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authorGareth McMullin2012-06-10 16:40:07 +1200
committerGareth McMullin2012-06-10 16:40:07 +1200
commit8d190cdbb9c4e4377d0c33424e453c5ac166eed8 (patch)
treea8f51180449560e19de7f823e773810c8fde6c7e /src/linux
parentc82527056147beb170b93ffea2e668eb03022017 (diff)
Renamed platforms to 'native' and 'libftdi' and moved into 'platforms' dir.
Diffstat (limited to 'src/linux')
-rw-r--r--src/linux/Makefile.inc1
-rw-r--r--src/linux/gdb_if.c114
-rw-r--r--src/linux/jtagtap.c221
-rw-r--r--src/linux/platform.c128
-rw-r--r--src/linux/platform.h56
-rw-r--r--src/linux/swdptap.c176
6 files changed, 0 insertions, 696 deletions
diff --git a/src/linux/Makefile.inc b/src/linux/Makefile.inc
deleted file mode 100644
index 095b3a7..0000000
--- a/src/linux/Makefile.inc
+++ /dev/null
@@ -1 +0,0 @@
-LDFLAGS += -lftdi -lusb
diff --git a/src/linux/gdb_if.c b/src/linux/gdb_if.c
deleted file mode 100644
index 4b4f4a5..0000000
--- a/src/linux/gdb_if.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * 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/>.
- */
-
-/* This file implements a transparent channel over which the GDB Remote
- * Serial Debugging protocol is implemented. This implementation for Linux
- * uses a TCP server on port 2000.
- */
-#include <stdio.h>
-
-#ifndef WIN32
-# include <sys/socket.h>
-# include <netinet/in.h>
-# include <sys/select.h>
-#else
-# include <windows.h>
-# include <ws2tcpip.h>
-#endif
-
-#include <assert.h>
-
-#include "general.h"
-#include "gdb_if.h"
-
-static int gdb_if_serv, gdb_if_conn;
-
-int gdb_if_init(void)
-{
-#ifdef WIN32
- WSADATA wsaData;
- WSAStartup(MAKEWORD(2, 2), &wsaData);
-#endif
- struct sockaddr_in addr;
- int opt;
-
- addr.sin_family = AF_INET;
- addr.sin_port = htons(2000);
- addr.sin_addr.s_addr = htonl(INADDR_ANY);
-
- assert((gdb_if_serv = socket(PF_INET, SOCK_STREAM, 0)) != -1);
- opt = 1;
- assert(setsockopt(gdb_if_serv, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) != -1);
-
- assert(bind(gdb_if_serv, (void*)&addr, sizeof(addr)) != -1);
- assert(listen(gdb_if_serv, 1) != -1);
-
- DEBUG("Listening on TCP:2000\n");
-
- return 0;
-}
-
-
-unsigned char gdb_if_getchar(void)
-{
- unsigned char ret;
- int i = 0;
-
- while(i <= 0) {
- if(gdb_if_conn <= 0) {
- gdb_if_conn = accept(gdb_if_serv, NULL, NULL);
- DEBUG("Got connection\n");
- }
- i = recv(gdb_if_conn, &ret, 1, 0);
- if(i <= 0) {
- gdb_if_conn = -1;
- DEBUG("Dropped broken connection\n");
- /* Return '+' in case we were waiting for an ACK */
- return '+';
- }
- }
- return ret;
-}
-
-unsigned char gdb_if_getchar_to(int timeout)
-{
- fd_set fds;
- struct timeval tv;
-
- if(gdb_if_conn == -1) return -1;
-
- tv.tv_sec = timeout / 1000;
- tv.tv_usec = (timeout % 1000) * 1000;
-
- FD_ZERO(&fds);
- FD_SET(gdb_if_conn, &fds);
-
- if(select(gdb_if_conn+1, &fds, NULL, NULL, &tv) > 0)
- return gdb_if_getchar();
-
- return -1;
-}
-
-void gdb_if_putchar(unsigned char c, int flush)
-{
- if(gdb_if_conn > 0)
- send(gdb_if_conn, &c, 1, 0);
-}
-
diff --git a/src/linux/jtagtap.c b/src/linux/jtagtap.c
deleted file mode 100644
index fdfb051..0000000
--- a/src/linux/jtagtap.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * This file is part of the Black Magic Debug project.
- *
- * Copyright (C) 2008 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/>.
- */
-
-/* Low level JTAG implementation using FT2232 with libftdi.
- *
- * Issues:
- * This code is old, rotten and unsupported.
- * Magic numbers everywhere.
- * Should share interface with swdptap.c or at least clean up...
