diff options
Diffstat (limited to 'drivers/media/dvb/frontends/or51132.c')
| -rw-r--r-- | drivers/media/dvb/frontends/or51132.c | 627 |
1 files changed, 0 insertions, 627 deletions
diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c deleted file mode 100644 index 817b044c7fd..00000000000 --- a/drivers/media/dvb/frontends/or51132.c +++ /dev/null @@ -1,627 +0,0 @@ -/* - * Support for OR51132 (pcHDTV HD-3000) - VSB/QAM - * - * 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 two external firmware files. Please copy - * "dvb-fe-or51132-vsb.fw" and "dvb-fe-or51132-qam.fw" to - * /usr/lib/hotplug/firmware/ or /lib/firmware/ - * (depending on configuration of firmware hotplug). - */ -#define OR51132_VSB_FIRMWARE "dvb-fe-or51132-vsb.fw" -#define OR51132_QAM_FIRMWARE "dvb-fe-or51132-qam.fw" - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <asm/byteorder.h> - -#include "dvb_frontend.h" -#include "dvb-pll.h" -#include "or51132.h" - -static int debug; -#define dprintk(args...) \ - do { \ - if (debug) printk(KERN_DEBUG "or51132: " args); \ - } while (0) - - -struct or51132_state -{ - struct i2c_adapter* i2c; - struct dvb_frontend_ops ops; - - /* Configuration settings */ - const struct or51132_config* config; - - struct dvb_frontend frontend; - - /* Demodulator private data */ - fe_modulation_t current_modulation; - - /* Tuner private data */ - u32 current_frequency; -}; - -static int i2c_writebytes (struct or51132_state* state, u8 reg, u8 *buf, int len) -{ - int err; - struct i2c_msg msg; - msg.addr = reg; - msg.flags = 0; - msg.len = len; - msg.buf = buf; - - if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) { - printk(KERN_WARNING "or51132: i2c_writebytes error (addr %02x, err == %i)\n", reg, err); - return -EREMOTEIO; - } - - return 0; -} - -static u8 i2c_readbytes (struct or51132_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 "or51132: i2c_readbytes error (addr %02x, err == %i)\n", reg, err); - return -EREMOTEIO; - } - - return 0; -} - -static int or51132_load_firmware (struct dvb_frontend* fe, const struct firmware *fw) -{ - struct or51132_state* state = fe->demodulator_priv; - static u8 run_buf[] = {0x7F,0x01}; - static u8 get_ver_buf[] = {0x04,0x00,0x30,0x00,0x00}; - u8 rec_buf[14]; - u8 cmd_buf[14]; - u32 firmwareAsize, firmwareBsize; - int i,ret; - - dprintk("Firmware is %Zd bytes\n",fw->size); - - /* Get size of firmware A and B */ - firmwareAsize = le32_to_cpu(*((u32*)fw->data)); - dprintk("FirmwareA is %i bytes\n",firmwareAsize); - firmwareBsize = le32_to_cpu(*((u32*)(fw->data+4))); - dprintk("FirmwareB is %i bytes\n",firmwareBsize); - - /* Upload firmware */ - if ((ret = i2c_writebytes(state,state->config->demod_address, - &fw->data[8],firmwareAsize))) { - printk(KERN_WARNING "or51132: load_firmware error 1\n"); - return ret; - } - msleep(1); /* 1ms */ - if ((ret = i2c_writebytes(state,state->config->demod_address, - &fw->data[8+firmwareAsize],firmwareBsize))) { - printk(KERN_WARNING "or51132: load_firmware error 2\n"); - return ret; - } - msleep(1); /* 1ms */ - - if ((ret = i2c_writebytes(state,state->config->demod_address, - run_buf,2))) { - printk(KERN_WARNING "or51132: load_firmware error 3\n"); - return ret; - } - - /* Wait at least 5 msec */ - msleep(20); /* 10ms */ - - if ((ret = i2c_writebytes(state,state->config->demod_address, - run_buf,2))) { - printk(KERN_WARNING "or51132: load_firmware error 4\n"); - return ret; - } - - /* 50ms for operation to begin */ - msleep(50); - - /* Read back ucode version to besure we loaded correctly and are really up and running */ - /* Get uCode version */ - cmd_buf[0] = 0x10; - cmd_buf[1] = 0x10; - cmd_buf[2] = 0x00; - cmd_buf[3] = 0x00; - msleep(20); /* 20ms */ - if ((ret = i2c_writebytes(state,state->config->demod_address, - cmd_buf,3))) { - printk(KERN_WARNING "or51132: load_firmware error a\n"); - return ret; - } - - cmd_buf[0] = 0x04; - cmd_buf[1] = 0x17; - cmd_buf[2] = 0x00; - cmd_buf[3] = 0x00; - msleep(20); /* 20ms */ - if ((ret = i2c_writebytes(state,state->config->demod_address, - cmd_buf,2))) { - printk(KERN_WARNING "or51132: load_firmware error b\n"); - return ret; - } - - cmd_buf[0] = 0x00; - cmd_buf[1] = 0x00; - cmd_buf[2] = 0x00; - cmd_buf[3] = 0x00; - msleep(20); /* 20ms */ - if ((ret = i2c_writebytes(state,state->config->demod_address, - cmd_buf,2))) { - printk(KERN_WARNING "or51132: load_firmware error c\n"); - return ret; - } - - for(i=0;i<4;i++) { - msleep(20); /* 20ms */ - get_ver_buf[4] = i+1; - if ((ret = i2c_readbytes(state,state->config->demod_address, - &rec_buf[i*2],2))) { - printk(KERN_WARNING - "or51132: load_firmware error d - %d\n",i); - return ret; - } - } - - printk(KERN_WARNING - "or51132: Version: %02X%02X%02X%02X-%02X%02X%02X%02X (%02X%01X-%01X-%02X%01X-%01X)\n", - rec_buf[1],rec_buf[0],rec_buf[3],rec_buf[2], - rec_buf[5],rec_buf[4],rec_buf[7],rec_buf[6], - rec_buf[3],rec_buf[2]>>4,rec_buf[2]&0x0f, - rec_buf[5],rec_buf[4]>>4,rec_buf[4]&0x0f); - - cmd_buf[0] = 0x10; - cmd_buf[1] = 0x00; - cmd_buf[2] = 0x00; - cmd_buf[3] = 0x00; - msleep(20); /* 20ms */ - if ((ret = i2c_writebytes(state,state->config->demod_address, - cmd_buf,3))) { - printk(KERN_WARNING "or51132: load_firmware error e\n"); - return ret; - } - return 0; -}; - -static int or51132_init(struct dvb_frontend* fe) -{ - return 0; -} - -static int or51132_read_ber(struct dvb_frontend* fe, u32* ber) -{ - *ber = 0; - return 0; -} - -static int or51132_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) -{ - *ucblocks = 0; - return 0; -} - -static int or51132_sleep(struct dvb_frontend* fe) -{ - return 0; -} - -static int or51132_setmode(struct dvb_frontend* fe) -{ - struct or51132_state* state = fe->demodulator_priv; - unsigned char cmd_buf[4]; - - dprintk("setmode %d\n",(int)state->current_modulation); - /* set operation mode in Receiver 1 register; */ - cmd_buf[0] = 0x04; - cmd_buf[1] = 0x01; - switch (state->current_modulation) { - case QAM_256: - case QAM_64: - case QAM_AUTO: - /* Auto-deinterleave; MPEG ser, MPEG2tr, phase noise-high*/ - cmd_buf[2] = 0x5F; - break; - case VSB_8: - /* Auto CH, Auto NTSC rej, MPEGser, MPEG2tr, phase noise-high*/ - cmd_buf[2] = 0x50; - break; - default: - printk("setmode:Modulation set to unsupported value\n"); - }; - cmd_buf[3] = 0x00; - if (i2c_writebytes(state,state->config->demod_address, - cmd_buf,3)) { - printk(KERN_WARNING "or51132: set_mode error 1\n"); - return -1; - } - dprintk("or51132: set #1 to %02x\n", cmd_buf[2]); - - /* Set operation mode in Receiver 6 register */ - cmd_buf[0] = 