Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 1 | /* |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 2 | * lnbp21.c - driver for lnb supply and control ic lnbp21 |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 3 | * |
Oliver Endriss | 9efc1bd | 2009-12-13 08:58:38 -0300 | [diff] [blame] | 4 | * Copyright (C) 2006, 2009 Oliver Endriss <o.endriss@gmx.de> |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 5 | * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru> |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * as published by the Free Software Foundation; either version 2 |
| 10 | * of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html |
| 23 | * |
| 24 | * |
| 25 | * the project's page is at http://www.linuxtv.org |
| 26 | */ |
| 27 | #include <linux/delay.h> |
| 28 | #include <linux/errno.h> |
| 29 | #include <linux/init.h> |
| 30 | #include <linux/kernel.h> |
| 31 | #include <linux/module.h> |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 32 | #include <linux/string.h> |
| 33 | #include <linux/slab.h> |
| 34 | |
| 35 | #include "dvb_frontend.h" |
| 36 | #include "lnbp21.h" |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 37 | #include "lnbh24.h" |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 38 | |
| 39 | struct lnbp21 { |
| 40 | u8 config; |
| 41 | u8 override_or; |
| 42 | u8 override_and; |
| 43 | struct i2c_adapter *i2c; |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 44 | u8 i2c_addr; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 45 | }; |
| 46 | |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 47 | static int lnbp21_set_voltage(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 48 | enum fe_sec_voltage voltage) |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 49 | { |
Andrew de Quincey | 13fef93 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 50 | struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv; |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 51 | struct i2c_msg msg = { .addr = lnbp21->i2c_addr, .flags = 0, |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 52 | .buf = &lnbp21->config, |
| 53 | .len = sizeof(lnbp21->config) }; |
| 54 | |
| 55 | lnbp21->config &= ~(LNBP21_VSEL | LNBP21_EN); |
| 56 | |
| 57 | switch(voltage) { |
| 58 | case SEC_VOLTAGE_OFF: |
| 59 | break; |
| 60 | case SEC_VOLTAGE_13: |
| 61 | lnbp21->config |= LNBP21_EN; |
| 62 | break; |
| 63 | case SEC_VOLTAGE_18: |
| 64 | lnbp21->config |= (LNBP21_EN | LNBP21_VSEL); |
| 65 | break; |
| 66 | default: |
| 67 | return -EINVAL; |
Peter Senna Tschudin | c2c1b41 | 2012-09-28 05:37:22 -0300 | [diff] [blame] | 68 | } |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 69 | |
| 70 | lnbp21->config |= lnbp21->override_or; |
| 71 | lnbp21->config &= lnbp21->override_and; |
| 72 | |
| 73 | return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO; |
| 74 | } |
| 75 | |
| 76 | static int lnbp21_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg) |
| 77 | { |
Andrew de Quincey | 13fef93 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 78 | struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv; |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 79 | struct i2c_msg msg = { .addr = lnbp21->i2c_addr, .flags = 0, |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 80 | .buf = &lnbp21->config, |
| 81 | .len = sizeof(lnbp21->config) }; |
| 82 | |
| 83 | if (arg) |
| 84 | lnbp21->config |= LNBP21_LLC; |
| 85 | else |
| 86 | lnbp21->config &= ~LNBP21_LLC; |
| 87 | |
| 88 | lnbp21->config |= lnbp21->override_or; |
| 89 | lnbp21->config &= lnbp21->override_and; |
| 90 | |
| 91 | return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO; |
| 92 | } |
| 93 | |
Oliver Endriss | 9efc1bd | 2009-12-13 08:58:38 -0300 | [diff] [blame] | 94 | static int lnbp21_set_tone(struct dvb_frontend *fe, |
Mauro Carvalho Chehab | 0df289a | 2015-06-07 14:53:52 -0300 | [diff] [blame] | 95 | enum fe_sec_tone_mode tone) |
Oliver Endriss | 9efc1bd | 2009-12-13 08:58:38 -0300 | [diff] [blame] | 96 | { |
| 97 | struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv; |
| 98 | struct i2c_msg msg = { .addr = lnbp21->i2c_addr, .flags = 0, |
| 99 | .buf = &lnbp21->config, |
| 100 | .len = sizeof(lnbp21->config) }; |
| 101 | |
| 102 | switch (tone) { |
| 103 | case SEC_TONE_OFF: |
| 104 | lnbp21->config &= ~LNBP21_TEN; |
| 105 | break; |
| 106 | case SEC_TONE_ON: |
| 107 | lnbp21->config |= LNBP21_TEN; |
| 108 | break; |
| 109 | default: |
| 110 | return -EINVAL; |
Peter Senna Tschudin | c2c1b41 | 2012-09-28 05:37:22 -0300 | [diff] [blame] | 111 | } |
