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Hoernchen gerrit-no-reply at lists.osmocom.orgHoernchen has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-asf4-dfu/+/17024 )
Change subject: usb serial number descriptor
......................................................................
usb serial number descriptor
Change-Id: I4a23682cee0849c788e5f6c611df4ed1f1cac3da
---
M config/usbd_config.h
M usb_dfu_main.c
M usb_start.c
3 files changed, 116 insertions(+), 3 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-asf4-dfu refs/changes/24/17024/1
diff --git a/config/usbd_config.h b/config/usbd_config.h
index f82934c..7ae1b05 100644
--- a/config/usbd_config.h
+++ b/config/usbd_config.h
@@ -163,7 +163,7 @@
// <e> Enable string descriptor of iSerialNum
// <id> usb_dfud_iserialnum_en
#ifndef CONF_USB_DFUD_ISERIALNUM_EN
-#define CONF_USB_DFUD_ISERIALNUM_EN 0
+#define CONF_USB_DFUD_ISERIALNUM_EN 1
#endif
#ifndef CONF_USB_DFUD_ISERIALNUM
@@ -175,11 +175,11 @@
// <s> Unicode string of iSerialNum
// <id> usb_dfud_iserialnum_str
#ifndef CONF_USB_DFUD_ISERIALNUM_STR
-#define CONF_USB_DFUD_ISERIALNUM_STR "123456789ABCDEF"
+#define CONF_USB_DFUD_ISERIALNUM_STR "dummy"
#endif
#ifndef CONF_USB_DFUD_ISERIALNUM_STR_DESC
-#define CONF_USB_DFUD_ISERIALNUM_STR_DESC
+#define CONF_USB_DFUD_ISERIALNUM_STR_DESC 12, 0x03, 'd', 0x00, 'u', 0x00, 'm', 0x00, 'm', 0x00, 'y', 0x00,
#endif
// </e>
diff --git a/usb_dfu_main.c b/usb_dfu_main.c
index 19fe437..857230d 100644
--- a/usb_dfu_main.c
+++ b/usb_dfu_main.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <errno.h>
#include "atmel_start.h"
#include "atmel_start_pins.h"
@@ -85,10 +86,53 @@
SCB->VTOR = ((uint32_t) application_start_address & SCB_VTOR_TBLOFF_Msk); // re-base the vector table base address
asm("bx %0"::"r"(*(application_start_address + 1))); // jump to application Reset Handler in the application */
}
+#if defined(SYSMOOCTSIM)
+/* Section 9.6 of SAMD5x/E5x Family Data Sheet */
+static int get_chip_unique_serial(uint8_t *out, size_t len)
+{
+ uint32_t *out32 = (uint32_t *)out;
+ if (len < 16)
+ return -EINVAL;
+
+ out32[0] = *(uint32_t *)0x008061fc;
+ out32[1] = *(uint32_t *)0x00806010;
+ out32[2] = *(uint32_t *)0x00806014;
+ out32[3] = *(uint32_t *)0x00806018;
+
+ return 0;
+}
+
+/* same as get_chip_unique_serial but in hex-string format */
+static int get_chip_unique_serial_str(char *out, size_t len)
+{
+ uint8_t buf[16];
+ int rc;
+
+ if (len < 16*2 + 1)
+ return -EINVAL;
+
+ rc = get_chip_unique_serial(buf, sizeof(buf));
+ if (rc < 0)
+ return rc;
+ for(int i = 0; i < sizeof(buf); i++)
+ sprintf(&out[i*2], "%02x", buf[i]);
+ return 0;
+}
+char sernr_buf[16*2+1];
+//unicode for descriptor
+uint8_t sernr_buf_descr[1+1+16*2*2];
+#endif
int main(void)
{
atmel_start_init(); // initialise system
+#if defined(SYSMOOCTSIM)
+ get_chip_unique_serial_str(sernr_buf, sizeof(sernr_buf));
+ sernr_buf_descr[0] = sizeof(sernr_buf_descr);
