Skip to content

GitLab

Commit 1c8f81aa authored by Bernhard Nortmann's avatar Bernhard Nortmann
Browse files

fel: Modify existing USB interface to use a new "FEL device" type 



This enables us to move forward to a cleaner implementation,
where the "core" fel.c code will become independent of direct
libusb usage. After moving USB code to a separate module,
in the end the libusb handle could become an 'opaque' field of
feldev_handle.

The "device" handle might also be extended later, to provide
(FEL) version data and SoC-specific information (chip ID, SRAM
info, human-readable name).
Signed-off-by: default avatarBernhard Nortmann <bernhard.nortmann@web.de>
parent 85943dfa
Show whitespace changes
Inline Side-by-side
fel.c
View file @ 1c8f81aa
......@@ -53,6 +53,18 @@ void usb_error(int rc, const char *caption, int exitcode)
exit(exitcode);
}
/* 'Private' data type that will be used as "USB handle" */
typedef struct _felusb_handle {
libusb_device_handle *handle;
int endpoint_out, endpoint_in;
bool iface_detached;
} felusb_handle;
/* More general FEL "device" handle, to be extended later */
typedef struct {
felusb_handle *usb;
} feldev_handle;
struct aw_usb_request {
char signature[8];
uint32_t length;
......@@ -172,7 +184,7 @@ int get_image_type(const uint8_t *buf, size_t len)
return buf[30];
}
void aw_send_usb_request(libusb_device_handle *usb, int type, int length)
static void aw_send_usb_request(feldev_handle *dev, int type, int length)
{
struct aw_usb_request req = {
.signature = "AWUC",
......@@ -181,29 +193,33 @@ void aw_send_usb_request(libusb_device_handle *usb, int type, int length)
.unknown1 = htole32(0x0c000000)
};
req.length2 = req.length;
usb_bulk_send(usb, AW_USB_FEL_BULK_EP_OUT, &req, sizeof(req), false);
usb_bulk_send(dev->usb->handle, AW_USB_FEL_BULK_EP_OUT,
&req, sizeof(req), false);
}
void aw_read_usb_response(libusb_device_handle *usb)
static void aw_read_usb_response(feldev_handle *dev)
{
char buf[13];
usb_bulk_recv(usb, AW_USB_FEL_BULK_EP_IN, &buf, sizeof(buf));
usb_bulk_recv(dev->usb->handle, AW_USB_FEL_BULK_EP_IN,
buf, sizeof(buf));
assert(strcmp(buf, "AWUS") == 0);
}
void aw_usb_write(libusb_device_handle *usb, const void *data, size_t len,
static void aw_usb_write(feldev_handle *dev, const void *data, size_t len,
bool progress)
{
aw_send_usb_request(usb, AW_USB_WRITE, len);
usb_bulk_send(usb, AW_USB_FEL_BULK_EP_OUT, data, len, progress);
aw_read_usb_response(usb);
aw_send_usb_request(dev, AW_USB_WRITE, len);
usb_bulk_send(dev->usb->handle, AW_USB_FEL_BULK_EP_OUT,
data, len, progress);
aw_read_usb_response(dev);
}
void aw_usb_read(libusb_device_handle *usb, const void *data, size_t len)
static void aw_usb_read(feldev_handle *dev, const void *data, size_t len)
{
aw_send_usb_request(usb, AW_USB_READ, len);
usb_bulk_send(usb, AW_USB_FEL_BULK_EP_IN, data, len, false);
aw_read_usb_response(usb);
aw_send_usb_request(dev, AW_USB_READ, len);
usb_bulk_send(dev->usb->handle, AW_USB_FEL_BULK_EP_IN,
data, len, false);
aw_read_usb_response(dev);
}
struct aw_fel_request {
......@@ -218,27 +234,28 @@ static const int AW_FEL_1_WRITE = 0x101;
static const int AW_FEL_1_EXEC = 0x102;
static const int AW_FEL_1_READ = 0x103;
void aw_send_fel_request(libusb_device_handle *usb, int type, uint32_t addr, uint32_t length)
void aw_send_fel_request(feldev_handle *dev, int type,
uint32_t addr, uint32_t length)
{
struct aw_fel_request req = {
.request = htole32(type),
.address = htole32(addr),
.length = htole32(length)
};
aw_usb_write(usb, &req, sizeof(req), false);
aw_usb_write(dev, &req, sizeof(req), false);
}
void aw_read_fel_status(libusb_device_handle *usb)
void aw_read_fel_status(feldev_handle *dev)
{
char buf[8];
aw_usb_read(usb, &buf, sizeof(buf));
aw_usb_read(dev, buf, sizeof(buf));
}
void aw_fel_get_version(libusb_device_handle *usb, struct aw_fel_version *buf)
void aw_fel_get_version(feldev_handle *dev, struct aw_fel_version *buf)
{
aw_send_fel_request(usb, AW_FEL_VERSION, 0, 0);
aw_usb_read(usb, buf, sizeof(*buf));
aw_read_fel_status(usb);
aw_send_fel_request(dev, AW_FEL_VERSION, 0, 0);
aw_usb_read(dev, buf, sizeof(*buf));
aw_read_fel_status(dev);
buf->soc_id = (le32toh(buf->soc_id) >> 8) & 0xFFFF;
buf->unknown_0a = le32toh(buf->unknown_0a);
......@@ -248,10 +265,10 @@ void aw_fel_get_version(libusb_device_handle *usb, struct aw_fel_version *buf)
buf->pad[1] = le32toh(buf->pad[1]);
}
void aw_fel_print_version(libusb_device_handle *usb)