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-
-#include <assert.h>
-
-#include <ftdi.h>
-
-#include "general.h"
-
-#define PROVIDE_GENERIC_TAP_SEQ
-//#define PROVIDE_GENERIC_TAP_TMS_SEQ
-//#define PROVIDE_GENERIC_TAP_TDI_TDO_SEQ
-//#define PROVIDE_GENERIC_TAP_TDI_SEQ
-#include "jtagtap.h"
-
-#define ALL_ZERO 0xA0
-#define TCK 0x01
-#define TDI 0x02
-#define TDO 0x04
-#define TMS 0x08
-#define nSRST 0x20
-
-int jtagtap_init(void)
-{
- int err;
-
- assert(ftdic != NULL);
-
- if((err = ftdi_set_bitmode(ftdic, 0xAB, BITMODE_MPSSE)) != 0) {
- fprintf(stderr, "ftdi_set_bitmode: %d: %s\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
-
- assert(ftdi_write_data(ftdic, "\x86\x00\x00\x80\xA8\xAB", 6) == 6);
-
- /* Go to JTAG mode for SWJ-DP */
- for(int i = 0; i <= 50; i++) jtagtap_next(1, 0); /* Reset SW-DP */
- jtagtap_tms_seq(0xE73C, 16); /* SWD to JTAG sequence */
- jtagtap_soft_reset();
-
- return 0;
-}
-
-void jtagtap_reset(void)
-{
- jtagtap_soft_reset();
-}
-
-void jtagtap_srst(void)
-{
- platform_buffer_flush();
- //ftdi_write_data(ftdic, "\x80\x88\xAB", 3);
- //usleep(1000);
- //ftdi_write_data(ftdic, "\x80\xA8\xAB", 3);
-}
-
-#ifndef PROVIDE_GENERIC_TAP_TMS_SEQ
-void
-jtagtap_tms_seq(uint32_t MS, int ticks)
-{
- uint8_t tmp[3] = "\x4B";
- while(ticks >= 0) {
- //jtagtap_next(MS & 1, 1);
- tmp[1] = ticks<7?ticks-1:6;
- tmp[2] = 0x80 | (MS & 0x7F);
-
-// assert(ftdi_write_data(ftdic, tmp, 3) == 3);
- platform_buffer_write(tmp, 3);
- MS >>= 7; ticks -= 7;
- }
-}
-#endif
-
-#ifndef PROVIDE_GENERIC_TAP_TDI_SEQ
-void
-jtagtap_tdi_seq(const uint8_t final_tms, const uint8_t *DI, int ticks)
-{
- char *tmp;
- int index = 0;
- int rticks;
-
- if(!ticks) return;
-
- if(final_tms) ticks--;
- rticks = ticks & 7;
- ticks >>= 3;
- tmp = alloca(ticks + 9);
-
- if(ticks) {
- tmp[index++] = 0x19;
- tmp[index++] = ticks - 1;
- tmp[index++] = 0;
- while(ticks--) tmp[index++] = *DI++;
- }
-
- if(rticks) {
- tmp[index++] = 0x1B;
- tmp[index++] = rticks - 1;
- tmp[index++] = *DI;
- }
-
- if(final_tms) {
- tmp[index++] = 0x4B;
- tmp[index++] = 0;
- tmp[index++] = (*DI)>>rticks?0x81:0x01;
- }
-// assert(ftdi_write_data(ftdic, tmp, index) == index);
- platform_buffer_write(tmp, index);
-}
-#endif
-
-#ifndef PROVIDE_GENERIC_TAP_TDI_TDO_SEQ
-void
-jtagtap_tdi_tdo_seq(uint8_t *DO, const uint8_t final_tms, const uint8_t *DI, int ticks)
-{
- uint8_t *tmp;
- int index = 0, rsize;
- int rticks;
-
- if(!ticks) return;
-
-// printf("ticks: %d\n", ticks);
- if(final_tms) ticks--;
- rticks = ticks & 7;
- ticks >>= 3;
- tmp = alloca(ticks + 9);
- rsize = ticks;
- if(ticks) {
- tmp[index++] = 0x39;
- tmp[index++] = ticks - 1;
- tmp[index++] = 0;
- while(ticks--) tmp[index++] = *DI++;
- }
-
- if(rticks) {
- rsize++;
- tmp[index++] = 0x3B;
- tmp[index++] = rticks - 1;
- tmp[index++] = *DI;
- }
-
- if(final_tms) {
- rsize++;
- tmp[index++] = 0x6B;
- tmp[index++] = 0;
- tmp[index++] = (*DI)>>rticks?0x81:0x01;
- }
-// assert(ftdi_write_data(ftdic, tmp, index) == index);
- platform_buffer_write(tmp, index);
-// index = 0;
-// while((index += ftdi_read_data(ftdic, tmp + index, rsize-index)) != rsize);
- platform_buffer_read(tmp, rsize);
- /*for(index = 0; index < rsize; index++)
- printf("%02X ", tmp[index]);
- printf("\n");*/
- index = 0;
- if(final_tms) rsize--;
-
- while(rsize--) {
- /*if(rsize) printf("%02X ", tmp[index]);*/
- *DO++ = tmp[index++];
- }
- if(final_tms) {
- rticks++;
- *(--DO) >>= 1;
- *DO |= tmp[index] & 0x80;
- } else DO--;
- if(rticks) {
- *DO >>= (8-rticks);
- }
- /*printf("%02X\n", *DO);*/
-}
-#endif
-
-uint8_t jtagtap_next(uint8_t dTMS, uint8_t dTDO)
