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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-13 23:13:41 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-13 23:13:41 -0300 |
commit | 9a0bf528b4d66b605f02634236da085595c22101 (patch) | |
tree | e9ff008ff15c3ee5add6d41173ee5e61939480dd /drivers/media/dvb/frontends/or51211.c | |
parent | 3d6c2bc08ac4f75bf3597740357c98f2207ca412 (diff) | |
download | blackbird-op-linux-9a0bf528b4d66b605f02634236da085595c22101.tar.gz blackbird-op-linux-9a0bf528b4d66b605f02634236da085595c22101.zip |
[media] move the dvb/frontends to drivers/media/dvb-frontends
Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/or51211.c')
-rw-r--r-- | drivers/media/dvb/frontends/or51211.c | 581 |
1 files changed, 0 insertions, 581 deletions
diff --git a/drivers/media/dvb/frontends/or51211.c b/drivers/media/dvb/frontends/or51211.c deleted file mode 100644 index c625b57b4333..000000000000 --- a/drivers/media/dvb/frontends/or51211.c +++ /dev/null @@ -1,581 +0,0 @@ -/* - * Support for OR51211 (pcHDTV HD-2000) - VSB - * - * Copyright (C) 2005 Kirk Lapray <kirk_lapray@bigfoot.com> - * - * Based on code from Jack Kelliher (kelliher@xmission.com) - * Copyright (C) 2002 & pcHDTV, inc. - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * -*/ - -/* - * This driver needs external firmware. Please use the command - * "<kerneldir>/Documentation/dvb/get_dvb_firmware or51211" to - * download/extract it, and then copy it to /usr/lib/hotplug/firmware - * or /lib/firmware (depending on configuration of firmware hotplug). - */ -#define OR51211_DEFAULT_FIRMWARE "dvb-fe-or51211.fw" - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/device.h> -#include <linux/firmware.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <asm/byteorder.h> - -#include "dvb_math.h" -#include "dvb_frontend.h" -#include "or51211.h" - -static int debug; -#define dprintk(args...) \ - do { \ - if (debug) printk(KERN_DEBUG "or51211: " args); \ - } while (0) - -static u8 run_buf[] = {0x7f,0x01}; -static u8 cmd_buf[] = {0x04,0x01,0x50,0x80,0x06}; // ATSC - -struct or51211_state { - - struct i2c_adapter* i2c; - - /* Configuration settings */ - const struct or51211_config* config; - - struct dvb_frontend frontend; - struct bt878* bt; - - /* Demodulator private data */ - u8 initialized:1; - u32 snr; /* Result of last SNR claculation */ - - /* Tuner private data */ - u32 current_frequency; -}; - -static int i2c_writebytes (struct or51211_state* state, u8 reg, const u8 *buf, - int len) -{ - int err; - struct i2c_msg msg; - msg.addr = reg; - msg.flags = 0; - msg.len = len; - msg.buf = (u8 *)buf; - - if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { - printk(KERN_WARNING "or51211: i2c_writebytes error " - "(addr %02x, err == %i)\n", reg, err); - return -EREMOTEIO; - } - - return 0; -} - -static int i2c_readbytes(struct or51211_state *state, u8 reg, u8 *buf, int len) -{ - int err; - struct i2c_msg msg; - msg.addr = reg; - msg.flags = I2C_M_RD; - msg.len = len; - msg.buf = buf; - - if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) { - printk(KERN_WARNING "or51211: i2c_readbytes error " - "(addr %02x, err == %i)\n", reg, err); - return -EREMOTEIO; - } - - return 0; -} - -static int or51211_load_firmware (struct dvb_frontend* fe, - const struct firmware *fw) -{ - struct or51211_state* state = fe->demodulator_priv; - u8 tudata[585]; - int i; - - dprintk("Firmware is %zd bytes\n",fw->size); - - /* Get eprom data */ - tudata[0] = 17; - if (i2c_writebytes(state,0x50,tudata,1)) { - printk(KERN_WARNING "or51211:load_firmware error eprom addr\n"); - return -1; - } - if (i2c_readbytes(state,0x50,&tudata[145],192)) { - printk(KERN_WARNING "or51211: load_firmware error eprom\n"); - return -1; - } - - /* Create firmware buffer */ - for (i = 0; i < 145; i++) - tudata[i] = fw->data[i]; - - for (i = 0; i < 