Add preliminary 7I96S support

Author: pcw-mesa

docs/man/man9/hm2_eth.9

@@ -46,7 +46,7 @@ hm2_eth is a device driver that interfaces Mesa's ethernet
 based Anything I/O boards (with the HostMot2 firmware) to the LinuxCNC
 HAL.
 
-The supported boards are: 7i76E, 7I80DB, 7I80HD, 7i92, 7i93, 7i96.
+The supported boards are: 7I76E, 7I80DB, 7I80HD, 7I92, 7I93, 7I94, 7I95, 7I96, 7I96S, 7I97, 7I98.
 
 The board must have its hardware loaded on the board by the mesaflash(1) program.
 

src/hal/drivers/mesa-hostmot2/hm2_eth.c

@@ -1238,6 +1238,29 @@ static int hm2_eth_probe(hm2_eth_t *board) {
         board->llio.fpga_part_number = "6slx9tqg144";
         board->llio.num_leds = 4;
 
+    } else if (strncmp(board_name, "7I96S", 8) == 0) {
+        strncpy(llio_name, board_name, 8);
+        llio_name[1] = tolower(llio_name[1]);
+        llio_name[4] = tolower(llio_name[4]);
+       board->llio.num_ioport_connectors = 3;
+        board->llio.pins_per_connector = 17;
+        board->llio.io_connector_pin_names = hm2_7i96_pin_names;
+
+        // DB25, 17 pins used, IO 34 to IO 50
+        board->llio.ioport_connector_name[0] = "P1";
+
+        // terminal block, 8 pins used, Step & Dir 0-3
+        board->llio.ioport_connector_name[1] = "TB1";
+
+        // terminal block, 7 pins used, Step & Dir 4, Enc A, B, Z, serial Rx/Tx, Spindle Analog
+        board->llio.ioport_connector_name[2] = "TB2";
+
+        // terminal block, 11 inputs, 6 SSR outputs
+        board->llio.ioport_connector_name[3] = "TB3";
+
+        board->llio.fpga_part_number = "t20f256";
+        board->llio.num_leds = 4;
+
     } else if (strncmp(board_name, "7I97", 8) == 0) {
         strncpy(llio_name, board_name, 8);
         llio_name[1] = tolower(llio_name[1]);