summaryrefslogtreecommitdiffstats
path: root/utils/hwstub/lib
diff options
context:
space:
mode:
authorAmaury Pouly <amaury.pouly@gmail.com>2013-06-12 19:46:04 +0200
committerAmaury Pouly <amaury.pouly@gmail.com>2013-06-12 19:46:04 +0200
commit11da9d23fe323ce452fcd04a10a0ddf78eaa63ea (patch)
tree7ab4d162b2a944214bb01d498d5a0400dec031a0 /utils/hwstub/lib
parent3f4eeb850e91fd026a99f2b17bd7e0837f112bb5 (diff)
downloadrockbox-11da9d23fe323ce452fcd04a10a0ddf78eaa63ea.tar.gz
rockbox-11da9d23fe323ce452fcd04a10a0ddf78eaa63ea.tar.bz2
rockbox-11da9d23fe323ce452fcd04a10a0ddf78eaa63ea.zip
imxtools: move hwemul to its own directory
The hwemul is only partly imx specific: the stub is stmp specific but could be ported to other targets, the computer side and the protocol are mostly stmp independent (or should be). Change-Id: If88febffe591b0de86ea11cb740455ba20ddc401
Diffstat (limited to 'utils/hwstub/lib')
-rw-r--r--utils/hwstub/lib/Makefile27
-rw-r--r--utils/hwstub/lib/hwemul.c175
-rw-r--r--utils/hwstub/lib/hwemul.h63
-rw-r--r--utils/hwstub/lib/hwemul_protocol.h1
4 files changed, 266 insertions, 0 deletions
diff --git a/utils/hwstub/lib/Makefile b/utils/hwstub/lib/Makefile
new file mode 100644
index 0000000000..7280fe8e38
--- /dev/null
+++ b/utils/hwstub/lib/Makefile
@@ -0,0 +1,27 @@
+CC=gcc
+AR=ar
+CFLAGS=-W -Wall -O2 `pkg-config --cflags libusb-1.0` -std=c99 -g -fPIC
+LDFLAGS=`pkg-config --libs libusb-1.0` -fPIC
+LIB=libhwemul.a
+REGTOOLS=../../regtools
+DESC=$(REGTOOLS)/desc
+HWEMULGEN=$(REGTOOLS)/hwemulgen
+HWEMULSOC_PREFIX=hwemul_soc
+SRC=$(wildcard *.c) $(HWEMULSOC_PREFIX).c
+OBJ=$(SRC:.c=.o)
+
+all: $(LIB) $(EXEC)
+
+$(HWEMULSOC_PREFIX).c $(HWEMULSOC_PREFIX).h:
+ $(HWEMULGEN) $(DESC)/*.xml $(HWEMULSOC_PREFIX)
+
+%.o: %.c $(HWEMULSOC_PREFIX).h
+ $(CC) $(CFLAGS) -c -o $@ $<
+
+$(LIB): $(OBJ)
+ $(AR) rcs $@ $^
+
+clean:
+ rm -rf $(OBJ) $(LIB) $(HWEMULSOC_PREFIX).c $(HWEMULSOC_PREFIX).h
+
+
diff --git a/utils/hwstub/lib/hwemul.c b/utils/hwstub/lib/hwemul.c
new file mode 100644
index 0000000000..3e2e6de38a
--- /dev/null
+++ b/utils/hwstub/lib/hwemul.c
@@ -0,0 +1,175 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2012 by Amaury Pouly
+ *
+ * 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "hwemul.h"
+#include "hwemul_soc.h"
+
+#ifndef MIN
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
+
+/* requires then ->handle field only */
+int hwemul_probe(struct hwemul_device_t *dev)
+{
+ libusb_device *mydev = libusb_get_device(dev->handle);
+
+ int config_id;
+ libusb_get_configuration(dev->handle, &config_id);
+ struct libusb_config_descriptor *config;
+ libusb_get_active_config_descriptor(mydev, &config);
+
+ const struct libusb_endpoint_descriptor *endp = NULL;
+ int intf;
+ for(intf = 0; intf < config->bNumInterfaces; intf++)
+ {
+ if(config->interface[intf].num_altsetting != 1)
+ continue;
+ const struct libusb_interface_descriptor *interface =
+ &config->interface[intf].altsetting[0];
+ if(interface->bNumEndpoints != 3 ||
+ interface->bInterfaceClass != HWEMUL_CLASS ||
+ interface->bInterfaceSubClass != HWEMUL_SUBCLASS ||
+ interface->bInterfaceProtocol != HWEMUL_PROTOCOL)
+ continue;
+ dev->intf = intf;
+ dev->bulk_in = dev->bulk_out = dev->int_in = -1;
+ for(int ep = 0; ep < interface->bNumEndpoints; ep++)
+ {
+ endp = &interface->endpoint[ep];
+ if((endp->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK) == LIBUSB_TRANSFER_TYPE_INTERRUPT &&
+ (endp->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_IN)
+ dev->int_in = endp->bEndpointAddress;
+ if((endp->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK) == LIBUSB_TRANSFER_TYPE_BULK &&
+ (endp->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_IN)
+ dev->bulk_in = endp->bEndpointAddress;
+ if((endp->bmAttributes & LIBUSB_TRANSFER_TYPE_MASK) == LIBUSB_TRANSFER_TYPE_BULK &&
+ (endp->bEndpointAddress & LIBUSB_ENDPOINT_DIR_MASK) == LIBUSB_ENDPOINT_OUT)
+ dev->bulk_out = endp->bEndpointAddress;
+ }
+ if(dev->bulk_in == -1 || dev->bulk_out == -1 || dev->int_in == -1)
+ continue;
+ break;
+ }
+ if(intf == config->bNumInterfaces)
+ return 1;
+
+ return libusb_claim_interface(dev->handle, intf);
+}
+
+int hwemul_release(struct hwemul_device_t *dev)
+{
+ return libusb_release_interface(dev->handle, dev->intf);
+}
+
+int hwemul_get_info(struct hwemul_device_t *dev, uint16_t idx, void *info, size_t sz)
+{
+ return libusb_control_transfer(dev->handle,
+ LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN,
+ HWEMUL_GET_INFO, 0, idx, info, sz, 1000);
+}
+
+int hwemul_get_log(struct hwemul_device_t *dev, void *buf, size_t sz)
+{
+ return libusb_control_transfer(dev->handle,
+ LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_DEVICE | LIBUSB_ENDPOINT_IN,
+ HWEMUL_GET_LOG, 0, 0, buf, sz, 1000);
+}
+
+int hwemul_rw_mem(struct hwemul_device_t *dev, int read, uint32_t addr, void *buf, size_t sz)
+{
+ size_t tot_sz = 0;
+ while(sz)
+ {
+ uint16_t xfer = MIN(1 * 1024, sz);
+ int ret = libusb_control_transfer(dev->handle,
+ LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_DEVICE |
+ (read ? LIBUSB_ENDPOINT_IN : LIBUSB_ENDPOINT_OUT),
+ HWEMUL_RW_MEM, addr & 0xffff, addr >> 16, buf, xfer, 1000);
+ if(ret != xfer)
+ return ret;
+ sz -= xfer;
+ addr += xfer;
+ buf += xfer;
+ tot_sz += xfer;
+ }
+ return tot_sz;
+}
+
+int hwemul_call(struct hwemul_device_t *dev, uint32_t addr)
+{
+ return libusb_control_transfer(dev->handle,
+ LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_DEVICE |
+ LIBUSB_ENDPOINT_OUT, HWEMUL_CALL, addr & 0xffff, addr >> 16, NULL, 0,
+ 1000);
+}
+
+int hwemul_jump(struct hwemul_device_t *dev, uint32_t addr)
+{
+ return libusb_control_transfer(dev->handle,
+ LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_DEVICE |
+ LIBUSB_ENDPOINT_OUT, HWEMUL_JUMP, addr & 0xffff, addr >> 16, NULL, 0,
+ 1000);
+}
+
+const char *hwemul_get_product_string(struct usb_resp_info_stmp_t *stmp)
