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sparc: Kill videopix SBUS driver.

Browse Source 
This has been marked BROKEN for a long time and it's more likely
to get rewritten from scratch than to be fixed up and made usable.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-26 22:26:21 -07:00
parent 902663f6ea
commit 7f06a3b2c1
8 changed files with 0 additions and 1356 deletions
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1
arch/sparc/include/asm/Kbuild
View File

@ -40,5 +40,4 @@ header-y += reg_64.h
header-y += traps.h
header-y += uctx.h
header-y += utrap.h
header-y += vfc_ioctls.h
header-y += watchdog.h

58
arch/sparc/include/asm/vfc_ioctls.h
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@ -1,58 +0,0 @@
/* Copyright (c) 1996 by Manish Vachharajani */
#ifndef _LINUX_VFC_IOCTLS_H_
#define _LINUX_VFC_IOCTLS_H_
/* IOCTLs */
#define VFC_IOCTL(a) (('j' << 8) | a)
#define VFCGCTRL (VFC_IOCTL (0)) /* get vfc attributes */
#define VFCSCTRL (VFC_IOCTL (1)) /* set vfc attributes */
#define VFCGVID (VFC_IOCTL (2)) /* get video decoder attributes */
#define VFCSVID (VFC_IOCTL (3)) /* set video decoder attributes */
#define VFCHUE (VFC_IOCTL (4)) /* set hue */
#define VFCPORTCHG (VFC_IOCTL (5)) /* change port */
#define VFCRDINFO (VFC_IOCTL (6)) /* read info */
/* Options for setting the vfc attributes and status */
#define MEMPRST 0x1 /* reset FIFO ptr. */
#define CAPTRCMD 0x2 /* start capture and wait */
#define DIAGMODE 0x3 /* diag mode */
#define NORMMODE 0x4 /* normal mode */
#define CAPTRSTR 0x5 /* start capture */
#define CAPTRWAIT 0x6 /* wait for capture to finish */
/* Options for the decoder */
#define STD_NTSC 0x1 /* NTSC mode */
#define STD_PAL 0x2 /* PAL mode */
#define COLOR_ON 0x3 /* force color ON */
#define MONO 0x4 /* force color OFF */
/* Values returned by ioctl 2 */
#define NO_LOCK 1
#define NTSC_COLOR 2
#define NTSC_NOCOLOR 3
#define PAL_COLOR 4
#define PAL_NOCOLOR 5
/* Not too sure what this does yet */
/* Options for setting Field number */
#define ODD_FIELD 0x1
#define EVEN_FIELD 0x0
#define ACTIVE_ONLY 0x2
#define NON_ACTIVE 0x0
/* Debug options */
#define VFC_I2C_SEND 0
#define VFC_I2C_RECV 1
struct vfc_debug_inout
{
unsigned long addr;
unsigned long ret;
unsigned long len;
unsigned char __user *buffer;
};
#endif /* _LINUX_VFC_IOCTLS_H_ */

9
drivers/sbus/char/Kconfig
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@ -30,15 +30,6 @@ config OBP_FLASH
The OpenBoot PROM on Ultra systems is flashable. If you want to be
able to upgrade the OBP firmware, say Y here.
config SUN_VIDEOPIX
tristate "Videopix Frame Grabber (EXPERIMENTAL)"
depends on EXPERIMENTAL && (BROKEN || !64BIT)
help
Say Y here to support the Videopix Frame Grabber from Sun
Microsystems, commonly found on SPARCstations. This card, which is
based on the Phillips SAA9051, can handle NTSC and PAL/SECAM and
SVIDEO signals.
config TADPOLE_TS102_UCTRL
tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)"
depends on EXPERIMENTAL && SPARC32

2
drivers/sbus/char/Makefile
View File

@ -7,7 +7,6 @@
# Rewritten to use lists instead of if-statements.
#
vfc-objs := vfc_dev.o vfc_i2c.o
bbc-objs := bbc_i2c.o bbc_envctrl.o
obj-$(CONFIG_ENVCTRL) += envctrl.o
@ -17,7 +16,6 @@ obj-$(CONFIG_WATCHDOG_RIO) += riowatchdog.o
obj-$(CONFIG_OBP_FLASH) += flash.o
obj-$(CONFIG_SUN_OPENPROMIO) += openprom.o
obj-$(CONFIG_SUN_MOSTEK_RTC) += rtc.o
obj-$(CONFIG_SUN_VIDEOPIX) += vfc.o
obj-$(CONFIG_TADPOLE_TS102_UCTRL) += uctrl.o
obj-$(CONFIG_SUN_JSFLASH) += jsflash.o
obj-$(CONFIG_BBC_I2C) += bbc.o

171
drivers/sbus/char/vfc.h
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@ -1,171 +0,0 @@
#ifndef _LINUX_VFC_H_
#define _LINUX_VFC_H_
/*
* The control register for the vfc is at offset 0x4000
* The first field ram bank is located at offset 0x5000
* The second field ram bank is at offset 0x7000
* i2c_reg address the Phillips PCF8584(see notes in vfc_i2c.c)
* data and transmit register.
