mirror of https://gitee.com/openkylin/linux.git
857 lines
21 KiB
C
857 lines
21 KiB
C
/*
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* Support for the Broadcom BCM3510 ATSC demodulator (1st generation Air2PC)
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*
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* Copyright (C) 2001-5, B2C2 inc.
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*
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* GPL/Linux driver written by Patrick Boettcher <patrick.boettcher@desy.de>
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*
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* This driver is "hard-coded" to be used with the 1st generation of
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* Technisat/B2C2's Air2PC ATSC PCI/USB cards/boxes. The pll-programming
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* (Panasonic CT10S) is located here, which is actually wrong. Unless there is
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* another device with a BCM3510, this is no problem.
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*
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* The driver works also with QAM64 DVB-C, but had an unreasonable high
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* UNC. (Tested with the Air2PC ATSC 1st generation)
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*
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* You'll need a firmware for this driver in order to get it running. It is
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* called "dvb-fe-bcm3510-01.fw".
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 675 Mass
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* Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/firmware.h>
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#include <linux/jiffies.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/mutex.h>
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#include "dvb_frontend.h"
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#include "bcm3510.h"
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#include "bcm3510_priv.h"
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struct bcm3510_state {
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struct i2c_adapter* i2c;
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const struct bcm3510_config* config;
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struct dvb_frontend frontend;
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/* demodulator private data */
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struct mutex hab_mutex;
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u8 firmware_loaded:1;
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unsigned long next_status_check;
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unsigned long status_check_interval;
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struct bcm3510_hab_cmd_status1 status1;
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struct bcm3510_hab_cmd_status2 status2;
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};
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "set debugging level (1=info,2=i2c (|-able)).");
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#define dprintk(level,x...) if (level & debug) printk(x)
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#define dbufout(b,l,m) {\
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int i; \
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for (i = 0; i < l; i++) \
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m("%02x ",b[i]); \
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}
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#define deb_info(args...) dprintk(0x01,args)
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#define deb_i2c(args...) dprintk(0x02,args)
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#define deb_hab(args...) dprintk(0x04,args)
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/* transfer functions */
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static int bcm3510_writebytes (struct bcm3510_state *state, u8 reg, u8 *buf, u8 len)
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{
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u8 b[256];
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int err;
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struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = b, .len = len + 1 };
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b[0] = reg;
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memcpy(&b[1],buf,len);
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deb_i2c("i2c wr %02x: ",reg);
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dbufout(buf,len,deb_i2c);
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deb_i2c("\n");
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if ((err = i2c_transfer (state->i2c, &msg, 1)) != 1) {