+{
+ switch(stmp->chipid)
+ {
+ case 0x3700: return "STMP 3700";
+ case 0x37b0: return "STMP 3770";
+ case 0x3780: return "STMP 3780 / i.MX233";
+ default: return "unknown";
+ }
+}
+
+const char *hwemul_get_rev_string(struct usb_resp_info_stmp_t *stmp)
+{
+ switch(stmp->chipid)
+ {
+ case 0x37b0:
+ case 0x3780:
+ switch(stmp->rev)
+ {
+ case 0: return "TA1";
+ case 1: return "TA2";
+ case 2: return "TA3";
+ case 3: return "TA4";
+ default: return "unknown";
+ }
+ break;
+ default:
+ return "unknown";
+ }
+}
+
+int hwemul_aes_otp(struct hwemul_device_t *dev, void *buf, size_t sz, uint16_t param)
+{
+ int ret = libusb_control_transfer(dev->handle,
+ LIBUSB_REQUEST_TYPE_CLASS | LIBUSB_RECIPIENT_DEVICE |
+ LIBUSB_ENDPOINT_OUT, HWEMUL_AES_OTP, param, 0, buf, sz,
+ 1000);
+ if(ret <0 || (unsigned)ret != sz)
+ return -1;
+ int xfer;
+ ret = libusb_interrupt_transfer(dev->handle, dev->int_in, buf, sz, &xfer, 1000);
+ if(ret < 0 || (unsigned)xfer != sz)
+ return -1;
+ return ret;
+}
diff --git a/utils/hwstub/lib/hwemul.h b/utils/hwstub/lib/hwemul.h
new file mode 100644
index 0000000000..376ba65381
--- /dev/null
+++ b/utils/hwstub/lib/hwemul.h
@@ -0,0 +1,63 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id$
+ *
+ * Copyright (C) 2012 by Amaury Pouly
+ *
+ * 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __HWEMUL__
+#define __HWEMUL__
+
+#include <libusb.h>
+#include "hwemul_protocol.h"
+#include "hwemul_soc.h"
+
+/**
+ *
+ * Low-Level interface
+ *
+ */
+
+struct hwemul_device_t
+{
+ libusb_device_handle *handle;
+ int intf;
+ int bulk_in;
+ int bulk_out;
+ int int_in;
+};
+
+/* Requires then ->handle field only. Returns 0 on success */
+int hwemul_probe(struct hwemul_device_t *dev);
+/* Returns 0 on success */
+int hwemul_release(struct hwemul_device_t *dev);
+
+/* Returns number of bytes filled */
+int hwemul_get_info(struct hwemul_device_t *dev, uint16_t idx, void *info, size_t sz);
+/* Returns number of bytes filled */
+int hwemul_get_log(struct hwemul_device_t *dev, void *buf, size_t sz);
+/* Returns number of bytes written/read or <0 on error */
+int hwemul_rw_mem(struct hwemul_device_t *dev, int read, uint32_t addr, void *buf, size_t sz);
+/* Returns <0 on error */
+int hwemul_call(struct hwemul_device_t *dev, uint32_t addr);
+int hwemul_jump(struct hwemul_device_t *dev, uint32_t addr);
+/* Returns <0 on error. The size must be a multiple of 16. */
+int hwemul_aes_otp(struct hwemul_device_t *dev, void *buf, size_t sz, uint16_t param);
+
+const char *hwemul_get_product_string(struct usb_resp_info_stmp_t *stmp);
+const char *hwemul_get_rev_string(struct usb_resp_info_stmp_t *stmp);
+
+#endif /* __HWEMUL__ */ \ No newline at end of file
diff --git a/utils/hwstub/lib/hwemul_protocol.h b/utils/hwstub/lib/hwemul_protocol.h
new file mode 100644
index 0000000000..d3ffb6ce00
--- /dev/null
+++ b/utils/hwstub/lib/hwemul_protocol.h
@@ -0,0 +1 @@
+#include "../hwemul_protocol.h"