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stm32mp: stm32prog: handle interruption during the first enumeration

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When an interruption is received during the first USB enumeration
used to received the FlashLayout, with handle ctrl-c, the second
enumeration is not needed and the result for stm32prog_usb_loop
is false (reset is not needed).

This patch avoids the need of a second ctrl to interrupt the command
stm32prog.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2022-03-28 19:25:31 +02:00 committed by Patrice Chotard
parent 2a4fe0ee48
commit 7f1121a85a
1 changed files with 5 additions and 2 deletions
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7
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_usb.c
View file

@ -206,9 +206,12 @@ bool stm32prog_usb_loop(struct stm32prog_data *data, int dev)
g_dnl_set_product(product);
if (stm32prog_data->phase == PHASE_FLASHLAYOUT) {
/* forget any previous Control C */
clear_ctrlc();
ret = run_usb_dnl_gadget(dev, "usb_dnl_dfu");
if (ret || stm32prog_data->phase != PHASE_FLASHLAYOUT)
return ret;
/* DFU reset received, no error or CtrlC */
if (ret || stm32prog_data->phase != PHASE_FLASHLAYOUT || had_ctrlc())
return ret; /* true = reset on DFU error */
/* prepare the second enumeration with the FlashLayout */
stm32prog_dfu_init(data);
}