summaryrefslogtreecommitdiff
path: root/drivers/media/dvb-frontends/dib3000mc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb-frontends/dib3000mc.c')
-rw-r--r--drivers/media/dvb-frontends/dib3000mc.c109
1 files changed, 72 insertions, 37 deletions
diff --git a/drivers/media/dvb-frontends/dib3000mc.c b/drivers/media/dvb-frontends/dib3000mc.c
index ffad181a9692..c2fca8289aba 100644
--- a/drivers/media/dvb-frontends/dib3000mc.c
+++ b/drivers/media/dvb-frontends/dib3000mc.c
@@ -1,21 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for DiBcom DiB3000MC/P-demodulator.
*
* Copyright (C) 2004-7 DiBcom (http://www.dibcom.fr/)
- * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
+ * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
*
* This code is partially based on the previous dib3000mc.c .
- *
- * 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, version 2.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/i2c.h>
-#include "dvb_frontend.h"
+#include <media/dvb_frontend.h>
#include "dib3000mc.h"
@@ -27,7 +26,11 @@ static int buggy_sfn_workaround;
module_param(buggy_sfn_workaround, int, 0644);
MODULE_PARM_DESC(buggy_sfn_workaround, "Enable work-around for buggy SFNs (default: 0)");
-#define dprintk(args...) do { if (debug) { printk(KERN_DEBUG "DiB3000MC/P:"); printk(args); printk("\n"); } } while (0)
+#define dprintk(fmt, arg...) do { \
+ if (debug) \
+ printk(KERN_DEBUG pr_fmt("%s: " fmt), \
+ __func__, ##arg); \
+} while (0)
struct dib3000mc_state {
struct dvb_frontend demod;
@@ -49,29 +52,57 @@ struct dib3000mc_state {
static u16 dib3000mc_read_word(struct dib3000mc_state *state, u16 reg)
{
- u8 wb[2] = { (reg >> 8) | 0x80, reg & 0xff };
- u8 rb[2];
struct i2c_msg msg[2] = {
- { .addr = state->i2c_addr >> 1, .flags = 0, .buf = wb, .len = 2 },
- { .addr = state->i2c_addr >> 1, .flags = I2C_M_RD, .buf = rb, .len = 2 },
+ { .addr = state->i2c_addr >> 1, .flags = 0, .len = 2 },
+ { .addr = state->i2c_addr >> 1, .flags = I2C_M_RD, .len = 2 },
};
+ u16 word;
+ u8 *b;
+
+ b = kmalloc(4, GFP_KERNEL);
+ if (!b)
+ return 0;
+
+ b[0] = (reg >> 8) | 0x80;
+ b[1] = reg;
+ b[2] = 0;
+ b[3] = 0;
+
+ msg[0].buf = b;
+ msg[1].buf = b + 2;
if (i2c_transfer(state->i2c_adap, msg, 2) != 2)
dprintk("i2c read error on %d\n",reg);
- return (rb[0] << 8) | rb[1];
+ word = (b[2] << 8) | b[3];
+ kfree(b);
+
+ return word;
}
static int dib3000mc_write_word(struct dib3000mc_state *state, u16 reg, u16 val)
{
- u8 b[4] = {
- (reg >> 8) & 0xff, reg & 0xff,
- (val >> 8) & 0xff, val & 0xff,
- };
struct i2c_msg msg = {
- .addr = state->i2c_addr >> 1, .flags = 0, .buf = b, .len = 4
+ .addr = state->i2c_addr >> 1, .flags = 0, .len = 4
};
- return i2c_transfer(state->i2c_adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
+ int rc;
+ u8 *b;
+
+ b = kmalloc(4, GFP_KERNEL);
+ if (!b)
+ return -ENOMEM;
+
+ b[0] = reg >> 8;
+ b[1] = reg;
+ b[2] = val >> 8;
+ b[3] = val;
+
+ msg.buf = b;
+
+ rc = i2c_transfer(state->i2c_adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
+ kfree(b);
+
+ return rc;
}
static int dib3000mc_identify(struct dib3000mc_state *state)
@@ -131,7 +162,7 @@ static int dib3000mc_set_timing(struct dib3000mc_state *state, s16 nfft, u32 bw,
static int dib3000mc_setup_pwm_state(struct dib3000mc_state *state)
{
u16 reg_51, reg_52 = state->cfg->agc->setup & 0xfefb;
- if (state->cfg->pwm3_inversion) {
+ if (state->cfg->pwm3_inversion) {
reg_51 = (2 << 14) | (0 << 10) | (7 << 6) | (2 << 2) | (2 << 0);
reg_52 |= (1 << 2);
} else {
@@ -141,12 +172,12 @@ static int dib3000mc_setup_pwm_state(struct dib3000mc_state *state)
dib3000mc_write_word(state, 51, reg_51);
dib3000mc_write_word(state, 52, reg_52);
