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2504ba9f59
Based on 1 normalized pattern(s): 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 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 53 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190602204653.904365654@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
309 lines
7.5 KiB
C
309 lines
7.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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*
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* Copyright (C) 2005 Mike Isely <isely@pobox.com>
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*/
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#include <linux/string.h>
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#include "pvrusb2-debugifc.h"
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#include "pvrusb2-hdw.h"
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#include "pvrusb2-debug.h"
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struct debugifc_mask_item {
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const char *name;
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unsigned long msk;
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};
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static unsigned int debugifc_count_whitespace(const char *buf,
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unsigned int count)
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{
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unsigned int scnt;
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char ch;
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for (scnt = 0; scnt < count; scnt++) {
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ch = buf[scnt];
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if (ch == ' ') continue;
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if (ch == '\t') continue;
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if (ch == '\n') continue;
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break;
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}
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return scnt;
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}
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static unsigned int debugifc_count_nonwhitespace(const char *buf,
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unsigned int count)
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{
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unsigned int scnt;
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char ch;
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for (scnt = 0; scnt < count; scnt++) {
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ch = buf[scnt];
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if (ch == ' ') break;
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if (ch == '\t') break;
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if (ch == '\n') break;
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}
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return scnt;
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}
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static unsigned int debugifc_isolate_word(const char *buf,unsigned int count,
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const char **wstrPtr,
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unsigned int *wlenPtr)
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{
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const char *wptr;
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unsigned int consume_cnt = 0;
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unsigned int wlen;
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unsigned int scnt;
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wptr = NULL;
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wlen = 0;
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scnt = debugifc_count_whitespace(buf,count);
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consume_cnt += scnt; count -= scnt; buf += scnt;
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if (!count) goto done;
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scnt = debugifc_count_nonwhitespace(buf,count);
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if (!scnt) goto done;
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wptr = buf;
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wlen = scnt;
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consume_cnt += scnt; count -= scnt; buf += scnt;
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done:
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*wstrPtr = wptr;
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*wlenPtr = wlen;
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return consume_cnt;
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}
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static int debugifc_parse_unsigned_number(const char *buf,unsigned int count,
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u32 *num_ptr)
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{
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u32 result = 0;
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int radix = 10;
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if ((count >= 2) && (buf[0] == '0') &&
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((buf[1] == 'x') || (buf[1] == 'X'))) {
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radix = 16;
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count -= 2;
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buf += 2;
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} else if ((count >= 1) && (buf[0] == '0')) {
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radix = 8;
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}
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while (count--) {
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int val = hex_to_bin(*buf++);
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if (val < 0 || val >= radix)
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return -EINVAL;
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result *= radix;
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result += val;
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}
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*num_ptr = result;
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return 0;
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}
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static int debugifc_match_keyword(const char *buf,unsigned int count,
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const char *keyword)
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{
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unsigned int kl;
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if (!keyword) return 0;
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kl = strlen(keyword);
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if (kl != count) return 0;
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return !memcmp(buf,keyword,kl);
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}
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int pvr2_debugifc_print_info(struct pvr2_hdw *hdw,char *buf,unsigned int acnt)
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{
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int bcnt = 0;
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int ccnt;
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ccnt = scnprintf(buf, acnt, "Driver hardware description: %s\n",
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pvr2_hdw_get_desc(hdw));
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bcnt += ccnt; acnt -= ccnt; buf += ccnt;
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ccnt = scnprintf(buf,acnt,"Driver state info:\n");
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bcnt += ccnt; acnt -= ccnt; buf += ccnt;
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ccnt = pvr2_hdw_state_report(hdw,buf,acnt);
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bcnt += ccnt; acnt -= ccnt; buf += ccnt;
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return bcnt;
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}
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int pvr2_debugifc_print_status(struct pvr2_hdw *hdw,
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char *buf,unsigned int acnt)
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{
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int bcnt = 0;
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int ccnt;
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int ret;
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u32 gpio_dir,gpio_in,gpio_out;
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struct pvr2_stream_stats stats;
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struct pvr2_stream *sp;
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ret = pvr2_hdw_is_hsm(hdw);
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ccnt = scnprintf(buf,acnt,"USB link speed: %s\n",
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(ret < 0 ? "FAIL" : (ret ? "high" : "full")));
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bcnt += ccnt; acnt -= ccnt; buf += ccnt;
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gpio_dir = 0; gpio_in = 0; gpio_out = 0;
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pvr2_hdw_gpio_get_dir(hdw,&gpio_dir);
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pvr2_hdw_gpio_get_out(hdw,&gpio_out);
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pvr2_hdw_gpio_get_in(hdw,&gpio_in);
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ccnt = scnprintf(buf,acnt,"GPIO state: dir=0x%x in=0x%x out=0x%x\n",
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gpio_dir,gpio_in,gpio_out);
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bcnt += ccnt; acnt -= ccnt; buf += ccnt;
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ccnt = scnprintf(buf,acnt,"Streaming is %s\n",
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pvr2_hdw_get_streaming(hdw) ? "on" : "off");
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bcnt += ccnt; acnt -= ccnt; buf += ccnt;
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sp = pvr2_hdw_get_video_stream(hdw);
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if (sp) {
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pvr2_stream_get_stats(sp, &stats, 0);
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ccnt = scnprintf(
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buf,acnt,
