pcmcia: introduce autoconfiguration feature

Introduce an autoconfiguration feature to set certain values in
pcmcia_loop_config(), instead of copying the same code over and over
in each PCMCIA driver. At first, introduce the following options:

CONF_AUTO_CHECK_VCC	check or matching Vcc entry
CONF_AUTO_SET_VPP	set Vpp
CONF_AUTO_AUDIO		enable the speaker line

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: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

2 files changed, 6 insertions, 49 deletions

diff --git a/drivers/net/wireless/orinoco/orinoco_cs.c b/drivers/net/wireless/orinoco/orinoco_cs.c
index 00316a1a109..b92173827b5 100644
--- a/drivers/net/wireless/orinoco/orinoco_cs.c
+++ b/drivers/net/wireless/orinoco/orinoco_cs.c
@@ -145,39 +145,11 @@ static void orinoco_cs_detach(struct pcmcia_device *link)
 static int orinoco_cs_config_check(struct pcmcia_device *p_dev,
 				   cistpl_cftable_entry_t *cfg,
 				   cistpl_cftable_entry_t *dflt,
-				   unsigned int vcc,
 				   void *priv_data)
 {
 	if (cfg->index == 0)
 		goto next_entry;
 
-	/* Use power settings for Vcc and Vpp if present */
-	/* Note that the CIS values need to be rescaled */
-	if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
-		if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) {
-			DEBUG(2, "%s: Vcc mismatch (vcc = %d, CIS = %d)\n",
-			      __func__, vcc,
-			      cfg->vcc.param[CISTPL_POWER_VNOM] / 10000);
-			if (!ignore_cis_vcc)
-				goto next_entry;
-		}
-	} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
-		if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000) {
-			DEBUG(2, "%s: Vcc mismatch (vcc = %d, CIS = %d)\n",
-			      __func__, vcc,
-			      dflt->vcc.param[CISTPL_POWER_VNOM] / 10000);
-			if (!ignore_cis_vcc)
-				goto next_entry;
-		}
-	}
-
-	if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
-		p_dev->vpp =
-			cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
-	else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
-		p_dev->vpp =
-			dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
-
 	/* Do we need to allocate an interrupt? */
 	p_dev->config_flags |= CONF_ENABLE_IRQ;
 
@@ -230,6 +202,9 @@ orinoco_cs_config(struct pcmcia_device *link)
 	 * and most client drivers will only use the CIS to fill in
 	 * implementation-defined details.
 	 */
+	link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
+	if (ignore_cis_vcc)
+		link->config_flags &= ~CONF_AUTO_CHECK_VCC;
 	ret = pcmcia_loop_config(link, orinoco_cs_config_check, NULL);
 	if (ret) {
 		if (!ignore_cis_vcc)
diff --git a/drivers/net/wireless/orinoco/spectrum_cs.c b/drivers/net/wireless/orinoco/spectrum_cs.c
index ca2c6c0c557..f462c78856e 100644
--- a/drivers/net/wireless/orinoco/spectrum_cs.c
+++ b/drivers/net/wireless/orinoco/spectrum_cs.c
@@ -207,32 +207,11 @@ static void spectrum_cs_detach(struct pcmcia_device *link)
 static int spectrum_cs_config_check(struct pcmcia_device *p_dev,
 				    cistpl_cftable_entry_t *cfg,
 				    cistpl_cftable_entry_t *dflt,
-				    unsigned int vcc,
 				    void *priv_data)
 {
 	if (cfg->index == 0)
 		goto next_entry;
 
-	/* Use power settings for Vcc and Vpp if present */
-	/* Note that the CIS values need to be rescaled */
-	if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
-		if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000) {
-			DEBUG(2, "%s: Vcc mismatch (vcc = %d, CIS = %d)\n",
-			      __func__, vcc,
-			      cfg->vcc.param[CISTPL_POWER_VNOM] / 10000);
-			if (!ignore_cis_vcc)
-				goto next_entry;
-		}
-	} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
-		if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000) {
-			DEBUG(2, "%s: Vcc mismatch (vcc = %d, CIS = %d)\n",
-			      __func__, vcc,
-			      dflt->vcc.param[CISTPL_POWER_VNOM] / 10000);
-			if (!ignore_cis_vcc)
-				goto next_entry;
-		}
-	}
-
 	if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
 		p_dev->vpp =
 			cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
@@ -292,6 +271,9 @@ spectrum_cs_config(struct pcmcia_device *link)
 	 * and most client drivers will only use the CIS to fill in
 	 * implementation-defined details.
 	 */
+	link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
+	if (ignore_cis_vcc)
+		link->config_flags &= ~CONF_AUTO_CHECK_VCC;
 	ret = pcmcia_loop_config(link, spectrum_cs_config_check, NULL);
 	if (ret) {
 		if (!ignore_cis_vcc)