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>
This commit is contained in:
Dominik Brodowski 2010-07-30 09:51:52 +02:00
parent 9485ee14e1
commit 440eed43e2
43 changed files with 122 additions and 331 deletions

View file

@ -472,7 +472,6 @@ static void prism2_detach(struct pcmcia_device *link)
static int prism2_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)
@ -481,28 +480,6 @@ static int prism2_config_check(struct pcmcia_device *p_dev,
PDEBUG(DEBUG_EXTRA, "Checking CFTABLE_ENTRY 0x%02X "
"(default 0x%02X)\n", cfg->index, dflt->index);
/* Does this card need audio output? */
if (cfg->flags & CISTPL_CFTABLE_AUDIO)
p_dev->config_flags |= CONF_ENABLE_SPKR;
/* 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 && !ignore_cis_vcc) {
PDEBUG(DEBUG_EXTRA, " Vcc mismatch - skipping"
" this entry\n");
return -ENODEV;
}
} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] /
10000 && !ignore_cis_vcc) {
PDEBUG(DEBUG_EXTRA, " Vcc (default) mismatch "
"- skipping this entry\n");
return -ENODEV;
}
}
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))
@ -553,6 +530,10 @@ static int prism2_config(struct pcmcia_device *link)
}
/* Look for an appropriate configuration table entry in the CIS */
link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_AUDIO |
CONF_AUTO_CHECK_VCC;
if (ignore_cis_vcc)
link->config_flags &= ~CONF_AUTO_CHECK_VCC;
ret = pcmcia_loop_config(link, prism2_config_check, NULL);
if (ret) {
if (!ignore_cis_vcc)