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-rw-r--r--examples/usart/usart.c8
-rw-r--r--include/libopenstm32/usart.h112
-rw-r--r--lib/usart.c12
3 files changed, 66 insertions, 66 deletions
diff --git a/examples/usart/usart.c b/examples/usart/usart.c
index 7e34e58..922ec89 100644
--- a/examples/usart/usart.c
+++ b/examples/usart/usart.c
@@ -53,10 +53,10 @@ void usart_setup(void)
/* Setup UART parameters. */
usart_set_baudrate(USART3, 38400);
usart_set_databits(USART3, 8);
- usart_set_stopbits(USART3, STOPBITS_1);
- usart_set_mode(USART3, MODE_TX);
- usart_set_parity(USART3, PARITY_NONE);
- usart_set_flow_control(USART3, FLOWCONTROL_NONE);
+ usart_set_stopbits(USART3, USART_STOPBITS_1);
+ usart_set_mode(USART3, USART_MODE_TX);
+ usart_set_parity(USART3, USART_PARITY_NONE);
+ usart_set_flow_control(USART3, USART_FLOWCONTROL_NONE);
/* Finally enable the USART. */
usart_enable(USART3);
diff --git a/include/libopenstm32/usart.h b/include/libopenstm32/usart.h
index 422a893..63caf05 100644
--- a/include/libopenstm32/usart.h
+++ b/include/libopenstm32/usart.h
@@ -90,16 +90,16 @@
/* --- USART_SR values ----------------------------------------------------- */
-#define SR_CTS (1 << 9) /* N/A on UART4/5 */
-#define SR_LBD (1 << 8)
-#define SR_TXE (1 << 7)
-#define SR_TC (1 << 6)
-#define SR_RXNE (1 << 5)
-#define SR_IDLE (1 << 4)
-#define SR_ORE (1 << 3)
-#define SR_NE (1 << 2)
-#define SR_FE (1 << 1)
-#define SR_PE (1 << 0)
+#define USART_SR_CTS (1 << 9) /* N/A on UART4/5 */
+#define USART_SR_LBD (1 << 8)
+#define USART_SR_TXE (1 << 7)
+#define USART_SR_TC (1 << 6)
+#define USART_SR_RXNE (1 << 5)
+#define USART_SR_IDLE (1 << 4)
+#define USART_SR_ORE (1 << 3)
+#define USART_SR_NE (1 << 2)
+#define USART_SR_FE (1 << 1)
+#define USART_SR_PE (1 << 0)
/* --- USART_DR values ----------------------------------------------------- */
@@ -112,68 +112,68 @@
/* --- USART_CR1 values ---------------------------------------------------- */
-#define CR1_UE (1 << 13)
-#define CR1_M (1 << 12)
-#define CR1_WAKE (1 << 11)
-#define CR1_PCE (1 << 10)
-#define CR1_PS (1 << 9)
-#define CR1_PEIE (1 << 8)
-#define CR1_TXEIE (1 << 7)
-#define CR1_TCIE (1 << 6)
-#define CR1_RXNEIE (1 << 5)
-#define CR1_IDLEIE (1 << 4)
-#define CR1_TE (1 << 3)
-#define CR1_RE (1 << 2)
-#define CR1_RWU (1 << 1)
-#define CR1_SBK (1 << 0)
+#define USART_CR1_UE (1 << 13)
+#define USART_CR1_M (1 << 12)
+#define USART_CR1_WAKE (1 << 11)
+#define USART_CR1_PCE (1 << 10)
+#define USART_CR1_PS (1 << 9)
+#define USART_CR1_PEIE (1 << 8)
+#define USART_CR1_TXEIE (1 << 7)
+#define USART_CR1_TCIE (1 << 6)
+#define USART_CR1_RXNEIE (1 << 5)
+#define USART_CR1_IDLEIE (1 << 4)
+#define USART_CR1_TE (1 << 3)
+#define USART_CR1_RE (1 << 2)
+#define USART_CR1_RWU (1 << 1)
+#define USART_CR1_SBK (1 << 0)
/* CR1_PCE / CR1_PS combined values */
-#define PARITY_NONE 0x00
-#define PARITY_ODD 0x02
-#define PARITY_EVEN 0x03
+#define USART_PARITY_NONE 0x00
+#define USART_PARITY_ODD 0x02
+#define USART_PARITY_EVEN 0x03
/* CR1_TE/CR1_RE combined values */
-#define MODE_RX 0x01
-#define MODE_TX 0x02
-#define MODE_TX_RX 0x03
+#define USART_MODE_RX 0x01
+#define USART_MODE_TX 0x02
+#define USART_MODE_TX_RX 0x03
/* --- USART_CR2 values ---------------------------------------------------- */
-#define CR2_LINEN (1 << 14) /* LIN mode enable */
+#define USART_CR2_LINEN (1 << 14) /* LIN mode enable */
/* USART_CR2[13:12]: STOP */
-#define CR2_CLKEN (1 << 11) /* Clock enable */
-#define CR2_CPOL (1 << 10) /* Clock polarity */
-#define CR2_CPHA (1 << 9) /* Clock phase */
-#define CR2_LBCL (1 << 8) /* Last bit clock pulse */
-#define CR2_LBDIE (1 << 6) /* LIN break det. int. en. */
-#define CR2_LBDL (1 << 5) /* LIN break det. length */
