forked from Minki/linux
V4L/DVB (10893): radio-zoltrix: convert to v4l2_device.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
f1bfe89b67
commit
ec632c8a10
@ -33,33 +33,17 @@
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#include <linux/init.h> /* Initdata */
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#include <linux/ioport.h> /* request_region */
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#include <linux/delay.h> /* udelay, msleep */
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#include <asm/io.h> /* outb, outb_p */
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#include <asm/uaccess.h> /* copy to/from user */
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#include <linux/videodev2.h> /* kernel radio structs */
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#include <media/v4l2-common.h>
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#include <linux/mutex.h>
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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#include <linux/io.h> /* outb, outb_p */
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#include <linux/uaccess.h> /* copy to/from user */
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <linux/version.h> /* for KERNEL_VERSION MACRO */
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#define RADIO_VERSION KERNEL_VERSION(0,0,2)
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static struct v4l2_queryctrl radio_qctrl[] = {
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{
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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},{
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.id = V4L2_CID_AUDIO_VOLUME,
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.name = "Volume",
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.minimum = 0,
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.maximum = 65535,
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.step = 4096,
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.default_value = 0xff,
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.type = V4L2_CTRL_TYPE_INTEGER,
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}
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};
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MODULE_AUTHOR("C.van Schaik");
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MODULE_DESCRIPTION("A driver for the Zoltrix Radio Plus.");
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MODULE_LICENSE("GPL");
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#ifndef CONFIG_RADIO_ZOLTRIX_PORT
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#define CONFIG_RADIO_ZOLTRIX_PORT -1
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@ -68,9 +52,16 @@ static struct v4l2_queryctrl radio_qctrl[] = {
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static int io = CONFIG_RADIO_ZOLTRIX_PORT;
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static int radio_nr = -1;
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struct zol_device {
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unsigned long in_use;
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int port;
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module_param(io, int, 0);
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MODULE_PARM_DESC(io, "I/O address of the Zoltrix Radio Plus (0x20c or 0x30c)");
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module_param(radio_nr, int, 0);
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#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
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struct zoltrix {
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struct v4l2_device v4l2_dev;
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struct video_device vdev;
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int io;
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int curvol;
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unsigned long curfreq;
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int muted;
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@ -78,161 +69,158 @@ struct zol_device {
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struct mutex lock;
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};
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static int zol_setvol(struct zol_device *dev, int vol)
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static struct zoltrix zoltrix_card;
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static int zol_setvol(struct zoltrix *zol, int vol)
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{
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dev->curvol = vol;
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if (dev->muted)
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zol->curvol = vol;
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if (zol->muted)
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return 0;
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mutex_lock(&dev->lock);
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mutex_lock(&zol->lock);
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if (vol == 0) {
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outb(0, io);
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outb(0, io);
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inb(io + 3); /* Zoltrix needs to be read to confirm */
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mutex_unlock(&dev->lock);
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outb(0, zol->io);
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outb(0, zol->io);
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inb(zol->io + 3); /* Zoltrix needs to be read to confirm */
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mutex_unlock(&zol->lock);
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return 0;
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}
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outb(dev->curvol-1, io);
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outb(zol->curvol-1, zol->io);
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msleep(10);
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inb(io + 2);
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mutex_unlock(&dev->lock);
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inb(zol->io + 2);
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mutex_unlock(&zol->lock);
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return 0;
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}
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static void zol_mute(struct zol_device *dev)
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static void zol_mute(struct zoltrix *zol)
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{
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dev->muted = 1;
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mutex_lock(&dev->lock);
