Add pinout for Sparkfun FTDI Basic

For issue #27

Author: lorf

README.md

@@ -259,6 +259,11 @@ variables or using the -TRANS option to most CSR commandline apps.
     `RXD` (`D1`), `MISO` - `RTS#` (`D2`).
   * `hwspi+leds` - this is the same as `hwspi` but adds read and write LEDs on
     `DTR#` (`D4`) and `DSR#` (`D5`) pins respectively.
+  * `sparkfun` - pinout for use with adapters with TX, RX, DTR and CTS
+    signals brougth out, such as
+    [Sparkfun FTDI Basic breakout board](https://cdn.sparkfun.com/datasheets/BreakoutBoards/FTDI%20Basic-v22-3.3V.pdf):
+	`CS` - `CTS#` (`D3`), `CLK` - `TXD` (`D0`), `MOSI` - `RXD` (`D1`), `MISO` -
+    `DTR#` (`D4`).
 
 For other options see [misc/transport-options.md](misc/transport-options.md).
 

VERSION

@@ -1 +1 @@
-0.5.3-a1
+0.5.3-a3

basics.cpp

@@ -402,6 +402,8 @@ static int spifns_sequence_setvar(const char *szName, const char *szValue) {
                         pinout = SPI_PINOUT_HWSPI_LEDS;
                     } else if (!stricmp(szValue, "hwspi")) {
                         pinout = SPI_PINOUT_HWSPI;
+                    } else if (!stricmp(szValue, "sparkfun")) {
+                        pinout = SPI_PINOUT_SPARKFUN;
                     } else {
                         const char szError[]="Invalid pinout specified in FTDI_PINOUT";
                         memcpy(g_szErrorString,szError,sizeof(szError));

spi.h

@@ -66,18 +66,31 @@ struct spi_pins {
 #define SPI_PIN_PRESET_HWSPI \
     { (1 << 3), (1 << 0), (1 << 1), (1 << 2), 0, 0 }
 
+/*
+ * Pinout for Sparkfun FTDI-Basic breakout board.
+ * Ref: https://cdn.sparkfun.com/datasheets/BreakoutBoards/FTDI%20Basic-v22-3.3V.pdf
+ * CS   - CTS# (D3)
+ * CLK  - TXD  (D0)
+ * MOSI - RXD  (D1)
+ * MISO - DTR#  (D4)
+ */
+#define SPI_PIN_PRESET_SPARKFUN \
+	{ (1 << 3), (1 << 0), (1 << 1), (1 << 4), 0, 0 }
+
 #define SPI_PIN_PRESETS { \
         SPI_PIN_PRESET_DEFAULT, \
         SPI_PIN_PRESET_NOLEDS, \
         SPI_PIN_PRESET_HWSPI_LEDS, \
         SPI_PIN_PRESET_HWSPI, \
+        SPI_PIN_PRESET_SPARKFUN, \
     }
 
 enum spi_pinouts {
     SPI_PINOUT_DEFAULT = 0,
     SPI_PINOUT_NOLEDS,
     SPI_PINOUT_HWSPI_LEDS,
     SPI_PINOUT_HWSPI,
+    SPI_PINOUT_SPARKFUN,
 };
 
 #ifdef __cplusplus