# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1572250773 0
# Node ID 27b5526ba1a82d2a853c32ba18c5a6b5f230e4d1
# Parent  4f346c10f0562ac0e1ebf8081bcd3503062ed000
dspdump target program written, compiles

diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/Makefile	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,29 @@
+CC=	arm-elf-gcc
+CFLAGS=	-Os -fno-builtin
+CPPFLAGS=-I../include
+LD=	arm-elf-ld
+OBJCOPY=arm-elf-objcopy
+
+PROG=	dspdump
+OBJS=	crt0.o cmdtab.o dspops.o dumpagent.o main.o mandump.o
+LIBS=	../libcommon/libcommon.a ../libprintf/libprintf.a ../libbase/libbase.a \
+	../libc/libc.a
+LIBGCC=	`${CC} -print-file-name=libgcc.a`
+LDS=	../env/iram.lds
+
+all:	${PROG}.srec
+
+crt0.S:
+	ln -s ../env/crt0.S .
+
+${PROG}.elf:	${OBJS} ${LIBS} ${LDS}
+	${LD} -N --defsym Base_addr=0x800750 --defsym stack_bottom=0x83FFFC \
+		-T ${LDS} -o $@ ${OBJS} ${LIBS} ${LIBGCC}
+
+${PROG}.srec:	${PROG}.elf
+	${OBJCOPY} -O srec --srec-forceS3 --srec-len=30 $< $@
+
+clean:
+	rm -f *.o *errs *core *.elf *.bin *.srec crt0.S
+
+FRC:
diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/cmdtab.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/cmdtab.c	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,33 @@
+#include "cmdtab.h"
+
+extern void cmd_abbr();
+extern void cmd_abbw();
+extern void cmd_dump();
+extern void cmd_jump();
+extern void cmd_r8();
+extern void cmd_r16();
+extern void cmd_r32();
+extern void cmd_w8();
+extern void cmd_w16();
+extern void cmd_w32();
+
+extern void abb_init();
+extern void abb_power_off();
+extern void abb_unlock_page2();
+
+const struct cmdtab cmdtab[] = {
+	{"abbinit", abb_init},
+	{"abbpage2", abb_unlock_page2},
+	{"abbr", cmd_abbr},
+	{"abbw", cmd_abbw},
+	{"dump", cmd_dump},
+	{"jump", cmd_jump},
+	{"poweroff", abb_power_off},
+	{"r8", cmd_r8},
+	{"r16", cmd_r16},
+	{"r32", cmd_r32},
+	{"w8", cmd_w8},
+	{"w16", cmd_w16},
+	{"w32", cmd_w32},
+	{0, 0}
+};
diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/dspops.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/dspops.c	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,75 @@
+#include "types.h"
+#include "leadapi.h"
+#include "dumpagent.h"
+
+wait_for_dsp_ready()
+{
+	unsigned cnt;
+
+	for (cnt = 0; cnt < 10000; cnt++)
+		if (DOWNLOAD_STATUS == LEAD_READY)
+			return(0);
+	return(-1);
+}
+
+boot_dsp_dump_agent()
+{
+	const u16 *src;
+	volatile u16 *api;
+	unsigned n;
+
+	/* put it into reset first */
+	CLKM_CNTL_RST |= CLKM_LEAD_RST;
+	/* generous 1 ms for the reset pulse */
+	wait_ARM_cycles(13000);
+	/* lift it out of reset */
+	CLKM_CNTL_RST &= ~CLKM_LEAD_RST;
+	/* another generous 1 ms */
+	wait_ARM_cycles(13000);
+	/* bootloader should be ready for us now */
+	if (wait_for_dsp_ready() < 0) {
+		printf("ERROR: DSP bootloader not ready out of reset\n");
+		return(-1);
+	}
+	/* upload the agent code */
+	src = dsp_agent_code;
+	api = (volatile u16 *) APIF_ADDR;
+	for (n = 0; n < DSP_DUMPCODE_LEN; n++)
+		*api++ = *src++;
+	DOWNLOAD_EXT_PAGE = 0;
+	DOWNLOAD_SIZE = DSP_DUMPCODE_LEN;
+	DOWNLOAD_ADDR = DSP_DUMPCODE_START;
+	DOWNLOAD_STATUS = BLOCK_READY;
+	if (wait_for_dsp_ready() < 0) {
+		printf("ERROR: DSP bl not ready after block write\n");
+		return(-1);
+	}
+	/* start it! */
+	DOWNLOAD_EXT_PAGE = 0;
+	DOWNLOAD_SIZE = 0;
+	DOWNLOAD_ADDR = DSP_DUMPCODE_START;
+	DOWNLOAD_STATUS = BLOCK_READY;
+	if (wait_for_dsp_ready() < 0) {
+		printf("ERROR: DSP not ready after commanded jump to agent\n");
+		return(-1);
+	}
+}
+
+dsp_read_op(mode, addr, blklen)
+	u16 mode, blklen;
+	u32 addr;
+{
+	int rc;
+
+	APIRAM_FIRST_WORD = mode;
+	DOWNLOAD_STATUS = PAGE_SELECTION;
+	rc = wait_for_dsp_ready();
+	if (rc < 0)
+		return(rc);
+	DOWNLOAD_EXT_PAGE = addr >> 16;
+	DOWNLOAD_SIZE = blklen;
+	DOWNLOAD_ADDR = addr;
+	DOWNLOAD_STATUS = BLOCK_READY;
+	rc = wait_for_dsp_ready();
+	return(rc);
+}
diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/dumpagent.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/dumpagent.c	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,37 @@
+/*
+ * The following dump agent code has been taken from OsmocomBB.  This code
+ * is run on the Calypso DSP by way of the DSP's bootloader, i.e., it is
+ * booted in the place of the ROM or production patch code, and it provides
+ * an API protocol to the ARM7 host by way of which we read out the ROM code.
+ *
+ * For the corresponding source for this DSP agent code, please refer to the
+ * OsmocomBB code repository - we have not modified it in FreeCalypso.
+ */
+
+#include "types.h"
+
+u16 dsp_agent_code[0x5B] = {
+	0x69f8, 0x0029, 0x0002, 0xea1f,
+	0x7718, 0x1100, 0x7714, 0x0000,
+	0x7712, 0x0800, 0x767f, 0x0001,
+	0x607f, 0xffff, 0xf820, 0x1014,
+	0xf273, 0x1008, 0x7682, 0x0100,
+	0x607f, 0x0004, 0xf820, 0x101c,
+	0xf273, 0x1008, 0x7214, 0x0800,
+	0x607f, 0x0002, 0xf820, 0x100c,
+	0x127e, 0x8813, 0x3c7c, 0x137d,
+	0x8911, 0xf84c, 0x1028, 0xf4e2,
+	0x7715, 0x0014, 0x963d, 0xfa30,
+	0x104b, 0x6d89, 0x963f, 0xfa30,
+	0x103f, 0x963e, 0xf495, 0xf830,
+	0x103a, 0x47f8, 0x0011, 0x7f92,
+	0xf073, 0x1008, 0x47f8, 0x0011,
+	0x7e92, 0xf073, 0x1008, 0xf830,
+	0x1046, 0x47f8, 0x0011, 0xe589,
+	0xf073, 0x1008, 0x47f8, 0x0011,
+	0xe598, 0xf073, 0x1008, 0x4911,
+	0x891a, 0xf830, 0x1055, 0xf072,
+	0x1052, 0xf074, 0x7213, 0xf073,
+	0x1008, 0xf072, 0x1058, 0xf074,
+	0xe4b8, 0xf073, 0x1008
+};
diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/dumpagent.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/dumpagent.h	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,6 @@
+/* definitions for the DSP dump agent code */
+
+#define	DSP_DUMPCODE_START	0x1000
+#define	DSP_DUMPCODE_LEN	0x5B
+
+extern u16 dsp_agent_code[];
diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/leadapi.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/leadapi.h	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,42 @@
+/*
+ * Definitions for the DSP boot and patch download mechanism,
+ * taken from leadapi.h in TCS211.  This version has been
+ * further modified for the DSP dump application.
