No need to pass the libusb context through from function to function.
Make them globally visible.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
scripts/imx/imx-usb-loader.c | 173 ++++++++++++++++++++-----------------------
1 file changed, 81 insertions(+), 92 deletions(-)
diff --git a/scripts/imx/imx-usb-loader.c b/scripts/imx/imx-usb-loader.c
index 5a84721..7925d2d 100644
--- a/scripts/imx/imx-usb-loader.c
+++ b/scripts/imx/imx-usb-loader.c
@@ -42,6 +42,8 @@
#define FT_LOAD_ONLY 0x00
int verbose;
+static struct libusb_device_handle *usb_dev_handle;
+static struct usb_id *usb_id;
struct mach_id {
struct mach_id * next;
@@ -292,12 +294,11 @@ static long get_file_size(FILE *xfile)
* EP2IN - bulk in
* (max packet size of 512 bytes)
*/
-static int transfer(struct libusb_device_handle *h, int report, unsigned char *p, unsigned cnt,
- int* last_trans, struct usb_id *p_id)
+static int transfer(int report, unsigned char *p, unsigned cnt, int *last_trans)
{
int err;
- if (cnt > p_id->mach_id->max_transfer)
- cnt = p_id->mach_id->max_transfer;
+ if (cnt > usb_id->mach_id->max_transfer)
+ cnt = usb_id->mach_id->max_transfer;
if (verbose > 4) {
printf("report=%i\n", report);
@@ -305,9 +306,10 @@ static int transfer(struct libusb_device_handle *h, int report, unsigned char *p
dump_bytes(p, cnt, 0);
}
- if (p_id->mach_id->mode == MODE_BULK) {
+ if (usb_id->mach_id->mode == MODE_BULK) {
*last_trans = 0;
- err = libusb_bulk_transfer(h, (report < 3) ? 1 : 2 + EP_IN, p, cnt, last_trans, 1000);
+ err = libusb_bulk_transfer(usb_dev_handle,
+ (report < 3) ? 1 : 2 + EP_IN, p, cnt, last_trans, 1000);
} else {
unsigned char tmp[1028];
@@ -315,7 +317,7 @@ static int transfer(struct libusb_device_handle *h, int report, unsigned char *p
if (report < 3) {
memcpy(&tmp[1], p, cnt);
- err = libusb_control_transfer(h,
+ err = libusb_control_transfer(usb_dev_handle,
CTRL_OUT,
HID_SET_REPORT,
(HID_REPORT_TYPE_OUTPUT << 8) | report,
@@ -327,7 +329,8 @@ static int transfer(struct libusb_device_handle *h, int report, unsigned char *p
} else {
*last_trans = 0;
memset(&tmp[1], 0, cnt);
- err = libusb_interrupt_transfer(h, 1 + EP_IN, tmp, cnt + 1, last_trans, 1000);
+ err = libusb_interrupt_transfer(usb_dev_handle,
+ 1 + EP_IN, tmp, cnt + 1, last_trans, 1000);
if (err >= 0) {
if (tmp[0] == (unsigned char)report) {
if (*last_trans > 1) {
@@ -349,7 +352,7 @@ static int transfer(struct libusb_device_handle *h, int report, unsigned char *p
return err;
}
-int do_status(libusb_device_handle *h, struct usb_id *p_id)
+int do_status(void)
{
int last_trans;
unsigned char tmp[64];
@@ -364,14 +367,14 @@ int do_status(libusb_device_handle *h, struct usb_id *p_id)
};
for (;;) {
- err = transfer(h, 1, (unsigned char*)status_command, 16, &last_trans, p_id);
+ err = transfer(1, (unsigned char*)status_command, 16, &last_trans);
if (verbose > 2)
printf("report 1, wrote %i bytes, err=%i\n", last_trans, err);
memset(tmp, 0, sizeof(tmp));
- err = transfer(h, 3, tmp, 64, &last_trans, p_id);
+ err = transfer(3, tmp, 64, &last_trans);
if (verbose > 2) {
printf("report 3, read %i bytes, err=%i\n", last_trans, err);
@@ -387,8 +390,8 @@ int do_status(libusb_device_handle *h, struct usb_id *p_id)
break;
}
- if (p_id->mach_id->mode == MODE_HID) {
- err = transfer(h, 4, tmp, sizeof(tmp), &last_trans, p_id);