0x1C; - switch (state->current_modulation) { - case QAM_AUTO: - /* REC MODE Normal Carrier Lock */ - cmd_buf[1] = 0x00; - /* Channel MODE Auto QAM64/256 */ - cmd_buf[2] = 0x4f; - break; - case QAM_256: - /* REC MODE Normal Carrier Lock */ - cmd_buf[1] = 0x00; - /* Channel MODE QAM256 */ - cmd_buf[2] = 0x45; - break; - case QAM_64: - /* REC MODE Normal Carrier Lock */ - cmd_buf[1] = 0x00; - /* Channel MODE QAM64 */ - cmd_buf[2] = 0x43; - break; - case VSB_8: - /* REC MODE inv IF spectrum, Normal */ - cmd_buf[1] = 0x03; - /* Channel MODE ATSC/VSB8 */ - cmd_buf[2] = 0x06; - break; - default: - printk("setmode: Modulation set to unsupported value\n"); - }; - cmd_buf[3] = 0x00; - msleep(20); /* 20ms */ - if (i2c_writebytes(state,state->config->demod_address, - cmd_buf,3)) { - printk(KERN_WARNING "or51132: set_mode error 2\n"); - return -1; - } - dprintk("or51132: set #6 to 0x%02x%02x\n", cmd_buf[1], cmd_buf[2]); - - return 0; -} - -static int or51132_set_parameters(struct dvb_frontend* fe, - struct dvb_frontend_parameters *param) -{ - int ret; - u8 buf[4]; - struct or51132_state* state = fe->demodulator_priv; - const struct firmware *fw; - - /* Change only if we are actually changing the modulation */ - if (state->current_modulation != param->u.vsb.modulation) { - switch(param->u.vsb.modulation) { - case VSB_8: - dprintk("set_parameters VSB MODE\n"); - printk("or51132: Waiting for firmware upload(%s)...\n", - OR51132_VSB_FIRMWARE); - ret = request_firmware(&fw, OR51132_VSB_FIRMWARE, - &state->i2c->dev); - if (ret){ - printk(KERN_WARNING "or51132: No firmware up" - "loaded(timeout or file not found?)\n"); - return ret; - } - /* Set non-punctured clock for VSB */ - state->config->set_ts_params(fe, 0); - break; - case QAM_AUTO: - case QAM_64: - case QAM_256: - dprintk("set_parameters QAM MODE\n"); - printk("or51132: Waiting for firmware upload(%s)...\n", - OR51132_QAM_FIRMWARE); - ret = request_firmware(&fw, OR51132_QAM_FIRMWARE, - &state->i2c->dev); - if (ret){ - printk(KERN_WARNING "or51132: No firmware up" - "loaded(timeout or file not found?)\n"); - return ret; - } - /* Set punctured clock for QAM */ - state->config->set_ts_params(fe, 1); - break; - default: - printk("or51132:Modulation type(%d) UNSUPPORTED\n", - param->u.vsb.modulation); - return -1; - }; - ret = or51132_load_firmware(fe, fw); - release_firmware(fw); - if (ret) { - printk(KERN_WARNING "or51132: Writing firmware to " - "device failed!\n"); - return ret; - } - printk("or51132: Firmware upload complete.\n"); - - state->current_modulation = param->u.vsb.modulation; - or51132_setmode(fe); - } - - dvb_pll_configure(state->config->pll_desc, buf, - param->frequency, 0); - dprintk("set_parameters tuner bytes: 0x%02x 0x%02x " - "0x%02x 0x%02x\n",buf[0],buf[1],buf[2],buf[3]); - if (i2c_writebytes(state, state->config->pll_address ,buf, 4)) - printk(KERN_WARNING "or51132: set_parameters error " - "writing to tuner\n"); - - /* Set to current mode */ - or51132_setmode(fe); - - /* Update current frequency */ - state->current_frequency = param->frequency; - return 0; -} - -static int or51132_read_status(struct dvb_frontend* fe, fe_status_t* status) -{ - struct or51132_state* state = fe->demodulator_priv; - unsigned char rec_buf[2]; - unsigned char