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deb_info("%s: i2c write error (addr %02x, reg %02x, err == %i)\n",
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__func__, state->config->demod_address, reg, err);
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return -EREMOTEIO;
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}
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return 0;
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}
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static int bcm3510_readbytes (struct bcm3510_state *state, u8 reg, u8 *buf, u8 len)
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{
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struct i2c_msg msg[] = {
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{ .addr = state->config->demod_address, .flags = 0, .buf = ®, .len = 1 },
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{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = buf, .len = len }
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};
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int err;
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memset(buf,0,len);
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if ((err = i2c_transfer (state->i2c, msg, 2)) != 2) {
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deb_info("%s: i2c read error (addr %02x, reg %02x, err == %i)\n",
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__func__, state->config->demod_address, reg, err);
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return -EREMOTEIO;
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}
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deb_i2c("i2c rd %02x: ",reg);
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dbufout(buf,len,deb_i2c);
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deb_i2c("\n");
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return 0;
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}
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static int bcm3510_writeB(struct bcm3510_state *state, u8 reg, bcm3510_register_value v)
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{
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return bcm3510_writebytes(state,reg,&v.raw,1);
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}
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static int bcm3510_readB(struct bcm3510_state *state, u8 reg, bcm3510_register_value *v)
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{
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return bcm3510_readbytes(state,reg,&v->raw,1);
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}
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/* Host Access Buffer transfers */
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static int bcm3510_hab_get_response(struct bcm3510_state *st, u8 *buf, int len)
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{
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bcm3510_register_value v;
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int ret,i;
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v.HABADR_a6.HABADR = 0;
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if ((ret = bcm3510_writeB(st,0xa6,v)) < 0)
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return ret;
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for (i = 0; i < len; i++) {
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if ((ret = bcm3510_readB(st,0xa7,&v)) < 0)
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return ret;
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buf[i] = v.HABDATA_a7;
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}
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return 0;
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}
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static int bcm3510_hab_send_request(struct bcm3510_state *st, u8 *buf, int len)
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{
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bcm3510_register_value v,hab;
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int ret,i;
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unsigned long t;
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/* Check if any previous HAB request still needs to be serviced by the
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* Acquisition Processor before sending new request */
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if ((ret = bcm3510_readB(st,0xa8,&v)) < 0)
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return ret;
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if (v.HABSTAT_a8.HABR) {
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deb_info("HAB is running already - clearing it.\n");
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v.HABSTAT_a8.HABR = 0;
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bcm3510_writeB(st,0xa8,v);
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// return -EBUSY;
