
2009-08-25 07:46:54 -07:00
|
|
|
|
|
|
|
/* We cannot scale up */
|
2010-03-23 07:23:31 -07:00
|
|
|
if (pix->width > ceu_sub_width)
|
|
|
|
ceu_sub_width = pix->width;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
if (pix->height > ceu_sub_height)
|
|
|
|
ceu_sub_height = pix->height;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
pix->colorspace = mf.colorspace;
|
|
|
|
|
|
|
|
if (image_mode) {
|
|
|
|
/* Scale pix->{width x height} down to width x height */
|
2010-03-23 07:23:31 -07:00
|
|
|
scale_h = calc_scale(ceu_sub_width, &pix->width);
|
|
|
|
scale_v = calc_scale(ceu_sub_height, &pix->height);
|
2009-12-11 07:46:49 -07:00
|
|
|
} else {
|
2010-03-23 07:23:31 -07:00
|
|
|
pix->width = ceu_sub_width;
|
|
|
|
pix->height = ceu_sub_height;
|
|
|
|
scale_h = 0;
|
|
|
|
scale_v = 0;
|
2009-12-11 07:46:49 -07:00
|
|
|
}
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2010-03-23 07:23:31 -07:00
|
|
|
pcdev->cflcr = scale_h | (scale_v << 16);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We have calculated CFLCR, the actual configuration will be performed
|
|
|
|
* in sh_mobile_ceu_set_bus_param()
|
|
|
|
*/
|
|
|
|
|
2009-08-25 07:50:46 -07:00
|
|
|
dev_geo(dev, "10: W: %u : 0x%x = %u, H: %u : 0x%x = %u\n",
|
2010-03-23 07:23:31 -07:00
|
|
|
ceu_sub_width, scale_h, pix->width,
|
|
|
|
ceu_sub_height, scale_v, pix->height);
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
cam->code = xlate->code;
|
|
|
|
icd->current_fmt = xlate;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
2009-12-11 07:53:53 -07:00
|
|
|
pcdev->field = field;
|
2009-08-25 07:50:46 -07:00
|
|
|
pcdev->image_mode = image_mode;
|
2009-08-25 07:46:54 -07:00
|
|
|
|
|
|
|
return 0;
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
|
|
|
|
2008-12-01 05:45:21 -07:00
|
|
|
static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_format *f)
|
2008-07-16 18:59:28 -07:00
|
|
|
{
|
2008-12-18 07:49:06 -07:00
|
|
|
const struct soc_camera_format_xlate *xlate;
|
2009-08-25 07:46:52 -07:00
|
|
|
struct v4l2_pix_format *pix = &f->fmt.pix;
|
2009-08-25 07:46:59 -07:00
|
|
|
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
|
2009-12-11 07:46:49 -07:00
|
|
|
struct v4l2_mbus_framefmt mf;
|
2009-08-25 07:46:52 -07:00
|
|
|
__u32 pixfmt = pix->pixelformat;
|
2009-08-25 07:46:54 -07:00
|
|
|
int width, height;
|
2008-12-18 08:51:21 -07:00
|
|
|
int ret;
|
2008-12-01 05:44:53 -07:00
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
dev_geo(icd->dev.parent, "TRY_FMT(pix=0x%x, %ux%u)\n",
|
|
|
|
pixfmt, pix->width, pix->height);
|
|
|
|
|
2008-12-18 07:49:06 -07:00
|
|
|
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
|
|
|
|
if (!xlate) {
|
2009-08-25 07:47:00 -07:00
|
|
|
dev_warn(icd->dev.parent, "Format %x not found\n", pixfmt);
|
2008-12-01 05:44:59 -07:00
|
|
|
return -EINVAL;
|
2008-12-18 07:49:06 -07:00
|
|
|
}
|
2008-12-01 05:44:59 -07:00
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
/* FIXME: calculate using depth and bus width */
|
|
|
|
|
2009-08-25 07:46:52 -07:00
|
|
|
v4l_bound_align_image(&pix->width, 2, 2560, 1,
|
|
|
|
&pix->height, 4, 1920, 2, 0);
|
2008-07-16 18:59:28 -07:00
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
width = pix->width;
|
|
|
|
