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linux/drivers/media/video/pms.c
Tejun Heo 5a0e3ad6af 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>
2010-03-30 22:02:32 +09:00

1165 lines
26 KiB
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/*
* Media Vision Pro Movie Studio
* or
* "all you need is an I2C bus some RAM and a prayer"
*
* This draws heavily on code
*
* (c) Wolfgang Koehler, wolf@first.gmd.de, Dec. 1994
* Kiefernring 15
* 14478 Potsdam, Germany
*
* Most of this code is directly derived from his userspace driver.
* His driver works so send any reports to alan@lxorguk.ukuu.org.uk
* unless the userspace driver also doesn't work for you...
*
* Changes:
* 25-11-2009 Hans Verkuil <hverkuil@xs4all.nl>
* - converted to version 2 of the V4L API.
* 08/07/2003 Daniele Bellucci <bellucda@tiscali.it>
* - pms_capture: report back -EFAULT
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/version.h>
#include <linux/mutex.h>
#include <linux/uaccess.h>
#include <asm/io.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-device.h>
MODULE_LICENSE("GPL");
#define MOTOROLA 1
#define PHILIPS2 2 /* SAA7191 */
#define PHILIPS1 3
#define MVVMEMORYWIDTH 0x40 /* 512 bytes */
struct i2c_info {
u8 slave;
u8 sub;
u8 data;
u8 hits;
};
struct pms {
struct v4l2_device v4l2_dev;
struct video_device vdev;
int height;
int width;
int depth;
int input;
s32 brightness, saturation, hue, contrast;
unsigned long in_use;
struct mutex lock;
int i2c_count;
struct i2c_info i2cinfo[64];
int decoder;
int standard; /* 0 - auto 1 - ntsc 2 - pal 3 - secam */
v4l2_std_id std;
int io;
int data;
void __iomem *mem;
};
static struct pms pms_card;
/*
* I/O ports and Shared Memory
*/
static int io_port = 0x250;
module_param(io_port, int, 0);
static int mem_base = 0xc8000;
module_param(mem_base, int, 0);
static int video_nr = -1;
module_param(video_nr, int, 0);
static inline void mvv_write(struct pms *dev, u8 index, u8 value)
{
outw(index | (value << 8), dev->io);
}
static inline u8 mvv_read(struct pms *dev, u8 index)
{
outb(index, dev->io);
return inb(dev->data);
}
static int pms_i2c_stat(struct pms *dev, u8 slave)
{
int counter = 0;
int i;
outb(0x28, dev->io);
while ((inb(dev->data) & 0x01) == 0)
if (counter++ == 256)
break;
while ((inb(dev->data) & 0x01) != 0)
if (counter++ == 256)
break;
outb(slave, dev->io);
counter = 0;
while ((inb(dev->data) & 0x01) == 0)
if (counter++ == 256)
break;
while ((inb(dev->data) & 0x01) != 0)
if (counter++ == 256)
break;
for (i = 0; i < 12; i++) {
char st = inb(dev->data);
if ((st & 2) != 0)
return -1;
if ((st & 1) == 0)
break;
}
outb(0x29, dev->io);
return inb(dev->data);
}
static int pms_i2c_write(struct pms *dev, u16 slave, u16 sub, u16 data)
{
int skip = 0;
int count;
int i;
for (i = 0; i < dev->i2c_count; i++) {
if ((dev->i2cinfo[i].slave == slave) &&
(dev->i2cinfo[i].sub == sub)) {
if (dev->i2cinfo[i].data == data)
skip = 1;
dev->i2cinfo[i].data = data;
i = dev->i2c_count + 1;
}
}
if (i == dev->i2c_count && dev->i2c_count < 64) {
dev->i2cinfo[dev->i2c_count].slave = slave;
dev->i2cinfo[dev->i2c_count].sub = sub;
dev->i2cinfo[dev->i2c_count].data = data;
