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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-06-14 16:35:57 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-13 23:30:06 -0300 |
commit | 25aee3debe0464f6c680173041fa3de30ec9ff54 (patch) | |
tree | e2b14f952a0831399f9cbb444cfb9c7980b6485b /drivers/media/dvb/ttpci/ttpci-eeprom.c | |
parent | 786baecfe78f8e25547c628b48a60fc8e5636056 (diff) | |
download | blackbird-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.c | 176 |
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"); |