mirror of https://gitee.com/openkylin/linux.git
USB: io_ti: Move download and boot mode code out of download_fw
Separate the download and boot mode code from download_fw() into two new helper functions: do_download_mode() and do_boot_mode(). Signed-off-by: Peter E. Berger <pberger@brimson.com> Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Peter E. Berger
Johan Hovold
parent
ef9324b2bd
commit
bebf1f185c
|
|
@ -223,6 +223,11 @@ static void edge_set_termios(struct tty_struct *tty,
|
|||
struct usb_serial_port *port, struct ktermios *old_termios);
|
||||
static void edge_send(struct usb_serial_port *port, struct tty_struct *tty);
|
||||
|
||||
static int do_download_mode(struct edgeport_serial *serial,
|
||||
const struct firmware *fw);
|
||||
static int do_boot_mode(struct edgeport_serial *serial,
|
||||
const struct firmware *fw);
|
||||
|
||||
/* sysfs attributes */
|
||||
static int edge_create_sysfs_attrs(struct usb_serial_port *port);
|
||||
static int edge_remove_sysfs_attrs(struct usb_serial_port *port);
|
||||
|
|
@ -991,11 +996,7 @@ static int download_fw(struct edgeport_serial *serial,
|
|||
{
|
||||
struct device *dev = &serial->serial->interface->dev;
|
||||
int status = 0;
|
||||
int start_address;
|
||||
struct edge_ti_manuf_descriptor *ti_manuf_desc;
|
||||
struct usb_interface_descriptor *interface;
|
||||
int download_cur_ver;
|
||||
int download_new_ver;
|
||||
struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
|
||||
|
||||
if (check_fw_sanity(serial, fw))
|
||||
|
|
@ -1029,190 +1030,207 @@ static int download_fw(struct edgeport_serial *serial,
|
|||
* if we have more than one endpoint we are definitely in download
|
||||
* mode
|
||||
*/
|
||||
if (interface->bNumEndpoints > 1)
|
||||
if (interface->bNumEndpoints > 1) {
|
||||
serial->product_info.TiMode = TI_MODE_DOWNLOAD;
|
||||
else
|
||||
/* Otherwise we will remain in configuring mode */
|
||||
serial->product_info.TiMode = TI_MODE_CONFIGURING;
|
||||
return do_download_mode(serial, fw);
|
||||
}
|
||||
|
||||
/********************************************************************/
|
||||
/* Download Mode */
|
||||
/********************************************************************/
|
||||
if (serial->product_info.TiMode == TI_MODE_DOWNLOAD) {
|
||||
struct ti_i2c_desc *rom_desc;
|
||||
/* Otherwise we will remain in configuring mode */
|
||||
serial->product_info.TiMode = TI_MODE_CONFIGURING;
|
||||
return do_boot_mode(serial, fw);
|
||||
|
||||
dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
|
||||
}
|
||||
|
||||
status = check_i2c_image(serial);
|
||||
if (status) {
|
||||
dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
|
||||
return status;
|
||||
static int do_download_mode(struct edgeport_serial *serial,
|
||||
const struct firmware *fw)
|
||||
{
|
||||
struct device *dev = &serial->serial->interface->dev;
|
||||
int status = 0;
|
||||
int start_address;
|
||||
struct edge_ti_manuf_descriptor *ti_manuf_desc;
|
||||
int download_cur_ver;
|
||||
int download_new_ver;
|
||||
struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
|
||||
struct ti_i2c_desc *rom_desc;
|
||||
|
||||
dev_dbg(dev, "%s - RUNNING IN DOWNLOAD MODE\n", __func__);
|
||||
|
||||
status = check_i2c_image(serial);
|
||||
if (status) {
|
||||
dev_dbg(dev, "%s - DOWNLOAD MODE -- BAD I2C\n", __func__);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* Validate Hardware version number
|
||||
* Read Manufacturing Descriptor from TI Based Edgeport
|
||||
*/
|
||||
ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
|
||||
if (!ti_manuf_desc)
|
||||
return -ENOMEM;
|
||||
|
||||
status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
|
||||
if (status) {
|
||||
kfree(ti_manuf_desc);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* Check version number of ION descriptor */
|
||||
if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