height = pix->height;
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
pix->bytesperline = soc_mbus_bytes_per_line(width, xlate->host_fmt);
|
2010-04-07 02:41:14 -07:00
|
|
|
if ((int)pix->bytesperline < 0)
|
2009-12-11 07:46:49 -07:00
|
|
|
return pix->bytesperline;
|
|
|
|
pix->sizeimage = height * pix->bytesperline;
|
2009-08-25 07:43:33 -07:00
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
/* limit to sensor capabilities */
|
2009-12-11 07:46:49 -07:00
|
|
|
mf.width = pix->width;
|
|
|
|
mf.height = pix->height;
|
|
|
|
mf.field = pix->field;
|
|
|
|
mf.code = xlate->code;
|
|
|
|
mf.colorspace = pix->colorspace;
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video, try_mbus_fmt, &mf);
|
2008-12-18 08:51:21 -07:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2009-12-11 07:46:49 -07:00
|
|
|
pix->width = mf.width;
|
|
|
|
pix->height = mf.height;
|
|
|
|
pix->field = mf.field;
|
|
|
|
pix->colorspace = mf.colorspace;
|
|
|
|
|
2009-08-25 07:46:54 -07:00
|
|
|
switch (pixfmt) {
|
|
|
|
case V4L2_PIX_FMT_NV12:
|
|
|
|
case V4L2_PIX_FMT_NV21:
|
|
|
|
case V4L2_PIX_FMT_NV16:
|
|
|
|
case V4L2_PIX_FMT_NV61:
|
|
|
|
/* FIXME: check against rect_max after converting soc-camera */
|
|
|
|
/* We can scale precisely, need a bigger image from camera */
|
|
|
|
if (pix->width < width || pix->height < height) {
|
2009-12-11 07:46:49 -07:00
|
|
|
/*
|
|
|
|
* We presume, the sensor behaves sanely, i.e., if
|
|
|
|
* requested a bigger rectangle, it will not return a
|
|
|
|
* smaller one.
|
|
|
|
*/
|
|
|
|
mf.width = 2560;
|
|
|
|
mf.height = 1920;
|
2010-07-26 08:13:34 -07:00
|
|
|
ret = v4l2_device_call_until_err(sd->v4l2_dev, 0, video,
|
|
|
|
try_mbus_fmt, &mf);
|
2009-08-25 07:46:54 -07:00
|
|
|
if (ret < 0) {
|
|
|
|
/* Shouldn't actually happen... */
|
2009-08-25 07:47:00 -07:00
|
|
|
dev_err(icd->dev.parent,
|
2009-12-11 07:46:49 -07:00
|
|
|
"FIXME: client try_fmt() = %d\n", ret);
|
|
|
|
return ret;
|
2009-08-25 07:46:54 -07:00
|
|
|
}
|
|
|
|
}
|
2009-12-11 07:46:49 -07:00
|
|
|
/* We will scale exactly */
|
|
|
|
if (mf.width > width)
|
2009-08-25 07:46:54 -07:00
|
|
|
pix->width = width;
|
2009-12-11 07:46:49 -07:00
|
|
|
if (mf.height > height)
|
2009-08-25 07:46:54 -07:00
|
|
|
pix->height = height;
|
2008-12-18 08:51:21 -07:00
|
|
|
}
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
dev_geo(icd->dev.parent, "%s(): return %d, fmt 0x%x, %ux%u\n",
|
|
|
|
__func__, ret, pix->pixelformat, pix->width, pix->height);
|
|
|
|
|
2008-12-18 08:51:21 -07:00
|
|
|
return ret;
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
|
|
|
|
2010-08-17 10:29:51 -07:00
|
|
|
static int sh_mobile_ceu_reqbufs(struct soc_camera_device *icd,
|
2008-07-16 18:59:28 -07:00
|
|
|
struct v4l2_requestbuffers *p)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
2009-12-11 07:15:05 -07:00
|
|
|
/*
|
|
|
|
* This is for locking debugging only. I removed spinlocks and now I
|
2008-07-16 18:59:28 -07:00
|
|
|
* check whether .prepare is ever called on a linked buffer, or whether
|
|
|
|
* a dma IRQ can occur for an in-work or unlinked buffer. Until now
|
2009-12-11 07:15:05 -07:00
|
|
|
* it hadn't triggered
|
|
|
|
*/
|
2008-07-16 18:59:28 -07:00
|
|
|
for (i = 0; i < p->count; i++) {
|
