mirror of
https://github.com/adulau/aha.git
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V4L/DVB (10881): radio-aztech: 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
151c3f8252
commit
e697e12ece
1 changed files with 181 additions and 198 deletions
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@ -29,33 +29,16 @@
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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 */
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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/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 = 0xff,
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.step = 1,
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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("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
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MODULE_DESCRIPTION("A driver for the Aztech radio card.");
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MODULE_LICENSE("GPL");
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/* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
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@ -66,55 +49,64 @@ static struct v4l2_queryctrl radio_qctrl[] = {
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static int io = CONFIG_RADIO_AZTECH_PORT;
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static int radio_nr = -1;
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static int radio_wait_time = 1000;
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static struct mutex lock;
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struct az_device
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module_param(io, int, 0);
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module_param(radio_nr, int, 0);
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MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
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#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
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struct aztech
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{
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unsigned long in_use;
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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 stereo;
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struct mutex lock;
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};
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static struct aztech aztech_card;
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static int volconvert(int level)
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{
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level>>=14; /* Map 16bits down to 2 bit */
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level&=3;
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level >>= 14; /* Map 16bits down to 2 bit */
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level &= 3;
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/* convert to card-friendly values */
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switch (level)
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{
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case 0:
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return 0;
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case 1:
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return 1;
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case 2:
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return 4;
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case 3:
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return 5;
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switch (level) {
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case 0:
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return 0;
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case 1:
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return 1;
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case 2:
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return 4;
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case 3:
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return 5;
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}
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return 0; /* Quieten gcc */
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}
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static void send_0_byte (struct az_device *dev)
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static void send_0_byte(struct aztech *az)
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{
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udelay(radio_wait_time);
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outb_p(2+volconvert(dev->curvol), io);
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outb_p(64+2+volconvert(dev->curvol), io);
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outb_p(2 + volconvert(az->curvol), az->io);
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outb_p(64 + 2 + volconvert(az->curvol), az->io);
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}
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static void send_1_byte (struct az_device *dev)
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static void send_1_byte(struct aztech *az)
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{
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udelay (radio_wait_time);
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outb_p(128+2+volconvert(dev->curvol), io);
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outb_p(128+64+2+volconvert(dev->curvol), io);
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outb_p(128 + 2 + volconvert(az->curvol), az->io);
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outb_p(128 + 64 + 2 + volconvert(az->curvol), az->io);
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}
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static int az_setvol(struct az_device *dev, int vol)
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static int az_setvol(struct aztech *az, int vol)
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{
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mutex_lock(&lock);
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outb (volconvert(vol), io);
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mutex_unlock(&lock);
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mutex_lock(&az->lock);
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outb(volconvert(vol), az->io);
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mutex_unlock(&az->lock);
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return 0;
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}
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@ -126,116 +118,110 @@ static int az_setvol(struct az_device *dev, int vol)
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*
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*/
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static int az_getsigstr(struct az_device *dev)
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static int az_getsigstr(struct aztech *az)
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{
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if (inb(io) & 2) /* bit set = no signal present */
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return 0;
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return 1; /* signal present */
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int sig = 1;
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mutex_lock(&az->lock);
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if (inb(az->io) & 2) /* bit set = no signal present */
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sig = 0;
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mutex_unlock(&az->lock);
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return sig;
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}
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static int az_getstereo(struct az_device *dev)
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static int az_getstereo(struct aztech *az)
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{
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if (inb(io) & 1) /* bit set = mono */
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return 0;
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return 1; /* stereo */
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int stereo = 1;
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mutex_lock(&az->lock);
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if (inb(az->io) & 1) /* bit set = mono */
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stereo = 0;
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mutex_unlock(&az->lock);