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outb(0, io);
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outb(0, io);
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inb(io + 3); /* Zoltrix needs to be read to confirm */
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mutex_unlock(&dev->lock);
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zol->muted = 1;
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mutex_lock(&zol->lock);
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outb(0, zol->io);
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outb(0, zol->io);
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inb(zol->io + 3); /* Zoltrix needs to be read to confirm */
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mutex_unlock(&zol->lock);
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}
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static void zol_unmute(struct zol_device *dev)
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static void zol_unmute(struct zoltrix *zol)
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{
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dev->muted = 0;
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zol_setvol(dev, dev->curvol);
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zol->muted = 0;
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zol_setvol(zol, zol->curvol);
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}
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static int zol_setfreq(struct zol_device *dev, unsigned long freq)
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static int zol_setfreq(struct zoltrix *zol, unsigned long freq)
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{
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/* tunes the radio to the desired frequency */
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struct v4l2_device *v4l2_dev = &zol->v4l2_dev;
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unsigned long long bitmask, f, m;
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unsigned int stereo = dev->stereo;
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unsigned int stereo = zol->stereo;
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int i;
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if (freq == 0) {
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printk(KERN_WARNING "zoltrix: received zero freq. Failed to set.\n");
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v4l2_warn(v4l2_dev, "cannot set a frequency of 0.\n");
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return -EINVAL;
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}
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m = (freq / 160 - 8800) * 2;
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f = (unsigned long long) m + 0x4d1c;
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f = (unsigned long long)m + 0x4d1c;
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bitmask = 0xc480402c10080000ull;
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i = 45;
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mutex_lock(&dev->lock);
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mutex_lock(&zol->lock);
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outb(0, io);
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outb(0, io);
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inb(io + 3); /* Zoltrix needs to be read to confirm */
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zol->curfreq = freq;
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outb(0x40, io);
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outb(0xc0, io);
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outb(0, zol->io);
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outb(0, zol->io);
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inb(zol->io + 3); /* Zoltrix needs to be read to confirm */
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bitmask = (bitmask ^ ((f & 0xff) << 47) ^ ((f & 0xff00) << 30) ^ ( stereo << 31));
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outb(0x40, zol->io);
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outb(0xc0, zol->io);
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bitmask = (bitmask ^ ((f & 0xff) << 47) ^ ((f & 0xff00) << 30) ^ (stereo << 31));
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while (i--) {
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if ((bitmask & 0x8000000000000000ull) != 0) {
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outb(0x80, io);
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outb(0x80, zol->io);
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udelay(50);
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outb(0x00, io);
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outb(0x00, zol->io);
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udelay(50);
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outb(0x80, io);
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outb(0x80, zol->io);
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udelay(50);
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} else {
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outb(0xc0, io);
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outb(0xc0, zol->io);
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udelay(50);
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outb(0x40, io);
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outb(0x40, zol->io);
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udelay(50);
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outb(0xc0, io);
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outb(0xc0, zol->io);
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udelay(50);
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}
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bitmask *= 2;
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}
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/* termination sequence */
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outb(0x80, io);
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outb(0xc0, io);
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outb(0x40, io);
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outb(0x80, zol->io);
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outb(0xc0, zol->io);
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outb(0x40, zol->io);
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udelay(1000);
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inb(io+2);
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inb(zol->io + 2);
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udelay(1000);
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if (dev->muted)
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{
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outb(0, io);
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outb(0, io);