+ if (usb_id->mach_id->mode == MODE_HID) {
+ err = transfer(4, tmp, sizeof(tmp), &last_trans);
if (err)
printf("4 in err=%i, last_trans=%i %02x %02x %02x %02x\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3]);
@@ -399,8 +402,7 @@ int do_status(libusb_device_handle *h, struct usb_id *p_id)
#define V(a) (((a) >> 24) & 0xff), (((a) >> 16) & 0xff), (((a) >> 8) & 0xff), ((a) & 0xff)
-static int read_memory(struct libusb_device_handle *h, struct usb_id *p_id,
- unsigned addr, unsigned char *dest, unsigned cnt)
+static int read_memory(unsigned addr, unsigned char *dest, unsigned cnt)
{
static unsigned char read_reg_command[] = {
1,
@@ -428,7 +430,7 @@ static int read_memory(struct libusb_device_handle *h, struct usb_id *p_id,
read_reg_command[10] = (unsigned char)(cnt);
for (;;) {
- err = transfer(h, 1, read_reg_command, 16, &last_trans, p_id);
+ err = transfer(1, read_reg_command, 16, &last_trans);
if (!err)
break;
printf("read_reg_command err=%i, last_trans=%i\n", err, last_trans);
@@ -438,7 +440,7 @@ static int read_memory(struct libusb_device_handle *h, struct usb_id *p_id,
retry++;
}
- err = transfer(h, 3, tmp, 4, &last_trans, p_id);
+ err = transfer(3, tmp, 4, &last_trans);
if (err) {
printf("r3 in err=%i, last_trans=%i %02x %02x %02x %02x\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3]);
@@ -449,7 +451,7 @@ static int read_memory(struct libusb_device_handle *h, struct usb_id *p_id,
while (rem) {
tmp[0] = tmp[1] = tmp[2] = tmp[3] = 0;
- err = transfer(h, 4, tmp, 64, &last_trans, p_id);
+ err = transfer(4, tmp, 64, &last_trans);
if (err) {
printf("r4 in err=%i, last_trans=%i %02x %02x %02x %02x cnt=%u rem=%d\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3], cnt, rem);
@@ -473,8 +475,7 @@ static int read_memory(struct libusb_device_handle *h, struct usb_id *p_id,
return err;
}
-static int write_memory(struct libusb_device_handle *h, struct usb_id *p_id,
- unsigned addr, unsigned val, int width)
+static int write_memory(unsigned addr, unsigned val, int width)
{
int retry = 0;
int last_trans;
@@ -517,7 +518,7 @@ static int write_memory(struct libusb_device_handle *h, struct usb_id *p_id,
write_reg_command[14] = (unsigned char)(val);
for (;;) {
- err = transfer(h, 1, write_reg_command, 16, &last_trans, p_id);
+ err = transfer(1, write_reg_command, 16, &last_trans);
if (!err)
break;
printf("write_reg_command err=%i, last_trans=%i\n", err, last_trans);
@@ -529,7 +530,7 @@ static int write_memory(struct libusb_device_handle *h, struct usb_id *p_id,
memset(tmp, 0, sizeof(tmp));
- err = transfer(h, 3, tmp, sizeof(tmp), &last_trans, p_id);
+ err = transfer(3, tmp, sizeof(tmp), &last_trans);
if (err) {
printf("w3 in err=%i, last_trans=%i %02x %02x %02x %02x\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3]);
@@ -538,15 +539,14 @@ static int write_memory(struct libusb_device_handle *h, struct usb_id *p_id,
memset(tmp, 0, sizeof(tmp));
- err = transfer(h, 4, tmp, sizeof(tmp), &last_trans, p_id);
+ err = transfer(4, tmp, sizeof(tmp), &last_trans);
if (err)
printf("w4 in err=%i, last_trans=%i %02x %02x %02x %02x\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3]);
return err;
}
-static int load_file(struct libusb_device_handle *h, struct usb_id *p_id,
- void *buf, unsigned len, unsigned dladdr, unsigned char type)
