diff options
Diffstat (limited to 'drivers/media/dvb/frontends/mb86a20s.c')
| -rw-r--r-- | drivers/media/dvb/frontends/mb86a20s.c | 639 |
1 files changed, 0 insertions, 639 deletions
diff --git a/drivers/media/dvb/frontends/mb86a20s.c b/drivers/media/dvb/frontends/mb86a20s.c deleted file mode 100644 index cc4acd2f920..00000000000 --- a/drivers/media/dvb/frontends/mb86a20s.c +++ /dev/null @@ -1,639 +0,0 @@ -/* - * Fujitu mb86a20s ISDB-T/ISDB-Tsb Module driver - * - * Copyright (C) 2010 Mauro Carvalho Chehab <mchehab@redhat.com> - * Copyright (C) 2009-2010 Douglas Landgraf <dougsland@redhat.com> - * - * FIXME: Need to port to DVB v5.2 API - * - * 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. - * - * 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. - */ - -#include <linux/kernel.h> -#include <asm/div64.h> - -#include "dvb_frontend.h" -#include "mb86a20s.h" - -static int debug = 1; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)"); - -#define rc(args...) do { \ - printk(KERN_ERR "mb86a20s: " args); \ -} while (0) - -#define dprintk(args...) \ - do { \ - if (debug) { \ - printk(KERN_DEBUG "mb86a20s: %s: ", __func__); \ - printk(args); \ - } \ - } while (0) - -struct mb86a20s_state { - struct i2c_adapter *i2c; - const struct mb86a20s_config *config; - - struct dvb_frontend frontend; - - bool need_init; -}; - -struct regdata { - u8 reg; - u8 data; -}; - -/* - * Initialization sequence: Use whatevere default values that PV SBTVD - * does on its initialisation, obtained via USB snoop - */ -static struct regdata mb86a20s_init[] = { - { 0x70, 0x0f }, - { 0x70, 0xff }, - { 0x08, 0x01 }, - { 0x09, 0x3e }, - { 0x50, 0xd1 }, - { 0x51, 0x22 }, - { 0x39, 0x01 }, - { 0x71, 0x00 }, - { 0x28, 0x2a }, - { 0x29, 0x00 }, - { 0x2a, 0xff }, - { 0x2b, 0x80 }, - { 0x28, 0x20 }, - { 0x29, 0x33 }, - { 0x2a, 0xdf }, - { 0x2b, 0xa9 }, - { 0x3b, 0x21 }, - { 0x3c, 0x3a }, - { 0x01, 0x0d }, - { 0x04, 0x08 }, - { 0x05, 0x05 }, - { 0x04, 0x0e }, - { 0x05, 0x00 }, - { 0x04, 0x0f }, - { 0x05, 0x14 }, - { 0x04, 0x0b }, - { 0x05, 0x8c }, - { 0x04, 0x00 }, - { 0x05, 0x00 }, - { 0x04, 0x01 }, - { 0x05, 0x07 }, - { 0x04, 0x02 }, - { 0x05, 0x0f }, - { 0x04, 0x03 }, - { 0x05, 0xa0 }, - { 0x04, 0x09 }, - { 0x05, 0x00 }, - { 0x04, 0x0a }, - { 0x05, 0xff }, - { 0x04, 0x27 }, - { 0x05, 0x64 }, - { 0x04, 0x28 }, - { 0x05, 0x00 }, - { 0x04, 0x1e }, - { 0x05, 0xff }, - { 0x04, 0x29 }, - { 0x05, 0x0a }, - { 0x04, 0x32 }, - { 0x05, 0x0a }, - { 0x04, 0x14 }, - { 0x05, 0x02 }, - { 0x04, 0x04 }, - { 0x05, 0x00 }, - { 0x04, 0x05 }, - { 0x05, 0x22 }, - { 0x04, 0x06 }, - { 0x05, 0x0e }, - { 0x04, 0x07 }, - { 0x05, 0xd8 }, - { 0x04, 0x12 }, - { 0x05, 0x00 }, - { 0x04, 0x13 }, - { 0x05, 0xff }, - { 0x52, 0x01 }, - { 0x50, 0xa7 }, - { 0x51, 0x00 }, - { 0x50, 0xa8 }, - { 0x51, 0xff }, - { 0x50, 0xa9 }, - { 0x51, 0xff }, - { 0x50, 0xaa }, - { 0x51, 0x00 }, - { 0x50, 0xab }, - { 0x51, 0xff }, - { 0x50, 0xac }, - { 0x51, 0xff }, - { 0x50, 0xad }, - { 0x51, 0x00 }, - { 0x50, 0xae }, - { 0x51, 0xff }, - { 0x50, 0xaf }, - { 0x51, 0xff }, - { 0x5e, 0x07 }, - { 0x50, 0xdc }, - { 0x51, 0x01 }, - { 0x50, 0xdd }, - { 0x51, 0xf4 }, - { 0x50, 0xde }, - { 0x51, 0x01 }, - { 0x50, 0xdf }, - { 0x51, 0xf4 }, - { 0x50, 0xe0 }, - { 0x51, 0x01 }, - { 0x50, 0xe1 }, - { 0x51, 0xf4 }, - { 0x50, 0xb0 }, - { 0x51, 0x07 }, - { 0x50, 0xb2 }, - { 0x51, 0xff }, - { 0x50, 0xb3 }, - { 0x51, 0xff }, - { 0x50, 0xb4 }, - { 0x51, 0xff }, - { 0x50, 0xb5 }, - { 0x51, 0xff }, - { 0x50, 0xb6 }, - { 0x51, 0xff }, - { 0x50, 0xb7 }, - { 0x51, 0xff }, - { 0x50, 0x50 }, - { 0x51, 0x02 }, - { 0x50, 0x51 }, - { 0x51, 0x04 }, - { 0x45, 0x04 }, - { 0x48, 0x04 }, - { 0x50, 0xd5 }, - { 0x51, 0x01 }, /* Serial */ - { 0x50, 0xd6 }, - { 0x51, 0x1f }, - { 0x50, 0xd2 }, - { 0x51, 0x03 }, - { 0x50, 0xd7 }, - { 0x51, 0x3f }, - { 0x1c, 0x01 }, - { 0x28, 0x06 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x03 }, - { 0x28, 0x07 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x0d }, - { 0x28, 0x08 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x02 }, - { 0x28, 0x09 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x01 }, - { 0x28, 0x0a }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x21 }, - { 0x28, 0x0b }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x29 }, - { 0x28, 0x0c }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x16 }, - { 0x28, 0x0d }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x31 }, - { 0x28, 0x0e }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x0e }, - { 0x28, 0x0f }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x4e }, - { 0x28, 0x10 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x46 }, - { 0x28, 0x11 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x0f }, - { 0x28, 0x12 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x56 }, - { 0x28, 0x13 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x35 }, - { 0x28, 0x14 }, - { 0x29, 0x00 }, - { 0x2a, 0x01 }, - { 0x2b, 0xbe }, - { 0x28, 0x15 }, - { 0x29, 0x00 }, - { 0x2a, 0x01 }, - { 0x2b, 0x84 }, - { 0x28, 0x16 }, - { 0x29, 0x00 }, - { 0x2a, 0x03 }, - { 0x2b, 0xee }, - { 0x28, 0x17 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x98 }, - { 0x28, 0x18 }, - { 0x29, 0x00 }, - { 0x2a, 0x00 }, - { 0x2b, 0x9f }, - { 0x28, 0x19 }, - { 0x29, 0x00 }, - { 0x2a, 0x07 }, - { 0x2b, 0xb2 }, - { 0x28, 0x1a }, - { 0x29, 0x00 }, - { 0x2a, 0x06 }, - { 0x2b, 0xc2 }, - { 0x28, 0x1b }, - { 0x29, 0x00 }, - { 0x2a, 0x07 }, - { 0x2b, 0x4a }, - { 0x28, 0x1c }, - { 0x29, 0x00 }, - { 0x2a, 0x01 }, - { 0x2b, 0xbc }, - { 0x28, 0x1d }, - { 0x29, 0x00 }, - { 0x2a, 0x04 }, - { 0x2b, 0xba }, - { 0x28, 0x1e }, - { 0x29, 0x00 }, - { 0x2a, 0x06 }, - { 0x2b, 0x14 }, - { 0x50, 0x1e }, - { 0x51, 0x5d }, - { 0x50, 0x22 }, - { 0x51, 0x00 }, - { 0x50, 0x23 }, - { 0x51, 0xc8 }, - { 0x50, 0x24 }, - { 0x51, 0x00 }, - { 0x50, 0x25 }, - { 0x51, 0xf0 }, - { 0x50, 0x26 }, - { 0x51, 0x00 }, - { 0x50, 0x27 }, - { 0x51, 0xc3 }, - { 0x50, 0x39 }, - { 0x51, 0x02 }, - { 0x50, 0xd5 }, - { 0x51, 0x01 }, - { 0xd0, 0x00 }, -}; - -static struct regdata mb86a20s_reset_reception[] = { - { 0x70, 0xf0 }, - { 0x70, 0xff }, - { 0x08, 0x01 }, - { 0x08, 0x00 }, -}; - -static int mb86a20s_i2c_writereg(struct mb86a20s_state *state, - u8 i2c_addr, int reg, int data) -{ - u8 buf[] = { reg, data }; - struct i2c_msg msg = { - .addr = i2c_addr, .flags = 0, .buf = buf, .len = 2 - }; - int rc; - - rc = i2c_transfer(state->i2c, &msg, 1); - if (rc != 1) { - printk("%s: writereg error (rc == %i, reg == 0x%02x," - " data == 0x%02x)\n", __func__, rc, reg, data); - return rc; - } - - return 0; -} - -static int mb86a20s_i2c_writeregdata(struct mb86a20s_state *state, - u8 i2c_addr, struct regdata *rd, int size) -{ - int i, rc; - - for (i = 0; i < size; i++) { - rc = mb86a20s_i2c_writereg(state, i2c_addr, rd[i].reg, - rd[i].data); - if (rc < 0) - return rc; - } - return 0; -} - -static int mb86a20s_i2c_readreg(struct mb86a20s_state *state, - u8 i2c_addr, u8 reg) -{ - u8 