dev->i2c_count++;
}
if (skip)
return 0;
mvv_write(dev, 0x29, sub);
mvv_write(dev, 0x2A, data);
mvv_write(dev, 0x28, slave);
outb(0x28, dev->io);
count = 0;
while ((inb(dev->data) & 1) == 0)
if (count > 255)
break;
while ((inb(dev->data) & 1) != 0)
if (count > 255)
break;
count = inb(dev->data);
if (count & 2)
return -1;
return count;
}
static int pms_i2c_read(struct pms *dev, int slave, int sub)
{
int i;
for (i = 0; i < dev->i2c_count; i++) {
if (dev->i2cinfo[i].slave == slave && dev->i2cinfo[i].sub == sub)
return dev->i2cinfo[i].data;
}
return 0;
}
static void pms_i2c_andor(struct pms *dev, int slave, int sub, int and, int or)
{
u8 tmp;
tmp = pms_i2c_read(dev, slave, sub);
tmp = (tmp & and) | or;
pms_i2c_write(dev, slave, sub, tmp);
}
/*
* Control functions
*/
static void pms_videosource(struct pms *dev, short source)
{
switch (dev->decoder) {
case MOTOROLA:
break;
case PHILIPS2:
pms_i2c_andor(dev, 0x8a, 0x06, 0x7f, source ? 0x80 : 0);
break;
case PHILIPS1:
break;
}
mvv_write(dev, 0x2E, 0x31);
/* Was: mvv_write(dev, 0x2E, source ? 0x31 : 0x30);
But could not make this work correctly. Only Composite input
worked for me. */
}
static void pms_hue(struct pms *dev, short hue)
{
switch (dev->decoder) {
case MOTOROLA:
pms_i2c_write(dev, 0x8a, 0x00, hue);
break;
case PHILIPS2:
pms_i2c_write(dev, 0x8a, 0x07, hue);
break;
case PHILIPS1:
pms_i2c_write(dev, 0x42, 0x07, hue);
break;
}
}
static void pms_saturation(struct pms *dev, short sat)
{
switch (dev->decoder) {
case MOTOROLA:
pms_i2c_write(dev, 0x8a, 0x00, sat);
break;
case PHILIPS1:
pms_i2c_write(dev, 0x42, 0x12, sat);
break;
}
}
static void pms_contrast(struct pms *dev, short contrast)
{
switch (dev->decoder) {
case MOTOROLA:
pms_i2c_write(dev, 0x8a, 0x00, contrast);
break;
case PHILIPS1:
pms_i2c_write(dev, 0x42, 0x13, contrast);
break;
}
}
static void pms_brightness(struct pms *dev, short brightness)
{
switch (dev->decoder) {
case MOTOROLA:
pms_i2c_write(dev, 0x8a, 0x00, brightness);
pms_i2c_write(dev, 0x8a, 0x00, brightness);
pms_i2c_write(dev, 0x8a, 0x00, brightness);
break;
case PHILIPS1:
pms_i2c_write(dev, 0x42, 0x19, brightness);
break;
}
}
static void pms_format(struct pms *dev, short format)
{
int target;
dev->standard = format;
if (dev->decoder == PHILIPS1)
target = 0x42;
else if (dev->decoder == PHILIPS2)
target = 0x8a;
else
return;
switch (format) {
case 0: /* Auto */
pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00);
pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x80);
break;
case 1: /* NTSC */
pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00);
pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x40);
break;
case 2: /* PAL */
pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x00);
pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x00);
break;
case 3: /* SECAM */
pms_i2c_andor(dev, target, 0x0d, 0xfe, 0x01);
pms_i2c_andor(dev, target, 0x0f, 0x3f, 0x00);
break;
}
}
#ifdef FOR_FUTURE_EXPANSION
/*
* These features of the PMS card are not currently exposes. They
* could become a private v4l ioctl for PMSCONFIG or somesuch if
* people need it. We also don't yet use the PMS interrupt.
*/
static void pms_hstart(struct pms *dev, short start)
{
switch (dev->decoder) {
case PHILIPS1:
pms_i2c_write(dev, 0x8a, 0x05, start);
pms_i2c_write(dev, 0x8a, 0x18, start);
break;
case PHILIPS2:
pms_i2c_write(dev, 0x42, 0x05, start);
pms_i2c_write(dev, 0x42, 0x18, start);
break;
}
}
/*
* Bandpass filters
*/
static void pms_bandpass(struct pms *dev, short pass)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x06, 0xcf, (pass & 0x03) << 4);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x06, 0xcf, (pass & 0x03) << 4);
}
static void pms_antisnow(struct pms *dev, short snow)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x06, 0xf3, (snow & 0x03) << 2);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x06, 0xf3, (snow & 0x03) << 2);
}
static void pms_sharpness(struct pms *dev, short sharp)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x06, 0xfc, sharp & 0x03);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x06, 0xfc, sharp & 0x03);
}
static void pms_chromaagc(struct pms *dev, short agc)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x0c, 0x9f, (agc & 0x03) << 5);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x0c, 0x9f, (agc & 0x03) << 5);
}
static void pms_vertnoise(struct pms *dev, short noise)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x10, 0xfc, noise & 3);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x10, 0xfc, noise & 3);
}
static void pms_forcecolour(struct pms *dev, short colour)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x0c, 0x7f, (colour & 1) << 7);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x0c, 0x7, (colour & 1) << 7);
}
static void pms_antigamma(struct pms *dev, short gamma)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0xb8, 0x00, 0x7f, (gamma & 1) << 7);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x20, 0x7, (gamma & 1) << 7);
}
static void pms_prefilter(struct pms *dev, short filter)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x06, 0xbf, (filter & 1) << 6);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x06, 0xbf, (filter & 1) << 6);
}
static void pms_hfilter(struct pms *dev, short filter)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0xb8, 0x04, 0x1f, (filter & 7) << 5);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x24, 0x1f, (filter & 7) << 5);
}
static void pms_vfilter(struct pms *dev, short filter)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0xb8, 0x08, 0x9f, (filter & 3) << 5);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x28, 0x9f, (filter & 3) << 5);
}
static void pms_killcolour(struct pms *dev, short colour)
{
if (dev->decoder == PHILIPS2) {
pms_i2c_andor(dev, 0x8a, 0x08, 0x07, (colour & 0x1f) << 3);
pms_i2c_andor(dev, 0x8a, 0x09, 0x07, (colour & 0x1f) << 3);
} else if (dev->decoder == PHILIPS1) {
pms_i2c_andor(dev, 0x42, 0x08, 0x07, (colour & 0x1f) << 3);
pms_i2c_andor(dev, 0x42, 0x09, 0x07, (colour & 0x1f) << 3);
}
}
static void pms_chromagain(struct pms *dev, short chroma)
{
if (dev->decoder == PHILIPS2)
pms_i2c_write(dev, 0x8a, 0x11, chroma);
else if (dev->decoder == PHILIPS1)
pms_i2c_write(dev, 0x42, 0x11, chroma);
}
static void pms_spacialcompl(struct pms *dev, short data)
{
mvv_write(dev, 0x3b, data);
}
static void pms_spacialcomph(struct pms *dev, short data)
{
mvv_write(dev, 0x3a, data);
}
static void pms_vstart(struct pms *dev, short start)
{
mvv_write(dev, 0x16, start);
mvv_write(dev, 0x17, (start >> 8) & 0x01);
}
#endif
static void pms_secamcross(struct pms *dev, short cross)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x0f, 0xdf, (cross & 1) << 5);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x0f, 0xdf, (cross & 1) << 5);
}
static void pms_swsense(struct pms *dev, short sense)
{
if (dev->decoder == PHILIPS2) {
pms_i2c_write(dev, 0x8a, 0x0a, sense);
pms_i2c_write(dev, 0x8a, 0x0b, sense);
} else if (dev->decoder == PHILIPS1) {
pms_i2c_write(dev, 0x42, 0x0a, sense);
pms_i2c_write(dev, 0x42, 0x0b, sense);
}
}
static void pms_framerate(struct pms *dev, short frr)
{
int fps = (dev->std & V4L2_STD_525_60) ? 30 : 25;
if (frr == 0)
return;
fps = fps/frr;
mvv_write(dev, 0x14, 0x80 | fps);
mvv_write(dev, 0x15, 1);
}
static void pms_vert(struct pms *dev, u8 deciden, u8 decinum)
{
mvv_write(dev, 0x1c, deciden); /* Denominator */
mvv_write(dev, 0x1d, decinum); /* Numerator */
}
/*
* Turn 16bit ratios into best small ratio the chipset can grok
*/
static void pms_vertdeci(struct pms *dev, unsigned short decinum, unsigned short deciden)
{
/* Knock it down by / 5 once */
if (decinum % 5 == 0) {
deciden /= 5;
decinum /= 5;
}
/*
* 3's
*/
while (decinum % 3 == 0 && deciden % 3 == 0) {
deciden /= 3;
decinum /= 3;
}
/*
* 2's
*/
while (decinum % 2 == 0 && deciden % 2 == 0) {
decinum /= 2;
deciden /= 2;
}
/*
* Fudgyify
*/
while (deciden > 32) {
deciden /= 2;
decinum = (decinum + 1) / 2;
}
if (deciden == 32)
deciden--;
pms_vert(dev, deciden, decinum);
}
static void pms_horzdeci(struct pms *dev, short decinum, short deciden)
{
if (decinum <= 512) {
if (decinum % 5 == 0) {
decinum /= 5;
deciden /= 5;
}
} else {
decinum = 512;
deciden = 640; /* 768 would be ideal */
}
while (((decinum | deciden) & 1) == 0) {
decinum >>= 1;
deciden >>= 1;
}
while (deciden > 32) {
deciden >>= 1;
decinum = (decinum + 1) >> 1;
}
if (deciden == 32)
deciden--;
mvv_write(dev, 0x24, 0x80 | deciden);
mvv_write(dev, 0x25, decinum);
}
static void pms_resolution(struct pms *dev, short width, short height)
{
int fg_height;
fg_height = height;
if (fg_height > 280)
fg_height = 280;
mvv_write(dev, 0x18, fg_height);
mvv_write(dev, 0x19, fg_height >> 8);
if (dev->std & V4L2_STD_525_60) {
mvv_write(dev, 0x1a, 0xfc);
mvv_write(dev, 0x1b, 0x00);
if (height > fg_height)
pms_vertdeci(dev, 240, 240);
else
pms_vertdeci(dev, fg_height, 240);
} else {
mvv_write(dev, 0x1a, 0x1a);
mvv_write(dev, 0x1b, 0x01);
if (fg_height > 256)
pms_vertdeci(dev, 270, 270);
else
pms_vertdeci(dev, fg_height, 270);
}
mvv_write(dev, 0x12, 0);
mvv_write(dev, 0x13, MVVMEMORYWIDTH);
mvv_write(dev, 0x42, 0x00);
mvv_write(dev, 0x43, 0x00);
mvv_write(dev, 0x44, MVVMEMORYWIDTH);
mvv_write(dev, 0x22, width + 8);
mvv_write(dev, 0x23, (width + 8) >> 8);
if (dev->std & V4L2_STD_525_60)
