199 lines
5.9 KiB
C
199 lines
5.9 KiB
C
![]() |
/*
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* This file is part of linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
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*
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* flexcop-hw-filter.c - pid and mac address filtering and corresponding control functions.
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*
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* see flexcop.c for copyright information.
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*/
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#include "flexcop.h"
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static void flexcop_rcv_data_ctrl(struct flexcop_device *fc, int onoff)
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{
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flexcop_set_ibi_value(ctrl_208,Rcv_Data_sig,onoff);
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}
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void flexcop_smc_ctrl(struct flexcop_device *fc, int onoff)
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{
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flexcop_set_ibi_value(ctrl_208,SMC_Enable_sig,onoff);
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}
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void flexcop_null_filter_ctrl(struct flexcop_device *fc, int onoff)
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{
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flexcop_set_ibi_value(ctrl_208,Null_filter_sig,onoff);
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}
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void flexcop_set_mac_filter(struct flexcop_device *fc, u8 mac[6])
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{
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flexcop_ibi_value v418,v41c;
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v41c = fc->read_ibi_reg(fc,mac_address_41c);
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v418.mac_address_418.MAC1 = mac[0];
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v418.mac_address_418.MAC2 = mac[1];
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v418.mac_address_418.MAC3 = mac[2];
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v418.mac_address_418.MAC6 = mac[3];
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v41c.mac_address_41c.MAC7 = mac[4];
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v41c.mac_address_41c.MAC8 = mac[5];
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fc->write_ibi_reg(fc,mac_address_418,v418);
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fc->write_ibi_reg(fc,mac_address_41c,v41c);
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}
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void flexcop_mac_filter_ctrl(struct flexcop_device *fc, int onoff)
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{
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flexcop_set_ibi_value(ctrl_208,MAC_filter_Mode_sig,onoff);
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}
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static void flexcop_pid_group_filter(struct flexcop_device *fc, u16 pid, u16 mask)
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{
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/* index_reg_310.extra_index_reg need to 0 or 7 to work */
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flexcop_ibi_value v30c;
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v30c.pid_filter_30c_ext_ind_0_7.Group_PID = pid;
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v30c.pid_filter_30c_ext_ind_0_7.Group_mask = mask;
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fc->write_ibi_reg(fc,pid_filter_30c,v30c);
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}
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static void flexcop_pid_group_filter_ctrl(struct flexcop_device *fc, int onoff)
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{
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flexcop_set_ibi_value(ctrl_208,Mask_filter_sig,onoff);
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}
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/* this fancy define reduces the code size of the quite similar PID controlling of
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* the first 6 PIDs
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*/
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#define pid_ctrl(vregname,field,enablefield,trans_field,transval) \
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flexcop_ibi_value vpid = fc->read_ibi_reg(fc, vregname), \
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v208 = fc->read_ibi_reg(fc, ctrl_208); \
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\
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vpid.vregname.field = onoff ? pid : 0x1fff; \
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vpid.vregname.trans_field = transval; \
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v208.ctrl_208.enablefield = onoff; \
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\
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fc->write_ibi_reg(fc,vregname,vpid); \
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fc->write_ibi_reg(fc,ctrl_208,v208);
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static void flexcop_pid_Stream1_PID_ctrl(struct flexcop_device *fc, u16 pid, int onoff)
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{
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pid_ctrl(pid_filter_300,Stream1_PID,Stream1_filter_sig,Stream1_trans,0);
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}
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static void flexcop_pid_Stream2_PID_ctrl(struct flexcop_device *fc, u16 pid, int onoff)
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{
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pid_ctrl(pid_filter_300,Stream2_PID,Stream2_filter_sig,Stream2_trans,0);
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}
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static void flexcop_pid_PCR_PID_ctrl(struct flexcop_device *fc, u16 pid, int onoff)
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{
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pid_ctrl(pid_filter_304,PCR_PID,PCR_filter_sig,PCR_trans,0);
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}
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static void flexcop_pid_PMT_PID_ctrl(struct flexcop_device *fc, u16 pid, int onoff)
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{
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pid_ctrl(pid_filter_304,PMT_PID,PMT_filter_sig,PMT_trans,0);
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}
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static void flexcop_pid_EMM_PID_ctrl(struct flexcop_device *fc, u16 pid, int onoff)
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{
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pid_ctrl(pid_filter_308,EMM_PID,EMM_filter_sig,EMM_trans,0);
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}
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static void flexcop_pid_ECM_PID_ctrl(struct flexcop_device *fc, u16 pid, int onoff)
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{
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pid_ctrl(pid_filter_308,ECM_PID,ECM_filter_sig,ECM_trans,0);
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}
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static void flexcop_pid_control(struct flexcop_device *fc, int index, u16 pid,int onoff)
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{
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deb_ts("setting pid: %5d %04x at index %d '%s'\n",pid,pid,index,onoff ? "on" : "off");
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/* We could use bit magic here to reduce source code size.