* i2c_s1 controls register s1 of the PCF8584
* i2c_write seems to be similar to i2c_write but I am not
* quite sure why sun uses it
*
* I am also not sure whether or not you can read the fram bank as a
* whole or whether you must read each word individually from offset
* 0x5000 as soon as I figure it out I will update this file */
struct vfc_regs {
char pad1[0x4000];
unsigned int control; /* Offset 0x4000 */
char pad2[0xffb]; /* from offset 0x4004 to 0x5000 */
unsigned int fram_bank1; /* Offset 0x5000 */
char pad3[0xffb]; /* from offset 0x5004 to 0x6000 */
unsigned int i2c_reg; /* Offset 0x6000 */
unsigned int i2c_magic2; /* Offset 0x6004 */
unsigned int i2c_s1; /* Offset 0x6008 */
unsigned int i2c_write; /* Offset 0x600c */
char pad4[0xff0]; /* from offset 0x6010 to 0x7000 */
unsigned int fram_bank2; /* Offset 0x7000 */
char pad5[0x1000];
};
#define VFC_SAA9051_NR (13)
#define VFC_SAA9051_ADDR (0x8a)
/* The saa9051 returns the following for its status
* bit 0 - 0
* bit 1 - SECAM color detected (1=found,0=not found)
* bit 2 - COLOR detected (1=found,0=not found)
* bit 3 - 0
* bit 4 - Field frequency bit (1=60Hz (NTSC), 0=50Hz (PAL))
* bit 5 - 1
* bit 6 - horizontal frequency lock (1=transmitter found,
* 0=no transmitter)
* bit 7 - Power on reset bit (1=reset,0=at least one successful
* read of the status byte)
*/
#define VFC_SAA9051_PONRES (0x80)
#define VFC_SAA9051_HLOCK (0x40)
#define VFC_SAA9051_FD (0x10)
#define VFC_SAA9051_CD (0x04)
#define VFC_SAA9051_CS (0x02)
/* The various saa9051 sub addresses */
#define VFC_SAA9051_IDEL (0)
#define VFC_SAA9051_HSY_START (1)
#define VFC_SAA9051_HSY_STOP (2)
#define VFC_SAA9051_HC_START (3)
#define VFC_SAA9051_HC_STOP (4)
#define VFC_SAA9051_HS_START (5)
#define VFC_SAA9051_HORIZ_PEAK (6)
#define VFC_SAA9051_HUE (7)
#define VFC_SAA9051_C1 (8)
#define VFC_SAA9051_C2 (9)
#define VFC_SAA9051_C3 (0xa)
#define VFC_SAA9051_SECAM_DELAY (0xb)
/* Bit settings for saa9051 sub address 0x06 */
#define VFC_SAA9051_AP1 (0x01)
#define VFC_SAA9051_AP2 (0x02)
#define VFC_SAA9051_COR1 (0x04)
#define VFC_SAA9051_COR2 (0x08)
#define VFC_SAA9051_BP1 (0x10)
#define VFC_SAA9051_BP2 (0x20)
#define VFC_SAA9051_PF (0x40)
#define VFC_SAA9051_BY (0x80)
/* Bit settings for saa9051 sub address 0x08 */
#define VFC_SAA9051_CCFR0 (0x01)
#define VFC_SAA9051_CCFR1 (0x02)
#define VFC_SAA9051_YPN (0x04)
#define VFC_SAA9051_ALT (0x08)
#define VFC_SAA9051_CO (0x10)
#define VFC_SAA9051_VTR (0x20)
#define VFC_SAA9051_FS (0x40)
#define VFC_SAA9051_HPLL (0x80)
/* Bit settings for saa9051 sub address 9 */
#define VFC_SAA9051_SS0 (0x01)
#define VFC_SAA9051_SS1 (0x02)
#define VFC_SAA9051_AFCC (0x04)
#define VFC_SAA9051_CI (0x08)
#define VFC_SAA9051_SA9D4 (0x10) /* Don't care bit */
#define VFC_SAA9051_OEC (0x20)
#define VFC_SAA9051_OEY (0x40)
#define VFC_SAA9051_VNL (0x80)
/* Bit settings for saa9051 sub address 0x0A */
#define VFC_SAA9051_YDL0 (0x01)
#define VFC_SAA9051_YDL1 (0x02)
#define VFC_SAA9051_YDL2 (0x04)
#define VFC_SAA9051_SS2 (0x08)
#define VFC_SAA9051_SS3 (0x10)
#define VFC_SAA9051_YC (0x20)
#define VFC_SAA9051_CT (0x40)
#define VFC_SAA9051_SYC (0x80)
#define VFC_SAA9051_SA(a,b) ((a)->saa9051_state_array[(b)+1])
#define vfc_update_saa9051(a) (vfc_i2c_sendbuf((a),VFC_SAA9051_ADDR,\
(a)->saa9051_state_array,\
VFC_SAA9051_NR))
struct vfc_dev {
volatile struct vfc_regs __iomem *regs;
struct vfc_regs *phys_regs;
unsigned int control_reg;
struct mutex device_lock_mtx;
int instance;
int busy;
unsigned long which_io;
unsigned char saa9051_state_array[VFC_SAA9051_NR];
};
void captstat_reset(struct vfc_dev *);
void memptr_reset(struct vfc_dev *);
int vfc_pcf8584_init(struct vfc_dev *);
void vfc_i2c_delay_no_busy(struct vfc_dev *, unsigned long);
void vfc_i2c_delay(struct vfc_dev *);
int vfc_i2c_sendbuf(struct vfc_dev *, unsigned char, char *, int) ;
int vfc_i2c_recvbuf(struct vfc_dev *, unsigned char, char *, int) ;
int vfc_i2c_reset_bus(struct vfc_dev *);
int vfc_init_i2c_bus(struct vfc_dev *);
#define VFC_CONTROL_DIAGMODE 0x10000000
#define VFC_CONTROL_MEMPTR 0x20000000
#define VFC_CONTROL_CAPTURE 0x02000000
#define VFC_CONTROL_CAPTRESET 0x04000000
#define VFC_STATUS_CAPTURE 0x08000000
#ifdef VFC_IOCTL_DEBUG
#define VFC_IOCTL_DEBUG_PRINTK(a) printk a
#else
#define VFC_IOCTL_DEBUG_PRINTK(a)
#endif
#ifdef VFC_I2C_DEBUG
#define VFC_I2C_DEBUG_PRINTK(a) printk a
#else
#define VFC_I2C_DEBUG_PRINTK(a)
#endif
#endif /* _LINUX_VFC_H_ */

736
drivers/sbus/char/vfc_dev.c
View File

@ -1,736 +0,0 @@
/*
* drivers/sbus/char/vfc_dev.c
*
* Driver for the Videopix Frame Grabber.
