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Diffstat (limited to 'drivers/media/dvb/frontends/mt2131.c')
-rw-r--r--drivers/media/dvb/frontends/mt2131.c314
1 files changed, 0 insertions, 314 deletions
diff --git a/drivers/media/dvb/frontends/mt2131.c b/drivers/media/dvb/frontends/mt2131.c
deleted file mode 100644
index e254bcfc2efb..000000000000
--- a/drivers/media/dvb/frontends/mt2131.c
+++ /dev/null
@@ -1,314 +0,0 @@
-/*
- * Driver for Microtune MT2131 "QAM/8VSB single chip tuner"
- *
- * Copyright (c) 2006 Steven Toth <stoth@hauppauge.com>
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/dvb/frontend.h>
-#include <linux/i2c.h>
-
-#include "dvb_frontend.h"
-
-#include "mt2131.h"
-#include "mt2131_priv.h"
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
-
-#define dprintk(level,fmt, arg...) if (debug >= level) \
- printk(KERN_INFO "%s: " fmt, "mt2131", ## arg)
-
-static u8 mt2131_config1[] = {
- 0x01,
- 0x50, 0x00, 0x50, 0x80, 0x00, 0x49, 0xfa, 0x88,
- 0x08, 0x77, 0x41, 0x04, 0x00, 0x00, 0x00, 0x32,
- 0x7f, 0xda, 0x4c, 0x00, 0x10, 0xaa, 0x78, 0x80,
- 0xff, 0x68, 0xa0, 0xff, 0xdd, 0x00, 0x00
-};
-
-static u8 mt2131_config2[] = {
- 0x10,
- 0x7f, 0xc8, 0x0a, 0x5f, 0x00, 0x04
-};
-
-static int mt2131_readreg(struct mt2131_priv *priv, u8 reg, u8 *val)
-{
- struct i2c_msg msg[2] = {
- { .addr = priv->cfg->i2c_address, .flags = 0,
- .buf = &reg, .len = 1 },
- { .addr = priv->cfg->i2c_address, .flags = I2C_M_RD,
- .buf = val, .len = 1 },
- };
-
- if (i2c_transfer(priv->i2c, msg, 2) != 2) {
- printk(KERN_WARNING "mt2131 I2C read failed\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int mt2131_writereg(struct mt2131_priv *priv, u8 reg, u8 val)
-{
- u8 buf[2] = { reg, val };
- struct i2c_msg msg = { .addr = priv->cfg->i2c_address, .flags = 0,
- .buf = buf, .len = 2 };
-
- if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
- printk(KERN_WARNING "mt2131 I2C write failed\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int mt2131_writeregs(struct mt2131_priv *priv,u8 *buf, u8 len)
-{
- struct i2c_msg msg = { .addr = priv->cfg->i2c_address,
- .flags = 0, .buf = buf, .len = len };
-
- if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
- printk(KERN_WARNING "mt2131 I2C write failed (len=%i)\n",
- (int)len);
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int mt2131_set_params(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *params)
-{
- struct mt2131_priv *priv;
- int ret=0, i;
- u32 freq;
- u8 if_band_center;
- u32 f_lo1, f_lo2;
- u32 div1, num1, div2, num2;
- u8 b[8];
- u8 lockval = 0;
-
- priv = fe->tuner_priv;
- if (fe->ops.info.type == FE_OFDM)
- priv->bandwidth = params->u.ofdm.bandwidth;
- else
- priv->bandwidth = 0;
-
- freq = params->frequency / 1000; // Hz -> kHz
- dprintk(1, "%s() freq=%d\n", __func__, freq);
-
- f_lo1 = freq + MT2131_IF1 * 1000;
- f_lo1 = (f_lo1 / 250) * 250;
- f_lo2 = f_lo1 - freq - MT2131_IF2;
-
- priv->frequency = (f_lo1 - f_lo2 - MT2131_IF2) * 1000;
-
- /* Frequency LO1 = 16MHz * (DIV1 + NUM1/8192 ) */
- num1 = f_lo1 * 64 / (MT2131_FREF / 128);
- div1 = num1 / 8192;
- num1 &= 0x1fff;
-
- /* Frequency LO2 = 16MHz * (DIV2 + NUM2/8192 ) */
- num2 = f_lo2 * 64 / (MT2131_FREF / 128);
- div2 = num2 / 8192;
- num2 &= 0x1fff;
-
- if (freq <= 82500) if_band_center = 0x00; else
- if (freq <= 137500) if_band_center = 0x01; else
- if (freq <= 192500) if_band_center = 0x02; else
- if (freq <= 247500) if_band_center = 0x03; else
- if (freq <= 302500) if_band_center = 0x04; else
- if (freq <= 357500) if_band_center = 0x05; else
- if (freq <= 412500) if_band_center = 0x06; else
- if (freq <= 467500) if_band_center = 0x07; else
- if (freq <= 522500) if_band_center = 0x08; else
- if (freq <= 577500) if_band_center = 0x09; else
- if (freq <= 632500) if_band_center = 0x0A; else
- if (freq <= 687500) if_band_center = 0x0B; else
- if (freq <= 742500) if_band_center = 0x0C; else
- if (freq <= 797500) if_band_center = 0x0D; else
- if (freq <= 852500) if_band_center = 0x0E; else
- if (freq <= 907500) if_band_center = 0x0F; else
- if (freq <= 962500) if_band_center = 0x10; else
