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util/spkmodem-recv: make ringpos a global variable 

there's no point passing it as argument to a
function. it's used across more than one function,
so make it global

Signed-off-by: Leah Rowe <leah@libreboot.org>
fsdg20230625
Leah Rowe 2023-06-05 15:38:36 +01:00
parent 334bfedfd4
commit f2822db9dd
1 changed files with 4 additions and 5 deletions
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9
util/spkmodem_recv/spkmodem-recv.c
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@ -23,12 +23,12 @@
#define reset_char() ascii = 0, ascii_bit = 7 #define reset_char() ascii = 0, ascii_bit = 7
signed short frame[2 * SAMPLES_PER_FRAME], pulse[2 * SAMPLES_PER_FRAME]; signed short frame[2 * SAMPLES_PER_FRAME], pulse[2 * SAMPLES_PER_FRAME];
int debug, freq_data, freq_separator, sample_count, ascii_bit = 7; int ringpos, debug, freq_data, freq_separator, sample_count, ascii_bit = 7;
char ascii = 0; char ascii = 0;
void handle_audio(void); void handle_audio(void);
void fetch_sample(void); void fetch_sample(void);
void read_frame(int ringpos); void read_frame(void);
int set_ascii_bit(void); int set_ascii_bit(void);
void print_char(void); void print_char(void);
void print_stats(void); void print_stats(void);
@ -75,14 +75,13 @@ handle_audio(void)
void void
fetch_sample(void) fetch_sample(void)
{ {
static int ringpos = 0;
freq_data -= pulse[ringpos]; freq_data -= pulse[ringpos];
freq_data += pulse[(ringpos + SAMPLES_PER_FRAME) freq_data += pulse[(ringpos + SAMPLES_PER_FRAME)
% (2 * SAMPLES_PER_FRAME)]; % (2 * SAMPLES_PER_FRAME)];
freq_separator -= pulse[(ringpos + SAMPLES_PER_FRAME) freq_separator -= pulse[(ringpos + SAMPLES_PER_FRAME)
% (2 * SAMPLES_PER_FRAME)]; % (2 * SAMPLES_PER_FRAME)];
read_frame(ringpos); read_frame();
if ((pulse[ringpos] = (abs(frame[ringpos]) > THRESHOLD) ? 1 : 0)) if ((pulse[ringpos] = (abs(frame[ringpos]) > THRESHOLD) ? 1 : 0))
++freq_separator; ++freq_separator;
++ringpos; ++ringpos;
@ -91,7 +90,7 @@ fetch_sample(void)
} }
void void
read_frame(int ringpos) read_frame(void)
{ {
if ((fread(frame + ringpos, 1, sizeof(frame[0]), stdin) if ((fread(frame + ringpos, 1, sizeof(frame[0]), stdin)
!= sizeof(frame[0])) || (ferror(stdin) != 0)) != sizeof(frame[0])) || (ferror(stdin) != 0))