cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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flexcop-misc.c (2441B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
      4 * flexcop-misc.c - miscellaneous functions
      5 * see flexcop.c for copyright information
      6 */
      7#include "flexcop.h"
      8
      9void flexcop_determine_revision(struct flexcop_device *fc)
     10{
     11	flexcop_ibi_value v = fc->read_ibi_reg(fc,misc_204);
     12
     13	switch (v.misc_204.Rev_N_sig_revision_hi) {
     14	case 0x2:
     15		deb_info("found a FlexCopII.\n");
     16		fc->rev = FLEXCOP_II;
     17		break;
     18	case 0x3:
     19		deb_info("found a FlexCopIIb.\n");
     20		fc->rev = FLEXCOP_IIB;
     21		break;
     22	case 0x0:
     23		deb_info("found a FlexCopIII.\n");
     24		fc->rev = FLEXCOP_III;
     25		break;
     26	default:
     27		err("unknown FlexCop Revision: %x. Please report this to linux-dvb@linuxtv.org.",
     28				v.misc_204.Rev_N_sig_revision_hi);
     29		break;
     30	}
     31
     32	if ((fc->has_32_hw_pid_filter = v.misc_204.Rev_N_sig_caps))
     33		deb_info("this FlexCop has the additional 32 hardware pid filter.\n");
     34	else
     35		deb_info("this FlexCop has the 6 basic main hardware pid filter.\n");
     36	/* bus parts have to decide if hw pid filtering is used or not. */
     37}
     38
     39static const char *flexcop_revision_names[] = {
     40	"Unknown chip",
     41	"FlexCopII",
     42	"FlexCopIIb",
     43	"FlexCopIII",
     44};
     45
     46static const char *flexcop_device_names[] = {
     47	[FC_UNK]	= "Unknown device",
     48	[FC_CABLE]	= "Cable2PC/CableStar 2 DVB-C",
     49	[FC_AIR_DVBT]	= "Air2PC/AirStar 2 DVB-T",
     50	[FC_AIR_ATSC1]	= "Air2PC/AirStar 2 ATSC 1st generation",
     51	[FC_AIR_ATSC2]	= "Air2PC/AirStar 2 ATSC 2nd generation",
     52	[FC_AIR_ATSC3]	= "Air2PC/AirStar 2 ATSC 3rd generation (HD5000)",
     53	[FC_SKY_REV23]	= "Sky2PC/SkyStar 2 DVB-S rev 2.3 (old version)",
     54	[FC_SKY_REV26]	= "Sky2PC/SkyStar 2 DVB-S rev 2.6",
     55	[FC_SKY_REV27]	= "Sky2PC/SkyStar 2 DVB-S rev 2.7a/u",
     56	[FC_SKY_REV28]	= "Sky2PC/SkyStar 2 DVB-S rev 2.8",
     57	[FC_SKYS2_REV33] = "Sky2PC/SkyStar S2 DVB-S/S2 rev 3.3",
     58};
     59
     60static const char *flexcop_bus_names[] = {
     61	"USB",
     62	"PCI",
     63};
     64
     65void flexcop_device_name(struct flexcop_device *fc,
     66		const char *prefix, const char *suffix)
     67{
     68	info("%s '%s' at the '%s' bus controlled by a '%s' %s",
     69			prefix,	flexcop_device_names[fc->dev_type],
     70			flexcop_bus_names[fc->bus_type],
     71			flexcop_revision_names[fc->rev], suffix);
     72}
     73
     74void flexcop_dump_reg(struct flexcop_device *fc,
     75		flexcop_ibi_register reg, int num)
     76{
     77	flexcop_ibi_value v;
     78	int i;
     79	for (i = 0; i < num; i++) {
     80		v = fc->read_ibi_reg(fc, reg+4*i);
     81		deb_rdump("0x%03x: %08x, ", reg+4*i, v.raw);
     82	}
     83	deb_rdump("\n");
     84}
     85EXPORT_SYMBOL(flexcop_dump_reg);