X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fmedia%2Fdvb%2Ffrontends%2Fdvb-pll.c;h=4c8a506479b4f1eb7dc11a8eb5be306b2f13559b;hb=55c05b6d226f68266d1f88dd81795b04d096b1c8;hp=791706ec1da39a5b4ca528a08162ee19f9f70a00;hpb=36a557d1f48669c57f59e37d9334400a29e4e53c;p=linux-2.6 diff --git a/drivers/media/dvb/frontends/dvb-pll.c b/drivers/media/dvb/frontends/dvb-pll.c index 791706ec1d..4c8a506479 100644 --- a/drivers/media/dvb/frontends/dvb-pll.c +++ b/drivers/media/dvb/frontends/dvb-pll.c @@ -194,11 +194,11 @@ struct dvb_pll_desc dvb_pll_tda665x = { { 253834000, 36249333, 166667, 0xca, 0x62 /* 011 0 0 0 10 */ }, { 383834000, 36249333, 166667, 0xca, 0xa2 /* 101 0 0 0 10 */ }, { 443834000, 36249333, 166667, 0xca, 0xc2 /* 110 0 0 0 10 */ }, - { 444000000, 36249333, 166667, 0xca, 0xc3 /* 110 0 0 0 11 */ }, - { 583834000, 36249333, 166667, 0xca, 0x63 /* 011 0 0 0 11 */ }, - { 793834000, 36249333, 166667, 0xca, 0xa3 /* 101 0 0 0 11 */ }, - { 444834000, 36249333, 166667, 0xca, 0xc3 /* 110 0 0 0 11 */ }, - { 861000000, 36249333, 166667, 0xca, 0xe3 /* 111 0 0 0 11 */ }, + { 444000000, 36249333, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ }, + { 583834000, 36249333, 166667, 0xca, 0x64 /* 011 0 0 1 00 */ }, + { 793834000, 36249333, 166667, 0xca, 0xa4 /* 101 0 0 1 00 */ }, + { 444834000, 36249333, 166667, 0xca, 0xc4 /* 110 0 0 1 00 */ }, + { 861000000, 36249333, 166667, 0xca, 0xe4 /* 111 0 0 1 00 */ }, } }; EXPORT_SYMBOL(dvb_pll_tda665x); @@ -227,10 +227,10 @@ struct dvb_pll_desc dvb_pll_tua6034 = { EXPORT_SYMBOL(dvb_pll_tua6034); /* Infineon TUA6034 - * used in LG TDVS H061F and LG TDVS H062F + * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F */ -struct dvb_pll_desc dvb_pll_tdvs_tua6034 = { - .name = "LG/Infineon TUA6034", +struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = { + .name = "LG TDVS-H06xF", .min = 54000000, .max = 863000000, .count = 3, @@ -240,7 +240,7 @@ struct dvb_pll_desc dvb_pll_tdvs_tua6034 = { { 999999999, 44000000, 62500, 0xce, 0x04 }, }, }; -EXPORT_SYMBOL(dvb_pll_tdvs_tua6034); +EXPORT_SYMBOL(dvb_pll_lg_tdvs_h06xf); /* Philips FMD1216ME * used in Medion Hybrid PCMCIA card and USB Box @@ -419,6 +419,19 @@ struct dvb_pll_desc dvb_pll_thomson_fe6600 = { }; EXPORT_SYMBOL(dvb_pll_thomson_fe6600); +struct dvb_pll_priv { + /* i2c details */ + int pll_i2c_address; + struct i2c_adapter *i2c; + + /* the PLL descriptor */ + struct dvb_pll_desc *pll_desc; + + /* cached frequency/bandwidth */ + u32 frequency; + u32 bandwidth; +}; + /* ----------------------------------------------------------- */ /* code */ @@ -443,7 +456,8 @@ int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf, if (debug) printk("pll: %s: freq=%d bw=%d | i=%d/%d\n", desc->name, freq, bandwidth, i, desc->count); - BUG_ON(i == desc->count); + if (i == desc->count) + return -EINVAL; div = (freq + desc->entries[i].offset) / desc->entries[i].stepsize; buf[0] = div >> 8; @@ -462,6 +476,178 @@ int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf, } EXPORT_SYMBOL(dvb_pll_configure); +static int dvb_pll_release(struct dvb_frontend *fe) +{ + if (fe->tuner_priv) + kfree(fe->tuner_priv); + fe->tuner_priv = NULL; + return 0; +} + +static int dvb_pll_sleep(struct dvb_frontend *fe) +{ + struct dvb_pll_priv *priv = fe->tuner_priv; + u8 buf[4]; + struct i2c_msg msg = + { .