+ sernr_buf_descr[1] = 0x3;
+ for(int i= 2; i < sizeof(sernr_buf_descr); i+=2)
+ sernr_buf_descr[i] = sernr_buf[i >> 1];
+#endif
if (!check_bootloader()) { // check bootloader
// blink the LED to tell the user we don't know where the application starts
while (true) {
diff --git a/usb_start.c b/usb_start.c
index 93059ad..24cde4f 100644
--- a/usb_start.c
+++ b/usb_start.c
@@ -17,6 +17,7 @@
*/
#include "atmel_start.h"
#include "usb_start.h"
+#include "config/usbd_config.h"
#if CONF_USBD_HS_SP
static uint8_t single_desc_bytes[] = {
@@ -45,6 +46,71 @@
/** Ctrl endpoint buffer */
static uint8_t ctrl_buffer[64];
+
+
+/* transmit given string descriptor */
+static bool send_str_desc(uint8_t ep, const struct usb_req *req, enum usb_ctrl_stage stage,
+ const uint8_t *desc)
+{
+ uint16_t len_req = LE16(req->wLength);
+ uint16_t len_desc = desc[0];
+ uint16_t len_tx;
+ bool need_zlp = !(len_req & (CONF_USB_DFUD_BMAXPKSZ0 - 1));
+
+ if (len_req <= len_desc) {
+ need_zlp = false;
+ len_tx = len_req;
+ } else {
+ len_tx = len_desc;
+ }
+
+ if (ERR_NONE != usbdc_xfer(ep, (uint8_t *)desc, len_tx, need_zlp)) {
+ return true;
+ }
+
+ return false;
+}
+
+extern uint8_t sernr_buf_descr[];
+/* call-back for every control EP request */
+static int32_t string_req_cb(uint8_t ep, struct usb_req *req, enum usb_ctrl_stage stage)
+{
+ uint8_t index, type;
+
+ if (stage != USB_SETUP_STAGE)
+ return ERR_NOT_FOUND;
+
+ if ((req->bmRequestType & (USB_REQT_TYPE_MASK | USB_REQT_DIR_IN)) !=
+ (USB_REQT_TYPE_STANDARD | USB_REQT_DIR_IN))
+ return ERR_NOT_FOUND;
+
+ /* abort if it's not a GET DESCRIPTOR request */
+ if (req->bRequest != USB_REQ_GET_DESC)
+ return ERR_NOT_FOUND;
+
+ /* abort if it's not about a string descriptor */
+ type = req->wValue >> 8;
+ if (type != USB_DT_STRING)
+ return ERR_NOT_FOUND;
+#if 0
+ printf("ep=%02x, bmReqT=%04x, bReq=%02x, wValue=%04x, stage=%d\r\n",
+ ep, req->bmRequestType, req->bRequest, req->wValue, stage);
+#endif
+ /* abort if it's not a standard GET request */
+ index = req->wValue & 0x00FF;
+ switch (index) {
+ case CONF_USB_DFUD_ISERIALNUM:
+ return send_str_desc(ep, req, stage, sernr_buf_descr);
+ default:
+ return ERR_NOT_FOUND;
+ }
+}
+
+
+static struct usbdc_handler string_req_h = {NULL, (FUNC_PTR)string_req_cb};
+
+
+
/**
* \brief USB DFU Init
*/
@@ -52,6 +118,9 @@
{
usbdc_init(ctrl_buffer);
dfudf_init();
+#if defined(SYSMOOCTSIM)
+ usbdc_register_handler(USBDC_HDL_REQ, &string_req_h);
+#endif
usbdc_start(single_desc);
usbdc_attach();
--
To view, visit https://gerrit.osmocom.org/c/osmo-asf4-dfu/+/17024
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Gerrit-Project: osmo-asf4-dfu
Gerrit-Branch: master
Gerrit-Change-Id: I4a23682cee0849c788e5f6c611df4ed1f1cac3da
Gerrit-Change-Number: 17024
Gerrit-PatchSet: 1
Gerrit-Owner: Hoernchen <ewild at sysmocom.de>
Gerrit-MessageType: newchange
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