void aw_fel_print_version(feldev_handle *dev)
{
struct aw_fel_version buf;
aw_fel_get_version(usb, &buf);
aw_fel_get_version(dev, &buf);
const char *soc_name="unknown";
switch (buf.soc_id) {
......@@ -275,24 +292,24 @@ void aw_fel_print_version(libusb_device_handle *usb)
buf.scratchpad, buf.pad[0], buf.pad[1]);
}
void aw_fel_read(libusb_device_handle *usb, uint32_t offset, void *buf, size_t len)
void aw_fel_read(feldev_handle *dev, uint32_t offset, void *buf, size_t len)
{
aw_send_fel_request(usb, AW_FEL_1_READ, offset, len);
aw_usb_read(usb, buf, len);
aw_read_fel_status(usb);
aw_send_fel_request(dev, AW_FEL_1_READ, offset, len);
aw_usb_read(dev, buf, len);
aw_read_fel_status(dev);
}
void aw_fel_write(libusb_device_handle *usb, void *buf, uint32_t offset, size_t len)
void aw_fel_write(feldev_handle *dev, void *buf, uint32_t offset, size_t len)
{
aw_send_fel_request(usb, AW_FEL_1_WRITE, offset, len);
aw_usb_write(usb, buf, len, false);
aw_read_fel_status(usb);
aw_send_fel_request(dev, AW_FEL_1_WRITE, offset, len);
aw_usb_write(dev, buf, len, false);
aw_read_fel_status(dev);
}
void aw_fel_execute(libusb_device_handle *usb, uint32_t offset)
void aw_fel_execute(feldev_handle *dev, uint32_t offset)
{
aw_send_fel_request(usb, AW_FEL_1_EXEC, offset, 0);
aw_read_fel_status(usb);
aw_send_fel_request(dev, AW_FEL_1_EXEC, offset, 0);
aw_read_fel_status(dev);
}
/*
......@@ -302,7 +319,7 @@ void aw_fel_execute(libusb_device_handle *usb, uint32_t offset)
* progress callbacks.
* The return value represents elapsed time in seconds (needed for execution).
*/
double aw_write_buffer(libusb_device_handle *usb, void *buf, uint32_t offset,
double aw_write_buffer(feldev_handle *dev, void *buf, uint32_t offset,
size_t len, bool progress)
{
/* safeguard against overwriting an already loaded U-Boot binary */
......@@ -316,9 +333,9 @@ double aw_write_buffer(libusb_device_handle *usb, void *buf, uint32_t offset,
exit(1);
}
double start = gettime();
aw_send_fel_request(usb, AW_FEL_1_WRITE, offset, len);
aw_usb_write(usb, buf, len, progress);
aw_read_fel_status(usb);
aw_send_fel_request(dev, AW_FEL_1_WRITE, offset, len);
aw_usb_write(dev, buf, len, progress);
aw_read_fel_status(dev);
return gettime() - start;
}
......@@ -405,33 +422,33 @@ void *load_file(const char *name, size_t *size)
return buf;
}
void aw_fel_hexdump(libusb_device_handle *usb, uint32_t offset, size_t size)
void aw_fel_hexdump(feldev_handle *dev, uint32_t offset, size_t size)
{
unsigned char buf[size];
aw_fel_read(usb, offset, buf, size);
aw_fel_read(dev, offset, buf, size);
hexdump(buf, offset, size);
}
void aw_fel_dump(libusb_device_handle *usb, uint32_t offset, size_t size)
void aw_fel_dump(feldev_handle *dev, uint32_t offset, size_t size)
{
unsigned char buf[size];
aw_fel_read(usb, offset, buf, size);
aw_fel_read(dev, offset, buf, size);
fwrite(buf, size, 1, stdout);
}
void aw_fel_fill(libusb_device_handle *usb, uint32_t offset, size_t size, unsigned char value)
void aw_fel_fill(feldev_handle *dev, uint32_t offset, size_t size, unsigned char value)
{
unsigned char buf[size];
memset(buf, value, size);
aw_write_buffer(usb, buf, offset, size, false);
aw_write_buffer(dev, buf, offset, size, false);
}
soc_info_t *aw_fel_get_soc_info(libusb_device_handle *usb)
soc_info_t *aw_fel_get_soc_info(feldev_handle *dev)
{
/* persistent SoC info, retrieves result pointer once and caches it */
static soc_info_t *result = NULL;
if (result == NULL) {
struct aw_fel_version buf;
aw_fel_get_version(usb, &buf);
aw_fel_get_version(dev, &buf);
result = get_soc_info_from_version(&buf);
}
......@@ -445,7 +462,7 @@ static uint32_t fel_to_spl_thunk[] = {
#define DRAM_BASE 0x40000000
#define DRAM_SIZE 0x80000000
uint32_t aw_read_arm_cp_reg(libusb_device_handle *usb, soc_info_t *soc_info,
uint32_t aw_read_arm_cp_reg(feldev_handle *dev, soc_info_t *soc_info,
uint32_t coproc, uint32_t opc1, uint32_t crn,
uint32_t crm, uint32_t opc2)
{
......@@ -461,13 +478,13 @@ uint32_t aw_read_arm_cp_reg(libusb_device_handle *usb, soc_info_t *soc_info,
htole32(0xe58f0000), /* str r0, [pc] */
htole32(0xe12fff1e), /* bx lr */
};
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_read(usb, soc_info->scratch_addr + 12, &val, sizeof(val));
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(dev, soc_info->scratch_addr);
aw_fel_read(dev, soc_info->scratch_addr + 12, &val, sizeof(val));
return le32toh(val);
}
void aw_write_arm_cp_reg(libusb_device_handle *usb, soc_info_t *soc_info,
