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V4L/DVB (10885): radio-maestro: convert to v4l2_device.

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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2009-03-06 13:51:08 -03:00 committed by Mauro Carvalho Chehab
parent 502b71b570
commit 087c61848c
1 changed files with 165 additions and 175 deletions
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340
drivers/media/radio/radio-maestro.c
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@ -22,27 +22,23 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/ioport.h> #include <linux/ioport.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <asm/io.h> #include <linux/version.h> /* for KERNEL_VERSION MACRO */
#include <asm/uaccess.h>
#include <linux/pci.h> #include <linux/pci.h>
#include <linux/videodev2.h> #include <linux/videodev2.h>
#include <media/v4l2-common.h> #include <linux/io.h>
#include <linux/uaccess.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h> #include <media/v4l2-ioctl.h>
#include <linux/version.h> /* for KERNEL_VERSION MACRO */ MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
#define RADIO_VERSION KERNEL_VERSION(0,0,6) MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
#define DRIVER_VERSION "0.06" MODULE_LICENSE("GPL");
static struct v4l2_queryctrl radio_qctrl[] = { static int radio_nr = -1;
{ module_param(radio_nr, int, 0);
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute", #define RADIO_VERSION KERNEL_VERSION(0, 0, 6)
.minimum = 0, #define DRIVER_VERSION "0.06"
.maximum = 1,
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
}
};
#define GPIO_DATA 0x60 /* port offset from ESS_IO_BASE */ #define GPIO_DATA 0x60 /* port offset from ESS_IO_BASE */
@ -72,62 +68,27 @@ static struct v4l2_queryctrl radio_qctrl[] = {
#define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF) #define BITS2FREQ(x) ((x) * FREQ_STEP - FREQ_IF)
static int radio_nr = -1; struct maestro {
module_param(radio_nr, int, 0); struct v4l2_device v4l2_dev;
struct video_device vdev;
struct pci_dev *pdev;
struct mutex lock;
static unsigned long in_use; u16 io; /* base of Maestro card radio io (GPIO_DATA)*/
u16 muted; /* VIDEO_AUDIO_MUTE */
u16 stereo; /* VIDEO_TUNER_STEREO_ON */
u16 tuned; /* signal strength (0 or 0xffff) */
};
static int maestro_probe(struct pci_dev *pdev, const struct pci_device_id *ent); static inline struct maestro *to_maestro(struct v4l2_device *v4l2_dev)
static int maestro_exclusive_open(struct file *file)
{ {
return test_and_set_bit(0, &in_use) ? -EBUSY : 0; return container_of(v4l2_dev, struct maestro, v4l2_dev);
} }
static int maestro_exclusive_release(struct file *file) static u32 radio_bits_get(struct maestro *dev)
{ {
clear_bit(0, &in_use); u16 io = dev->io, l, rdata;
return 0; u32 data = 0;
}
static void maestro_remove(struct pci_dev *pdev);
static struct pci_device_id maestro_r_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1968),
.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
.class_mask = 0xffff00 },
{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1978),
.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
.class_mask = 0xffff00 },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, maestro_r_pci_tbl);
static struct pci_driver maestro_r_driver = {
.name = "maestro_radio",
.id_table = maestro_r_pci_tbl,
.probe = maestro_probe,
.remove = __devexit_p(maestro_remove),
};
static const struct v4l2_file_operations maestro_fops = {
.owner = THIS_MODULE,
.open = maestro_exclusive_open,
.release = maestro_exclusive_release,
.ioctl = video_ioctl2,
};
struct radio_device {
u16 io, /* base of Maestro card radio io (GPIO_DATA)*/
muted, /* VIDEO_AUDIO_MUTE */
stereo, /* VIDEO_TUNER_STEREO_ON */
tuned; /* signal strength (0 or 0xffff) */
};
static u32 radio_bits_get(struct radio_device *dev)
{
register u16 io=dev->io, l, rdata;
register u32 data=0;
u16 omask; u16 omask;
omask = inw(io + IO_MASK); omask = inw(io + IO_MASK);
@ -135,25 +96,23 @@ static u32 radio_bits_get(struct radio_device *dev)
outw(0, io); outw(0, io);
udelay(16); udelay(16);
for (l=24;l--;) { for (l = 24; l--;) {
outw(STR_CLK, io); /* HI state */ outw(STR_CLK, io); /* HI state */
udelay(2); udelay(2);
if(!l) if (!l)
dev->tuned = inw(io) & STR_MOST ? 0 : 0xffff; dev->tuned = inw(io) & STR_MOST ? 0 : 0xffff;
outw(0, io); /* LO state */ outw(0, io); /* LO state */
udelay(2); udelay(2);
data <<= 1; /* shift data */ data <<= 1; /* shift data */
rdata = inw(io); rdata = inw(io);
if(!l) if (!l)
dev->stereo = rdata & STR_MOST ? dev->stereo = (rdata & STR_MOST) ? 0 : 1;
0 : 1; else if (rdata & STR_DATA)
else data++;
if(rdata & STR_DATA)
data++;
udelay(2); udelay(2);
} }
if(dev->muted) if (dev->muted)
outw(STR_WREN, io); outw(STR_WREN, io);
udelay(4); udelay(4);
@ -162,18 +121,18 @@ static u32 radio_bits_get(struct radio_device *dev)
return data & 0x3ffe; return data & 0x3ffe;
} }
static void radio_bits_set(struct radio_device *dev, u32 data) static void radio_bits_set(struct maestro *dev, u32 data)
{ {
register u16 io=dev->io, l, bits; u16 io = dev->io, l, bits;
u16 omask, odir; u16 omask, odir;
omask = inw(io + IO_MASK); omask = inw(io + IO_MASK);
odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN); odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
outw(odir | STR_DATA, io + IO_DIR); outw(odir | STR_DATA, io + IO_DIR);
outw(~(STR_DATA | STR_CLK | STR_WREN), io + IO_MASK); outw(~(STR_DATA | STR_CLK | STR_WREN), io + IO_MASK);
udelay(16); udelay(16);
for (l=25;l;l--) { for (l = 25; l; l--) {
bits = ((data >> 18) & STR_DATA) | STR_WREN ; bits = ((data >> 18) & STR_DATA) | STR_WREN;
data <<= 1; /* shift data */ data <<= 1; /* shift data */
outw(bits, io); /* start strobe */ outw(bits, io); /* start strobe */
udelay(2); udelay(2);
@ -183,7 +142,7 @@ static void radio_bits_set(struct radio_device *dev, u32 data)
udelay(4); udelay(4);
} }
if(!dev->muted) if (!dev->muted)
outw(0, io); outw(0, io);
udelay(4); udelay(4);
@ -195,78 +154,79 @@ static void radio_bits_set(struct radio_device *dev, u32 data)
static int vidioc_querycap(struct file *file, void *priv, static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *v) struct v4l2_capability *v)
{ {
struct maestro *dev = video_drvdata(file);
strlcpy(v->driver, "radio-maestro", sizeof(v->driver)); strlcpy(v->driver, "radio-maestro", sizeof(v->driver));
strlcpy(v->card, "Maestro Radio", sizeof(v->card)); strlcpy(v->card, "Maestro Radio", sizeof(v->card));
sprintf(v->bus_info, "PCI"); snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(dev->pdev));
v->version = RADIO_VERSION; v->version = RADIO_VERSION;
v->capabilities = V4L2_CAP_TUNER; v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
return 0; return 0;
} }
static int vidioc_g_tuner(struct file *file, void *priv, static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v) struct v4l2_tuner *v)
{ {
struct radio_device *card = video_drvdata(file); struct maestro *dev = video_drvdata(file);
if (v->index > 0) if (v->index > 0)
return -EINVAL; return -EINVAL;
(void)radio_bits_get(card); mutex_lock(&dev->lock);
radio_bits_get(dev);
strcpy(v->name, "FM"); strlcpy(v->name, "FM", sizeof(v->name));
v->type = V4L2_TUNER_RADIO; v->type = V4L2_TUNER_RADIO;
v->rangelow = FREQ_LO; v->rangelow = FREQ_LO;
v->rangehigh = FREQ_HI; v->rangehigh = FREQ_HI;
v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO; v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
v->capability = V4L2_TUNER_CAP_LOW; v->capability = V4L2_TUNER_CAP_LOW;
if(card->stereo) if (dev->stereo)
v->audmode = V4L2_TUNER_MODE_STEREO; v->audmode = V4L2_TUNER_MODE_STEREO;
else else
v->audmode = V4L2_TUNER_MODE_MONO; v->audmode = V4L2_TUNER_MODE_MONO;
v->signal = card->tuned; v->signal = dev->tuned;
mutex_unlock(&dev->lock);
return 0; return 0;
} }
static int vidioc_s_tuner(struct file *file, void *priv, static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *v) struct v4l2_tuner *v)
{ {
if (v->index > 0) return v->index ? -EINVAL : 0;
return -EINVAL;
return 0;
} }
static int vidioc_s_frequency(struct file *file, void *priv, static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f) struct v4l2_frequency *f)
{ {
struct radio_device *card = video_drvdata(file); struct maestro *dev = video_drvdata(file);
if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) if (f->frequency < FREQ_LO || f->frequency > FREQ_HI)
return -EINVAL; return -EINVAL;
radio_bits_set(card, FREQ2BITS(f->frequency)); mutex_lock(&dev->lock);
radio_bits_set(dev, FREQ2BITS(f->frequency));
mutex_unlock(&dev->lock);
return 0; return 0;
} }
static int vidioc_g_frequency(struct file *file, void *priv, static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f) struct v4l2_frequency *f)
{ {
struct radio_device *card = video_drvdata(file); struct maestro *dev = video_drvdata(file);
f->type = V4L2_TUNER_RADIO; f->type = V4L2_TUNER_RADIO;
f->frequency = BITS2FREQ(radio_bits_get(card)); mutex_lock(&dev->lock);
f->frequency = BITS2FREQ(radio_bits_get(dev));
mutex_unlock(&dev->lock);
return 0; return 0;
} }
static int vidioc_queryctrl(struct file *file, void *priv, static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc) struct v4l2_queryctrl *qc)
{ {
int i; switch (qc->id) {
case V4L2_CID_AUDIO_MUTE:
for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) { return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
if (qc->id && qc->id == radio_qctrl[i].id) {
memcpy(qc, &(radio_qctrl[i]),
sizeof(*qc));
return 0;
}
} }
return -EINVAL; return -EINVAL;
} }
@ -274,11 +234,11 @@ static int vidioc_queryctrl(struct file *file, void *priv,
static int vidioc_g_ctrl(struct file *file, void *priv, static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl) struct v4l2_control *ctrl)
{ {
struct radio_device *card = video_drvdata(file); struct maestro *dev = video_drvdata(file);
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
ctrl->value = card->muted; ctrl->value = dev->muted;
return 0; return 0;
} }
return -EINVAL; return -EINVAL;
@ -287,34 +247,26 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
static int vidioc_s_ctrl(struct file *file, void *priv, static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl) struct v4l2_control *ctrl)
{ {
struct radio_device *card = video_drvdata(file); struct maestro *dev = video_drvdata(file);
register u16 io = card->io; u16 io = dev->io;
register u16 omask = inw(io + IO_MASK); u16 omask;
switch (ctrl->id) { switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_MUTE:
mutex_lock(&dev->lock);
omask = inw(io + IO_MASK);
outw(~STR_WREN, io + IO_MASK); outw(~STR_WREN, io + IO_MASK);
outw((card->muted = ctrl->value ) ? dev->muted = ctrl->value;
STR_WREN : 0, io); outw(dev->muted ? STR_WREN : 0, io);
udelay(4); udelay(4);
outw(omask, io + IO_MASK); outw(omask, io + IO_MASK);
msleep(125); msleep(125);
mutex_unlock(&dev->lock);
return 0; return 0;
} }
return -EINVAL; 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) static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
{ {
*i = 0; *i = 0;
@ -323,20 +275,57 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
static int vidioc_s_input(struct file *filp, void *priv, unsigned int i) static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
{ {
if (i != 0) return i ? -EINVAL : 0;
return -EINVAL; }
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; return 0;
} }
static int vidioc_s_audio(struct file *file, void *priv, static int vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *a) struct v4l2_audio *a)
{ {
if (a->index != 0) return a->index ? -EINVAL : 0;
return -EINVAL; }
static int maestro_open(struct file *file)
{
return 0; return 0;
} }
static u16 __devinit radio_power_on(struct radio_device *dev) static int maestro_release(struct file *file)
{
return 0;
}
static const struct v4l2_file_operations maestro_fops = {
.owner = THIS_MODULE,
.open = maestro_open,
.release = maestro_release,
.ioctl = video_ioctl2,
};
static const struct v4l2_ioctl_ops maestro_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 u16 __devinit radio_power_on(struct maestro *dev)
{ {
register u16 io = dev->io; register u16 io = dev->io;
register u32 ofreq; register u32 ofreq;
@ -360,33 +349,11 @@ static u16 __devinit radio_power_on(struct radio_device *dev)
return (ofreq == radio_bits_get(dev)); return (ofreq == radio_bits_get(dev));
} }
static const struct v4l2_ioctl_ops maestro_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 maestro_radio = {
.name = "Maestro radio",
.fops = &maestro_fops,
.ioctl_ops = &maestro_ioctl_ops,
.release = video_device_release,
};
static int __devinit maestro_probe(struct pci_dev *pdev, static int __devinit maestro_probe(struct pci_dev *pdev,
const struct pci_device_id *ent) const struct pci_device_id *ent)
{ {
struct radio_device *radio_unit; struct maestro *dev;
struct video_device *maestro_radio_inst; struct v4l2_device *v4l2_dev;
int retval; int retval;
retval = pci_enable_device(pdev); retval = pci_enable_device(pdev);
@ -397,46 +364,53 @@ static int __devinit maestro_probe(struct pci_dev *pdev,
retval = -ENOMEM; retval = -ENOMEM;
radio_unit = kzalloc(sizeof(*radio_unit), GFP_KERNEL); dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (radio_unit == NULL) { if (dev == NULL) {
dev_err(&pdev->dev, "not enough memory\n"); dev_err(&pdev->dev, "not enough memory\n");
goto err; goto err;
} }
radio_unit->io = pci_resource_start(pdev, 0) + GPIO_DATA; v4l2_dev = &dev->v4l2_dev;
mutex_init(&dev->lock);
dev->pdev = pdev;
maestro_radio_inst = video_device_alloc(); strlcpy(v4l2_dev->name, "maestro", sizeof(v4l2_dev->name));
if (maestro_radio_inst == NULL) {
dev_err(&pdev->dev, "not enough memory\n"); retval = v4l2_device_register(&pdev->dev, v4l2_dev);
if (retval < 0) {
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
goto errfr; goto errfr;
} }
memcpy(maestro_radio_inst, &maestro_radio, sizeof(maestro_radio)); dev->io = pci_resource_start(pdev, 0) + GPIO_DATA;
video_set_drvdata(maestro_radio_inst, radio_unit);
pci_set_drvdata(pdev, maestro_radio_inst);
retval = video_register_device(maestro_radio_inst, VFL_TYPE_RADIO, radio_nr); strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
dev->vdev.v4l2_dev = v4l2_dev;
dev->vdev.fops = &maestro_fops;
dev->vdev.ioctl_ops = &maestro_ioctl_ops;
dev->vdev.release = video_device_release_empty;
video_set_drvdata(&dev->vdev, dev);
retval = video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr);
if (retval) { if (retval) {
printk(KERN_ERR "can't register video device!\n"); v4l2_err(v4l2_dev, "can't register video device!\n");
goto errfr1; goto errfr1;
} }
if (!radio_power_on(radio_unit)) { if (!radio_power_on(dev)) {
retval = -EIO; retval = -EIO;
goto errunr; goto errunr;
} }
dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ " " v4l2_info(v4l2_dev, "version " DRIVER_VERSION "\n");
__DATE__ "\n");
dev_info(&pdev->dev, "radio chip initialized\n");
return 0; return 0;
errunr: errunr:
video_unregister_device(maestro_radio_inst); video_unregister_device(&dev->vdev);
errfr1: errfr1:
video_device_release(maestro_radio_inst); v4l2_device_unregister(v4l2_dev);
errfr: errfr:
kfree(radio_unit); kfree(dev);
err: err:
return retval; return retval;
@ -444,11 +418,31 @@ static int __devinit maestro_probe(struct pci_dev *pdev,
static void __devexit maestro_remove(struct pci_dev *pdev) static void __devexit maestro_remove(struct pci_dev *pdev)
{ {
struct video_device *vdev = pci_get_drvdata(pdev); struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
struct maestro *dev = to_maestro(v4l2_dev);
video_unregister_device(vdev); video_unregister_device(&dev->vdev);
v4l2_device_unregister(&dev->v4l2_dev);
} }
static struct pci_device_id maestro_r_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1968),
.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
.class_mask = 0xffff00 },
{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1978),
.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
.class_mask = 0xffff00 },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, maestro_r_pci_tbl);
static struct pci_driver maestro_r_driver = {
.name = "maestro_radio",
.id_table = maestro_r_pci_tbl,
.probe = maestro_probe,
.remove = __devexit_p(maestro_remove),
};
static int __init maestro_radio_init(void) static int __init maestro_radio_init(void)
{ {
int retval = pci_register_driver(&maestro_r_driver); int retval = pci_register_driver(&maestro_r_driver);
@ -466,7 +460,3 @@ static void __exit maestro_radio_exit(void)
module_init(maestro_radio_init); module_init(maestro_radio_init);
module_exit(maestro_radio_exit); module_exit(maestro_radio_exit);
MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
MODULE_LICENSE("GPL");