aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/radio/radio-maxiradio.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/radio/radio-maxiradio.c')
-rw-r--r--drivers/media/radio/radio-maxiradio.c471
1 files changed, 98 insertions, 373 deletions
diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
index c5dc00aa9c9..5236035f0f2 100644
--- a/drivers/media/radio/radio-maxiradio.c
+++ b/drivers/media/radio/radio-maxiradio.c
@@ -13,7 +13,7 @@
* anybody does please mail me.
*
* For the pdf file see:
- * http://www.semiconductors.philips.com/pip/TEA5757H/V1
+ * http://www.nxp.com/acrobat_download2/expired_datasheets/TEA5757_5759_3.pdf
*
*
* CHANGES:
@@ -37,415 +37,158 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
#include <linux/mutex.h>
-
#include <linux/pci.h>
#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <media/tea575x.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
-#define DRIVER_VERSION "0.77"
-
-#include <linux/version.h> /* for KERNEL_VERSION MACRO */
-#define RADIO_VERSION KERNEL_VERSION(0,7,7)
+MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
+MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000.");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1.0.0");
-static struct video_device maxiradio_radio;
+static int radio_nr = -1;
+module_param(radio_nr, int, 0644);
+MODULE_PARM_DESC(radio_nr, "Radio device number");
-#define dprintk(num, fmt, arg...) \
- do { \
- if (maxiradio_radio.debug >= num) \
- printk(KERN_DEBUG "%s: " fmt, \
- maxiradio_radio.name, ## arg); } while (0)
+/* TEA5757 pin mappings */
+static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
-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,
- }
-};
+static atomic_t maxiradio_instance = ATOMIC_INIT(0);
-#ifndef PCI_VENDOR_ID_GUILLEMOT
#define PCI_VENDOR_ID_GUILLEMOT 0x5046
-#endif
-
-#ifndef PCI_DEVICE_ID_GUILLEMOT
#define PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO 0x1001
-#endif
-
-
-/* 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 unsigned long in_use;
-
-#define FREQ_LO 50*16000
-#define FREQ_HI 150*16000
-
-#define FREQ_IF 171200 /* 10.7*16000 */
-#define FREQ_STEP 200 /* 12.5*16 */
-/* (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 maxiradio_exclusive_open(struct file *file)
-{
- return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
-}
-
-static int maxiradio_exclusive_release(struct file *file)
-{
- clear_bit(0, &in_use);
- return 0;
-}
-
-static const struct v4l2_file_operations maxiradio_fops = {
- .owner = THIS_MODULE,
- .open = maxiradio_exclusive_open,
- .release = maxiradio_exclusive_release,
- .ioctl = video_ioctl2,
-};
-
-static struct radio_device
+struct maxiradio
{
- __u16 io, /* base of radio io */
- muted, /* VIDEO_AUDIO_MUTE */
- stereo, /* VIDEO_TUNER_STEREO_ON */
- tuned; /* signal strength (0 or 0xffff) */
+ struct snd_tea575x tea;
+ struct v4l2_device v4l2_dev;
+ struct pci_dev *pdev;
- unsigned long freq;
-
- struct mutex lock;
-} radio_unit = {
- .muted =1,
- .freq = FREQ_LO,
+ u16 io; /* base of radio io */
};
-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 maxiradio_tea575x_set_pins(struct snd_tea575x *tea, u8 pins)
{
- if (p != 0) {
- dprintk(1, "Radio powered on\n");
- outb(power, io);
- } else {
- dprintk(1, "Radio powered off\n");
- outb(0,io);
- }
-}
+ struct maxiradio *dev = tea->private_data;
+ u8 bits = 0;
-static void set_freq(__u16 io, __u32 freq)
-{
- unsigned long int si;
- int bl;
- int val = FREQ2BITS(freq);
+ bits |= (pins & TEA575X_DATA) ? data : 0;
+ bits |= (pins & TEA575X_CLK) ? clk : 0;
+ bits |= (pins & TEA575X_WREN) ? wren : 0;