void aw_write_arm_cp_reg(feldev_handle *dev, soc_info_t *soc_info,
uint32_t coproc, uint32_t opc1, uint32_t crn,
uint32_t crm, uint32_t opc2, uint32_t val)
{
......@@ -485,8 +502,8 @@ void aw_write_arm_cp_reg(libusb_device_handle *usb, soc_info_t *soc_info,
htole32(0xe12fff1e), /* bx lr */
htole32(val)
};
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(dev, soc_info->scratch_addr);
}
/*
......@@ -500,7 +517,7 @@ void aw_write_arm_cp_reg(libusb_device_handle *usb, soc_info_t *soc_info,
#define LCODE_MAX_WORDS (LCODE_MAX_TOTAL - LCODE_ARM_WORDS) /* data words */
/* multiple "readl" from sequential addresses to a destination buffer */
void aw_fel_readl_n(libusb_device_handle *usb, uint32_t addr,
void aw_fel_readl_n(feldev_handle *dev, uint32_t addr,
uint32_t *dst, size_t count)
{
if (count == 0) return;
......@@ -509,7 +526,7 @@ void aw_fel_readl_n(libusb_device_handle *usb, uint32_t addr,
"ERROR: Max. word count exceeded, truncating aw_fel_readl_n() transfer\n");
count = LCODE_MAX_WORDS;
}
soc_info_t *soc_info = aw_fel_get_soc_info(usb);
soc_info_t *soc_info = aw_fel_get_soc_info(dev);
assert(LCODE_MAX_WORDS < 256); /* protect against corruption of ARM code */
uint32_t arm_code[] = {
......@@ -531,11 +548,11 @@ void aw_fel_readl_n(libusb_device_handle *usb, uint32_t addr,
assert(sizeof(arm_code) == LCODE_ARM_SIZE);
/* scratch buffer setup: transfers ARM code, including addr and count */
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
/* execute code, read back the result */
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_execute(dev, soc_info->scratch_addr);
uint32_t buffer[count];
aw_fel_read(usb, soc_info->scratch_addr + LCODE_ARM_SIZE,
aw_fel_read(dev, soc_info->scratch_addr + LCODE_ARM_SIZE,
buffer, sizeof(buffer));
/* extract values to destination buffer */
uint32_t *val = buffer;
......@@ -544,10 +561,10 @@ void aw_fel_readl_n(libusb_device_handle *usb, uint32_t addr,
}
/* "readl" of a single value */
uint32_t aw_fel_readl(libusb_device_handle *usb, uint32_t addr)
uint32_t aw_fel_readl(feldev_handle *dev, uint32_t addr)
{
uint32_t val;
aw_fel_readl_n(usb, addr, &val, 1);
aw_fel_readl_n(dev, addr, &val, 1);
return val;
}
......@@ -555,12 +572,11 @@ uint32_t aw_fel_readl(libusb_device_handle *usb, uint32_t addr)
* aw_fel_readl_n() wrapper that can handle large transfers. If necessary,
* those will be done in separate 'chunks' of no more than LCODE_MAX_WORDS.
*/
void fel_readl_n(libusb_device_handle *usb, uint32_t addr,
uint32_t *dst, size_t count)
void fel_readl_n(feldev_handle *dev, uint32_t addr, uint32_t *dst, size_t count)
{
while (count > 0) {
size_t n = count > LCODE_MAX_WORDS ? LCODE_MAX_WORDS : count;
aw_fel_readl_n(usb, addr, dst, n);
aw_fel_readl_n(dev, addr, dst, n);
addr += n * sizeof(uint32_t);
dst += n;
count -= n;
......@@ -568,7 +584,7 @@ void fel_readl_n(libusb_device_handle *usb, uint32_t addr,
}
/* multiple "writel" from a source buffer to sequential addresses */
void aw_fel_writel_n(libusb_device_handle *usb, uint32_t addr,
void aw_fel_writel_n(feldev_handle *dev, uint32_t addr,
uint32_t *src, size_t count)
{
if (count == 0) return;
......@@ -577,7 +593,7 @@ void aw_fel_writel_n(libusb_device_handle *usb, uint32_t addr,
"ERROR: Max. word count exceeded, truncating aw_fel_writel_n() transfer\n");
count = LCODE_MAX_WORDS;
}
soc_info_t *soc_info = aw_fel_get_soc_info(usb);
soc_info_t *soc_info = aw_fel_get_soc_info(dev);
assert(LCODE_MAX_WORDS < 256); /* protect against corruption of ARM code */
/*
......@@ -606,42 +622,41 @@ void aw_fel_writel_n(libusb_device_handle *usb, uint32_t addr,
for (i = 0; i < count; i++)
arm_code[LCODE_ARM_WORDS + i] = htole32(*src++);
/* scratch buffer setup: transfers ARM code and data */
aw_fel_write(usb, arm_code, soc_info->scratch_addr,
aw_fel_write(dev, arm_code, soc_info->scratch_addr,
(LCODE_ARM_WORDS + count) * sizeof(uint32_t));
/* execute, and we're done */
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_execute(dev, soc_info->scratch_addr);
}
/* "writel" of a single value */
void aw_fel_writel(libusb_device_handle *usb, uint32_t addr, uint32_t val)
void aw_fel_writel(feldev_handle *dev, uint32_t addr, uint32_t val)
{
aw_fel_writel_n(usb, addr, &val, 1);
aw_fel_writel_n(dev, addr, &val, 1);
}
/*
* aw_fel_writel_n() wrapper that can handle large transfers. If necessary,
* those will be done in separate 'chunks' of no more than LCODE_MAX_WORDS.
