pcmcia: use autoconfiguration feature for ioports and iomem

When CONF_AUTO_SET_IO or CONF_AUTO_SET_IOMEM are set, the corresponding
fields in struct pcmcia_device *p_dev->resource[0,1,2] are set
accordinly. Drivers wishing to override certain settings may do so in
the callback function, but they no longer need to parse the CIS entries
stored in cistpl_cftable_entry_t themselves.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: linux-bluetooth@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

5 files changed, 74 insertions, 109 deletions

diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c
index 17f1040e255e..9d9d997f2e59 100644
--- a/drivers/net/pcmcia/axnet_cs.c
+++ b/drivers/net/pcmcia/axnet_cs.c
@@ -284,34 +284,16 @@ static int try_io_port(struct pcmcia_device *link)
     }
 }
 
-static int axnet_configcheck(struct pcmcia_device *p_dev,
-			     cistpl_cftable_entry_t *cfg,
-			     cistpl_cftable_entry_t *dflt,
-			     void *priv_data)
+static int axnet_configcheck(struct pcmcia_device *p_dev, void *priv_data)
 {
-	int i;
-	cistpl_io_t *io = &cfg->io;
-
-	if (cfg->index == 0 || cfg->io.nwin == 0)
-		return -ENODEV;
+	if (p_dev->config_index == 0)
+		return -EINVAL;
 
 	p_dev->config_index = 0x05;
-	/* For multifunction cards, by convention, we configure the
-	   network function with window 0, and serial with window 1 */
-	if (io->nwin > 1) {
-		i = (io->win[1].len > io->win[0].len);
-		p_dev->resource[1]->start = io->win[1-i].base;
-		p_dev->resource[1]->end = io->win[1-i].len;
-	} else {
-		i = p_dev->resource[1]->end = 0;
-	}
-	p_dev->resource[0]->start = io->win[i].base;
-	p_dev->resource[0]->end = io->win[i].len;
-	p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
-	if (p_dev->resource[0]->end + p_dev->resource[1]->end >= 32)
-		return try_io_port(p_dev);
+	if (p_dev->resource[0]->end + p_dev->resource[1]->end < 32)
+		return -ENODEV;
 
-	return -ENODEV;
+	return try_io_port(p_dev);
 }
 
 static int axnet_config(struct pcmcia_device *link)
@@ -324,6 +306,7 @@ static int axnet_config(struct pcmcia_device *link)
 
     /* don't trust the CIS on this; Linksys got it wrong */
     link->config_regs = 0x63;
+    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
     ret = pcmcia_loop_config(link, axnet_configcheck, NULL);
     if (ret != 0)
 	goto failed;
@@ -331,7 +314,6 @@ static int axnet_config(struct pcmcia_device *link)
     if (!link->irq)
 	    goto failed;
 
-    link->config_flags |= CONF_ENABLE_IRQ;
     if (resource_size(link->resource[1]) == 8)
 	link->config_flags |= CONF_ENABLE_SPKR;
     
diff --git a/drivers/net/pcmcia/fmvj18x_cs.c b/drivers/net/pcmcia/fmvj18x_cs.c
index c1479e3bfab4..792ab38d979c 100644
--- a/drivers/net/pcmcia/fmvj18x_cs.c
+++ b/drivers/net/pcmcia/fmvj18x_cs.c
@@ -319,10 +319,7 @@ static int ungermann_try_io_port(struct pcmcia_device *link)
     return ret;	/* RequestIO failed */
 }
 
-static int fmvj18x_ioprobe(struct pcmcia_device *p_dev,
-			   cistpl_cftable_entry_t *cfg,
-			   cistpl_cftable_entry_t *dflt,
-			   void *priv_data)
+static int fmvj18x_ioprobe(struct pcmcia_device *p_dev, void *priv_data)
 {
 	return 0; /* strange, but that's what the code did already before... */
 }
diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c
index 12b028c6abc9..ffe2587b9145 100644
--- a/drivers/net/pcmcia/pcnet_cs.c
+++ b/drivers/net/pcmcia/pcnet_cs.c
@@ -259,7 +259,7 @@ static int pcnet_probe(struct pcmcia_device *link)
     info->p_dev = link;
     link->priv = dev;
 
-    link->config_flags |= CONF_ENABLE_IRQ;
+    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
 
     dev->netdev_ops = &pcnet_netdev_ops;
 
@@ -500,42 +500,22 @@ static int try_io_port(struct pcmcia_device *link)
     }
 }
 
-static int pcnet_confcheck(struct pcmcia_device *p_dev,
-			   cistpl_cftable_entry_t *cfg,
-			   cistpl_cftable_entry_t *dflt,
-			   void *priv_data)
+static int pcnet_confcheck(struct pcmcia_device *p_dev, void *priv_data)
 {
 	int *priv = priv_data;
 	int try = (*priv & 0x1);
-	int i;
-	cistpl_io_t *io = &cfg->io;
 
