^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * lnbp21.c - driver for lnb supply and control ic lnbp21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2006, 2009 Oliver Endriss <o.endriss@gmx.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * the project's page is at https://linuxtv.org
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <media/dvb_frontend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "lnbp21.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "lnbh24.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct lnbp21 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) u8 config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) u8 override_or;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) u8 override_and;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct i2c_adapter *i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) u8 i2c_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static int lnbp21_set_voltage(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) enum fe_sec_voltage voltage)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct i2c_msg msg = { .addr = lnbp21->i2c_addr, .flags = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) .buf = &lnbp21->config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .len = sizeof(lnbp21->config) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) lnbp21->config &= ~(LNBP21_VSEL | LNBP21_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) switch(voltage) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) case SEC_VOLTAGE_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) case SEC_VOLTAGE_13:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) lnbp21->config |= LNBP21_EN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) case SEC_VOLTAGE_18:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) lnbp21->config |= (LNBP21_EN | LNBP21_VSEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) lnbp21->config |= lnbp21->override_or;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) lnbp21->config &= lnbp21->override_and;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static int lnbp21_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct i2c_msg msg = { .addr = lnbp21->i2c_addr, .flags = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .buf = &lnbp21->config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .len = sizeof(lnbp21->config) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) if (arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) lnbp21->config |= LNBP21_LLC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) lnbp21->config &= ~LNBP21_LLC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) lnbp21->config |= lnbp21->override_or;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) lnbp21->config &= lnbp21->override_and;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static int lnbp21_set_tone(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) enum fe_sec_tone_mode tone)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct i2c_msg msg = { .addr = lnbp21->i2c_addr, .flags = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .buf = &lnbp21->config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .len = sizeof(lnbp21->config) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) switch (tone) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) case SEC_TONE_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) lnbp21->config &= ~LNBP21_TEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) case SEC_TONE_ON:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) lnbp21->config |= LNBP21_TEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) lnbp21->config |= lnbp21->override_or;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) lnbp21->config &= lnbp21->override_and;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) return (i2c_transfer(lnbp21->i2c, &msg, 1) == 1) ? 0 : -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static void lnbp21_release(struct dvb_frontend *fe)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) /* LNBP power off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /* free data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) kfree(fe->sec_priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) fe->sec_priv = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static struct dvb_frontend *lnbx2x_attach(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct i2c_adapter *i2c, u8 override_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) u8 override_clear, u8 i2c_addr, u8 config)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct lnbp21 *lnbp21 = kmalloc(sizeof(struct lnbp21), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (!lnbp21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /* default configuration */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) lnbp21->config = config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) lnbp21->i2c = i2c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) lnbp21->i2c_addr = i2c_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) fe->sec_priv = lnbp21;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /* bits which should be forced to '1' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) lnbp21->override_or = override_set;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) /* bits which should be forced to '0' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) lnbp21->override_and = ~override_clear;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /* detect if it is present or not */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) kfree(lnbp21);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) /* install release callback */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) fe->ops.release_sec = lnbp21_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /* override frontend ops */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) fe->ops.set_voltage = lnbp21_set_voltage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) fe->ops.enable_high_lnb_voltage = lnbp21_enable_high_lnb_voltage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (!(override_clear & LNBH24_TEN)) /*22kHz logic controlled by demod*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) fe->ops.set_tone = lnbp21_set_tone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) printk(KERN_INFO "LNBx2x attached on addr=%x\n", lnbp21->i2c_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return fe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct dvb_frontend *lnbh24_attach(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct i2c_adapter *i2c, u8 override_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) u8 override_clear, u8 i2c_addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) return lnbx2x_attach(fe, i2c, override_set, override_clear,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) i2c_addr, LNBH24_TTX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) EXPORT_SYMBOL(lnbh24_attach);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct i2c_adapter *i2c, u8 override_set,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) u8 override_clear)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) return lnbx2x_attach(fe, i2c, override_set, override_clear,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 0x08, LNBP21_ISEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) EXPORT_SYMBOL(lnbp21_attach);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) MODULE_DESCRIPTION("Driver for lnb supply and control ic lnbp21, lnbh24");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) MODULE_AUTHOR("Oliver Endriss, Igor M. Liplianin");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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