[PATCH 0/4] maestro radio driver rewritten to 2.6 pci api

[PATCH 0/4] maestro radio driver rewritten to 2.6 pci api

[Jiri Slaby]

This patches convert maestro radio driver to 2.6 pci API.

Generated in 2.6.15-rc5-mm3 kernel version.

01-pci-probing-for-maestro-radio.patch
02-maestro-radio-lindent.patch
03-maestro-types-change.patch
04-maestro-avoid-accessing-private-structures-directly.patch

[PATCH 1/4] media-radio: Pci probing for maestro radio

[Jiri Slaby]

Pci probing for maestro radio

Pci probing functions added, some functions were rewrited.
Use PCI_DEVICE macro.
dev_* used for printing when pci_dev available.
some static variables changed to dynamicto allow operation with multiple
cards.
Deleted macros for DEVICE_IDS, they are in pci_ids.h yet.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>

---
commit 91d2ae25f82de5c70a8051cf579bf28d46d6bd59
tree a4501a344df183a6b851bbe223f4d40cc3400f38
parent 035d4d0665e725eb326dc3f5b6e96a53b5c559e3
author <ku@bellona.(none)> Sat, 31 Dec 2005 16:54:57 +0100
committer <ku@bellona.(none)> Sat, 31 Dec 2005 16:54:57 +0100

 drivers/media/radio/radio-maestro.c |  173 ++++++++++++++++++++++-------------
 1 files changed, 109 insertions(+), 64 deletions(-)

diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -27,11 +27,7 @@
 #include <linux/pci.h>
 #include <linux/videodev.h>
 
-#define DRIVER_VERSION	"0.04"
-
-#define PCI_VENDOR_ESS                  0x125D
-#define PCI_DEVICE_ID_ESS_ESS1968       0x1968          /* Maestro 2    */
-#define PCI_DEVICE_ID_ESS_ESS1978       0x1978          /* Maestro 2E   */
+#define DRIVER_VERSION	"0.05"
 
 #define GPIO_DATA       0x60   /* port offset from ESS_IO_BASE */
 
@@ -66,6 +62,26 @@ module_param(radio_nr, int, 0);
 
 static int radio_ioctl(struct inode *inode, struct file *file,
 		       unsigned int cmd, unsigned long arg);
+static int maestro_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+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 struct file_operations maestro_fops = {
 	.owner		= THIS_MODULE,
@@ -85,14 +101,14 @@ static struct video_device maestro_radio
 	.fops           = &maestro_fops,
 };
 
-static struct radio_device
+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) */
 	struct  semaphore lock;
-} radio_unit = {0, 0, 0, 0, };
+};
 
 static __u32 radio_bits_get(struct radio_device *dev)
 {
@@ -251,40 +267,7 @@ static int radio_ioctl(struct inode *ino
 	return ret;
 }
 
-static __u16 radio_install(struct pci_dev *pcidev);
-
-MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
-MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
-MODULE_LICENSE("GPL");
-
-static void __exit maestro_radio_exit(void)
-{
-	video_unregister_device(&maestro_radio);
-}
-
-static int __init maestro_radio_init(void)
-{
-	register __u16 found=0;
-	struct pci_dev *pcidev = NULL;
-	while(!found && (pcidev = pci_find_device(PCI_VENDOR_ESS, 
-						  PCI_DEVICE_ID_ESS_ESS1968,
-						  pcidev)))
-		found |= radio_install(pcidev);
-	while(!found && (pcidev = pci_find_device(PCI_VENDOR_ESS,
-						  PCI_DEVICE_ID_ESS_ESS1978, 
-						  pcidev)))
-		found |= radio_install(pcidev);
-	if(!found) {
-		printk(KERN_INFO "radio-maestro: no devices found.\n");
-		return -ENODEV;
-	}
-	return 0;
-}
-
-module_init(maestro_radio_init);
-module_exit(maestro_radio_exit);
-
-static inline __u16 radio_power_on(struct radio_device *dev)
+static __u16 __devinit radio_power_on(struct radio_device *dev)
 {
 	register __u16 io=dev->io;
 	register __u32 ofreq;
@@ -305,29 +288,91 @@ static inline __u16 radio_power_on(struc
 	return (ofreq == radio_bits_get(dev));
 }
 