+ bits |= power;
- /* 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); /* 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); /* 17 search level */
- outbit(0, io); /* 16 search level */
-
- si = 0x8000;
- for (bl = 1; bl <= 16; bl++) {
- outbit(val & si, io);
- si >>= 1;
- }
-
- dprintk(1, "Radio freq set to %d.%02d MHz\n",
- freq / 16000,
- freq % 16000 * 100 / 16000);
-
- turn_power(io, 1);
-}
-
-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);
-
- return !(inb(io) & mo_st);
-}
-
-
-static int vidioc_querycap (struct file *file, void *priv,
- struct v4l2_capability *v)
-{
- strlcpy(v->driver, "radio-maxiradio", sizeof (v->driver));
- strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof (v->card));
- sprintf(v->bus_info,"ISA");
- v->version = RADIO_VERSION;
- v->capabilities = V4L2_CAP_TUNER;
-
- return 0;
+ outb(bits, dev->io);
}
-static int vidioc_g_tuner (struct file *file, void *priv,
- struct v4l2_tuner *v)
+/* Note: this card cannot read out the data of the shift registers,
+ only the mono/stereo pin works. */
+static u8 maxiradio_tea575x_get_pins(struct snd_tea575x *tea)
{
- struct radio_device *card = video_drvdata(file);
-
- if (v->index > 0)
- return -EINVAL;
+ struct maxiradio *dev = tea->private_data;
+ u8 bits = inb(dev->io);
- memset(v,0,sizeof(*v));
- strcpy(v->name, "FM");
- 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(card->io))
- v->audmode = V4L2_TUNER_MODE_STEREO;
- else
- v->audmode = V4L2_TUNER_MODE_MONO;
- v->signal=0xffff*get_tune(card->io);
-
- return 0;
+ return ((bits & data) ? TEA575X_DATA : 0) |
+ ((bits & mo_st) ? TEA575X_MOST : 0);
}
-static int vidioc_s_tuner (struct file *file, void *priv,
- struct v4l2_tuner *v)
+static void maxiradio_tea575x_set_direction(struct snd_tea575x *tea, bool output)
{
- if (v->index > 0)
- return -EINVAL;
-
- return 0;
}
-static int vidioc_g_audio (struct file *file, void *priv,
- struct v4l2_audio *a)
-{
- if (a->index > 1)
- return -EINVAL;
-
- strcpy(a->name, "FM");
- 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 int vidioc_s_frequency (struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct radio_device *card = video_drvdata(file);
-
- if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) {
- dprintk(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;
- }
-
- card->freq = f->frequency;
- set_freq(card->io, card->freq);
- msleep(125);
-
- return 0;
-}
-
-static int vidioc_g_frequency (struct file *file, void *priv,
- struct v4l2_frequency *f)
-{
- struct radio_device *card = video_drvdata(file);
-
- f->type = V4L2_TUNER_RADIO;
- f->frequency = card->freq;
-
- dprintk(4, "radio freq is %d.%02d MHz",
- f->frequency / 16000,
- f->frequency % 16000 * 100 / 16000);
-
- 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 struct snd_tea575x_ops maxiradio_tea_ops = {
+ .set_pins = maxiradio_tea575x_set_pins,
+ .get_pins = maxiradio_tea575x_get_pins,
+ .set_direction = maxiradio_tea575x_set_direction,
+};
-static int vidioc_g_ctrl (struct file *file, void *priv,
- struct v4l2_control *ctrl)
+static int maxiradio_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
{
- struct radio_device *card = video_drvdata(file);
+ struct maxiradio *dev;
+ struct v4l2_device *v4l2_dev;
+ int retval = -ENOMEM;
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- ctrl->value=card->muted;
- return (0);
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ dev_err(&pdev->dev, "not enough memory\n");
+ return -ENOMEM;
}
- return -EINVAL;
-}
+ v4l2_dev = &dev->v4l2_dev;
+ v4l2_device_set_name(v4l2_dev, "maxiradio", &maxiradio_instance);