|
|
|
struct sh_mobile_ceu_buffer *buf;
|
|
|
|
|
2010-08-17 10:29:51 -07:00
|
|
|
buf = container_of(icd->vb_vidq.bufs[i],
|
2008-07-16 18:59:28 -07:00
|
|
|
struct sh_mobile_ceu_buffer, vb);
|
|
|
|
INIT_LIST_HEAD(&buf->vb.queue);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int sh_mobile_ceu_poll(struct file *file, poll_table *pt)
|
|
|
|
{
|
2010-08-17 10:29:51 -07:00
|
|
|
struct soc_camera_device *icd = file->private_data;
|
2008-07-16 18:59:28 -07:00
|
|
|
struct sh_mobile_ceu_buffer *buf;
|
|
|
|
|
2010-08-17 10:29:51 -07:00
|
|
|
buf = list_entry(icd->vb_vidq.stream.next,
|
2008-07-16 18:59:28 -07:00
|
|
|
struct sh_mobile_ceu_buffer, vb.stream);
|
|
|
|
|
|
|
|
poll_wait(file, &buf->vb.done, pt);
|
|
|
|
|
|
|
|
if (buf->vb.state == VIDEOBUF_DONE ||
|
|
|
|
buf->vb.state == VIDEOBUF_ERROR)
|
|
|
|
return POLLIN|POLLRDNORM;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int sh_mobile_ceu_querycap(struct soc_camera_host *ici,
|
|
|
|
struct v4l2_capability *cap)
|
|
|
|
{
|
|
|
|
strlcpy(cap->card, "SuperH_Mobile_CEU", sizeof(cap->card));
|
|
|
|
cap->version = KERNEL_VERSION(0, 0, 5);
|
|
|
|
cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void sh_mobile_ceu_init_videobuf(struct videobuf_queue *q,
|
|
|
|
struct soc_camera_device *icd)
|
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
|
|
|
|
|
|
|
videobuf_queue_dma_contig_init(q,
|
|
|
|
&sh_mobile_ceu_videobuf_ops,
|
2009-08-25 07:47:00 -07:00
|
|
|
icd->dev.parent, &pcdev->lock,
|
2008-07-16 18:59:28 -07:00
|
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
2009-12-11 07:53:53 -07:00
|
|
|
pcdev->field,
|
2008-07-16 18:59:28 -07:00
|
|
|
sizeof(struct sh_mobile_ceu_buffer),
|
2010-12-25 13:40:26 -07:00
|
|
|
icd, &icd->video_lock);
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
|
|
|
|
2009-08-25 07:44:15 -07:00
|
|
|
static int sh_mobile_ceu_get_ctrl(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_control *ctrl)
|
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
|
|
|
u32 val;
|
|
|
|
|
|
|
|
switch (ctrl->id) {
|
|
|
|
case V4L2_CID_SHARPNESS:
|
|
|
|
val = ceu_read(pcdev, CLFCR);
|
|
|
|
ctrl->value = val ^ 1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return -ENOIOCTLCMD;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int sh_mobile_ceu_set_ctrl(struct soc_camera_device *icd,
|
|
|
|
struct v4l2_control *ctrl)
|
|
|
|
{
|
|
|
|
struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = ici->priv;
|
|
|
|
|
|
|
|
switch (ctrl->id) {
|
|
|
|
case V4L2_CID_SHARPNESS:
|
2009-12-11 07:46:49 -07:00
|
|
|
switch (icd->current_fmt->host_fmt->fourcc) {
|
2009-08-25 07:44:15 -07:00
|
|
|
case V4L2_PIX_FMT_NV12:
|
|
|
|
case V4L2_PIX_FMT_NV21:
|
|
|
|
case V4L2_PIX_FMT_NV16:
|
|
|
|
case V4L2_PIX_FMT_NV61:
|
|
|
|
ceu_write(pcdev, CLFCR, !ctrl->value);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
return -ENOIOCTLCMD;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct v4l2_queryctrl sh_mobile_ceu_controls[] = {
|
|
|
|
{
|
|
|
|
.id = V4L2_CID_SHARPNESS,
|
|
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
|
|
.name = "Low-pass filter",
|
|
|
|
.minimum = 0,
|
|
|
|
.maximum = 1,
|
|
|
|
.step = 1,
|
|
|
|
.default_value = 0,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