+#define USART_CR2_CLKEN (1 << 11) /* Clock enable */
+#define USART_CR2_CPOL (1 << 10) /* Clock polarity */
+#define USART_CR2_CPHA (1 << 9) /* Clock phase */
+#define USART_CR2_LBCL (1 << 8) /* Last bit clock pulse */
+#define USART_CR2_LBDIE (1 << 6) /* LIN break det. int. en. */
+#define USART_CR2_LBDL (1 << 5) /* LIN break det. length */
/* USART_CR2[3:0]: ADD */
/* STOP values */
-#define STOPBITS_1 0x00 /* 1 stop bit */
-#define STOPBITS_0_5 0x01 /* 0.5 stop bits */
-#define STOPBITS_2 0x02 /* 2 stop bits */
-#define STOPBITS_1_5 0x03 /* 1.5 stop bits */
+#define USART_STOPBITS_1 0x00 /* 1 stop bit */
+#define USART_STOPBITS_0_5 0x01 /* 0.5 stop bits */
+#define USART_STOPBITS_2 0x02 /* 2 stop bits */
+#define USART_STOPBITS_1_5 0x03 /* 1.5 stop bits */
/* --- USART_CR3 values ---------------------------------------------------- */
-#define CR3_CTSIE (1 << 10) /* CTS interrupt enable */
-#define CR3_CTSE (1 << 9) /* CTS enable */
-#define CR3_RTSE (1 << 8) /* RTS enable */
-#define CR3_DMAT (1 << 7) /* DMA enable transmitter */
-#define CR3_DMAR (1 << 6) /* DMA enable receiver */
-#define CR3_SCEN (1 << 5) /* Smartcard mode enable */
-#define CR3_NACK (1 << 4) /* Smartcard NACK enable */
-#define CR3_HDSEL (1 << 3) /* Half-duplex selection */
-#define CR3_IRLP (1 << 2) /* IrDA low-power */
-#define CR3_IREN (1 << 1) /* IrDA mode enable */
-#define CR3_EIE (1 << 0) /* Error interrupt enable */
+#define USART_CR3_CTSIE (1 << 10) /* CTS interrupt enable */
+#define USART_CR3_CTSE (1 << 9) /* CTS enable */
+#define USART_CR3_RTSE (1 << 8) /* RTS enable */
+#define USART_CR3_DMAT (1 << 7) /* DMA enable transmitter */
+#define USART_CR3_DMAR (1 << 6) /* DMA enable receiver */
+#define USART_CR3_SCEN (1 << 5) /* Smartcard mode enable */
+#define USART_CR3_NACK (1 << 4) /* Smartcard NACK enable */
+#define USART_CR3_HDSEL (1 << 3) /* Half-duplex selection */
+#define USART_CR3_IRLP (1 << 2) /* IrDA low-power */
+#define USART_CR3_IREN (1 << 1) /* IrDA mode enable */
+#define USART_CR3_EIE (1 << 0) /* Error interrupt enable */
/* CR3_CTSE/CR3_RTSE combined values */
-#define FLOWCONTROL_NONE 0x00
-#define FLOWCONTROL_RTS 0x01
-#define FLOWCONTROL_CTS 0x02
-#define FLOWCONTROL_RTS_CTS 0x03
+#define USART_FLOWCONTROL_NONE 0x00
+#define USART_FLOWCONTROL_RTS 0x01
+#define USART_FLOWCONTROL_CTS 0x02
+#define USART_FLOWCONTROL_RTS_CTS 0x03
/* --- USART_GTPR values --------------------------------------------------- */
diff --git a/lib/usart.c b/lib/usart.c
index fdcc932..abed18b 100644
--- a/lib/usart.c
+++ b/lib/usart.c
@@ -30,9 +30,9 @@ void usart_set_baudrate(u32 usart, u32 baud)
void usart_set_databits(u32 usart, u32 bits)
{
if (bits == 8)
- USART_CR1(usart) &= ~CR1_M; /* 8 data bits */
+ USART_CR1(usart) &= ~USART_CR1_M; /* 8 data bits */
else
- USART_CR1(usart) |= CR1_M; /* 9 data bits */
+ USART_CR1(usart) |= USART_CR1_M; /* 9 data bits */
}
void usart_set_stopbits(u32 usart, u32 stopbits)
@@ -73,12 +73,12 @@ void usart_set_flow_control(u32 usart, u32 flowcontrol)
void usart_enable(u32 usart)
{
- USART_CR1(usart) |= CR1_UE;
+ USART_CR1(usart) |= USART_CR1_UE;
}
void usart_disable(u32 usart)
{
- USART_CR1(usart) &= ~CR1_UE;
+ USART_CR1(usart) &= ~USART_CR1_UE;
}
void usart_send(u32 usart, u16 data)
@@ -87,13 +87,13 @@ void usart_send(u32 usart, u16 data)
USART_DR(usart) = (data & 0x1ff);
/* Wait until the data has been transferred into the shift register. */
- while ((USART_SR(usart) & SR_TXE) == 0);
+ while ((USART_SR(usart) & USART_SR_TXE) == 0);
}
u16 usart_recv(u32 usart)
{
/* Wait until the data is ready to be received. */
- while ((USART_SR(usart) & SR_RXNE) == 0);
+ while ((USART_SR(usart) & USART_SR_RXNE) == 0);
/* Receive data. */
return USART_DR(usart) & 0x1ff;