17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
519397407SSherry Moore * Common Development and Distribution License (the "License").
619397407SSherry Moore * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
2219397407SSherry Moore * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23f47a9c50Smathue * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate #include <sys/stat.h> /* ddi_create_minor_node S_IFCHR */
277c478bd9Sstevel@tonic-gate #include <sys/modctl.h> /* for modldrv */
287c478bd9Sstevel@tonic-gate #include <sys/open.h> /* for open params. */
297c478bd9Sstevel@tonic-gate #include <sys/types.h>
307c478bd9Sstevel@tonic-gate #include <sys/kmem.h>
317c478bd9Sstevel@tonic-gate #include <sys/sunddi.h>
327c478bd9Sstevel@tonic-gate #include <sys/conf.h> /* req. by dev_ops flags MTSAFE etc. */
337c478bd9Sstevel@tonic-gate #include <sys/ddi.h>
347c478bd9Sstevel@tonic-gate #include <sys/file.h>
357c478bd9Sstevel@tonic-gate #include <sys/note.h>
367c478bd9Sstevel@tonic-gate
377c478bd9Sstevel@tonic-gate #include <sys/i2c/clients/pcf8574_impl.h>
387c478bd9Sstevel@tonic-gate
397c478bd9Sstevel@tonic-gate static void *pcf8574soft_statep;
407c478bd9Sstevel@tonic-gate
417c478bd9Sstevel@tonic-gate static int pcf8574_do_attach(dev_info_t *);
427c478bd9Sstevel@tonic-gate static int pcf8574_do_detach(dev_info_t *);
437c478bd9Sstevel@tonic-gate static int pcf8574_do_resume(void);
447c478bd9Sstevel@tonic-gate static int pcf8574_do_suspend(void);
457c478bd9Sstevel@tonic-gate static int pcf8574_get(struct pcf8574_unit *, uchar_t *);
467c478bd9Sstevel@tonic-gate static int pcf8574_set(struct pcf8574_unit *, uchar_t);
477c478bd9Sstevel@tonic-gate
487c478bd9Sstevel@tonic-gate /*
497c478bd9Sstevel@tonic-gate * cb ops (only need ioctl)
507c478bd9Sstevel@tonic-gate */
517c478bd9Sstevel@tonic-gate static int pcf8574_open(dev_t *, int, int, cred_t *);
527c478bd9Sstevel@tonic-gate static int pcf8574_close(dev_t, int, int, cred_t *);
537c478bd9Sstevel@tonic-gate static int pcf8574_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate static struct cb_ops pcf8574_cbops = {
567c478bd9Sstevel@tonic-gate pcf8574_open, /* open */
577c478bd9Sstevel@tonic-gate pcf8574_close, /* close */
587c478bd9Sstevel@tonic-gate nodev, /* strategy */
597c478bd9Sstevel@tonic-gate nodev, /* print */
607c478bd9Sstevel@tonic-gate nodev, /* dump */
617c478bd9Sstevel@tonic-gate nodev, /* read */
627c478bd9Sstevel@tonic-gate nodev, /* write */
637c478bd9Sstevel@tonic-gate pcf8574_ioctl, /* ioctl */
647c478bd9Sstevel@tonic-gate nodev, /* devmap */
657c478bd9Sstevel@tonic-gate nodev, /* mmap */
667c478bd9Sstevel@tonic-gate nodev, /* segmap */
677c478bd9Sstevel@tonic-gate nochpoll, /* poll */
687c478bd9Sstevel@tonic-gate ddi_prop_op, /* cb_prop_op */
697c478bd9Sstevel@tonic-gate NULL, /* streamtab */
707c478bd9Sstevel@tonic-gate D_NEW | D_MP | D_HOTPLUG, /* Driver compatibility flag */
717c478bd9Sstevel@tonic-gate CB_REV, /* rev */