pms_horzdeci(dev, width, 640);
else
pms_horzdeci(dev, width + 8, 768);
mvv_write(dev, 0x30, mvv_read(dev, 0x30) & 0xfe);
mvv_write(dev, 0x08, mvv_read(dev, 0x08) | 0x01);
mvv_write(dev, 0x01, mvv_read(dev, 0x01) & 0xfd);
mvv_write(dev, 0x32, 0x00);
mvv_write(dev, 0x33, MVVMEMORYWIDTH);
}
/*
* Set Input
*/
static void pms_vcrinput(struct pms *dev, short input)
{
if (dev->decoder == PHILIPS2)
pms_i2c_andor(dev, 0x8a, 0x0d, 0x7f, (input & 1) << 7);
else if (dev->decoder == PHILIPS1)
pms_i2c_andor(dev, 0x42, 0x0d, 0x7f, (input & 1) << 7);
}
static int pms_capture(struct pms *dev, char __user *buf, int rgb555, int count)
{
int y;
int dw = 2 * dev->width;
char tmp[dw + 32]; /* using a temp buffer is faster than direct */
int cnt = 0;
int len = 0;
unsigned char r8 = 0x5; /* value for reg8 */
if (rgb555)
r8 |= 0x20; /* else use untranslated rgb = 565 */
mvv_write(dev, 0x08, r8); /* capture rgb555/565, init DRAM, PC enable */
/* printf("%d %d %d %d %d %x %x\n",width,height,voff,nom,den,mvv_buf); */
for (y = 0; y < dev->height; y++) {
writeb(0, dev->mem); /* synchronisiert neue Zeile */
/*
* This is in truth a fifo, be very careful as if you
* forgot this odd things will occur 8)
*/
memcpy_fromio(tmp, dev->mem, dw + 32); /* discard 16 word */
cnt -= dev->height;
while (cnt <= 0) {
/*
* Don't copy too far
*/
int dt = dw;
if (dt + len > count)
dt = count - len;
cnt += dev->height;
if (copy_to_user(buf, tmp + 32, dt))
return len ? len : -EFAULT;
buf += dt;
len += dt;
}
}
return len;
}
/*
* Video4linux interfacing
*/
static int pms_querycap(struct file *file, void *priv,
struct v4l2_capability *vcap)
{
struct pms *dev = video_drvdata(file);
strlcpy(vcap->driver, dev->v4l2_dev.name, sizeof(vcap->driver));
strlcpy(vcap->card, "Mediavision PMS", sizeof(vcap->card));
strlcpy(vcap->bus_info, "ISA", sizeof(vcap->bus_info));
vcap->version = KERNEL_VERSION(0, 0, 3);
vcap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE;
return 0;
}
static int pms_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
{
static const char *inputs[4] = {
"Composite",
"S-Video",
"Composite (VCR)",
"S-Video (VCR)"
};
if (vin->index > 3)
return -EINVAL;
strlcpy(vin->name, inputs[vin->index], sizeof(vin->name));
vin->type = V4L2_INPUT_TYPE_CAMERA;
vin->audioset = 0;
vin->tuner = 0;
vin->std = V4L2_STD_ALL;
vin->status = 0;
return 0;
}
static int pms_g_input(struct file *file, void *fh, unsigned int *inp)
{
struct pms *dev = video_drvdata(file);
*inp = dev->input;
return 0;
}
static int pms_s_input(struct file *file, void *fh, unsigned int inp)
{
struct pms *dev = video_drvdata(file);
if (inp > 3)
return -EINVAL;
mutex_lock(&dev->lock);
dev->input = inp;
pms_videosource(dev, inp & 1);
pms_vcrinput(dev, inp >> 1);
mutex_unlock(&dev->lock);
return 0;
}
static int pms_g_std(struct file *file, void *fh, v4l2_std_id *std)
{
struct pms *dev = video_drvdata(file);
*std = dev->std;
return 0;
}
static int pms_s_std(struct file *file, void *fh, v4l2_std_id *std)
{
struct pms *dev = video_drvdata(file);
int ret = 0;
dev->std = *std;
mutex_lock(&dev->lock);
if (dev->std & V4L2_STD_NTSC) {