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}
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/* Send the start HAB Address (automatically incremented after write of
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* HABDATA) and write the HAB Data */
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hab.HABADR_a6.HABADR = 0;
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if ((ret = bcm3510_writeB(st,0xa6,hab)) < 0)
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return ret;
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for (i = 0; i < len; i++) {
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hab.HABDATA_a7 = buf[i];
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if ((ret = bcm3510_writeB(st,0xa7,hab)) < 0)
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return ret;
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}
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/* Set the HABR bit to indicate AP request in progress (LBHABR allows HABR to
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* be written) */
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v.raw = 0; v.HABSTAT_a8.HABR = 1; v.HABSTAT_a8.LDHABR = 1;
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if ((ret = bcm3510_writeB(st,0xa8,v)) < 0)
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return ret;
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/* Polling method: Wait until the AP finishes processing the HAB request */
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t = jiffies + 1*HZ;
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while (time_before(jiffies, t)) {
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deb_info("waiting for HAB to complete\n");
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msleep(10);
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if ((ret = bcm3510_readB(st,0xa8,&v)) < 0)
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return ret;
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if (!v.HABSTAT_a8.HABR)
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return 0;
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}
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deb_info("send_request execution timed out.\n");
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return -ETIMEDOUT;
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}
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static int bcm3510_do_hab_cmd(struct bcm3510_state *st, u8 cmd, u8 msgid, u8 *obuf, u8 olen, u8 *ibuf, u8 ilen)
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{
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u8 ob[olen+2],ib[ilen+2];
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int ret = 0;
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ob[0] = cmd;
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ob[1] = msgid;
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memcpy(&ob[2],obuf,olen);
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deb_hab("hab snd: ");
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dbufout(ob,olen+2,deb_hab);
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deb_hab("\n");
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if (mutex_lock_interruptible(&st->hab_mutex) < 0)
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return -EAGAIN;
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if ((ret = bcm3510_hab_send_request(st, ob, olen+2)) < 0 ||
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(ret = bcm3510_hab_get_response(st, ib, ilen+2)) < 0)
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goto error;
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deb_hab("hab get: ");
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dbufout(ib,ilen+2,deb_hab);
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deb_hab("\n");
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memcpy(ibuf,&ib[2],ilen);
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error:
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mutex_unlock(&st->hab_mutex);
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return ret;
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}
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#if 0
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/* not needed, we use a semaphore to prevent HAB races */
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static int bcm3510_is_ap_ready(struct bcm3510_state *st)
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{
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bcm3510_register_value ap,hab;
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int ret;
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if ((ret = bcm3510_readB(st,0xa8,&hab)) < 0 ||
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(ret = bcm3510_readB(st,0xa2,&ap) < 0))
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return ret;