727c478bd9Sstevel@tonic-gate nodev, /* int (*cb_aread)() */
737c478bd9Sstevel@tonic-gate nodev /* int (*cb_awrite)() */
747c478bd9Sstevel@tonic-gate };
757c478bd9Sstevel@tonic-gate
767c478bd9Sstevel@tonic-gate /*
777c478bd9Sstevel@tonic-gate * dev ops
787c478bd9Sstevel@tonic-gate */
797c478bd9Sstevel@tonic-gate static int pcf8574_attach(dev_info_t *dip, ddi_attach_cmd_t cmd);
807c478bd9Sstevel@tonic-gate static int pcf8574_detach(dev_info_t *dip, ddi_detach_cmd_t cmd);
817c478bd9Sstevel@tonic-gate
827c478bd9Sstevel@tonic-gate static struct dev_ops pcf8574_ops = {
837c478bd9Sstevel@tonic-gate DEVO_REV,
847c478bd9Sstevel@tonic-gate 0,
857c478bd9Sstevel@tonic-gate ddi_getinfo_1to1,
867c478bd9Sstevel@tonic-gate nulldev,
877c478bd9Sstevel@tonic-gate nulldev,
887c478bd9Sstevel@tonic-gate pcf8574_attach,
897c478bd9Sstevel@tonic-gate pcf8574_detach,
907c478bd9Sstevel@tonic-gate nodev,
917c478bd9Sstevel@tonic-gate &pcf8574_cbops,
9219397407SSherry Moore NULL, /* bus_ops */
9319397407SSherry Moore NULL, /* power */
9419397407SSherry Moore ddi_quiesce_not_needed, /* quiesce */
957c478bd9Sstevel@tonic-gate };
967c478bd9Sstevel@tonic-gate
977c478bd9Sstevel@tonic-gate extern struct mod_ops mod_driverops;
987c478bd9Sstevel@tonic-gate
997c478bd9Sstevel@tonic-gate static struct modldrv pcf8574_modldrv = {
1007c478bd9Sstevel@tonic-gate &mod_driverops, /* type of module - driver */
10188294e09SRichard Bean "PCF8574 i2c device driver",
1027c478bd9Sstevel@tonic-gate &pcf8574_ops
1037c478bd9Sstevel@tonic-gate };
1047c478bd9Sstevel@tonic-gate
1057c478bd9Sstevel@tonic-gate static struct modlinkage pcf8574_modlinkage = {
1067c478bd9Sstevel@tonic-gate MODREV_1,
1077c478bd9Sstevel@tonic-gate &pcf8574_modldrv,
1087c478bd9Sstevel@tonic-gate 0
1097c478bd9Sstevel@tonic-gate };
1107c478bd9Sstevel@tonic-gate
1117c478bd9Sstevel@tonic-gate
1127c478bd9Sstevel@tonic-gate int
_init(void)1137c478bd9Sstevel@tonic-gate _init(void)
1147c478bd9Sstevel@tonic-gate {
1157c478bd9Sstevel@tonic-gate int error;
1167c478bd9Sstevel@tonic-gate
1177c478bd9Sstevel@tonic-gate error = mod_install(&pcf8574_modlinkage);
1187c478bd9Sstevel@tonic-gate
1197c478bd9Sstevel@tonic-gate if (!error)
1207c478bd9Sstevel@tonic-gate (void) ddi_soft_state_init(&pcf8574soft_statep,
12119397407SSherry Moore sizeof (struct pcf8574_unit), 1);
1227c478bd9Sstevel@tonic-gate return (error);
1237c478bd9Sstevel@tonic-gate }
1247c478bd9Sstevel@tonic-gate
1257c478bd9Sstevel@tonic-gate int
_fini(void)1267c478bd9Sstevel@tonic-gate _fini(void)
1277c478bd9Sstevel@tonic-gate {
1287c478bd9Sstevel@tonic-gate int error;
1297c478bd9Sstevel@tonic-gate
1307c478bd9Sstevel@tonic-gate error = mod_remove(&pcf8574_modlinkage);
1317c478bd9Sstevel@tonic-gate if (!error)
1327c478bd9Sstevel@tonic-gate ddi_soft_state_fini(&pcf8574soft_statep);
1337c478bd9Sstevel@tonic-gate
1347c478bd9Sstevel@tonic-gate return (error);
1357c478bd9Sstevel@tonic-gate }
1367c478bd9Sstevel@tonic-gate
1377c478bd9Sstevel@tonic-gate int
