Commit d31c1002 authored by Manjunath Hadli's avatar Manjunath Hadli Committed by Mauro Carvalho Chehab
Browse files

[media] davinci/vpss: add helper functions for setting hw params 



Add vpss helper functions to be used in the main driver for setting
hardware parameters.

Add interface functions to set sync polarity, interrupt completion and
pageframe size in vpss to be used by the main driver.

Signed-off-by: default avatarManjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: default avatarLad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 3de93941

drivers/media/platform/davinci/vpss.c

+32 −0
Original line number Diff line number Diff line
@@ -111,6 +111,12 @@ struct vpss_hw_ops { 
	void (*select_ccdc_source)(enum vpss_ccdc_source_sel src_sel);

	/* clear wbl overflow bit */

	int (*clear_wbl_overflow)(enum vpss_wbl_sel wbl_sel);

	/* set sync polarity */

	void (*set_sync_pol)(struct vpss_sync_pol);

	/* set the PG_FRAME_SIZE register*/

	void (*set_pg_frame_size)(struct vpss_pg_frame_size);

	/* check and clear interrupt if occured */

	int (*dma_complete_interrupt)(void);

};



/* vpss configuration */
@@ -175,6 +181,14 @@ static void dm355_select_ccdc_source(enum vpss_ccdc_source_sel src_sel) 
	bl_regw(src_sel << VPSS_HSSISEL_SHIFT, DM355_VPSSBL_CCDCMUX);

}



int vpss_dma_complete_interrupt(void)

{

	if (!oper_cfg.hw_ops.dma_complete_interrupt)

		return 2;

	return oper_cfg.hw_ops.dma_complete_interrupt();

}

EXPORT_SYMBOL(vpss_dma_complete_interrupt);



int vpss_select_ccdc_source(enum vpss_ccdc_source_sel src_sel)

{

	if (!oper_cfg.hw_ops.select_ccdc_source)
@@ -200,6 +214,15 @@ static int dm644x_clear_wbl_overflow(enum vpss_wbl_sel wbl_sel) 
	return 0;

}



void vpss_set_sync_pol(struct vpss_sync_pol sync)

{

	if (!oper_cfg.hw_ops.set_sync_pol)

		return;



	oper_cfg.hw_ops.set_sync_pol(sync);

}

EXPORT_SYMBOL(vpss_set_sync_pol);



int vpss_clear_wbl_overflow(enum vpss_wbl_sel wbl_sel)

{

	if (!oper_cfg.hw_ops.clear_wbl_overflow)
@@ -365,6 +388,15 @@ void dm365_vpss_set_sync_pol(struct vpss_sync_pol sync) 
}

EXPORT_SYMBOL(dm365_vpss_set_sync_pol);



void vpss_set_pg_frame_size(struct vpss_pg_frame_size frame_size)

{

	if (!oper_cfg.hw_ops.set_pg_frame_size)

		return;



	oper_cfg.hw_ops.set_pg_frame_size(frame_size);

}

EXPORT_SYMBOL(vpss_set_pg_frame_size);



void dm365_vpss_set_pg_frame_size(struct vpss_pg_frame_size frame_size)

{

	int current_reg = ((frame_size.hlpfr >> 1) - 1) << 16;

include/media/davinci/vpss.h

+16 −0
Original line number Diff line number Diff line
@@ -105,4 +105,20 @@ enum vpss_wbl_sel { 
};

/* clear wbl overflow flag for DM6446 */

int vpss_clear_wbl_overflow(enum vpss_wbl_sel wbl_sel);



/* set sync polarity*/

void vpss_set_sync_pol(struct vpss_sync_pol sync);

/* set the PG_FRAME_SIZE register */

void vpss_set_pg_frame_size(struct vpss_pg_frame_size frame_size);

/*

 * vpss_check_and_clear_interrupt - check and clear interrupt

 * @irq - common enumerator for IRQ

 *

 * Following return values used:-

 * 0 - interrupt occurred and cleared

 * 1 - interrupt not occurred

 * 2 - interrupt status not available

 */

int vpss_dma_complete_interrupt(void);



#endif

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