-	if (cfg->index == 0 || cfg->io.nwin == 0)
-		return -EINVAL;
+	*priv &= (p_dev->resource[2]->end >= 0x4000) ? 0x10 : ~0x10;
 
-	/* For multifunction cards, by convention, we configure the
-	   network function with window 0, and serial with window 1 */
-	if (io->nwin > 1) {
-		i = (io->win[1].len > io->win[0].len);
-		p_dev->resource[1]->start = io->win[1-i].base;
-		p_dev->resource[1]->end = io->win[1-i].len;
-	} else {
-		i = p_dev->resource[1]->end = 0;
-	}
+	if (p_dev->config_index == 0)
+		return -EINVAL;
 
-	*priv &= ((cfg->mem.nwin == 1) &&
-		  (cfg->mem.win[0].len >= 0x4000)) ? 0x10 : ~0x10;
+	if (p_dev->resource[0]->end + p_dev->resource[1]->end < 32)
+		return -EINVAL;
 
-	p_dev->resource[0]->start = io->win[i].base;
-	p_dev->resource[0]->end = io->win[i].len;
-	if (!try)
-		p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
-	else
+	if (try)
 		p_dev->io_lines = 16;
-	if (p_dev->resource[0]->end + p_dev->resource[1]->end >= 32)
-		return try_io_port(p_dev);
-
-	return -EINVAL;
+	return try_io_port(p_dev);
 }
 
 static hw_info_t *pcnet_try_config(struct pcmcia_device *link,
diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index e127d2b546dd..a8cef28507de 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -323,9 +323,6 @@ static int smc91c92_probe(struct pcmcia_device *link)
     link->priv = dev;
 
     spin_lock_init(&smc->lock);
-    link->resource[0]->end = 16;
-    link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
-    link->config_flags |= CONF_ENABLE_IRQ;
 
     /* The SMC91c92-specific entries in the device structure. */
     dev->netdev_ops = &smc_netdev_ops;
@@ -417,18 +414,21 @@ static int mhz_3288_power(struct pcmcia_device *link)
     return 0;
 }
 
-static int mhz_mfc_config_check(struct pcmcia_device *p_dev,
-				cistpl_cftable_entry_t *cf,
-				cistpl_cftable_entry_t *dflt,
-				void *priv_data)
+static int mhz_mfc_config_check(struct pcmcia_device *p_dev, void *priv_data)
 {
 	int k;
-	p_dev->resource[1]->start = cf->io.win[0].base;
+	p_dev->io_lines = 16;
+	p_dev->resource[1]->start = p_dev->resource[0]->start;
+	p_dev->resource[1]->end = 8;
+	p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
+	p_dev->resource[0]->end = 16;
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 	for (k = 0; k < 0x400; k += 0x10) {
 		if (k & 0x80)
 			continue;
 		p_dev->resource[0]->start = k ^ 0x300;
-		p_dev->io_lines = 16;
 		if (!pcmcia_request_io(p_dev))
 			return 0;
 	}
@@ -442,9 +442,8 @@ static int mhz_mfc_config(struct pcmcia_device *link)
     unsigned int offset;
     int i;
 
-    link->config_flags |= CONF_ENABLE_SPKR;
-    link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
-    link->resource[1]->end = 8;
+    link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ |
+	    CONF_AUTO_SET_IO;
 
     /* The Megahertz combo cards have modem-like CIS entries, so
        we have to explicitly try a bunch of port combinations. */
@@ -586,13 +585,12 @@ static int mot_setup(struct pcmcia_device *link)
 
 /*====================================================================*/
 
-static int smc_configcheck(struct pcmcia_device *p_dev,
-			   cistpl_cftable_entry_t *cf,
-			   cistpl_cftable_entry_t *dflt,
-			   void *priv_data)
+static int smc_configcheck(struct pcmcia_device *p_dev, void *priv_data)
 {
-	p_dev->resource[0]->start = cf->io.win[0].base;
-	p_dev->io_lines = cf->io.flags & CISTPL_IO_LINES_MASK;
+	p_dev->resource[0]->end = 16;
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
+
 	return pcmcia_request_io(p_dev);
 }
 
@@ -601,7 +599,8 @@ static int smc_config(struct pcmcia_device *link)
     struct net_device *dev = link->priv;
     int i;
 
-    link->resource[0]->end = 16;
+    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
+
     i = pcmcia_loop_config(link, smc_configcheck, NULL);
     if (!i)
 	    dev->base_addr = link->resource[0]->start;
@@ -634,7 +633,7 @@ static int osi_config(struct pcmcia_device *link)
     static const unsigned int com[4] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
     int i, j;
 