_info(struct modinfo * modinfop)1387c478bd9Sstevel@tonic-gate _info(struct modinfo *modinfop)
1397c478bd9Sstevel@tonic-gate {
1407c478bd9Sstevel@tonic-gate return (mod_info(&pcf8574_modlinkage, modinfop));
1417c478bd9Sstevel@tonic-gate }
1427c478bd9Sstevel@tonic-gate
1437c478bd9Sstevel@tonic-gate static int
pcf8574_open(dev_t * devp,int flags,int otyp,cred_t * credp)1447c478bd9Sstevel@tonic-gate pcf8574_open(dev_t *devp, int flags, int otyp, cred_t *credp)
1457c478bd9Sstevel@tonic-gate {
1467c478bd9Sstevel@tonic-gate _NOTE(ARGUNUSED(credp))
1477c478bd9Sstevel@tonic-gate
1487c478bd9Sstevel@tonic-gate struct pcf8574_unit *unitp;
1497c478bd9Sstevel@tonic-gate int instance;
1507c478bd9Sstevel@tonic-gate int error = 0;
1517c478bd9Sstevel@tonic-gate
1527c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_WARN, "Opening the PCF8574 device\n"));
1537c478bd9Sstevel@tonic-gate
1547c478bd9Sstevel@tonic-gate instance = getminor(*devp);
1557c478bd9Sstevel@tonic-gate
1567c478bd9Sstevel@tonic-gate if (instance < 0) {
1577c478bd9Sstevel@tonic-gate return (ENXIO);
1587c478bd9Sstevel@tonic-gate }
1597c478bd9Sstevel@tonic-gate
1607c478bd9Sstevel@tonic-gate unitp = (struct pcf8574_unit *)
16119397407SSherry Moore ddi_get_soft_state(pcf8574soft_statep, instance);
1627c478bd9Sstevel@tonic-gate
1637c478bd9Sstevel@tonic-gate if (unitp == NULL) {
1647c478bd9Sstevel@tonic-gate return (ENXIO);
1657c478bd9Sstevel@tonic-gate }
1667c478bd9Sstevel@tonic-gate
1677c478bd9Sstevel@tonic-gate if (otyp != OTYP_CHR) {
1687c478bd9Sstevel@tonic-gate return (EINVAL);
1697c478bd9Sstevel@tonic-gate }
1707c478bd9Sstevel@tonic-gate
1717c478bd9Sstevel@tonic-gate mutex_enter(&unitp->pcf8574_mutex);
1727c478bd9Sstevel@tonic-gate
1737c478bd9Sstevel@tonic-gate if (flags & FEXCL) {
1747c478bd9Sstevel@tonic-gate if (unitp->pcf8574_oflag != 0) {
1757c478bd9Sstevel@tonic-gate error = EBUSY;
1767c478bd9Sstevel@tonic-gate } else {
1777c478bd9Sstevel@tonic-gate unitp->pcf8574_oflag = FEXCL;
1787c478bd9Sstevel@tonic-gate }
1797c478bd9Sstevel@tonic-gate } else {
1807c478bd9Sstevel@tonic-gate if (unitp->pcf8574_oflag == FEXCL) {
1817c478bd9Sstevel@tonic-gate error = EBUSY;
1827c478bd9Sstevel@tonic-gate } else {
1837c478bd9Sstevel@tonic-gate unitp->pcf8574_oflag = FOPEN;
1847c478bd9Sstevel@tonic-gate }
1857c478bd9Sstevel@tonic-gate }
1867c478bd9Sstevel@tonic-gate
1877c478bd9Sstevel@tonic-gate mutex_exit(&unitp->pcf8574_mutex);
1887c478bd9Sstevel@tonic-gate
1897c478bd9Sstevel@tonic-gate return (error);
1907c478bd9Sstevel@tonic-gate }
1917c478bd9Sstevel@tonic-gate
1927c478bd9Sstevel@tonic-gate static int
pcf8574_close(dev_t dev,int flags,int otyp,cred_t * credp)1937c478bd9Sstevel@tonic-gate pcf8574_close(dev_t dev, int flags, int otyp, cred_t *credp)
1947c478bd9Sstevel@tonic-gate {
1957c478bd9Sstevel@tonic-gate _NOTE(ARGUNUSED(flags, otyp, credp))
1967c478bd9Sstevel@tonic-gate
1977c478bd9Sstevel@tonic-gate struct pcf8574_unit *unitp;
1987c478bd9Sstevel@tonic-gate int instance;