*
* In order to use the VFC you need to program the video controller
* chip. This chip is the Phillips SAA9051. You need to call their
* documentation ordering line to get the docs.
*
* There is very little documentation on the VFC itself. There is
* some useful info that can be found in the manuals that come with
* the card. I will hopefully write some better docs at a later date.
*
* Copyright (C) 1996 Manish Vachharajani (mvachhar@noc.rutgers.edu)
* */
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/mm.h>
#include <linux/smp_lock.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/sbus.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/uaccess.h>
#define VFC_MAJOR (60)
#if 0
#define VFC_IOCTL_DEBUG
#endif
#include "vfc.h"
#include <asm/vfc_ioctls.h>
static const struct file_operations vfc_fops;
static struct vfc_dev **vfc_dev_lst;
static char vfcstr[]="vfc";
static unsigned char saa9051_init_array[VFC_SAA9051_NR] = {
0x00, 0x64, 0x72, 0x52,
0x36, 0x18, 0xff, 0x20,
0xfc, 0x77, 0xe3, 0x50,
0x3e
};
static void vfc_lock_device(struct vfc_dev *dev)
{
mutex_lock(&dev->device_lock_mtx);
}
static void vfc_unlock_device(struct vfc_dev *dev)
{
mutex_unlock(&dev->device_lock_mtx);
}
static void vfc_captstat_reset(struct vfc_dev *dev)
{
dev->control_reg |= VFC_CONTROL_CAPTRESET;
sbus_writel(dev->control_reg, &dev->regs->control);
dev->control_reg &= ~VFC_CONTROL_CAPTRESET;
sbus_writel(dev->control_reg, &dev->regs->control);
dev->control_reg |= VFC_CONTROL_CAPTRESET;
sbus_writel(dev->control_reg, &dev->regs->control);
}
static void vfc_memptr_reset(struct vfc_dev *dev)
{
dev->control_reg |= VFC_CONTROL_MEMPTR;
sbus_writel(dev->control_reg, &dev->regs->control);
dev->control_reg &= ~VFC_CONTROL_MEMPTR;
sbus_writel(dev->control_reg, &dev->regs->control);
dev->control_reg |= VFC_CONTROL_MEMPTR;
sbus_writel(dev->control_reg, &dev->regs->control);
}
static int vfc_csr_init(struct vfc_dev *dev)
{
dev->control_reg = 0x80000000;
sbus_writel(dev->control_reg, &dev->regs->control);
udelay(200);
dev->control_reg &= ~0x80000000;
sbus_writel(dev->control_reg, &dev->regs->control);
udelay(100);
sbus_writel(0x0f000000, &dev->regs->i2c_magic2);
vfc_memptr_reset(dev);
dev->control_reg &= ~VFC_CONTROL_DIAGMODE;
dev->control_reg &= ~VFC_CONTROL_CAPTURE;
dev->control_reg |= 0x40000000;
sbus_writel(dev->control_reg, &dev->regs->control);
vfc_captstat_reset(dev);
return 0;
}
static int vfc_saa9051_init(struct vfc_dev *dev)
{
int i;
for (i = 0; i < VFC_SAA9051_NR; i++)
dev->saa9051_state_array[i] = saa9051_init_array[i];
vfc_i2c_sendbuf(dev,VFC_SAA9051_ADDR,
dev->saa9051_state_array, VFC_SAA9051_NR);
return 0;
}
static int init_vfc_hw(struct vfc_dev *dev)
{
vfc_lock_device(dev);
vfc_csr_init(dev);
vfc_pcf8584_init(dev);
vfc_init_i2c_bus(dev); /* hopefully this doesn't undo the magic
sun code above*/
vfc_saa9051_init(dev);
vfc_unlock_device(dev);
return 0;
}
static int init_vfc_devstruct(struct vfc_dev *dev, int instance)
{
dev->instance=instance;
mutex_init(&dev->device_lock_mtx);
dev->control_reg=0;
dev->busy=0;
return 0;
}
static int init_vfc_device(struct sbus_dev *sdev,struct vfc_dev *dev,
int instance)
{
if(dev == NULL) {
printk(KERN_ERR "VFC: Bogus pointer passed\n");
return -ENOMEM;
}
printk("Initializing vfc%d\n",instance);
dev->regs = NULL;
dev->regs = (volatile struct vfc_regs __iomem *)
sbus_ioremap(&sdev->resource[0], 0,
sizeof(struct vfc_regs), vfcstr);
dev->which_io = sdev->reg_addrs[0].which_io;
dev->phys_regs = (struct vfc_regs *) sdev->reg_addrs[0].phys_addr;
if (dev->regs == NULL)
return -EIO;
printk("vfc%d: registers mapped at phys_addr: 0x%lx\n virt_addr: 0x%lx\n",
instance,(unsigned long)sdev->reg_addrs[0].phys_addr,(unsigned long)dev->regs);
if (init_vfc_devstruct(dev, instance))
return -EINVAL;
if (init_vfc_hw(dev))
return -EIO;
return 0;
}
static struct vfc_dev *vfc_get_dev_ptr(int instance)
{
return vfc_dev_lst[instance];
}
static DEFINE_SPINLOCK(vfc_dev_lock);
static int vfc_open(struct inode *inode, struct file *file)
