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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
290 lines
7.1 KiB
C
290 lines
7.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* TTUSB DEC Frontend Driver
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*
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* Copyright (C) 2003-2004 Alex Woods <linux-dvb@giblets.org>
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*/
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#include <media/dvb_frontend.h>
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#include "ttusbdecfe.h"
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#define LOF_HI 10600000
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#define LOF_LO 9750000
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struct ttusbdecfe_state {
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/* configuration settings */
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const struct ttusbdecfe_config* config;
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struct dvb_frontend frontend;
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u8 hi_band;
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u8 voltage;
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};
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static int ttusbdecfe_dvbs_read_status(struct dvb_frontend *fe,
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enum fe_status *status)
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{
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*status = FE_HAS_SIGNAL | FE_HAS_VITERBI |
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FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK;
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return 0;
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}
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static int ttusbdecfe_dvbt_read_status(struct dvb_frontend *fe,
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enum fe_status *status)
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{
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struct ttusbdecfe_state* state = fe->demodulator_priv;
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u8 b[] = { 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00 };
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u8 result[4];
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int len, ret;
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*status=0;
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ret=state->config->send_command(fe, 0x73, sizeof(b), b, &len, result);
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if(ret)
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return ret;
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if(len != 4) {
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printk(KERN_ERR "%s: unexpected reply\n", __func__);
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return -EIO;
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}
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switch(result[3]) {
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case 1: /* not tuned yet */
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case 2: /* no signal/no lock*/
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break;
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case 3: /* signal found and locked*/
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*status = FE_HAS_SIGNAL | FE_HAS_VITERBI |
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FE_HAS_SYNC | FE_HAS_CARRIER | FE_HAS_LOCK;
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break;
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case 4:
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*status = FE_TIMEDOUT;
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break;
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default:
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pr_info("%s: returned unknown value: %d\n",
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__func__, result[3]);
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return -EIO;
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}
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return 0;
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}
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static int ttusbdecfe_dvbt_set_frontend(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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struct ttusbdecfe_state *state = fe->demodulator_priv;
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u8 b[] = { 0x00, 0x00, 0x00, 0x03,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0xff,
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0x00, 0x00, 0x00, 0xff };
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__be32 freq = htonl(p->frequency / 1000);
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memcpy(&b[4], &freq, sizeof (u32));
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state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL);
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return 0;
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}
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static int ttusbdecfe_dvbt_get_tune_settings(struct dvb_frontend* fe,
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struct dvb_frontend_tune_settings* fesettings)
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{
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fesettings->min_delay_ms = 1500;
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/* Drift compensation makes no sense for DVB-T */
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fesettings->step_size = 0;
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fesettings->max_drift = 0;
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return 0;
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}
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static int ttusbdecfe_dvbs_set_frontend(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *p = &fe->dtv_property_cache;
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struct ttusbdecfe_state *state = fe->demodulator_priv;
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u8 b[] = { 0x00, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00 };
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__be32 freq;
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__be32 sym_rate;
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__be32 band;
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__be32 lnb_voltage;
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freq = htonl(p->frequency +
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(state->hi_band ? LOF_HI : LOF_LO));
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memcpy(&b[4], &freq, sizeof(u32));
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sym_rate = htonl(p->symbol_rate);
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memcpy(&b[12], &sym_rate, sizeof(u32));
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band = htonl(state->hi_band ? LOF_HI : LOF_LO);
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memcpy(&b[24], &band, sizeof(u32));
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lnb_voltage = htonl(state->voltage);
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memcpy(&b[28], &lnb_voltage, sizeof(u32));
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state->config->send_command(fe, 0x71, sizeof(b), b, NULL, NULL);
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return 0;
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}
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static int ttusbdecfe_dvbs_diseqc_send_master_cmd(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd *cmd)
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{
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struct ttusbdecfe_state *state = fe->demodulator_priv;
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u8 b[] = { 0x00, 0xff, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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0x00, 0x00 };
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if (cmd->msg_len > sizeof(b) - 4)
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return -EINVAL;
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memcpy(&b[4], cmd->msg, cmd->msg_len);
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state->config->send_command(fe, 0x72,
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sizeof(b) - (6 - cmd->msg_len), b,