1997c478bd9Sstevel@tonic-gate
2007c478bd9Sstevel@tonic-gate instance = getminor(dev);
2017c478bd9Sstevel@tonic-gate
2027c478bd9Sstevel@tonic-gate if (instance < 0) {
2037c478bd9Sstevel@tonic-gate return (ENXIO);
2047c478bd9Sstevel@tonic-gate }
2057c478bd9Sstevel@tonic-gate unitp = (struct pcf8574_unit *)
20619397407SSherry Moore ddi_get_soft_state(pcf8574soft_statep, instance);
2077c478bd9Sstevel@tonic-gate
2087c478bd9Sstevel@tonic-gate if (unitp == NULL) {
2097c478bd9Sstevel@tonic-gate return (ENXIO);
2107c478bd9Sstevel@tonic-gate }
2117c478bd9Sstevel@tonic-gate
2127c478bd9Sstevel@tonic-gate mutex_enter(&unitp->pcf8574_mutex);
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate unitp->pcf8574_oflag = 0;
2157c478bd9Sstevel@tonic-gate
2167c478bd9Sstevel@tonic-gate mutex_exit(&unitp->pcf8574_mutex);
2177c478bd9Sstevel@tonic-gate return (DDI_SUCCESS);
2187c478bd9Sstevel@tonic-gate }
2197c478bd9Sstevel@tonic-gate
2207c478bd9Sstevel@tonic-gate static int
pcf8574_get(struct pcf8574_unit * unitp,uchar_t * byte)221*52e32d38SToomas Soome pcf8574_get(struct pcf8574_unit *unitp, uchar_t *byte)
222*52e32d38SToomas Soome {
2237c478bd9Sstevel@tonic-gate i2c_transfer_t *i2c_tran_pointer;
2247c478bd9Sstevel@tonic-gate int err = I2C_SUCCESS;
2257c478bd9Sstevel@tonic-gate
2267c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_WARN, "Entered the pcf8574_get routine\n"));
2277c478bd9Sstevel@tonic-gate
2287c478bd9Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->pcf8574_hdl, &i2c_tran_pointer,
229*52e32d38SToomas Soome 0, 1, I2C_SLEEP);
2307c478bd9Sstevel@tonic-gate if (i2c_tran_pointer == NULL) {
2317c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in pcf8574_get "
232*52e32d38SToomas Soome "i2c_tran_pointer not allocated\n",
233*52e32d38SToomas Soome unitp->pcf8574_name));
2347c478bd9Sstevel@tonic-gate return (ENOMEM);
2357c478bd9Sstevel@tonic-gate }
2367c478bd9Sstevel@tonic-gate
2377c478bd9Sstevel@tonic-gate i2c_tran_pointer->i2c_flags = I2C_RD;
2387c478bd9Sstevel@tonic-gate err = i2c_transfer(unitp->pcf8574_hdl, i2c_tran_pointer);
2397c478bd9Sstevel@tonic-gate if (err) {
2407c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the i2c_transfer routine\n",
241*52e32d38SToomas Soome unitp->pcf8574_name));
2427c478bd9Sstevel@tonic-gate i2c_transfer_free(unitp->pcf8574_hdl, i2c_tran_pointer);
2437c478bd9Sstevel@tonic-gate return (err);
2447c478bd9Sstevel@tonic-gate }
2457c478bd9Sstevel@tonic-gate
2467c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_WARN, "Back from a transfer value is %x\n",
247*52e32d38SToomas Soome i2c_tran_pointer->i2c_rbuf[0]));
2487c478bd9Sstevel@tonic-gate *byte = i2c_tran_pointer->i2c_rbuf[0];
2497c478bd9Sstevel@tonic-gate
2507c478bd9Sstevel@tonic-gate i2c_transfer_free(unitp->pcf8574_hdl, i2c_tran_pointer);
2517c478bd9Sstevel@tonic-gate return (err);
2527c478bd9Sstevel@tonic-gate }
2537c478bd9Sstevel@tonic-gate
2547c478bd9Sstevel@tonic-gate static int