static struct soc_camera_host_ops sh_mobile_ceu_host_ops = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.add = sh_mobile_ceu_add_device,
|
|
|
|
.remove = sh_mobile_ceu_remove_device,
|
2008-12-18 07:49:06 -07:00
|
|
|
.get_formats = sh_mobile_ceu_get_formats,
|
2009-08-25 07:46:52 -07:00
|
|
|
.put_formats = sh_mobile_ceu_put_formats,
|
2010-03-23 07:23:31 -07:00
|
|
|
.get_crop = sh_mobile_ceu_get_crop,
|
2009-03-13 02:08:20 -07:00
|
|
|
.set_crop = sh_mobile_ceu_set_crop,
|
2008-12-01 05:45:21 -07:00
|
|
|
.set_fmt = sh_mobile_ceu_set_fmt,
|
|
|
|
.try_fmt = sh_mobile_ceu_try_fmt,
|
2009-08-25 07:44:15 -07:00
|
|
|
.set_ctrl = sh_mobile_ceu_set_ctrl,
|
|
|
|
.get_ctrl = sh_mobile_ceu_get_ctrl,
|
2008-07-16 18:59:28 -07:00
|
|
|
.reqbufs = sh_mobile_ceu_reqbufs,
|
|
|
|
.poll = sh_mobile_ceu_poll,
|
|
|
|
.querycap = sh_mobile_ceu_querycap,
|
|
|
|
.set_bus_param = sh_mobile_ceu_set_bus_param,
|
|
|
|
.init_videobuf = sh_mobile_ceu_init_videobuf,
|
2009-08-25 07:44:15 -07:00
|
|
|
.controls = sh_mobile_ceu_controls,
|
|
|
|
.num_controls = ARRAY_SIZE(sh_mobile_ceu_controls),
|
2008-07-16 18:59:28 -07:00
|
|
|
};
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
struct bus_wait {
|
|
|
|
struct notifier_block notifier;
|
|
|
|
struct completion completion;
|
|
|
|
struct device *dev;
|
|
|
|
};
|
|
|
|
|
|
|
|
static int bus_notify(struct notifier_block *nb,
|
|
|
|
unsigned long action, void *data)
|
|
|
|
{
|
|
|
|
struct device *dev = data;
|
|
|
|
struct bus_wait *wait = container_of(nb, struct bus_wait, notifier);
|
|
|
|
|
|
|
|
if (wait->dev != dev)
|
|
|
|
return NOTIFY_DONE;
|
|
|
|
|
|
|
|
switch (action) {
|
|
|
|
case BUS_NOTIFY_UNBOUND_DRIVER:
|
|
|
|
/* Protect from module unloading */
|
|
|
|
wait_for_completion(&wait->completion);
|
|
|
|
return NOTIFY_OK;
|
|
|
|
}
|
|
|
|
return NOTIFY_DONE;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:43:33 -07:00
|
|
|
static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev)
|
2008-07-16 18:59:28 -07:00
|
|
|
{
|
|
|
|
struct sh_mobile_ceu_dev *pcdev;
|
|
|
|
struct resource *res;
|
|
|
|
void __iomem *base;
|
|
|
|
unsigned int irq;
|
|
|
|
int err = 0;
|
2010-07-26 08:13:34 -07:00
|
|
|
struct bus_wait wait = {
|
|
|
|
.completion = COMPLETION_INITIALIZER_ONSTACK(wait.completion),
|
|
|
|
.notifier.notifier_call = bus_notify,
|
|
|
|
};
|
|
|
|
struct device *csi2;
|
2008-07-16 18:59:28 -07:00
|
|
|
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
|
|
irq = platform_get_irq(pdev, 0);
|
2010-01-09 16:45:13 -07:00
|
|
|
if (!res || (int)irq <= 0) {
|
2008-07-16 18:59:28 -07:00
|
|
|
dev_err(&pdev->dev, "Not enough CEU platform resources.\n");
|
|
|
|
err = -ENODEV;
|
|
|
|
goto exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL);
|
|
|
|
if (!pcdev) {
|
|
|
|
dev_err(&pdev->dev, "Could not allocate pcdev\n");
|
|
|
|
err = -ENOMEM;
|
|
|
|
goto exit;
|
|
|
|
}
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&pcdev->capture);
|
|
|
|
spin_lock_init(&pcdev->lock);
|
|
|
|
|
|
|
|
pcdev->pdata = pdev->dev.platform_data;
|
|
|
|
if (!pcdev->pdata) {
|
|
|
|
err = -EINVAL;
|
|
|
|
dev_err(&pdev->dev, "CEU platform data not set.\n");
|
|
|
|
goto exit_kfree;
|
|
|
|
}
|
|
|
|
|