-static __u16 radio_install(struct pci_dev *pcidev)
+static int __devinit maestro_probe(struct pci_dev *pdev,
+	const struct pci_device_id *ent)
 {
-	if(((pcidev->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
-		return 0;
-	
-	radio_unit.io = pcidev->resource[0].start + GPIO_DATA;
-	maestro_radio.priv = &radio_unit;
-	init_MUTEX(&radio_unit.lock);
-	
-	if(radio_power_on(&radio_unit)) {
-		if(video_register_device(&maestro_radio, VFL_TYPE_RADIO, radio_nr)==-1) {
-			printk("radio-maestro: can't register device!");
-			return 0;
-		}
-		printk(KERN_INFO "radio-maestro: version "
-		       DRIVER_VERSION 
-		       " time " 
-		       __TIME__ "  "
-		       __DATE__
-		       "\n");
-		printk(KERN_INFO "radio-maestro: radio chip initialized\n");
-		return 1;
-	} else
-		return 0;   
+	struct radio_device *radio_unit;
+	struct video_device *maestro_radio_inst;
+	int retval;
+
+	retval = pci_enable_device(pdev);
+	if (retval) {
+		dev_err(&pdev->dev, "enabling pci device failed!\n");
+		goto err;
+	}
+
+	retval = -ENOMEM;
+
+	radio_unit = kzalloc(sizeof(*radio_unit), GFP_KERNEL);
+	if (radio_unit == NULL) {
+		dev_err(&pdev->dev, "not enough memory\n");
+		goto err;
+	}
+
+	radio_unit->io = pci_resource_start(pdev, 0) + GPIO_DATA;
+	init_MUTEX(&radio_unit->lock);
+
+	maestro_radio_inst = video_device_alloc();
+	if (maestro_radio_inst == NULL) {
+		dev_err(&pdev->dev, "not enough memory\n");
+		goto errfr;
+	}
+
+	memcpy(maestro_radio_inst, &maestro_radio, sizeof(maestro_radio));
+	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);
+	if (retval) {
+		printk(KERN_ERR "can't register video device!\n");
+		goto errfr1;
+	}
+
+	if (!radio_power_on(radio_unit)) {
+		retval = -EIO;
+		goto errfr1;
+	}
+
+	dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ "  "
+		__DATE__ "\n");
+	dev_info(&pdev->dev, "radio chip initialized\n");
+
+	return 0;
+errfr1:
+	kfree(maestro_radio_inst);
+errfr:
+	kfree(radio_unit);
+err:
+	return retval;
+
+}
+
+static void __devexit maestro_remove(struct pci_dev *pdev)
+{
+	struct video_device *vdev = pci_get_drvdata(pdev);
+
+	video_unregister_device(vdev);
 }
 
+MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
+MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
+MODULE_LICENSE("GPL");
+
+static int __init maestro_radio_init(void)
+{
+	int retval = pci_register_driver(&maestro_r_driver);
+
+	if (retval)
+		printk(KERN_ERR "error during registration pci driver\n");
+
+	return retval;
+}
+
+static void __exit maestro_radio_exit(void)
+{
+	pci_unregister_driver(&maestro_r_driver);
+}
+
+module_init(maestro_radio_init);
+module_exit(maestro_radio_exit);

Re: [PATCH 1/4] media-radio: Pci probing for maestro radio

[Andrew Morton]

"Jiri Slaby" <xslaby@fi.muni.cz> wrote:
>
> +	retval = video_register_device(maestro_radio_inst, VFL_TYPE_RADIO,
>  +		radio_nr);
>  +	if (retval) {
>  +		printk(KERN_ERR "can't register video device!\n");
>  +		goto errfr1;
>  +	}
>  +
>  +	if (!radio_power_on(radio_unit)) {
>  +		retval = -EIO;

Shouldn't we unregister the video device here?

>  +		goto errfr1;
>  +	}
>  +
>  +	dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ "  "
>  +		__DATE__ "\n");
>  +	dev_info(&pdev->dev, "radio chip initialized\n");
>  +
>  +	return 0;
>  +errfr1:
>  +	kfree(maestro_radio_inst);
>  +errfr:
>  +	kfree(radio_unit);
>  +err:
>  +	return retval;
>  +

Re: [PATCH 1/4] media-radio: Pci probing for maestro radio

[Adam Tlałka]

Dnia 04-01-2006 o 10:45:32 Andrew Morton <akpm@osdl.org> napisał:

> "Jiri Slaby" <xslaby@fi.muni.cz> wrote:
>>
>> +	retval = video_register_device(maestro_radio_inst, VFL_TYPE_RADIO,
>>  +		radio_nr);
>>  +	if (retval) {
>>  +		printk(KERN_ERR "can't register video device!\n");
>>  +		goto errfr1;
>>  +	}
>>  +
>>  +	if (!radio_power_on(radio_unit)) {
>>  +		retval = -EIO;
>
> Shouldn't we unregister the video device here?

