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authorMarti Bolivar <mbolivar@leaflabs.com>2012-08-04 01:47:22 -0400
committerMarti Bolivar <mbolivar@leaflabs.com>2012-08-04 01:47:22 -0400
commitc7eeac87ba20fbb7ffd96706c8ff521fe54321c9 (patch)
tree4817b6bf2ee67382a90aed79071bef37ba46111d /libmaple/usb/stm32f1
parent4e20db54c8134c5f967f5ca4d9efe0577b920041 (diff)
downloadlibrambutan-c7eeac87ba20fbb7ffd96706c8ff521fe54321c9.tar.gz
librambutan-c7eeac87ba20fbb7ffd96706c8ff521fe54321c9.zip
usb_cdcacm: Expose line coding state.
This was already supported, so just move the line coding structure to the header and add some functions for accessing the current values. Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
Diffstat (limited to 'libmaple/usb/stm32f1')
-rw-r--r--libmaple/usb/stm32f1/usb_cdcacm.c50
1 files changed, 28 insertions, 22 deletions
diff --git a/libmaple/usb/stm32f1/usb_cdcacm.c b/libmaple/usb/stm32f1/usb_cdcacm.c
index 2a942e5..f425cb8 100644
--- a/libmaple/usb/stm32f1/usb_cdcacm.c
+++ b/libmaple/usb/stm32f1/usb_cdcacm.c
@@ -308,29 +308,11 @@ static volatile uint32 n_unread_bytes = 0;
/* Other state (line coding, DTR/RTS) */
-typedef struct usb_line_coding {
- uint32 dwDTERate; /* Baud rate */
-
-#define STOP_BITS_1 0
-#define STOP_BITS_1_5 1
-#define STOP_BITS_2 2
- uint8 bCharFormat; /* Stop bits */
-
-#define PARITY_NONE 0
-#define PARITY_ODD 1
-#define PARITY_EVEN 2
-#define PARITY_MARK 3
-#define PARITY_SPACE 4
- uint8 bParityType; /* Parity type */
-
- uint8 bDataBits; /* Data bits: 5, 6, 7, 8, or 16 */
-} usb_line_coding;
-
-static volatile usb_line_coding line_coding = {
+static volatile usb_cdcacm_line_coding line_coding = {
/* This default is 115200 baud, 8N1. */
.dwDTERate = 115200,
- .bCharFormat = STOP_BITS_1,
- .bParityType = PARITY_NONE,
+ .bCharFormat = USB_CDCACM_STOP_BITS_1,
+ .bParityType = USB_CDCACM_PARITY_NONE,
.bDataBits = 8,
};
@@ -526,6 +508,30 @@ uint8 usb_cdcacm_get_rts() {
return ((line_dtr_rts & USB_CDCACM_CONTROL_LINE_RTS) != 0);
}
+void usb_cdcacm_get_line_coding(usb_cdcacm_line_coding *ret) {
+ ret->dwDTERate = line_coding.dwDTERate;
+ ret->bCharFormat = line_coding.bCharFormat;
+ ret->bParityType = line_coding.bParityType;
+ ret->bDataBits = line_coding.bDataBits;
+}
+
+int usb_cdcacm_get_baud(void) {
+ return line_coding.dwDTERate;
+}
+
+int usb_cdcacm_get_stop_bits(void) {
+ return line_coding.bCharFormat;
+}
+
+int usb_cdcacm_get_parity(void) {
+ return line_coding.bParityType;
+}
+
+int usb_cdcacm_get_n_data_bits(void) {
+ return line_coding.bDataBits;
+}
+
+
/*
* Callbacks
*/
@@ -555,7 +561,7 @@ static void vcomDataRxCb(void) {
static uint8* vcomGetSetLineCoding(uint16 length) {
if (length == 0) {
- pInformation->Ctrl_Info.Usb_wLength = sizeof(struct usb_line_coding);
+ pInformation->Ctrl_Info.Usb_wLength = sizeof(struct usb_cdcacm_line_coding);
}
return (uint8*)&line_coding;
}