-    link->config_flags |= CONF_ENABLE_SPKR;
+    link->config_flags |= CONF_ENABLE_SPKR | CONF_ENABLE_IRQ;
     link->resource[0]->end = 64;
     link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
     link->resource[1]->end = 8;
diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c
index 2bc2eb89c4cd..cecc07454e9e 100644
--- a/drivers/net/pcmcia/xirc2ps_cs.c
+++ b/drivers/net/pcmcia/xirc2ps_cs.c
@@ -528,7 +528,6 @@ xirc2ps_probe(struct pcmcia_device *link)
     link->priv = dev;
 
     /* General socket configuration */
-    link->config_flags |= CONF_ENABLE_IRQ;
     link->config_index = 1;
 
     /* Fill in card specific entries */
@@ -665,42 +664,53 @@ has_ce2_string(struct pcmcia_device * p_dev)
 }
 
 static int
-xirc2ps_config_modem(struct pcmcia_device *p_dev,
-		     cistpl_cftable_entry_t *cf,
-		     cistpl_cftable_entry_t *dflt,
-		     void *priv_data)
+xirc2ps_config_modem(struct pcmcia_device *p_dev, void *priv_data)
 {
 	unsigned int ioaddr;
 
-	if (cf->io.nwin > 0  &&  (cf->io.win[0].base & 0xf) == 8) {
-		for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
-			p_dev->resource[1]->start = cf->io.win[0].base;
-			p_dev->resource[0]->start = ioaddr;
-			if (!pcmcia_request_io(p_dev))
-				return 0;
-		}
+	if ((p_dev->resource[0]->start & 0xf) == 8)
+		return -ENODEV;
+
+	p_dev->resource[0]->end = 16;
+	p_dev->resource[1]->end = 8;
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
+	p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
+	p_dev->io_lines = 10;
+
+	p_dev->resource[1]->start = p_dev->resource[0]->start;
+	for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
+		p_dev->resource[0]->start = ioaddr;
+		if (!pcmcia_request_io(p_dev))
+			return 0;
 	}
 	return -ENODEV;
 }
 
 static int
-xirc2ps_config_check(struct pcmcia_device *p_dev,
-		     cistpl_cftable_entry_t *cf,
-		     cistpl_cftable_entry_t *dflt,
-		     void *priv_data)
+xirc2ps_config_check(struct pcmcia_device *p_dev, void *priv_data)
 {
 	int *pass = priv_data;
+	resource_size_t tmp = p_dev->resource[1]->start;
 
-	if (cf->io.nwin > 0 && (cf->io.win[0].base & 0xf) == 8) {
-		p_dev->resource[1]->start = cf->io.win[0].base;
-		p_dev->resource[0]->start = p_dev->resource[1]->start
-			+ (*pass ? (cf->index & 0x20 ? -24:8)
-			   : (cf->index & 0x20 ?   8:-24));
-		if (!pcmcia_request_io(p_dev))
-			return 0;
-	}
-	return -ENODEV;
+	tmp += (*pass ? (p_dev->config_index & 0x20 ? -24 : 8)
+		: (p_dev->config_index & 0x20 ?   8 : -24));
+
+	if ((p_dev->resource[0]->start & 0xf) == 8)
+		return -ENODEV;
+
+	p_dev->resource[0]->end = 18;
+	p_dev->resource[1]->end = 8;
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
+	p_dev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
+	p_dev->io_lines = 10;
 
+	p_dev->resource[1]->start = p_dev->resource[0]->start;
+	p_dev->resource[0]->start = tmp;
+	return pcmcia_request_io(p_dev);
 }
 
 
@@ -803,21 +813,16 @@ xirc2ps_config(struct pcmcia_device * link)
 	goto failure;
     }
 
-    link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
-    link->io_lines = 10;
     if (local->modem) {
 	int pass;
+	link->config_flags |= CONF_AUTO_SET_IO;
 
-	link->resource[1]->end = 8;
-	link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
 	if (local->dingo) {
 	    /* Take the Modem IO port from the CIS and scan for a free
 	     * Ethernet port */
-	    link->resource[0]->end = 16; /* no Mako stuff anymore */
 	    if (!pcmcia_loop_config(link, xirc2ps_config_modem, NULL))
 		    goto port_found;
 	} else {
-	    link->resource[0]->end = 18;
 	    /* We do 2 passes here: The first one uses the regular mapping and
 	     * the second tries again, thereby considering that the 32 ports are
 	     * mirrored every 32 bytes. Actually we use a mirrored port for
@@ -833,7 +838,9 @@ xirc2ps_config(struct pcmcia_device * link)
 	}
 	printk(KNOT_XIRC "no ports available\n");
     } else {
+	link->io_lines = 10;
 	link->resource[0]->end = 16;
+	link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
 	for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) {
 	    link->resource[0]->start = ioaddr;
 	    if (!(err = pcmcia_request_io(link)))