Current behaviour means that device is here but not functioning properly  
but
we can unregister it of course because it is useless anyway ;-).

Regards
-- 
Adam Tlałka      mailto:atlka@pg.gda.pl    ^v^ ^v^ ^v^
System  & Network Administration Group           ~~~~~~
Computer Center,  Gdańsk University of Technology, Poland
PGP public key:   finger atlka@sunrise.pg.gda.pl

[PATCH] media-radio: video device unregister in one fail case [Was: Re: [PATCH 1/4] media-radio: Pci probing for maestro radio]

[Jiri Slaby]

Adam Tlalka wrote:
>Dnia 04-01-2006 o 10:45:32 Andrew Morton <akpm@osdl.org> napisal:
>
>> "Jiri Slaby" <xslaby@fi.muni.cz> wrote:
>>>
>>> +	retval = video_register_device(maestro_radio_inst, VFL_TYPE_RADIO,
>>>  +		radio_nr);
>>>  +	if (retval) {
>>>  +		printk(KERN_ERR "can't register video device!\n");
>>>  +		goto errfr1;
>>>  +	}
>>>  +
>>>  +	if (!radio_power_on(radio_unit)) {
>>>  +		retval = -EIO;
>>
>> Shouldn't we unregister the video device here?
>
>Current behaviour means that device is here but not functioning properly  
>but
>we can unregister it of course because it is useless anyway ;-).
Yup, here is a patch to avoid this. Thanks. [Applicable/dependent after/on
media-radio-maestro-types-change (last patch)]

media-radio-pci-probing-for-maestro-radio-unregister-video

Unregister video device if it is registered, but driver fail still in
initialization.

--
 radio-maestro.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletion(-)

--- drivers/media/radio/radio-maestro.c.old	2006-01-04 11:07:41.000000000 +0100
+++ drivers/media/radio/radio-maestro.c	2006-01-04 11:09:48.000000000 +0100
@@ -333,7 +333,7 @@ static int __devinit maestro_probe(struc
 
 	if (!radio_power_on(radio_unit)) {
 		retval = -EIO;
-		goto errfr1;
+		goto errunr;
 	}
 
 	dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ "  "
@@ -341,6 +341,8 @@ static int __devinit maestro_probe(struc
 	dev_info(&pdev->dev, "radio chip initialized\n");
 
 	return 0;
+errunr:
+	video_unregister_device(maestro_radio_inst);
 errfr1:
 	kfree(maestro_radio_inst);
 errfr:

[PATCH 3/4] media-radio: Maestro types change

[Jiri Slaby]

Maestro types change
[depends on Maestro Lindent]

__u16 --> u16 and so on

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>

---
commit a6bf47a35d16fad6207effb37532466c57d20b28
tree 52defb3f608ab7309dac7fd63717f3f811bc98b3
parent f3f0d3e94b346e181a62de564506db1be00bb8ef
author <ku@bellona.(none)> Sat, 31 Dec 2005 17:01:25 +0100
committer <ku@bellona.(none)> Sat, 31 Dec 2005 17:01:25 +0100

 drivers/media/radio/radio-maestro.c |   28 ++++++++++++++--------------
 1 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -103,18 +103,18 @@ static struct video_device maestro_radio
 
 struct radio_device
 {
-	__u16	io,	/* base of Maestro card radio io (GPIO_DATA)*/
+	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) */
 	struct	semaphore lock;
 };
 
-static __u32 radio_bits_get(struct radio_device *dev)
+static u32 radio_bits_get(struct radio_device *dev)
 {
-	register __u16 io=dev->io, l, rdata;
-	register __u32 data=0;
-	__u16 omask;
+	register u16 io=dev->io, l, rdata;
+	register u32 data=0;
+	u16 omask;
 
 	omask = inw(io + IO_MASK);
 	outw(~(STR_CLK | STR_WREN), io + IO_MASK);
@@ -148,10 +148,10 @@ static __u32 radio_bits_get(struct radio
 	return data & 0x3ffe;
 }
 