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inb(io + 3);
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if (zol->muted) {
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outb(0, zol->io);
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outb(0, zol->io);
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inb(zol->io + 3);
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udelay(1000);
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}
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mutex_unlock(&dev->lock);
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mutex_unlock(&zol->lock);
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if(!dev->muted)
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{
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zol_setvol(dev, dev->curvol);
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}
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if (!zol->muted)
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zol_setvol(zol, zol->curvol);
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return 0;
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}
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/* Get signal strength */
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static int zol_getsigstr(struct zol_device *dev)
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static int zol_getsigstr(struct zoltrix *zol)
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{
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int a, b;
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mutex_lock(&dev->lock);
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outb(0x00, io); /* This stuff I found to do nothing */
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outb(dev->curvol, io);
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mutex_lock(&zol->lock);
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outb(0x00, zol->io); /* This stuff I found to do nothing */
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outb(zol->curvol, zol->io);
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msleep(20);
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a = inb(io);
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a = inb(zol->io);
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msleep(10);
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b = inb(io);
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b = inb(zol->io);
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mutex_unlock(&dev->lock);
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mutex_unlock(&zol->lock);
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if (a != b)
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return (0);
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return 0;
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if ((a == 0xcf) || (a == 0xdf) /* I found this out by playing */
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|| (a == 0xef)) /* with a binary scanner on the card io */
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return (1);
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return (0);
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/* I found this out by playing with a binary scanner on the card io */
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return a == 0xcf || a == 0xdf || a == 0xef;
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}
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static int zol_is_stereo (struct zol_device *dev)
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static int zol_is_stereo(struct zoltrix *zol)
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{
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int x1, x2;
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mutex_lock(&dev->lock);
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mutex_lock(&zol->lock);
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outb(0x00, io);
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outb(dev->curvol, io);
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outb(0x00, zol->io);
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outb(zol->curvol, zol->io);
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msleep(20);
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x1 = inb(io);
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x1 = inb(zol->io);
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msleep(10);
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x2 = inb(io);
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x2 = inb(zol->io);
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mutex_unlock(&dev->lock);
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mutex_unlock(&zol->lock);
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if ((x1 == x2) && (x1 == 0xcf))
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return 1;
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return 0;
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return x1 == x2 && x1 == 0xcf;
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}
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static int vidioc_querycap(struct file *file, void *priv,
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@ -240,59 +228,54 @@ static int vidioc_querycap(struct file *file, void *priv,
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{
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strlcpy(v->driver, "radio-zoltrix", sizeof(v->driver));
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strlcpy(v->card, "Zoltrix Radio", sizeof(v->card));
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sprintf(v->bus_info, "ISA");
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strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
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v->version = RADIO_VERSION;
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v->capabilities = V4L2_CAP_TUNER;
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v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
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return 0;
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}
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static int vidioc_g_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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{
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struct zol_device *zol = video_drvdata(file);
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struct zoltrix *zol = video_drvdata(file);
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if (v->index > 0)
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return -EINVAL;
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strcpy(v->name, "FM");
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strlcpy(v->name, "FM", sizeof(v->name));
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v->type = V4L2_TUNER_RADIO;
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v->rangelow = (88*16000);