*/
void fel_writel_n(libusb_device_handle *usb, uint32_t addr,
uint32_t *src, size_t count)
void fel_writel_n(feldev_handle *dev, uint32_t addr, uint32_t *src, size_t count)
{
while (count > 0) {
size_t n = count > LCODE_MAX_WORDS ? LCODE_MAX_WORDS : count;
aw_fel_writel_n(usb, addr, src, n);
aw_fel_writel_n(dev, addr, src, n);
addr += n * sizeof(uint32_t);
src += n;
count -= n;
}
}
void aw_fel_print_sid(libusb_device_handle *usb)
void aw_fel_print_sid(feldev_handle *dev)
{
soc_info_t *soc_info = aw_fel_get_soc_info(usb);
soc_info_t *soc_info = aw_fel_get_soc_info(dev);
if (soc_info->sid_addr) {
pr_info("SID key (e-fuses) at 0x%08X\n", soc_info->sid_addr);
uint32_t key[4];
aw_fel_readl_n(usb, soc_info->sid_addr, key, 4);
aw_fel_readl_n(dev, soc_info->sid_addr, key, 4);
unsigned int i;
/* output SID in "xxxxxxxx:xxxxxxxx:xxxxxxxx:xxxxxxxx" format */
......@@ -653,7 +668,7 @@ void aw_fel_print_sid(libusb_device_handle *usb)
}
}
void aw_enable_l2_cache(libusb_device_handle *usb, soc_info_t *soc_info)
void aw_enable_l2_cache(feldev_handle *dev, soc_info_t *soc_info)
{
uint32_t arm_code[] = {
htole32(0xee112f30), /* mrc 15, 0, r2, cr1, cr0, {1} */
......@@ -662,11 +677,11 @@ void aw_enable_l2_cache(libusb_device_handle *usb, soc_info_t *soc_info)
htole32(0xe12fff1e), /* bx lr */
};
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(dev, soc_info->scratch_addr);
}
void aw_get_stackinfo(libusb_device_handle *usb, soc_info_t *soc_info,
void aw_get_stackinfo(feldev_handle *dev, soc_info_t *soc_info,
uint32_t *sp_irq, uint32_t *sp)
{
uint32_t results[2] = { 0 };
......@@ -679,9 +694,9 @@ void aw_get_stackinfo(libusb_device_handle *usb, soc_info_t *soc_info,
htole32(0xe12fff1e), /* bx lr */
};
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_read(usb, soc_info->scratch_addr + 0x10, results, 8);
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(dev, soc_info->scratch_addr);
aw_fel_read(dev, soc_info->scratch_addr + 0x10, results, 8);
#else
/* Works everywhere */
uint32_t arm_code[] = {
......@@ -696,56 +711,56 @@ void aw_get_stackinfo(libusb_device_handle *usb, soc_info_t *soc_info,
htole32(0xe12fff1e), /* bx lr */
};
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_read(usb, soc_info->scratch_addr + 0x24, results, 8);
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(dev, soc_info->scratch_addr);
aw_fel_read(dev, soc_info->scratch_addr + 0x24, results, 8);
#endif
*sp_irq = le32toh(results[0]);
*sp = le32toh(results[1]);
}
uint32_t aw_get_ttbr0(libusb_device_handle *usb, soc_info_t *soc_info)
uint32_t aw_get_ttbr0(feldev_handle *dev, soc_info_t *soc_info)
{
return aw_read_arm_cp_reg(usb, soc_info, 15, 0, 2, 0, 0);
return aw_read_arm_cp_reg(dev, soc_info, 15, 0, 2, 0, 0);
}
uint32_t aw_get_ttbcr(libusb_device_handle *usb, soc_info_t *soc_info)
uint32_t aw_get_ttbcr(feldev_handle *dev, soc_info_t *soc_info)
{
return aw_read_arm_cp_reg(usb, soc_info, 15, 0, 2, 0, 2);
return aw_read_arm_cp_reg(dev, soc_info, 15, 0, 2, 0, 2);
}
uint32_t aw_get_dacr(libusb_device_handle *usb, soc_info_t *soc_info)
uint32_t aw_get_dacr(feldev_handle *dev, soc_info_t *soc_info)
{
return aw_read_arm_cp_reg(usb, soc_info, 15, 0, 3, 0, 0);
return aw_read_arm_cp_reg(dev, soc_info, 15, 0, 3, 0, 0);
}
uint32_t aw_get_sctlr(libusb_device_handle *usb, soc_info_t *soc_info)
uint32_t aw_get_sctlr(feldev_handle *dev, soc_info_t *soc_info)
{
return aw_read_arm_cp_reg(usb, soc_info, 15, 0, 1, 0, 0);
return aw_read_arm_cp_reg(dev, soc_info, 15, 0, 1, 0, 0);
}
void aw_set_ttbr0(libusb_device_handle *usb, soc_info_t *soc_info,
void aw_set_ttbr0(feldev_handle *dev, soc_info_t *soc_info,
