-/*
- * Guillemot Maxi Radio FM 2000 PCI radio card driver for Linux
+/*
+ * Guillemot Maxi Radio FM 2000 PCI radio card driver for Linux
* (C) 2001 Dimitromanolakis Apostolos <apdim@grecian.net>
*
* Based in the radio Maestro PCI driver. Actually it uses the same chip
* for radio but different pci controller.
*
* I didn't have any specs I reversed engineered the protocol from
- * the windows driver (radio.dll).
+ * the windows driver (radio.dll).
*
* The card uses the TEA5757 chip that includes a search function but it
- * is useless as I haven't found any way to read back the frequency. If
+ * is useless as I haven't found any way to read back the frequency. If
* anybody does please mail me.
*
* For the pdf file see:
* 0.75b
* - better pci interface thanks to Francois Romieu <romieu@cogenit.fr>
*
- * 0.75
+ * 0.75 Sun Feb 4 22:51:27 EET 2001
* - tiding up
* - removed support for multiple devices as it didn't work anyway
*
- * BUGS:
+ * BUGS:
* - card unmutes if you change frequency
*
+ * (c) 2006, 2007 by Mauro Carvalho Chehab <mchehab@infradead.org>:
+ * - Conversion to V4L2 API
+ * - Uses video_ioctl2 for parsing and to add debug support
*/
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/delay.h>
-#include <linux/sched.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
#include <linux/pci.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
+#include <linux/version.h> /* for KERNEL_VERSION MACRO */
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
-/* version 0.75 Sun Feb 4 22:51:27 EET 2001 */
-#define DRIVER_VERSION "0.75"
+MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
+MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
+MODULE_LICENSE("GPL");
+
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+
+static int debug;
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "activates debug info");
+
+#define DRIVER_VERSION "0.77"
+
+#define RADIO_VERSION KERNEL_VERSION(0, 7, 7)
+
+#define dprintk(dev, num, fmt, arg...) \
+ v4l2_dbg(num, debug, &dev->v4l2_dev, fmt, ## arg)
#ifndef PCI_VENDOR_ID_GUILLEMOT
#define PCI_VENDOR_ID_GUILLEMOT 0x5046
/* TEA5757 pin mappings */
-static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16 ;
-
-static int radio_nr = -1;
-module_param(radio_nr, int, 0);
-
+static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
-#define FREQ_LO 50*16000
-#define FREQ_HI 150*16000
+#define FREQ_LO (50 * 16000)
+#define FREQ_HI (150 * 16000)
#define FREQ_IF 171200 /* 10.7*16000 */
#define FREQ_STEP 200 /* 12.5*16 */
-#define FREQ2BITS(x) ((( (unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1))\
- /(FREQ_STEP<<2))<<2) /* (x==fmhz*16*1000) -> bits */
+/* (x==fmhz*16*1000) -> bits */
+#define FREQ2BITS(x) \
+ ((((unsigned int)(x) + FREQ_IF + (FREQ_STEP << 1)) / (FREQ_STEP << 2)) << 2)
#define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF)
-static int radio_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-
-static struct file_operations maxiradio_fops = {
- .owner = THIS_MODULE,
- .open = video_exclusive_open,
- .release = video_exclusive_release,
- .ioctl = radio_ioctl,
- .llseek = no_llseek,
-};
-static struct video_device maxiradio_radio =
+struct maxiradio
{
- .owner = THIS_MODULE,
- .name = "Maxi Radio FM2000 radio",
- .type = VID_TYPE_TUNER,
- .hardware = VID_HARDWARE_SF16MI,
- .fops = &maxiradio_fops,
-};
+ struct v4l2_device v4l2_dev;
+ struct video_device vdev;
+ struct pci_dev *pdev;
+
+ u16 io; /* base of radio io */
+ u16 muted; /* VIDEO_AUDIO_MUTE */
+ u16 stereo; /* VIDEO_TUNER_STEREO_ON */
+ u16 tuned; /* signal strength (0 or 0xffff) */
-static struct radio_device
-{
- __u16 io, /* base of radio io */
- muted, /* VIDEO_AUDIO_MUTE */
- stereo, /* VIDEO_TUNER_STEREO_ON */
