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Diffstat (limited to 'drivers/media/radio/radio-terratec.c')
-rw-r--r--drivers/media/radio/radio-terratec.c361
1 files changed, 95 insertions, 266 deletions
diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c
index 248d67fde03..be10a802e3a 100644
--- a/drivers/media/radio/radio-terratec.c
+++ b/drivers/media/radio/radio-terratec.c
@@ -2,11 +2,11 @@
* (c) 1999 R. Offermanns (rolf@offermanns.de)
* based on the aimslab radio driver from M. Kirkwood
* many thanks to Michael Becker and Friedhelm Birth (from TerraTec)
- *
+ *
*
* History:
* 1999-05-21 First preview release
- *
+ *
* Notes on the hardware:
* There are two "main" chips on the card:
* - Philips OM5610 (http://www-us.semiconductors.philips.com/acrobat/datasheets/OM5610_2.pdf)
@@ -16,30 +16,35 @@
* Frequency control is done digitally -- ie out(port,encodefreq(95.8));
* Volume Control is done digitally
*
- * there is a I2C controlled RDS decoder (SAA6588) onboard, which i would like to support someday
- * (as soon i have understand how to get started :)
- * If you can help me out with that, please contact me!!
- *
- *
+ * Converted to the radio-isa framework by Hans Verkuil <hans.verkuil@cisco.com>
+ * Converted to V4L2 API by Mauro Carvalho Chehab <mchehab@infradead.org>
*/
#include <linux/module.h> /* Modules */
#include <linux/init.h> /* Initdata */
-#include <linux/ioport.h> /* check_region, request_region */
-#include <linux/delay.h> /* udelay */
-#include <asm/io.h> /* outb, outb_p */
-#include <asm/uaccess.h> /* copy to/from user */
-#include <linux/videodev.h> /* kernel radio structs */
-#include <linux/config.h> /* CONFIG_RADIO_TERRATEC_PORT */
-#include <linux/spinlock.h>
+#include <linux/ioport.h> /* request_region */
+#include <linux/videodev2.h> /* kernel radio structs */
+#include <linux/mutex.h>
+#include <linux/io.h> /* outb, outb_p */
+#include <linux/slab.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include "radio-isa.h"
+
+MODULE_AUTHOR("R. Offermans & others");
+MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.1.99");
+
+/* Note: there seems to be only one possible port (0x590), but without
+ hardware this is hard to verify. For now, this is the only one we will
+ support. */
+static int io = 0x590;
+static int radio_nr = -1;
-#ifndef CONFIG_RADIO_TERRATEC_PORT
-#define CONFIG_RADIO_TERRATEC_PORT 0x590
-#endif
+module_param(radio_nr, int, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio device number");
-/**************** this ones are for the terratec *******************/
-#define BASEPORT 0x590
-#define VOLPORT 0x591
#define WRT_DIS 0x00
#define CLK_OFF 0x00
#define IIC_DATA 0x01
@@ -47,295 +52,119 @@
#define DATA 0x04
#define CLK_ON 0x08
#define WRT_EN 0x10
-/*******************************************************************/
-
-static int io = CONFIG_RADIO_TERRATEC_PORT;
-static int radio_nr = -1;
-static spinlock_t lock;
-
-struct tt_device
-{
- int port;
- int curvol;
- unsigned long curfreq;
- int muted;
-};
-
-/* local things */
-
-static void cardWriteVol(int volume)
+static struct radio_isa_card *terratec_alloc(void)
{
- int i;
- volume = volume+(volume * 32); // change both channels
- spin_lock(&lock);
- for (i=0;i<8;i++)
- {
- if (volume & (0x80>>i))
- outb(0x80, VOLPORT);
- else outb(0x00, VOLPORT);
- }
- spin_unlock(&lock);
+ return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL);