{
struct vfc_dev *dev;
lock_kernel();
spin_lock(&vfc_dev_lock);
dev = vfc_get_dev_ptr(iminor(inode));
if (dev == NULL) {
spin_unlock(&vfc_dev_lock);
unlock_kernel();
return -ENODEV;
}
if (dev->busy) {
spin_unlock(&vfc_dev_lock);
unlock_kernel();
return -EBUSY;
}
dev->busy = 1;
spin_unlock(&vfc_dev_lock);
vfc_lock_device(dev);
vfc_csr_init(dev);
vfc_pcf8584_init(dev);
vfc_init_i2c_bus(dev);
vfc_saa9051_init(dev);
vfc_memptr_reset(dev);
vfc_captstat_reset(dev);
vfc_unlock_device(dev);
unlock_kernel();
return 0;
}
static int vfc_release(struct inode *inode,struct file *file)
{
struct vfc_dev *dev;
spin_lock(&vfc_dev_lock);
dev = vfc_get_dev_ptr(iminor(inode));
if (!dev || !dev->busy) {
spin_unlock(&vfc_dev_lock);
return -EINVAL;
}
dev->busy = 0;
spin_unlock(&vfc_dev_lock);
return 0;
}
static int vfc_debug(struct vfc_dev *dev, int cmd, void __user *argp)
{
struct vfc_debug_inout inout;
unsigned char *buffer;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
switch(cmd) {
case VFC_I2C_SEND:
if(copy_from_user(&inout, argp, sizeof(inout)))
return -EFAULT;
buffer = kmalloc(inout.len, GFP_KERNEL);
if (buffer == NULL)
return -ENOMEM;
if(copy_from_user(buffer, inout.buffer, inout.len)) {
kfree(buffer);
return -EFAULT;
}
vfc_lock_device(dev);
inout.ret=
vfc_i2c_sendbuf(dev,inout.addr & 0xff,
buffer,inout.len);
if (copy_to_user(argp,&inout,sizeof(inout))) {
vfc_unlock_device(dev);
kfree(buffer);
return -EFAULT;
}
vfc_unlock_device(dev);
break;
case VFC_I2C_RECV:
if (copy_from_user(&inout, argp, sizeof(inout)))
return -EFAULT;
buffer = kzalloc(inout.len, GFP_KERNEL);
if (buffer == NULL)
return -ENOMEM;
vfc_lock_device(dev);
inout.ret=
vfc_i2c_recvbuf(dev,inout.addr & 0xff
,buffer,inout.len);
vfc_unlock_device(dev);
if (copy_to_user(inout.buffer, buffer, inout.len)) {
kfree(buffer);
return -EFAULT;
}
if (copy_to_user(argp,&inout,sizeof(inout))) {
kfree(buffer);
return -EFAULT;
}
kfree(buffer);
break;
default:
return -EINVAL;
};
return 0;
}
static int vfc_capture_start(struct vfc_dev *dev)
{
vfc_captstat_reset(dev);
dev->control_reg = sbus_readl(&dev->regs->control);
if((dev->control_reg & VFC_STATUS_CAPTURE)) {
printk(KERN_ERR "vfc%d: vfc capture status not reset\n",
dev->instance);
return -EIO;
}
vfc_lock_device(dev);
dev->control_reg &= ~VFC_CONTROL_CAPTURE;
sbus_writel(dev->control_reg, &dev->regs->control);
dev->control_reg |= VFC_CONTROL_CAPTURE;
sbus_writel(dev->control_reg, &dev->regs->control);
dev->control_reg &= ~VFC_CONTROL_CAPTURE;
sbus_writel(dev->control_reg, &dev->regs->control);
vfc_unlock_device(dev);
return 0;
}
static int vfc_capture_poll(struct vfc_dev *dev)
{
int timeout = 1000;
while (!timeout--) {
if (sbus_readl(&dev->regs->control) & VFC_STATUS_CAPTURE)
break;
vfc_i2c_delay_no_busy(dev, 100);
}
if(!timeout) {
printk(KERN_WARNING "vfc%d: capture timed out\n",
dev->instance);
return -ETIMEDOUT;
}
return 0;
}
static int vfc_set_control_ioctl(struct inode *inode, struct file *file,
struct vfc_dev *dev, unsigned long arg)
{
int setcmd, ret = 0;
if (copy_from_user(&setcmd,(void __user *)arg,sizeof(unsigned int)))
return -EFAULT;
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCSCTRL) arg=0x%x\n",
dev->instance,setcmd));
switch(setcmd) {
case MEMPRST:
vfc_lock_device(dev);
vfc_memptr_reset(dev);
vfc_unlock_device(dev);
ret=0;
break;
case CAPTRCMD:
vfc_capture_start(dev);
vfc_capture_poll(dev);
break;
case DIAGMODE:
if(capable(CAP_SYS_ADMIN)) {
vfc_lock_device(dev);
dev->control_reg |= VFC_CONTROL_DIAGMODE;
sbus_writel(dev->control_reg, &dev->regs->control);
vfc_unlock_device(dev);
ret = 0;
} else {
ret = -EPERM;
}
break;
case NORMMODE:
vfc_lock_device(dev);
dev->control_reg &= ~VFC_CONTROL_DIAGMODE;
sbus_writel(dev->control_reg, &dev->regs->control);
vfc_unlock_device(dev);
ret = 0;
break;
case CAPTRSTR:
vfc_capture_start(dev);
ret = 0;
break;
case CAPTRWAIT:
vfc_capture_poll(dev);
ret = 0;
break;
default:
ret = -EINVAL;
break;
};
return ret;
}
