#include <linux/io.h> /* outb, outb_p */
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
+#include "radio-isa.h"
#define DRIVER_VERSION "0.1.2"
MODULE_AUTHOR("Dr. Henrik Seidel");
MODULE_DESCRIPTION("A driver for the Typhoon radio card (a.k.a. EcoRadio).");
MODULE_LICENSE("GPL");
-MODULE_VERSION(DRIVER_VERSION);
+MODULE_VERSION("0.1.99");
#ifndef CONFIG_RADIO_TYPHOON_PORT
#define CONFIG_RADIO_TYPHOON_PORT -1
#endif
#ifndef CONFIG_RADIO_TYPHOON_MUTEFREQ
-#define CONFIG_RADIO_TYPHOON_MUTEFREQ 0
+#define CONFIG_RADIO_TYPHOON_MUTEFREQ 87000
#endif
-static int io = CONFIG_RADIO_TYPHOON_PORT;
-static int radio_nr = -1;
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the Typhoon card (0x316 or 0x336)");
-
-module_param(radio_nr, int, 0);
+#define TYPHOON_MAX 2
+static int io[TYPHOON_MAX] = { [0] = CONFIG_RADIO_TYPHOON_PORT,
+ [1 ... (TYPHOON_MAX - 1)] = -1 };
+static int radio_nr[TYPHOON_MAX] = { [0 ... (TYPHOON_MAX - 1)] = -1 };
static unsigned long mutefreq = CONFIG_RADIO_TYPHOON_MUTEFREQ;
+
+module_param_array(io, int, NULL, 0444);
+MODULE_PARM_DESC(io, "I/O addresses of the Typhoon card (0x316 or 0x336)");
+module_param_array(radio_nr, int, NULL, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio device numbers");
module_param(mutefreq, ulong, 0);
MODULE_PARM_DESC(mutefreq, "Frequency used when muting the card (in kHz)");
-#define BANNER "Typhoon Radio Card driver v" DRIVER_VERSION "\n"
-
struct typhoon {
- struct v4l2_device v4l2_dev;
- struct video_device vdev;
- int io;
- int curvol;
+ struct radio_isa_card isa;
int muted;
- unsigned long curfreq;
- unsigned long mutefreq;
- struct mutex lock;
};
-static struct typhoon typhoon_card;
-
-static void typhoon_setvol_generic(struct typhoon *dev, int vol)
+static struct radio_isa_card *typhoon_alloc(void)
{
- mutex_lock(&dev->lock);
- vol >>= 14; /* Map 16 bit to 2 bit */
- vol &= 3;
- outb_p(vol / 2, dev->io); /* Set the volume, high bit. */
- outb_p(vol % 2, dev->io + 2); /* Set the volume, low bit. */
- mutex_unlock(&dev->lock);
+ struct typhoon *ty = kzalloc(sizeof(*ty), GFP_KERNEL);
+
+ return ty ? &ty->isa : NULL;
}
-static int typhoon_setfreq_generic(struct typhoon *dev,
- unsigned long frequency)
+static int typhoon_s_frequency(struct radio_isa_card *isa, u32 freq)
{
unsigned long outval;
unsigned long x;
*
*/
- mutex_lock(&dev->lock);
- x = frequency / 160;
+ x = freq / 160;
outval = (x * x + 2500) / 5000;
outval = (outval * x + 5000) / 10000;
outval -= (10 * x * x + 10433) / 20866;
outval += 4 * x - 11505;
- outb_p((outval >> 8) & 0x01, dev->io + 4);
- outb_p(outval >> 9, dev->io + 6);
- outb_p(outval & 0xff, dev->io + 8);
- mutex_unlock(&dev->lock);
-
- return 0;
-}
-
-static int typhoon_setfreq(struct typhoon *dev, unsigned long frequency)
-{
- typhoon_setfreq_generic(dev, frequency);
- dev->curfreq = frequency;
- return 0;
-}
-
-static void typhoon_mute(struct typhoon *dev)
-{
- if (dev->muted == 1)
- return;
- typhoon_setvol_generic(dev, 0);
- typhoon_setfreq_generic(dev, dev->mutefreq);
- dev->muted = 1;
-}
-
-static void typhoon_unmute(struct typhoon *dev)
-{
- if (dev->muted == 0)
- return;
- typhoon_setfreq_generic(dev, dev->curfreq);
- typhoon_setvol_generic(dev, dev->curvol);
- dev->muted = 0;
-}
-
-static int typhoon_setvol(struct typhoon *dev, int vol)
-{
- if (dev->muted && vol != 0) { /* user is unmuting the card */
- dev->curvol = vol;
- typhoon_unmute(dev);
- return 0;
- }
- if (vol == dev->curvol) /* requested volume == current */
- return 0;
-
- if (vol == 0) { /* volume == 0 means mute the card */
- typhoon_mute(dev);
- dev->curvol = vol;
- return 0;
- }
- typhoon_setvol_generic(dev, vol);
- dev->curvol = vol;
- return 0;
-}
-
-static int vidioc_querycap(struct file *file, void *priv,
