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