123 lines
2.6 KiB
C
123 lines
2.6 KiB
C
/*
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* netup-init.c
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*
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* NetUP Dual DVB-S2 CI driver
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*
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* Copyright (C) 2009 NetUP Inc.
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* Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
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* Copyright (C) 2009 Abylay Ospan <aospan@netup.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*/
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#include "cx23885.h"
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#include "netup-init.h"
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static void i2c_av_write(struct i2c_adapter *i2c, u16 reg, u8 val)
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{
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int ret;
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u8 buf[3];
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struct i2c_msg msg = {
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.addr = 0x88 >> 1,
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.flags = 0,
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.buf = buf,
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.len = 3
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};
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buf[0] = reg >> 8;
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buf[1] = reg & 0xff;
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buf[2] = val;
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ret = i2c_transfer(i2c, &msg, 1);
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if (ret != 1)
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pr_err("%s: i2c write error!\n", __func__);
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}
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static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val)
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{
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int ret;
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u8 buf[6];
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struct i2c_msg msg = {
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.addr = 0x88 >> 1,
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.flags = 0,
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.buf = buf,
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.len = 6
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};
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buf[0] = reg >> 8;
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buf[1] = reg & 0xff;
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buf[2] = val & 0xff;
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buf[3] = (val >> 8) & 0xff;
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buf[4] = (val >> 16) & 0xff;
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buf[5] = val >> 24;
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ret = i2c_transfer(i2c, &msg, 1);
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if (ret != 1)
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pr_err("%s: i2c write error!\n", __func__);
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}
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static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg)
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{
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int ret;
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u8 buf[2];
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struct i2c_msg msg = {
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.addr = 0x88 >> 1,
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.flags = 0,
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.buf = buf,
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.len = 2
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};
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buf[0] = reg >> 8;
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buf[1] = reg & 0xff;
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ret = i2c_transfer(i2c, &msg, 1);
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if (ret != 1)
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pr_err("%s: i2c write error!\n", __func__);
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msg.flags = I2C_M_RD;
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msg.len = 1;
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ret = i2c_transfer(i2c, &msg, 1);
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if (ret != 1)
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pr_err("%s: i2c read error!\n", __func__);
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return buf[0];
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}
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static void i2c_av_and_or(struct i2c_adapter *i2c, u16 reg, unsigned and_mask,
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u8 or_value)
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{
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i2c_av_write(i2c, reg, (i2c_av_read(i2c, reg) & and_mask) | or_value);
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}
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/* set 27MHz on AUX_CLK */
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void netup_initialize(struct cx23885_dev *dev)
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{
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struct cx23885_i2c *i2c_bus = &dev->i2c_bus[2];
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struct i2c_adapter *i2c = &i2c_bus->i2c_adap;
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/* Stop microcontroller */
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i2c_av_and_or(i2c, 0x803, ~0x10, 0x00);
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/* Aux PLL frac for 27 MHz */
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i2c_av_write4(i2c, 0x114, 0xea0eb3);
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/* Aux PLL int for 27 MHz */
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i2c_av_write4(i2c, 0x110, 0x090319);
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/* start microcontroller */
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i2c_av_and_or(i2c, 0x803, ~0x10, 0x10);
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}
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