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MFp4:

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o Protect .h against multiple includes.
	o eliminate the pointers to the read/write routines.  The
	  bus_space_read routines can cope since we have the offset
	  field.
	o Print a warning if the requested map address is > 16M and
	  your chipset doesn't support the extended ExCA registers.
This commit is contained in:
Warner Losh 2002-07-26 08:01:08 +00:00
parent a850203de0
commit 6dfd31d460
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=100703
3 changed files with 25 additions and 20 deletions
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19
sys/dev/exca/exca.c
View file

@ -82,7 +82,6 @@
#define DPRINTF(fmt, args...)
#endif
/* memory */
#define EXCA_MEMINFO(NUM) { \
@ -198,6 +197,11 @@ exca_mem_map(struct exca_softc *sc, int kind, struct resource *res)
}
if (win >= EXCA_MEM_WINS)
return (1);
if (((rman_get_start(res) >> EXCA_CARDMEM_ADDRX_SHIFT) & 0xff) != 0 &&
(sc->flags & EXCA_HAS_MEMREG_WIN) == 0) {
device_printf(sc->dev, "Does not support mapping above 24M.");
return (1);
}
sc->mem[win].cardaddr = 0;
sc->mem[win].memt = rman_get_bustag(res);
@ -555,13 +559,10 @@ exca_reset(struct exca_softc *sc, device_t child)
* Initialize the exca_softc data structure for the first time.
*/
void
exca_init(struct exca_softc *sc, device_t dev, exca_write_t *wrfn,
exca_read_t *rdfn, bus_space_tag_t bst, bus_space_handle_t bsh,
uint32_t offset)
exca_init(struct exca_softc *sc, device_t dev,
bus_space_tag_t bst, bus_space_handle_t bsh, uint32_t offset)
{
sc->dev = dev;
sc->write_exca = wrfn;
sc->read_exca = rdfn;
sc->memalloc = 0;
sc->ioalloc = 0;
sc->bst = bst;
@ -580,8 +581,7 @@ exca_init(struct exca_softc *sc, device_t dev, exca_write_t *wrfn,
* "exca" parameter.
*/
int
exca_probe_slots(device_t dev, struct exca_softc *exca, exca_write_t writefnp,
exca_read_t readfnp)
exca_probe_slots(device_t dev, struct exca_softc *exca)
{
int rid;
struct resource *res;
@ -599,8 +599,7 @@ exca_probe_slots(device_t dev, struct exca_softc *exca, exca_write_t writefnp,
iot = rman_get_bustag(res);
ioh = rman_get_bushandle(res);
for (i = 0; i < EXCA_NSLOTS; i++) {
exca_init(&exca[i], dev, writefnp, readfnp, iot, ioh,
i * EXCA_SOCKET_SIZE);
exca_init(&exca[i], dev, iot, ioh, i * EXCA_SOCKET_SIZE);
if (exca_is_pcic(&exca[i])) {
err = 0;
exca[i].flags |= EXCA_SOCKET_PRESENT;

5
sys/dev/exca/excareg.h
View file

@ -55,6 +55,9 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SYS_DEV_EXCA_EXCAREG_H
#define _SYS_DEV_EXCA_EXCAREG_H
/*
* All information is from the intel 82365sl PC Card Interface Controller
* (PCIC) data sheet, marked "preliminary". Order number 290423-002, January
@ -419,3 +422,5 @@
#else
#define EXCA_INT_MASK_ALLOWED 0xDEB8 /* AT */
#endif
#endif /* !_SYS_DEV_EXCA_EXCAREG_H */

21
sys/dev/exca/excavar.h
View file

@ -54,18 +54,17 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SYS_DEV_EXCA_EXCAVAR_H
#define _SYS_DEV_EXCA_EXCAVAR_H
/*
* Structure to manage the ExCA part of the chip.
*/
struct exca_softc;
typedef uint8_t (exca_read_t)(struct exca_softc *, int);
typedef void (exca_write_t)(struct exca_softc *, int, uint8_t);
struct exca_softc
{
device_t dev;
exca_read_t *read_exca;
exca_write_t *write_exca;
int memalloc;
struct pccard_mem_handle mem[EXCA_MEM_WINS];
int ioalloc;
@ -74,11 +73,12 @@ struct exca_softc
bus_space_handle_t bsh;
uint32_t flags;
#define EXCA_SOCKET_PRESENT 0x00000001
#define EXCA_HAS_MEMREG_WIN 0x00000002
uint32_t offset;
};
void exca_init(struct exca_softc *sc, device_t dev, exca_write_t *wrfn,
exca_read_t *rdfn, bus_space_tag_t, bus_space_handle_t, uint32_t);
void exca_init(struct exca_softc *sc, device_t dev,
bus_space_tag_t, bus_space_handle_t, uint32_t);
int exca_io_map(struct exca_softc *sc, int width, struct resource *r);
int exca_io_unmap_res(struct exca_softc *sc, struct resource *res);
int exca_is_pcic(struct exca_softc *sc);
@ -88,20 +88,19 @@ int exca_mem_set_flags(struct exca_softc *sc, struct resource *res,
int exca_mem_set_offset(struct exca_softc *sc, struct resource *res,
uint32_t cardaddr, uint32_t *deltap);
int exca_mem_unmap_res(struct exca_softc *sc, struct resource *res);
int exca_probe_slots(device_t dev, struct exca_softc *, exca_write_t *,
exca_read_t *);
int exca_probe_slots(device_t dev, struct exca_softc *);
void exca_reset(struct exca_softc *, device_t child);
static __inline uint8_t
exca_read(struct exca_softc *sc, int reg)
{
return (sc->read_exca(sc, reg));
return (bus_space_read_1(sc->bst, sc->bsh, sc->offset + reg));
}
static __inline void
exca_write(struct exca_softc *sc, int reg, uint8_t val)
{
sc->write_exca(sc, reg, val);
return (bus_space_write_1(sc->bst, sc->bsh, sc->offset + reg, val));
}
static __inline void
@ -115,3 +114,5 @@ exca_clrb(struct exca_softc *sc, int reg, uint8_t mask)
{
exca_write(sc, reg, exca_read(sc, reg) & ~mask);
}
#endif /* !_SYS_DEV_EXCA_EXCAVAR_H */