248; i++) - tudata[i+337] = fw->data[145+i]; - - state->config->reset(fe); - - if (i2c_writebytes(state,state->config->demod_address,tudata,585)) { - printk(KERN_WARNING "or51211: load_firmware error 1\n"); - return -1; - } - msleep(1); - - if (i2c_writebytes(state,state->config->demod_address, - &fw->data[393],8125)) { - printk(KERN_WARNING "or51211: load_firmware error 2\n"); - return -1; - } - msleep(1); - - if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) { - printk(KERN_WARNING "or51211: load_firmware error 3\n"); - return -1; - } - - /* Wait at least 5 msec */ - msleep(10); - if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) { - printk(KERN_WARNING "or51211: load_firmware error 4\n"); - return -1; - } - msleep(10); - - printk("or51211: Done.\n"); - return 0; -}; - -static int or51211_setmode(struct dvb_frontend* fe, int mode) -{ - struct or51211_state* state = fe->demodulator_priv; - u8 rec_buf[14]; - - state->config->setmode(fe, mode); - - if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) { - printk(KERN_WARNING "or51211: setmode error 1\n"); - return -1; - } - - /* Wait at least 5 msec */ - msleep(10); - if (i2c_writebytes(state,state->config->demod_address,run_buf,2)) { - printk(KERN_WARNING "or51211: setmode error 2\n"); - return -1; - } - - msleep(10); - - /* Set operation mode in Receiver 1 register; - * type 1: - * data 0x50h Automatic sets receiver channel conditions - * Automatic NTSC rejection filter - * Enable MPEG serial data output - * MPEG2tr - * High tuner phase noise - * normal +/-150kHz Carrier acquisition range - */ - if (i2c_writebytes(state,state->config->demod_address,cmd_buf,3)) { - printk(KERN_WARNING "or51211: setmode error 3\n"); - return -1; - } - - rec_buf[0] = 0x04; - rec_buf[1] = 0x00; - rec_buf[2] = 0x03; - rec_buf[3] = 0x00; - msleep(20); - if (i2c_writebytes(state,state->config->demod_address,rec_buf,3)) { - printk(KERN_WARNING "or51211: setmode error 5\n"); - } - msleep(3); - if (i2c_readbytes(state,state->config->demod_address,&rec_buf[10],2)) { - printk(KERN_WARNING "or51211: setmode error 6"); - return -1; - } - dprintk("setmode rec status %02x %02x\n",rec_buf[10],rec_buf[11]); - - return 0; -} - -static int or51211_set_parameters(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct or51211_state* state = fe->demodulator_priv; - - /* Change only if we are actually changing the channel */ - if (state->current_frequency != p->frequency) { - if (fe->ops.tuner_ops.set_params) { - fe->ops.tuner_ops.set_params(fe); - if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); - } - - /* Set to ATSC mode */ - or51211_setmode(fe,0); - - /* Update current frequency */ - state->current_frequency = p->frequency; - } - return 0; -} - -static int or51211_read_status(struct dvb_frontend* fe, fe_status_t* status) -{ - struct or51211_state* state = fe->demodulator_priv; - unsigned char rec_buf[2]; - unsigned char snd_buf[] = {0x04,0x00,0x03,0x00}; - *status = 0; - - /* Receiver Status */ - if (i2c_writebytes(state,state->config->demod_address,snd_buf,3)) { - printk(KERN_WARNING "or51132: read_status write error\n"); - return -1; - } - msleep(3); - if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { - printk(KERN_WARNING "or51132: read_status read error\n"); - return -1; - } - dprintk("read_status %x %x\n",rec_buf[0],rec_buf[1]); - - if (rec_buf[0] & 0x01) { /* Receiver Lock */ - *status |= FE_HAS_SIGNAL; - *status |= FE_HAS_CARRIER; - *status |= FE_HAS_VITERBI; - *status |= FE_HAS_SYNC; - *status |= FE_HAS_LOCK; - } - return 0; -} - -/* Calculate SNR estimation (scaled by 2^24) - - 8-VSB SNR equation from Oren datasheets - - For 8-VSB: - SNR[dB] = 10 * log10(219037.9454 / MSE^2 ) - - We re-write the snr equation as: - SNR * 2^24 = 10*(c - 2*intlog10(MSE)) - Where for 8-VSB, c = log10(219037.9454) * 2^24 */ - -static u32 calculate_snr(u32 mse, u32 c) -{ - if (mse == 0) /* No signal */ - return 0; - - mse = 2*intlog10(mse); - if (mse > c) { - /* Negative SNR, which is possible, but realisticly the - demod will lose lock before the signal gets this bad. The - API only allows for unsigned values, so just return 0 */ - return 0; - } - return 10*(c - mse); -} - -static int or51211_read_snr(struct dvb_frontend* fe, u16* snr) -{ - struct or51211_state* state = fe->demodulator_priv; - u8 rec_buf[2]; - u8 snd_buf[3]; - - /* SNR after Equalizer */ - snd_buf[0] = 0x04; - snd_buf[1] = 0x00; - snd_buf[2] = 0x04; - - if (i2c_writebytes(state,state->config->demod_address,snd_buf,3)) { - printk(KERN_WARNING "%s: error writing snr reg\n", - __func__); - return -1; - } - if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { - printk(KERN_WARNING "%s: read_status read error\n", - __func__); - return -1; - } - - state->snr = calculate_snr(rec_buf[0], 89599047); - *snr = (state->snr) >> 16; - - dprintk("%s: noise = 0x%02x, snr = %d.%02d dB\n", __func__, rec_buf[0], - state->snr >> 24, (((state->snr>>8) & 0xffff) * 100) >> 16); - - return 0; -} - -static int or51211_read_signal_strength(struct dvb_frontend* fe, u16* strength) -{ - /* Calculate Strength from SNR up to 35dB */ - /* Even though the SNR can go higher than 35dB, there is some comfort */ - /* factor in having a range of strong signals that can show at 100% */ - struct or51211_state* state = (struct or51211_state*)fe->demodulator_priv; - u16 snr; - int ret; - - ret = fe->ops.read_snr(fe, &snr); - if (ret != 0) - return ret; - /* Rather than use the 8.8 value snr, use state->snr which is 8.24 */ - /* scale the range 0 - 35*2^24 into 0 - 65535 */ - if (state->snr >= 8960 * 0x10000) - *strength = 0xffff; - else - *strength = state->snr / 8960; - - return 0; -} - -static int or51211_read_ber(struct dvb_frontend* fe, u32* ber) -{ - *ber = -ENOSYS; - return 0; -} - -static int or51211_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) -{ - *ucblocks = -ENOSYS; - return 0; -} - -static int or51211_sleep(struct dvb_frontend* fe) -{ - return 0; -} - -static int or51211_init(struct dvb_frontend* fe) -{ - struct or51211_state* state = fe->demodulator_priv; - const struct or51211_config* config = state->config; - const struct firmware* fw; - unsigned char get_ver_buf[] = {0x04,0x00,0x30,0x00,0x00}; - unsigned char rec_buf[14]; - int ret,i; - - if (!state->initialized) { - /* Request the firmware, this will block until it uploads */ - printk(KERN_INFO "or51211: Waiting for firmware upload " - "(%s)...\n", OR51211_DEFAULT_FIRMWARE); - ret = config->request_firmware(fe, &fw, - OR51211_DEFAULT_FIRMWARE); - printk(KERN_INFO "or51211:Got Hotplug firmware\n"); - if (ret) { - printk(KERN_WARNING "or51211: No firmware uploaded " - "(timeout or file not found?)\n"); - return ret; - } - - ret = or51211_load_firmware(fe, fw); - release_firmware(fw); - if (ret) { - printk(KERN_WARNING "or51211: Writing firmware to " - "device failed!\n"); - return ret; - } - printk(KERN_INFO "or51211: Firmware upload complete.\n"); - - /* Set operation mode in Receiver 1 register; - * type 1: - * data 0x50h Automatic sets receiver channel conditions - * Automatic NTSC rejection filter - * Enable MPEG serial data output - * MPEG2tr - * High tuner phase noise - * normal +/-150kHz Carrier acquisition range - */ - if (i2c_writebytes(state,state->config->demod_address, - cmd_buf,3)) { - printk(KERN_WARNING "or51211: Load DVR Error 5\n"); - return -1; - } - - /* Read back ucode version to besure we loaded correctly */ - /* and are really up and running */ - rec_buf[0] = 0x04; - rec_buf[1] = 0x00; - rec_buf[2] = 0x03; - rec_buf[3] = 0x00; - msleep(30); - if (i2c_writebytes(state,state->config->demod_address, - rec_buf,3)) { - printk(KERN_WARNING "or51211: Load DVR Error A\n"); - return -1; - } - msleep(3); - if (i2c_readbytes(state,state->config->demod_address, - &rec_buf[10],2)) { - printk(KERN_WARNING "or51211: Load DVR Error B\n"); - return -1; - } - - rec_buf[0] = 0x04; - rec_buf[1] = 0x00; - rec_buf[2] = 0x01; - rec_buf[3] = 0x00; - msleep(20); - if (i2c_writebytes(state,state->config->demod_address, - rec_buf,3)) { - printk(KERN_WARNING "or51211: Load DVR Error C\n"); - return -1; - } - msleep(3); - if (i2c_readbytes(state,state->config->demod_address, - &rec_buf[12],2)) { - printk(KERN_WARNING "or51211: Load DVR Error D\n"); - return -1; - } - - for (i = 0; i < 8; i++) - rec_buf[i]=0xed; - - for (i = 0; i < 5; i++) { - msleep(30); - get_ver_buf[4] = i+1; - if (i2c_writebytes(state,state->config->demod_address, - get_ver_buf,5)) { - printk(KERN_WARNING "or51211:Load DVR Error 6" - " - %d\n",i); - return -1; - } - msleep(3); - - if (i2c_readbytes(state,state->config->demod_address, - &rec_buf[i*2],2)) { - printk(KERN_WARNING "or51211:Load DVR Error 7" - " - %d\n",i); - return -1; - } - /* If we didn't receive the right index, try again */ - if ((int)rec_buf[i*2+1]!=i+1){ - i--; - } - } - dprintk("read_fwbits %x %x %x %x %x %x %x %x %x %x\n", - rec_buf[0], rec_buf[1], rec_buf[2], rec_buf[3], - rec_buf[4], rec_buf[5], rec_buf[6], rec_buf[7], - rec_buf[8], rec_buf[9]); - - printk(KERN_INFO "or51211: ver TU%02x%02x%02x VSB mode %02x" - " Status %02x\n", - rec_buf[2], rec_buf[4],rec_buf[6], - rec_buf[12],rec_buf[10]); - - rec_buf[0] = 0x04; - rec_buf[1] = 0x00; - rec_buf[2] = 0x03; - rec_buf[3] = 0x00; - msleep(20); - if (i2c_writebytes(state,state->config->demod_address, - rec_buf,3)) { - printk(KERN_WARNING "or51211: Load DVR Error 8\n"); - return -1; - } - msleep(20); - if (i2c_readbytes(state,state->config->demod_address, - &rec_buf[8],2)) { - printk(KERN_WARNING "or51211: Load DVR Error 9\n"); - return -1; - } - state->initialized = 1; - } - - return 0; -} - -static int or51211_get_tune_settings(struct dvb_frontend* fe, - struct dvb_frontend_tune_settings* fesettings) -{ - fesettings->min_delay_ms = 500; - fesettings->step_size = 0; - fesettings->max_drift = 0; - return 0; -} - -static void or51211_release(struct dvb_frontend* fe) -{ - struct or51211_state* state = fe->demodulator_priv; - state->config->sleep(fe); - kfree(state); -} - -static struct dvb_frontend_ops or51211_ops; - -struct dvb_frontend* or51211_attach(const struct or51211_config* config, - struct i2c_adapter* i2c) -{ - struct or51211_state* state = NULL; - - /* Allocate memory for the internal state */ - state = kzalloc(sizeof(struct or51211_state), GFP_KERNEL); - if (state == NULL) - return NULL; - - /* Setup the state */ - state->config = config; - state->i2c = i2c; - state->initialized = 0; - state->current_frequency = 0; - - /* Create dvb_frontend */ - memcpy(&state->frontend.ops, &or51211_ops, sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - return &state->frontend; -} - -static struct dvb_frontend_ops or51211_ops = { - .delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B }, - .info = { - .name = "Oren OR51211 VSB Frontend", - .frequency_min = 44000000, - .frequency_max = 958000000, - .frequency_stepsize = 166666, - .caps = 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 | - FE_CAN_8VSB - }, - - .release = or51211_release, - - .init = or51211_init, - .sleep = or51211_sleep, - - .set_frontend = or51211_set_parameters, - .get_tune_settings = or51211_get_tune_settings, - - .read_status = or51211_read_status, - .read_ber = or51211_read_ber, - .read_signal_strength = or51211_read_signal_strength, - .read_snr = or51211_read_snr, - .read_ucblocks = or51211_read_ucblocks, -}; - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - -MODULE_DESCRIPTION("Oren OR51211 VSB [pcHDTV HD-2000] Demodulator Driver"); -MODULE_AUTHOR("Kirk Lapray"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(or51211_attach); - |