diff options
Diffstat (limited to 'drivers/media/dvb/frontends/mt312.c')
| -rw-r--r-- | drivers/media/dvb/frontends/mt312.c | 90 |
1 files changed, 82 insertions, 8 deletions
diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c index 1f478c8c0d4a..e17a36180f9c 100644 --- a/drivers/media/dvb/frontends/mt312.c +++ b/drivers/media/dvb/frontends/mt312.c @@ -1,7 +1,8 @@ /* - Driver for Zarlink VP310/MT312 Satellite Channel Decoder + Driver for Zarlink VP310/MT312/ZL10313 Satellite Channel Decoder Copyright (C) 2003 Andreas Oberritter <obi@linuxtv.org> + Copyright (C) 2008 Matthias Schwarzott <zzam@gentoo.org> 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 @@ -55,6 +56,7 @@ static int debug; } while (0) #define MT312_PLL_CLK 10000000UL /* 10 MHz */ +#define MT312_PLL_CLK_10_111 10111000UL /* 10.111 MHz */ static int mt312_read(struct mt312_state *state, const enum mt312_reg_addr reg, u8 *buf, const size_t count) @@ -264,6 +266,32 @@ static int mt312_initfe(struct dvb_frontend *fe) return ret; } + switch (state->id) { + case ID_ZL10313: + /* enable ADC */ + ret = mt312_writereg(state, GPP_CTRL, 0x80); + if (ret < 0) + return ret; + + /* configure ZL10313 for optimal ADC performance */ + buf[0] = 0x80; + buf[1] = 0xB0; + ret = mt312_write(state, HW_CTRL, buf, 2); + if (ret < 0) + return ret; + + /* enable MPEG output and ADCs */ + ret = mt312_writereg(state, HW_CTRL, 0x00); + if (ret < 0) + return ret; + + ret = mt312_writereg(state, MPEG_CTRL, 0x00); + if (ret < 0) + return ret; + + break; + } + /* SYS_CLK */ buf[0] = mt312_div(state->xtal * state->freq_mult * 2, 1000000); @@ -278,7 +306,17 @@ static int mt312_initfe(struct dvb_frontend *fe) if (ret < 0) return ret; - ret = mt312_writereg(state, OP_CTRL, 0x53); + /* different MOCLK polarity */ + switch (state->id) { + case ID_ZL10313: + buf[0] = 0x33; + break; + default: + buf[0] = 0x53; + break; + } + + ret = mt312_writereg(state, OP_CTRL, buf[0]); if (ret < 0) return ret; @@ -552,6 +590,7 @@ static int mt312_set_frontend(struct dvb_frontend *fe, break; case ID_MT312: + case ID_ZL10313: break; default: @@ -617,11 +656,29 @@ static int mt312_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) { struct mt312_state *state = fe->demodulator_priv; - if (enable) { - return mt312_writereg(state, GPP_CTRL, 0x40); - } else { - return mt312_writereg(state, GPP_CTRL, 0x00); + u8 val = 0x00; + int ret; + + switch (state->id) { + case ID_ZL10313: + ret = mt312_readreg(state, GPP_CTRL, &val); + if (ret < 0) + goto error; + + /* preserve this bit to not accidently shutdown ADC */ + val &= 0x80; + break; } + + if (enable) + val |= 0x40; + else + val &= ~0x40; + + ret = mt312_writereg(state, GPP_CTRL, val); + +error: + return ret; } static int mt312_sleep(struct dvb_frontend *fe) @@ -635,6 +692,18 @@ static int mt312_sleep(struct dvb_frontend *fe) if (ret < 0) return ret; + if (state->id == ID_ZL10313) { + /* reset ADC */ + ret = mt312_writereg(state, GPP_CTRL, 0x00); + if (ret < 0) + return ret; + + /* full shutdown of ADCs, mpeg bus tristated */ + ret = mt312_writereg(state, HW_CTRL, 0x0d); + if (ret < 0) + return ret; + } + ret = mt312_readreg(state, CONFIG, &config); if (ret < 0) return ret; @@ -736,8 +805,13 @@ struct dvb_frontend *vp310_mt312_attach(const struct mt312_config *config, state->xtal = MT312_PLL_CLK; state->freq_mult = 6; break; + case ID_ZL10313: + strcpy(state->frontend.ops.info.name, "Zarlink ZL10313 DVB-S"); + state->xtal = MT312_PLL_CLK_10_111; + state->freq_mult = 9; + break; default: - printk(KERN_WARNING "Only Zarlink VP310/MT312" + printk(KERN_WARNING "Only Zarlink VP310/MT312/ZL10313" " are supported chips.\n"); goto error; } @@ -753,7 +827,7 @@ EXPORT_SYMBOL(vp310_mt312_attach); module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); -MODULE_DESCRIPTION("Zarlink VP310/MT312 DVB-S Demodulator driver"); +MODULE_DESCRIPTION("Zarlink VP310/MT312/ZL10313 DVB-S Demodulator driver"); MODULE_AUTHOR("Andreas Oberritter <obi@linuxtv.org>"); MODULE_LICENSE("GPL"); |