1 /*-
29 #include <sys/kernel.h>
94 #define	SMB_STS_PEC	0x1f	/* PEC (CRC-8) Error */
114 #define	AMDSMB_LOCK(amdsmb)		mtx_lock(&(amdsmb)->lock)
115 #define	AMDSMB_UNLOCK(amdsmb)		mtx_unlock(&(amdsmb)->lock)
116 #define	AMDSMB_LOCK_ASSERT(amdsmb)	mtx_assert(&(amdsmb)->lock, MA_OWNED)
119 	(bus_read_1(amdsmb->res, register))
121 	(bus_write_1(amdsmb->res, register, value))
127 	  PCI_DESCR("AMD-8111 SMBus 2.0 Controller") }
138 	device_set_desc(dev, tbl->descr);  in amdsmb_probe()
149 	amdsmb_sc->rid = PCIR_BAR(0);  in amdsmb_attach()
151 	amdsmb_sc->res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,  in amdsmb_attach()
152 		&amdsmb_sc->rid, RF_ACTIVE);  in amdsmb_attach()
154 	if (amdsmb_sc->res == NULL) {  in amdsmb_attach()
159 	mtx_init(&amdsmb_sc->lock, device_get_nameunit(dev), "amdsmb", MTX_DEF);  in amdsmb_attach()
162 	amdsmb_sc->smbus = device_add_child(dev, "smbus", DEVICE_UNIT_ANY);  in amdsmb_attach()
163 	if (!amdsmb_sc->smbus) {  in amdsmb_attach()
178 	if (amdsmb_sc->smbus) {  in amdsmb_detach()
179 		device_delete_child(dev, amdsmb_sc->smbus);  in amdsmb_detach()
180 		amdsmb_sc->smbus = NULL;  in amdsmb_detach()
183 	mtx_destroy(&amdsmb_sc->lock);  in amdsmb_detach()
184 	if (amdsmb_sc->res)  in amdsmb_detach()
185 		bus_release_resource(dev, SYS_RES_IOPORT, amdsmb_sc->rid,  in amdsmb_detach()
186 		    amdsmb_sc->res);  in amdsmb_detach()
212 	while (timeout-- && AMDSMB_ECINB(sc, EC_SC) & EC_SC_IBF)  in amdsmb_ec_wait_write()
215 		device_printf(sc->smbus, "timeout waiting for IBF to clear\n");  in amdsmb_ec_wait_write()
226 	while (timeout-- && ~AMDSMB_ECINB(sc, EC_SC) & EC_SC_OBF)  in amdsmb_ec_wait_read()
229 		device_printf(sc->smbus, "timeout waiting for OBF to set\n");  in amdsmb_ec_wait_read()
289 		} while (temp != 0 && count--);  in amdsmb_wait()
325 amdsmb_quick(device_t dev, u_char slave, int how)  in amdsmb_quick()  argument
336 		AMDSMB_DEBUG(printf("amdsmb: QWRITE to 0x%x", slave));  in amdsmb_quick()
340 		AMDSMB_DEBUG(printf("amdsmb: QREAD to 0x%x", slave));  in amdsmb_quick()
347 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_quick()
359 amdsmb_sendb(device_t dev, u_char slave, char byte)  in amdsmb_sendb()  argument
366 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_sendb()
372 	   slave, byte, error));  in amdsmb_sendb()
379 amdsmb_recvb(device_t dev, u_char slave, char *byte)  in amdsmb_recvb()  argument
385 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_recvb()
392 	    slave, *byte, error));  in amdsmb_recvb()
399 amdsmb_writeb(device_t dev, u_char slave, char cmd, char byte)  in amdsmb_writeb()  argument
407 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_writeb()
413 	    "error=0x%x\n", slave, cmd, byte, error));  in amdsmb_writeb()
420 amdsmb_readb(device_t dev, u_char slave, char cmd, char *byte)  in amdsmb_readb()  argument
427 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_readb()
434 	    "error=0x%x\n", slave, cmd, (unsigned char)*byte, error));  in amdsmb_readb()
441 amdsmb_writew(device_t dev, u_char slave, char cmd, short word)  in amdsmb_writew()  argument
450 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_writew()
456 	    "error=0x%x\n", slave, cmd, word, error));  in amdsmb_writew()
463 amdsmb_readw(device_t dev, u_char slave, char cmd, short *word)  in amdsmb_readw()  argument
471 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_readw()
481 	    "error=0x%x\n", slave, cmd, (unsigned short)*word, error));  in amdsmb_readw()
488 amdsmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf)  in amdsmb_bwrite()  argument
502 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_bwrite()
508 	    "error=0x%x", slave, count, cmd, error));  in amdsmb_bwrite()
515 amdsmb_bread(device_t dev, u_char slave, char cmd, u_char *count, char *buf)  in amdsmb_bread()  argument
526 	amdsmb_ec_write(sc, SMB_ADDR, slave);  in amdsmb_bread()
540 	    "error=0x%x", slave, *count, cmd, error));  in amdsmb_bread()