|
||||
dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
|
||||
__func__, ti_cpu_rev(ti_manuf_desc));
|
||||
kfree(ti_manuf_desc);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
|
||||
if (!rom_desc) {
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Search for type 2 record (firmware record) */
|
||||
start_address = get_descriptor_addr(serial,
|
||||
I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
|
||||
if (start_address != 0) {
|
||||
struct ti_i2c_firmware_rec *firmware_version;
|
||||
u8 *record;
|
||||
|
||||
dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n",
|
||||
__func__);
|
||||
|
||||
firmware_version = kmalloc(sizeof(*firmware_version),
|
||||
GFP_KERNEL);
|
||||
if (!firmware_version) {
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Validate Hardware version number
|
||||
* Read Manufacturing Descriptor from TI Based Edgeport
|
||||
/* Validate version number
|
||||
* Read the descriptor data
|
||||
*/
|
||||
ti_manuf_desc = kmalloc(sizeof(*ti_manuf_desc), GFP_KERNEL);
|
||||
if (!ti_manuf_desc)
|
||||
return -ENOMEM;
|
||||
|
||||
status = get_manuf_info(serial, (__u8 *)ti_manuf_desc);
|
||||
status = read_rom(serial, start_address +
|
||||
sizeof(struct ti_i2c_desc),
|
||||
sizeof(struct ti_i2c_firmware_rec),
|
||||
(__u8 *)firmware_version);
|
||||
if (status) {
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* Check version number of ION descriptor */
|
||||
if (!ignore_cpu_rev && ti_cpu_rev(ti_manuf_desc) < 2) {
|
||||
dev_dbg(dev, "%s - Wrong CPU Rev %d (Must be 2)\n",
|
||||
__func__, ti_cpu_rev(ti_manuf_desc));
|
||||
kfree(ti_manuf_desc);
|
||||
return -EINVAL;
|
||||
}
|
||||
/* Check version number of download with current
|
||||
* version in I2c */
|
||||
download_cur_ver = (firmware_version->Ver_Major << 8) +
|
||||
(firmware_version->Ver_Minor);
|
||||
download_new_ver = (fw_hdr->major_version << 8) +
|
||||
(fw_hdr->minor_version);
|
||||
|
||||
rom_desc = kmalloc(sizeof(*rom_desc), GFP_KERNEL);
|
||||
if (!rom_desc) {
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENOMEM;
|
||||
}
|
||||
dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
|
||||
__func__, firmware_version->Ver_Major,
|
||||
firmware_version->Ver_Minor,
|
||||
fw_hdr->major_version, fw_hdr->minor_version);
|
||||
|
||||
/* Search for type 2 record (firmware record) */
|
||||
start_address = get_descriptor_addr(serial,
|
||||
I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc);
|
||||
if (start_address != 0) {
|
||||
struct ti_i2c_firmware_rec *firmware_version;
|
||||
u8 *record;
|
||||
/* Check if we have an old version in the I2C and
|
||||
* update if necessary */
|
||||
if (download_cur_ver < download_new_ver) {
|
||||
dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
|
||||
__func__,
|
||||
firmware_version->Ver_Major,
|
||||
firmware_version->Ver_Minor,
|
||||
fw_hdr->major_version,
|
||||
fw_hdr->minor_version);
|
||||
|
||||
dev_dbg(dev, "%s - Found Type FIRMWARE (Type 2) record\n", __func__);
|
||||
|
||||
firmware_version = kmalloc(sizeof(*firmware_version),
|
||||
GFP_KERNEL);
|
||||
if (!firmware_version) {
|
||||
record = kmalloc(1, GFP_KERNEL);
|
||||
if (!record) {
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Validate version number
|
||||
* Read the descriptor data
|
||||
/*
|
||||
* In order to update the I2C firmware we must
|
||||
* change the type 2 record to type 0xF2. This
|
||||
* will force the UMP to come up in Boot Mode.
|
||||
* Then while in boot mode, the driver will
|
||||
* download the latest firmware (padded to
|
||||
* 15.5k) into the UMP ram. Finally when the
|
||||
* device comes back up in download mode the
|
||||
* driver will cause the new firmware to be
|
||||
* copied from the UMP Ram to I2C and the
|
||||
* firmware will update the record type from
|
||||
* 0xf2 to 0x02.