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if (ap.APSTAT1_a2.RESET || ap.APSTAT1_a2.IDLE || ap.APSTAT1_a2.STOP || hab.HABSTAT_a8.HABR) {
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deb_info("AP is busy\n");
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return -EBUSY;
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}
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return 0;
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}
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#endif
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static int bcm3510_bert_reset(struct bcm3510_state *st)
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{
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bcm3510_register_value b;
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int ret;
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if ((ret = bcm3510_readB(st,0xfa,&b)) < 0)
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return ret;
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b.BERCTL_fa.RESYNC = 0; bcm3510_writeB(st,0xfa,b);
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b.BERCTL_fa.RESYNC = 1; bcm3510_writeB(st,0xfa,b);
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b.BERCTL_fa.RESYNC = 0; bcm3510_writeB(st,0xfa,b);
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b.BERCTL_fa.CNTCTL = 1; b.BERCTL_fa.BITCNT = 1; bcm3510_writeB(st,0xfa,b);
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/* clear residual bit counter TODO */
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return 0;
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}
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static int bcm3510_refresh_state(struct bcm3510_state *st)
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{
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if (time_after(jiffies,st->next_status_check)) {
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bcm3510_do_hab_cmd(st, CMD_STATUS, MSGID_STATUS1, NULL,0, (u8 *)&st->status1, sizeof(st->status1));
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bcm3510_do_hab_cmd(st, CMD_STATUS, MSGID_STATUS2, NULL,0, (u8 *)&st->status2, sizeof(st->status2));
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st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000;
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}
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return 0;
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}
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static int bcm3510_read_status(struct dvb_frontend *fe, fe_status_t *status)
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{
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struct bcm3510_state* st = fe->demodulator_priv;
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bcm3510_refresh_state(st);
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*status = 0;
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if (st->status1.STATUS1.RECEIVER_LOCK)
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*status |= FE_HAS_LOCK | FE_HAS_SYNC;
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if (st->status1.STATUS1.FEC_LOCK)
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*status |= FE_HAS_VITERBI;
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if (st->status1.STATUS1.OUT_PLL_LOCK)
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*status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
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if (*status & FE_HAS_LOCK)
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st->status_check_interval = 1500;
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else /* more frequently checks if no lock has been achieved yet */
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st->status_check_interval = 500;
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deb_info("real_status: %02x\n",*status);
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return 0;
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}
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static int bcm3510_read_ber(struct dvb_frontend* fe, u32* ber)
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{
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struct bcm3510_state* st = fe->demodulator_priv;
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bcm3510_refresh_state(st);
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*ber = (st->status2.LDBER0 << 16) | (st->status2.LDBER1 << 8) | st->status2.LDBER2;
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return 0;
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}
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static int bcm3510_read_unc(struct dvb_frontend* fe, u32* unc)
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{
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struct bcm3510_state* st = fe->demodulator_priv;
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bcm3510_refresh_state(st);
