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path: root/drivers/media/radio/radio-terratec.c
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Diffstat (limited to 'drivers/media/radio/radio-terratec.c')
-rw-r--r--drivers/media/radio/radio-terratec.c442
1 files changed, 84 insertions, 358 deletions
diff --git a/drivers/media/radio/radio-terratec.c b/drivers/media/radio/radio-terratec.c
index 0798d71abd0..be10a802e3a 100644
--- a/drivers/media/radio/radio-terratec.c
+++ b/drivers/media/radio/radio-terratec.c
@@ -16,54 +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> /* request_region */
-#include <linux/delay.h> /* udelay */
-#include <asm/io.h> /* outb, outb_p */
-#include <asm/uaccess.h> /* copy to/from user */
#include <linux/videodev2.h> /* kernel radio structs */
-#include <media/v4l2-common.h>
+#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 <linux/spinlock.h>
+#include "radio-isa.h"
-#include <linux/version.h> /* for KERNEL_VERSION MACRO */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
+MODULE_AUTHOR("R. Offermans & others");
+MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.1.99");
-static struct v4l2_queryctrl radio_qctrl[] = {
- {
- .id = V4L2_CID_AUDIO_MUTE,
- .name = "Mute",
- .minimum = 0,
- .maximum = 1,
- .default_value = 1,
- .type = V4L2_CTRL_TYPE_BOOLEAN,
- },{
- .id = V4L2_CID_AUDIO_VOLUME,
- .name = "Volume",
- .minimum = 0,
- .maximum = 0xff,
- .step = 1,
- .default_value = 0xff,
- .type = V4L2_CTRL_TYPE_INTEGER,
- }
-};
+/* 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
@@ -71,374 +52,119 @@ static struct v4l2_queryctrl radio_qctrl[] = {
#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
-{
- unsigned long in_use;
- int port;
- int curvol;
- unsigned long curfreq;
- int muted;
-};
-
-
-/* local things */
-
-static void cardWriteVol(int volume)
-{
- 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);
-}
-
-
-static void tt_mute(struct tt_device *dev)
+static struct radio_isa_card *terratec_alloc(void)
{
- dev->muted = 1;
- cardWriteVol(0);
+ return kzalloc(sizeof(struct radio_isa_card), GFP_KERNEL);
}
-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)
{
+ int i;
-// 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;
- }
-
- 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)
+static int terratec_s_frequency(struct radio_isa_card *isa, u32 freq)
{
- int 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
- {
+ else {
buffer[i] = 1;
- rest = rest-temp;
+ rest = rest - temp;
}
i--;
p--;
- temp = temp/2;
+ 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);
+ 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);
}
}
- outb(0x00, BASEPORT);
-
- spin_unlock(&lock);
-
+ outb(0x00, isa->io);
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 */
-}
-
-static int vidioc_querycap(struct file *file, void *priv,
- struct v4l2_capability *v)
+static u32 terratec_g_signal(struct radio_isa_card *isa)
{
- strlcpy(v->driver, "radio-terratec", sizeof(v->driver));
- strlcpy(v->card, "ActiveRadio", sizeof(v->card));
- sprintf(v->bus_info, "ISA");
- v->version = RADIO_VERSION;
- v->capabilities = V4L2_CAP_TUNER;
- return 0;
+ /* bit set = no signal present */
+ return (inb(isa->io) & 2) ? 0 : 0xffff;
}
-static int vidioc_g_tuner(struct file *file, void *priv,
- struct v4l2_tuner *v)
-{
- struct tt_device *tt = video_drvdata(file);
-
- if (v->index > 0)
- return -EINVAL;
-
- strcpy(v->name, "FM");
- v->type = V4L2_TUNER_RADIO;
- v->rangelow = (87*16000);
- v->rangehigh = (108*16000);
- v->rxsubchans = V4L2_TUNER_SUB_MONO;
- v->capability = V4L2_TUNER_CAP_LOW;
- v->audmode = V4L2_TUNER_MODE_MONO;
- v->signal = 0xFFFF*tt_getsigstr(tt);
- return 0;
-}
-
-static int vidioc_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *v)
-{
- if (v->index > 0)
- return -EINVAL;
- return 0;
-}
-
-static int vidioc_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct tt_device *tt = video_drvdata(file);
-
- tt->curfreq = f->frequency;
- tt_setfreq(tt, tt->curfreq);
- return 0;
-}
-
-static int vidioc_g_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct tt_device *tt = video_drvdata(file);
-
- f->type = V4L2_TUNER_RADIO;
- f->frequency = tt->curfreq;
- return 0;
-}
-
-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
- if (qc->id && qc->id == radio_qctrl[i].id) {
- memcpy(qc, &(radio_qctrl[i]),
- sizeof(*qc));
- return 0;
- }
- }
- return -EINVAL;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct tt_device *tt = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (tt->muted)
- ctrl->value = 1;
- else
- ctrl->value = 0;
- return 0;
- case V4L2_CID_AUDIO_VOLUME:
- ctrl->value = tt->curvol * 6554;
- return 0;
- }
- return -EINVAL;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct tt_device *tt = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (ctrl->value)
- tt_mute(tt);
- else
- tt_setvol(tt,tt->curvol);
- return 0;
- case V4L2_CID_AUDIO_VOLUME:
- tt_setvol(tt,ctrl->value);
- return 0;
- }
- return -EINVAL;
-}
-
-static int vidioc_g_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- 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;
- return 0;
-}
-
-static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
-{
- if (i != 0)
- return -EINVAL;
- return 0;
-}
-
-static int vidioc_s_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- if (a->index != 0)
- return -EINVAL;
- return 0;
-}
-
-static struct tt_device terratec_unit;
-
-static int terratec_exclusive_open(struct file *file)
-{
- return test_and_set_bit(0, &terratec_unit.in_use) ? -EBUSY : 0;
-}
-
-static int terratec_exclusive_release(struct file *file)
-{
- clear_bit(0, &terratec_unit.in_use);
- return 0;
-}
-
-static const struct v4l2_file_operations terratec_fops = {
- .owner = THIS_MODULE,
- .open = terratec_exclusive_open,
- .release = terratec_exclusive_release,
- .ioctl = video_ioctl2,
+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 const struct v4l2_ioctl_ops terratec_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_g_tuner = vidioc_g_tuner,
- .vidioc_s_tuner = vidioc_s_tuner,
- .vidioc_g_frequency = vidioc_g_frequency,
- .vidioc_s_frequency = vidioc_s_frequency,
- .vidioc_queryctrl = vidioc_queryctrl,
- .vidioc_g_ctrl = vidioc_g_ctrl,
- .vidioc_s_ctrl = vidioc_s_ctrl,
- .vidioc_g_audio = vidioc_g_audio,
- .vidioc_s_audio = vidioc_s_audio,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
-};
-
-static struct video_device terratec_radio = {
- .name = "TerraTec ActiveRadio",
- .fops = &terratec_fops,
- .ioctl_ops = &terratec_ioctl_ops,
- .release = video_device_release_empty,
+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;
- }
-
- video_set_drvdata(&terratec_radio, &terratec_unit);
-
- spin_lock_init(&lock);
-
- if (video_register_device(&terratec_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
- 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);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-12 11:26:04 +0000