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return stereo;
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}
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static int az_setfreq(struct az_device *dev, unsigned long frequency)
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static int az_setfreq(struct aztech *az, unsigned long frequency)
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{
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int i;
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mutex_lock(&az->lock);
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az->curfreq = frequency;
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frequency += 171200; /* Add 10.7 MHz IF */
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frequency /= 800; /* Convert to 50 kHz units */
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mutex_lock(&lock);
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send_0_byte (dev); /* 0: LSB of frequency */
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send_0_byte(az); /* 0: LSB of frequency */
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for (i = 0; i < 13; i++) /* : frequency bits (1-13) */
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if (frequency & (1 << i))
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send_1_byte (dev);
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send_1_byte(az);
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else
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send_0_byte (dev);
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send_0_byte(az);
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send_0_byte (dev); /* 14: test bit - always 0 */
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send_0_byte (dev); /* 15: test bit - always 0 */
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send_0_byte (dev); /* 16: band data 0 - always 0 */
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if (dev->stereo) /* 17: stereo (1 to enable) */
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send_1_byte (dev);
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send_0_byte(az); /* 14: test bit - always 0 */
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send_0_byte(az); /* 15: test bit - always 0 */
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send_0_byte(az); /* 16: band data 0 - always 0 */
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if (az->stereo) /* 17: stereo (1 to enable) */
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send_1_byte(az);
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else
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send_0_byte (dev);
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send_0_byte(az);
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send_1_byte (dev); /* 18: band data 1 - unknown */
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send_0_byte (dev); /* 19: time base - always 0 */
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send_0_byte (dev); /* 20: spacing (0 = 25 kHz) */
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send_1_byte (dev); /* 21: spacing (1 = 25 kHz) */
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send_0_byte (dev); /* 22: spacing (0 = 25 kHz) */
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send_1_byte (dev); /* 23: AM/FM (FM = 1, always) */
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send_1_byte(az); /* 18: band data 1 - unknown */
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send_0_byte(az); /* 19: time base - always 0 */
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send_0_byte(az); /* 20: spacing (0 = 25 kHz) */
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send_1_byte(az); /* 21: spacing (1 = 25 kHz) */
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send_0_byte(az); /* 22: spacing (0 = 25 kHz) */
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send_1_byte(az); /* 23: AM/FM (FM = 1, always) */
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/* latch frequency */
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udelay (radio_wait_time);
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outb_p(128+64+volconvert(dev->curvol), io);
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udelay(radio_wait_time);
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outb_p(128 + 64 + volconvert(az->curvol), az->io);
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mutex_unlock(&lock);
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mutex_unlock(&az->lock);
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return 0;
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}
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static int vidioc_querycap (struct file *file, void *priv,
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static int vidioc_querycap(struct file *file, void *priv,
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struct v4l2_capability *v)
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{
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strlcpy(v->driver, "radio-aztech", sizeof (v->driver));
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strlcpy(v->card, "Aztech Radio", sizeof (v->card));
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sprintf(v->bus_info,"ISA");
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strlcpy(v->driver, "radio-aztech", sizeof(v->driver));
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strlcpy(v->card, "Aztech Radio", sizeof(v->card));
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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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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 az_device *az = video_drvdata(file);
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struct aztech *az = 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=(87*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(az_getstereo(az))
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v->rangelow = 87 * 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 (az_getstereo(az))
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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*az_getsigstr(az);
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v->signal = 0xFFFF * az_getsigstr(az);
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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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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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}
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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)
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return -EINVAL;
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strcpy(a->name, "Radio");
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a->capability = V4L2_AUDCAP_STEREO;
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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_g_input(struct file *filp, void *priv, unsigned int *i)
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@ -246,113 +232,107 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
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static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
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{
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if (i != 0)
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return -EINVAL;
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return 0;
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return i ? -EINVAL : 0;
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}
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static int vidioc_s_audio (struct file *file, void *priv,
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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 != 0)
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return -EINVAL;
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a->index = 0;
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strlcpy(a->name, "Radio", sizeof(a->name));
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a->capability = V4L2_AUDCAP_STEREO;
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return 0;
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}
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static int vidioc_s_frequency (struct file *file, void *priv,
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static int vidioc_s_audio(struct file *file, void *priv,
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struct v4l2_audio *a)
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{
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return a->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 az_device *az = video_drvdata(file);
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struct aztech *az = video_drvdata(file);
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az->curfreq = f->frequency;
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az_setfreq(az, az->curfreq);
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az_setfreq(az, f->frequency);
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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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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 az_device *az = video_drvdata(file);
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struct aztech *az = video_drvdata(file);
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f->type = V4L2_TUNER_RADIO;
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f->frequency = az->curfreq;
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return 0;
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}
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static int vidioc_queryctrl (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, 0xff, 1, 0xff);
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}
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return -EINVAL;
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}
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static int vidioc_g_ctrl (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 az_device *az = video_drvdata(file);
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struct aztech *az = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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if (az->curvol==0)
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ctrl->value=1;
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else
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ctrl->value=0;
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return (0);
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case V4L2_CID_AUDIO_VOLUME:
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ctrl->value=az->curvol * 6554;
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return (0);
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case V4L2_CID_AUDIO_MUTE:
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if (az->curvol == 0)
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ctrl->value = 1;
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else
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ctrl->value = 0;
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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ctrl->value = az->curvol * 6554;
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return 0;
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}
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return -EINVAL;
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}
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static int vidioc_s_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 az_device *az = video_drvdata(file);
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struct aztech *az = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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if (ctrl->value) {
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az_setvol(az,0);
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} else {
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az_setvol(az,az->curvol);
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}
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return (0);
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case V4L2_CID_AUDIO_VOLUME:
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az_setvol(az,ctrl->value);
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return (0);
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case V4L2_CID_AUDIO_MUTE:
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if (ctrl->value)
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az_setvol(az, 0);
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else
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az_setvol(az, az->curvol);
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return 0;
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case V4L2_CID_AUDIO_VOLUME:
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az_setvol(az, ctrl->value);
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return 0;
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}
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return -EINVAL;
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}
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static struct az_device aztech_unit;
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static int aztech_exclusive_open(struct file *file)
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static int aztech_open(struct file *file)
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{
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return test_and_set_bit(0, &aztech_unit.in_use) ? -EBUSY : 0;
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return 0;
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}
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static int aztech_exclusive_release(struct file *file)
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static int aztech_release(struct file *file)
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{
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clear_bit(0, &aztech_unit.in_use);
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return 0;
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}
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||||
|
||||
static const struct v4l2_file_operations aztech_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = aztech_exclusive_open,
|
||||
.release = aztech_exclusive_release,
|
||||
.open = aztech_open,
|
||||
.release = aztech_release,
|
||||
.ioctl = video_ioctl2,
|
||||
};
|
||||
|
||||
|
|
@ -371,57 +351,60 @@ static const struct v4l2_ioctl_ops aztech_ioctl_ops = {
|
|||
.vidioc_s_ctrl = vidioc_s_ctrl,
|
||||
};
|
||||
|
||||
static struct video_device aztech_radio = {
|
||||
.name = "Aztech radio",
|
||||
.fops = &aztech_fops,
|
||||
.ioctl_ops = &aztech_ioctl_ops,
|
||||
.release = video_device_release_empty,
|
||||
};
|
||||
|
||||
module_param_named(debug,aztech_radio.debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug,"activates debug info");
|
||||
|
||||
static int __init aztech_init(void)
|
||||
{
|
||||
if(io==-1)
|
||||
{
|
||||
printk(KERN_ERR "You must set an I/O address with io=0x???\n");
|
||||
struct aztech *az = &aztech_card;
|
||||
struct v4l2_device *v4l2_dev = &az->v4l2_dev;
|
||||
int res;
|
||||
|
||||
strlcpy(v4l2_dev->name, "aztech", sizeof(v4l2_dev->name));
|
||||
az->io = io;
|
||||
|
||||
if (az->io == -1) {
|
||||
v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!request_region(io, 2, "aztech"))
|
||||
{
|
||||
printk(KERN_ERR "aztech: port 0x%x already in use\n", io);
|
||||
if (!request_region(az->io, 2, "aztech")) {
|
||||
v4l2_err(v4l2_dev, "port 0x%x already in use\n", az->io);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
mutex_init(&lock);
|
||||
video_set_drvdata(&aztech_radio, &aztech_unit);
|
||||
res = v4l2_device_register(NULL, v4l2_dev);
|
||||
if (res < 0) {
|
||||
release_region(az->io, 2);
|
||||
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
|
||||
return res;
|
||||
}
|
||||
|
||||
if (video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
release_region(io,2);
|
||||
mutex_init(&az->lock);
|
||||
strlcpy(az->vdev.name, v4l2_dev->name, sizeof(az->vdev.name));
|
||||
az->vdev.v4l2_dev = v4l2_dev;
|
||||
az->vdev.fops = &aztech_fops;
|
||||
az->vdev.ioctl_ops = &aztech_ioctl_ops;
|
||||
az->vdev.release = video_device_release_empty;
|
||||
video_set_drvdata(&az->vdev, az);
|
||||
|
||||
if (video_register_device(&az->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
v4l2_device_unregister(v4l2_dev);
|
||||
release_region(az->io, 2);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
|
||||
v4l2_info(v4l2_dev, "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
|
||||
/* mute card - prevents noisy bootups */
|
||||
outb (0, io);
|
||||
outb(0, az->io);
|
||||
return 0;
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
|
||||
MODULE_DESCRIPTION("A driver for the Aztech radio card.");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
module_param(io, int, 0);
|
||||
module_param(radio_nr, int, 0);
|
||||
MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
|
||||
|
||||
static void __exit aztech_cleanup(void)
|
||||
static void __exit aztech_exit(void)
|
||||
{
|
||||
video_unregister_device(&aztech_radio);
|
||||
release_region(io,2);
|
||||
struct aztech *az = &aztech_card;
|
||||
|
||||
video_unregister_device(&az->vdev);
|
||||
v4l2_device_unregister(&az->v4l2_dev);
|
||||
release_region(az->io, 2);
|
||||
}
|
||||
|
||||
module_init(aztech_init);
|
||||
module_exit(aztech_cleanup);
|
||||
module_exit(aztech_exit);
|
||||
|
|
|
|||
Loading…
Reference in a new issue