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*unc = (st->status2.LDUERC0 << 8) | st->status2.LDUERC1;
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return 0;
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}
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static int bcm3510_read_signal_strength(struct dvb_frontend* fe, u16* strength)
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{
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struct bcm3510_state* st = fe->demodulator_priv;
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s32 t;
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bcm3510_refresh_state(st);
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t = st->status2.SIGNAL;
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if (t > 190)
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t = 190;
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if (t < 90)
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t = 90;
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t -= 90;
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t = t * 0xff / 100;
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/* normalize if necessary */
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*strength = (t << 8) | t;
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return 0;
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}
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static int bcm3510_read_snr(struct dvb_frontend* fe, u16* snr)
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{
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struct bcm3510_state* st = fe->demodulator_priv;
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bcm3510_refresh_state(st);
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*snr = st->status1.SNR_EST0*1000 + ((st->status1.SNR_EST1*1000) >> 8);
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return 0;
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}
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/* tuner frontend programming */
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static int bcm3510_tuner_cmd(struct bcm3510_state* st,u8 bc, u16 n, u8 a)
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{
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struct bcm3510_hab_cmd_tune c;
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memset(&c,0,sizeof(struct bcm3510_hab_cmd_tune));
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/* I2C Mode disabled, set 16 control / Data pairs */
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c.length = 0x10;
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c.clock_width = 0;
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/* CS1, CS0, DATA, CLK bits control the tuner RF_AGC_SEL pin is set to
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* logic high (as Configuration) */
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c.misc = 0x10;
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/* Set duration of the initial state of TUNCTL = 3.34 micro Sec */
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c.TUNCTL_state = 0x40;
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/* PRESCALER DIVIDE RATIO | BC1_2_3_4; (band switch), 1stosc REFERENCE COUNTER REF_S12 and REF_S11 */
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c.ctl_dat[0].ctrl.size = BITS_8;
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c.ctl_dat[0].data = 0x80 | bc;
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/* Control DATA pin, 1stosc REFERENCE COUNTER REF_S10 to REF_S3 */
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c.ctl_dat[1].ctrl.size = BITS_8;
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c.ctl_dat[1].data = 4;
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/* set CONTROL BIT 1 to 1, 1stosc REFERENCE COUNTER REF_S2 to REF_S1 */
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c.ctl_dat[2].ctrl.size = BITS_3;
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c.ctl_dat[2].data = 0x20;
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/* control CS0 pin, pulse byte ? */
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c.ctl_dat[3].ctrl.size = BITS_3;
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c.ctl_dat[3].ctrl.clk_off = 1;
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c.ctl_dat[3].ctrl.cs0 = 1;
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c.ctl_dat[3].data = 0x40;
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/* PGM_S18 to PGM_S11 */
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c.ctl_dat[4].ctrl.size = BITS_8;
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c.ctl_dat[4].data = n >> 3;
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/* PGM_S10 to PGM_S8, SWL_S7 to SWL_S3 */
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c.ctl_dat[5].ctrl.size = BITS_8;
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c.ctl_dat[5].data = ((n & 0x7) << 5) | (a >> 2);
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/* SWL_S2 and SWL_S1, set CONTROL BIT 2 to 0 */