snd_buf[2]; - *status = 0; - - /* Receiver Status */ - snd_buf[0]=0x04; - snd_buf[1]=0x00; - msleep(30); /* 30ms */ - if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { - printk(KERN_WARNING "or51132: read_status write error\n"); - return -1; - } - msleep(30); /* 30ms */ - 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[1] & 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; -} - -/* log10-1 table at .5 increments from 1 to 100.5 */ -static unsigned int i100x20log10[] = { - 0, 352, 602, 795, 954, 1088, 1204, 1306, 1397, 1480, - 1556, 1625, 1690, 1750, 1806, 1858, 1908, 1955, 2000, 2042, - 2082, 2121, 2158, 2193, 2227, 2260, 2292, 2322, 2352, 2380, - 2408, 2434, 2460, 2486, 2510, 2534, 2557, 2580, 2602, 2623, - 2644, 2664, 2684, 2704, 2723, 2742, 2760, 2778, 2795, 2813, - 2829, 2846, 2862, 2878, 2894, 2909, 2924, 2939, 2954, 2968, - 2982, 2996, 3010, 3023, 3037, 3050, 3062, 3075, 3088, 3100, - 3112, 3124, 3136, 3148, 3159, 3170, 3182, 3193, 3204, 3214, - 3225, 3236, 3246, 3256, 3266, 3276, 3286, 3296, 3306, 3316, - 3325, 3334, 3344, 3353, 3362, 3371, 3380, 3389, 3397, 3406, - 3415, 3423, 3432, 3440, 3448, 3456, 3464, 3472, 3480, 3488, - 3496, 3504, 3511, 3519, 3526, 3534, 3541, 3549, 3556, 3563, - 3570, 3577, 3584, 3591, 3598, 3605, 3612, 3619, 3625, 3632, - 3639, 3645, 3652, 3658, 3665, 3671, 3677, 3683, 3690, 3696, - 3702, 3708, 3714, 3720, 3726, 3732, 3738, 3744, 3750, 3755, - 3761, 3767, 3772, 3778, 3784, 3789, 3795, 3800, 3806, 3811, - 3816, 3822, 3827, 3832, 3838, 3843, 3848, 3853, 3858, 3863, - 3868, 3874, 3879, 3884, 3888, 3893, 3898, 3903, 3908, 3913, - 3918, 3922, 3927, 3932, 3936, 3941, 3946, 3950, 3955, 3960, - 3964, 3969, 3973, 3978, 3982, 3986, 3991, 3995, 4000, 4004, -}; - -static unsigned int denom[] = {1,1,100,1000,10000,100000,1000000,10000000,100000000}; - -static unsigned int i20Log10(unsigned short val) -{ - unsigned int rntval = 100; - unsigned int tmp = val; - unsigned int exp = 1; - - while(tmp > 100) {tmp /= 100; exp++;} - - val = (2 * val)/denom[exp]; - if (exp > 1) rntval = 2000*exp; - - rntval += i100x20log10[val]; - return rntval; -} - -static int or51132_read_signal_strength(struct dvb_frontend* fe, u16* strength) -{ - struct or51132_state* state = fe->demodulator_priv; - unsigned char rec_buf[2]; - unsigned char snd_buf[2]; - u8 rcvr_stat; - u16 snr_equ; - int usK; - - snd_buf[0]=0x04; - snd_buf[1]=0x02; /* SNR after Equalizer */ - msleep(30); /* 30ms */ - if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { - printk(KERN_WARNING "or51132: read_status write error\n"); - return -1; - } - msleep(30); /* 30ms */ - if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { - printk(KERN_WARNING "or51132: read_status read error\n"); - return -1; - } - snr_equ = rec_buf[0] | (rec_buf[1] << 8); - dprintk("read_signal_strength snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ); - - /* Receiver Status */ - snd_buf[0]=0x04; - snd_buf[1]=0x00; - msleep(30); /* 30ms */ - if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { - printk(KERN_WARNING "or51132: read_signal_strength read_status write error\n"); - return -1; - } - msleep(30); /* 30ms */ - if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { - printk(KERN_WARNING "or51132: read_signal_strength read_status read error\n"); - return -1; - } - dprintk("read_signal_strength read_status %x %x\n",rec_buf[0],rec_buf[1]); - rcvr_stat = rec_buf[1]; - usK = (rcvr_stat & 0x10) ? 