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pcmcia: introduce autoconfiguration feature

Browse source 
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: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: Jiri Kosina <[email protected]>
CC: [email protected]
Acked-by: Gustavo F. Padovan <[email protected]> (for drivers/bluetooth)
Tested-by: Wolfram Sang <[email protected]>
Signed-off-by: Dominik Brodowski <[email protected]>
This commit is contained in:
Dominik Brodowski 2010-07-30 09:51:52 +02:00
commit 440eed43e2
43 changed files with 120 additions and 329 deletions
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23
drivers/ide/ide-cs.c
View file

@ -99,6 +99,7 @@ static int ide_probe(struct pcmcia_device *link)
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
link->config_flags |= CONF_ENABLE_IRQ;
link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC;
return ide_config(link);
} /* ide_attach */
@ -195,34 +196,16 @@ out_release:
struct pcmcia_config_check {
unsigned long ctl_base;
int skip_vcc;
int is_kme;
};
static int pcmcia_check_one_config(struct pcmcia_device *pdev,
cistpl_cftable_entry_t *cfg,
cistpl_cftable_entry_t *dflt,
unsigned int vcc,
void *priv_data)
{
struct pcmcia_config_check *stk = priv_data;
/* Check for matching Vcc, unless we're desperate */
if (!stk->skip_vcc) {
if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
return -ENODEV;
} else if (dflt->vcc.present & (1 << CISTPL_POWER_VNOM)) {
if (vcc != dflt->vcc.param[CISTPL_POWER_VNOM] / 10000)
return -ENODEV;
}
}
if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
pdev->vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
else if (dflt->vpp1.present & (1 << CISTPL_POWER_VNOM))
pdev->vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000;
if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
pdev->io_lines = io->flags & CISTPL_IO_LINES_MASK;
@ -271,10 +254,10 @@ static int ide_config(struct pcmcia_device *link)
if (!stk)
goto err_mem;
stk->is_kme = is_kme;
stk->skip_vcc = io_base = ctl_base = 0;
io_base = ctl_base = 0;
if (pcmcia_loop_config(link, pcmcia_check_one_config, stk)) {
stk->skip_vcc = 1;
link->config_flags &= ~CONF_AUTO_CHECK_VCC;
if (pcmcia_loop_config(link, pcmcia_check_one_config, stk))
goto failed; /* No suitable config found */
}