-static void radio_bits_set(struct radio_device *dev, __u32 data)
+static void radio_bits_set(struct radio_device *dev, u32 data)
 {
-	register __u16 io=dev->io, l, bits;
-	__u16 omask, odir;
+	register u16 io=dev->io, l, bits;
+	u16 omask, odir;
 
 	omask = inw(io + IO_MASK);
 	odir  = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
@@ -231,8 +231,8 @@ static inline int radio_function(struct 
 		if (v->audio)
 			return -EINVAL;
 		{
-			register __u16 io = card->io;
-			register __u16 omask = inw(io + IO_MASK);
+			register u16 io = card->io;
+			register u16 omask = inw(io + IO_MASK);
 			outw(~STR_WREN, io + IO_MASK);
 			outw((card->muted = v->flags & VIDEO_AUDIO_MUTE) ?
 				STR_WREN : 0, io);
@@ -268,11 +268,11 @@ static int radio_ioctl(struct inode *ino
 	return ret;
 }
 
-static __u16 __devinit radio_power_on(struct radio_device *dev)
+static u16 __devinit radio_power_on(struct radio_device *dev)
 {
-	register __u16 io = dev->io;
-	register __u32 ofreq;
-	__u16 omask, odir;
+	register u16 io = dev->io;
+	register u32 ofreq;
+	u16 omask, odir;
 
 	omask = inw(io + IO_MASK);
 	odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);

[PATCH 4/4] media-radio: Maestro avoid accessing private structures directly

[Jiri Slaby]

Maestro avoid accessing private structures directly

video_device.priv is not allowed to touch and it will be actually removed
in near future. Use video_get_drvdata() instead.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>

---
commit 7f0d24a69ec1df36ce01b8969217fa108fe2e92f
tree daefeb7b65d6b1a9794b57bea5b34ac39bbced21
parent a6bf47a35d16fad6207effb37532466c57d20b28
author <ku@bellona.(none)> Sat, 31 Dec 2005 17:04:14 +0100
committer <ku@bellona.(none)> Sat, 31 Dec 2005 17:04:14 +0100

 drivers/media/radio/radio-maestro.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -182,7 +182,7 @@ static inline int radio_function(struct 
 	unsigned int cmd, void *arg)
 {
 	struct video_device *dev = video_devdata(file);
-	struct radio_device *card = dev->priv;
+	struct radio_device *card = video_get_drvdata(dev);
 
 	switch (cmd) {
 	case VIDIOCGCAP: {
@@ -258,7 +258,7 @@ static int radio_ioctl(struct inode *ino
 	unsigned int cmd, unsigned long arg)
 {
 	struct video_device *dev = video_devdata(file);
-	struct radio_device *card = dev->priv;
+	struct radio_device *card = video_get_drvdata(dev);
 	int ret;
 
 	down(&card->lock);

[PATCH 2/4] media-radio: Maestro radio Lindent

[Jiri Slaby]

Maestro radio Lindent
[depends on mastro radio pci probing]

+some handwork

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>

---
commit f3f0d3e94b346e181a62de564506db1be00bb8ef
tree e52683bd644912b08905c2ce1dd719c9dea5b758
parent 91d2ae25f82de5c70a8051cf579bf28d46d6bd59
author <ku@bellona.(none)> Sat, 31 Dec 2005 17:00:05 +0100
committer <ku@bellona.(none)> Sat, 31 Dec 2005 17:00:05 +0100

 drivers/media/radio/radio-maestro.c |  210 ++++++++++++++++++-----------------
 1 files changed, 107 insertions(+), 103 deletions(-)

diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -29,28 +29,28 @@
 
 #define DRIVER_VERSION	"0.05"
 
-#define GPIO_DATA       0x60   /* port offset from ESS_IO_BASE */
+#define GPIO_DATA	0x60   /* port offset from ESS_IO_BASE */
 
 #define IO_MASK		4      /* mask      register offset from GPIO_DATA
 				bits 1=unmask write to given bit */
 #define IO_DIR		8      /* direction register offset from GPIO_DATA
 				bits 0/1=read/write direction */
 
-#define GPIO6           0x0040 /* mask bits for GPIO lines */
-#define GPIO7           0x0080
-#define GPIO8           0x0100
-#define GPIO9           0x0200
-
-#define STR_DATA        GPIO6  /* radio TEA5757 pins and GPIO bits */
-#define STR_CLK         GPIO7
-#define STR_WREN        GPIO8
-#define STR_MOST        GPIO9
+#define GPIO6		0x0040 /* mask bits for GPIO lines */
+#define GPIO7		0x0080
+#define GPIO8		0x0100
+#define GPIO9		0x0200
+
+#define STR_DATA	GPIO6  /* radio TEA5757 pins and GPIO bits */
+#define STR_CLK		GPIO7
+#define STR_WREN	GPIO8
+#define STR_MOST	GPIO9
 