2009-04-24 08:55:18 -07:00
|
|
|
base = ioremap_nocache(res->start, resource_size(res));
|
2008-07-16 18:59:28 -07:00
|
|
|
if (!base) {
|
|
|
|
err = -ENXIO;
|
|
|
|
dev_err(&pdev->dev, "Unable to ioremap CEU registers.\n");
|
|
|
|
goto exit_kfree;
|
|
|
|
}
|
|
|
|
|
|
|
|
pcdev->irq = irq;
|
|
|
|
pcdev->base = base;
|
|
|
|
pcdev->video_limit = 0; /* only enabled if second resource exists */
|
|
|
|
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
|
|
|
if (res) {
|
|
|
|
err = dma_declare_coherent_memory(&pdev->dev, res->start,
|
|
|
|
res->start,
|
2009-04-24 08:55:18 -07:00
|
|
|
resource_size(res),
|
2008-07-16 18:59:28 -07:00
|
|
|
DMA_MEMORY_MAP |
|
|
|
|
DMA_MEMORY_EXCLUSIVE);
|
|
|
|
if (!err) {
|
|
|
|
dev_err(&pdev->dev, "Unable to declare CEU memory.\n");
|
|
|
|
err = -ENXIO;
|
|
|
|
goto exit_iounmap;
|
|
|
|
}
|
|
|
|
|
2009-04-24 08:55:18 -07:00
|
|
|
pcdev->video_limit = resource_size(res);
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
/* request irq */
|
|
|
|
err = request_irq(pcdev->irq, sh_mobile_ceu_irq, IRQF_DISABLED,
|
V4L/DVB (9521): V4L: struct device - replace bus_id with dev_name(), dev_set_name()
This patch is part of a larger patch series which will remove
the "char bus_id[20]" name string from struct device. The device
name is managed in the kobject anyway, and without any size
limitation, and just needlessly copied into "struct device".
To set and read the device name dev_name(dev) and dev_set_name(dev)
must be used. If your code uses static kobjects, which it shouldn't
do, "const char *init_name" can be used to statically provide the
name the registered device should have. At registration time, the
init_name field is cleared, to enforce the use of dev_name(dev) to
access the device name at a later time.
We need to get rid of all occurrences of bus_id in the entire tree
to be able to enable the new interface. Please apply this patch,
and possibly convert any remaining remaining occurrences of bus_id.
We want to submit a patch to -next, which will remove bus_id from
"struct device", to find the remaining pieces to convert, and finally
switch over to the new api, which will remove the 20 bytes array
and does no longer have a size limitation.
Thanks,
Kay
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-29 20:51:46 -07:00
|
|
|
dev_name(&pdev->dev), pcdev);
|
2008-07-16 18:59:28 -07:00
|
|
|
if (err) {
|
|
|
|
dev_err(&pdev->dev, "Unable to register CEU interrupt.\n");
|
|
|
|
goto exit_release_mem;
|
|
|
|
}
|
|
|
|
|
2009-08-14 03:49:17 -07:00
|
|
|
pm_suspend_ignore_children(&pdev->dev, true);
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
|
|
pm_runtime_resume(&pdev->dev);
|
2008-10-31 04:21:44 -07:00
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
pcdev->ici.priv = pcdev;
|
2009-08-25 07:43:33 -07:00
|
|
|
pcdev->ici.v4l2_dev.dev = &pdev->dev;
|
2008-07-16 18:59:28 -07:00
|
|
|
pcdev->ici.nr = pdev->id;
|
V4L/DVB (9521): V4L: struct device - replace bus_id with dev_name(), dev_set_name()
This patch is part of a larger patch series which will remove
the "char bus_id[20]" name string from struct device. The device
name is managed in the kobject anyway, and without any size
limitation, and just needlessly copied into "struct device".
