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Date: Tue, 20 Feb 2007 01:07:16 +0100
From: Adrian Bunk <bunk@...sta.de>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: mchehab@...radead.org, v4l-dvb-maintainer@...uxtv.org,
linux-kernel@...r.kernel.org
Subject: [RFC: 2.6 patch] drivers/media/video/bt8xx/: possible cleanups
This patch contains the following possible cleanups:
- remove the following unused global functions:
- bttv-if.c: bttv_get_cardinfo()
- bttv-if.c: bttv_get_id()
- bttv-if.c: bttv_get_gpio_queue()
- bttv-if.c: bttv_i2c_call()
- remove the following unused EXPORT_SYMBOL's:
- bttv-gpio.c: bttv_sub_bus_type
- bttv-gpio.c: bttv_gpio_inout
- bttv-gpio.c: bttv_gpio_read
- bttv-gpio.c: bttv_gpio_write
- bttv-gpio.c: bttv_gpio_bits
Signed-off-by: Adrian Bunk <bunk@...sta.de>
---
This patch was already sent on:
- 24 Jan 2007
drivers/media/video/bt8xx/bttv-gpio.c | 5 --
drivers/media/video/bt8xx/bttv-if.c | 50 --------------------------
drivers/media/video/bt8xx/bttv.h | 24 ------------
3 files changed, 79 deletions(-)
--- linux-2.6.17-rc1-mm3-full/drivers/media/video/bt8xx/bttv-gpio.c.old 2006-04-23 01:18:08.000000000 +0200
+++ linux-2.6.17-rc1-mm3-full/drivers/media/video/bt8xx/bttv-gpio.c 2006-04-23 01:19:52.000000000 +0200
@@ -71,7 +71,6 @@
.probe = bttv_sub_probe,
.remove = bttv_sub_remove,
};
-EXPORT_SYMBOL(bttv_sub_bus_type);
static void release_sub_device(struct device *dev)
{
@@ -166,7 +167,6 @@
btwrite(data,BT848_GPIO_OUT_EN);
spin_unlock_irqrestore(&btv->gpio_lock,flags);
}
-EXPORT_SYMBOL(bttv_gpio_inout);
u32 bttv_gpio_read(struct bttv_core *core)
{
@@ -176,7 +176,6 @@
value = btread(BT848_GPIO_DATA);
return value;
}
-EXPORT_SYMBOL(bttv_gpio_read);
void bttv_gpio_write(struct bttv_core *core, u32 value)
{
@@ -184,7 +183,6 @@
btwrite(value,BT848_GPIO_DATA);
}
-EXPORT_SYMBOL(bttv_gpio_write);
void bttv_gpio_bits(struct bttv_core *core, u32 mask, u32 bits)
{
@@ -199,7 +197,6 @@
btwrite(data,BT848_GPIO_DATA);
spin_unlock_irqrestore(&btv->gpio_lock,flags);
}
-EXPORT_SYMBOL(bttv_gpio_bits);
/*
* Local variables:
--- linux-2.6.17-rc1-mm3-full/drivers/media/video/bt8xx/bttv.h.old 2006-04-23 01:21:30.000000000 +0200
+++ linux-2.6.17-rc1-mm3-full/drivers/media/video/bt8xx/bttv.h 2006-04-23 01:23:19.000000000 +0200
@@ -287,17 +287,8 @@
/* this obsolete -- please use the sysfs-based
interface below for new code */
-/* returns card type + card ID (for bt878-based ones)
- for possible values see lines below beginning with #define BTTV_BOARD_UNKNOWN
- returns negative value if error occurred
-*/
-extern int bttv_get_cardinfo(unsigned int card, int *type,
- unsigned int *cardid);
extern struct pci_dev* bttv_get_pcidev(unsigned int card);
-/* obsolete, use bttv_get_cardinfo instead */
-extern int bttv_get_id(unsigned int card);
-
/* sets GPOE register (BT848_GPIO_OUT_EN) to new value:
data | (current_GPOE_value & ~mask)
returns negative value if error occurred
@@ -317,21 +308,6 @@
extern int bttv_write_gpio(unsigned int card,
unsigned long mask, unsigned long data);
-/* returns pointer to task queue which can be used as parameter to
- interruptible_sleep_on
- in interrupt handler if BT848_INT_GPINT bit is set - this queue is activated
- (wake_up_interruptible) and following call to the function bttv_read_gpio
- should return new value of GPDATA,
- returns NULL value if error occurred or queue is not available
- WARNING: because there is no buffer for GPIO data, one MUST
- process data ASAP
-*/
-extern wait_queue_head_t* bttv_get_gpio_queue(unsigned int card);
-
-/* call i2c clients
-*/
-extern void bttv_i2c_call(unsigned int card, unsigned int cmd, void *arg);
-
/* ---------------------------------------------------------- */
--- linux-2.6.17-rc1-mm3-full/drivers/media/video/bt8xx/bttv-if.c.old 2006-04-23 01:20:25.000000000 +0200
+++ linux-2.6.17-rc1-mm3-full/drivers/media/video/bt8xx/bttv-if.c 2006-04-23 01:23:39.000000000 +0200
@@ -33,32 +33,16 @@
#include "bttvp.h"
-EXPORT_SYMBOL(bttv_get_cardinfo);
EXPORT_SYMBOL(bttv_get_pcidev);
-EXPORT_SYMBOL(bttv_get_id);
EXPORT_SYMBOL(bttv_gpio_enable);
EXPORT_SYMBOL(bttv_read_gpio);
EXPORT_SYMBOL(bttv_write_gpio);
-EXPORT_SYMBOL(bttv_get_gpio_queue);
-EXPORT_SYMBOL(bttv_i2c_call);
/* ----------------------------------------------------------------------- */
/* Exported functions - for other modules which want to access the */
/* gpio ports (IR for example) */
/* see bttv.h for comments */
-int bttv_get_cardinfo(unsigned int card, int *type, unsigned *cardid)
-{
- printk("The bttv_* interface is obsolete and will go away,\n"
- "please use the new, sysfs based interface instead.\n");
- if (card >= bttv_num) {
- return -1;
- }
- *type = bttvs[card].c.type;
- *cardid = bttvs[card].cardid;
- return 0;
-}
-
struct pci_dev* bttv_get_pcidev(unsigned int card)
{
if (card >= bttv_num)
@@ -66,17 +50,6 @@
return bttvs[card].c.pci;
}
-int bttv_get_id(unsigned int card)
-{
- printk("The bttv_* interface is obsolete and will go away,\n"
- "please use the new, sysfs based interface instead.\n");
- if (card >= bttv_num) {
- return -1;
- }
- return bttvs[card].c.type;
-}
-
-
int bttv_gpio_enable(unsigned int card, unsigned long mask, unsigned long data)
{
struct bttv *btv;
@@ -130,28 +103,6 @@
return 0;
}
-wait_queue_head_t* bttv_get_gpio_queue(unsigned int card)
-{
- struct bttv *btv;
-
- if (card >= bttv_num) {
- return NULL;
- }
-
- btv = &bttvs[card];
- if (bttvs[card].shutdown) {
- return NULL;
- }
- return &btv->gpioq;
-}
-
-void bttv_i2c_call(unsigned int card, unsigned int cmd, void *arg)
-{
- if (card >= bttv_num)
- return;
- bttv_call_i2c_clients(&bttvs[card], cmd, arg);
-}
-
/*
* Local variables:
* c-basic-offset: 8
-
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