- if (freq <= 1017500) if_band_center = 0x11; else
- if (freq <= 1072500) if_band_center = 0x12; else if_band_center = 0x13;
-
- b[0] = 1;
- b[1] = (num1 >> 5) & 0xFF;
- b[2] = (num1 & 0x1F);
- b[3] = div1;
- b[4] = (num2 >> 5) & 0xFF;
- b[5] = num2 & 0x1F;
- b[6] = div2;
-
- dprintk(1, "IF1: %dMHz IF2: %dMHz\n", MT2131_IF1, MT2131_IF2);
- dprintk(1, "PLL freq=%dkHz band=%d\n", (int)freq, (int)if_band_center);
- dprintk(1, "PLL f_lo1=%dkHz f_lo2=%dkHz\n", (int)f_lo1, (int)f_lo2);
- dprintk(1, "PLL div1=%d num1=%d div2=%d num2=%d\n",
- (int)div1, (int)num1, (int)div2, (int)num2);
- dprintk(1, "PLL [1..6]: %2x %2x %2x %2x %2x %2x\n",
- (int)b[1], (int)b[2], (int)b[3], (int)b[4], (int)b[5],
- (int)b[6]);
-
- ret = mt2131_writeregs(priv,b,7);
- if (ret < 0)
- return ret;
-
- mt2131_writereg(priv, 0x0b, if_band_center);
-
- /* Wait for lock */
- i = 0;
- do {
- mt2131_readreg(priv, 0x08, &lockval);
- if ((lockval & 0x88) == 0x88)
- break;
- msleep(4);
- i++;
- } while (i < 10);
-
- return ret;
-}
-
-static int mt2131_get_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- struct mt2131_priv *priv = fe->tuner_priv;
- dprintk(1, "%s()\n", __func__);
- *frequency = priv->frequency;
- return 0;
-}
-
-static int mt2131_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
-{
- struct mt2131_priv *priv = fe->tuner_priv;
- dprintk(1, "%s()\n", __func__);
- *bandwidth = priv->bandwidth;
- return 0;
-}
-
-static int mt2131_get_status(struct dvb_frontend *fe, u32 *status)
-{
- struct mt2131_priv *priv = fe->tuner_priv;
- u8 lock_status = 0;
- u8 afc_status = 0;
-
- *status = 0;
-
- mt2131_readreg(priv, 0x08, &lock_status);
- if ((lock_status & 0x88) == 0x88)
- *status = TUNER_STATUS_LOCKED;
-
- mt2131_readreg(priv, 0x09, &afc_status);
- dprintk(1, "%s() - LO Status = 0x%x, AFC Status = 0x%x\n",
- __func__, lock_status, afc_status);
-
- return 0;
-}
-
-static int mt2131_init(struct dvb_frontend *fe)
-{
- struct mt2131_priv *priv = fe->tuner_priv;
- int ret;
- dprintk(1, "%s()\n", __func__);
-
- if ((ret = mt2131_writeregs(priv, mt2131_config1,
- sizeof(mt2131_config1))) < 0)
- return ret;
-
- mt2131_writereg(priv, 0x0b, 0x09);
- mt2131_writereg(priv, 0x15, 0x47);
- mt2131_writereg(priv, 0x07, 0xf2);
- mt2131_writereg(priv, 0x0b, 0x01);
-
- if ((ret = mt2131_writeregs(priv, mt2131_config2,
- sizeof(mt2131_config2))) < 0)
- return ret;
-
- return ret;
-}
-
-static int mt2131_release(struct dvb_frontend *fe)
-{
- dprintk(1, "%s()\n", __func__);
- kfree(fe->tuner_priv);
- fe->tuner_priv = NULL;
- return 0;
-}
-
-static const struct dvb_tuner_ops mt2131_tuner_ops = {
- .info = {
- .name = "Microtune MT2131",
- .frequency_min = 48000000,
- .frequency_max = 860000000,
- .frequency_step = 50000,
- },
-
- .release = mt2131_release,
- .init = mt2131_init,
-
- .set_params = mt2131_set_params,
- .get_frequency = mt2131_get_frequency,
- .get_bandwidth = mt2131_get_bandwidth,
- .get_status = mt2131_get_status
-};
-
-struct dvb_frontend * mt2131_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c,
- struct mt2131_config *cfg, u16 if1)
-{
- struct mt2131_priv *priv = NULL;
- u8 id = 0;
-
- dprintk(1, "%s()\n", __func__);
-
- priv = kzalloc(sizeof(struct mt2131_priv), GFP_KERNEL);
- if (priv == NULL)
- return NULL;
-
- priv->cfg = cfg;
- priv->bandwidth = 6000000; /* 6MHz */
- priv->i2c = i2c;
-
- if (mt2131_readreg(priv, 0, &id) != 0) {
- kfree(priv);
- return NULL;
- }
- if ( (id != 0x3E) && (id != 0x3F) ) {
- printk(KERN_ERR "MT2131: Device not found at addr 0x%02x\n",
- cfg->i2c_address);
- kfree(priv);
- return NULL;
- }
-
- printk(KERN_INFO "MT2131: successfully identified at address 0x%02x\n",
- cfg->i2c_address);
- memcpy(&fe->ops.tuner_ops, &mt2131_tuner_ops,
- sizeof(struct dvb_tuner_ops));
-
- fe->tuner_priv = priv;
- return fe;
-}
-EXPORT_SYMBOL(mt2131_attach);
-
-MODULE_AUTHOR("Steven Toth");
-MODULE_DESCRIPTION("Microtune MT2131 silicon tuner driver");
-MODULE_LICENSE("GPL");
-
-/*
- * Local variables:
- * c-basic-offset: 8
- */
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