 #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 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 */
@@ -61,7 +61,7 @@ static int radio_nr = -1;
 module_param(radio_nr, int, 0);
 
 static int radio_ioctl(struct inode *inode, struct file *file,
-		       unsigned int cmd, unsigned long arg);
+	unsigned int cmd, unsigned long arg);
 static int maestro_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 static void maestro_remove(struct pci_dev *pdev);
 
@@ -85,11 +85,11 @@ static struct pci_driver maestro_r_drive
 
 static struct file_operations maestro_fops = {
 	.owner		= THIS_MODULE,
-	.open           = video_exclusive_open,
-	.release        = video_exclusive_release,
+	.open		= video_exclusive_open,
+	.release	= video_exclusive_release,
 	.ioctl		= radio_ioctl,
 	.compat_ioctl	= v4l_compat_ioctl32,
-	.llseek         = no_llseek,
+	.llseek		= no_llseek,
 };
 
 static struct video_device maestro_radio=
@@ -98,7 +98,7 @@ static struct video_device maestro_radio
 	.name		= "Maestro radio",
 	.type		= VID_TYPE_TUNER,
 	.hardware	= VID_HARDWARE_SF16MI,
-	.fops           = &maestro_fops,
+	.fops		= &maestro_fops,
 };
 
 struct radio_device
@@ -107,7 +107,7 @@ struct radio_device
 		muted,	/* VIDEO_AUDIO_MUTE */
 		stereo,	/* VIDEO_TUNER_STEREO_ON */	
 		tuned;	/* signal strength (0 or 0xffff) */
-	struct  semaphore lock;
+	struct	semaphore lock;
 };
 
 static __u32 radio_bits_get(struct radio_device *dev)
@@ -115,6 +115,7 @@ static __u32 radio_bits_get(struct radio
 	register __u16 io=dev->io, l, rdata;
 	register __u32 data=0;
 	__u16 omask;
+
 	omask = inw(io + IO_MASK);
 	outw(~(STR_CLK | STR_WREN), io + IO_MASK);
 	outw(0, io);
@@ -137,10 +138,13 @@ static __u32 radio_bits_get(struct radio
 				data++;
 		udelay(2);
 	}
+
 	if(dev->muted)
 		outw(STR_WREN, io);
+
 	udelay(4);
 	outw(omask, io + IO_MASK);
+
 	return data & 0x3ffe;
 }
 
@@ -148,6 +152,7 @@ static void radio_bits_set(struct radio_
 {
 	register __u16 io=dev->io, l, bits;
 	__u16 omask, odir;
+
 	omask = inw(io + IO_MASK);
 	odir  = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
 	outw(odir | STR_DATA, io + IO_DIR);
@@ -163,8 +168,10 @@ static void radio_bits_set(struct radio_
 		outw(bits, io);			/* LO level */
 		udelay(4);
 	}
+
 	if(!dev->muted)
 		outw(0, io);
+
 	udelay(4);
 	outw(omask, io + IO_MASK);
 	outw(odir, io + IO_DIR);
@@ -172,108 +179,103 @@ static void radio_bits_set(struct radio_
 }
 
