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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-06-14 16:35:57 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-13 23:30:06 -0300
commit25aee3debe0464f6c680173041fa3de30ec9ff54 (patch)
treee2b14f952a0831399f9cbb444cfb9c7980b6485b /drivers/media/dvb/ttpci/ttpci-eeprom.c
parent786baecfe78f8e25547c628b48a60fc8e5636056 (diff)
downloadblackbird-op-linux-25aee3debe0464f6c680173041fa3de30ec9ff54.tar.gz
blackbird-op-linux-25aee3debe0464f6c680173041fa3de30ec9ff54.zip
[media] Rename media/dvb as media/pci
The remaining dvb drivers are pci, so rename them to match the bus. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/ttpci/ttpci-eeprom.c')
-rw-r--r--drivers/media/dvb/ttpci/ttpci-eeprom.c176
1 files changed, 0 insertions, 176 deletions
diff --git a/drivers/media/dvb/ttpci/ttpci-eeprom.c b/drivers/media/dvb/ttpci/ttpci-eeprom.c
deleted file mode 100644
index 32d43156c548..000000000000
--- a/drivers/media/dvb/ttpci/ttpci-eeprom.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- Retrieve encoded MAC address from 24C16 serial 2-wire EEPROM,
- decode it and store it in the associated adapter struct for
- use by dvb_net.c
-
- This card appear to have the 24C16 write protect held to ground,
- thus permitting normal read/write operation. Theoretically it
- would be possible to write routines to burn a different (encoded)
- MAC address into the EEPROM.
-
- Robert Schlabbach GMX
- Michael Glaum KVH Industries
- Holger Waechtler Convergence
-
- Copyright (C) 2002-2003 Ralph Metzler <rjkm@metzlerbros.de>
- Metzler Brothers Systementwicklung GbR
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-#include <asm/errno.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/i2c.h>
-
-#include "ttpci-eeprom.h"
-
-#if 1
-#define dprintk(x...) do { printk(x); } while (0)
-#else
-#define dprintk(x...) do { } while (0)
-#endif
-
-
-static int check_mac_tt(u8 *buf)
-{
- int i;
- u16 tmp = 0xffff;
-
- for (i = 0; i < 8; i++) {
- tmp = (tmp << 8) | ((tmp >> 8) ^ buf[i]);
- tmp ^= (tmp >> 4) & 0x0f;
- tmp ^= (tmp << 12) ^ ((tmp & 0xff) << 5);
- }
- tmp ^= 0xffff;
- return (((tmp >> 8) ^ buf[8]) | ((tmp & 0xff) ^ buf[9]));
-}
-
-static int getmac_tt(u8 * decodedMAC, u8 * encodedMAC)
-{
- u8 xor[20] = { 0x72, 0x23, 0x68, 0x19, 0x5c, 0xa8, 0x71, 0x2c,
- 0x54, 0xd3, 0x7b, 0xf1, 0x9E, 0x23, 0x16, 0xf6,
- 0x1d, 0x36, 0x64, 0x78};
- u8 data[20];
- int i;
-
- /* In case there is a sig check failure have the orig contents available */
- memcpy(data, encodedMAC, 20);
-
- for (i = 0; i < 20; i++)
- data[i] ^= xor[i];
- for (i = 0; i < 10; i++)
- data[i] = ((data[2 * i + 1] << 8) | data[2 * i])
- >> ((data[2 * i + 1] >> 6) & 3);
-
- if (check_mac_tt(data))
- return -ENODEV;
-
- decodedMAC[0] = data[2]; decodedMAC[1] = data[1]; decodedMAC[2] = data[0];
- decodedMAC[3] = data[6]; decodedMAC[4] = data[5]; decodedMAC[5] = data[4];
- return 0;
-}
-
-int ttpci_eeprom_decode_mac(u8 *decodedMAC, u8 *encodedMAC)
-{
- u8 xor[20] = { 0x72, 0x23, 0x68, 0x19, 0x5c, 0xa8, 0x71, 0x2c,
- 0x54, 0xd3, 0x7b, 0xf1, 0x9E, 0x23, 0x16, 0xf6,
- 0x1d, 0x36, 0x64, 0x78};
- u8 data[20];
- int i;
-
- memcpy(data, encodedMAC, 20);
-
- for (i = 0; i < 20; i++)
- data[i] ^= xor[i];
- for (i = 0; i < 10; i++)
- data[i] = ((data[2 * i + 1] << 8) | data[2 * i])
- >> ((data[2 * i + 1] >> 6) & 3);
-
- if (check_mac_tt(data))
- return -ENODEV;
-
- decodedMAC[0] = data[2];
- decodedMAC[1] = data[1];
- decodedMAC[2] = data[0];
- decodedMAC[3] = data[6];
- decodedMAC[4] = data[5];
- decodedMAC[5] = data[4];
- return 0;
-}
-EXPORT_SYMBOL(ttpci_eeprom_decode_mac);
-
-static int ttpci_eeprom_read_encodedMAC(struct i2c_adapter *adapter, u8 * encodedMAC)
-{
- int ret;
- u8 b0[] = { 0xcc };
-
- struct i2c_msg msg[] = {
- { .addr = 0x50, .flags = 0, .buf = b0, .len = 1 },
- { .addr = 0x50, .flags = I2C_M_RD, .buf = encodedMAC, .len = 20 }
- };
-
- /* dprintk("%s\n", __func__); */
-
- ret = i2c_transfer(adapter, msg, 2);
-
- if (ret != 2) /* Assume EEPROM isn't there */
- return (-ENODEV);
-
- return 0;
-}
-
-
-int ttpci_eeprom_parse_mac(struct i2c_adapter *adapter, u8 *proposed_mac)
-{
- int ret, i;
- u8 encodedMAC[20];
- u8 decodedMAC[6];
-
- ret = ttpci_eeprom_read_encodedMAC(adapter, encodedMAC);
-
- if (ret != 0) { /* Will only be -ENODEV */
- dprintk("Couldn't read from EEPROM: not there?\n");
- memset(proposed_mac, 0, 6);
- return ret;
- }
-
- ret = getmac_tt(decodedMAC, encodedMAC);
- if( ret != 0 ) {
- dprintk("adapter failed MAC signature check\n");
- dprintk("encoded MAC from EEPROM was " );
- for(i=0; i<19; i++) {
- dprintk( "%.2x:", encodedMAC[i]);
- }
- dprintk("%.2x\n", encodedMAC[19]);
- memset(proposed_mac, 0, 6);
- return ret;
- }
-
- memcpy(proposed_mac, decodedMAC, 6);
- dprintk("adapter has MAC addr = %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
- decodedMAC[0], decodedMAC[1], decodedMAC[2],
- decodedMAC[3], decodedMAC[4], decodedMAC[5]);
- return 0;
-}
-
-EXPORT_SYMBOL(ttpci_eeprom_parse_mac);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Ralph Metzler, Marcus Metzler, others");
-MODULE_DESCRIPTION("Decode dvb_net MAC address from EEPROM of PCI DVB cards "
- "made by Siemens, Technotrend, Hauppauge");
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