|
||||
*/
|
||||
status = read_rom(serial, start_address +
|
||||
sizeof(struct ti_i2c_desc),
|
||||
sizeof(struct ti_i2c_firmware_rec),
|
||||
(__u8 *)firmware_version);
|
||||
*record = I2C_DESC_TYPE_FIRMWARE_BLANK;
|
||||
|
||||
/* Change the I2C Firmware record type to
|
||||
* 0xf2 to trigger an update */
|
||||
status = write_rom(serial, start_address,
|
||||
sizeof(*record), record);
|
||||
if (status) {
|
||||
kfree(record);
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* Check version number of download with current
|
||||
version in I2c */
|
||||
download_cur_ver = (firmware_version->Ver_Major << 8) +
|
||||
(firmware_version->Ver_Minor);
|
||||
download_new_ver = (fw_hdr->major_version << 8) +
|
||||
(fw_hdr->minor_version);
|
||||
/* verify the write -- must do this in order
|
||||
* for write to complete before we do the
|
||||
* hardware reset
|
||||
*/
|
||||
status = read_rom(serial,
|
||||
start_address,
|
||||
sizeof(*record),
|
||||
record);
|
||||
if (status) {
|
||||
kfree(record);
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return status;
|
||||
}
|
||||
|
||||
dev_dbg(dev, "%s - >> FW Versions Device %d.%d Driver %d.%d\n",
|
||||
__func__, firmware_version->Ver_Major,
|
||||
firmware_version->Ver_Minor,
|
||||
fw_hdr->major_version, fw_hdr->minor_version);
|
||||
|
||||
/* Check if we have an old version in the I2C and
|
||||
update if necessary */
|
||||
if (download_cur_ver < download_new_ver) {
|
||||
dev_dbg(dev, "%s - Update I2C dld from %d.%d to %d.%d\n",
|
||||
__func__,
|
||||
firmware_version->Ver_Major,
|
||||
firmware_version->Ver_Minor,
|
||||
fw_hdr->major_version,
|
||||
fw_hdr->minor_version);
|
||||
|
||||
record = kmalloc(1, GFP_KERNEL);
|
||||
if (!record) {
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENOMEM;
|
||||
}
|
||||
/* In order to update the I2C firmware we must
|
||||
* change the type 2 record to type 0xF2. This
|
||||
* will force the UMP to come up in Boot Mode.
|
||||
* Then while in boot mode, the driver will
|
||||
* download the latest firmware (padded to
|
||||
* 15.5k) into the UMP ram. Finally when the
|
||||
* device comes back up in download mode the
|
||||
* driver will cause the new firmware to be
|
||||
* copied from the UMP Ram to I2C and the
|
||||
* firmware will update the record type from
|
||||
* 0xf2 to 0x02.
|
||||
*/
|
||||
*record = I2C_DESC_TYPE_FIRMWARE_BLANK;
|
||||
|
||||
/* Change the I2C Firmware record type to
|
||||
0xf2 to trigger an update */
|
||||
status = write_rom(serial, start_address,
|
||||
sizeof(*record), record);
|
||||
if (status) {
|
||||
kfree(record);
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* verify the write -- must do this in order
|
||||
* for write to complete before we do the
|
||||
* hardware reset
|
||||
*/
|
||||
status = read_rom(serial,
|
||||
start_address,
|
||||
sizeof(*record),
|
||||
record);
|
||||
if (status) {
|
||||
kfree(record);
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return status;
|
||||
}
|
||||
|
||||
if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
|
||||
dev_err(dev, "%s - error resetting device\n", __func__);
|
||||
kfree(record);
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
|
||||
|
||||
/* Reset UMP -- Back to BOOT MODE */
|
||||
status = ti_vsend_sync(serial->serial->dev,
|
||||
UMPC_HARDWARE_RESET,
|
||||
0, 0, NULL, 0,
|
||||
TI_VSEND_TIMEOUT_DEFAULT);
|
||||
|
||||
dev_dbg(dev, "%s - HARDWARE RESET return %d\n", __func__, status);
|
||||
|
||||
/* return an error on purpose. */
|
||||
if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) {
|
||||
dev_err(dev, "%s - error resetting device\n",
|
||||
__func__);
|
||||
kfree(record);
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENODEV;
|
||||
} else {
|
||||
/* Same or newer fw version is already loaded */
|
||||
serial->fw_version = download_cur_ver;
|
||||
}
|
||||
|
||||
dev_dbg(dev, "%s - HARDWARE RESET\n", __func__);
|
||||
|
||||
/* Reset UMP -- Back to BOOT MODE */
|
||||
status = ti_vsend_sync(serial->serial->dev,
|
||||
UMPC_HARDWARE_RESET,
|
||||
0, 0, NULL, 0,
|
||||