- struct v4l2_capability *v)
-{
- strlcpy(v->driver, "radio-typhoon", sizeof(v->driver));
- strlcpy(v->card, "Typhoon Radio", sizeof(v->card));
- strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
- v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
- return 0;
-}
-
-static int vidioc_g_tuner(struct file *file, void *priv,
- struct v4l2_tuner *v)
-{
- if (v->index > 0)
- return -EINVAL;
-
- strlcpy(v->name, "FM", sizeof(v->name));
- v->type = V4L2_TUNER_RADIO;
- v->rangelow = 87.5 * 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; /* We can't get the signal strength */
- return 0;
-}
-
-static int vidioc_s_tuner(struct file *file, void *priv,
- struct v4l2_tuner *v)
-{
- return v->index ? -EINVAL : 0;
-}
-
-static int vidioc_g_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct typhoon *dev = video_drvdata(file);
-
- if (f->tuner != 0)
- return -EINVAL;
- f->type = V4L2_TUNER_RADIO;
- f->frequency = dev->curfreq;
- return 0;
-}
-
-static int vidioc_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct typhoon *dev = video_drvdata(file);
-
- if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
- return -EINVAL;
- dev->curfreq = f->frequency;
- typhoon_setfreq(dev, dev->curfreq);
+ outb_p((outval >> 8) & 0x01, isa->io + 4);
+ outb_p(outval >> 9, isa->io + 6);
+ outb_p(outval & 0xff, isa->io + 8);
return 0;
}
-static int vidioc_queryctrl(struct file *file, void *priv,
- struct v4l2_queryctrl *qc)
+static int typhoon_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
{
- switch (qc->id) {
- case V4L2_CID_AUDIO_MUTE:
- return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
- case V4L2_CID_AUDIO_VOLUME:
- return v4l2_ctrl_query_fill(qc, 0, 65535, 16384, 65535);
- }
- return -EINVAL;
-}
+ struct typhoon *ty = container_of(isa, struct typhoon, isa);
-static int vidioc_g_ctrl(struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct typhoon *dev = video_drvdata(file);
+ if (mute)
+ vol = 0;
+ vol >>= 14; /* Map 16 bit to 2 bit */
+ vol &= 3;
+ outb_p(vol / 2, isa->io); /* Set the volume, high bit. */
+ outb_p(vol % 2, isa->io + 2); /* Set the volume, low bit. */
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- ctrl->value = dev->muted;
- return 0;
- case V4L2_CID_AUDIO_VOLUME:
- ctrl->value = dev->curvol;
- return 0;
+ if (vol == 0 && !ty->muted) {
+ ty->muted = true;
+ return typhoon_s_frequency(isa, mutefreq << 4);
}
- return -EINVAL;
-}
-
-static int vidioc_s_ctrl (struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct typhoon *dev = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- if (ctrl->value)
- typhoon_mute(dev);
- else
- typhoon_unmute(dev);
- return 0;
- case V4L2_CID_AUDIO_VOLUME:
- typhoon_setvol(dev, ctrl->value);
- return 0;
+ if (vol && ty->muted) {
+ ty->muted = false;
+ return typhoon_s_frequency(isa, isa->freq);
}
- return -EINVAL;
-}
-
-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)
-{
- return i ? -EINVAL : 0;
-}
-
-static int vidioc_g_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- a->index = 0;
- strlcpy(a->name, "Radio", sizeof(a->name));
- a->capability = V4L2_AUDCAP_STEREO;
- return 0;
-}
-
-static int vidioc_s_audio(struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- return a->index ? -EINVAL : 0;
-}
-
-static int vidioc_log_status(struct file *file, void *priv)
-{
- struct typhoon *dev = video_drvdata(file);
- struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
-
- v4l2_info(v4l2_dev, BANNER);
-#ifdef MODULE
- v4l2_info(v4l2_dev, "Load type: Driver loaded as a module\n\n");
-#else
- v4l2_info(v4l2_dev, "Load type: Driver compiled into kernel\n\n");
-#endif
- v4l2_info(v4l2_dev, "frequency = %lu kHz\n", dev->curfreq >> 4);
- v4l2_info(v4l2_dev, "volume = %d\n", dev->curvol);
