Abylay Ospan | c253a17 | 2009-03-03 10:55:38 -0300 | [diff] [blame] | 1 | /* |
| 2 | * netup-init.c |
| 3 | * |
| 4 | * NetUP Dual DVB-S2 CI driver |
| 5 | * |
| 6 | * Copyright (C) 2009 NetUP Inc. |
| 7 | * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru> |
| 8 | * Copyright (C) 2009 Abylay Ospan <aospan@netup.ru> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 24 | */ |
| 25 | |
| 26 | #include "cx23885.h" |
| 27 | |
| 28 | static void i2c_av_write(struct i2c_adapter *i2c, u16 reg, u8 val) |
| 29 | { |
| 30 | int ret; |
| 31 | u8 buf[3]; |
| 32 | struct i2c_msg msg = { |
| 33 | .addr = 0x88 >> 1, |
| 34 | .flags = 0, |
| 35 | .buf = buf, |
| 36 | .len = 3 |
| 37 | }; |
| 38 | |
| 39 | buf[0] = reg >> 8; |
| 40 | buf[1] = reg & 0xff; |
| 41 | buf[2] = val; |
| 42 | |
| 43 | ret = i2c_transfer(i2c, &msg, 1); |
| 44 | |
| 45 | if (ret != 1) |
| 46 | printk(KERN_ERR "%s: i2c write error!\n", __func__); |
| 47 | } |
| 48 | |
| 49 | static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val) |
| 50 | { |
| 51 | int ret; |
| 52 | u8 buf[6]; |
| 53 | struct i2c_msg msg = { |
| 54 | .addr = 0x88 >> 1, |
| 55 | .flags = 0, |
| 56 | .buf = buf, |
| 57 | .len = 6 |
| 58 | }; |
| 59 | |
| 60 | buf[0] = reg >> 8; |
| 61 | buf[1] = reg & 0xff; |
| 62 | buf[2] = val & 0xff; |
| 63 | buf[3] = (val >> 8) & 0xff; |
| 64 | buf[4] = (val >> 16) & 0xff; |
| 65 | buf[5] = val >> 24; |
| 66 | |
| 67 | ret = i2c_transfer(i2c, &msg, 1); |
| 68 | |
| 69 | if (ret != 1) |
| 70 | printk(KERN_ERR "%s: i2c write error!\n", __func__); |
| 71 | } |
| 72 | |
| 73 | static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg) |
| 74 | { |
| 75 | int ret; |
| 76 | u8 buf[2]; |
| 77 | struct i2c_msg msg = { |
| 78 | .addr = 0x88 >> 1, |
| 79 | .flags = 0, |
| 80 | .buf = buf, |
| 81 | .len = 2 |
| 82 | }; |
| 83 | |
| 84 | buf[0] = reg >> 8; |
| 85 | buf[1] = reg & 0xff; |
| 86 | |
| 87 | ret = i2c_transfer(i2c, &msg, 1); |
| 88 | |
| 89 | if (ret != 1) |
| 90 | printk(KERN_ERR "%s: i2c write error!\n", __func__); |
| 91 | |
| 92 | msg.flags = I2C_M_RD; |
| 93 | msg.len = 1; |
| 94 | |
| 95 | ret = i2c_transfer(i2c, &msg, 1); |
| 96 | |
| 97 | if (ret != 1) |
| 98 | printk(KERN_ERR "%s: i2c read error!\n", __func__); |
| 99 | |
| 100 | return buf[0]; |
| 101 | } |
| 102 | |
| 103 | static void i2c_av_and_or(struct i2c_adapter *i2c, u16 reg, unsigned and_mask, |
| 104 | u8 or_value) |
| 105 | { |
| 106 | i2c_av_write(i2c, reg, (i2c_av_read(i2c, reg) & and_mask) | or_value); |
| 107 | } |
| 108 | /* set 27MHz on AUX_CLK */ |
| 109 | void netup_initialize(struct cx23885_dev *dev) |
| 110 | { |
| 111 | struct cx23885_i2c *i2c_bus = &dev->i2c_bus[2]; |
| 112 | struct i2c_adapter *i2c = &i2c_bus->i2c_adap; |
| 113 | |
| 114 | /* Stop microcontroller */ |
| 115 | i2c_av_and_or(i2c, 0x803, ~0x10, 0x00); |
| 116 | |
| 117 | /* Aux PLL frac for 27 MHz */ |
| 118 | i2c_av_write4(i2c, 0x114, 0xea0eb3); |
| 119 | |
| 120 | /* Aux PLL int for 27 MHz */ |
| 121 | i2c_av_write4(i2c, 0x110, 0x090319); |
| 122 | |
| 123 | /* start microcontroller */ |
| 124 | i2c_av_and_or(i2c, 0x803, ~0x10, 0x10); |
| 125 | } |