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authorNicolas Schodet2013-04-03 23:17:59 +0200
committerNicolas Schodet2013-04-03 23:17:59 +0200
commit7b230c04b3d4be2ac4d78414efe201dc11415c7c (patch)
tree6f9120ac9bdcafb587d036ef5991c560e0fc2a90 /src/platforms/dev2/platform.c
parent46898a71cea16b5e8159816f6c0a57e989900a3b (diff)
Add dev2 support.
This is used for APBTeam dev2 board. Black Magic runs on computer system and communicates with dev2 over usb, giving simple orders.
Diffstat (limited to 'src/platforms/dev2/platform.c')
-rw-r--r--src/platforms/dev2/platform.c171
1 files changed, 171 insertions, 0 deletions
diff --git a/src/platforms/dev2/platform.c b/src/platforms/dev2/platform.c
new file mode 100644
index 0000000..3d5929b
--- /dev/null
+++ b/src/platforms/dev2/platform.c
@@ -0,0 +1,171 @@
+/*
+ * This file is part of the Black Magic Debug project.
+ *
+ * Copyright (C) 2011 Black Sphere Technologies Ltd.
+ * Written by Gareth McMullin <gareth@blacksphere.co.nz>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "platform.h"
+#include "gdb_if.h"
+#include "jtag_scan.h"
+
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+#include <termios.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+static int serial_fd = -1;
+static int debug;
+
+#define BUF_SIZE 4096
+static uint8_t outbuf[BUF_SIZE];
+static uint16_t bufptr = 0;
+
+int serial_open(const char *name)
+{
+ int fd;
+ /* Open. */
+ fd = open(name, O_RDWR | O_NOCTTY);
+ if (fd == -1)
+ return -1;
+ /* Setup raw. */
+ struct termios tc;
+ if(tcgetattr(fd, &tc) == -1) {
+ close(fd);
+ return -1;
+ }
+ tc.c_iflag &= ~(IGNPAR | PARMRK | ISTRIP | IGNBRK | BRKINT | IGNCR |
+ ICRNL | INLCR | IXON | IXOFF | IXANY | IMAXBEL);
+ tc.c_oflag &= ~(OPOST);
+ tc.c_cflag &= ~(HUPCL | CSTOPB | PARENB | PARODD | CSIZE);
+ tc.c_cflag |= CS8 | CLOCAL | CREAD;
+ tc.c_lflag &= ~(ICANON | ECHO | ISIG | IEXTEN | NOFLSH | TOSTOP);
+ tc.c_cc[VTIME] = 0;
+ tc.c_cc[VMIN] = 1;
+ tcflush(fd, TCIFLUSH);
+ if(tcsetattr(fd, TCSANOW, &tc) == -1) {
+ close(fd);
+ return -1;
+ }
+ return fd;
+}
+
+int platform_init(int argc, char **argv)
+{
+ int c;
+ char *serial = NULL;
+
+ while((c = getopt(argc, argv, "ds:")) != -1) {
+ switch(c) {
+ case 'd':
+ debug = 1;
+ break;
+ case 's':
+ serial = optarg;
+ break;
+ }
+ }
+ if(optind != argc) {
+ fprintf(stderr, "too many arguments\n");
+ abort();
+ }
+
+ serial_fd = serial_open(serial);
+ if(serial_fd == -1) {
+ fprintf(stderr, "unable to open serial device: %s\n",
+ strerror(errno));
+ abort();
+ }
+
+ uint8_t init_str[] = {
+ DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC,
+ DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC,
+ DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC,
+ DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC, DEV2_OP_RESET_SYNC,
+ DEV2_OP_SETUP, 8, 0, 0, 0, 0,
+ DEV2_OP_DIR, TMS_PIN | TCK_PIN | TDI_PIN
+ };
+ platform_buffer_write (init_str, sizeof (init_str));
+
+ assert(gdb_if_init() == 0);
+
+ jtag_scan(NULL);
+
+ return 0;
+}
+
+void platform_buffer_flush(void)
+{
+ if(bufptr) {
+ assert(write(serial_fd, outbuf, bufptr) == bufptr);
+ bufptr = 0;
+ }
+}
+
+int platform_buffer_write(const uint8_t *data, int size)
+{
+ if((bufptr + size) / BUF_SIZE > 0) platform_buffer_flush();
+ memcpy(outbuf + bufptr, data, size);
+ bufptr += size;
+ return size;
+}
+
+int platform_buffer_read(uint8_t *data, int size)
+{
+ int index = 0;
+ platform_buffer_flush();
+ while((index += read(serial_fd, data + index, size - index)) != size);
+ return size;
+}
+
+#ifdef WIN32
+#warning "This vasprintf() is dubious!"
+int vasprintf(char **strp, const char *fmt, va_list ap)
+{
+ int size = 128, ret = 0;
+
+ *strp = malloc(size);
+ while(*strp && ((ret = vsnprintf(*strp, size, fmt, ap)) == size))
+ *strp = realloc(*strp, size <<= 1);
+
+ return ret;
+}
+#endif
+
+const char *platform_target_voltage(void)
+{
+ return "not supported";
+}
+
+void platform_delay(uint32_t delay)
+{
+ usleep(delay * 100000);
+}
+
+void platform_debug(const char *fmt, ...)
+{
+ if(debug) {
+ va_list ap;
+ va_start(ap, fmt);
+ vprintf(fmt, ap);
+ va_end(ap);
+ }
+}