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pcmcia: simplify Status, ExtStatus register access

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The Status (CISREG_CCSR) and ExtStatus (CISREG_ESR) registers were
only accessed to enable audio output for some drivers and IRQ for
serial_cs.c. The former also required setting config_req_t.Attributes
to CONF_ENABLE_SPKR; the latter can be simplified to setting this
field to CONF_ENABLE_ESR.

CC: [email protected]
CC: [email protected]
CC: [email protected]
CC: [email protected]
Tested-by: Wolfram Sang <[email protected]>
Signed-off-by: Dominik Brodowski <[email protected]>
This commit is contained in:
Dominik Brodowski 2010-07-29 16:19:39 +02:00
commit fc30110103
16 changed files with 38 additions and 53 deletions
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2
drivers/pcmcia/cs_internal.h
View file

@ -36,7 +36,7 @@ typedef struct config_t {
unsigned int Attributes;
unsigned int IntType;
unsigned int ConfigBase;
unsigned char Status, Option, ExtStatus;
unsigned char Option;
unsigned int CardValues;
struct resource io[MAX_IO_WIN]; /* io ports */

28
drivers/pcmcia/pcmcia_resource.c
View file

@ -441,6 +441,8 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
struct pcmcia_socket *s = p_dev->socket;
config_t *c;
pccard_io_map iomap;
unsigned char status = 0;
unsigned char ext_status = 0;
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
@ -476,12 +478,21 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
s->socket.flags |= SS_ZVCARD | SS_IOCARD;
if (req->Attributes & CONF_ENABLE_DMA)
s->socket.flags |= SS_DMA_MODE;
if (req->Attributes & CONF_ENABLE_SPKR)
if (req->Attributes & CONF_ENABLE_SPKR) {
s->socket.flags |= SS_SPKR_ENA;
status = CCSR_AUDIO_ENA;
if (!(req->Present & PRESENT_STATUS))
dev_warn(&p_dev->dev, "speaker requested, but "
"PRESENT_STATUS not set!\n");
}
if (req->Attributes & CONF_ENABLE_IRQ)
s->socket.io_irq = s->pcmcia_irq;
else
s->socket.io_irq = 0;
if (req->Attributes & CONF_ENABLE_ESR) {
req->Present |= PRESENT_EXT_STATUS;
ext_status = ESR_REQ_ATTN_ENA;
}
s->ops->set_socket(s, &s->socket);
s->lock_count++;
@ -513,14 +524,13 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev,
pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option);
mdelay(40);
}
if (req->Present & PRESENT_STATUS) {
c->Status = req->Status;
pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status);
}
if (req->Present & PRESENT_EXT_STATUS) {
c->ExtStatus = req->ExtStatus;
pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus);
}
if (req->Present & PRESENT_STATUS)
pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &status);
if (req->Present & PRESENT_EXT_STATUS)
pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1,
&ext_status);
if (req->Present & PRESENT_IOBASE_0) {
u8 b = c->io[0].start & 0xff;
pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b);