1 /*-
43 #include <dev/pci/pcivar.h>
44 #include <dev/pci/pcireg.h>
46 #include <dev/smbus/smbconf.h>
60  * I/O registers offsets - the base address is programmed via the
63 #define SMBSTS		0x0	/* SMBus host/slave status register */
64 #define SMBCMD		0x1	/* SMBus host/slave command register */
130 #define	ALPM_LOCK(alpm)		mtx_lock(&(alpm)->lock)
131 #define	ALPM_UNLOCK(alpm)	mtx_unlock(&(alpm)->lock)
132 #define	ALPM_LOCK_ASSERT(alpm)	mtx_assert(&(alpm)->lock, MA_OWNED)
135 	(bus_space_read_1(alpm->smbst, alpm->smbsh, register))
137 	(bus_space_write_1(alpm->smbst, alpm->smbsh, register, value))
139 static int	alpm_detach(device_t dev);
142 alpm_probe(device_t dev)  in alpm_probe()  argument
145 	if (pci_get_devid(dev) == ACER_M1543_PMU_ID) {  in alpm_probe()
146 		device_set_desc(dev, "AcerLabs M15x3 Power Management Unit");  in alpm_probe()
155 alpm_attach(device_t dev)  in alpm_attach()  argument
161 	alpm = device_get_softc(dev);  in alpm_attach()
164 	l = pci_read_config(dev, ATPC, 1);  in alpm_attach()
165 	pci_write_config(dev, ATPC, l & ~ATPC_SMBCTRL, 1);  in alpm_attach()
169 	l = pci_read_config(dev, SMBHCBC, 1);  in alpm_attach()
172 	pci_write_config(dev, SMBHCBC, l, 1);  in alpm_attach()
176 		l = pci_read_config(dev, SMBHSI, 1);  in alpm_attach()
177 		device_printf(dev, "%s/%s",  in alpm_attach()
179 			(l & SMBHSI_SLAVE) ? "slave":"noslave");  in alpm_attach()
181 		l = pci_read_config(dev, SMBHCBC, 1);  in alpm_attach()
209 	alpm->res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,  in alpm_attach()
212 	if (alpm->res == NULL) {  in alpm_attach()
213 		device_printf(dev,"Could not allocate Bus space\n");  in alpm_attach()
216 	alpm->smbst = rman_get_bustag(alpm->res);  in alpm_attach()
217 	alpm->smbsh = rman_get_bushandle(alpm->res);  in alpm_attach()
218 	mtx_init(&alpm->lock, device_get_nameunit(dev), "alpm", MTX_DEF);  in alpm_attach()
221 	alpm->smbus = device_add_child(dev, "smbus", DEVICE_UNIT_ANY);  in alpm_attach()
222 	if (alpm->smbus == NULL) {  in alpm_attach()
223 		alpm_detach(dev);  in alpm_attach()
226 	bus_attach_children(dev);  in alpm_attach()
232 alpm_detach(device_t dev)  in alpm_detach()  argument
234 	struct alpm_softc *alpm = device_get_softc(dev);  in alpm_detach()
237 	error = bus_generic_detach(dev);  in alpm_detach()
241 	mtx_destroy(&alpm->lock);  in alpm_detach()
243 	if (alpm->res)  in alpm_detach()
244 		bus_release_resource(dev, SYS_RES_IOPORT, SMBBA, alpm->res);  in alpm_detach()
250 alpm_callback(device_t dev, int index, void *data)  in alpm_callback()  argument
308 	while (count--) {  in alpm_wait()
338 alpm_quick(device_t dev, u_char slave, int how)  in alpm_quick()  argument
340 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_quick()
352 		ALPM_DEBUG(printf("alpm: QWRITE to 0x%x", slave));  in alpm_quick()
353 		ALPM_SMBOUTB(sc, SMBHADDR, slave & ~LSB);  in alpm_quick()
356 		ALPM_DEBUG(printf("alpm: QREAD to 0x%x", slave));  in alpm_quick()
357 		ALPM_SMBOUTB(sc, SMBHADDR, slave | LSB);  in alpm_quick()
375 alpm_sendb(device_t dev, u_char slave, char byte)  in alpm_sendb()  argument
377 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_sendb()
387 	ALPM_SMBOUTB(sc, SMBHADDR, slave & ~LSB);  in alpm_sendb()
394 	ALPM_DEBUG(printf("alpm: SENDB to 0x%x, byte=0x%x, error=0x%x\n", slave, byte, error));  in alpm_sendb()
401 alpm_recvb(device_t dev, u_char slave, char *byte)  in alpm_recvb()  argument
403 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_recvb()
413 	ALPM_SMBOUTB(sc, SMBHADDR, slave | LSB);  in alpm_recvb()
420 	ALPM_DEBUG(printf("alpm: RECVB from 0x%x, byte=0x%x, error=0x%x\n", slave, *byte, error));  in alpm_recvb()
427 alpm_writeb(device_t dev, u_char slave, char cmd, char byte)  in alpm_writeb()  argument
429 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_writeb()
439 	ALPM_SMBOUTB(sc, SMBHADDR, slave & ~LSB);  in alpm_writeb()
447 …ALPM_DEBUG(printf("alpm: WRITEB to 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, byte, err…  in alpm_writeb()
454 alpm_readb(device_t dev, u_char slave, char cmd, char *byte)  in alpm_readb()  argument
456 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_readb()
466 	ALPM_SMBOUTB(sc, SMBHADDR, slave | LSB);  in alpm_readb()
474 …ALPM_DEBUG(printf("alpm: READB from 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, *byte, e…  in alpm_readb()
481 alpm_writew(device_t dev, u_char slave, char cmd, short word)  in alpm_writew()  argument
483 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_writew()
493 	ALPM_SMBOUTB(sc, SMBHADDR, slave & ~LSB);  in alpm_writew()
502 …ALPM_DEBUG(printf("alpm: WRITEW to 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, word, err…  in alpm_writew()
509 alpm_readw(device_t dev, u_char slave, char cmd, short *word)  in alpm_readw()  argument
511 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_readw()
522 	ALPM_SMBOUTB(sc, SMBHADDR, slave | LSB);  in alpm_readw()
534 …ALPM_DEBUG(printf("alpm: READW from 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, *word, e…  in alpm_readw()
541 alpm_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf)  in alpm_bwrite()  argument
543 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_bwrite()
557 	ALPM_SMBOUTB(sc, SMBHADDR, slave & ~LSB);  in alpm_bwrite()
560 	 * 32-byte long internal buffer */  in alpm_bwrite()
565 	/* fill the 32-byte internal buffer */  in alpm_bwrite()
575 …ALPM_DEBUG(printf("alpm: WRITEBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, count, cmd, e…  in alpm_bwrite()
582 alpm_bread(device_t dev, u_char slave, char cmd, u_char *count, char *buf)  in alpm_bread()  argument
584 	struct alpm_softc *sc = (struct alpm_softc *)device_get_softc(dev);  in alpm_bread()
598 	ALPM_SMBOUTB(sc, SMBHADDR, slave | LSB);  in alpm_bread()
601 	 * 32-byte long internal buffer */  in alpm_bread()
612 	/* read the 32-byte internal buffer */  in alpm_bread()
622 …ALPM_DEBUG(printf("alpm: READBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, *count, cmd, e…  in alpm_bread()