pms_framerate(dev, 30);
pms_secamcross(dev, 0);
pms_format(dev, 1);
} else if (dev->std & V4L2_STD_PAL) {
pms_framerate(dev, 25);
pms_secamcross(dev, 0);
pms_format(dev, 2);
} else if (dev->std & V4L2_STD_SECAM) {
pms_framerate(dev, 25);
pms_secamcross(dev, 1);
pms_format(dev, 2);
} else {
ret = -EINVAL;
}
/*
switch (v->mode) {
case VIDEO_MODE_AUTO:
pms_framerate(dev, 25);
pms_secamcross(dev, 0);
pms_format(dev, 0);
break;
}*/
mutex_unlock(&dev->lock);
return 0;
}
static int pms_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
switch (qc->id) {
case V4L2_CID_BRIGHTNESS:
return v4l2_ctrl_query_fill(qc, 0, 255, 1, 139);
case V4L2_CID_CONTRAST:
return v4l2_ctrl_query_fill(qc, 0, 255, 1, 70);
case V4L2_CID_SATURATION:
return v4l2_ctrl_query_fill(qc, 0, 255, 1, 64);
case V4L2_CID_HUE:
return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0);
}
return -EINVAL;
}
static int pms_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct pms *dev = video_drvdata(file);
int ret = 0;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->value = dev->brightness;
break;
case V4L2_CID_CONTRAST:
ctrl->value = dev->contrast;
break;
case V4L2_CID_SATURATION:
ctrl->value = dev->saturation;
break;
case V4L2_CID_HUE:
ctrl->value = dev->hue;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int pms_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct pms *dev = video_drvdata(file);
int ret = 0;
mutex_lock(&dev->lock);
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
dev->brightness = ctrl->value;
pms_brightness(dev, dev->brightness);
break;
case V4L2_CID_CONTRAST:
dev->contrast = ctrl->value;
pms_contrast(dev, dev->contrast);
break;
case V4L2_CID_SATURATION:
dev->saturation = ctrl->value;
pms_saturation(dev, dev->saturation);
break;
case V4L2_CID_HUE:
dev->hue = ctrl->value;
pms_hue(dev, dev->hue);
break;
default:
ret = -EINVAL;
break;
}
mutex_unlock(&dev->lock);
return ret;
}
static int pms_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
struct pms *dev = video_drvdata(file);
struct v4l2_pix_format *pix = &fmt->fmt.pix;
pix->width = dev->width;
pix->height = dev->height;
pix->pixelformat = dev->width == 15 ?
V4L2_PIX_FMT_RGB555 : V4L2_PIX_FMT_RGB565;
pix->field = V4L2_FIELD_NONE;
pix->bytesperline = 2 * dev->width;
pix->sizeimage = 2 * dev->width * dev->height;
/* Just a guess */
pix->colorspace = V4L2_COLORSPACE_SRGB;
return 0;
}
static int pms_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
struct v4l2_pix_format *pix = &fmt->fmt.pix;
if (pix->height < 16 || pix->height > 480)
return -EINVAL;
if (pix->width < 16 || pix->width > 640)
return -EINVAL;
if (pix->pixelformat != V4L2_PIX_FMT_RGB555 &&
pix->pixelformat != V4L2_PIX_FMT_RGB565)
return -EINVAL;
pix->field = V4L2_FIELD_NONE;
pix->bytesperline = 2 * pix->width;
pix->sizeimage = 2 * pix->width * pix->height;
/* Just a guess */
pix->colorspace = V4L2_COLORSPACE_SRGB;
return 0;
}
static int pms_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
struct pms *dev = video_drvdata(file);
struct v4l2_pix_format *pix = &fmt->fmt.pix;
int ret = pms_try_fmt_vid_cap(file, fh, fmt);
