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ypr0: Fix ascodec_readbytes().

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31429 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2011-12-25 18:23:17 +00:00
parent 1dcc834e59
commit 16784598ac
1 changed files with 6 additions and 4 deletions
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10
firmware/target/hosted/ypr0/ascodec-ypr0.c
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@ -104,13 +104,14 @@ int ascodec_readbytes(unsigned int index, unsigned int len, unsigned char *data)
{
int i, val, ret = 0;
for (i = index; i < (int)len; i++) {
val = ascodec_read(i);
for (i = 0; i < (int)len; i++)
{
val = ascodec_read(i + index);
if (val >= 0) data[i] = val;
else ret = -1;
}
return ret ?: i; /* i means success */
return (ret ?: (int)len);
}
/*
@ -144,7 +145,8 @@ unsigned short adc_read(int channel)
unsigned char buf[2];
/* Read data */
ascodec_readbytes(AS3514_ADC_0, sizeof(buf), buf);
if (ascodec_readbytes(AS3514_ADC_0, 2, buf) < 0)
return 0;
/* decode to 10-bit and return */
return (((buf[0] & 0x3) << 8) | buf[1]);