CMR handle baud options

driver-icarus.c

@@ -244,9 +244,10 @@ static void _transfer(struct cgpu_info *icarus, uint8_t request_type, uint8_t bR
 #define transfer(icarus, request_type, bRequest, wValue, wIndex, cmd) \
 		_transfer(icarus, request_type, bRequest, wValue, wIndex, NULL, 0, cmd)
 
-// TODO: handle baud
-static void icarus_initialise(struct cgpu_info *icarus, __maybe_unused int baud)
+static void icarus_initialise(struct cgpu_info *icarus, int baud)
 {
+	uint16_t wValue, wIndex;
+
 	if (icarus->usbinfo.nodev)
 		return;
 
@@ -276,15 +277,32 @@ static void icarus_initialise(struct cgpu_info *icarus, __maybe_unused int baud)
 			if (icarus->usbinfo.nodev)
 				return;
 
-			// TODO: Get the baud settings for the 2 CMRs
-			if (icarus->usbdev->ident != IDENT_CMR1 &&
-			    icarus->usbdev->ident != IDENT_CMR2) {
-				// Set the baud
-				transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_BAUD, FTDI_VALUE_BAUD_BLT,
-					 (FTDI_INDEX_BAUD_BLT & 0xff00) | icarus->usbdev->found->interface,
-					 C_SETBAUD);
+			// default to BLT/LLT 115200
+			wValue = FTDI_VALUE_BAUD_BLT;
+			wIndex = FTDI_INDEX_BAUD_BLT;
+
+			if (icarus->usbdev->ident == IDENT_CMR1 ||
+			    icarus->usbdev->ident == IDENT_CMR2) {
+				switch (baud) {
+					case 115200:
+						wValue = FTDI_VALUE_BAUD_CMR_115;
+						wIndex = FTDI_INDEX_BAUD_CMR_115;
+						break;
+					case 57600:
+						wValue = FTDI_VALUE_BAUD_CMR_57;
+						wIndex = FTDI_INDEX_BAUD_CMR_57;
+						break;
+					default:
+						quit(1, "icarus_intialise() invalid baud (%d) for Cairnsmore1", baud);
+						break;
+				}
 			}
 
+			// Set the baud
+			transfer(icarus, FTDI_TYPE_OUT, FTDI_REQUEST_BAUD, wValue,
+				 (wIndex & 0xff00) | icarus->usbdev->found->interface,
+				 C_SETBAUD);
+
 			if (icarus->usbinfo.nodev)
 				return;
 

usbutils.c

@@ -256,7 +256,7 @@ static struct usb_find_devices find_dev[] = {
 		.interface = 0,
 		.timeout = ICARUS_TIMEOUT_MS,
 		.epcount = ARRAY_SIZE(cmr1_eps),
-		.eps = cmr_eps },
+		.eps = cmr1_eps },
 	{
 		.drv = DRV_ICARUS,
 		.name = "CMR",
@@ -269,7 +269,7 @@ static struct usb_find_devices find_dev[] = {
 		.interface = 0,
 		.timeout = ICARUS_TIMEOUT_MS,
 		.epcount = ARRAY_SIZE(cmr2_eps),
-		.eps = cmr_eps },
+		.eps = cmr2_eps },
 #endif
 #ifdef USE_ZTEX
 // This is here so cgminer -n shows them

usbutils.h

@@ -40,6 +40,13 @@
 #define FTDI_VALUE_BAUD_BLT 0x001a
 #define FTDI_INDEX_BAUD_BLT 0x0000
 
+// CMR = 115200 & 57600
+#define FTDI_VALUE_BAUD_CMR_115 0xc068
+#define FTDI_INDEX_BAUD_CMR_115 0x0200
+
+#define FTDI_VALUE_BAUD_CMR_57 0x80d0
+#define FTDI_INDEX_BAUD_CMR_57 0x0200
+
 // Data control
 #define FTDI_VALUE_DATA_BFL 0
 #define FTDI_VALUE_DATA_BAS FTDI_VALUE_DATA_BFL