diff options
Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-debugifc.c')
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-debugifc.c | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-debugifc.c b/drivers/media/usb/pvrusb2/pvrusb2-debugifc.c new file mode 100644 index 0000000000..84cfb5ce8b --- /dev/null +++ b/drivers/media/usb/pvrusb2/pvrusb2-debugifc.c @@ -0,0 +1,308 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + */ + +#include <linux/string.h> +#include "pvrusb2-debugifc.h" +#include "pvrusb2-hdw.h" +#include "pvrusb2-debug.h" + +struct debugifc_mask_item { + const char *name; + unsigned long msk; +}; + + +static unsigned int debugifc_count_whitespace(const char *buf, + unsigned int count) +{ + unsigned int scnt; + char ch; + + for (scnt = 0; scnt < count; scnt++) { + ch = buf[scnt]; + if (ch == ' ') continue; + if (ch == '\t') continue; + if (ch == '\n') continue; + break; + } + return scnt; +} + + +static unsigned int debugifc_count_nonwhitespace(const char *buf, + unsigned int count) +{ + unsigned int scnt; + char ch; + + for (scnt = 0; scnt < count; scnt++) { + ch = buf[scnt]; + if (ch == ' ') break; + if (ch == '\t') break; + if (ch == '\n') break; + } + return scnt; +} + + +static unsigned int debugifc_isolate_word(const char *buf,unsigned int count, + const char **wstrPtr, + unsigned int *wlenPtr) +{ + const char *wptr; + unsigned int consume_cnt = 0; + unsigned int wlen; + unsigned int scnt; + + wptr = NULL; + wlen = 0; + scnt = debugifc_count_whitespace(buf,count); + consume_cnt += scnt; count -= scnt; buf += scnt; + if (!count) goto done; + + scnt = debugifc_count_nonwhitespace(buf,count); + if (!scnt) goto done; + wptr = buf; + wlen = scnt; + consume_cnt += scnt; count -= scnt; buf += scnt; + + done: + *wstrPtr = wptr; + *wlenPtr = wlen; + return consume_cnt; +} + + +static int debugifc_parse_unsigned_number(const char *buf,unsigned int count, + u32 *num_ptr) +{ + u32 result = 0; + int radix = 10; + if ((count >= 2) && (buf[0] == '0') && + ((buf[1] == 'x') || (buf[1] == 'X'))) { + radix = 16; + count -= 2; + buf += 2; + } else if ((count >= 1) && (buf[0] == '0')) { + radix = 8; + } + + while (count--) { + int val = hex_to_bin(*buf++); + if (val < 0 || val >= radix) + return -EINVAL; + result *= radix; + result += val; + } + *num_ptr = result; + return 0; +} + + +static int debugifc_match_keyword(const char *buf,unsigned int count, + const char *keyword) +{ + unsigned int kl; + if (!keyword) return 0; + kl = strlen(keyword); + if (kl != count) return 0; + return !memcmp(buf,keyword,kl); +} + + +int pvr2_debugifc_print_info(struct pvr2_hdw *hdw,char *buf,unsigned int acnt) +{ + int bcnt = 0; + int ccnt; + ccnt = scnprintf(buf, acnt, "Driver hardware description: %s\n", + pvr2_hdw_get_desc(hdw)); + bcnt += ccnt; acnt -= ccnt; buf += ccnt; + ccnt = scnprintf(buf,acnt,"Driver state info:\n"); + bcnt += ccnt; acnt -= ccnt; buf += ccnt; + ccnt = pvr2_hdw_state_report(hdw,buf,acnt); + bcnt += ccnt; acnt -= ccnt; buf += ccnt; + + return bcnt; +} + + +int pvr2_debugifc_print_status(struct pvr2_hdw *hdw, + char *buf,unsigned int acnt) +{ + int bcnt = 0; + int ccnt; + int ret; + u32 gpio_dir,gpio_in,gpio_out; + struct pvr2_stream_stats stats; + struct pvr2_stream *sp; + + ret = pvr2_hdw_is_hsm(hdw); + ccnt = scnprintf(buf,acnt,"USB link speed: %s\n", + (ret < 0 ? "FAIL" : (ret ? "high" : "full"))); + bcnt += ccnt; acnt -= ccnt; buf += ccnt; + + gpio_dir = 0; gpio_in = 0; gpio_out = 0; + pvr2_hdw_gpio_get_dir(hdw,&gpio_dir); + pvr2_hdw_gpio_get_out(hdw,&gpio_out); + pvr2_hdw_gpio_get_in(hdw,&gpio_in); + ccnt = scnprintf(buf,acnt,"GPIO state: dir=0x%x in=0x%x out=0x%x\n", + gpio_dir,gpio_in,gpio_out); + bcnt += ccnt; acnt -= ccnt; buf += ccnt; + + ccnt = scnprintf(buf,acnt,"Streaming is %s\n", + pvr2_hdw_get_streaming(hdw) ? "on" : "off"); + bcnt += ccnt; acnt -= ccnt; buf += ccnt; + + + sp = pvr2_hdw_get_video_stream(hdw); + if (sp) { + pvr2_stream_get_stats(sp, &stats, 0); + ccnt = scnprintf( + buf,acnt, + "Bytes streamed=%u URBs: queued=%u idle=%u ready=%u processed=%u failed=%u\n", + stats.bytes_processed, + stats.buffers_in_queue, + stats.buffers_in_idle, + stats.buffers_in_ready, + stats.buffers_processed, + stats.buffers_failed); + bcnt += ccnt; acnt -= ccnt; buf += ccnt; + } + + return bcnt; +} + + +static int pvr2_debugifc_do1cmd(struct pvr2_hdw *hdw,const char *buf, + unsigned int count) +{ + const char *wptr; + unsigned int wlen; + unsigned int scnt; + + scnt = debugifc_isolate_word(buf,count,&wptr,&wlen); + if (!scnt) return 0; + count -= scnt; buf += scnt; + if (!wptr) return 0; + + pvr2_trace(PVR2_TRACE_DEBUGIFC,"debugifc cmd: \"%.*s\"",wlen,wptr); + if (debugifc_match_keyword(wptr,wlen,"reset")) { + scnt = debugifc_isolate_word(buf,count,&wptr,&wlen); + if (!scnt) return -EINVAL; + count -= scnt; buf += scnt; + if (!wptr) return -EINVAL; + if (debugifc_match_keyword(wptr,wlen,"cpu")) { + pvr2_hdw_cpureset_assert(hdw,!0); + pvr2_hdw_cpureset_assert(hdw,0); + return 0; + } else if (debugifc_match_keyword(wptr,wlen,"bus")) { + pvr2_hdw_device_reset(hdw); + } else if (debugifc_match_keyword(wptr,wlen,"soft")) { + return pvr2_hdw_cmd_powerup(hdw); + } else if (debugifc_match_keyword(wptr,wlen,"deep")) { + return pvr2_hdw_cmd_deep_reset(hdw); + } else if (debugifc_match_keyword(wptr,wlen,"firmware")) { + return pvr2_upload_firmware2(hdw); + } else if (debugifc_match_keyword(wptr,wlen,"decoder")) { + return pvr2_hdw_cmd_decoder_reset(hdw); + } else if (debugifc_match_keyword(wptr,wlen,"worker")) { + return pvr2_hdw_untrip(hdw); + } else if (debugifc_match_keyword(wptr,wlen,"usbstats")) { + pvr2_stream_get_stats(pvr2_hdw_get_video_stream(hdw), + NULL, !0); + return 0; + } + return -EINVAL; + } else if (debugifc_match_keyword(wptr,wlen,"cpufw")) { + scnt = debugifc_isolate_word(buf,count,&wptr,&wlen); + if (!scnt) return -EINVAL; + count -= scnt; buf += scnt; + if (!wptr) return -EINVAL; + if (debugifc_match_keyword(wptr,wlen,"fetch")) { + scnt = debugifc_isolate_word(buf,count,&wptr,&wlen); + if (scnt && wptr) { + count -= scnt; buf += scnt; + if (debugifc_match_keyword(wptr, wlen, + "prom")) { + pvr2_hdw_cpufw_set_enabled(hdw, 2, !0); + } else if (debugifc_match_keyword(wptr, wlen, + "ram8k")) { + pvr2_hdw_cpufw_set_enabled(hdw, 0, !0); + } else if (debugifc_match_keyword(wptr, wlen, + "ram16k")) { + pvr2_hdw_cpufw_set_enabled(hdw, 1, !0); + } else { + return -EINVAL; + } + } + pvr2_hdw_cpufw_set_enabled(hdw,0,!0); + return 0; + } else if (debugifc_match_keyword(wptr,wlen,"done")) { + pvr2_hdw_cpufw_set_enabled(hdw,0,0); + return 0; + } else { + return -EINVAL; + } + } else if (debugifc_match_keyword(wptr,wlen,"gpio")) { + int dir_fl = 0; + int ret; + u32 msk,val; + scnt = debugifc_isolate_word(buf,count,&wptr,&wlen); + if (!scnt) return -EINVAL; + count -= scnt; buf += scnt; + if (!wptr) return -EINVAL; + if (debugifc_match_keyword(wptr,wlen,"dir")) { + dir_fl = !0; + } else if (!debugifc_match_keyword(wptr,wlen,"out")) { + return -EINVAL; + } + scnt = debugifc_isolate_word(buf,count,&wptr,&wlen); + if (!scnt) return -EINVAL; + count -= scnt; buf += scnt; + if (!wptr) return -EINVAL; + ret = debugifc_parse_unsigned_number(wptr,wlen,&msk); + if (ret) return ret; + scnt = debugifc_isolate_word(buf,count,&wptr,&wlen); + if (wptr) { + ret = debugifc_parse_unsigned_number(wptr,wlen,&val); + if (ret) return ret; + } else { + val = msk; + msk = 0xffffffff; + } + if (dir_fl) { + ret = pvr2_hdw_gpio_chg_dir(hdw,msk,val); + } else { + ret = pvr2_hdw_gpio_chg_out(hdw,msk,val); + } + return ret; + } + pvr2_trace(PVR2_TRACE_DEBUGIFC, + "debugifc failed to recognize cmd: \"%.*s\"",wlen,wptr); + return -EINVAL; +} + + +int pvr2_debugifc_docmd(struct pvr2_hdw *hdw,const char *buf, + unsigned int count) +{ + unsigned int bcnt = 0; + int ret; + + while (count) { + for (bcnt = 0; bcnt < count; bcnt++) { + if (buf[bcnt] == '\n') break; + } + + ret = pvr2_debugifc_do1cmd(hdw,buf,bcnt); + if (ret < 0) return ret; + if (bcnt < count) bcnt++; + buf += bcnt; + count -= bcnt; + } + + return 0; +} |