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NULL, NULL);
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return 0;
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}
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static int ttusbdecfe_dvbs_set_tone(struct dvb_frontend *fe,
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enum fe_sec_tone_mode tone)
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{
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struct ttusbdecfe_state *state = fe->demodulator_priv;
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state->hi_band = (SEC_TONE_ON == tone);
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return 0;
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}
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static int ttusbdecfe_dvbs_set_voltage(struct dvb_frontend *fe,
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enum fe_sec_voltage voltage)
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{
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struct ttusbdecfe_state *state = fe->demodulator_priv;
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switch (voltage) {
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case SEC_VOLTAGE_13:
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state->voltage = 13;
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break;
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case SEC_VOLTAGE_18:
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state->voltage = 18;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static void ttusbdecfe_release(struct dvb_frontend* fe)
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{
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struct ttusbdecfe_state *state = fe->demodulator_priv;
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kfree(state);
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}
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static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops;
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struct dvb_frontend* ttusbdecfe_dvbt_attach(const struct ttusbdecfe_config* config)
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{
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struct ttusbdecfe_state* state = NULL;
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/* allocate memory for the internal state */
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state = kmalloc_obj(struct ttusbdecfe_state);
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if (state == NULL)
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return NULL;
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/* setup the state */
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state->config = config;
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/* create dvb_frontend */
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memcpy(&state->frontend.ops, &ttusbdecfe_dvbt_ops, sizeof(struct dvb_frontend_ops));
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state->frontend.demodulator_priv = state;
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return &state->frontend;
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}
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static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops;
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struct dvb_frontend* ttusbdecfe_dvbs_attach(const struct ttusbdecfe_config* config)
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{
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struct ttusbdecfe_state* state = NULL;
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/* allocate memory for the internal state */
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state = kmalloc_obj(struct ttusbdecfe_state);
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if (state == NULL)
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return NULL;
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/* setup the state */
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state->config = config;
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state->voltage = 0;
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state->hi_band = 0;
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/* create dvb_frontend */
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memcpy(&state->frontend.ops, &ttusbdecfe_dvbs_ops, sizeof(struct dvb_frontend_ops));
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state->frontend.demodulator_priv = state;
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return &state->frontend;
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}
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static const struct dvb_frontend_ops ttusbdecfe_dvbt_ops = {
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.delsys = { SYS_DVBT },
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.info = {
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.name = "TechnoTrend/Hauppauge DEC2000-t Frontend",
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.frequency_min_hz = 51 * MHz,
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.frequency_max_hz = 858 * MHz,
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.frequency_stepsize_hz = 62500,
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.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
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FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
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FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
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FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
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FE_CAN_HIERARCHY_AUTO,
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},
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.release = ttusbdecfe_release,
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.set_frontend = ttusbdecfe_dvbt_set_frontend,
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.get_tune_settings = ttusbdecfe_dvbt_get_tune_settings,
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.read_status = ttusbdecfe_dvbt_read_status,
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};
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static const struct dvb_frontend_ops ttusbdecfe_dvbs_ops = {
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.delsys = { SYS_DVBS },
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.info = {
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.name = "TechnoTrend/Hauppauge DEC3000-s Frontend",
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.frequency_min_hz = 950 * MHz,
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.frequency_max_hz = 2150 * MHz,
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.frequency_stepsize_hz = 125 * kHz,
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.symbol_rate_min = 1000000, /* guessed */
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.symbol_rate_max = 45000000, /* guessed */
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.caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
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FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
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FE_CAN_QPSK
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},
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.release = ttusbdecfe_release,
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.set_frontend = ttusbdecfe_dvbs_set_frontend,
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.read_status = ttusbdecfe_dvbs_read_status,
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.diseqc_send_master_cmd = ttusbdecfe_dvbs_diseqc_send_master_cmd,
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.set_voltage = ttusbdecfe_dvbs_set_voltage,
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.set_tone = ttusbdecfe_dvbs_set_tone,
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};
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MODULE_DESCRIPTION("TTUSB DEC DVB-T/S Demodulator driver");
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MODULE_AUTHOR("Alex Woods/Andrew de Quincey");
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MODULE_LICENSE("GPL");
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EXPORT_SYMBOL(ttusbdecfe_dvbt_attach);
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EXPORT_SYMBOL(ttusbdecfe_dvbs_attach);
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