val; - int rc; - struct i2c_msg msg[] = { - { .addr = i2c_addr, .flags = 0, .buf = ®, .len = 1 }, - { .addr = i2c_addr, .flags = I2C_M_RD, .buf = &val, .len = 1 } - }; - - rc = i2c_transfer(state->i2c, msg, 2); - - if (rc != 2) { - rc("%s: reg=0x%x (error=%d)\n", __func__, reg, rc); - return rc; - } - - return val; -} - -#define mb86a20s_readreg(state, reg) \ - mb86a20s_i2c_readreg(state, state->config->demod_address, reg) -#define mb86a20s_writereg(state, reg, val) \ - mb86a20s_i2c_writereg(state, state->config->demod_address, reg, val) -#define mb86a20s_writeregdata(state, regdata) \ - mb86a20s_i2c_writeregdata(state, state->config->demod_address, \ - regdata, ARRAY_SIZE(regdata)) - -static int mb86a20s_initfe(struct dvb_frontend *fe) -{ - struct mb86a20s_state *state = fe->demodulator_priv; - int rc; - u8 regD5 = 1; - - dprintk("\n"); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - - /* Initialize the frontend */ - rc = mb86a20s_writeregdata(state, mb86a20s_init); - if (rc < 0) - goto err; - - if (!state->config->is_serial) { - regD5 &= ~1; - - rc = mb86a20s_writereg(state, 0x50, 0xd5); - if (rc < 0) - goto err; - rc = mb86a20s_writereg(state, 0x51, regD5); - if (rc < 0) - goto err; - } - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - -err: - if (rc < 0) { - state->need_init = true; - printk(KERN_INFO "mb86a20s: Init failed. Will try again later\n"); - } else { - state->need_init = false; - dprintk("Initialization succeded.\n"); - } - return rc; -} - -static int mb86a20s_read_signal_strength(struct dvb_frontend *fe, u16 *strength) -{ - struct mb86a20s_state *state = fe->demodulator_priv; - unsigned rf_max, rf_min, rf; - u8 val; - - dprintk("\n"); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - - /* Does a binary search to get RF strength */ - rf_max = 0xfff; - rf_min = 0; - do { - rf = (rf_max + rf_min) / 2; - mb86a20s_writereg(state, 0x04, 0x1f); - mb86a20s_writereg(state, 0x05, rf >> 8); - mb86a20s_writereg(state, 0x04, 0x20); - mb86a20s_writereg(state, 0x04, rf); - - val = mb86a20s_readreg(state, 0x02); - if (val & 0x08) - rf_min = (rf_max + rf_min) / 2; - else - rf_max = (rf_max + rf_min) / 2; - if (rf_max - rf_min < 4) { - *strength = (((rf_max + rf_min) / 2) * 65535) / 4095; - break; - } - } while (1); - - dprintk("signal strength = %d\n", *strength); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - return 0; -} - -static int mb86a20s_read_status(struct dvb_frontend *fe, fe_status_t *status) -{ - struct mb86a20s_state *state = fe->demodulator_priv; - u8 val; - - dprintk("\n"); - *status = 0; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - val = mb86a20s_readreg(state, 0x0a) & 0xf; - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - if (val >= 2) - *status |= FE_HAS_SIGNAL; - - if (val >= 4) - *status |= FE_HAS_CARRIER; - - if (val >= 5) - *status |= FE_HAS_VITERBI; - - if (val >= 7) - *status |= FE_HAS_SYNC; - - if (val >= 8) /* Maybe 9? */ - *status |= FE_HAS_LOCK; - - dprintk("val = %d, status = 0x%02x\n", val, *status); - - return 0; -} - -static int mb86a20s_set_frontend(struct dvb_frontend *fe, - struct dvb_frontend_parameters *p) -{ - struct mb86a20s_state *state = fe->demodulator_priv; - int rc; - - dprintk("\n"); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - dprintk("Calling tuner set parameters\n"); - fe->ops.tuner_ops.set_params(fe, p); - - /* - * Make it more reliable: if, for some reason, the initial - * device initialization doesn't happen, initialize