diff options
Diffstat (limited to 'drivers/media/dvb/frontends/stb6000.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stb6000.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/drivers/media/dvb/frontends/stb6000.c b/drivers/media/dvb/frontends/stb6000.c deleted file mode 100644 index a0c3c526b13..00000000000 --- a/drivers/media/dvb/frontends/stb6000.c +++ /dev/null @@ -1,256 +0,0 @@ - /* - Driver for ST STB6000 DVBS Silicon tuner - - Copyright (C) 2008 Igor M. Liplianin (liplianin@me.by) - - 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 "stb6000.h" - -static int debug; -#define dprintk(args...) \ - do { \ - if (debug) \ - printk(KERN_DEBUG "stb6000: " args); \ - } while (0) - -struct stb6000_priv { - /* i2c details */ - int i2c_address; - struct i2c_adapter *i2c; - u32 frequency; -}; - -static int stb6000_release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - return 0; -} - -static int stb6000_sleep(struct dvb_frontend *fe) -{ - struct stb6000_priv *priv = fe->tuner_priv; - int ret; - u8 buf[] = { 10, 0 }; - struct i2c_msg msg = { - .addr = priv->i2c_address, - .flags = 0, - .buf = buf, - .len = 2 - }; - - dprintk("%s:\n", __func__); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - ret = i2c_transfer(priv->i2c, &msg, 1); - if (ret != 1) - dprintk("%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 stb6000_set_params(struct dvb_frontend *fe) -{ - struct dtv_frontend_properties *p = &fe->dtv_property_cache; - struct stb6000_priv *priv = fe->tuner_priv; - unsigned int n, m; - int ret; - u32 freq_mhz; - int bandwidth; - u8 buf[12]; - struct i2c_msg msg = { - .addr = priv->i2c_address, - .flags = 0, - .buf = buf, - .len = 12 - }; - - dprintk("%s:\n", __func__); - - freq_mhz = p->frequency / 1000; - bandwidth = p->symbol_rate / 1000000; - - if (bandwidth > 31) - bandwidth = 31; - - if ((freq_mhz > 949) && (freq_mhz < 2151)) { - buf[0] = 0x01; - buf[1] = 0xac; - if (freq_mhz < 1950) - buf[1] = 0xaa; - if (freq_mhz < 1800) - buf[1] = 0xa8; - if (freq_mhz < 1650) - buf[1] = 0xa6; - if (freq_mhz < 1530) - buf[1] = 0xa5; - if (freq_mhz < 1470) - buf[1] = 0xa4; - if (freq_mhz < 1370) - buf[1] = 0xa2; - if (freq_mhz < 1300) - buf[1] = 0xa1; - if (freq_mhz < 1200) - buf[1] = 0xa0; - if (freq_mhz < 1075) - buf[1] = 0xbc; - if (freq_mhz < 1000) - buf[1] = 0xba; - if (freq_mhz < 1075) { - n = freq_mhz / 8; /* vco=lo*4 */ - m = 2; - } else { - n = freq_mhz / 16; /* vco=lo*2 */ - m = 1; - } - buf[2] = n >> 1; - buf[3] = (unsigned char)(((n & 1) << 7) | - (m * freq_mhz - n * 16) | 0x60); - buf[4] = 0x04; - buf[5] = 0x0e; - - buf[6] = (unsigned char)(bandwidth); - - buf[7] = 0xd8; - buf[8] = 0xd0; - buf[9] = 0x50; - buf[10] = 0xeb; - buf[11] = 0x4f; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - ret = i2c_transfer(priv->i2c, &msg, 1); - if (ret != 1) - dprintk("%s: i2c error\n", __func__); - - udelay(10); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - - buf[0] = 0x07; - buf[1] = 0xdf; - buf[2] = 0xd0; - buf[3] = 0x50; - buf[4] = 0xfb; - msg.len = 5; - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - ret = i2c_transfer(priv->i2c, &msg, 1); - if (ret != 1) - dprintk("%s: i2c error\n", __func__); - - udelay(10); - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 0); - - priv->frequency = freq_mhz * 1000; - - return (ret == 1) ? 0 : ret; - } - return -1; -} - -static int stb6000_get_frequency(struct dvb_frontend *fe, u32 *frequency) -{ - struct stb6000_priv *priv = fe->tuner_priv; - *frequency = priv->frequency; - return 0; -} - -static struct dvb_tuner_ops stb6000_tuner_ops = { - .info = { - .name = "ST STB6000", - .frequency_min = 950000, - .frequency_max = 2150000 - }, - .release = stb6000_release, - .sleep = stb6000_sleep, - .set_params = stb6000_set_params, - .get_frequency = stb6000_get_frequency, -}; - -struct dvb_frontend *stb6000_attach(struct dvb_frontend *fe, int addr, - struct i2c_adapter *i2c) -{ - struct stb6000_priv *priv = NULL; - u8 b0[] = { 0 }; - u8 b1[] = { 0, 0 }; - struct i2c_msg msg[2] = { - { - .addr = addr, - .flags = 0, - .buf = b0, - .len = 0 - }, { - .addr = addr, - .flags = I2C_M_RD, - .buf = b1, - .len = 2 - } - }; - int ret; - - dprintk("%s:\n", __func__); - - if (fe->ops.i2c_gate_ctrl) - fe->ops.i2c_gate_ctrl(fe, 1); - - /* is some i2c device here ? */ - 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 stb6000_priv), GFP_KERNEL); - if (priv == NULL) - return NULL; - - priv->i2c_address = addr; - priv->i2c = i2c; - - memcpy(&fe->ops.tuner_ops, &stb6000_tuner_ops, - sizeof(struct dvb_tuner_ops)); - - fe->tuner_priv = priv; - - return fe; -} -EXPORT_SYMBOL(stb6000_attach); - -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); - -MODULE_DESCRIPTION("DVB STB6000 driver"); -MODULE_AUTHOR("Igor M. Liplianin <liplianin@me.by>"); -MODULE_LICENSE("GPL"); |