+static int load_file(void *buf, unsigned len, unsigned dladdr, unsigned char type)
{
static unsigned char dl_command[] = {
0x04,
@@ -576,7 +576,7 @@ static int load_file(struct libusb_device_handle *h, struct usb_id *p_id,
dl_command[15] = type;
for (;;) {
- err = transfer(h, 1, dl_command, 16, &last_trans, p_id);
+ err = transfer(1, dl_command, 16, &last_trans);
if (!err)
break;
@@ -589,8 +589,8 @@ static int load_file(struct libusb_device_handle *h, struct usb_id *p_id,
retry = 0;
- if (p_id->mach_id->mode == MODE_BULK) {
- err = transfer(h, 3, tmp, sizeof(tmp), &last_trans, p_id);
+ if (usb_id->mach_id->mode == MODE_BULK) {
+ err = transfer(3, tmp, sizeof(tmp), &last_trans);
if (err)
printf("in err=%i, last_trans=%i %02x %02x %02x %02x\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3]);
@@ -600,12 +600,12 @@ static int load_file(struct libusb_device_handle *h, struct usb_id *p_id,
cnt = len;
while (1) {
- int now = get_min(cnt, p_id->mach_id->max_transfer);
+ int now = get_min(cnt, usb_id->mach_id->max_transfer);
if (!now)
break;
- err = transfer(h, 2, p, now, &now, p_id);
+ err = transfer(2, p, now, &now);
if (err) {
printf("dl_command err=%i, last_trans=%i\n", err, last_trans);
return err;
@@ -615,24 +615,23 @@ static int load_file(struct libusb_device_handle *h, struct usb_id *p_id,
cnt -= now;
}
- if (p_id->mach_id->mode == MODE_HID) {
- err = transfer(h, 3, tmp, sizeof(tmp), &last_trans, p_id);
+ if (usb_id->mach_id->mode == MODE_HID) {
+ err = transfer(3, tmp, sizeof(tmp), &last_trans);
if (err)
printf("3 in err=%i, last_trans=%i %02x %02x %02x %02x\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3]);
- err = transfer(h, 4, tmp, sizeof(tmp), &last_trans, p_id);
+ err = transfer(4, tmp, sizeof(tmp), &last_trans);
if (err)
printf("4 in err=%i, last_trans=%i %02x %02x %02x %02x\n",
err, last_trans, tmp[0], tmp[1], tmp[2], tmp[3]);
} else {
- do_status(h, p_id);
+ do_status();
}
return transfer_size;
}
-static int write_dcd_table_ivt(struct libusb_device_handle *h, struct usb_id *p_id,
- struct imx_flash_header_v2 *hdr, unsigned char *file_start, unsigned cnt)
+static int write_dcd_table_ivt(struct imx_flash_header_v2 *hdr, unsigned char *file_start, unsigned cnt)
{
unsigned char *dcd_end;
unsigned m_length;
@@ -694,7 +693,7 @@ static int write_dcd_table_ivt(struct libusb_device_handle *h, struct usb_id *p_
unsigned val = (dcd[4] << 24) | (dcd[5] << 16) | (dcd[6] << 8) | dcd[7];
dcd += 8;
- err = write_memory(h, p_id, addr, val, 4);
+ err = write_memory(addr, val, 4);
if (err < 0)
return err;
}
@@ -749,8 +748,7 @@ static int get_dcd_range_old(struct imx_flash_header *hdr,
return 0;
}
-static int write_dcd_table_old(struct libusb_device_handle *h, struct usb_id *p_id,
- struct imx_flash_header *hdr, unsigned char *file_start, unsigned cnt)
+static int write_dcd_table_old(struct imx_flash_header *hdr, unsigned char *file_start, unsigned cnt)
{
unsigned val;
unsigned char *dcd_end;
@@ -771,14 +769,14 @@ static int write_dcd_table_old(struct libusb_device_handle *h, struct usb_id *p_
case 1:
if (verbose > 1)
printf("type=%08x *0x%08x = 0x%08x\n", type, addr, val);
- err = write_memory(h, p_id, addr, val, 1);
+ err = write_memory(addr, val, 1);
if (err < 0)
return err;
break;
case 4:
if (verbose > 1)
printf("type=%08x *0x%08x = 0x%08x\n", type, addr, val);
- err = write_memory(h, p_id, addr, val, 4);
+ err = write_memory(addr, val, 4);
if (err < 0)
return err;
break;
@@ -795,8 +793,7 @@ static int write_dcd_table_old(struct libusb_device_handle *h, struct usb_id *p_
return err;
}
-static int verify_memory(struct libusb_device_handle *h, struct usb_id *p_id,
- const void *buf, unsigned len, unsigned addr)
+static int verify_memory(const void *buf, unsigned len, unsigned addr)
{
int ret, mismatch = 0;
void *readbuf;
@@ -806,7 +803,7 @@ static int verify_memory(struct libusb_device_handle *h, struct usb_id *p_id,
if (!readbuf)
return -ENOMEM;
- ret = read_memory(h, p_id, addr, readbuf, len);
+ ret = read_memory(addr, readbuf, len);
if (ret < 0)
goto err;
@@ -834,12 +831,12 @@ err:
return ret;
}
-static int is_header(struct usb_id *p_id, unsigned char *p)
+static int is_header(unsigned char *p)
{
struct imx_flash_header *ohdr = (struct imx_flash_header *)p;
struct imx_flash_header_v2 *hdr = (struct imx_flash_header_v2 *)p;
- switch (p_id->mach_id->header_type) {
+ switch (usb_id->mach_id->header_type) {
case HDR_MX51:
if (ohdr->app_code_barker == 0xb1)
return 1;
@@ -852,21 +849,19 @@ static int is_header(struct usb_id *p_id, unsigned char *p)
return 0;
}
-static int perform_dcd(struct libusb_device_handle *h, struct usb_id *p_id, unsigned char *p,
- unsigned char *file_start, unsigned cnt)
+static int perform_dcd(unsigned char *p, unsigned char *file_start, unsigned cnt)
{
struct imx_flash_header *ohdr = (struct imx_flash_header *)p;
struct imx_flash_header_v2 *hdr = (struct imx_flash_header_v2 *)p;
int ret = 0;
- switch (p_id->mach_id->header_type) {
+ switch (usb_id->mach_id->header_type) {
case HDR_MX51:
- ret = write_dcd_table_old(h, p_id, ohdr, file_start, cnt);
- ohdr->dcd = 0;
+ ret = write_dcd_table_old(ohdr, file_start, cnt);
break;
case HDR_MX53:
- ret = write_dcd_table_ivt(h, p_id, hdr, file_start, cnt);
+ ret = write_dcd_table_ivt(hdr, file_start, cnt);
hdr->dcd_ptr = 0;
break;
@@ -875,13 +870,12 @@ static int perform_dcd(struct libusb_device_handle *h, struct usb_id *p_id, unsi
return ret;
}
-static int clear_dcd_ptr(struct libusb_device_handle *h, struct usb_id *p_id,
- unsigned char *p, unsigned char *file_start, unsigned cnt)
+static int clear_dcd_ptr(unsigned char *p, unsigned char *file_start, unsigned cnt)
{
struct imx_flash_header *ohdr = (struct imx_flash_header *)p;
struct imx_flash_header_v2 *hdr = (struct imx_flash_header_v2 *)p;
- switch (p_id->mach_id->header_type) {
+ switch (usb_id->mach_id->header_type) {
case HDR_MX51:
printf("clear dcd_ptr=0x%08x\n", ohdr->dcd);
ohdr->dcd = 0;
@@ -894,12 +888,12 @@ static int clear_dcd_ptr(struct libusb_device_handle *h, struct usb_id *p_id,
return 0;
}
-static int get_dl_start(struct usb_id *p_id, unsigned char *p, unsigned char *file_start,
+static int get_dl_start(unsigned char *p, unsigned char *file_start,
unsigned cnt, unsigned *dladdr, unsigned *max_length, unsigned *plugin,
unsigned *header_addr)
{
unsigned char* file_end = file_start + cnt;
- switch (p_id->mach_id->header_type) {
+ switch (usb_id->mach_id->header_type) {
case HDR_MX51:
{
struct imx_flash_header *ohdr = (struct imx_flash_header *)p;