- tuned; /* signal strength (0 or 0xffff) */
-
unsigned long freq;
-
- struct semaphore lock;
-} radio_unit = {0, 0, 0, 0, };
+ struct mutex lock;
+};
-static void outbit(unsigned long bit, __u16 io)
+static inline struct maxiradio *to_maxiradio(struct v4l2_device *v4l2_dev)
{
- if(bit != 0)
- {
- outb( power|wren|data ,io); udelay(4);
- outb( power|wren|data|clk ,io); udelay(4);
- outb( power|wren|data ,io); udelay(4);
- }
- else
- {
- outb( power|wren ,io); udelay(4);
- outb( power|wren|clk ,io); udelay(4);
- outb( power|wren ,io); udelay(4);
- }
+ return container_of(v4l2_dev, struct maxiradio, v4l2_dev);
}
-static void turn_power(__u16 io, int p)
+static void outbit(unsigned long bit, u16 io)
{
- if(p != 0) outb(power, io); else outb(0,io);
+ int val = power | wren | (bit ? data : 0);
+
+ outb(val, io);
+ udelay(4);
+ outb(val | clk, io);
+ udelay(4);
+ outb(val, io);
+ udelay(4);
}
+static void turn_power(struct maxiradio *dev, int p)
+{
+ if (p != 0) {
+ dprintk(dev, 1, "Radio powered on\n");
+ outb(power, dev->io);
+ } else {
+ dprintk(dev, 1, "Radio powered off\n");
+ outb(0, dev->io);
+ }
+}
-static void set_freq(__u16 io, __u32 data)
+static void set_freq(struct maxiradio *dev, u32 freq)
{
unsigned long int si;
int bl;
-
+ int io = dev->io;
+ int val = FREQ2BITS(freq);
+
/* TEA5757 shift register bits (see pdf) */
- outbit(0,io); // 24 search
- outbit(1,io); // 23 search up/down
-
- outbit(0,io); // 22 stereo/mono
+ outbit(0, io); /* 24 search */
+ outbit(1, io); /* 23 search up/down */
+
+ outbit(0, io); /* 22 stereo/mono */
+
+ outbit(0, io); /* 21 band */
+ outbit(0, io); /* 20 band (only 00=FM works I think) */
+
+ outbit(0, io); /* 19 port ? */
+ outbit(0, io); /* 18 port ? */
- outbit(0,io); // 21 band
- outbit(0,io); // 20 band (only 00=FM works I think)
+ outbit(0, io); /* 17 search level */
+ outbit(0, io); /* 16 search level */
- outbit(0,io); // 19 port ?
- outbit(0,io); // 18 port ?
-
- outbit(0,io); // 17 search level
- outbit(0,io); // 16 search level
-
si = 0x8000;
- for(bl = 1; bl <= 16 ; bl++) { outbit(data & si,io); si >>=1; }
-
- outb(power,io);
+ for (bl = 1; bl <= 16; bl++) {
+ outbit(val & si, io);
+ si >>= 1;
+ }
+
+ dprintk(dev, 1, "Radio freq set to %d.%02d MHz\n",
+ freq / 16000,
+ freq % 16000 * 100 / 16000);
+
+ turn_power(dev, 1);
}
-static int get_stereo(__u16 io)
-{
- outb(power,io); udelay(4);
+static int get_stereo(u16 io)
+{
+ outb(power,io);
+ udelay(4);
+
return !(inb(io) & mo_st);
}
-static int get_tune(__u16 io)
-{
- outb(power+clk,io); udelay(4);
+static int get_tune(u16 io)
+{
+ outb(power+clk,io);
+ udelay(4);
+
return !(inb(io) & mo_st);
}
-static inline int radio_function(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *v)
+{
+ struct maxiradio *dev = video_drvdata(file);
+
+ strlcpy(v->driver, "radio-maxiradio", sizeof(v->driver));
+ strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof(v->card));
+ snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(dev->pdev));
+ v->version = RADIO_VERSION;
+ v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+ return 0;
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *v)
+{
+ struct maxiradio *dev = video_drvdata(file);
+
+ if (v->index > 0)
+ return -EINVAL;
+
+ mutex_lock(&dev->lock);
+ strlcpy(v->name, "FM", sizeof(v->name));
+ v->type = V4L2_TUNER_RADIO;
+ v->rangelow = FREQ_LO;
+ v->rangehigh = FREQ_HI;
+ v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+ v->capability = V4L2_TUNER_CAP_LOW;
+ if (get_stereo(dev->io))
+ v->audmode = V4L2_TUNER_MODE_STEREO;
+ else
+ v->audmode = V4L2_TUNER_MODE_MONO;
+ v->signal = 0xffff * get_tune(dev->io);
+ mutex_unlock(&dev->lock);
+