TI_VSEND_TIMEOUT_DEFAULT);
|
||||
|
||||
dev_dbg(dev, "%s - HARDWARE RESET return %d\n",
|
||||
__func__, status);
|
||||
|
||||
/* return an error on purpose. */
|
||||
kfree(record);
|
||||
kfree(firmware_version);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return -ENODEV;
|
||||
}
|
||||
/* Search for type 0xF2 record (firmware blank record) */
|
||||
else if ((start_address = get_descriptor_addr(serial, I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc)) != 0) {
|
||||
/* Same or newer fw version is already loaded */
|
||||
serial->fw_version = download_cur_ver;
|
||||
kfree(firmware_version);
|
||||
}
|
||||
/* Search for type 0xF2 record (firmware blank record) */
|
||||
else {
|
||||
start_address = get_descriptor_addr(serial,
|
||||
I2C_DESC_TYPE_FIRMWARE_BLANK, rom_desc);
|
||||
if (start_address != 0) {
|
||||
#define HEADER_SIZE (sizeof(struct ti_i2c_desc) + \
|
||||
sizeof(struct ti_i2c_firmware_rec))
|
||||
sizeof(struct ti_i2c_firmware_rec))
|
||||
__u8 *header;
|
||||
__u8 *vheader;
|
||||
|
||||
|
|
@ -1231,7 +1249,8 @@ static int download_fw(struct edgeport_serial *serial,
|
|||
return -ENOMEM;
|
||||
}
|
||||
|
||||
dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n", __func__);
|
||||
dev_dbg(dev, "%s - Found Type BLANK FIRMWARE (Type F2) record\n",
|
||||
__func__);
|
||||
|
||||
/*
|
||||
* In order to update the I2C firmware we must change
|
||||
|
|
@ -1254,7 +1273,7 @@ static int download_fw(struct edgeport_serial *serial,
|
|||
}
|
||||
|
||||
/* Update I2C with type 0xf2 record with correct
|
||||
size and checksum */
|
||||
* size and checksum */
|
||||
status = write_rom(serial,
|
||||
start_address,
|
||||
HEADER_SIZE,
|
||||
|
|
@ -1268,12 +1287,13 @@ static int download_fw(struct edgeport_serial *serial,
|
|||
}
|
||||
|
||||
/* verify the write -- must do this in order for
|
||||
write to complete before we do the hardware reset */
|
||||
* write to complete before we do the hardware reset */
|
||||
status = read_rom(serial, start_address,
|
||||
HEADER_SIZE, vheader);
|
||||
|
||||
if (status) {
|
||||
dev_dbg(dev, "%s - can't read header back\n", __func__);
|
||||
dev_dbg(dev, "%s - can't read header back\n",
|
||||
__func__);
|
||||
kfree(vheader);
|
||||
kfree(header);
|
||||
kfree(rom_desc);
|
||||
|
|
@ -1281,7 +1301,8 @@ static int download_fw(struct edgeport_serial *serial,
|
|||
return status;
|
||||
}
|
||||
if (memcmp(vheader, header, HEADER_SIZE)) {
|
||||
dev_dbg(dev, "%s - write download record failed\n", __func__);
|
||||
dev_dbg(dev, "%s - write download record failed\n",
|
||||
__func__);
|
||||
kfree(vheader);
|
||||
kfree(header);
|
||||
kfree(rom_desc);
|
||||
|
|
@ -1300,26 +1321,33 @@ static int download_fw(struct edgeport_serial *serial,
|
|||
0, 0, NULL, 0,
|
||||
TI_VSEND_TIMEOUT_FW_DOWNLOAD);
|
||||
|
||||
dev_dbg(dev, "%s - Update complete 0x%x\n", __func__, status);
|
||||
dev_dbg(dev, "%s - Update complete 0x%x\n", __func__,
|
||||
status);
|
||||
if (status) {
|
||||
dev_err(dev,
|
||||
"%s - UMPC_COPY_DNLD_TO_I2C failed\n",
|
||||
__func__);
|
||||
__func__);
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return status;
|
||||
}
|
||||
}
|
||||
|
||||
// The device is running the download code
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/********************************************************************/
|
||||
/* Boot Mode */
|
||||
/********************************************************************/
|
||||
/* The device is running the download code */
|
||||
kfree(rom_desc);
|
||||
kfree(ti_manuf_desc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int do_boot_mode(struct edgeport_serial *serial,
|
||||
const struct firmware *fw)
|
||||
{
|
||||
struct device *dev = &serial->serial->interface->dev;
|
||||
int status = 0;
|
||||
struct edge_ti_manuf_descriptor *ti_manuf_desc;
|
||||
struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
|
||||
|
||||
dev_dbg(dev, "%s - RUNNING IN BOOT MODE\n", __func__);
|
||||
|
||||
/* Configure the TI device so we can use the BULK pipes for download */
|
||||
|
|
|
|||
Loading…
Reference in New Issue