@@ -941,8 +935,7 @@ static int get_dl_start(struct usb_id *p_id, unsigned char *p, unsigned char *fi
return 0;
}
-static int process_header(struct libusb_device_handle *h, struct usb_id *p_id,
- struct usb_work *curr, unsigned char *buf, int cnt,
+static int process_header(struct usb_work *curr, unsigned char *buf, int cnt,
unsigned *p_dladdr, unsigned *p_max_length, unsigned *p_plugin,
unsigned *p_header_addr)
{
@@ -955,17 +948,17 @@ static int process_header(struct libusb_device_handle *h, struct usb_id *p_id,
for (header_offset = 0; header_offset < header_max; header_offset += header_inc, p += header_inc) {
- if (!is_header(p_id, p))
+ if (!is_header(p))
continue;
- ret = get_dl_start(p_id, p, buf, cnt, p_dladdr, p_max_length, p_plugin, p_header_addr);
+ ret = get_dl_start(p, buf, cnt, p_dladdr, p_max_length, p_plugin, p_header_addr);
if (ret < 0) {
printf("!!get_dl_start returned %i\n", ret);
return ret;
}
if (curr->dcd) {
- ret = perform_dcd(h, p_id, p, buf, cnt);
+ ret = perform_dcd(p, buf, cnt);
if (ret < 0) {
printf("!!perform_dcd returned %i\n", ret);
return ret;
@@ -978,7 +971,7 @@ static int process_header(struct libusb_device_handle *h, struct usb_id *p_id,
}
if (curr->clear_dcd) {
- ret = clear_dcd_ptr(h, p_id, p, buf, cnt);
+ ret = clear_dcd_ptr(p, buf, cnt);
if (ret < 0) {
printf("!!clear_dcd returned %i\n", ret);
return ret;
@@ -1004,8 +997,7 @@ static int process_header(struct libusb_device_handle *h, struct usb_id *p_id,
return -ENODEV;
}
-static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
- struct usb_work *curr, int verify)
+static int do_irom_download(struct usb_work *curr, int verify)
{
static unsigned char jump_command[] = {0x0b,0x0b, V(0), 0x00, V(0x00000000), V(0), 0x00};
@@ -1058,7 +1050,7 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
max_length = fsize;
- ret = process_header(h, p_id, curr, buf, cnt,
+ ret = process_header(curr, buf, cnt,
&dladdr, &max_length, &plugin, &header_addr);
if (ret < 0)
goto cleanup;
@@ -1087,7 +1079,7 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
type = (curr->plug || curr->jump_mode) ? FT_APP : FT_LOAD_ONLY;
- if (p_id->mach_id->mode == MODE_BULK && type == FT_APP) {
+ if (usb_id->mach_id->mode == MODE_BULK && type == FT_APP) {
/* No jump command, dladdr should point to header */
dladdr = header_addr;
}
@@ -1119,7 +1111,7 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
memcpy(verify_buffer, p, 64);
- if ((type == FT_APP) && (p_id->mach_id->mode != MODE_HID)) {
+ if ((type == FT_APP) && (usb_id->mach_id->mode != MODE_HID)) {
type = FT_LOAD_ONLY;
verify = 2;
}
@@ -1128,7 +1120,7 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
printf("loading binary file(%s) to %08x, skip=0x%x, fsize=%u type=%d...\n",
curr->filename, dladdr, skip, fsize, type);
- ret = load_file(h, p_id, image, fsize, dladdr, type);
+ ret = load_file(image, fsize, dladdr, type);
if (ret < 0)
goto cleanup;
@@ -1137,7 +1129,7 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
if (verify) {
printf("verifying file...\n");
- ret = verify_memory(h, p_id, image, fsize, dladdr);
+ ret = verify_memory(image, fsize, dladdr);
if (ret < 0) {
printf("verifying failed\n");
goto cleanup;
@@ -1151,15 +1143,14 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
* so we load part of the image again with type FT_APP
* this time.
*/
- ret = load_file(h, p_id, verify_buffer, 64,
- dladdr, FT_APP);
+ ret = load_file(verify_buffer, 64, dladdr, FT_APP);
if (ret < 0)
goto cleanup;
}
}
- if (p_id->mach_id->mode == MODE_HID && type == FT_APP) {
+ if (usb_id->mach_id->mode == MODE_HID && type == FT_APP) {
printf("jumping to 0x%08x\n", header_addr);
jump_command[2] = (unsigned char)(header_addr >> 24);
@@ -1171,7 +1162,7 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
retry = 0;
for (;;) {
- err = transfer(h, 1, jump_command, 16, &last_trans, p_id);
+ err = transfer(1, jump_command, 16, &last_trans);
if (!err)
break;
@@ -1184,7 +1175,7 @@ static int do_irom_download(struct libusb_device_handle *h, struct usb_id *p_id,
}
memset(tmp, 0, sizeof(tmp));
- err = transfer(h, 3, tmp, sizeof(tmp), &last_trans, p_id);
+ err = transfer(3, tmp, sizeof(tmp), &last_trans);
if (err)
printf("j3 in err=%i, last_trans=%i %02x %02x %02x %02x\n",
@@ -1211,7 +1202,6 @@ static void usage(const char *prgname)
int main(int argc, char *argv[])
{
- struct usb_id *p_id = NULL;
struct mach_id *mach;
libusb_device **devs;
libusb_device *dev;
@@ -1219,7 +1209,6 @@ int main(int argc, char *argv[])
int err;
int ret = 1;
ssize_t cnt;
- libusb_device_handle *h = NULL;
int config = 0;
int verify = 0;
struct usb_work w = {};
@@ -1267,7 +1256,7 @@ int main(int argc, char *argv[])
goto out;
}
- err = libusb_open(dev, &h);
+ err = libusb_open(dev, &usb_dev_handle);
if (err) {
fprintf(stderr, "Could not open device vid=0x%x pid=0x%x err=%d\n",
mach->vid, mach->pid, err);
@@ -1276,44 +1265,44 @@ int main(int argc, char *argv[])
libusb_free_device_list(devs, 1);
- libusb_get_configuration(h, &config);
+ libusb_get_configuration(usb_dev_handle, &config);
- if (libusb_kernel_driver_active(h, 0))
- libusb_detach_kernel_driver(h, 0);
+ if (libusb_kernel_driver_active(usb_dev_handle, 0))
+ libusb_detach_kernel_driver(usb_dev_handle, 0);
- err = libusb_claim_interface(h, 0);
+ err = libusb_claim_interface(usb_dev_handle, 0);
if (err) {
printf("Claim failed\n");
goto out;
}
- p_id = malloc(sizeof(*p_id));
- if (!p_id) {
+ usb_id = malloc(sizeof(*usb_id));
+ if (!usb_id) {
perror("malloc");
exit(1);
}
- p_id->mach_id = mach;
+ usb_id->mach_id = mach;
- err = do_status(h, p_id);
+ err = do_status();
if (err) {
printf("status failed\n");
goto out;
}
- err = do_irom_download(h, p_id, &w, verify);
+ err = do_irom_download(&w, verify);
if (err) {
- err = do_status(h, p_id);
+ err = do_status();
goto out;
}
ret = 0;
out:
- if (p_id)
- free(p_id);
+ if (usb_id)
+ free(usb_id);
- if (h)
- libusb_close(h);
+ if (usb_dev_handle)
+ libusb_close(usb_dev_handle);
libusb_exit(NULL);
--
2.7.0.rc3
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