To set and read the device name dev_name(dev) and dev_set_name(dev)
must be used. If your code uses static kobjects, which it shouldn't
do, "const char *init_name" can be used to statically provide the
name the registered device should have. At registration time, the
init_name field is cleared, to enforce the use of dev_name(dev) to
access the device name at a later time.
We need to get rid of all occurrences of bus_id in the entire tree
to be able to enable the new interface. Please apply this patch,
and possibly convert any remaining remaining occurrences of bus_id.
We want to submit a patch to -next, which will remove bus_id from
"struct device", to find the remaining pieces to convert, and finally
switch over to the new api, which will remove the 20 bytes array
and does no longer have a size limitation.
Thanks,
Kay
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-10-29 20:51:46 -07:00
|
|
|
pcdev->ici.drv_name = dev_name(&pdev->dev);
|
|
|
|
pcdev->ici.ops = &sh_mobile_ceu_host_ops;
|
2008-07-16 18:59:28 -07:00
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
/* CSI2 interfacing */
|
|
|
|
csi2 = pcdev->pdata->csi2_dev;
|
|
|
|
if (csi2) {
|
|
|
|
wait.dev = csi2;
|
|
|
|
|
|
|
|
err = bus_register_notifier(&platform_bus_type, &wait.notifier);
|
|
|
|
if (err < 0)
|
|
|
|
goto exit_free_clk;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* From this point the driver module will not unload, until
|
|
|
|
* we complete the completion.
|
|
|
|
*/
|
|
|
|
|
2010-10-20 06:14:57 -07:00
|
|
|
if (!csi2->driver) {
|
2010-07-26 08:13:34 -07:00
|
|
|
complete(&wait.completion);
|
|
|
|
/* Either too late, or probing failed */
|
|
|
|
bus_unregister_notifier(&platform_bus_type, &wait.notifier);
|
|
|
|
err = -ENXIO;
|
|
|
|
goto exit_free_clk;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The module is still loaded, in the worst case it is hanging
|
|
|
|
* in device release on our completion. So, _now_ dereferencing
|
|
|
|
* the "owner" is safe!
|
|
|
|
*/
|
|
|
|
|
|
|
|
err = try_module_get(csi2->driver->owner);
|
|
|
|
|
|
|
|
/* Let notifier complete, if it has been locked */
|
|
|
|
complete(&wait.completion);
|
|
|
|
bus_unregister_notifier(&platform_bus_type, &wait.notifier);
|
|
|
|
if (!err) {
|
|
|
|
err = -ENODEV;
|
|
|
|
goto exit_free_clk;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
err = soc_camera_host_register(&pcdev->ici);
|
|
|
|
if (err)
|
2010-07-26 08:13:34 -07:00
|
|
|
goto exit_module_put;
|
2008-07-16 18:59:28 -07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
2010-07-26 08:13:34 -07:00
|
|
|
exit_module_put:
|
|
|
|
if (csi2 && csi2->driver)
|
|
|
|
module_put(csi2->driver->owner);
|
2009-11-09 12:13:24 -07:00
|
|
|
exit_free_clk:
|
|
|
|
pm_runtime_disable(&pdev->dev);
|
2008-07-16 18:59:28 -07:00
|
|
|
free_irq(pcdev->irq, pcdev);
|
|
|
|
exit_release_mem:
|
|
|
|
if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
|
|
|
|
dma_release_declared_memory(&pdev->dev);
|
|
|
|
exit_iounmap:
|
|
|
|
iounmap(base);
|
|
|
|
exit_kfree:
|
|
|
|