+ */
+
+#define APIF_ADDR     0xFFD00000L
+
+#define APIRAM_FIRST_WORD   *((volatile u16 *) APIF_ADDR)
+
+#define DOWNLOAD_EXT_PAGE   *((volatile u16 *) (APIF_ADDR + 0x0FF8))
+#define DOWNLOAD_SIZE       *((volatile u16 *) (APIF_ADDR + 0x0FFA))
+#define DOWNLOAD_ADDR       *((volatile u16 *) (APIF_ADDR + 0x0FFC))
+#define DOWNLOAD_STATUS     *((volatile u16 *) (APIF_ADDR + 0x0FFE))
+
+/* Maximum size of a block which can be copied into the API RAM */
+
+#define MAX_BLOCK_SIZE 0x7F0       
+
+/* Possible values for the download status */
+
+#define LEAD_READY      1
+#define BLOCK_READY     2
+#define PROGRAM_DONE    3
+#define PAGE_SELECTION  4
+
+/* DSP reset control register definitions */
+
+#define MEM_CLKM_ADDR   0xfffffd00              /* CLKM registers addr. */
+#define CLKM_CNTL_RST   *((volatile u16 *) (MEM_CLKM_ADDR + 4))
+
+#define CLKM_LEAD_RST 	0x0002
+#define CLKM_EXT_RST 	0x0004
+
+/* extensions provided by OsmocomBB's DSP dump agent */
+
+#define BL_MODE_PROG_WRITE	0
+#define BL_MODE_DATA_WRITE	1
+#define BL_MODE_PROG_READ	2
+#define BL_MODE_DATA_READ	3
+#define BL_MODE_PROM_READ	4
+#define BL_MODE_DROM_READ	5
diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/main.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/main.c	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,13 @@
+#include "types.h"
+
+main()
+{
+	uart_select_init();
+	printf("Calypso DSP dump program running\n");
+	print_boot_rom_info();
+	for (;;) {
+		putchar('=');
+		if (command_entry())
+			command_dispatch();
+	}
+}
diff -r 4f346c10f056 -r 27b5526ba1a8 target-utils/dspdump/mandump.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/dspdump/mandump.c	Mon Oct 28 08:19:33 2019 +0000
@@ -0,0 +1,42 @@
+/* manual dump command */
+
+#include <sys/types.h>
+#include "types.h"
+#include "leadapi.h"
+
+void
+cmd_dump(argbulk)
+	char *argbulk;
+{
+	char *argv[4];
+	u_long mode, addr, len;
+	int rc;
+	volatile u16 *api;
+	unsigned n;
+
+	if (parse_args(argbulk, 3, 3, argv, 0) < 0)
+		return;
+	if (parse_hexarg(argv[0], 4, &mode) < 0) {
+		printf("ERROR: mode must be a valid 16-bit hex value\n");
+		return;
+	}
+	if (parse_hexarg(argv[1], 8, &addr) < 0) {
+		printf("ERROR: addr must be a valid 32-bit hex value\n");
+		return;
+	}
+	if (parse_hexarg(argv[2], 4, &len) < 0) {
+		printf("ERROR: len must be a valid 16-bit hex value\n");
+		return;
+	}
+	rc = boot_dsp_dump_agent();
+	if (rc < 0)
+		return;		/* error msg already printed */
+	rc = dsp_read_op((u16)mode, (u32)addr, (u16)len);
+	if (rc < 0) {
+		printf("ERROR: DSP timeout on read operation\n");
+		return;
+	}
+	api = (volatile u16 *) APIF_ADDR;
+	for (n = 0; n < len; n++)
+		printf("%04X\n", *api++);
+}