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c.ctl_dat[6].ctrl.size = BITS_3;
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c.ctl_dat[6].data = (a << 6) & 0xdf;
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/* control CS0 pin, pulse byte ? */
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c.ctl_dat[7].ctrl.size = BITS_3;
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c.ctl_dat[7].ctrl.clk_off = 1;
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c.ctl_dat[7].ctrl.cs0 = 1;
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c.ctl_dat[7].data = 0x40;
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/* PRESCALER DIVIDE RATIO, 2ndosc REFERENCE COUNTER REF_S12 and REF_S11 */
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c.ctl_dat[8].ctrl.size = BITS_8;
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c.ctl_dat[8].data = 0x80;
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/* 2ndosc REFERENCE COUNTER REF_S10 to REF_S3 */
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c.ctl_dat[9].ctrl.size = BITS_8;
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c.ctl_dat[9].data = 0x10;
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/* set CONTROL BIT 1 to 1, 2ndosc REFERENCE COUNTER REF_S2 to REF_S1 */
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c.ctl_dat[10].ctrl.size = BITS_3;
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c.ctl_dat[10].data = 0x20;
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/* pulse byte */
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c.ctl_dat[11].ctrl.size = BITS_3;
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c.ctl_dat[11].ctrl.clk_off = 1;
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c.ctl_dat[11].ctrl.cs1 = 1;
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c.ctl_dat[11].data = 0x40;
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/* PGM_S18 to PGM_S11 */
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c.ctl_dat[12].ctrl.size = BITS_8;
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c.ctl_dat[12].data = 0x2a;
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/* PGM_S10 to PGM_S8 and SWL_S7 to SWL_S3 */
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c.ctl_dat[13].ctrl.size = BITS_8;
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c.ctl_dat[13].data = 0x8e;
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/* SWL_S2 and SWL_S1 and set CONTROL BIT 2 to 0 */
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c.ctl_dat[14].ctrl.size = BITS_3;
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c.ctl_dat[14].data = 0;
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/* Pulse Byte */
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c.ctl_dat[15].ctrl.size = BITS_3;
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c.ctl_dat[15].ctrl.clk_off = 1;
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c.ctl_dat[15].ctrl.cs1 = 1;
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c.ctl_dat[15].data = 0x40;
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return bcm3510_do_hab_cmd(st,CMD_TUNE, MSGID_TUNE,(u8 *) &c,sizeof(c), NULL, 0);
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}
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static int bcm3510_set_freq(struct bcm3510_state* st,u32 freq)
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{
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u8 bc,a;
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u16 n;
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s32 YIntercept,Tfvco1;
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freq /= 1000;
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deb_info("%dkHz:",freq);
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/* set Band Switch */
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if (freq <= 168000)
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bc = 0x1c;
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else if (freq <= 378000)
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bc = 0x2c;
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else
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bc = 0x30;
|
|
|
|
if (freq >= 470000) {
|
|
freq -= 470001;
|
|
YIntercept = 18805;
|
|
} else if (freq >= 90000) {
|
|
freq -= 90001;
|
|
YIntercept = 15005;
|
|
} else if (freq >= 76000){
|
|
freq -= 76001;
|
|
YIntercept = 14865;
|
|
} else {
|
|
freq -= 54001;
|
|
YIntercept = 14645;
|
|
}
|
|
|
|
Tfvco1 = (((freq/6000)*60 + YIntercept)*4)/10;
|
|
|
|
n = Tfvco1 >> 6;
|
|
a = Tfvco1 & 0x3f;
|
|
|
|
deb_info(" BC1_2_3_4: %x, N: %x A: %x\n", bc, n, a);
|
|
if (n >= 16 && n <= 2047)
|
|
return bcm3510_tuner_cmd(st,bc,n,a);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int bcm3510_set_frontend(struct dvb_frontend *fe)
|
|
{
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
|
struct bcm3510_state* st = fe->demodulator_priv;
|
|
struct bcm3510_hab_cmd_ext_acquire cmd;