uint32_t ttbr0)
{
return aw_write_arm_cp_reg(usb, soc_info, 15, 0, 2, 0, 0, ttbr0);
return aw_write_arm_cp_reg(dev, soc_info, 15, 0, 2, 0, 0, ttbr0);
}
void aw_set_ttbcr(libusb_device_handle *usb, soc_info_t *soc_info,
void aw_set_ttbcr(feldev_handle *dev, soc_info_t *soc_info,
uint32_t ttbcr)
{
return aw_write_arm_cp_reg(usb, soc_info, 15, 0, 2, 0, 2, ttbcr);
return aw_write_arm_cp_reg(dev, soc_info, 15, 0, 2, 0, 2, ttbcr);
}
void aw_set_dacr(libusb_device_handle *usb, soc_info_t *soc_info,
void aw_set_dacr(feldev_handle *dev, soc_info_t *soc_info,
uint32_t dacr)
{
aw_write_arm_cp_reg(usb, soc_info, 15, 0, 3, 0, 0, dacr);
aw_write_arm_cp_reg(dev, soc_info, 15, 0, 3, 0, 0, dacr);
}
void aw_set_sctlr(libusb_device_handle *usb, soc_info_t *soc_info,
void aw_set_sctlr(feldev_handle *dev, soc_info_t *soc_info,
uint32_t sctlr)
{
aw_write_arm_cp_reg(usb, soc_info, 15, 0, 1, 0, 0, sctlr);
aw_write_arm_cp_reg(dev, soc_info, 15, 0, 1, 0, 0, sctlr);
}
/*
......@@ -775,7 +790,7 @@ uint32_t *aw_generate_mmu_translation_table(void)
return tt;
}
uint32_t *aw_backup_and_disable_mmu(libusb_device_handle *usb,
uint32_t *aw_backup_and_disable_mmu(feldev_handle *dev,
soc_info_t *soc_info)
{
uint32_t *tt = NULL;
......@@ -805,7 +820,7 @@ uint32_t *aw_backup_and_disable_mmu(libusb_device_handle *usb,
*/
/* Basically, ignore M/Z/I/V/UNK bits and expect no TEX remap */
sctlr = aw_get_sctlr(usb, soc_info);
sctlr = aw_get_sctlr(dev, soc_info);
if ((sctlr & ~((0x7 << 11) | (1 << 6) | 1)) != 0x00C50038) {
fprintf(stderr, "Unexpected SCTLR (%08X)\n", sctlr);
exit(1);
......@@ -816,19 +831,19 @@ uint32_t *aw_backup_and_disable_mmu(libusb_device_handle *usb,
return NULL;
}
dacr = aw_get_dacr(usb, soc_info);
dacr = aw_get_dacr(dev, soc_info);
if (dacr != 0x55555555) {
fprintf(stderr, "Unexpected DACR (%08X)\n", dacr);
exit(1);
}
ttbcr = aw_get_ttbcr(usb, soc_info);
ttbcr = aw_get_ttbcr(dev, soc_info);
if (ttbcr != 0x00000000) {
fprintf(stderr, "Unexpected TTBCR (%08X)\n", ttbcr);
exit(1);
}
ttbr0 = aw_get_ttbr0(usb, soc_info);
ttbr0 = aw_get_ttbr0(dev, soc_info);
if (ttbr0 & 0x3FFF) {
fprintf(stderr, "Unexpected TTBR0 (%08X)\n", ttbr0);
exit(1);
......@@ -836,7 +851,7 @@ uint32_t *aw_backup_and_disable_mmu(libusb_device_handle *usb,
tt = malloc(16 * 1024);
pr_info("Reading the MMU translation table from 0x%08X\n", ttbr0);
aw_fel_read(usb, ttbr0, tt, 16 * 1024);
aw_fel_read(dev, ttbr0, tt, 16 * 1024);
for (i = 0; i < 4096; i++)
tt[i] = le32toh(tt[i]);
......@@ -853,19 +868,19 @@ uint32_t *aw_backup_and_disable_mmu(libusb_device_handle *usb,
}
pr_info("Disabling I-cache, MMU and branch prediction...");
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(dev, soc_info->scratch_addr);
pr_info(" done.\n");
return tt;
}
void aw_restore_and_enable_mmu(libusb_device_handle *usb,
void aw_restore_and_enable_mmu(feldev_handle *dev,
soc_info_t *soc_info,
uint32_t *tt)
{
uint32_t i;
uint32_t ttbr0 = aw_get_ttbr0(usb, soc_info);
uint32_t ttbr0 = aw_get_ttbr0(dev, soc_info);
uint32_t arm_code[] = {
/* Invalidate I-cache, TLB and BTB */
......@@ -904,11 +919,11 @@ void aw_restore_and_enable_mmu(libusb_device_handle *usb,
pr_info("Writing back the MMU translation table.\n");
for (i = 0; i < 4096; i++)
tt[i] = htole32(tt[i]);
aw_fel_write(usb, tt, ttbr0, 16 * 1024);
aw_fel_write(dev, tt, ttbr0, 16 * 1024);
pr_info("Enabling I-cache, MMU and branch prediction...");
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_execute(dev, soc_info->scratch_addr);
pr_info(" done.\n");
free(tt);
......@@ -920,10 +935,9 @@ void aw_restore_and_enable_mmu(libusb_device_handle *usb,
*/