static int vfc_port_change_ioctl(struct inode *inode, struct file *file,
struct vfc_dev *dev, unsigned long arg)
{
int ret = 0;
int cmd;
if(copy_from_user(&cmd, (void __user *)arg, sizeof(unsigned int))) {
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
"vfc_port_change_ioctl\n",
dev->instance));
return -EFAULT;
}
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCPORTCHG) arg=0x%x\n",
dev->instance, cmd));
switch(cmd) {
case 1:
case 2:
VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_START) = 0x72;
VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_STOP) = 0x52;
VFC_SAA9051_SA(dev,VFC_SAA9051_HC_START) = 0x36;
VFC_SAA9051_SA(dev,VFC_SAA9051_HC_STOP) = 0x18;
VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) = VFC_SAA9051_BP2;
VFC_SAA9051_SA(dev,VFC_SAA9051_C3) = VFC_SAA9051_CT | VFC_SAA9051_SS3;
VFC_SAA9051_SA(dev,VFC_SAA9051_SECAM_DELAY) = 0x3e;
break;
case 3:
VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_START) = 0x3a;
VFC_SAA9051_SA(dev,VFC_SAA9051_HSY_STOP) = 0x17;
VFC_SAA9051_SA(dev,VFC_SAA9051_HC_START) = 0xfa;
VFC_SAA9051_SA(dev,VFC_SAA9051_HC_STOP) = 0xde;
VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) =
VFC_SAA9051_BY | VFC_SAA9051_PF | VFC_SAA9051_BP2;
VFC_SAA9051_SA(dev,VFC_SAA9051_C3) = VFC_SAA9051_YC;
VFC_SAA9051_SA(dev,VFC_SAA9051_SECAM_DELAY) = 0;
VFC_SAA9051_SA(dev,VFC_SAA9051_C2) &=
~(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
break;
default:
ret = -EINVAL;
return ret;
break;
}
switch(cmd) {
case 1:
VFC_SAA9051_SA(dev,VFC_SAA9051_C2) |=
(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
break;
case 2:
VFC_SAA9051_SA(dev,VFC_SAA9051_C2) &=
~(VFC_SAA9051_SS0 | VFC_SAA9051_SS1);
VFC_SAA9051_SA(dev,VFC_SAA9051_C2) |= VFC_SAA9051_SS0;
break;
case 3:
break;
default:
ret = -EINVAL;
return ret;
break;
}
VFC_SAA9051_SA(dev,VFC_SAA9051_C3) &= ~(VFC_SAA9051_SS2);
ret=vfc_update_saa9051(dev);
udelay(500);
VFC_SAA9051_SA(dev,VFC_SAA9051_C3) |= (VFC_SAA9051_SS2);
ret=vfc_update_saa9051(dev);
return ret;
}
static int vfc_set_video_ioctl(struct inode *inode, struct file *file,
struct vfc_dev *dev, unsigned long arg)
{
int ret = 0;
int cmd;
if(copy_from_user(&cmd, (void __user *)arg, sizeof(unsigned int))) {
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
"vfc_set_video_ioctl\n",
dev->instance));
return ret;
}
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCSVID) arg=0x%x\n",
dev->instance, cmd));
switch(cmd) {
case STD_NTSC:
VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~VFC_SAA9051_ALT;
VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_YPN |
VFC_SAA9051_CCFR0 | VFC_SAA9051_CCFR1 | VFC_SAA9051_FS;
ret = vfc_update_saa9051(dev);
break;
case STD_PAL:
VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~(VFC_SAA9051_YPN |
VFC_SAA9051_CCFR1 |
VFC_SAA9051_CCFR0 |
VFC_SAA9051_FS);
VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_ALT;
ret = vfc_update_saa9051(dev);
break;
case COLOR_ON:
VFC_SAA9051_SA(dev,VFC_SAA9051_C1) |= VFC_SAA9051_CO;
VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) &=
~(VFC_SAA9051_BY | VFC_SAA9051_PF);
ret = vfc_update_saa9051(dev);
break;
case MONO:
VFC_SAA9051_SA(dev,VFC_SAA9051_C1) &= ~(VFC_SAA9051_CO);
VFC_SAA9051_SA(dev,VFC_SAA9051_HORIZ_PEAK) |=
(VFC_SAA9051_BY | VFC_SAA9051_PF);
ret = vfc_update_saa9051(dev);
break;
default:
ret = -EINVAL;
break;
};
return ret;
}
static int vfc_get_video_ioctl(struct inode *inode, struct file *file,
struct vfc_dev *dev, unsigned long arg)
{
int ret = 0;
unsigned int status = NO_LOCK;
unsigned char buf[1];
if(vfc_i2c_recvbuf(dev, VFC_SAA9051_ADDR, buf, 1)) {
printk(KERN_ERR "vfc%d: Unable to get status\n",
dev->instance);
return -EIO;
}
if(buf[0] & VFC_SAA9051_HLOCK) {
status = NO_LOCK;
} else if(buf[0] & VFC_SAA9051_FD) {
if(buf[0] & VFC_SAA9051_CD)
status = NTSC_COLOR;
else
status = NTSC_NOCOLOR;
} else {
if(buf[0] & VFC_SAA9051_CD)
status = PAL_COLOR;
else
status = PAL_NOCOLOR;
}
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCGVID) returning status 0x%x; "