|
|
struct bcm3510_hab_cmd_bert_control bert;
|
|
int ret;
|
|
|
|
memset(&cmd,0,sizeof(cmd));
|
|
switch (c->modulation) {
|
|
case QAM_256:
|
|
cmd.ACQUIRE0.MODE = 0x1;
|
|
cmd.ACQUIRE1.SYM_RATE = 0x1;
|
|
cmd.ACQUIRE1.IF_FREQ = 0x1;
|
|
break;
|
|
case QAM_64:
|
|
cmd.ACQUIRE0.MODE = 0x2;
|
|
cmd.ACQUIRE1.SYM_RATE = 0x2;
|
|
cmd.ACQUIRE1.IF_FREQ = 0x1;
|
|
break;
|
|
#if 0
|
|
case QAM_256:
|
|
cmd.ACQUIRE0.MODE = 0x3;
|
|
break;
|
|
case QAM_128:
|
|
cmd.ACQUIRE0.MODE = 0x4;
|
|
break;
|
|
case QAM_64:
|
|
cmd.ACQUIRE0.MODE = 0x5;
|
|
break;
|
|
case QAM_32:
|
|
cmd.ACQUIRE0.MODE = 0x6;
|
|
break;
|
|
case QAM_16:
|
|
cmd.ACQUIRE0.MODE = 0x7;
|
|
break;
|
|
#endif
|
|
case VSB_8:
|
|
cmd.ACQUIRE0.MODE = 0x8;
|
|
cmd.ACQUIRE1.SYM_RATE = 0x0;
|
|
cmd.ACQUIRE1.IF_FREQ = 0x0;
|
|
break;
|
|
case VSB_16:
|
|
cmd.ACQUIRE0.MODE = 0x9;
|
|
cmd.ACQUIRE1.SYM_RATE = 0x0;
|
|
cmd.ACQUIRE1.IF_FREQ = 0x0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
cmd.ACQUIRE0.OFFSET = 0;
|
|
cmd.ACQUIRE0.NTSCSWEEP = 1;
|
|
cmd.ACQUIRE0.FA = 1;
|
|
cmd.ACQUIRE0.BW = 0;
|
|
|
|
/* if (enableOffset) {
|
|
cmd.IF_OFFSET0 = xx;
|
|
cmd.IF_OFFSET1 = xx;
|
|
|
|
cmd.SYM_OFFSET0 = xx;
|
|
cmd.SYM_OFFSET1 = xx;
|
|
if (enableNtscSweep) {
|
|
cmd.NTSC_OFFSET0;
|
|
cmd.NTSC_OFFSET1;
|
|
}
|
|
} */
|
|
bcm3510_do_hab_cmd(st, CMD_ACQUIRE, MSGID_EXT_TUNER_ACQUIRE, (u8 *) &cmd, sizeof(cmd), NULL, 0);
|
|
|
|
/* doing it with different MSGIDs, data book and source differs */
|
|
bert.BE = 0;
|
|
bert.unused = 0;
|
|
bcm3510_do_hab_cmd(st, CMD_STATE_CONTROL, MSGID_BERT_CONTROL, (u8 *) &bert, sizeof(bert), NULL, 0);
|
|
bcm3510_do_hab_cmd(st, CMD_STATE_CONTROL, MSGID_BERT_SET, (u8 *) &bert, sizeof(bert), NULL, 0);
|
|
|
|
bcm3510_bert_reset(st);
|
|
|
|
ret = bcm3510_set_freq(st, c->frequency);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
memset(&st->status1,0,sizeof(st->status1));
|
|
memset(&st->status2,0,sizeof(st->status2));
|
|
st->status_check_interval = 500;
|
|
|
|
/* Give the AP some time */
|
|
msleep(200);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm3510_sleep(struct dvb_frontend* fe)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int bcm3510_get_tune_settings(struct dvb_frontend *fe, struct dvb_frontend_tune_settings *s)
|
|
{
|
|
s->min_delay_ms = 1000;
|
|
s->step_size = 0;
|
|
s->max_drift = 0;
|
|
return 0;
|
|
}
|
|
|
|
static void bcm3510_release(struct dvb_frontend* fe)
|
|
{
|
|
struct bcm3510_state* state = fe->demodulator_priv;
|
|
kfree(state);
|
|
}
|
|
|
|
/* firmware download:
|
|
* firmware file is build up like this:
|
|
* 16bit addr, 16bit length, 8byte of length
|
|
*/
|
|
#define BCM3510_DEFAULT_FIRMWARE "dvb-fe-bcm3510-01.fw"
|
|
|
|
static int bcm3510_write_ram(struct bcm3510_state *st, u16 addr, const u8 *b,
|
|
u16 len)
|
|
{
|
|
int ret = 0,i;
|
|
bcm3510_register_value vH, vL,vD;
|
|
|
|
vH.MADRH_a9 = addr >> 8;
|
|
vL.MADRL_aa = addr;
|
|
if ((ret = bcm3510_writeB(st,0xa9,vH)) < 0) return ret;
|
|
if ((ret = bcm3510_writeB(st,0xaa,vL)) < 0) return ret;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
vD.MDATA_ab = b[i];
|
|
if ((ret = bcm3510_writeB(st,0xab,vD)) < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm3510_download_firmware(struct dvb_frontend* fe)
|
|
{
|
|
struct bcm3510_state* st = fe->demodulator_priv;
|
|
const struct firmware *fw;
|
|
u16 addr,len;
|
|
const u8 *b;
|
|
int ret,i;
|
|
|
|
deb_info("requesting firmware\n");
|
|
if ((ret = st->config->request_firmware(fe, &fw, BCM3510_DEFAULT_FIRMWARE)) < 0) {
|
|
err("could not load firmware (%s): %d",BCM3510_DEFAULT_FIRMWARE,ret);
|
|
return ret;
|
|
}
|
|
deb_info("got firmware: %zd\n",fw->size);
|
|
|
|
b = fw->data;
|
|
for (i = 0; i < fw->size;) {
|
|
addr = le16_to_cpu( *( (u16 *)&b[i] ) );
|
|
len = le16_to_cpu( *( (u16 *)&b[i+2] ) );
|
|
deb_info("firmware chunk, addr: 0x%04x, len: 0x%04x, total length: 0x%04zx\n",addr,len,fw->size);
|
|
if ((ret = bcm3510_write_ram(st,addr,&b[i+4],len)) < 0) {
|
|
err("firmware download failed: %d\n",ret);
|
|
return ret;
|
|
}
|
|
i += 4 + len;
|
|
}
|
|
release_firmware(fw);
|
|
deb_info("firmware download successfully completed\n");
|
|
return 0;
|
|
}
|
|
|
|
static int bcm3510_check_firmware_version(struct bcm3510_state *st)
|
|
{
|
|
struct bcm3510_hab_cmd_get_version_info ver;
|
|
bcm3510_do_hab_cmd(st,CMD_GET_VERSION_INFO,MSGID_GET_VERSION_INFO,NULL,0,(u8*)&ver,sizeof(ver));
|
|
|
|
deb_info("Version information: 0x%02x 0x%02x 0x%02x 0x%02x\n",
|
|
ver.microcode_version, ver.script_version, ver.config_version, ver.demod_version);
|
|
|
|
if (ver.script_version == BCM3510_DEF_SCRIPT_VERSION &&
|
|
ver.config_version == BCM3510_DEF_CONFIG_VERSION &&
|
|
ver.demod_version == BCM3510_DEF_DEMOD_VERSION)
|
|
return 0;
|
|
|
|
deb_info("version check failed\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* (un)resetting the AP */
|
|
static int bcm3510_reset(struct bcm3510_state *st)
|
|
{
|
|
int ret;
|
|
unsigned long t;
|
|
bcm3510_register_value v;
|
|
|
|
bcm3510_readB(st,0xa0,&v); v.HCTL1_a0.RESET = 1;