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"Bytes streamed=%u URBs: queued=%u idle=%u ready=%u processed=%u failed=%u\n",
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stats.bytes_processed,
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stats.buffers_in_queue,
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stats.buffers_in_idle,
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stats.buffers_in_ready,
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stats.buffers_processed,
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stats.buffers_failed);
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bcnt += ccnt; acnt -= ccnt; buf += ccnt;
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}
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return bcnt;
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}
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static int pvr2_debugifc_do1cmd(struct pvr2_hdw *hdw,const char *buf,
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unsigned int count)
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{
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const char *wptr;
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unsigned int wlen;
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unsigned int scnt;
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scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
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if (!scnt) return 0;
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count -= scnt; buf += scnt;
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if (!wptr) return 0;
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pvr2_trace(PVR2_TRACE_DEBUGIFC,"debugifc cmd: \"%.*s\"",wlen,wptr);
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if (debugifc_match_keyword(wptr,wlen,"reset")) {
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scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
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if (!scnt) return -EINVAL;
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count -= scnt; buf += scnt;
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if (!wptr) return -EINVAL;
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if (debugifc_match_keyword(wptr,wlen,"cpu")) {
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pvr2_hdw_cpureset_assert(hdw,!0);
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pvr2_hdw_cpureset_assert(hdw,0);
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return 0;
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} else if (debugifc_match_keyword(wptr,wlen,"bus")) {
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pvr2_hdw_device_reset(hdw);
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} else if (debugifc_match_keyword(wptr,wlen,"soft")) {
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return pvr2_hdw_cmd_powerup(hdw);
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} else if (debugifc_match_keyword(wptr,wlen,"deep")) {
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return pvr2_hdw_cmd_deep_reset(hdw);
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} else if (debugifc_match_keyword(wptr,wlen,"firmware")) {
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return pvr2_upload_firmware2(hdw);
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} else if (debugifc_match_keyword(wptr,wlen,"decoder")) {
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return pvr2_hdw_cmd_decoder_reset(hdw);
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} else if (debugifc_match_keyword(wptr,wlen,"worker")) {
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return pvr2_hdw_untrip(hdw);
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} else if (debugifc_match_keyword(wptr,wlen,"usbstats")) {
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pvr2_stream_get_stats(pvr2_hdw_get_video_stream(hdw),
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NULL, !0);
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return 0;
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}
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return -EINVAL;
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} else if (debugifc_match_keyword(wptr,wlen,"cpufw")) {
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scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
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if (!scnt) return -EINVAL;
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count -= scnt; buf += scnt;
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if (!wptr) return -EINVAL;
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if (debugifc_match_keyword(wptr,wlen,"fetch")) {
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scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
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if (scnt && wptr) {
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count -= scnt; buf += scnt;
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if (debugifc_match_keyword(wptr, wlen,
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"prom")) {
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pvr2_hdw_cpufw_set_enabled(hdw, 2, !0);
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} else if (debugifc_match_keyword(wptr, wlen,
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"ram8k")) {
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pvr2_hdw_cpufw_set_enabled(hdw, 0, !0);
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} else if (debugifc_match_keyword(wptr, wlen,
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"ram16k")) {
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pvr2_hdw_cpufw_set_enabled(hdw, 1, !0);
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} else {
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return -EINVAL;
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}
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}
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pvr2_hdw_cpufw_set_enabled(hdw,0,!0);
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return 0;
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} else if (debugifc_match_keyword(wptr,wlen,"done")) {
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pvr2_hdw_cpufw_set_enabled(hdw,0,0);
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return 0;
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} else {
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return -EINVAL;
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}
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} else if (debugifc_match_keyword(wptr,wlen,"gpio")) {
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int dir_fl = 0;
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int ret;
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u32 msk,val;
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scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
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if (!scnt) return -EINVAL;
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count -= scnt; buf += scnt;
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if (!wptr) return -EINVAL;
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if (debugifc_match_keyword(wptr,wlen,"dir")) {
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dir_fl = !0;
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} else if (!debugifc_match_keyword(wptr,wlen,"out")) {
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return -EINVAL;
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}
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scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
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if (!scnt) return -EINVAL;
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count -= scnt; buf += scnt;
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if (!wptr) return -EINVAL;
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ret = debugifc_parse_unsigned_number(wptr,wlen,&msk);
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if (ret) return ret;
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scnt = debugifc_isolate_word(buf,count,&wptr,&wlen);
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if (wptr) {
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ret = debugifc_parse_unsigned_number(wptr,wlen,&val);
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if (ret) return ret;
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} else {
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val = msk;
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msk = 0xffffffff;
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}
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if (dir_fl) {
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ret = pvr2_hdw_gpio_chg_dir(hdw,msk,val);
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} else {
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ret = pvr2_hdw_gpio_chg_out(hdw,msk,val);
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}
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return ret;
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}
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pvr2_trace(PVR2_TRACE_DEBUGIFC,
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"debugifc failed to recognize cmd: \"%.*s\"",wlen,wptr);
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return -EINVAL;
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}
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int pvr2_debugifc_docmd(struct pvr2_hdw *hdw,const char *buf,
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unsigned int count)
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{
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unsigned int bcnt = 0;
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int ret;
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while (count) {
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for (bcnt = 0; bcnt < count; bcnt++) {
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if (buf[bcnt] == '\n') break;
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}
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ret = pvr2_debugifc_do1cmd(hdw,buf,bcnt);
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if (ret < 0) return ret;
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if (bcnt < count) bcnt++;
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buf += bcnt;
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count -= bcnt;
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}
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return 0;
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}
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