}
-
-
-static void tt_mute(struct tt_device *dev)
-{
- dev->muted = 1;
- cardWriteVol(0);
-}
-
-static int tt_setvol(struct tt_device *dev, int vol)
+static int terratec_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
{
-
-// printk(KERN_ERR "setvol called, vol = %d\n", vol);
-
- if(vol == dev->curvol) { /* requested volume = current */
- if (dev->muted) { /* user is unmuting the card */
- dev->muted = 0;
- cardWriteVol(vol); /* enable card */
- }
-
- return 0;
- }
+ int i;
- if(vol == 0) { /* volume = 0 means mute the card */
- cardWriteVol(0); /* "turn off card" by setting vol to 0 */
- dev->curvol = vol; /* track the volume state! */
- return 0;
+ if (mute)
+ vol = 0;
+ vol = vol + (vol * 32); /* change both channels */
+ for (i = 0; i < 8; i++) {
+ if (vol & (0x80 >> i))
+ outb(0x80, isa->io + 1);
+ else
+ outb(0x00, isa->io + 1);
}
-
- dev->muted = 0;
-
- cardWriteVol(vol);
-
- dev->curvol = vol;
-
return 0;
-
}
/* this is the worst part in this driver */
/* many more or less strange things are going on here, but hey, it works :) */
-static int tt_setfreq(struct tt_device *dev, unsigned long freq1)
-{
- int freq;
+static int terratec_s_frequency(struct radio_isa_card *isa, u32 freq)
+{
int i;
int p;
- int temp;
+ int temp;
long rest;
-
unsigned char buffer[25]; /* we have to bit shift 25 registers */
- freq = freq1/160; /* convert the freq. to a nice to handle value */
- for(i=24;i>-1;i--)
- buffer[i]=0;
- rest = freq*10+10700; /* i once had understood what is going on here */
+ freq = freq / 160; /* convert the freq. to a nice to handle value */
+ memset(buffer, 0, sizeof(buffer));
+
+ rest = freq * 10 + 10700; /* I once had understood what is going on here */
/* maybe some wise guy (friedhelm?) can comment this stuff */
- i=13;
- p=10;
- temp=102400;
- while (rest!=0)
- {
- if (rest%temp == rest)
+ i = 13;
+ p = 10;
+ temp = 102400;
+ while (rest != 0) {
+ if (rest % temp == rest)
buffer[i] = 0;
- else
- {
- buffer[i] = 1;
- rest = rest-temp;
+ else {
+ buffer[i] = 1;
+ rest = rest - temp;
}
i--;
p--;
- temp = temp/2;
- }
-
- spin_lock(&lock);
-
- for (i=24;i>-1;i--) /* bit shift the values to the radiocard */
- {
- if (buffer[i]==1)
- {
- outb(WRT_EN|DATA, BASEPORT);
- outb(WRT_EN|DATA|CLK_ON , BASEPORT);
- outb(WRT_EN|DATA, BASEPORT);
- }
- else
- {
- outb(WRT_EN|0x00, BASEPORT);
- outb(WRT_EN|0x00|CLK_ON , BASEPORT);
- }
+ temp = temp / 2;
}
- outb(0x00, BASEPORT);
-
- spin_unlock(&lock);
-
- return 0;
-}
-
-static int tt_getsigstr(struct tt_device *dev) /* TODO */
-{
- if (inb(io) & 2) /* bit set = no signal present */
- return 0;
- return 1; /* signal present */
-}
-
-/* implement the video4linux api */
-
-static int tt_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
-{
- struct video_device *dev = video_devdata(file);
- struct tt_device *tt=dev->priv;
-
- switch(cmd)
- {
- case VIDIOCGCAP:
- {
- struct video_capability *v = arg;
- memset(v,0,sizeof(*v));
- v->type=VID_TYPE_TUNER;
- v->channels=1;
- v->audios=1;
- strcpy(v->name, "ActiveRadio");
- return 0;
- }
- case VIDIOCGTUNER:
- {
- struct video_tuner *v = arg;
- if(v->tuner) /* Only 1 tuner */
- return -EINVAL;
- v->rangelow=(87*16000);
- v->rangehigh=(108*16000);
- v->flags=VIDEO_TUNER_LOW;
- v->mode=VIDEO_MODE_AUTO;
- strcpy(v->name, "FM");
- v->signal=0xFFFF*tt_getsigstr(tt);
- return 0;
- }
- case VIDIOCSTUNER:
- {