- if (state->cfg->use_pwm3)
+ if (state->cfg->use_pwm3)
dib3000mc_write_word(state, 245, (1 << 3) | (1 << 0));
else
dib3000mc_write_word(state, 245, 0);
- dib3000mc_write_word(state, 1040, 0x3);
+ dib3000mc_write_word(state, 1040, 0x3);
return 0;
}
@@ -417,7 +448,7 @@ static int dib3000mc_sleep(struct dvb_frontend *demod)
dib3000mc_write_word(state, 1032, 0xFFFF);
dib3000mc_write_word(state, 1033, 0xFFF0);
- return 0;
+ return 0;
}
static void dib3000mc_set_adp_cfg(struct dib3000mc_state *state, s16 qam)
@@ -447,10 +478,14 @@ static void dib3000mc_set_channel_cfg(struct dib3000mc_state *state,
dib3000mc_set_bandwidth(state, bw);
dib3000mc_set_timing(state, ch->transmission_mode, bw, 0);
-// if (boost)
-// dib3000mc_write_word(state, 100, (11 << 6) + 6);
-// else
+#if 1
+ dib3000mc_write_word(state, 100, (16 << 6) + 9);
+#else
+ if (boost)
+ dib3000mc_write_word(state, 100, (11 << 6) + 6);
+ else
dib3000mc_write_word(state, 100, (16 << 6) + 9);
+#endif
dib3000mc_write_word(state, 1027, 0x0800);
dib3000mc_write_word(state, 1027, 0x0000);
@@ -632,9 +667,9 @@ struct i2c_adapter * dib3000mc_get_tuner_i2c_master(struct dvb_frontend *demod,
EXPORT_SYMBOL(dib3000mc_get_tuner_i2c_master);
-static int dib3000mc_get_frontend(struct dvb_frontend* fe)
+static int dib3000mc_get_frontend(struct dvb_frontend* fe,
+ struct dtv_frontend_properties *fep)
{
- struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
struct dib3000mc_state *state = fe->demodulator_priv;
u16 tps = dib3000mc_read_word(state,458);
@@ -722,7 +757,7 @@ static int dib3000mc_set_frontend(struct dvb_frontend *fe)
if (found == 0 || found == 1)
return 0; // no channel found
- dib3000mc_get_frontend(fe);
+ dib3000mc_get_frontend(fe, fep);
}
ret = dib3000mc_tune(fe);
@@ -732,7 +767,7 @@ static int dib3000mc_set_frontend(struct dvb_frontend *fe)
return ret;
}
-static int dib3000mc_read_status(struct dvb_frontend *fe, fe_status_t *stat)
+static int dib3000mc_read_status(struct dvb_frontend *fe, enum fe_status *stat)
{
struct dib3000mc_state *state = fe->demodulator_priv;
u16 lock = dib3000mc_read_word(state, 509);
@@ -824,7 +859,7 @@ int dib3000mc_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 defa
int k;
u8 new_addr;
- static u8 DIB3000MC_I2C_ADDRESS[] = {20,22,24,26};
+ static const u8 DIB3000MC_I2C_ADDRESS[] = { 20, 22, 24, 26 };
dmcst = kzalloc(sizeof(struct dib3000mc_state), GFP_KERNEL);
if (dmcst == NULL)
@@ -869,7 +904,7 @@ int dib3000mc_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 defa
}
EXPORT_SYMBOL(dib3000mc_i2c_enumeration);
-static struct dvb_frontend_ops dib3000mc_ops;
+static const struct dvb_frontend_ops dib3000mc_ops;
struct dvb_frontend * dib3000mc_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib3000mc_config *cfg)
{
@@ -900,15 +935,15 @@ error:
kfree(st);
return NULL;
}
-EXPORT_SYMBOL(dib3000mc_attach);
+EXPORT_SYMBOL_GPL(dib3000mc_attach);
-static struct dvb_frontend_ops dib3000mc_ops = {
+static const struct dvb_frontend_ops dib3000mc_ops = {
.delsys = { SYS_DVBT },
.info = {
.name = "DiBcom 3000MC/P",
- .frequency_min = 44250000,
- .frequency_max = 867250000,
- .frequency_stepsize = 62500,
+ .frequency_min_hz = 44250 * kHz,
+ .frequency_max_hz = 867250 * kHz,
+ .frequency_stepsize_hz = 62500,
.caps = FE_CAN_INVERSION_AUTO |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
@@ -935,6 +970,6 @@ static struct dvb_frontend_ops dib3000mc_ops = {
.read_ucblocks = dib3000mc_read_unc_blocks,
};
-MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
MODULE_DESCRIPTION("Driver for the DiBcom 3000MC/P COFDM demodulator");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-25 17:18:30 +0000