[U-Boot] [RFC PATCH 09/14] dfu: add callback for flush and initiated operation

[Lukasz Majewski]

Hi Patrick,

> Add weak callback to allow board specific behavior
> - flush
> - initiated
> 
> This patch prepare usage of DFU back end for communication with
> STM32CubeProgrammer on stm32mp1 platform with stm32prog command.

Would the stm32prog need to modify the environment variables ?
For example to update the "VERSION" or any other one?


> 
> Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
> ---
> 
>  drivers/dfu/dfu.c | 19 +++++++++++++++++++
>  include/dfu.h     |  2 ++
>  2 files changed, 21 insertions(+)
> 
> diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
> index a960b6e..e642b09 100644
> --- a/drivers/dfu/dfu.c
> +++ b/drivers/dfu/dfu.c
> @@ -22,6 +22,22 @@ static int alt_num_cnt;
>  static struct hash_algo *dfu_hash_algo;
>  
>  /*
> + * The purpose of the dfu_flush_callback() function is to
> + * provide callback for dfu user
> + */
> +__weak void dfu_flush_callback(struct dfu_entity *dfu)
> +{
> +}
> +
> +/*
> + * The purpose of the dfu_flush_callback() function is to
> + * provide callback for dfu user
> + */
> +__weak void dfu_initiated_callback(struct dfu_entity *dfu)
> +{
> +}
> +
> +/*
>   * The purpose of the dfu_usb_get_reset() function is to
>   * provide information if after USB_DETACH request
>   * being sent the dfu-util performed reset of USB
> @@ -262,6 +278,7 @@ int dfu_transaction_initiate(struct dfu_entity
> *dfu, bool read) }
>  
>  	dfu->inited = 1;
> +	dfu_initiated_callback(dfu);
>  
>  	return 0;
>  }
> @@ -281,6 +298,8 @@ int dfu_flush(struct dfu_entity *dfu, void *buf,
> int size, int blk_seq_num) printf("\nDFU complete %s: 0x%08x\n",
> dfu_hash_algo->name, dfu->crc);
>  
> +	dfu_flush_callback(dfu);
> +
>  	dfu_transaction_cleanup(dfu);
>  
>  	return ret;
> diff --git a/include/dfu.h b/include/dfu.h
> index 4de7d35..5d85cc3 100644
> --- a/include/dfu.h
> +++ b/include/dfu.h
> @@ -182,6 +182,8 @@ bool dfu_usb_get_reset(void);
>  int dfu_read(struct dfu_entity *de, void *buf, int size, int
> blk_seq_num); int dfu_write(struct dfu_entity *de, void *buf, int
> size, int blk_seq_num); int dfu_flush(struct dfu_entity *de, void
> *buf, int size, int blk_seq_num); +void dfu_flush_callback(struct
> dfu_entity *dfu); +void dfu_initiated_callback(struct dfu_entity
> *dfu); 
>  /*
>   * dfu_defer_flush - pointer to store dfu_entity for deferred
> flashing.




Best regards,

Lukasz Majewski

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