pcf8574_set(struct pcf8574_unit * unitp,uchar_t byte)255*52e32d38SToomas Soome pcf8574_set(struct pcf8574_unit *unitp, uchar_t byte)
256*52e32d38SToomas Soome {
2577c478bd9Sstevel@tonic-gate i2c_transfer_t *i2c_tran_pointer;
2587c478bd9Sstevel@tonic-gate int err = I2C_SUCCESS;
2597c478bd9Sstevel@tonic-gate
2607c478bd9Sstevel@tonic-gate (void) i2c_transfer_alloc(unitp->pcf8574_hdl, &i2c_tran_pointer,
261*52e32d38SToomas Soome 1, 0, I2C_SLEEP);
2627c478bd9Sstevel@tonic-gate if (i2c_tran_pointer == NULL) {
2637c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in pcf8574_set "
264*52e32d38SToomas Soome "i2c_tran_pointer not allocated\n",
265*52e32d38SToomas Soome unitp->pcf8574_name));
2667c478bd9Sstevel@tonic-gate return (ENOMEM);
2677c478bd9Sstevel@tonic-gate }
2687c478bd9Sstevel@tonic-gate
2697c478bd9Sstevel@tonic-gate i2c_tran_pointer->i2c_flags = I2C_WR;
2707c478bd9Sstevel@tonic-gate i2c_tran_pointer->i2c_wbuf[0] = byte;
2717c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_NOTE, "%s: contains %x\n", unitp->pcf8574_name,
272*52e32d38SToomas Soome i2c_tran_pointer->i2c_wbuf[0]));
2737c478bd9Sstevel@tonic-gate
2747c478bd9Sstevel@tonic-gate err = i2c_transfer(unitp->pcf8574_hdl, i2c_tran_pointer);
2757c478bd9Sstevel@tonic-gate if (err) {
2767c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the pcf8574_set"
277*52e32d38SToomas Soome " i2c_transfer routine\n",
278*52e32d38SToomas Soome unitp->pcf8574_name));
2797c478bd9Sstevel@tonic-gate i2c_transfer_free(unitp->pcf8574_hdl, i2c_tran_pointer);
2807c478bd9Sstevel@tonic-gate return (err);
2817c478bd9Sstevel@tonic-gate }
2827c478bd9Sstevel@tonic-gate i2c_transfer_free(unitp->pcf8574_hdl, i2c_tran_pointer);
2837c478bd9Sstevel@tonic-gate return (err);
2847c478bd9Sstevel@tonic-gate }
2857c478bd9Sstevel@tonic-gate
2867c478bd9Sstevel@tonic-gate static int
pcf8574_ioctl(dev_t dev,int cmd,intptr_t arg,int mode,cred_t * credp,int * rvalp)2877c478bd9Sstevel@tonic-gate pcf8574_ioctl(dev_t dev, int cmd, intptr_t arg, int mode,
288*52e32d38SToomas Soome cred_t *credp, int *rvalp)
2897c478bd9Sstevel@tonic-gate {
2907c478bd9Sstevel@tonic-gate _NOTE(ARGUNUSED(credp, rvalp))
2917c478bd9Sstevel@tonic-gate
2927c478bd9Sstevel@tonic-gate struct pcf8574_unit *unitp;
2937c478bd9Sstevel@tonic-gate int instance;
2947c478bd9Sstevel@tonic-gate int err = 0;
2957c478bd9Sstevel@tonic-gate i2c_bit_t ioctl_bit;
2967c478bd9Sstevel@tonic-gate i2c_port_t ioctl_port;
2977c478bd9Sstevel@tonic-gate uchar_t byte;
2987c478bd9Sstevel@tonic-gate
299*52e32d38SToomas Soome if (arg == (intptr_t)NULL) {
3007c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "PCF8574: ioctl: arg passed in to ioctl "
30119397407SSherry Moore "= NULL\n"));
3027c478bd9Sstevel@tonic-gate err = EINVAL;
3037c478bd9Sstevel@tonic-gate return (err);
3047c478bd9Sstevel@tonic-gate }
3057c478bd9Sstevel@tonic-gate
3067c478bd9Sstevel@tonic-gate instance = getminor(dev);
3077c478bd9Sstevel@tonic-gate unitp = (struct pcf8574_unit *)