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v->rangehigh = (108*16000);
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v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
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v->rangelow = 88 * 16000;
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v->rangehigh = 108 * 16000;
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v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
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v->capability = V4L2_TUNER_CAP_LOW;
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if (zol_is_stereo(zol))
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v->audmode = V4L2_TUNER_MODE_STEREO;
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else
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v->audmode = V4L2_TUNER_MODE_MONO;
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v->signal = 0xFFFF*zol_getsigstr(zol);
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v->signal = 0xFFFF * zol_getsigstr(zol);
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return 0;
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}
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static int vidioc_s_tuner(struct file *file, void *priv,
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struct v4l2_tuner *v)
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{
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if (v->index > 0)
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return -EINVAL;
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return 0;
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return v->index ? -EINVAL : 0;
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}
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static int vidioc_s_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct zol_device *zol = video_drvdata(file);
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struct zoltrix *zol = video_drvdata(file);
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zol->curfreq = f->frequency;
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if (zol_setfreq(zol, zol->curfreq) != 0) {
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printk(KERN_WARNING "zoltrix: Set frequency failed.\n");
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if (zol_setfreq(zol, f->frequency) != 0)
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return -EINVAL;
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}
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return 0;
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}
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static int vidioc_g_frequency(struct file *file, void *priv,
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struct v4l2_frequency *f)
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{
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struct zol_device *zol = video_drvdata(file);
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struct zoltrix *zol = video_drvdata(file);
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f->type = V4L2_TUNER_RADIO;
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f->frequency = zol->curfreq;
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@ -302,14 +285,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
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static int vidioc_queryctrl(struct file *file, void *priv,
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struct v4l2_queryctrl *qc)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
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if (qc->id && qc->id == radio_qctrl[i].id) {
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memcpy(qc, &(radio_qctrl[i]),
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sizeof(*qc));
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return 0;
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}
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switch (qc->id) {
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case V4L2_CID_AUDIO_MUTE:
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return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
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case V4L2_CID_AUDIO_VOLUME:
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return v4l2_ctrl_query_fill(qc, 0, 65535, 4096, 65535);
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}
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return -EINVAL;
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}
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@ -317,7 +297,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
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static int vidioc_g_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct zol_device *zol = video_drvdata(file);
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struct zoltrix *zol = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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@ -333,7 +313,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
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static int vidioc_s_ctrl(struct file *file, void *priv,
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struct v4l2_control *ctrl)
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{
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struct zol_device *zol = video_drvdata(file);
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struct zoltrix *zol = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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@ -341,43 +321,30 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
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zol_mute(zol);
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else {
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zol_unmute(zol);
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zol_setvol(zol,zol->curvol);
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zol_setvol(zol, zol->curvol);
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}
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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zol_setvol(zol,ctrl->value/4096);
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zol_setvol(zol, ctrl->value / 4096);
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return 0;
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}
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zol->stereo = 1;
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if (zol_setfreq(zol, zol->curfreq) != 0) {
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printk(KERN_WARNING "zoltrix: Set frequency failed.\n");
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if (zol_setfreq(zol, zol->curfreq) != 0)
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return -EINVAL;
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}
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#if 0
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/* FIXME: Implement stereo/mono switch on V4L2 */