#define SPL_LEN_LIMIT 0x8000
void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
uint8_t *buf, size_t len)
void aw_fel_write_and_execute_spl(feldev_handle *dev, uint8_t *buf, size_t len)
{
soc_info_t *soc_info = aw_fel_get_soc_info(usb);
soc_info_t *soc_info = aw_fel_get_soc_info(dev);
sram_swap_buffers *swap_buffers;
char header_signature[9] = { 0 };
size_t i, thunk_size;
......@@ -963,13 +977,13 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
if (soc_info->needs_l2en) {
pr_info("Enabling the L2 cache\n");
aw_enable_l2_cache(usb, soc_info);
aw_enable_l2_cache(dev, soc_info);
}
aw_get_stackinfo(usb, soc_info, &sp_irq, &sp);
aw_get_stackinfo(dev, soc_info, &sp_irq, &sp);
pr_info("Stack pointers: sp_irq=0x%08X, sp=0x%08X\n", sp_irq, sp);
tt = aw_backup_and_disable_mmu(usb, soc_info);
tt = aw_backup_and_disable_mmu(dev, soc_info);
if (!tt && soc_info->mmu_tt_addr) {
if (soc_info->mmu_tt_addr & 0x3FFF) {
fprintf(stderr, "SPL: 'mmu_tt_addr' must be 16K aligned\n");
......@@ -987,9 +1001,9 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
* for all the possible virtual addresses (N=0) and that the
* translation table must be aligned at a 16K boundary.
*/
aw_set_dacr(usb, soc_info, 0x55555555);
aw_set_ttbcr(usb, soc_info, 0x00000000);
aw_set_ttbr0(usb, soc_info, soc_info->mmu_tt_addr);
aw_set_dacr(dev, soc_info, 0x55555555);
aw_set_ttbcr(dev, soc_info, 0x00000000);
aw_set_ttbr0(dev, soc_info, soc_info->mmu_tt_addr);
tt = aw_generate_mmu_translation_table();
}
......@@ -1002,7 +1016,7 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
uint32_t tmp = swap_buffers[i].buf1 - cur_addr;
if (tmp > len)
tmp = len;
aw_fel_write(usb, buf, cur_addr, tmp);
aw_fel_write(dev, buf, cur_addr, tmp);
cur_addr += tmp;
buf += tmp;
len -= tmp;
......@@ -1011,7 +1025,7 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
uint32_t tmp = swap_buffers[i].size;
if (tmp > len)
tmp = len;
aw_fel_write(usb, buf, swap_buffers[i].buf2, tmp);
aw_fel_write(dev, buf, swap_buffers[i].buf2, tmp);
cur_addr += tmp;
buf += tmp;
len -= tmp;
......@@ -1030,7 +1044,7 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
/* Write the remaining part of the SPL */
if (len > 0)
aw_fel_write(usb, buf, cur_addr, len);
aw_fel_write(dev, buf, cur_addr, len);
thunk_size = sizeof(fel_to_spl_thunk) + sizeof(soc_info->spl_addr) +
(i + 1) * sizeof(*swap_buffers);
......@@ -1052,8 +1066,8 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
thunk_buf[i] = htole32(thunk_buf[i]);
pr_info("=> Executing the SPL...");
aw_fel_write(usb, thunk_buf, soc_info->thunk_addr, thunk_size);
aw_fel_execute(usb, soc_info->thunk_addr);
aw_fel_write(dev, thunk_buf, soc_info->thunk_addr, thunk_size);
aw_fel_execute(dev, soc_info->thunk_addr);
pr_info(" done.\n");
free(thunk_buf);
......@@ -1062,7 +1076,7 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
usleep(250000);
/* Read back the result and check if everything was fine */
aw_fel_read(usb, soc_info->spl_addr + 4, header_signature, 8);
aw_fel_read(dev, soc_info->spl_addr + 4, header_signature, 8);
if (strcmp(header_signature, "eGON.FEL") != 0) {
fprintf(stderr, "SPL: failure code '%s'\n",
header_signature);
......@@ -1071,7 +1085,7 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
/* re-enable the MMU if it was enabled by BROM */
if (tt != NULL)
aw_restore_and_enable_mmu(usb, soc_info, tt);
aw_restore_and_enable_mmu(dev, soc_info, tt);
}
/*
......@@ -1080,8 +1094,7 @@ void aw_fel_write_and_execute_spl(libusb_device_handle *usb,
* address stored within the image header; and the function preserves the
* U-Boot entry point (offset) and size values.