it when - * a SBTVD parameters are adjusted. - * - * Unfortunately, due to a hard to track bug at tda829x/tda18271, - * the agc callback logic is not called during DVB attach time, - * causing mb86a20s to not be initialized with Kworld SBTVD. - * So, this hack is needed, in order to make Kworld SBTVD to work. - */ - if (state->need_init) - mb86a20s_initfe(fe); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - rc = mb86a20s_writeregdata(state, mb86a20s_reset_reception); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - return rc; -} - -static int mb86a20s_get_frontend(struct dvb_frontend *fe, - struct dvb_frontend_parameters *p) -{ - - /* FIXME: For now, it does nothing */ - - fe->dtv_property_cache.bandwidth_hz = 6000000; - fe->dtv_property_cache.transmission_mode = TRANSMISSION_MODE_AUTO; - fe->dtv_property_cache.guard_interval = GUARD_INTERVAL_AUTO; - fe->dtv_property_cache.isdbt_partial_reception = 0; - - return 0; -} - -static int mb86a20s_tune(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params, - unsigned int mode_flags, - unsigned int *delay, - fe_status_t *status) -{ - int rc = 0; - - dprintk("\n"); - - if (params != NULL) - rc = mb86a20s_set_frontend(fe, params); - - if (!(mode_flags & FE_TUNE_MODE_ONESHOT)) - mb86a20s_read_status(fe, status); - - return rc; -} - -static void mb86a20s_release(struct dvb_frontend *fe) -{ - struct mb86a20s_state *state = fe->demodulator_priv; - - dprintk("\n"); - - kfree(state); -} - -static struct dvb_frontend_ops mb86a20s_ops; - -struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config, - struct i2c_adapter *i2c) -{ - u8 rev; - - /* allocate memory for the internal state */ - struct mb86a20s_state *state = - kzalloc(sizeof(struct mb86a20s_state), GFP_KERNEL); - - dprintk("\n"); - if (state == NULL) { - rc("Unable to kzalloc\n"); - goto error; - } - - /* setup the state */ - state->config = config; - state->i2c = i2c; - - /* create dvb_frontend */ - memcpy(&state->frontend.ops, &mb86a20s_ops, - sizeof(struct dvb_frontend_ops)); - state->frontend.demodulator_priv = state; - - /* Check if it is a mb86a20s frontend */ - rev = mb86a20s_readreg(state, 0); - - if (rev == 0x13) { - printk(KERN_INFO "Detected a Fujitsu mb86a20s frontend\n"); - } else { - printk(KERN_ERR "Frontend revision %d is unknown - aborting.\n", - rev); - goto error; - } - - return &state->frontend; - -error: - kfree(state); - return NULL; -} -EXPORT_SYMBOL(mb86a20s_attach); - -static struct dvb_frontend_ops mb86a20s_ops = { - /* Use dib8000 values per default */ - .info = { - .name = "Fujitsu mb86A20s", - .type = FE_OFDM, - .caps = FE_CAN_INVERSION_AUTO | FE_CAN_RECOVER | - 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_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | - FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_QAM_AUTO | - FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO, - /* Actually, those values depend on the used tuner */ - .frequency_min = 45000000, - .frequency_max = 864000000, - .frequency_stepsize = 62500, - }, - - .release = mb86a20s_release, - - .init = mb86a20s_initfe, - .set_frontend = mb86a20s_set_frontend, - .get_frontend = mb86a20s_get_frontend, - .read_status = mb86a20s_read_status, - .read_signal_strength = mb86a20s_read_signal_strength, - .tune = mb86a20s_tune, -}; - -MODULE_DESCRIPTION("DVB Frontend module for Fujitsu mb86A20s hardware"); -MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); -MODULE_LICENSE("GPL"); |