kfree(pcdev);
|
|
|
|
exit:
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2009-08-25 07:43:33 -07:00
|
|
|
static int __devexit sh_mobile_ceu_remove(struct platform_device *pdev)
|
2008-07-16 18:59:28 -07:00
|
|
|
{
|
2009-04-24 08:55:48 -07:00
|
|
|
struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev);
|
|
|
|
struct sh_mobile_ceu_dev *pcdev = container_of(soc_host,
|
|
|
|
struct sh_mobile_ceu_dev, ici);
|
2010-07-26 08:13:34 -07:00
|
|
|
struct device *csi2 = pcdev->pdata->csi2_dev;
|
2008-07-16 18:59:28 -07:00
|
|
|
|
2009-04-24 08:55:48 -07:00
|
|
|
soc_camera_host_unregister(soc_host);
|
2009-11-09 12:13:24 -07:00
|
|
|
pm_runtime_disable(&pdev->dev);
|
2008-07-16 18:59:28 -07:00
|
|
|
free_irq(pcdev->irq, pcdev);
|
|
|
|
if (platform_get_resource(pdev, IORESOURCE_MEM, 1))
|
|
|
|
dma_release_declared_memory(&pdev->dev);
|
|
|
|
iounmap(pcdev->base);
|
2010-07-26 08:13:34 -07:00
|
|
|
if (csi2 && csi2->driver)
|
|
|
|
module_put(csi2->driver->owner);
|
2008-07-16 18:59:28 -07:00
|
|
|
kfree(pcdev);
|
2010-07-26 08:13:34 -07:00
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-08-14 03:49:17 -07:00
|
|
|
static int sh_mobile_ceu_runtime_nop(struct device *dev)
|
|
|
|
{
|
|
|
|
/* Runtime PM callback shared between ->runtime_suspend()
|
|
|
|
* and ->runtime_resume(). Simply returns success.
|
|
|
|
*
|
|
|
|
* This driver re-initializes all registers after
|
|
|
|
* pm_runtime_get_sync() anyway so there is no need
|
|
|
|
* to save and restore registers here.
|
|
|
|
*/
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-12-14 19:00:08 -07:00
|
|
|
static const struct dev_pm_ops sh_mobile_ceu_dev_pm_ops = {
|
2009-08-14 03:49:17 -07:00
|
|
|
.runtime_suspend = sh_mobile_ceu_runtime_nop,
|
|
|
|
.runtime_resume = sh_mobile_ceu_runtime_nop,
|
|
|
|
};
|
|
|
|
|
2008-07-16 18:59:28 -07:00
|
|
|
static struct platform_driver sh_mobile_ceu_driver = {
|
|
|
|
.driver = {
|
|
|
|
.name = "sh_mobile_ceu",
|
2009-08-14 03:49:17 -07:00
|
|
|
.pm = &sh_mobile_ceu_dev_pm_ops,
|
2008-07-16 18:59:28 -07:00
|
|
|
},
|
|
|
|
.probe = sh_mobile_ceu_probe,
|
2009-12-10 13:00:13 -07:00
|
|
|
.remove = __devexit_p(sh_mobile_ceu_remove),
|
2008-07-16 18:59:28 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
static int __init sh_mobile_ceu_init(void)
|
|
|
|
{
|
2010-07-26 08:13:34 -07:00
|
|
|
/* Whatever return code */
|
|
|
|
request_module("sh_mobile_csi2");
|
2008-07-16 18:59:28 -07:00
|
|
|
return platform_driver_register(&sh_mobile_ceu_driver);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit sh_mobile_ceu_exit(void)
|
|
|
|
{
|
2008-08-01 15:48:51 -07:00
|
|
|
platform_driver_unregister(&sh_mobile_ceu_driver);
|
2008-07-16 18:59:28 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
module_init(sh_mobile_ceu_init);
|
|
|
|
module_exit(sh_mobile_ceu_exit);
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION("SuperH Mobile CEU driver");
|
|
|
|
MODULE_AUTHOR("Magnus Damm");
|
|
|
|
MODULE_LICENSE("GPL");
|
2009-08-25 07:28:22 -07:00
|
|
|
MODULE_ALIAS("platform:sh_mobile_ceu");
|