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if (v->mode & VIDEO_SOUND_STEREO) {
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zol->stereo = 1;
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zol_setfreq(zol, zol->curfreq);
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}
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if (v->mode & VIDEO_SOUND_MONO) {
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zol->stereo = 0;
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zol_setfreq(zol, zol->curfreq);
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}
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if (v->mode & VIDEO_SOUND_STEREO) {
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zol->stereo = 1;
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zol_setfreq(zol, zol->curfreq);
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}
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if (v->mode & VIDEO_SOUND_MONO) {
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zol->stereo = 0;
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zol_setfreq(zol, zol->curfreq);
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}
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#endif
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return -EINVAL;
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}
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static int vidioc_g_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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||||
if (a->index > 1)
|
||||
return -EINVAL;
|
||||
|
||||
strcpy(a->name, "Radio");
|
||||
a->capability = V4L2_AUDCAP_STEREO;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
|
||||
{
|
||||
*i = 0;
|
||||
@ -386,37 +353,39 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
|
||||
|
||||
static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
|
||||
{
|
||||
if (i != 0)
|
||||
return -EINVAL;
|
||||
return i ? -EINVAL : 0;
|
||||
}
|
||||
|
||||
static int vidioc_g_audio(struct file *file, void *priv,
|
||||
struct v4l2_audio *a)
|
||||
{
|
||||
a->index = 0;
|
||||
strlcpy(a->name, "Radio", sizeof(a->name));
|
||||
a->capability = V4L2_AUDCAP_STEREO;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int vidioc_s_audio(struct file *file, void *priv,
|
||||
struct v4l2_audio *a)
|
||||
{
|
||||
if (a->index != 0)
|
||||
return -EINVAL;
|
||||
return a->index ? -EINVAL : 0;
|
||||
}
|
||||
|
||||
static int zoltrix_open(struct file *file)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct zol_device zoltrix_unit;
|
||||
|
||||
static int zoltrix_exclusive_open(struct file *file)
|
||||
static int zoltrix_release(struct file *file)
|
||||
{
|
||||
return test_and_set_bit(0, &zoltrix_unit.in_use) ? -EBUSY : 0;
|
||||
}
|
||||
|
||||
static int zoltrix_exclusive_release(struct file *file)
|
||||
{
|
||||
clear_bit(0, &zoltrix_unit.in_use);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct v4l2_file_operations zoltrix_fops =
|
||||
{
|
||||
.owner = THIS_MODULE,
|
||||
.open = zoltrix_exclusive_open,
|
||||
.release = zoltrix_exclusive_release,
|
||||
.open = zoltrix_open,
|
||||
.release = zoltrix_release,
|
||||
.ioctl = video_ioctl2,
|
||||
};
|
||||
|
||||
@ -435,67 +404,75 @@ static const struct v4l2_ioctl_ops zoltrix_ioctl_ops = {
|
||||
.vidioc_s_ctrl = vidioc_s_ctrl,
|
||||
};
|
||||
|
||||
static struct video_device zoltrix_radio = {
|
||||
.name = "Zoltrix Radio Plus",
|
||||
.fops = &zoltrix_fops,
|
||||
.ioctl_ops = &zoltrix_ioctl_ops,
|
||||
.release = video_device_release_empty,
|
||||
};
|
||||
|
||||
static int __init zoltrix_init(void)
|
||||
{
|
||||
if (io == -1) {
|
||||
printk(KERN_ERR "You must set an I/O address with io=0x???\n");
|
||||
struct zoltrix *zol = &zoltrix_card;
|
||||
struct v4l2_device *v4l2_dev = &zol->v4l2_dev;
|
||||
int res;
|
||||
|
||||
strlcpy(v4l2_dev->name, "zoltrix", sizeof(v4l2_dev->name));
|
||||
zol->io = io;
|
||||
if (zol->io == -1) {
|
||||
v4l2_err(v4l2_dev, "You must set an I/O address with io=0x???\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
if ((io != 0x20c) && (io != 0x30c)) {
|
||||
printk(KERN_ERR "zoltrix: invalid port, try 0x20c or 0x30c\n");
|
||||
if (zol->io != 0x20c && zol->io != 0x30c) {
|
||||
v4l2_err(v4l2_dev, "invalid port, try 0x20c or 0x30c\n");
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
video_set_drvdata(&zoltrix_radio, &zoltrix_unit);
|
||||
if (!request_region(io, 2, "zoltrix")) {
|
||||
printk(KERN_ERR "zoltrix: port 0x%x already in use\n", io);
|
||||
if (!request_region(zol->io, 2, "zoltrix")) {
|
||||
v4l2_err(v4l2_dev, "port 0x%x already in use\n", zol->io);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
if (video_register_device(&zoltrix_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
release_region(io, 2);
|
||||
res = v4l2_device_register(NULL, v4l2_dev);
|
||||
if (res < 0) {
|
||||
release_region(zol->io, 2);
|
||||
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
|
||||
return res;
|
||||
}
|
||||
|
||||
strlcpy(zol->vdev.name, v4l2_dev->name, sizeof(zol->vdev.name));
|
||||
zol->vdev.v4l2_dev = v4l2_dev;
|
||||
zol->vdev.fops = &zoltrix_fops;
|
||||
zol->vdev.ioctl_ops = &zoltrix_ioctl_ops;
|
||||
zol->vdev.release = video_device_release_empty;
|
||||
video_set_drvdata(&zol->vdev, zol);
|
||||
|
||||
if (video_register_device(&zol->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
v4l2_device_unregister(v4l2_dev);
|
||||
release_region(zol->io, 2);
|
||||
return -EINVAL;
|
||||
}
|
||||
printk(KERN_INFO "Zoltrix Radio Plus card driver.\n");
|
||||
v4l2_info(v4l2_dev, "Zoltrix Radio Plus card driver.\n");
|
||||
|
||||
mutex_init(&zoltrix_unit.lock);
|
||||
mutex_init(&zol->lock);
|
||||
|
||||
/* mute card - prevents noisy bootups */
|
||||
|
||||
/* this ensures that the volume is all the way down */
|
||||
|
||||
outb(0, io);
|
||||
outb(0, io);
|
||||
outb(0, zol->io);
|
||||
outb(0, zol->io);
|
||||
msleep(20);
|
||||
inb(io + 3);
|
||||
inb(zol->io + 3);
|
||||
|
||||
zoltrix_unit.curvol = 0;
|
||||
zoltrix_unit.stereo = 1;
|
||||
zol->curvol = 0;
|
||||
zol->stereo = 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("C.van Schaik");
|
||||
MODULE_DESCRIPTION("A driver for the Zoltrix Radio Plus.");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_param(io, int, 0);
|
||||
MODULE_PARM_DESC(io, "I/O address of the Zoltrix Radio Plus (0x20c or 0x30c)");
|
||||
module_param(radio_nr, int, 0);
|
||||
|
||||
static void __exit zoltrix_cleanup_module(void)
|
||||
static void __exit zoltrix_exit(void)
|
||||
{
|
||||
video_unregister_device(&zoltrix_radio);
|
||||
release_region(io, 2);
|
||||
struct zoltrix *zol = &zoltrix_card;
|
||||
|
||||
video_unregister_device(&zol->vdev);
|
||||
v4l2_device_unregister(&zol->v4l2_dev);
|
||||
release_region(zol->io, 2);
|
||||
}
|
||||
|
||||
module_init(zoltrix_init);
|
||||
module_exit(zoltrix_cleanup_module);
|
||||
module_exit(zoltrix_exit);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user