- v4l2_info(v4l2_dev, "mute = %s\n", dev->muted ? "on" : "off");
- v4l2_info(v4l2_dev, "io = 0x%x\n", dev->io);
- v4l2_info(v4l2_dev, "mute frequency = %lu kHz\n", dev->mutefreq >> 4);
- return 0;
-}
-
-static const struct v4l2_file_operations typhoon_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = video_ioctl2,
+static const struct radio_isa_ops typhoon_ops = {
+ .alloc = typhoon_alloc,
+ .s_mute_volume = typhoon_s_mute_volume,
+ .s_frequency = typhoon_s_frequency,
};
-static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
- .vidioc_log_status = vidioc_log_status,
- .vidioc_querycap = vidioc_querycap,
- .vidioc_g_tuner = vidioc_g_tuner,
- .vidioc_s_tuner = vidioc_s_tuner,
- .vidioc_g_audio = vidioc_g_audio,
- .vidioc_s_audio = vidioc_s_audio,
- .vidioc_g_input = vidioc_g_input,
- .vidioc_s_input = vidioc_s_input,
- .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,
+static const int typhoon_ioports[] = { 0x316, 0x336 };
+
+static struct radio_isa_driver typhoon_driver = {
+ .driver = {
+ .match = radio_isa_match,
+ .probe = radio_isa_probe,
+ .remove = radio_isa_remove,
+ .driver = {
+ .name = "radio-typhoon",
+ },
+ },
+ .io_params = io,
+ .radio_nr_params = radio_nr,
+ .io_ports = typhoon_ioports,
+ .num_of_io_ports = ARRAY_SIZE(typhoon_ioports),
+ .region_size = 8,
+ .card = "Typhoon Radio",
+ .ops = &typhoon_ops,
+ .has_stereo = true,
+ .max_volume = 3,
};
static int __init typhoon_init(void)
{
- struct typhoon *dev = &typhoon_card;
- struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
- int res;
-
- strlcpy(v4l2_dev->name, "typhoon", sizeof(v4l2_dev->name));
- dev->io = io;
-
- if (dev->io == -1) {
- v4l2_err(v4l2_dev, "You must set an I/O address with io=0x316 or io=0x336\n");
- return -EINVAL;
- }
-
- if (mutefreq < 87000 || mutefreq > 108500) {
- v4l2_err(v4l2_dev, "You must set a frequency (in kHz) used when muting the card,\n");
- v4l2_err(v4l2_dev, "e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n");
- return -EINVAL;
- }
- dev->curfreq = dev->mutefreq = mutefreq << 4;
-
- mutex_init(&dev->lock);
- if (!request_region(dev->io, 8, "typhoon")) {
- v4l2_err(v4l2_dev, "port 0x%x already in use\n",
- dev->io);
- return -EBUSY;
- }
-
- res = v4l2_device_register(NULL, v4l2_dev);
- if (res < 0) {
- release_region(dev->io, 8);
- v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
- return res;
+ if (mutefreq < 87000 || mutefreq > 108000) {
+ printk(KERN_ERR "%s: You must set a frequency (in kHz) used when muting the card,\n",
+ typhoon_driver.driver.driver.name);
+ printk(KERN_ERR "%s: e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108000)\n",
+ typhoon_driver.driver.driver.name);
+ return -ENODEV;
}
- v4l2_info(v4l2_dev, BANNER);
-
- strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
- dev->vdev.v4l2_dev = v4l2_dev;
- dev->vdev.fops = &typhoon_fops;
- dev->vdev.ioctl_ops = &typhoon_ioctl_ops;
- dev->vdev.release = video_device_release_empty;
- video_set_drvdata(&dev->vdev, dev);
-
- /* mute card - prevents noisy bootups */
- typhoon_mute(dev);
-
- if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
- v4l2_device_unregister(&dev->v4l2_dev);
- release_region(dev->io, 8);
- return -EINVAL;
- }
- v4l2_info(v4l2_dev, "port 0x%x.\n", dev->io);
- v4l2_info(v4l2_dev, "mute frequency is %lu kHz.\n", mutefreq);
-
- return 0;
+ return isa_register_driver(&typhoon_driver.driver, TYPHOON_MAX);
}
static void __exit typhoon_exit(void)
{
- struct typhoon *dev = &typhoon_card;
-
- video_unregister_device(&dev->vdev);
- v4l2_device_unregister(&dev->v4l2_dev);
- release_region(dev->io, 8);
+ isa_unregister_driver(&typhoon_driver.driver);
}
+
module_init(typhoon_init);
module_exit(typhoon_exit);
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