-static int vidioc_s_ctrl (struct file *file, void *priv,
- struct v4l2_control *ctrl)
-{
- struct radio_device *card = video_drvdata(file);
-
- switch (ctrl->id) {
- case V4L2_CID_AUDIO_MUTE:
- card->muted = ctrl->value;
- if(card->muted)
- turn_power(card->io, 0);
- else
- set_freq(card->io, card->freq);
- return 0;
+ retval = v4l2_device_register(&pdev->dev, v4l2_dev);
+ if (retval < 0) {
+ v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+ goto errfr;
}
-
- return -EINVAL;
-}
-
-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 struct video_device maxiradio_radio = {
- .name = "Maxi Radio FM2000 radio",
- .fops = &maxiradio_fops,
- .ioctl_ops = &maxiradio_ioctl_ops,
- .release = video_device_release_empty,
-};
-
-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;
+ dev->tea.private_data = dev;
+ dev->tea.ops = &maxiradio_tea_ops;
+ /* The data pin cannot be read. This may be a hardware limitation, or
+ we just don't know how to read it. */
+ dev->tea.cannot_read_data = true;
+ dev->tea.v4l2_dev = v4l2_dev;
+ dev->tea.radio_nr = radio_nr;
+ strlcpy(dev->tea.card, "Maxi Radio FM2000", sizeof(dev->tea.card));
+ snprintf(dev->tea.bus_info, sizeof(dev->tea.bus_info),
+ "PCI:%s", pci_name(pdev));
+
+ retval = -ENODEV;
+
+ if (!request_region(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0), v4l2_dev->name)) {
+ dev_err(&pdev->dev, "can't reserve I/O ports\n");
+ goto err_hdl;
}
if (pci_enable_device(pdev))
goto err_out_free_region;
- radio_unit.io = pci_resource_start(pdev, 0);
- mutex_init(&radio_unit.lock);
- video_set_drvdata(&maxiradio_radio, &radio_unit);
-
- if (video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
- printk("radio-maxiradio: can't register device!");
+ dev->io = pci_resource_start(pdev, 0);
+ if (snd_tea575x_init(&dev->tea, THIS_MODULE)) {
+ printk(KERN_ERR "radio-maxiradio: Unable to detect TEA575x tuner\n");
goto err_out_free_region;
}
-
- printk(KERN_INFO "radio-maxiradio: version "
- DRIVER_VERSION
- " time "
- __TIME__ " "
- __DATE__
- "\n");
-
- printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
- radio_unit.io);
return 0;
err_out_free_region:
release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
-err_out:
- return -ENODEV;
+err_hdl:
+ v4l2_device_unregister(v4l2_dev);
+errfr:
+ kfree(dev);
+ return retval;
}
-static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
+static void maxiradio_remove(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);
+
+ snd_tea575x_exit(&dev->tea);
+ /* Turn off power */
+ outb(0, dev->io);
+ v4l2_device_unregister(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);
@@ -453,26 +196,8 @@ MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);
static struct pci_driver maxiradio_driver = {
.name = "radio-maxiradio",
.id_table = maxiradio_pci_tbl,
- .probe = maxiradio_init_one,
- .remove = __devexit_p(maxiradio_remove_one),
+ .probe = maxiradio_probe,
+ .remove = maxiradio_remove,
};
-static int __init maxiradio_radio_init(void)
-{
- return pci_register_driver(&maxiradio_driver);
-}
-
-static void __exit maxiradio_radio_exit(void)
-{
- pci_unregister_driver(&maxiradio_driver);
-}
-
-module_init(maxiradio_radio_init);
-module_exit(maxiradio_radio_exit);
-
-MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
-MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
-MODULE_LICENSE("GPL");
-
-module_param_named(debug,maxiradio_radio.debug, int, 0644);
-MODULE_PARM_DESC(debug,"activates debug info");
+module_pci_driver(maxiradio_driver);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-12 04:12:32 +0000