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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-13 23:13:41 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-13 23:13:41 -0300
commit9a0bf528b4d66b605f02634236da085595c22101 (patch)
treee9ff008ff15c3ee5add6d41173ee5e61939480dd /drivers/media/dvb/frontends/tua6100.c
parent3d6c2bc08ac4f75bf3597740357c98f2207ca412 (diff)
[media] move the dvb/frontends to drivers/media/dvb-frontends
Raise the DVB frontends one level up, as the intention is to remove the drivers/media/dvb directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/frontends/tua6100.c')
-rw-r--r--drivers/media/dvb/frontends/tua6100.c206
1 files changed, 0 insertions, 206 deletions
diff --git a/drivers/media/dvb/frontends/tua6100.c b/drivers/media/dvb/frontends/tua6100.c
deleted file mode 100644
index 029384d1fdd..00000000000
--- a/drivers/media/dvb/frontends/tua6100.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/**
- * Driver for Infineon tua6100 pll.
- *
- * (c) 2006 Andrew de Quincey
- *
- * Based on code found in budget-av.c, which has the following:
- * Compiled from various sources by Michael Hunold <michael@mihu.de>
- *
- * CI interface support (c) 2004 Olivier Gournet <ogournet@anevia.com> &
- * Andrew de Quincey <adq_dvb@lidskialf.net>
- *
- * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
- *
- * Copyright (C) 1999-2002 Ralph Metzler
- * & Marcus Metzler for convergence integrated media GmbH
- * 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/slab.h>
-#include <linux/module.h>
-#include <linux/dvb/frontend.h>
-#include <asm/types.h>
-
-#include "tua6100.h"
-
-struct tua6100_priv {
- /* i2c details */
- int i2c_address;
- struct i2c_adapter *i2c;
- u32 frequency;
-};
-
-static int tua6100_release(struct dvb_frontend *fe)
-{
- kfree(fe->tuner_priv);
- fe->tuner_priv = NULL;
- return 0;
-}
-
-static int tua6100_sleep(struct dvb_frontend *fe)
-{
- struct tua6100_priv *priv = fe->tuner_priv;
- int ret;
- u8 reg0[] = { 0x00, 0x00 };
- struct i2c_msg msg = { .addr = priv->i2c_address, .flags = 0, .buf = reg0, .len = 2 };
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
- if ((ret = i2c_transfer (priv->i2c, &msg, 1)) != 1) {
- printk("%s: i2c error\n", __func__);
- }
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- return (ret == 1) ? 0 : ret;
-}
-
-static int tua6100_set_params(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct tua6100_priv *priv = fe->tuner_priv;
- u32 div;
- u32 prediv;
- u8 reg0[] = { 0x00, 0x00 };
- u8 reg1[] = { 0x01, 0x00, 0x00, 0x00 };
- u8 reg2[] = { 0x02, 0x00, 0x00 };
- struct i2c_msg msg0 = { .addr = priv->i2c_address, .flags = 0, .buf = reg0, .len = 2 };
- struct i2c_msg msg1 = { .addr = priv->i2c_address, .flags = 0, .buf = reg1, .len = 4 };
- struct i2c_msg msg2 = { .addr = priv->i2c_address, .flags = 0, .buf = reg2, .len = 3 };
-
-#define _R 4
-#define _P 32
-#define _ri 4000000
-
- // setup register 0
- if (c->frequency < 2000000)
- reg0[1] = 0x03;
- else
- reg0[1] = 0x07;
-
- // setup register 1
- if (c->frequency < 1630000)
- reg1[1] = 0x2c;
- else
- reg1[1] = 0x0c;
-
- if (_P == 64)
- reg1[1] |= 0x40;
- if (c->frequency >= 1525000)
- reg1[1] |= 0x80;
-
- // register 2
- reg2[1] = (_R >> 8) & 0x03;
- reg2[2] = _R;
- if (c->frequency < 1455000)
- reg2[1] |= 0x1c;
- else if (c->frequency < 1630000)
- reg2[1] |= 0x0c;
- else
- reg2[1] |= 0x1c;
-
- /*
- * The N divisor ratio (note: c->frequency is in kHz, but we
- * need it in Hz)
- */
- prediv = (c->frequency * _R) / (_ri / 1000);
- div = prediv / _P;
- reg1[1] |= (div >> 9) & 0x03;
- reg1[2] = div >> 1;
- reg1[3] = (div << 7);
- priv->frequency = ((div * _P) * (_ri / 1000)) / _R;
-
- // Finally, calculate and store the value for A
- reg1[3] |= (prediv - (div*_P)) & 0x7f;
-
-#undef _R
-#undef _P
-#undef _ri
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
- if (i2c_transfer(priv->i2c, &msg0, 1) != 1)
- return -EIO;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
- if (i2c_transfer(priv->i2c, &msg2, 1) != 1)
- return -EIO;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
- if (i2c_transfer(priv->i2c, &msg1, 1) != 1)
- return -EIO;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- return 0;
-}
-
-static int tua6100_get_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- struct tua6100_priv *priv = fe->tuner_priv;
- *frequency = priv->frequency;
- return 0;
-}
-
-static struct dvb_tuner_ops tua6100_tuner_ops = {
- .info = {
- .name = "Infineon TUA6100",
- .frequency_min = 950000,
- .frequency_max = 2150000,
- .frequency_step = 1000,
- },
- .release = tua6100_release,
- .sleep = tua6100_sleep,
- .set_params = tua6100_set_params,
- .get_frequency = tua6100_get_frequency,
-};
-
-struct dvb_frontend *tua6100_attach(struct dvb_frontend *fe, int addr, struct i2c_adapter *i2c)
-{
- struct tua6100_priv *priv = NULL;
- u8 b1 [] = { 0x80 };
- u8 b2 [] = { 0x00 };
- struct i2c_msg msg [] = { { .addr = addr, .flags = 0, .buf = b1, .len = 1 },
- { .addr = addr, .flags = I2C_M_RD, .buf = b2, .len = 1 } };
- int ret;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1);
- ret = i2c_transfer (i2c, msg, 2);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- if (ret != 2)
- return NULL;
-
- priv = kzalloc(sizeof(struct tua6100_priv), GFP_KERNEL);
- if (priv == NULL)
- return NULL;
-
- priv->i2c_address = addr;
- priv->i2c = i2c;
-
- memcpy(&fe->ops.tuner_ops, &tua6100_tuner_ops, sizeof(struct dvb_tuner_ops));
- fe->tuner_priv = priv;
- return fe;
-}
-EXPORT_SYMBOL(tua6100_attach);
-
-MODULE_DESCRIPTION("DVB tua6100 driver");
-MODULE_AUTHOR("Andrew de Quincey");
-MODULE_LICENSE("GPL");