|
|
if ((ret = bcm3510_writeB(st,0xa0,v)) < 0)
|
|
return ret;
|
|
|
|
t = jiffies + 3*HZ;
|
|
while (time_before(jiffies, t)) {
|
|
msleep(10);
|
|
if ((ret = bcm3510_readB(st,0xa2,&v)) < 0)
|
|
return ret;
|
|
|
|
if (v.APSTAT1_a2.RESET)
|
|
return 0;
|
|
}
|
|
deb_info("reset timed out\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
static int bcm3510_clear_reset(struct bcm3510_state *st)
|
|
{
|
|
bcm3510_register_value v;
|
|
int ret;
|
|
unsigned long t;
|
|
|
|
v.raw = 0;
|
|
if ((ret = bcm3510_writeB(st,0xa0,v)) < 0)
|
|
return ret;
|
|
|
|
t = jiffies + 3*HZ;
|
|
while (time_before(jiffies, t)) {
|
|
msleep(10);
|
|
if ((ret = bcm3510_readB(st,0xa2,&v)) < 0)
|
|
return ret;
|
|
|
|
/* verify that reset is cleared */
|
|
if (!v.APSTAT1_a2.RESET)
|
|
return 0;
|
|
}
|
|
deb_info("reset clear timed out\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
static int bcm3510_init_cold(struct bcm3510_state *st)
|
|
{
|
|
int ret;
|
|
bcm3510_register_value v;
|
|
|
|
/* read Acquisation Processor status register and check it is not in RUN mode */
|
|
if ((ret = bcm3510_readB(st,0xa2,&v)) < 0)
|
|
return ret;
|
|
if (v.APSTAT1_a2.RUN) {
|
|
deb_info("AP is already running - firmware already loaded.\n");
|
|
return 0;
|
|
}
|
|
|
|
deb_info("reset?\n");
|
|
if ((ret = bcm3510_reset(st)) < 0)
|
|
return ret;
|
|
|
|
deb_info("tristate?\n");
|
|
/* tri-state */
|
|
v.TSTCTL_2e.CTL = 0;
|
|
if ((ret = bcm3510_writeB(st,0x2e,v)) < 0)
|
|
return ret;
|
|
|
|
deb_info("firmware?\n");
|
|
if ((ret = bcm3510_download_firmware(&st->frontend)) < 0 ||
|
|
(ret = bcm3510_clear_reset(st)) < 0)
|
|
return ret;
|
|
|
|
/* anything left here to Let the acquisition processor begin execution at program counter 0000 ??? */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm3510_init(struct dvb_frontend* fe)
|
|
{
|
|
struct bcm3510_state* st = fe->demodulator_priv;
|
|
bcm3510_register_value j;
|
|
struct bcm3510_hab_cmd_set_agc c;
|
|
int ret;
|
|
|
|
if ((ret = bcm3510_readB(st,0xca,&j)) < 0)
|
|
return ret;
|
|
|
|
deb_info("JDEC: %02x\n",j.raw);
|
|
|
|
switch (j.JDEC_ca.JDEC) {
|
|
case JDEC_WAIT_AT_RAM:
|
|
deb_info("attempting to download firmware\n");
|
|
if ((ret = bcm3510_init_cold(st)) < 0)
|
|
return ret;
|
|
case JDEC_EEPROM_LOAD_WAIT: /* fall-through is wanted */
|
|
deb_info("firmware is loaded\n");
|
|
bcm3510_check_firmware_version(st);
|
|
break;
|
|
default:
|
|
return -ENODEV;
|
|
}
|
|
|
|
memset(&c,0,1);
|
|
c.SEL = 1;
|
|
bcm3510_do_hab_cmd(st,CMD_AUTO_PARAM,MSGID_SET_RF_AGC_SEL,(u8 *)&c,sizeof(c),NULL,0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static struct dvb_frontend_ops bcm3510_ops;
|
|
|
|
struct dvb_frontend* bcm3510_attach(const struct bcm3510_config *config,
|
|
struct i2c_adapter *i2c)
|
|
{
|
|
struct bcm3510_state* state = NULL;
|
|
int ret;
|
|
bcm3510_register_value v;
|
|
|
|
/* allocate memory for the internal state */
|
|
state = kzalloc(sizeof(struct bcm3510_state), GFP_KERNEL);
|
|
if (state == NULL)
|
|
goto error;
|
|
|
|
/* setup the state */
|
|
|
|
state->config = config;
|
|
state->i2c = i2c;
|
|
|
|
/* create dvb_frontend */
|
|
memcpy(&state->frontend.ops, &bcm3510_ops, sizeof(struct dvb_frontend_ops));
|
|
state->frontend.demodulator_priv = state;
|
|
|
|
mutex_init(&state->hab_mutex);
|
|
|
|
if ((ret = bcm3510_readB(state,0xe0,&v)) < 0)
|
|
goto error;
|
|
|
|
deb_info("Revision: 0x%1x, Layer: 0x%1x.\n",v.REVID_e0.REV,v.REVID_e0.LAYER);
|
|
|
|
if ((v.REVID_e0.REV != 0x1 && v.REVID_e0.LAYER != 0xb) && /* cold */
|
|
(v.REVID_e0.REV != 0x8 && v.REVID_e0.LAYER != 0x0)) /* warm */
|
|
goto error;
|
|
|
|
info("Revision: 0x%1x, Layer: 0x%1x.",v.REVID_e0.REV,v.REVID_e0.LAYER);
|
|
|
|
bcm3510_reset(state);
|
|
|
|
return &state->frontend;
|
|
|
|
error:
|
|
kfree(state);
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(bcm3510_attach);
|
|
|
|
static struct dvb_frontend_ops bcm3510_ops = {
|
|
.delsys = { SYS_ATSC, SYS_DVBC_ANNEX_B },
|
|
.info = {
|
|
.name = "Broadcom BCM3510 VSB/QAM frontend",
|
|
.frequency_min = 54000000,
|
|
.frequency_max = 803000000,
|
|
/* stepsize is just a guess */
|
|
.frequency_stepsize = 0,
|
|
.caps =
|
|
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
|
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
|
FE_CAN_8VSB | FE_CAN_16VSB |
|
|
FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_128 | FE_CAN_QAM_256
|
|
},
|
|
|
|
.release = bcm3510_release,
|
|
|
|
.init = bcm3510_init,
|
|
.sleep = bcm3510_sleep,
|
|
|
|
.set_frontend = bcm3510_set_frontend,
|
|
.get_tune_settings = bcm3510_get_tune_settings,
|
|
|
|
.read_status = bcm3510_read_status,
|
|
.read_ber = bcm3510_read_ber,
|
|
.read_signal_strength = bcm3510_read_signal_strength,
|
|
.read_snr = bcm3510_read_snr,
|
|
.read_ucblocks = bcm3510_read_unc,
|
|
};
|
|
|
|
MODULE_DESCRIPTION("Broadcom BCM3510 ATSC (8VSB/16VSB & ITU J83 AnnexB FEC QAM64/256) demodulator driver");
|
|
MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
|
|
MODULE_LICENSE("GPL");
|