+ 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_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_s_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
{
- struct video_device *dev = video_devdata(file);
- struct radio_device *card=dev->priv;
-
- switch(cmd) {
- case VIDIOCGCAP: {
- struct video_capability *v = arg;
-
- memset(v,0,sizeof(*v));
- strcpy(v->name, "Maxi Radio FM2000 radio");
- v->type=VID_TYPE_TUNER;
- v->channels=v->audios=1;
- return 0;
- }
- case VIDIOCGTUNER: {
- struct video_tuner *v = arg;
-
- if(v->tuner)
- return -EINVAL;
-
- card->stereo = 0xffff * get_stereo(card->io);
- card->tuned = 0xffff * get_tune(card->io);
-
- v->flags = VIDEO_TUNER_LOW | card->stereo;
- v->signal = card->tuned;
-
- strcpy(v->name, "FM");
-
- v->rangelow = FREQ_LO;
- v->rangehigh = FREQ_HI;
- v->mode = VIDEO_MODE_AUTO;
-
- return 0;
- }
- case VIDIOCSTUNER: {
- struct video_tuner *v = arg;
- if(v->tuner!=0)
- return -EINVAL;
- return 0;
- }
- case VIDIOCGFREQ: {
- unsigned long *freq = arg;
-
- *freq = card->freq;
- return 0;
- }
- case VIDIOCSFREQ: {
- unsigned long *freq = arg;
-
- if (*freq < FREQ_LO || *freq > FREQ_HI)
- return -EINVAL;
- card->freq = *freq;
- set_freq(card->io, FREQ2BITS(card->freq));
- msleep(125);
- return 0;
- }
- case VIDIOCGAUDIO: {
- struct video_audio *v = arg;
- memset(v,0,sizeof(*v));
- strcpy(v->name, "Radio");
- v->flags=VIDEO_AUDIO_MUTABLE | card->muted;
- v->mode=VIDEO_SOUND_STEREO;
- return 0;
- }
-
- case VIDIOCSAUDIO: {
- struct video_audio *v = arg;
-
- if(v->audio)
- return -EINVAL;
- card->muted = v->flags & VIDEO_AUDIO_MUTE;
- if(card->muted)
- turn_power(card->io, 0);
- else
- set_freq(card->io, FREQ2BITS(card->freq));
- return 0;
- }
- case VIDIOCGUNIT: {
- struct video_unit *v = arg;
-
- v->video=VIDEO_NO_UNIT;
- v->vbi=VIDEO_NO_UNIT;
- v->radio=dev->minor;
- v->audio=0;
- v->teletext=VIDEO_NO_UNIT;
- return 0;
- }
- default: return -ENOIOCTLCMD;
+ struct maxiradio *dev = video_drvdata(file);
+
+ if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+ return -EINVAL;
+ if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) {
+ dprintk(dev, 1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
+ f->frequency / 16000,
+ f->frequency % 16000 * 100 / 16000,
+ FREQ_LO / 16000, FREQ_HI / 16000);
+
+ return -EINVAL;
}
+
+ mutex_lock(&dev->lock);
+ dev->freq = f->frequency;
+ set_freq(dev, dev->freq);
+ msleep(125);
+ mutex_unlock(&dev->lock);
+
+ return 0;
}
-static int radio_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int vidioc_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
{
- struct video_device *dev = video_devdata(file);
- struct radio_device *card=dev->priv;
- int ret;
-
- down(&card->lock);
- ret = video_usercopy(inode, file, cmd, arg, radio_function);
- up(&card->lock);
- return ret;
+ struct maxiradio *dev = video_drvdata(file);
+
+ if (f->tuner != 0)
+ return -EINVAL;
+ f->type = V4L2_TUNER_RADIO;
+ f->frequency = dev->freq;
+
+ dprintk(dev, 4, "radio freq is %d.%02d MHz",
+ f->frequency / 16000,
+ f->frequency % 16000 * 100 / 16000);
+
+ return 0;
}
-MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
-MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
-MODULE_LICENSE("GPL");
+static int vidioc_queryctrl(struct file *file, void *priv,
+ struct v4l2_queryctrl *qc)
+{
+ switch (qc->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+ }
+ return -EINVAL;
+}
+
+static int vidioc_g_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct maxiradio *dev = video_drvdata(file);
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ ctrl->value = dev->muted;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int vidioc_s_ctrl(struct file *file, void *priv,
+ struct v4l2_control *ctrl)
+{