if (ret)
return ret;
mutex_lock(&dev->lock);
dev->width = pix->width;
dev->height = pix->height;
dev->depth = (pix->pixelformat == V4L2_PIX_FMT_RGB555) ? 15 : 16;
pms_resolution(dev, dev->width, dev->height);
/* Ok we figured out what to use from our wide choice */
mutex_unlock(&dev->lock);
return 0;
}
static int pms_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt)
{
static struct v4l2_fmtdesc formats[] = {
{ 0, 0, 0,
"RGB 5:5:5", V4L2_PIX_FMT_RGB555,
{ 0, 0, 0, 0 }
},
{ 0, 0, 0,
"RGB 5:6:5", V4L2_PIX_FMT_RGB565,
{ 0, 0, 0, 0 }
},
};
enum v4l2_buf_type type = fmt->type;
if (fmt->index > 1)
return -EINVAL;
*fmt = formats[fmt->index];
fmt->type = type;
return 0;
}
static ssize_t pms_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
struct pms *dev = video_drvdata(file);
int len;
mutex_lock(&dev->lock);
len = pms_capture(dev, buf, (dev->depth == 15), count);
mutex_unlock(&dev->lock);
return len;
}
static int pms_exclusive_open(struct file *file)
{
struct pms *dev = video_drvdata(file);
return test_and_set_bit(0, &dev->in_use) ? -EBUSY : 0;
}
static int pms_exclusive_release(struct file *file)
{
struct pms *dev = video_drvdata(file);
clear_bit(0, &dev->in_use);
return 0;
}
static const struct v4l2_file_operations pms_fops = {
.owner = THIS_MODULE,
.open = pms_exclusive_open,
.release = pms_exclusive_release,
.ioctl = video_ioctl2,
.read = pms_read,
};
static const struct v4l2_ioctl_ops pms_ioctl_ops = {
.vidioc_querycap = pms_querycap,
.vidioc_g_input = pms_g_input,
.vidioc_s_input = pms_s_input,
.vidioc_enum_input = pms_enum_input,
.vidioc_g_std = pms_g_std,
.vidioc_s_std = pms_s_std,
.vidioc_queryctrl = pms_queryctrl,
.vidioc_g_ctrl = pms_g_ctrl,
.vidioc_s_ctrl = pms_s_ctrl,
.vidioc_enum_fmt_vid_cap = pms_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = pms_g_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = pms_s_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = pms_try_fmt_vid_cap,
};
/*
* Probe for and initialise the Mediavision PMS
*/
static int init_mediavision(struct pms *dev)
{
int id;
int idec, decst;
int i;
static const unsigned char i2c_defs[] = {
0x4c, 0x30, 0x00, 0xe8,
0xb6, 0xe2, 0x00, 0x00,
0xff, 0xff, 0x00, 0x00,
0x00, 0x00, 0x78, 0x98,
0x00, 0x00, 0x00, 0x00,
0x34, 0x0a, 0xf4, 0xce,
0xe4
};
dev->mem = ioremap(mem_base, 0x800);
if (!dev->mem)
return -ENOMEM;
if (!request_region(0x9a01, 1, "Mediavision PMS config")) {
printk(KERN_WARNING "mediavision: unable to detect: 0x9a01 in use.\n");
iounmap(dev->mem);
return -EBUSY;
}
if (!request_region(dev->io, 3, "Mediavision PMS")) {
printk(KERN_WARNING "mediavision: I/O port %d in use.\n", dev->io);
release_region(0x9a01, 1);
iounmap(dev->mem);
return -EBUSY;
}
outb(0xb8, 0x9a01); /* Unlock */
outb(dev->io >> 4, 0x9a01); /* Set IO port */
id = mvv_read(dev, 3);
decst = pms_i2c_stat(dev, 0x43);
if (decst != -1)
idec = 2;
else if (pms_i2c_stat(dev, 0xb9) != -1)
idec = 3;
else if (pms_i2c_stat(dev, 0x8b) != -1)
idec = 1;
else
idec = 0;
printk(KERN_INFO "PMS type is %d\n", idec);
if (idec == 0) {
release_region(dev->io, 3);