"buf[0]=%x\n", dev->instance, status, buf[0]));
if (copy_to_user((void __user *)arg,&status,sizeof(unsigned int))) {
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer to "
"vfc_get_video_ioctl\n",
dev->instance));
return ret;
}
return ret;
}
static int vfc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
int ret = 0;
unsigned int tmp;
struct vfc_dev *dev;
void __user *argp = (void __user *)arg;
dev = vfc_get_dev_ptr(iminor(inode));
if(dev == NULL)
return -ENODEV;
switch(cmd & 0x0000ffff) {
case VFCGCTRL:
#if 0
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCGCTRL)\n", dev->instance));
#endif
tmp = sbus_readl(&dev->regs->control);
if(copy_to_user(argp, &tmp, sizeof(unsigned int))) {
ret = -EFAULT;
break;
}
ret = 0;
break;
case VFCSCTRL:
ret = vfc_set_control_ioctl(inode, file, dev, arg);
break;
case VFCGVID:
ret = vfc_get_video_ioctl(inode, file, dev, arg);
break;
case VFCSVID:
ret = vfc_set_video_ioctl(inode, file, dev, arg);
break;
case VFCHUE:
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCHUE)\n", dev->instance));
if(copy_from_user(&tmp,argp,sizeof(unsigned int))) {
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: User passed bogus pointer "
"to IOCTL(VFCHUE)", dev->instance));
ret = -EFAULT;
} else {
VFC_SAA9051_SA(dev,VFC_SAA9051_HUE) = tmp;
vfc_update_saa9051(dev);
ret = 0;
}
break;
case VFCPORTCHG:
ret = vfc_port_change_ioctl(inode, file, dev, arg);
break;
case VFCRDINFO:
ret = -EINVAL;
VFC_IOCTL_DEBUG_PRINTK(("vfc%d: IOCTL(VFCRDINFO)\n", dev->instance));
break;
default:
ret = vfc_debug(vfc_get_dev_ptr(iminor(inode)), cmd, argp);
break;
};
return ret;
}
static int vfc_mmap(struct file *file, struct vm_area_struct *vma)
{
unsigned int map_size, ret, map_offset;
struct vfc_dev *dev;
dev = vfc_get_dev_ptr(iminor(file->f_path.dentry->d_inode));
if(dev == NULL)
return -ENODEV;
map_size = vma->vm_end - vma->vm_start;
if(map_size > sizeof(struct vfc_regs))
map_size = sizeof(struct vfc_regs);
vma->vm_flags |=
(VM_MAYREAD | VM_MAYWRITE | VM_MAYSHARE);
map_offset = (unsigned int) (long)dev->phys_regs;
ret = io_remap_pfn_range(vma, vma->vm_start,
MK_IOSPACE_PFN(dev->which_io,
map_offset >> PAGE_SHIFT),
map_size, vma->vm_page_prot);
if(ret)
return -EAGAIN;
return 0;
}
static const struct file_operations vfc_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = vfc_ioctl,
.mmap = vfc_mmap,
.open = vfc_open,
.release = vfc_release,
};
static int vfc_probe(void)
{
struct sbus_bus *sbus;
struct sbus_dev *sdev = NULL;
int ret;
int instance = 0, cards = 0;
for_all_sbusdev(sdev, sbus) {
if (strcmp(sdev->prom_name, "vfc") == 0) {
cards++;
continue;
}
}
if (!cards)
return -ENODEV;
vfc_dev_lst = kcalloc(cards + 1, sizeof(struct vfc_dev*), GFP_KERNEL);
if (vfc_dev_lst == NULL)
return -ENOMEM;
vfc_dev_lst[cards] = NULL;
ret = register_chrdev(VFC_MAJOR, vfcstr, &vfc_fops);
if(ret) {
printk(KERN_ERR "Unable to get major number %d\n", VFC_MAJOR);
kfree(vfc_dev_lst);
return -EIO;
}
instance = 0;
for_all_sbusdev(sdev, sbus) {
if (strcmp(sdev->prom_name, "vfc") == 0) {
vfc_dev_lst[instance]=(struct vfc_dev *)
kmalloc(sizeof(struct vfc_dev), GFP_KERNEL);
if (vfc_dev_lst[instance] == NULL)
return -ENOMEM;
ret = init_vfc_device(sdev,
vfc_dev_lst[instance],
instance);
if(ret) {
printk(KERN_ERR "Unable to initialize"
" vfc%d device\n",
instance);
} else {
}
instance++;
continue;
}
}
return 0;
}
#ifdef MODULE
int init_module(void)
#else
int vfc_init(void)
#endif
{
return vfc_probe();
}
#ifdef MODULE
static void deinit_vfc_device(struct vfc_dev *dev)
{
if(dev == NULL)
return;
sbus_iounmap(dev->regs, sizeof(struct vfc_regs));
kfree(dev);
}
void cleanup_module(void)
{
struct vfc_dev **devp;
unregister_chrdev(VFC_MAJOR,vfcstr);
for (devp = vfc_dev_lst; *devp; devp++)
deinit_vfc_device(*devp);
kfree(vfc_dev_lst);
return;
}
#endif
MODULE_LICENSE("GPL");

335
drivers/sbus/char/vfc_i2c.c
View File

@ -1,335 +0,0 @@
/*
* drivers/sbus/char/vfc_i2c.c
*
* Driver for the Videopix Frame Grabber.
*
* Functions that support the Phillips i2c(I squared C) bus on the vfc
* Documentation for the Phillips I2C bus can be found on the
* phillips home page
*
* Copyright (C) 1996 Manish Vachharajani (mvachhar@noc.rutgers.edu)
*
*/
/* NOTE: It seems to me that the documentation regarding the
pcd8584t/pcf8584 does not show the correct way to address the i2c bus.
Based on the information on the I2C bus itself and the remainder of
the Phillips docs the following algorithms appear to be correct. I am
fairly certain that the flowcharts in the phillips docs are wrong. */
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/delay.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/sbus.h>
#if 0
#define VFC_I2C_DEBUG
#endif
#include "vfc.h"
#include "vfc_i2c.h"
#define WRITE_S1(__val) \
sbus_writel(__val, &dev->regs->i2c_s1)
#define WRITE_REG(__val) \
sbus_writel(__val, &dev->regs->i2c_reg)
#define VFC_I2C_READ (0x1)
#define VFC_I2C_WRITE (0x0)
/******
The i2c bus controller chip on the VFC is a pcd8584t, but
phillips claims it doesn't exist. As far as I can tell it is
identical to the PCF8584 so I treat it like it is the pcf8584.
NOTE: The pcf8584 only cares
about the msb of the word you feed it
*****/
int vfc_pcf8584_init(struct vfc_dev *dev)
{
/* This will also choose register S0_OWN so we can set it. */
WRITE_S1(RESET);
/* The pcf8584 shifts this value left one bit and uses
* it as its i2c bus address.
*/
WRITE_REG(0x55000000);
/* This will set the i2c bus at the same speed sun uses,
* and set another magic bit.
*/
WRITE_S1(SELECT(S2));
WRITE_REG(0x14000000);
/* Enable the serial port, idle the i2c bus and set
* the data reg to s0.
*/
WRITE_S1(CLEAR_I2C_BUS);
udelay(100);
return 0;
}
void vfc_i2c_delay_no_busy(struct vfc_dev *dev, unsigned long usecs)
{
schedule_timeout_uninterruptible(usecs_to_jiffies(usecs));
}
void inline vfc_i2c_delay(struct vfc_dev *dev)
{
vfc_i2c_delay_no_busy(dev, 100);
}
int vfc_init_i2c_bus(struct vfc_dev *dev)
{
WRITE_S1(ENABLE_SERIAL | SELECT(S0) | ACK);
vfc_i2c_reset_bus(dev);
return 0;
}
int vfc_i2c_reset_bus(struct vfc_dev *dev)
{
VFC_I2C_DEBUG_PRINTK((KERN_DEBUG "vfc%d: Resetting the i2c bus\n",
dev->instance));
if(dev == NULL)
return -EINVAL;
if(dev->regs == NULL)
return -EINVAL;
WRITE_S1(SEND_I2C_STOP);
WRITE_S1(SEND_I2C_STOP | ACK);
vfc_i2c_delay(dev);
WRITE_S1(CLEAR_I2C_BUS);
VFC_I2C_DEBUG_PRINTK((KERN_DEBUG "vfc%d: I2C status %x\n",
dev->instance,
sbus_readl(&dev->regs->i2c_s1)));
return 0;
}
static int vfc_i2c_wait_for_bus(struct vfc_dev *dev)
{
int timeout = 1000;
while(!(sbus_readl(&dev->regs->i2c_s1) & BB)) {
if(!(timeout--))
return -ETIMEDOUT;
vfc_i2c_delay(dev);
}
return 0;
}
static int vfc_i2c_wait_for_pin(struct vfc_dev *dev, int ack)
{
int timeout = 1000;
int s1;
while ((s1 = sbus_readl(&dev->regs->i2c_s1)) & PIN) {
if (!(timeout--))
return -ETIMEDOUT;
vfc_i2c_delay(dev);
}
if (ack == VFC_I2C_ACK_CHECK) {
if(s1 & LRB)
return -EIO;
}
return 0;
}
#define SHIFT(a) ((a) << 24)
static int vfc_i2c_xmit_addr(struct vfc_dev *dev, unsigned char addr,
char mode)
{
int ret, raddr;
#if 1
WRITE_S1(SEND_I2C_STOP | ACK);
WRITE_S1(SELECT(S0) | ENABLE_SERIAL);
vfc_i2c_delay(dev);
#endif
switch(mode) {
case VFC_I2C_READ:
raddr = SHIFT(((unsigned int)addr | 0x1));
WRITE_REG(raddr);
VFC_I2C_DEBUG_PRINTK(("vfc%d: receiving from i2c addr 0x%x\n",
dev->instance, addr | 0x1));
break;
case VFC_I2C_WRITE:
raddr = SHIFT((unsigned int)addr & ~0x1);
WRITE_REG(raddr);
VFC_I2C_DEBUG_PRINTK(("vfc%d: sending to i2c addr 0x%x\n",
dev->instance, addr & ~0x1));
break;
default:
return -EINVAL;
};
WRITE_S1(SEND_I2C_START);
vfc_i2c_delay(dev);
ret = vfc_i2c_wait_for_pin(dev,VFC_I2C_ACK_CHECK); /* We wait
for the
i2c send
to finish
here but
Sun
doesn't,
hmm */
if (ret) {
printk(KERN_ERR "vfc%d: VFC xmit addr timed out or no ack\n",
dev->instance);
return ret;
} else if (mode == VFC_I2C_READ) {
if ((ret = sbus_readl(&dev->regs->i2c_reg) & 0xff000000) != raddr) {
printk(KERN_WARNING
"vfc%d: returned slave address "
"mismatch(%x,%x)\n",
dev->instance, raddr, ret);
}
}
return 0;
}
static int vfc_i2c_xmit_byte(struct vfc_dev *dev,unsigned char *byte)
{
int ret;
u32 val = SHIFT((unsigned int)*byte);
WRITE_REG(val);
ret = vfc_i2c_wait_for_pin(dev, VFC_I2C_ACK_CHECK);
switch(ret) {
case -ETIMEDOUT:
printk(KERN_ERR "vfc%d: VFC xmit byte timed out or no ack\n",
dev->instance);
break;
case -EIO:
ret = XMIT_LAST_BYTE;
break;
default:
break;
};
return ret;
}
static int vfc_i2c_recv_byte(struct vfc_dev *dev, unsigned char *byte,
int last)
{
int ret;
if (last) {
WRITE_REG(NEGATIVE_ACK);
VFC_I2C_DEBUG_PRINTK(("vfc%d: sending negative ack\n",
dev->instance));
} else {
WRITE_S1(ACK);
}
ret = vfc_i2c_wait_for_pin(dev, VFC_I2C_NO_ACK_CHECK);
if(ret) {
printk(KERN_ERR "vfc%d: "
"VFC recv byte timed out\n",
dev->instance);
}
*byte = (sbus_readl(&dev->regs->i2c_reg)) >> 24;
return ret;
}
int vfc_i2c_recvbuf(struct vfc_dev *dev, unsigned char addr,
char *buf, int count)
{
int ret, last;
if(!(count && buf && dev && dev->regs) )
return -EINVAL;
if ((ret = vfc_i2c_wait_for_bus(dev))) {
printk(KERN_ERR "vfc%d: VFC I2C bus busy\n", dev->instance);
return ret;
}
if ((ret = vfc_i2c_xmit_addr(dev, addr, VFC_I2C_READ))) {
WRITE_S1(SEND_I2C_STOP);
vfc_i2c_delay(dev);
return ret;
}
last = 0;
while (count--) {
if (!count)
last = 1;
if ((ret = vfc_i2c_recv_byte(dev, buf, last))) {
printk(KERN_ERR "vfc%d: "
"VFC error while receiving byte\n",
dev->instance);
WRITE_S1(SEND_I2C_STOP);
ret = -EINVAL;
}
buf++;
}
WRITE_S1(SEND_I2C_STOP | ACK);
vfc_i2c_delay(dev);
return ret;
}
int vfc_i2c_sendbuf(struct vfc_dev *dev, unsigned char addr,
char *buf, int count)
{
int ret;
if (!(buf && dev && dev->regs))
return -EINVAL;
if ((ret = vfc_i2c_wait_for_bus(dev))) {
printk(KERN_ERR "vfc%d: VFC I2C bus busy\n", dev->instance);
return ret;
}
if ((ret = vfc_i2c_xmit_addr(dev, addr, VFC_I2C_WRITE))) {
WRITE_S1(SEND_I2C_STOP);
vfc_i2c_delay(dev);
return ret;
}
while(count--) {
ret = vfc_i2c_xmit_byte(dev, buf);
switch(ret) {
case XMIT_LAST_BYTE:
VFC_I2C_DEBUG_PRINTK(("vfc%d: "
"Receiver ended transmission with "
" %d bytes remaining\n",
dev->instance, count));
ret = 0;
goto done;
break;
case 0:
break;
default:
printk(KERN_ERR "vfc%d: "
"VFC error while sending byte\n", dev->instance);
break;
};
buf++;
}
done:
WRITE_S1(SEND_I2C_STOP | ACK);
vfc_i2c_delay(dev);
return ret;
}

44
drivers/sbus/char/vfc_i2c.h
View File

@ -1,44 +0,0 @@
#ifndef _LINUX_VFC_I2C_H_
#define _LINUX_VFC_I2C_H_
/* control bits */
#define PIN (0x80000000)
#define ESO (0x40000000)
#define ES1 (0x20000000)
#define ES2 (0x10000000)
#define ENI (0x08000000)
#define STA (0x04000000)
#define STO (0x02000000)
#define ACK (0x01000000)
/* status bits */
#define STS (0x20000000)
#define BER (0x10000000)
#define LRB (0x08000000)
#define AAS (0x04000000)
#define LAB (0x02000000)
#define BB (0x01000000)
#define SEND_I2C_START (PIN | ESO | STA)
#define SEND_I2C_STOP (PIN | ESO | STO)
#define CLEAR_I2C_BUS (PIN | ESO | ACK)
#define NEGATIVE_ACK ((ESO) & ~ACK)
#define SELECT(a) (a)
#define S0 (PIN | ESO | ES1)
#define S0_OWN (PIN)
#define S2 (PIN | ES1)
#define S3 (PIN | ES2)
#define ENABLE_SERIAL (PIN | ESO)
#define DISABLE_SERIAL (PIN)
#define RESET (PIN)
#define XMIT_LAST_BYTE (1)
#define VFC_I2C_ACK_CHECK (1)
#define VFC_I2C_NO_ACK_CHECK (0)
#endif /* _LINUX_VFC_I2C_H_ */