- struct video_tuner *v = arg;
- if(v->tuner!=0)
- return -EINVAL;
- /* Only 1 tuner so no setting needed ! */
- return 0;
- }
- case VIDIOCGFREQ:
- {
- unsigned long *freq = arg;
- *freq = tt->curfreq;
- return 0;
- }
- case VIDIOCSFREQ:
- {
- unsigned long *freq = arg;
- tt->curfreq = *freq;
- tt_setfreq(tt, tt->curfreq);
- return 0;
- }
- case VIDIOCGAUDIO:
- {
- struct video_audio *v = arg;
- memset(v,0, sizeof(*v));
- v->flags|=VIDEO_AUDIO_MUTABLE|VIDEO_AUDIO_VOLUME;
- v->volume=tt->curvol * 6554;
- v->step=6554;
- strcpy(v->name, "Radio");
- return 0;
+ for (i = 24; i > -1; i--) { /* bit shift the values to the radiocard */
+ if (buffer[i] == 1) {
+ outb(WRT_EN | DATA, isa->io);
+ outb(WRT_EN | DATA | CLK_ON, isa->io);
+ outb(WRT_EN | DATA, isa->io);
+ } else {
+ outb(WRT_EN | 0x00, isa->io);
+ outb(WRT_EN | 0x00 | CLK_ON, isa->io);
}
- case VIDIOCSAUDIO:
- {
- struct video_audio *v = arg;
- if(v->audio)
- return -EINVAL;
- if(v->flags&VIDEO_AUDIO_MUTE)
- tt_mute(tt);
- else
- tt_setvol(tt,v->volume/6554);
- return 0;
- }
- default:
- return -ENOIOCTLCMD;
}
+ outb(0x00, isa->io);
+ return 0;
}
-static int tt_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static u32 terratec_g_signal(struct radio_isa_card *isa)
{
- return video_usercopy(inode, file, cmd, arg, tt_do_ioctl);
+ /* bit set = no signal present */
+ return (inb(isa->io) & 2) ? 0 : 0xffff;
}
-static struct tt_device terratec_unit;
-
-static struct file_operations terratec_fops = {
- .owner = THIS_MODULE,
- .open = video_exclusive_open,
- .release = video_exclusive_release,
- .ioctl = tt_ioctl,
- .llseek = no_llseek,
+static const struct radio_isa_ops terratec_ops = {
+ .alloc = terratec_alloc,
+ .s_mute_volume = terratec_s_mute_volume,
+ .s_frequency = terratec_s_frequency,
+ .g_signal = terratec_g_signal,
};
-static struct video_device terratec_radio=
-{
- .owner = THIS_MODULE,
- .name = "TerraTec ActiveRadio",
- .type = VID_TYPE_TUNER,
- .hardware = VID_HARDWARE_TERRATEC,
- .fops = &terratec_fops,
+static const int terratec_ioports[] = { 0x590 };
+
+static struct radio_isa_driver terratec_driver = {
+ .driver = {
+ .match = radio_isa_match,
+ .probe = radio_isa_probe,
+ .remove = radio_isa_remove,
+ .driver = {
+ .name = "radio-terratec",
+ },
+ },
+ .io_params = &io,
+ .radio_nr_params = &radio_nr,
+ .io_ports = terratec_ioports,
+ .num_of_io_ports = ARRAY_SIZE(terratec_ioports),
+ .region_size = 2,
+ .card = "TerraTec ActiveRadio",
+ .ops = &terratec_ops,
+ .has_stereo = true,
+ .max_volume = 10,
};
static int __init terratec_init(void)
{
- if(io==-1)
- {
- printk(KERN_ERR "You must set an I/O address with io=0x???\n");
- return -EINVAL;
- }
- if (!request_region(io, 2, "terratec"))
- {
- printk(KERN_ERR "TerraTec: port 0x%x already in use\n", io);
- return -EBUSY;
- }
-
- terratec_radio.priv=&terratec_unit;
-
- spin_lock_init(&lock);
-
- if(video_register_device(&terratec_radio, VFL_TYPE_RADIO, radio_nr)==-1)
- {
- release_region(io,2);
- return -EINVAL;
- }
-
- printk(KERN_INFO "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;
-
- return 0;
+ return isa_register_driver(&terratec_driver.driver, 1);
}
-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");
+ isa_unregister_driver(&terratec_driver.driver);
}
module_init(terratec_init);
-module_exit(terratec_cleanup_module);
+module_exit(terratec_exit);
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