3 : 0; - - /* The value reported back from the frontend will be FFFF=100% 0000=0% */ - *strength = (((8952 - i20Log10(snr_equ) - usK*100)/3+5)*65535)/1000; - dprintk("read_signal_strength %i\n",*strength); - - return 0; -} - -static int or51132_read_snr(struct dvb_frontend* fe, u16* snr) -{ - struct or51132_state* state = fe->demodulator_priv; - unsigned char rec_buf[2]; - unsigned char snd_buf[2]; - u16 snr_equ; - - snd_buf[0]=0x04; - snd_buf[1]=0x02; /* SNR after Equalizer */ - msleep(30); /* 30ms */ - if (i2c_writebytes(state,state->config->demod_address,snd_buf,2)) { - printk(KERN_WARNING "or51132: read_snr write error\n"); - return -1; - } - msleep(30); /* 30ms */ - if (i2c_readbytes(state,state->config->demod_address,rec_buf,2)) { - printk(KERN_WARNING "or51132: read_snr dvr read error\n"); - return -1; - } - snr_equ = rec_buf[0] | (rec_buf[1] << 8); - dprintk("read_snr snr_equ %x %x (%i)\n",rec_buf[0],rec_buf[1],snr_equ); - - *snr = 0xFFFF - snr_equ; - dprintk("read_snr %i\n",*snr); - - return 0; -} - -static int or51132_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fe_tune_settings) -{ - fe_tune_settings->min_delay_ms = 500; - fe_tune_settings->step_size = 0; - fe_tune_settings->max_drift = 0; - - return 0; -} - -static void or51132_release(struct dvb_frontend* fe) -{ - struct or51132_state* state = fe->demodulator_priv; - kfree(state); -} - -static struct dvb_frontend_ops or51132_ops; - -struct dvb_frontend* or51132_attach(const struct or51132_config* config, - struct i2c_adapter* i2c) -{ - struct or51132_state* state = NULL; - - /* Allocate memory for the internal state */ - state = kmalloc(sizeof(struct or51132_state), GFP_KERNEL); - if (state == NULL) - goto error; - - /* Setup the state */ - state->config = config; - state->i2c = i2c; - memcpy(&state->ops, &or51132_ops, sizeof(struct dvb_frontend_ops)); - state->current_frequency = -1; - state->current_modulation = -1; - - /* Create dvb_frontend */ - state->frontend.ops = &state->ops; - state->frontend.demodulator_priv = state; - return &state->frontend; - -error: - if (state) - kfree(state); - return NULL; -} - -static struct dvb_frontend_ops or51132_ops = { - - .info = { - .name = "Oren OR51132 VSB/QAM Frontend", - .type = FE_ATSC, - .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_QAM_64 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO | - FE_CAN_8VSB - }, - - .release = or51132_release, - - .init = or51132_init, - .sleep = or51132_sleep, - - .set_frontend = or51132_set_parameters, - .get_tune_settings = or51132_get_tune_settings, - - .read_status = or51132_read_status, - .read_ber = or51132_read_ber, - .read_signal_strength = or51132_read_signal_strength, - .read_snr = or51132_read_snr, - .read_ucblocks = or51132_read_ucblocks, -}; - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - -MODULE_DESCRIPTION("OR51132 ATSC [pcHDTV HD-3000] (8VSB & ITU J83 AnnexB FEC QAM64/256) Demodulator Driver"); -MODULE_AUTHOR("Kirk Lapray"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(or51132_attach); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ |