altos/lpc,altos/stmf0: Use -n flag to work around link editor issue

[fw/altos] / src / stmf0 / ao_arch_funcs.h

diff --git a/src/stmf0/ao_arch_funcs.h b/src/stmf0/ao_arch_funcs.h
index 01a20c73daf7fbb0c6fda2f999da0806705b5510..0cb0e43d9c3c890b06c283e0e85e1cf131b267f2 100644 (file)
--- a/src/stmf0/ao_arch_funcs.h
+++ b/src/stmf0/ao_arch_funcs.h
@@ -83,7 +83,57 @@ void
 ao_spi_send_fixed(uint8_t value, uint16_t len, uint8_t spi_index);
 
 void
-ao_spi_send_sync(void *block, uint16_t len, uint8_t spi_index);
+ao_spi_send_sync(const void *block, uint16_t len, uint8_t spi_index);
+
+void
+ao_spi_start_bytes(uint8_t spi_index);
+
+void
+ao_spi_stop_bytes(uint8_t spi_index);
+
+static inline void
+ao_spi_send_byte(uint8_t byte, uint8_t spi_index)
+{
+       struct stm_spi  *stm_spi;
+
+       switch (AO_SPI_INDEX(spi_index)) {
+       case 0:
+               stm_spi = &stm_spi1;
+               break;
+       case 1:
+               stm_spi = &stm_spi2;
+               break;
+       }
+
+       while (!(stm_spi->sr & (1 << STM_SPI_SR_TXE)))
+               ;
+       stm_spi->dr = byte;
+       while (!(stm_spi->sr & (1 << STM_SPI_SR_RXNE)))
+               ;
+       (void) stm_spi->dr;
+}
+
+static inline uint8_t
+ao_spi_recv_byte(uint8_t spi_index)
+{
+       struct stm_spi  *stm_spi;
+
+       switch (AO_SPI_INDEX(spi_index)) {
+       case 0:
+               stm_spi = &stm_spi1;
+               break;
+       case 1:
+               stm_spi = &stm_spi2;
+               break;
+       }
+
+       while (!(stm_spi->sr & (1 << STM_SPI_SR_TXE)))
+               ;
+       stm_spi->dr = 0xff;
+       while (!(stm_spi->sr & (1 << STM_SPI_SR_RXNE)))
+               ;
+       return stm_spi->dr;
+}
 
 void
 ao_spi_recv(void *block, uint16_t len, uint8_t spi_index);
@@ -305,7 +355,7 @@ ao_arch_memory_barrier() {
 static inline void
 ao_arch_init_stack(struct ao_task *task, void *start)
 {
-       uint32_t        *sp = (uint32_t *) (task->stack + AO_STACK_SIZE);
+       uint32_t        *sp = (uint32_t *) ((void *) task->stack + AO_STACK_SIZE);
        uint32_t        a = (uint32_t) start;
        int             i;