-{
- uint8_t ret;
- uint8_t tmp[3] = "\x6B\x00\x00";
- tmp[2] = (dTDO?0x80:0) | (dTMS?0x01:0);
-// assert(ftdi_write_data(ftdic, tmp, 3) == 3);
-// while(ftdi_read_data(ftdic, &ret, 1) != 1);
- platform_buffer_write(tmp, 3);
- platform_buffer_read(&ret, 1);
-
- ret &= 0x80;
-
-// DEBUG("jtagtap_next(TMS = %d, TDO = %d) = %02X\n", dTMS, dTDO, ret);
-
- return ret;
-}
-
diff --git a/src/linux/platform.c b/src/linux/platform.c
deleted file mode 100644
index 9690a92..0000000
--- a/src/linux/platform.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * 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 <stdio.h>
-#include <string.h>
-#include <assert.h>
-
-struct ftdi_context *ftdic;
-
-#define BUF_SIZE 4096
-static uint8_t outbuf[BUF_SIZE];
-static uint16_t bufptr = 0;
-
-int platform_init(void)
-{
- int err;
-
- if(ftdic) {
- ftdi_usb_close(ftdic);
- ftdi_free(ftdic);
- ftdic = NULL;
- }
- if((ftdic = ftdi_new()) == NULL) {
- fprintf(stderr, "ftdi_new: %s\n",
- ftdi_get_error_string(ftdic));
- abort();
- }
- if((err = ftdi_set_interface(ftdic, INTERFACE_A)) != 0) {
- fprintf(stderr, "ftdi_set_interface: %d: %s\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
- if((err = ftdi_usb_open(ftdic, FT2232_VID, FT2232_PID)) != 0) {
- fprintf(stderr, "unable to open ftdi device: %d (%s)\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
-
- if((err = ftdi_set_latency_timer(ftdic, 1)) != 0) {
- fprintf(stderr, "ftdi_set_latency_timer: %d: %s\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
- if((err = ftdi_set_baudrate(ftdic, 1000000)) != 0) {
- fprintf(stderr, "ftdi_set_baudrate: %d: %s\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
- if((err = ftdi_usb_purge_buffers(ftdic)) != 0) {
- fprintf(stderr, "ftdi_set_baudrate: %d: %s\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
- if((err = ftdi_write_data_set_chunksize(ftdic, BUF_SIZE)) != 0) {
- fprintf(stderr, "ftdi_write_data_set_chunksize: %d: %s\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
-
- assert(gdb_if_init() == 0);
-
- jtag_scan();
-
- return 0;
-}
-
-void platform_buffer_flush(void)
-{
- assert(ftdi_write_data(ftdic, outbuf, bufptr) == bufptr);
-// printf("FT2232 platform_buffer flush: %d bytes\n", 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 += ftdi_read_data(ftdic, 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";
-}
-
diff --git a/src/linux/platform.h b/src/linux/platform.h
deleted file mode 100644
index 325f67b..0000000
--- a/src/linux/platform.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * 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/>.
- */
-
-#ifndef __PLATFORM_H
-#define __PLATFORM_H
-
-#include <stdint.h>
-#include <ftdi.h>
-
-#ifndef WIN32
-# include <alloca.h>
-#else
-# define alloca __builtin_alloca
-#endif
-
-#define FT2232_VID 0x0403
-#define FT2232_PID 0x6010
-
-#define SET_RUN_STATE(state)
-#define SET_IDLE_STATE(state)
-#define SET_ERROR_STATE(state)
-
-#define PLATFORM_FATAL_ERROR(error) abort()
-#define PLATFORM_SET_FATAL_ERROR_RECOVERY()
-
-#define morse(x, y) do {} while(0)
-#define morse_msg 0
-
-extern struct ftdi_context *ftdic;
-
-int platform_init(void);
-const char *platform_target_voltage(void);
-
-void platform_buffer_flush(void);
-int platform_buffer_write(const uint8_t *data, int size);
-int platform_buffer_read(uint8_t *data, int size);
-
-#endif
-
diff --git a/src/linux/swdptap.c b/src/linux/swdptap.c
deleted file mode 100644
index be329d8..0000000
--- a/src/linux/swdptap.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * 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/>.