+ struct maxiradio *dev = video_drvdata(file);
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUDIO_MUTE:
+ mutex_lock(&dev->lock);
+ dev->muted = ctrl->value;
+ if (dev->muted)
+ turn_power(dev, 0);
+ else
+ set_freq(dev, dev->freq);
+ mutex_unlock(&dev->lock);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static const struct v4l2_file_operations maxiradio_fops = {
+ .owner = THIS_MODULE,
+ .ioctl = video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops maxiradio_ioctl_ops = {
+ .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 int __devinit maxiradio_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
- if(!request_region(pci_resource_start(pdev, 0),
- pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
- printk(KERN_ERR "radio-maxiradio: can't reserve I/O ports\n");
- goto err_out;
+ struct maxiradio *dev;
+ struct v4l2_device *v4l2_dev;
+ int retval = -ENOMEM;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ dev_err(&pdev->dev, "not enough memory\n");
+ return -ENOMEM;
}
- if (pci_enable_device(pdev))
- goto err_out_free_region;
+ v4l2_dev = &dev->v4l2_dev;
+ mutex_init(&dev->lock);
+ dev->pdev = pdev;
+ dev->muted = 1;
+ dev->freq = FREQ_LO;
- radio_unit.io = pci_resource_start(pdev, 0);
- init_MUTEX(&radio_unit.lock);
- maxiradio_radio.priv = &radio_unit;
+ strlcpy(v4l2_dev->name, "maxiradio", sizeof(v4l2_dev->name));
- if(video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr)==-1) {
- printk("radio-maxiradio: can't register device!");
- goto err_out_free_region;
+ retval = v4l2_device_register(&pdev->dev, v4l2_dev);
+ if (retval < 0) {
+ v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+ goto errfr;
}
- printk(KERN_INFO "radio-maxiradio: version "
- DRIVER_VERSION
- " time "
- __TIME__ " "
- __DATE__
- "\n");
+ if (!request_region(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
+ v4l2_err(v4l2_dev, "can't reserve I/O ports\n");
+ goto err_out;
+ }
+
+ if (pci_enable_device(pdev))
+ goto err_out_free_region;
+
+ dev->io = pci_resource_start(pdev, 0);
+ strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
+ dev->vdev.v4l2_dev = v4l2_dev;
+ dev->vdev.fops = &maxiradio_fops;
+ dev->vdev.ioctl_ops = &maxiradio_ioctl_ops;
+ dev->vdev.release = video_device_release_empty;
+ video_set_drvdata(&dev->vdev, dev);
+
+ if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+ v4l2_err(v4l2_dev, "can't register device!");
+ goto err_out_free_region;
+ }
+
+ v4l2_info(v4l2_dev, "version " DRIVER_VERSION
+ " time " __TIME__ " " __DATE__ "\n");
- printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
- radio_unit.io);
+ v4l2_info(v4l2_dev, "found Guillemot MAXI Radio device (io = 0x%x)\n",
+ dev->io);
return 0;
err_out_free_region:
release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
err_out:
+ v4l2_device_unregister(v4l2_dev);
+errfr:
+ kfree(dev);
return -ENODEV;
}
static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
{
- video_unregister_device(&maxiradio_radio);
+ struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
+ struct maxiradio *dev = to_maxiradio(v4l2_dev);
+
+ video_unregister_device(&dev->vdev);
+ v4l2_device_unregister(&dev->v4l2_dev);
release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
}
static struct pci_device_id maxiradio_pci_tbl[] = {
{ PCI_VENDOR_ID_GUILLEMOT, PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO,
PCI_ANY_ID, PCI_ANY_ID, },
- { 0,}
+ { 0 }
};
MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);
static int __init maxiradio_radio_init(void)
{
- return pci_module_init(&maxiradio_driver);
+ return pci_register_driver(&maxiradio_driver);
}
static void __exit maxiradio_radio_exit(void)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff