mirror of https://gitee.com/openkylin/linux.git
V4L/DVB (10890): radio-terratec: 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
c32a9d7155
commit
5ac3d5bf4a
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@ -28,15 +28,30 @@
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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 <media/v4l2-ioctl.h>
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#include <linux/spinlock.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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#define RADIO_VERSION KERNEL_VERSION(0,0,2)
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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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MODULE_AUTHOR("R.OFFERMANNS & others");
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MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
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MODULE_LICENSE("GPL");
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#ifndef CONFIG_RADIO_TERRATEC_PORT
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#define CONFIG_RADIO_TERRATEC_PORT 0x590
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#endif
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static int io = CONFIG_RADIO_TERRATEC_PORT;
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static int radio_nr = -1;
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module_param(io, int, 0);
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MODULE_PARM_DESC(io, "I/O address of the TerraTec ActiveRadio card (0x590 or 0x591)");
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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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static struct v4l2_queryctrl radio_qctrl[] = {
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{
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@ -57,13 +72,6 @@ static struct v4l2_queryctrl radio_qctrl[] = {
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}
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};
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#ifndef CONFIG_RADIO_TERRATEC_PORT
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#define CONFIG_RADIO_TERRATEC_PORT 0x590
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#endif
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/**************** this ones are for the terratec *******************/
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#define BASEPORT 0x590
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#define VOLPORT 0x591
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#define WRT_DIS 0x00
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#define CLK_OFF 0x00
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#define IIC_DATA 0x01
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@ -71,138 +79,124 @@ static struct v4l2_queryctrl radio_qctrl[] = {
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#define DATA 0x04
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#define CLK_ON 0x08
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#define WRT_EN 0x10
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/*******************************************************************/
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static int io = CONFIG_RADIO_TERRATEC_PORT;
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static int radio_nr = -1;
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static spinlock_t lock;
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struct tt_device
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struct terratec
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{
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unsigned long in_use;
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int port;
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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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struct mutex lock;
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};
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static struct terratec terratec_card;
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/* local things */
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static void cardWriteVol(int volume)
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static void tt_write_vol(struct terratec *tt, int volume)
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{
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int i;
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volume = volume+(volume * 32); // change both channels
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spin_lock(&lock);
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for (i=0;i<8;i++)
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{
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if (volume & (0x80>>i))
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outb(0x80, VOLPORT);
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else outb(0x00, VOLPORT);
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volume = volume + (volume * 32); /* change both channels */
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mutex_lock(&tt->lock);
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for (i = 0; i < 8; i++) {
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if (volume & (0x80 >> i))
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outb(0x80, tt->io + 1);
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else
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outb(0x00, tt->io + 1);
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}
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spin_unlock(&lock);
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mutex_unlock(&tt->lock);
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}
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static void tt_mute(struct tt_device *dev)
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static void tt_mute(struct terratec *tt)
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{
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dev->muted = 1;
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cardWriteVol(0);
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tt->muted = 1;
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tt_write_vol(tt, 0);
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}
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static int tt_setvol(struct tt_device *dev, int vol)
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static int tt_setvol(struct terratec *tt, int vol)
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{
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// printk(KERN_ERR "setvol called, vol = %d\n", vol);
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if(vol == dev->curvol) { /* requested volume = current */
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if (dev->muted) { /* user is unmuting the card */
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dev->muted = 0;
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cardWriteVol(vol); /* enable card */
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if (vol == tt->curvol) { /* requested volume = current */
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if (tt->muted) { /* user is unmuting the card */
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tt->muted = 0;
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tt_write_vol(tt, vol); /* enable card */
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}
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return 0;
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}
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if(vol == 0) { /* volume = 0 means mute the card */
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cardWriteVol(0); /* "turn off card" by setting vol to 0 */
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dev->curvol = vol; /* track the volume state! */
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if (vol == 0) { /* volume = 0 means mute the card */
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tt_write_vol(tt, 0); /* "turn off card" by setting vol to 0 */
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tt->curvol = vol; /* track the volume state! */
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return 0;
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}
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dev->muted = 0;
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cardWriteVol(vol);
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dev->curvol = vol;
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tt->muted = 0;
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tt_write_vol(tt, vol);
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tt->curvol = vol;
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return 0;
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}
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/* this is the worst part in this driver */
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/* many more or less strange things are going on here, but hey, it works :) */
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static int tt_setfreq(struct tt_device *dev, unsigned long freq1)
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static int tt_setfreq(struct terratec *tt, unsigned long freq1)
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{
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int freq;
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int i;
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int p;
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int temp;
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long rest;
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unsigned char buffer[25]; /* we have to bit shift 25 registers */
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freq = freq1/160; /* convert the freq. to a nice to handle value */
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for(i=24;i>-1;i--)
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buffer[i]=0;
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rest = freq*10+10700; /* i once had understood what is going on here */
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mutex_lock(&tt->lock);
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tt->curfreq = freq1;
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freq = freq1 / 160; /* convert the freq. to a nice to handle value */
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memset(buffer, 0, sizeof(buffer));
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rest = freq * 10 + 10700; /* I once had understood what is going on here */
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/* maybe some wise guy (friedhelm?) can comment this stuff */
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i=13;
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p=10;
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temp=102400;
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while (rest!=0)
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{
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if (rest%temp == rest)
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i = 13;
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p = 10;
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temp = 102400;
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while (rest != 0) {
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if (rest % temp == rest)
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buffer[i] = 0;
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else
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{
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else {
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buffer[i] = 1;
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rest = rest-temp;
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rest = rest - temp;
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}
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i--;
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p--;
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temp = temp/2;
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temp = temp / 2;
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}
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spin_lock(&lock);
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for (i=24;i>-1;i--) /* bit shift the values to the radiocard */
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{
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if (buffer[i]==1)
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{
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outb(WRT_EN|DATA, BASEPORT);
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outb(WRT_EN|DATA|CLK_ON , BASEPORT);
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outb(WRT_EN|DATA, BASEPORT);
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}
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else
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{
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outb(WRT_EN|0x00, BASEPORT);
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outb(WRT_EN|0x00|CLK_ON , BASEPORT);
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for (i = 24; i > -1; i--) { /* bit shift the values to the radiocard */
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if (buffer[i] == 1) {
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outb(WRT_EN | DATA, tt->io);
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outb(WRT_EN | DATA | CLK_ON, tt->io);
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outb(WRT_EN | DATA, tt->io);
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} else {
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outb(WRT_EN | 0x00, tt->io);
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outb(WRT_EN | 0x00 | CLK_ON, tt->io);
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}
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}
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outb(0x00, BASEPORT);
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outb(0x00, tt->io);
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spin_unlock(&lock);
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mutex_unlock(&tt->lock);
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return 0;
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}
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static int tt_getsigstr(struct tt_device *dev) /* TODO */
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static int tt_getsigstr(struct terratec *tt)
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{
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if (inb(io) & 2) /* bit set = no signal present */
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if (inb(tt->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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}
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@ -212,53 +206,50 @@ static int vidioc_querycap(struct file *file, void *priv,
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{
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strlcpy(v->driver, "radio-terratec", sizeof(v->driver));
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strlcpy(v->card, "ActiveRadio", 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 tt_device *tt = video_drvdata(file);
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struct terratec *tt = 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->rangelow = 87 * 16000;
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v->rangehigh = 108 * 16000;
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v->rxsubchans = V4L2_TUNER_SUB_MONO;
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v->capability = V4L2_TUNER_CAP_LOW;
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v->audmode = V4L2_TUNER_MODE_MONO;
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v->signal = 0xFFFF*tt_getsigstr(tt);
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v->signal = 0xFFFF * tt_getsigstr(tt);
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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 tt_device *tt = video_drvdata(file);
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struct terratec *tt = video_drvdata(file);
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tt->curfreq = f->frequency;
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tt_setfreq(tt, tt->curfreq);
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tt_setfreq(tt, 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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struct v4l2_frequency *f)
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{
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struct tt_device *tt = video_drvdata(file);
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struct terratec *tt = video_drvdata(file);
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f->type = V4L2_TUNER_RADIO;
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f->frequency = tt->curfreq;
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@ -272,8 +263,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
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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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memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
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return 0;
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}
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}
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@ -283,7 +273,7 @@ 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 tt_device *tt = video_drvdata(file);
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struct terratec *tt = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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@ -302,7 +292,7 @@ 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 tt_device *tt = video_drvdata(file);
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struct terratec *tt = video_drvdata(file);
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switch (ctrl->id) {
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case V4L2_CID_AUDIO_MUTE:
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@ -318,17 +308,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
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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)
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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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}
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static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
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{
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*i = 0;
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@ -337,36 +316,38 @@ 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 i ? -EINVAL : 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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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_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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return a->index ? -EINVAL : 0;
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}
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static int terratec_open(struct file *file)
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{
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return 0;
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}
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static struct tt_device terratec_unit;
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static int terratec_exclusive_open(struct file *file)
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static int terratec_release(struct file *file)
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{
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return test_and_set_bit(0, &terratec_unit.in_use) ? -EBUSY : 0;
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}
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static int terratec_exclusive_release(struct file *file)
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{
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clear_bit(0, &terratec_unit.in_use);
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return 0;
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}
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static const struct v4l2_file_operations terratec_fops = {
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.owner = THIS_MODULE,
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.open = terratec_exclusive_open,
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.release = terratec_exclusive_release,
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.open = terratec_open,
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.release = terratec_release,
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.ioctl = video_ioctl2,
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};
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@ -385,60 +366,63 @@ static const struct v4l2_ioctl_ops terratec_ioctl_ops = {
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.vidioc_s_input = vidioc_s_input,
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};
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static struct video_device terratec_radio = {
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.name = "TerraTec ActiveRadio",
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.fops = &terratec_fops,
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.ioctl_ops = &terratec_ioctl_ops,
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.release = video_device_release_empty,
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};
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static int __init terratec_init(void)
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{
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if(io==-1)
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{
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printk(KERN_ERR "You must set an I/O address with io=0x???\n");
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struct terratec *tt = &terratec_card;
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struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
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int res;
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strlcpy(v4l2_dev->name, "terratec", sizeof(v4l2_dev->name));
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tt->io = io;
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if (tt->io == -1) {
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v4l2_err(v4l2_dev, "you must set an I/O address with io=0x???\n");
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return -EINVAL;
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}
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if (!request_region(io, 2, "terratec"))
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{
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printk(KERN_ERR "TerraTec: port 0x%x already in use\n", io);
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if (!request_region(tt->io, 2, "terratec")) {
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v4l2_err(v4l2_dev, "port 0x%x already in use\n", io);
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return -EBUSY;
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}
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video_set_drvdata(&terratec_radio, &terratec_unit);
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res = v4l2_device_register(NULL, v4l2_dev);
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if (res < 0) {
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release_region(tt->io, 2);
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v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
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return res;
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}
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spin_lock_init(&lock);
|
||||
strlcpy(tt->vdev.name, v4l2_dev->name, sizeof(tt->vdev.name));
|
||||
tt->vdev.v4l2_dev = v4l2_dev;
|
||||
tt->vdev.fops = &terratec_fops;
|
||||
tt->vdev.ioctl_ops = &terratec_ioctl_ops;
|
||||
tt->vdev.release = video_device_release_empty;
|
||||
video_set_drvdata(&tt->vdev, tt);
|
||||
|
||||
if (video_register_device(&terratec_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
release_region(io,2);
|
||||
mutex_init(&tt->lock);
|
||||
|
||||
if (video_register_device(&tt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
|
||||
v4l2_device_unregister(&tt->v4l2_dev);
|
||||
release_region(tt->io, 2);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
printk(KERN_INFO "TERRATEC ActivRadio Standalone card driver.\n");
|
||||
v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver.\n");
|
||||
|
||||
/* mute card - prevents noisy bootups */
|
||||
|
||||
/* this ensures that the volume is all the way down */
|
||||
cardWriteVol(0);
|
||||
terratec_unit.curvol = 0;
|
||||
|
||||
tt_write_vol(tt, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("R.OFFERMANNS & others");
|
||||
MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
|
||||
MODULE_LICENSE("GPL");
|
||||
module_param(io, int, 0);
|
||||
MODULE_PARM_DESC(io, "I/O address of the TerraTec ActiveRadio card (0x590 or 0x591)");
|
||||
module_param(radio_nr, int, 0);
|
||||
|
||||
static void __exit terratec_cleanup_module(void)
|
||||
static void __exit terratec_exit(void)
|
||||
{
|
||||
video_unregister_device(&terratec_radio);
|
||||
release_region(io,2);
|
||||
printk(KERN_INFO "TERRATEC ActivRadio Standalone card driver unloaded.\n");
|
||||
struct terratec *tt = &terratec_card;
|
||||
struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
|
||||
|
||||
video_unregister_device(&tt->vdev);
|
||||
v4l2_device_unregister(&tt->v4l2_dev);
|
||||
release_region(tt->io, 2);
|
||||
v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver unloaded.\n");
|
||||
}
|
||||
|
||||
module_init(terratec_init);
|
||||
module_exit(terratec_cleanup_module);
|
||||
module_exit(terratec_exit);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue