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V4L/DVB (9940): bt832: remove this driver

The bt832 i2c driver was never used or even compiled and is no longer
maintained. It is now removed completely.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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1 parent 49dd131 commit 77587c5627aab50636ea0f93c28d2013cd0b7004 @hverkuil hverkuil committed with Mauro Carvalho Chehab Dec 19, 2008
@@ -1,274 +0,0 @@
-/* Driver for Bt832 CMOS Camera Video Processor
- i2c-addresses: 0x88 or 0x8a
-
- The BT832 interfaces to a Quartzsight Digital Camera (352x288, 25 or 30 fps)
- via a 9 pin connector ( 4-wire SDATA, 2-wire i2c, SCLK, VCC, GND).
- It outputs an 8-bit 4:2:2 YUV or YCrCb video signal which can be directly
- connected to bt848/bt878 GPIO pins on this purpose.
- (see: VLSI Vision Ltd. www.vvl.co.uk for camera datasheets)
-
- Supported Cards:
- - Pixelview Rev.4E: 0x8a
- GPIO 0x400000 toggles Bt832 RESET, and the chip changes to i2c 0x88 !
-
- (c) Gunther Mayer, 2002
-
- STATUS:
- - detect chip and hexdump
- - reset chip and leave low power mode
- - detect camera present
-
- TODO:
- - make it work (find correct setup for Bt832 and Bt878)
-*/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/types.h>
-#include <linux/videodev.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <media/v4l2-common.h>
-
-#include "bttv.h"
-#include "bt832.h"
-
-MODULE_LICENSE("GPL");
-
-/* Addresses to scan */
-static unsigned short normal_i2c[] = { I2C_ADDR_BT832_ALT1>>1, I2C_ADDR_BT832_ALT2>>1,
- I2C_CLIENT_END };
-I2C_CLIENT_INSMOD;
-
-int debug; /* debug output */
-module_param(debug, int, 0644);
-
-/* ---------------------------------------------------------------------- */
-
-static int bt832_detach(struct i2c_client *client);
-
-
-static struct i2c_driver driver;
-static struct i2c_client client_template;
-
-struct bt832 {
- struct i2c_client client;
-};
-
-int bt832_hexdump(struct i2c_client *i2c_client_s, unsigned char *buf)
-{
- int i,rc;
- buf[0]=0x80; // start at register 0 with auto-increment
- if (1 != (rc = i2c_master_send(i2c_client_s,buf,1)))
- v4l_err(i2c_client_s,"i2c i/o error: rc == %d (should be 1)\n",rc);
-
- for(i=0;i<65;i++)
- buf[i]=0;
- if (65 != (rc=i2c_master_recv(i2c_client_s,buf,65)))
- v4l_err(i2c_client_s,"i2c i/o error: rc == %d (should be 65)\n",rc);
-
- // Note: On READ the first byte is the current index
- // (e.g. 0x80, what we just wrote)
-
- if(debug>1) {
- int i;
- v4l_dbg(2, debug,i2c_client_s,"hexdump:");
- for(i=1;i<65;i++) {
- if(i!=1) {
- if(((i-1)%8)==0) printk(" ");
- if(((i-1)%16)==0) {
- printk("\n");
- v4l_dbg(2, debug,i2c_client_s,"hexdump:");
- }
- }
- printk(" %02x",buf[i]);
- }
- printk("\n");
- }
- return 0;
-}
-
-// Return: 1 (is a bt832), 0 (No bt832 here)
-int bt832_init(struct i2c_client *i2c_client_s)
-{
- unsigned char *buf;
- int rc;
-
- buf=kmalloc(65,GFP_KERNEL);
- if (!buf) {
- v4l_err(&t->client,
- "Unable to allocate memory. Detaching.\n");
- return 0;
- }
- bt832_hexdump(i2c_client_s,buf);
-
- if(buf[0x40] != 0x31) {
- v4l_err(i2c_client_s,"This i2c chip is no bt832 (id=%02x). Detaching.\n",buf[0x40]);
- kfree(buf);
- return 0;
- }
-
- v4l_err(i2c_client_s,"Write 0 tp VPSTATUS\n");
- buf[0]=BT832_VP_STATUS; // Reg.52
- buf[1]= 0x00;
- if (2 != (rc = i2c_master_send(i2c_client_s,buf,2)))
- v4l_err(i2c_client_s,"i2c i/o error VPS: rc == %d (should be 2)\n",rc);
-
- bt832_hexdump(i2c_client_s,buf);
-
-
- // Leave low power mode:
- v4l_err(i2c_client_s,"leave low power mode.\n");
- buf[0]=BT832_CAM_SETUP0; //0x39 57
- buf[1]=0x08;
- if (2 != (rc = i2c_master_send(i2c_client_s,buf,2)))
- v4l_err(i2c_client_s,"i2c i/o error LLPM: rc == %d (should be 2)\n",rc);
-
- bt832_hexdump(i2c_client_s,buf);
-
- v4l_info(i2c_client_s,"Write 0 tp VPSTATUS\n");
- buf[0]=BT832_VP_STATUS; // Reg.52
- buf[1]= 0x00;
- if (2 != (rc = i2c_master_send(i2c_client_s,buf,2)))
- v4l_err(i2c_client_s,"i2c i/o error VPS: rc == %d (should be 2)\n",rc);
-
- bt832_hexdump(i2c_client_s,buf);
-
-
- // Enable Output
- v4l_info(i2c_client_s,"Enable Output\n");
- buf[0]=BT832_VP_CONTROL1; // Reg.40
- buf[1]= 0x27 & (~0x01); // Default | !skip
- if (2 != (rc = i2c_master_send(i2c_client_s,buf,2)))
- v4l_err(i2c_client_s,"i2c i/o error EO: rc == %d (should be 2)\n",rc);
-
- bt832_hexdump(i2c_client_s,buf);
-
-
- // for testing (even works when no camera attached)
- v4l_info(i2c_client_s,"*** Generate NTSC M Bars *****\n");
- buf[0]=BT832_VP_TESTCONTROL0; // Reg. 42
- buf[1]=3; // Generate NTSC System M bars, Generate Frame timing internally
- if (2 != (rc = i2c_master_send(i2c_client_s,buf,2)))
- v4l_info(i2c_client_s,"i2c i/o error MBAR: rc == %d (should be 2)\n",rc);
-
- v4l_info(i2c_client_s,"Camera Present: %s\n",
- (buf[1+BT832_CAM_STATUS] & BT832_56_CAMERA_PRESENT) ? "yes":"no");
-
- bt832_hexdump(i2c_client_s,buf);
- kfree(buf);
- return 1;
-}
-
-
-
-static int bt832_attach(struct i2c_adapter *adap, int addr, int kind)
-{
- struct bt832 *t;
-
- client_template.adapter = adap;
- client_template.addr = addr;
-
- if (NULL == (t = kzalloc(sizeof(*t), GFP_KERNEL)))
- return -ENOMEM;
- t->client = client_template;
- i2c_set_clientdata(&t->client, t);
- i2c_attach_client(&t->client);
-
- v4l_info(&t->client,"chip found @ 0x%x\n", addr<<1);
-
- if(! bt832_init(&t->client)) {
- bt832_detach(&t->client);
- return -1;
- }
-
- return 0;
-}
-
-static int bt832_probe(struct i2c_adapter *adap)
-{
- if (adap->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adap, &addr_data, bt832_attach);
- return 0;
-}
-
-static int bt832_detach(struct i2c_client *client)
-{
- struct bt832 *t = i2c_get_clientdata(client);
-
- v4l_info(&t->client,"dettach\n");
- i2c_detach_client(client);
- kfree(t);
- return 0;
-}
-
-static int
-bt832_command(struct i2c_client *client, unsigned int cmd, void *arg)
-{
- struct bt832 *t = i2c_get_clientdata(client);
-
- if (debug>1)
- v4l_i2c_print_ioctl(&t->client,cmd);
-
- switch (cmd) {
- case BT832_HEXDUMP: {
- unsigned char *buf;
- buf = kmalloc(65, GFP_KERNEL);
- if (!buf) {
- v4l_err(&t->client,
- "Unable to allocate memory\n");
- break;
- }
- bt832_hexdump(&t->client,buf);
- kfree(buf);
- }
- break;
- case BT832_REATTACH:
- v4l_info(&t->client,"re-attach\n");
- i2c_del_driver(&driver);
- i2c_add_driver(&driver);
- break;
- }
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static struct i2c_driver driver = {
- .driver = {
- .name = "bt832",
- },
- .id = 0, /* FIXME */
- .attach_adapter = bt832_probe,
- .detach_client = bt832_detach,
- .command = bt832_command,
-};
-static struct i2c_client client_template =
-{
- .name = "bt832",
- .driver = &driver,
-};
-
-
-static int __init bt832_init_module(void)
-{
- return i2c_add_driver(&driver);
-}
-
-static void __exit bt832_cleanup_module(void)
-{
- i2c_del_driver(&driver);
-}
-
-module_init(bt832_init_module);
-module_exit(bt832_cleanup_module);
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
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