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lib:platform: Fix sbi_getc return type.

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As per the current SBI specification, sbi_getc should return
an int instead of char.

In case of FIFO is empty, return -1 as per the specification.

Reported-by: Sergi Granell <xerpi.g.12@gmail.com>
Suggested-by:Thadeu Lima de Souza Cascardo <cascardo@cascardo.eti.br>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Atish Patra
2019-02-27 17:42:17 -08:00
committed by Anup Patel
parent 05602e2bf4
commit 86cc9b8633
11 changed files with 20 additions and 19 deletions
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4
platform/kendryte/k210/uarths.c
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@@ -48,12 +48,12 @@ void uarths_putc(char c)
uarths->txdata.data = (u8)c;
}
char uarths_getc(void)
int uarths_getc(void)
{
struct uarths_rxdata rx = uarths->rxdata;
if (rx.empty)
return '\0';
return -1;
return rx.data;
}