How OEM can set own PID for dload mode in qualcomm msm7x27/7x30?

Many OEM wants to use their own download tool rather than QPST, and does not want to show Qualcomm PID to Host PC in download mode.



In AMSS mode, the way to change PID, VID is in solution # 5814(How to change vid, pid and some string in descriptor)

Here is the simple way to set OEM PID in dload mode.



So, what OEM can do is calling hsu_al_dload_init_ex() function with setting boolean variable, use_amss_product_id as false, which means using different product ID compared to the one in AMSS code. This hsu_al_dload_init_ex() function calls hsu_al_dload_armprog_start_stack_ex(), and checking the boolean variable, and assign PID to HSU_PRODUCT_ID_NON_AMSS which is defined in hsu_conf_sel_comp_utils.h file


Here is the code change that you can do.

1. Modify hsu_al_dload.c file like this:
From:
void hsu_al_dload_init(void)
{
hsu_al_dload_init_ex(TRUE);
}
To:
void hsu_al_dload_init(void)
{
hsu_al_dload_init_ex(FALSE);
}

2. Modify hsu_conf_sel_comp_utils.h file:
From:
/*
* A product ID used for download into RAM in the U2 target.
* This is intended to ensure that the device gets a different
* port number when performing download into RAM than when running
* AMSS.
* This product ID always uses the single interface configuration.
*/
#define HSU_PRODUCT_ID_NON_AMSS 0x9008

To
#define HSU_PRODUCT_ID_NON_AMSS 0x1234 //Customer defined PID.