Oliver Endriss | 9efc1bd | 2009-12-13 08:58:38 -0300 | [diff] [blame] | 112 | |
| 113 | lnbp21->config |= lnbp21->override_or; |
| 114 | lnbp21->config &= lnbp21->override_and; |
| 115 | |
| 116 | return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO; |
| 117 | } |
| 118 | |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 119 | static void lnbp21_release(struct dvb_frontend *fe) |
| 120 | { |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 121 | /* LNBP power off */ |
| 122 | lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF); |
| 123 | |
Andrew de Quincey | 13fef93 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 124 | /* free data */ |
| 125 | kfree(fe->sec_priv); |
| 126 | fe->sec_priv = NULL; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 127 | } |
| 128 | |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 129 | static struct dvb_frontend *lnbx2x_attach(struct dvb_frontend *fe, |
| 130 | struct i2c_adapter *i2c, u8 override_set, |
| 131 | u8 override_clear, u8 i2c_addr, u8 config) |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 132 | { |
| 133 | struct lnbp21 *lnbp21 = kmalloc(sizeof(struct lnbp21), GFP_KERNEL); |
| 134 | if (!lnbp21) |
Andrew de Quincey | 13fef93 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 135 | return NULL; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 136 | |
| 137 | /* default configuration */ |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 138 | lnbp21->config = config; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 139 | lnbp21->i2c = i2c; |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 140 | lnbp21->i2c_addr = i2c_addr; |
Andrew de Quincey | 13fef93 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 141 | fe->sec_priv = lnbp21; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 142 | |
| 143 | /* bits which should be forced to '1' */ |
| 144 | lnbp21->override_or = override_set; |
| 145 | |
| 146 | /* bits which should be forced to '0' */ |
| 147 | lnbp21->override_and = ~override_clear; |
| 148 | |
| 149 | /* detect if it is present or not */ |
| 150 | if (lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF)) { |
| 151 | kfree(lnbp21); |
Andrew de Quincey | 13fef93 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 152 | return NULL; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 153 | } |
| 154 | |
| 155 | /* install release callback */ |
Oliver Endriss | b5b168d | 2006-08-08 19:58:27 -0300 | [diff] [blame] | 156 | fe->ops.release_sec = lnbp21_release; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 157 | |
| 158 | /* override frontend ops */ |
Patrick Boettcher | dea7486 | 2006-05-14 05:01:31 -0300 | [diff] [blame] | 159 | fe->ops.set_voltage = lnbp21_set_voltage; |
| 160 | fe->ops.enable_high_lnb_voltage = lnbp21_enable_high_lnb_voltage; |
Abylay Ospan | 0726681 | 2010-01-22 16:01:44 -0300 | [diff] [blame] | 161 | if (!(override_clear & LNBH24_TEN)) /*22kHz logic controlled by demod*/ |
Abylay Ospan | ceb59cf | 2010-01-13 05:01:56 -0300 | [diff] [blame] | 162 | fe->ops.set_tone = lnbp21_set_tone; |
Andy Walls | 3cd5270 | 2009-05-22 21:07:46 -0300 | [diff] [blame] | 163 | printk(KERN_INFO "LNBx2x attached on addr=%x\n", lnbp21->i2c_addr); |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 164 | |
Andrew de Quincey | 13fef93 | 2006-08-08 09:10:08 -0300 | [diff] [blame] | 165 | return fe; |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 166 | } |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 167 | |
Igor M. Liplianin | 55d5834d | 2009-03-04 10:40:31 -0300 | [diff] [blame] | 168 | struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe, |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 169 | struct i2c_adapter *i2c, u8 override_set, |
| 170 | u8 override_clear, u8 i2c_addr) |
| 171 | { |
| 172 | return lnbx2x_attach(fe, i2c, override_set, override_clear, |
| 173 | i2c_addr, LNBH24_TTX); |
| 174 | } |
| 175 | EXPORT_SYMBOL(lnbh24_attach); |
| 176 | |
| 177 | struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, |
| 178 | struct i2c_adapter *i2c, u8 override_set, |
| 179 | u8 override_clear) |
| 180 | { |
| 181 | return lnbx2x_attach(fe, i2c, override_set, override_clear, |
| 182 | 0x08, LNBP21_ISEL); |
| 183 | } |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 184 | EXPORT_SYMBOL(lnbp21_attach); |
| 185 | |
Igor M. Liplianin | 8c1a233 | 2009-03-03 11:24:18 -0300 | [diff] [blame] | 186 | MODULE_DESCRIPTION("Driver for lnb supply and control ic lnbp21, lnbh24"); |
| 187 | MODULE_AUTHOR("Oliver Endriss, Igor M. Liplianin"); |
Andrew de Quincey | d020542 | 2006-04-27 21:45:01 -0300 | [diff] [blame] | 188 | MODULE_LICENSE("GPL"); |