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) }; + int i; + int result; + + for (i = 0; i < priv->pll_desc->count; i++) { + if (priv->pll_desc->entries[i].limit == 0) + break; + } + if (i == priv->pll_desc->count) + return 0; + + buf[0] = 0; + buf[1] = 0; + buf[2] = priv->pll_desc->entries[i].config; + buf[3] = priv->pll_desc->entries[i].cb; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) { + return result; + } + + return 0; +} + +static int dvb_pll_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) +{ + struct dvb_pll_priv *priv = fe->tuner_priv; + u8 buf[4]; + struct i2c_msg msg = + { .addr = priv->pll_i2c_address, .flags = 0, .buf = buf, .len = sizeof(buf) }; + int result; + u32 div; + int i; + u32 bandwidth = 0; + + if (priv->i2c == NULL) + return -EINVAL; + + // DVBT bandwidth only just now + if (fe->ops.info.type == FE_OFDM) { + bandwidth = params->u.ofdm.bandwidth; + } + + if ((result = dvb_pll_configure(priv->pll_desc, buf, params->frequency, bandwidth)) != 0) + return result; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) { + return result; + } + + // calculate the frequency we set it to + for (i = 0; i < priv->pll_desc->count; i++) { + if (params->frequency > priv->pll_desc->entries[i].limit) + continue; + break; + } + div = (params->frequency + priv->pll_desc->entries[i].offset) / priv->pll_desc->entries[i].stepsize; + priv->frequency = (div * priv->pll_desc->entries[i].stepsize) - priv->pll_desc->entries[i].offset; + priv->bandwidth = bandwidth; + + return 0; +} + +static int dvb_pll_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parameters *params, u8 *buf, int buf_len) +{ + struct dvb_pll_priv *priv = fe->tuner_priv; + int result; + u32 div; + int i; + u32 bandwidth = 0; + + if (buf_len < 5) + return -EINVAL; + + // DVBT bandwidth only just now + if (fe->ops.info.type == FE_OFDM) { + bandwidth = params->u.ofdm.bandwidth; + } + + if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params->frequency, bandwidth)) != 0) + return result; + buf[0] = priv->pll_i2c_address; + + // calculate the frequency we set it to + for (i = 0; i < priv->pll_desc->count; i++) { + if (params->frequency > priv->pll_desc->entries[i].limit) + continue; + break; + } + div = (params->frequency + priv->pll_desc->entries[i].offset) / priv->pll_desc->entries[i].stepsize; + priv->frequency = (div * priv->pll_desc->entries[i].stepsize) - priv->pll_desc->entries[i].offset; + priv->bandwidth = bandwidth; + + return 5; +} + +static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency) +{ + struct dvb_pll_priv *priv = fe->tuner_priv; + *frequency = priv->frequency; + return 0; +} + +static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) +{ + struct dvb_pll_priv *priv = fe->tuner_priv; + *bandwidth = priv->bandwidth; + return 0; +} + +static struct dvb_tuner_ops dvb_pll_tuner_ops = { + .release = dvb_pll_release, + .sleep = dvb_pll_sleep, + .set_params = dvb_pll_set_params, + .calc_regs = dvb_pll_calc_regs, + .get_frequency = dvb_pll_get_frequency, + .get_bandwidth = dvb_pll_get_bandwidth, +}; + +int dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, struct i2c_adapter *i2c, struct dvb_pll_desc *desc) +{ + u8 b1 [] = { 0 }; + struct i2c_msg msg [] = { { .addr = pll_addr, .flags = 0, .buf = NULL, .len = 0 }, + { .addr = pll_addr, .flags = I2C_M_RD, .buf = b1, .len = 1 } }; + struct dvb_pll_priv *priv = NULL; + int ret; + + if (i2c != NULL) { + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + ret = i2c_transfer (i2c, msg, 2); + if (ret != 2) + return -1; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + } + + priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL); + if (priv == NULL) + return -ENOMEM; + + priv->pll_i2c_address = pll_addr; + priv->i2c = i2c; + priv->pll_desc = desc; + + memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops, sizeof(struct dvb_tuner_ops)); + strncpy(fe->ops.tuner_ops.info.name, desc->name, 128); + fe->ops.tuner_ops.info.frequency_min = desc->min; + fe->ops.tuner_ops.info.frequency_min = desc->max; + + fe->tuner_priv = priv; + return 0; +} +EXPORT_SYMBOL(dvb_pll_attach); + MODULE_DESCRIPTION("dvb pll library"); MODULE_AUTHOR("Gerd Knorr"); MODULE_LICENSE("GPL");