*/
void aw_fel_write_uboot_image(libusb_device_handle *usb,
uint8_t *buf, size_t len)
void aw_fel_write_uboot_image(feldev_handle *dev, uint8_t *buf, size_t len)
{
if (len <= HEADER_SIZE)
return; /* Insufficient size (no actual data), just bail out */
......@@ -1132,7 +1145,7 @@ void aw_fel_write_uboot_image(libusb_device_handle *usb,
pr_info("Writing image \"%.*s\", %u bytes @ 0x%08X.\n",
IH_NMLEN, buf + HEADER_NAME_OFFSET, data_size, load_addr);
aw_write_buffer(usb, buf + HEADER_SIZE, load_addr, data_size, false);
aw_write_buffer(dev, buf + HEADER_SIZE, load_addr, data_size, false);
/* keep track of U-Boot memory region in global vars */
uboot_entry = load_addr;
......@@ -1142,17 +1155,16 @@ void aw_fel_write_uboot_image(libusb_device_handle *usb,
/*
* This function handles the common part of both "spl" and "uboot" commands.
*/
void aw_fel_process_spl_and_uboot(libusb_device_handle *usb,
const char *filename)
void aw_fel_process_spl_and_uboot(feldev_handle *dev, const char *filename)
{
/* load file into memory buffer */
size_t size;
uint8_t *buf = load_file(filename, &size);
/* write and execute the SPL from the buffer */
aw_fel_write_and_execute_spl(usb, buf, size);
aw_fel_write_and_execute_spl(dev, buf, size);
/* check for optional main U-Boot binary (and transfer it, if applicable) */
if (size > SPL_LEN_LIMIT)
aw_fel_write_uboot_image(usb, buf + SPL_LEN_LIMIT, size - SPL_LEN_LIMIT);
aw_fel_write_uboot_image(dev, buf + SPL_LEN_LIMIT, size - SPL_LEN_LIMIT);
free(buf);
}
......@@ -1166,11 +1178,11 @@ void aw_fel_process_spl_and_uboot(libusb_device_handle *usb,
#define SPL_SIGNATURE "SPL" /* marks "sunxi" header */
#define SPL_MIN_VERSION 1 /* minimum required version */
#define SPL_MAX_VERSION 1 /* maximum supported version */
bool have_sunxi_spl(libusb_device_handle *usb, uint32_t spl_addr)
bool have_sunxi_spl(feldev_handle *dev, uint32_t spl_addr)
{
uint8_t spl_signature[4];
aw_fel_read(usb, spl_addr + 0x14,
aw_fel_read(dev, spl_addr + 0x14,
&spl_signature, sizeof(spl_signature));
if (memcmp(spl_signature, SPL_SIGNATURE, 3) != 0)
......@@ -1198,13 +1210,13 @@ bool have_sunxi_spl(libusb_device_handle *usb, uint32_t spl_addr)
* (see "boot_file_head" in ${U-BOOT}/arch/arm/include/asm/arch-sunxi/spl.h),
* providing the boot script address (DRAM location of boot.scr).
*/
void pass_fel_information(libusb_device_handle *usb,
void pass_fel_information(feldev_handle *dev,
uint32_t script_address, uint32_t uEnv_length)
{
soc_info_t *soc_info = aw_fel_get_soc_info(usb);
soc_info_t *soc_info = aw_fel_get_soc_info(dev);
/* write something _only_ if we have a suitable SPL header */
if (have_sunxi_spl(usb, soc_info->spl_addr)) {
if (have_sunxi_spl(dev, soc_info->spl_addr)) {
pr_info("Passing boot info via sunxi SPL: "
"script address = 0x%08X, uEnv length = %u\n",
script_address, uEnv_length);
......@@ -1212,18 +1224,18 @@ void pass_fel_information(libusb_device_handle *usb,
htole32(script_address),
htole32(uEnv_length)
};
aw_fel_write(usb, transfer,
aw_fel_write(dev, transfer,
soc_info->spl_addr + 0x18, sizeof(transfer));
}
}
static int aw_fel_get_endpoint(libusb_device_handle *usb)
static int aw_fel_get_endpoint(feldev_handle *dev)
{
struct libusb_device *dev = libusb_get_device(usb);
struct libusb_device *usb = libusb_get_device(dev->usb->handle);
struct libusb_config_descriptor *config;
int if_idx, set_idx, ep_idx, ret;
ret = libusb_get_active_config_descriptor(dev, &config);
ret = libusb_get_active_config_descriptor(usb, &config);
if (ret)
return ret;
......@@ -1266,9 +1278,9 @@ static int aw_fel_get_endpoint(libusb_device_handle *usb)
* The code was inspired by
* https://github.com/apritzel/u-boot/commit/fda6bd1bf285c44f30ea15c7e6231bf53c31d4a8
*/
void aw_rmr_request(libusb_device_handle *usb, uint32_t entry_point, bool aarch64)
void aw_rmr_request(feldev_handle *dev, uint32_t entry_point, bool aarch64)
{
soc_info_t *soc_info = aw_fel_get_soc_info(usb);
soc_info_t *soc_info = aw_fel_get_soc_info(dev);
if (!soc_info->rvbar_reg) {
fprintf(stderr, "ERROR: Can't issue RMR request!\n"
"RVBAR is not supported or unknown for your SoC (id=%04X).\n",
......@@ -1298,12 +1310,12 @@ void aw_rmr_request(libusb_device_handle *usb, uint32_t entry_point, bool aarch6
htole32(rmr_mode)
};
/* scratch buffer setup: transfers ARM code and parameter values */
aw_fel_write(usb, arm_code, soc_info->scratch_addr, sizeof(arm_code));
aw_fel_write(dev, arm_code, soc_info->scratch_addr, sizeof(arm_code));
/* execute the thunk code (triggering a warm reset on the SoC) */
pr_info("Store entry point 0x%08X to RVBAR 0x%08X, "
"and request warm reset with RMR mode %u...",
entry_point, soc_info->rvbar_reg, rmr_mode);
aw_fel_execute(usb, soc_info->scratch_addr);
aw_fel_execute(dev, soc_info->scratch_addr);
pr_info(" done.\n");
}
......@@ -1316,7 +1328,7 @@ static bool is_uEnv(void *buffer, size_t size)
}
/* private helper function, gets used for "write*" and "multi*" transfers */
static unsigned int file_upload(libusb_device_handle *handle, size_t count,
static unsigned int file_upload(feldev_handle *dev, size_t count,
size_t argc, char **argv, progress_cb_t callback)
{
if (argc < count * 2) {
......@@ -1338,13 +1350,13 @@ static unsigned int file_upload(libusb_device_handle *handle, size_t count,
void *buf = load_file(argv[i * 2 + 1], &size);
if (size > 0) {
uint32_t offset = strtoul(argv[i * 2], NULL, 0);
aw_write_buffer(handle, buf, offset, size, callback != NULL);
aw_write_buffer(dev, buf, offset, size, callback != NULL);
/* If we transferred a script, try to inform U-Boot about its address. */
if (get_image_type(buf, size) == IH_TYPE_SCRIPT)
pass_fel_information(handle, offset, 0);
pass_fel_information(dev, offset, 0);
if (is_uEnv(buf, size)) /* uEnv-style data */
pass_fel_information(handle, offset, size);
pass_fel_information(dev, offset, size);
}
free(buf);
}
......@@ -1352,19 +1364,29 @@ static unsigned int file_upload(libusb_device_handle *handle, size_t count,
return i; /* return number of files that were processed */
}
/* open libusb handle to desired FEL device */
static libusb_device_handle *open_fel_device(int busnum, int devnum,
/* open handle to desired FEL device */
static feldev_handle *open_fel_device(int busnum, int devnum,
uint16_t vendor_id, uint16_t product_id)
{
libusb_device_handle *result = NULL;
feldev_handle *result = calloc(1, sizeof(feldev_handle));
if (!result) {
fprintf(stderr, "FAILED to allocate feldev_handle memory.\n");
exit(1);
}
result->usb = calloc(1, sizeof(felusb_handle));
if (!result->usb) {
fprintf(stderr, "FAILED to allocate felusb_handle memory.\n");
free(result);
exit(1);
}
if (busnum < 0 || devnum < 0) {
/* With the default values (busnum -1, devnum -1) we don't care
* for a specific USB device; so let libusb open the first
* device that matches VID/PID.
*/
result = libusb_open_device_with_vid_pid(NULL, vendor_id, product_id);
if (!result) {
result->usb->handle = libusb_open_device_with_vid_pid(NULL, vendor_id, product_id);
if (!result->usb->handle) {
switch (errno) {
case EACCES:
fprintf(stderr, "ERROR: You don't have permission to access Allwinner USB FEL device\n");
......@@ -1401,7 +1423,7 @@ static libusb_device_handle *open_fel_device(int busnum, int devnum,
exit(1);
}
/* open handle to this specific device (incrementing its refcount) */
rc = libusb_open(list[i], &result);
rc = libusb_open(list[i], &result->usb->handle);
if (rc != 0)
usb_error(rc, "libusb_open()", 1);
break;
......@@ -1417,11 +1439,17 @@ static libusb_device_handle *open_fel_device(int busnum, int devnum,
return result;
}
void feldev_close(feldev_handle *dev)
{
libusb_close(dev->usb->handle);
free(dev->usb); /* release memory allocated for felusb_handle struct */
}
int main(int argc, char **argv)
{
bool uboot_autostart = false; /* flag for "uboot" command = U-Boot autostart */
bool pflag_active = false; /* -p switch, causing "write" to output progress */
libusb_device_handle *handle;
feldev_handle *handle;
int busnum = -1, devnum = -1;
#if defined(__linux__)
int iface_detached = -1;
......@@ -1499,12 +1527,12 @@ int main(int argc, char **argv)
assert(rc == 0);
handle = open_fel_device(busnum, devnum, AW_USB_VENDOR_ID, AW_USB_PRODUCT_ID);
assert(handle != NULL);
rc = libusb_claim_interface(handle, 0);
rc = libusb_claim_interface(handle->usb->handle, 0);
#if defined(__linux__)
if (rc != LIBUSB_SUCCESS) {
libusb_detach_kernel_driver(handle, 0);
libusb_detach_kernel_driver(handle->usb->handle, 0);
iface_detached = 0;
rc = libusb_claim_interface(handle, 0);
rc = libusb_claim_interface(handle->usb->handle, 0);
}
#endif
assert(rc == 0);
......@@ -1608,12 +1636,13 @@ int main(int argc, char **argv)
aw_fel_execute(handle, uboot_entry);
}
libusb_release_interface(handle, 0);
libusb_release_interface(handle->usb->handle, 0);
#if defined(__linux__)
if (iface_detached >= 0)
libusb_attach_kernel_driver(handle, iface_detached);
libusb_attach_kernel_driver(handle->usb->handle, iface_detached);
#endif
libusb_close(handle);
feldev_close(handle);
free(handle);
libusb_exit(NULL);
return 0;
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment