serial_hid: add support for the WCH CH9325 chip (UT-D04 cables, UT32x)

[libsigrok.git] / src / libsigrok-internal.h

diff --git a/src/libsigrok-internal.h b/src/libsigrok-internal.h
index e1623f629b0e2c675cf59386eea95d542e8bf5bb..9c9da8cd61644df7235af51adc10a5f871f17835 100644 (file)
--- a/src/libsigrok-internal.h
+++ b/src/libsigrok-internal.h
@@ -29,6 +29,9 @@
 #include "config.h"
 
 #include <glib.h>
+#ifdef HAVE_LIBHIDAPI
+#include <hidapi.h>
+#endif
 #ifdef HAVE_LIBSERIALPORT
 #include <libserialport.h>
 #endif
@@ -727,6 +730,7 @@ struct sr_usb_dev_inst {
 struct sr_serial_dev_inst;
 #ifdef HAVE_SERIAL_COMM
 struct ser_lib_functions;
+struct ser_hid_chip_functions;
 struct sr_serial_dev_inst {
        /** Port name, e.g. '/dev/tty42'. */
        char *port;
@@ -744,6 +748,19 @@ struct sr_serial_dev_inst {
        /** libserialport port handle */
        struct sp_port *sp_data;
 #endif
+#ifdef HAVE_LIBHIDAPI
+       enum ser_hid_chip_t {
+               SER_HID_CHIP_UNKNOWN,           /**!< place holder */
+               SER_HID_CHIP_WCH_CH9325,        /**!< WCH CH9325 */
+               SER_HID_CHIP_LAST,              /**!< sentinel */
+       } hid_chip;
+       struct ser_hid_chip_functions *hid_chip_funcs;
+       char *usb_path;
+       char *usb_serno;
+       const char *hid_path;
+       hid_device *hid_dev;
+       GSList *hid_source_args;
+#endif
 };
 #endif
 
@@ -1177,6 +1194,33 @@ struct ser_lib_functions {
        size_t (*get_rx_avail)(struct sr_serial_dev_inst *serial);
 };
 extern SR_PRIV struct ser_lib_functions *ser_lib_funcs_libsp;
+SR_PRIV int ser_name_is_hid(struct sr_serial_dev_inst *serial);
+extern SR_PRIV struct ser_lib_functions *ser_lib_funcs_hid;
+
+#ifdef HAVE_LIBHIDAPI
+struct vid_pid_item {
+       uint16_t vid, pid;
+};
+#define VID_PID_TERM   ALL_ZERO
+
+struct ser_hid_chip_functions {
+       const char *chipname;
+       const char *chipdesc;
+       const struct vid_pid_item *vid_pid_items;
+       const int max_bytes_per_request;
+       int (*set_params)(struct sr_serial_dev_inst *serial,
+                       int baudrate, int bits, int parity, int stopbits,
+                       int flowcontrol, int rts, int dtr);
+       int (*read_bytes)(struct sr_serial_dev_inst *serial,
+                       uint8_t *data, int space, unsigned int timeout);
+       int (*write_bytes)(struct sr_serial_dev_inst *serial,
+                       const uint8_t *data, int space);
+       int (*flush)(struct sr_serial_dev_inst *serial);
+       int (*drain)(struct sr_serial_dev_inst *serial);
+};
+extern SR_PRIV struct ser_hid_chip_functions *ser_hid_chip_funcs_ch9325;
+SR_PRIV const char *ser_hid_chip_find_name_vid_pid(uint16_t vid, uint16_t pid);
+#endif
 #endif
 
 /*--- ezusb.c ---------------------------------------------------------------*/