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path: root/drivers/media/dvb/b2c2/flexcop-eeprom.c
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Diffstat (limited to 'drivers/media/dvb/b2c2/flexcop-eeprom.c')
-rw-r--r--drivers/media/dvb/b2c2/flexcop-eeprom.c147
1 files changed, 0 insertions, 147 deletions
diff --git a/drivers/media/dvb/b2c2/flexcop-eeprom.c b/drivers/media/dvb/b2c2/flexcop-eeprom.c
deleted file mode 100644
index a25373a9bd84..000000000000
--- a/drivers/media/dvb/b2c2/flexcop-eeprom.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
- * flexcop-eeprom.c - eeprom access methods (currently only MAC address reading)
- * see flexcop.c for copyright information
- */
-#include "flexcop.h"
-
-#if 0
-/*EEPROM (Skystar2 has one "24LC08B" chip on board) */
-static int eeprom_write(struct adapter *adapter, u16 addr, u8 *buf, u16 len)
-{
- return flex_i2c_write(adapter, 0x20000000, 0x50, addr, buf, len);
-}
-
-static int eeprom_lrc_write(struct adapter *adapter, u32 addr,
- u32 len, u8 *wbuf, u8 *rbuf, int retries)
-{
-int i;
-
-for (i = 0; i < retries; i++) {
- if (eeprom_write(adapter, addr, wbuf, len) == len) {
- if (eeprom_lrc_read(adapter, addr, len, rbuf, retries) == 1)
- return 1;
- }
- }
- return 0;
-}
-
-/* These functions could be used to unlock SkyStar2 cards. */
-
-static int eeprom_writeKey(struct adapter *adapter, u8 *key, u32 len)
-{
- u8 rbuf[20];
- u8 wbuf[20];
-
- if (len != 16)
- return 0;
-
- memcpy(wbuf, key, len);
- wbuf[16] = 0;
- wbuf[17] = 0;
- wbuf[18] = 0;
- wbuf[19] = calc_lrc(wbuf, 19);
- return eeprom_lrc_write(adapter, 0x3e4, 20, wbuf, rbuf, 4);
-}
-
-static int eeprom_readKey(struct adapter *adapter, u8 *key, u32 len)
-{
- u8 buf[20];
-
- if (len != 16)
- return 0;
-
- if (eeprom_lrc_read(adapter, 0x3e4, 20, buf, 4) == 0)
- return 0;
-
- memcpy(key, buf, len);
- return 1;
-}
-
-static char eeprom_set_mac_addr(struct adapter *adapter, char type, u8 *mac)
-{
- u8 tmp[8];
-
- if (type != 0) {
- tmp[0] = mac[0];
- tmp[1] = mac[1];
- tmp[2] = mac[2];
- tmp[3] = mac[5];
- tmp[4] = mac[6];
- tmp[5] = mac[7];
- } else {
- tmp[0] = mac[0];
- tmp[1] = mac[1];
- tmp[2] = mac[2];
- tmp[3] = mac[3];
- tmp[4] = mac[4];
- tmp[5] = mac[5];
- }
-
- tmp[6] = 0;
- tmp[7] = calc_lrc(tmp, 7);
-
- if (eeprom_write(adapter, 0x3f8, tmp, 8) == 8)
- return 1;
- return 0;
-}
-
-static int flexcop_eeprom_read(struct flexcop_device *fc,
- u16 addr, u8 *buf, u16 len)
-{
- return fc->i2c_request(fc,FC_READ,FC_I2C_PORT_EEPROM,0x50,addr,buf,len);
-}
-
-#endif
-
-static u8 calc_lrc(u8 *buf, int len)
-{
- int i;
- u8 sum = 0;
- for (i = 0; i < len; i++)
- sum = sum ^ buf[i];
- return sum;
-}
-
-static int flexcop_eeprom_request(struct flexcop_device *fc,
- flexcop_access_op_t op, u16 addr, u8 *buf, u16 len, int retries)
-{
- int i,ret = 0;
- u8 chipaddr = 0x50 | ((addr >> 8) & 3);
- for (i = 0; i < retries; i++) {
- ret = fc->i2c_request(&fc->fc_i2c_adap[1], op, chipaddr,
- addr & 0xff, buf, len);
- if (ret == 0)
- break;
- }
- return ret;
-}
-
-static int flexcop_eeprom_lrc_read(struct flexcop_device *fc, u16 addr,
- u8 *buf, u16 len, int retries)
-{
- int ret = flexcop_eeprom_request(fc, FC_READ, addr, buf, len, retries);
- if (ret == 0)
- if (calc_lrc(buf, len - 1) != buf[len - 1])
- ret = -EINVAL;
- return ret;
-}
-
-/* JJ's comment about extended == 1: it is not presently used anywhere but was
- * added to the low-level functions for possible support of EUI64 */
-int flexcop_eeprom_check_mac_addr(struct flexcop_device *fc, int extended)
-{
- u8 buf[8];
- int ret = 0;
-
- if ((ret = flexcop_eeprom_lrc_read(fc,0x3f8,buf,8,4)) == 0) {
- if (extended != 0) {
- err("TODO: extended (EUI64) MAC addresses aren't "
- "completely supported yet");
- ret = -EINVAL;
- } else
- memcpy(fc->dvb_adapter.proposed_mac,buf,6);
- }
- return ret;
-}
-EXPORT_SYMBOL(flexcop_eeprom_check_mac_addr);