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* I decided against it, but to use the real register names */
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switch (index) {
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case 0: flexcop_pid_Stream1_PID_ctrl(fc,pid,onoff); break;
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case 1: flexcop_pid_Stream2_PID_ctrl(fc,pid,onoff); break;
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case 2: flexcop_pid_PCR_PID_ctrl(fc,pid,onoff); break;
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case 3: flexcop_pid_PMT_PID_ctrl(fc,pid,onoff); break;
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case 4: flexcop_pid_EMM_PID_ctrl(fc,pid,onoff); break;
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case 5: flexcop_pid_ECM_PID_ctrl(fc,pid,onoff); break;
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default:
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if (fc->has_32_hw_pid_filter && index < 38) {
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flexcop_ibi_value vpid,vid;
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/* set the index */
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vid = fc->read_ibi_reg(fc,index_reg_310);
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vid.index_reg_310.index_reg = index - 6;
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fc->write_ibi_reg(fc,index_reg_310, vid);
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vpid = fc->read_ibi_reg(fc,pid_n_reg_314);
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vpid.pid_n_reg_314.PID = onoff ? pid : 0x1fff;
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vpid.pid_n_reg_314.PID_enable_bit = onoff;
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fc->write_ibi_reg(fc,pid_n_reg_314, vpid);
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}
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break;
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}
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}
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int flexcop_pid_feed_control(struct flexcop_device *fc, struct dvb_demux_feed *dvbdmxfeed, int onoff)
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{
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int max_pid_filter = 6 + fc->has_32_hw_pid_filter*32;
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fc->feedcount += (onoff ? 1 : -1);
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/* when doing hw pid filtering, set the pid */
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if (fc->pid_filtering)
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flexcop_pid_control(fc,dvbdmxfeed->index,dvbdmxfeed->pid,onoff);
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/* if it was the first feed request */
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if (fc->feedcount == onoff && onoff) {
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if (!fc->pid_filtering) {
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deb_ts("enabling full TS transfer\n");
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flexcop_pid_group_filter(fc, 0,0);
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flexcop_pid_group_filter_ctrl(fc,1);
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}
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if (fc->stream_control)
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fc->stream_control(fc,1);
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flexcop_rcv_data_ctrl(fc,1);
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/* if there is no more feed left to feed */
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} else if (fc->feedcount == onoff && !onoff) {
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if (!fc->pid_filtering) {
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deb_ts("disabling full TS transfer\n");
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flexcop_pid_group_filter(fc, 0x1fe0,0);
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flexcop_pid_group_filter_ctrl(fc,0);
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}
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flexcop_rcv_data_ctrl(fc,0);
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if (fc->stream_control)
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fc->stream_control(fc,0);
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}
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/* if pid_filtering is on and more pids than the hw-filter can provide are
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* requested enable the whole bandwidth.
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*/
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if (fc->pid_filtering && fc->feedcount > max_pid_filter) {
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flexcop_pid_group_filter(fc, 0,0);
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flexcop_pid_group_filter_ctrl(fc,1);
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} else if (fc->pid_filtering && fc->feedcount <= max_pid_filter) {
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flexcop_pid_group_filter(fc, 0x1fe0,0);
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flexcop_pid_group_filter_ctrl(fc,0);
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}
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return 0;
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}
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void flexcop_hw_filter_init(struct flexcop_device *fc)
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{
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int i;
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flexcop_ibi_value v;
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for (i = 0; i < 6 + 32*fc->has_32_hw_pid_filter; i++)
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flexcop_pid_control(fc,i,0x1fff,0);
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flexcop_pid_group_filter(fc, 0x1fe0,0);
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v = fc->read_ibi_reg(fc,pid_filter_308);
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v.pid_filter_308.EMM_filter_4 = 1;
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v.pid_filter_308.EMM_filter_6 = 0;
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fc->write_ibi_reg(fc,pid_filter_308,v);
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}
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