- */
-
-/* Quick hack for bit-banging SW-DP interface over FT2232.
- * Intended as proof of concept, not for production.
- */
-
-#include <stdio.h>
-#include <assert.h>
-#include <ftdi.h>
-
-#include "platform.h"
-#include "swdptap.h"
-
-static void swdptap_turnaround(uint8_t dir);
-static uint8_t swdptap_bit_in(void);
-static void swdptap_bit_out(uint8_t val);
-
-int swdptap_init(void)
-{
- int err;
-
- assert(ftdic != NULL);
-
- if((err = ftdi_set_bitmode(ftdic, 0xAB, BITMODE_BITBANG)) != 0) {
- fprintf(stderr, "ftdi_set_bitmode: %d: %s\n",
- err, ftdi_get_error_string(ftdic));
- abort();
- }
-
- assert(ftdi_write_data(ftdic, "\xAB\xA8", 2) == 2);
-
- /* This must be investigated in more detail.
- * As described in STM32 Reference Manual... */
- swdptap_seq_out(0xFFFF, 16);
- swdptap_reset();
- swdptap_seq_out(0xE79E, 16); /* 0b0111100111100111 */
- swdptap_reset();
- swdptap_seq_out(0, 16);
-
- return 0;
-}
-
-void swdptap_reset(void)
-{
- swdptap_turnaround(0);
- /* 50 clocks with TMS high */
- for(int i = 0; i < 50; i++) swdptap_bit_out(1);
-}
-
-static void swdptap_turnaround(uint8_t dir)
-{
- static uint8_t olddir = 0;
-
- //DEBUG("%s", dir ? "\n-> ":"\n<- ");
- platform_buffer_flush();
-
- if(dir == olddir) return;
- olddir = dir;
-
- if(dir) /* SWDIO goes to input */
- assert(ftdi_set_bitmode(ftdic, 0xA3, BITMODE_BITBANG) == 0);
-
- /* One clock cycle */
- ftdi_write_data(ftdic, "\xAB\xA8", 2);
-
- if(!dir) /* SWDIO goes to output */
- assert(ftdi_set_bitmode(ftdic, 0xAB, BITMODE_BITBANG) == 0);
-}
-
-static uint8_t swdptap_bit_in(void)
-{
- uint8_t ret;
-
- //ftdi_read_data(ftdic, &ret, 1);
- ftdi_read_pins(ftdic, &ret);
- ret &= 0x08;
- ftdi_write_data(ftdic, "\xA1\xA0", 2);
-
- //DEBUG("%d", ret?1:0);
-
- return ret;
-}
-
-static void swdptap_bit_out(uint8_t val)
-{
- uint8_t buf[3] = "\xA0\xA1\xA0";
-
- //DEBUG("%d", val);
-
- if(val) {
- for(int i = 0; i < 3; i++)
- buf[i] |= 0x08;
- }
- //ftdi_write_data(ftdic, buf, 3);
- platform_buffer_write(buf, 3);
-}
-
-uint32_t swdptap_seq_in(int ticks)
-{
- uint32_t index = 1;
- uint32_t ret = 0;
-
- swdptap_turnaround(1);
-
- while (ticks--) {
- if (swdptap_bit_in())
- ret |= index;
- index <<= 1;
- }
-
- return ret;
-}
-
-uint8_t swdptap_seq_in_parity(uint32_t *ret, int ticks)
-{
- uint32_t index = 1;
- uint8_t parity = 0;
- *ret = 0;
-
- swdptap_turnaround(1);
-
- while (ticks--) {
- if (swdptap_bit_in()) {
- *ret |= index;
- parity ^= 1;
- }
- index <<= 1;
- }
- if (swdptap_bit_in())
- parity ^= 1;
-
- return parity;
-}
-
-void swdptap_seq_out(uint32_t MS, int ticks)
-{
- swdptap_turnaround(0);
-
- while (ticks--) {
- swdptap_bit_out(MS & 1);
- MS >>= 1;
- }
-}
-
-void swdptap_seq_out_parity(uint32_t MS, int ticks)
-{
- uint8_t parity = 0;
-
- swdptap_turnaround(0);
-
- while (ticks--) {
- swdptap_bit_out(MS & 1);
- parity ^= MS;
- MS >>= 1;
- }
- swdptap_bit_out(parity & 1);
-}
-