From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/media/pci/cx23885/netup-eeprom.c | 103 ++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 kernel/drivers/media/pci/cx23885/netup-eeprom.c (limited to 'kernel/drivers/media/pci/cx23885/netup-eeprom.c') diff --git a/kernel/drivers/media/pci/cx23885/netup-eeprom.c b/kernel/drivers/media/pci/cx23885/netup-eeprom.c new file mode 100644 index 000000000..b6542ee43 --- /dev/null +++ b/kernel/drivers/media/pci/cx23885/netup-eeprom.c @@ -0,0 +1,103 @@ + +/* + * netup-eeprom.c + * + * 24LC02 EEPROM driver in conjunction with NetUP Dual DVB-S2 CI card + * + * Copyright (C) 2009 NetUP Inc. + * Copyright (C) 2009 Abylay Ospan + * + * 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. + */ + +# +#include "cx23885.h" +#include "netup-eeprom.h" + +#define EEPROM_I2C_ADDR 0x50 + +int netup_eeprom_read(struct i2c_adapter *i2c_adap, u8 addr) +{ + int ret; + unsigned char buf[2]; + + /* Read from EEPROM */ + struct i2c_msg msg[] = { + { + .addr = EEPROM_I2C_ADDR, + .flags = 0, + .buf = &buf[0], + .len = 1 + }, { + .addr = EEPROM_I2C_ADDR, + .flags = I2C_M_RD, + .buf = &buf[1], + .len = 1 + } + + }; + + buf[0] = addr; + buf[1] = 0x0; + + ret = i2c_transfer(i2c_adap, msg, 2); + + if (ret != 2) { + printk(KERN_ERR "eeprom i2c read error, status=%d\n", ret); + return -1; + } + + return buf[1]; +}; + +int netup_eeprom_write(struct i2c_adapter *i2c_adap, u8 addr, u8 data) +{ + int ret; + unsigned char bufw[2]; + + /* Write into EEPROM */ + struct i2c_msg msg[] = { + { + .addr = EEPROM_I2C_ADDR, + .flags = 0, + .buf = &bufw[0], + .len = 2 + } + }; + + bufw[0] = addr; + bufw[1] = data; + + ret = i2c_transfer(i2c_adap, msg, 1); + + if (ret != 1) { + printk(KERN_ERR "eeprom i2c write error, status=%d\n", ret); + return -1; + } + + mdelay(10); /* prophylactic delay, datasheet write cycle time = 5 ms */ + return 0; +}; + +void netup_get_card_info(struct i2c_adapter *i2c_adap, + struct netup_card_info *cinfo) +{ + int i, j; + + cinfo->rev = netup_eeprom_read(i2c_adap, 63); + + for (i = 64, j = 0; i < 70; i++, j++) + cinfo->port[0].mac[j] = netup_eeprom_read(i2c_adap, i); + + for (i = 70, j = 0; i < 76; i++, j++) + cinfo->port[1].mac[j] = netup_eeprom_read(i2c_adap, i); +}; -- cgit 1.2.3-korg