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Commit efd92dfa authored by Russell King's avatar Russell King Committed by Russell King
Browse files

[SERIAL] serial_cs: add configuration quirk 



Add a quirk primerily to handle tweaks to the link->conf structure,
eg as required for Socket cards.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 7ef057fa

drivers/serial/serial_cs.c

+34 −5
Original line number Diff line number Diff line
@@ -84,6 +84,7 @@ struct serial_quirk { 
	unsigned int manfid;

	unsigned int prodid;

	int multi;		/* 1 = multifunction, > 1 = # ports */

	void (*config)(struct pcmcia_device *);

	void (*wakeup)(struct pcmcia_device *);

	int (*post)(struct pcmcia_device *);

};
@@ -164,6 +165,19 @@ static void quirk_wakeup_possio_gcc(struct pcmcia_device *link) 
	outb(0xC, ctrl + 1);

}



/*

 * Socket Dual IO: this enables irq's for second port

 */

static void quirk_config_socket(struct pcmcia_device *link)

{

	struct serial_info *info = link->priv;



	if (info->multi) {

		link->conf.Present |= PRESENT_EXT_STATUS;

		link->conf.ExtStatus = ESR_REQ_ATTN_ENA;

	}

}



static const struct serial_quirk quirks[] = {

	{

		.manfid	= MANFID_IBM,
@@ -208,6 +222,12 @@ static const struct serial_quirk quirks[] = { 
		.manfid	= MANFID_SOCKET,

		.prodid	= PRODID_SOCKET_DUAL_RS232,

		.multi	= 2,

		.config	= quirk_config_socket,

	}, {

		.manfid	= MANFID_SOCKET,

		.prodid	= ~0,

		.multi	= -1,

		.config	= quirk_config_socket,

	}

};
@@ -504,6 +524,13 @@ static int simple_config(struct pcmcia_device *link) 
	}

	if (info->multi && (info->manfid == MANFID_3COM))

		link->conf.ConfigIndex &= ~(0x08);



	/*

	 * Apply any configuration quirks.

	 */

	if (info->quirk && info->quirk->config)

		info->quirk->config(link);



	i = pcmcia_request_configuration(link, &link->conf);

	if (i != CS_SUCCESS) {

		cs_error(link, RequestConfiguration, i);
@@ -592,11 +619,13 @@ static int multi_config(struct pcmcia_device * link) 
		cs_error(link, RequestIRQ, i);

		link->irq.AssignedIRQ = 0;

	}

	/* Socket Dual IO: this enables irq's for second port */

	if (info->multi && (info->manfid == MANFID_SOCKET)) {

		link->conf.Present |= PRESENT_EXT_STATUS;

		link->conf.ExtStatus = ESR_REQ_ATTN_ENA;

	}



	/*

	 * Apply any configuration quirks.

	 */

	if (info->quirk && info->quirk->config)

		info->quirk->config(link);



	i = pcmcia_request_configuration(link, &link->conf);

	if (i != CS_SUCCESS) {

		cs_error(link, RequestConfiguration, i);