 static inline int radio_function(struct inode *inode, struct file *file,
-				 unsigned int cmd, void *arg)
+	unsigned int cmd, void *arg)
 {
 	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, "Maestro 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;
-			(void)radio_bits_get(card);
-			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 = BITS2FREQ(radio_bits_get(card));
-			return 0;
-		}
-		case VIDIOCSFREQ: {
-			unsigned long *freq = arg;
-			if (*freq<FREQ_LO || *freq>FREQ_HI )
-				return -EINVAL;
-			radio_bits_set(card, FREQ2BITS(*freq));
+	struct radio_device *card = dev->priv;
+
+	switch (cmd) {
+	case VIDIOCGCAP: {
+		struct video_capability *v = arg;
+		memset(v, 0, sizeof(*v));
+		strcpy(v->name, "Maestro 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;
+		(void)radio_bits_get(card);
+		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 = BITS2FREQ(radio_bits_get(card));
+		return 0;
+	} case VIDIOCSFREQ: {
+		unsigned long *freq = arg;
+		if (*freq < FREQ_LO || *freq > FREQ_HI)
+			return -EINVAL;
+		radio_bits_set(card, FREQ2BITS(*freq));
+		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;
+		{
+			register __u16 io = card->io;
+			register __u16 omask = inw(io + IO_MASK);
+			outw(~STR_WREN, io + IO_MASK);
+			outw((card->muted = v->flags & VIDEO_AUDIO_MUTE) ?
+				STR_WREN : 0, io);
+			udelay(4);
+			outw(omask, io + IO_MASK);
+			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;
-			{
-				register __u16 io=card->io;
-				register __u16 omask = inw(io + IO_MASK);
-				outw(~STR_WREN, io + IO_MASK);
-				outw((card->muted = v->flags & VIDEO_AUDIO_MUTE)
-				     ? STR_WREN : 0, io);
-				udelay(4);
-				outw(omask, io + IO_MASK);
-				msleep(125);
-				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;
+	} 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;
 	}
 }
 
 static int radio_ioctl(struct inode *inode, struct file *file,
-		       unsigned int cmd, unsigned long arg)
+	unsigned int cmd, unsigned long arg)
 {
 	struct video_device *dev = video_devdata(file);
-	struct radio_device *card=dev->priv;
+	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;
 }
 
 static __u16 __devinit radio_power_on(struct radio_device *dev)
 {
-	register __u16 io=dev->io;
+	register __u16 io = dev->io;
 	register __u32 ofreq;
 	__u16 omask, odir;
+
 	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_WREN, io + IO_DIR);
 	dev->muted = inw(io) & STR_WREN ? 0 : VIDEO_AUDIO_MUTE;
 	outw(odir, io + IO_DIR);
@@ -282,9 +284,11 @@ static __u16 __devinit radio_power_on(st
 	udelay(16);
 	outw(omask, io + IO_MASK);
 	ofreq = radio_bits_get(dev);
-	if((ofreq<FREQ2BITS(FREQ_LO)) || (ofreq>FREQ2BITS(FREQ_HI)))
+
+	if ((ofreq < FREQ2BITS(FREQ_LO)) || (ofreq > FREQ2BITS(FREQ_HI)))
 		ofreq = FREQ2BITS(FREQ_LO);
 	radio_bits_set(dev, ofreq);
+
 	return (ofreq == radio_bits_get(dev));
 }
 
@@ -335,7 +339,7 @@ static int __devinit maestro_probe(struc
 	}
 
 	dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ "  "
-		__DATE__ "\n");
+		 __DATE__ "\n");
 	dev_info(&pdev->dev, "radio chip initialized\n");
 
 	return 0;
@@ -355,10 +359,6 @@ static void __devexit maestro_remove(str
 	video_unregister_device(vdev);
 }
 
-MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
-MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
-MODULE_LICENSE("GPL");
-
 static int __init maestro_radio_init(void)
 {
 	int retval = pci_register_driver(&maestro_r_driver);
@@ -376,3 +376,7 @@ static void __exit maestro_radio_exit(vo
 
 module_init(maestro_radio_init);
 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");

[PATCH 5/4 :) I forgot] media-radio: Maestro radio delete owner line from video device

[Jiri Slaby]

Maestro radio delete owner line from video device

fops is used for module handling with ownership.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>

---
 radio-maestro.c |    4 +---
 1 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/radio/radio-maestro.c b/drivers/media/radio/radio-maestro.c
--- a/drivers/media/radio/radio-maestro.c
+++ b/drivers/media/radio/radio-maestro.c
@@ -92,9 +92,7 @@ static struct file_operations maestro_fo
 	.llseek		= no_llseek,
 };
 
-static struct video_device maestro_radio=
-{
-	.owner		= THIS_MODULE,
+static struct video_device maestro_radio = {
 	.name		= "Maestro radio",
 	.type		= VID_TYPE_TUNER,
 	.hardware	= VID_HARDWARE_SF16MI,

Re: [PATCH 0/5] maestro radio driver rewritten to 2.6 pci api

[Jiri Slaby]

[video_device_owner patch added]

This patches convert maestro radio driver to 2.6 pci API.

Generated in 2.6.15-rc5-mm3 kernel version.

01-pci-probing-for-maestro-radio.patch
02-maestro-radio-lindent.patch
03-maestro-types-change.patch
04-maestro-avoid-accessing-private-structures-directly.patch
05-video_device_owner.patch