altos: Make stdio 8-bit clean by making pollchar return int

[fw/altos] / src / cc1111 / ao_usb.c

diff --git a/src/cc1111/ao_usb.c b/src/cc1111/ao_usb.c
index ce26e8088a4cfee539b78bb82ea54538dab1af9d..81e9074ea44c6905274cb0ac72fff96cffccacb0 100644 (file)
--- a/src/cc1111/ao_usb.c
+++ b/src/cc1111/ao_usb.c
@@ -382,19 +382,19 @@ ao_usb_putchar(char c) __critical __reentrant
                ao_usb_in_send();
 }
 
-char
+int
 ao_usb_pollchar(void) __critical
 {
-       char c;
+       uint8_t c;
        if (ao_usb_out_bytes == 0) {
                USBINDEX = AO_USB_OUT_EP;
                if ((USBCSOL & USBCSOL_OUTPKT_RDY) == 0)
-                       return AO_READ_AGAIN;
+                       return -1;
                ao_usb_out_bytes = (USBCNTH << 8) | USBCNTL;
                if (ao_usb_out_bytes == 0) {
                        USBINDEX = AO_USB_OUT_EP;
                        USBCSOL &= ~USBCSOL_OUTPKT_RDY;
-                       return AO_READ_AGAIN;
+                       return -1;
                }
        }
        --ao_usb_out_bytes;
@@ -409,9 +409,9 @@ ao_usb_pollchar(void) __critical
 char
 ao_usb_getchar(void) __critical
 {
-       char    c;
+       int     c;
 
-       while ((c = ao_usb_pollchar()) == AO_READ_AGAIN)
+       while ((c = ao_usb_pollchar()) == -1)
                ao_sleep(&ao_stdin_ready);
        return c;
 }