release_region(0x9a01, 1);
iounmap(dev->mem);
return -ENODEV;
}
/*
* Ok we have a PMS of some sort
*/
mvv_write(dev, 0x04, mem_base >> 12); /* Set the memory area */
/* Ok now load the defaults */
for (i = 0; i < 0x19; i++) {
if (i2c_defs[i] == 0xff)
pms_i2c_andor(dev, 0x8a, i, 0x07, 0x00);
else
pms_i2c_write(dev, 0x8a, i, i2c_defs[i]);
}
pms_i2c_write(dev, 0xb8, 0x00, 0x12);
pms_i2c_write(dev, 0xb8, 0x04, 0x00);
pms_i2c_write(dev, 0xb8, 0x07, 0x00);
pms_i2c_write(dev, 0xb8, 0x08, 0x00);
pms_i2c_write(dev, 0xb8, 0x09, 0xff);
pms_i2c_write(dev, 0xb8, 0x0a, 0x00);
pms_i2c_write(dev, 0xb8, 0x0b, 0x10);
pms_i2c_write(dev, 0xb8, 0x10, 0x03);
mvv_write(dev, 0x01, 0x00);
mvv_write(dev, 0x05, 0xa0);
mvv_write(dev, 0x08, 0x25);
mvv_write(dev, 0x09, 0x00);
mvv_write(dev, 0x0a, 0x20 | MVVMEMORYWIDTH);
mvv_write(dev, 0x10, 0x02);
mvv_write(dev, 0x1e, 0x0c);
mvv_write(dev, 0x1f, 0x03);
mvv_write(dev, 0x26, 0x06);
mvv_write(dev, 0x2b, 0x00);
mvv_write(dev, 0x2c, 0x20);
mvv_write(dev, 0x2d, 0x00);
mvv_write(dev, 0x2f, 0x70);
mvv_write(dev, 0x32, 0x00);
mvv_write(dev, 0x33, MVVMEMORYWIDTH);
mvv_write(dev, 0x34, 0x00);
mvv_write(dev, 0x35, 0x00);
mvv_write(dev, 0x3a, 0x80);
mvv_write(dev, 0x3b, 0x10);
mvv_write(dev, 0x20, 0x00);
mvv_write(dev, 0x21, 0x00);
mvv_write(dev, 0x30, 0x22);
return 0;
}
/*
* Initialization and module stuff
*/
#ifndef MODULE
static int enable;
module_param(enable, int, 0);
#endif
static int __init pms_init(void)
{
struct pms *dev = &pms_card;
struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
int res;
strlcpy(v4l2_dev->name, "pms", sizeof(v4l2_dev->name));
v4l2_info(v4l2_dev, "Mediavision Pro Movie Studio driver 0.03\n");
#ifndef MODULE
if (!enable) {
v4l2_err(v4l2_dev,
"PMS: not enabled, use pms.enable=1 to probe\n");
return -ENODEV;
}
#endif
dev->decoder = PHILIPS2;
dev->io = io_port;
dev->data = io_port + 1;
if (init_mediavision(dev)) {
v4l2_err(v4l2_dev, "Board not found.\n");
return -ENODEV;
}
res = v4l2_device_register(NULL, v4l2_dev);
if (res < 0) {
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
return res;
}
strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
dev->vdev.v4l2_dev = v4l2_dev;
dev->vdev.fops = &pms_fops;
dev->vdev.ioctl_ops = &pms_ioctl_ops;
dev->vdev.release = video_device_release_empty;
video_set_drvdata(&dev->vdev, dev);
mutex_init(&dev->lock);
dev->std = V4L2_STD_NTSC_M;
dev->height = 240;
dev->width = 320;
dev->depth = 15;
dev->brightness = 139;
dev->contrast = 70;
dev->hue = 0;
dev->saturation = 64;
pms_swsense(dev, 75);
pms_resolution(dev, 320, 240);
pms_videosource(dev, 0);
pms_vcrinput(dev, 0);
if (video_register_device(&dev->vdev, VFL_TYPE_GRABBER, video_nr) < 0) {
v4l2_device_unregister(&dev->v4l2_dev);
release_region(dev->io, 3);
release_region(0x9a01, 1);
iounmap(dev->mem);
return -EINVAL;
}
return 0;
}
static void __exit pms_exit(void)
{
struct pms *dev = &pms_card;
video_unregister_device(&dev->vdev);
release_region(dev->io, 3);
release_region(0x9a01, 1);
iounmap(dev->mem);
}
module_init(pms_init);
module_exit(pms_exit);
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