30819397407SSherry Moore ddi_get_soft_state(pcf8574soft_statep, instance);
3097c478bd9Sstevel@tonic-gate if (unitp == NULL) {
3107c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "PCF8574: ioctl: unitp not filled\n");
3117c478bd9Sstevel@tonic-gate return (ENOMEM);
3127c478bd9Sstevel@tonic-gate }
3137c478bd9Sstevel@tonic-gate
3147c478bd9Sstevel@tonic-gate mutex_enter(&unitp->pcf8574_mutex);
3157c478bd9Sstevel@tonic-gate
3167c478bd9Sstevel@tonic-gate switch (cmd) {
3177c478bd9Sstevel@tonic-gate case I2C_GET_PORT:
3187c478bd9Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, (caddr_t)&ioctl_port,
31919397407SSherry Moore sizeof (i2c_port_t), mode) != DDI_SUCCESS) {
3207c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_GET_PORT"
32119397407SSherry Moore " ddi_copyin routine\n",
32219397407SSherry Moore unitp->pcf8574_name));
3237c478bd9Sstevel@tonic-gate err = EFAULT;
3247c478bd9Sstevel@tonic-gate break;
3257c478bd9Sstevel@tonic-gate }
3267c478bd9Sstevel@tonic-gate
3277c478bd9Sstevel@tonic-gate err = pcf8574_get(unitp, &byte);
3287c478bd9Sstevel@tonic-gate if (err != I2C_SUCCESS) {
3297c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_GET_PORT"
33019397407SSherry Moore " pcf8574_get routine\n",
33119397407SSherry Moore unitp->pcf8574_name));
3327c478bd9Sstevel@tonic-gate break;
3337c478bd9Sstevel@tonic-gate }
3347c478bd9Sstevel@tonic-gate
3357c478bd9Sstevel@tonic-gate ioctl_port.value = byte;
3367c478bd9Sstevel@tonic-gate if (ddi_copyout((caddr_t)&ioctl_port, (caddr_t)arg,
33719397407SSherry Moore sizeof (i2c_port_t), mode) != DDI_SUCCESS) {
3387c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in I2C_GET_PORT "
33919397407SSherry Moore "ddi_copyout routine\n",
34019397407SSherry Moore unitp->pcf8574_name));
3417c478bd9Sstevel@tonic-gate err = EFAULT;
3427c478bd9Sstevel@tonic-gate }
3437c478bd9Sstevel@tonic-gate
3447c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_NOTE, "%s: contains %x\n", unitp->pcf8574_name,
34519397407SSherry Moore byte));
3467c478bd9Sstevel@tonic-gate break;
3477c478bd9Sstevel@tonic-gate
3487c478bd9Sstevel@tonic-gate case I2C_SET_PORT:
3497c478bd9Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, (caddr_t)&ioctl_port,
35019397407SSherry Moore sizeof (uint8_t), mode) != DDI_SUCCESS) {
3517c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_SET_PORT"
35219397407SSherry Moore "ddi_cpoyin routine\n",
35319397407SSherry Moore unitp->pcf8574_name));
3547c478bd9Sstevel@tonic-gate err = EFAULT;
3557c478bd9Sstevel@tonic-gate break;
3567c478bd9Sstevel@tonic-gate }
3577c478bd9Sstevel@tonic-gate
3587c478bd9Sstevel@tonic-gate err = pcf8574_set(unitp, ioctl_port.value);
3597c478bd9Sstevel@tonic-gate if (err != I2C_SUCCESS) {
3607c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_SET_PORT"
36119397407SSherry Moore " pcf8574_set routine\n",
36219397407SSherry Moore unitp->pcf8574_name));
3637c478bd9Sstevel@tonic-gate break;
3647c478bd9Sstevel@tonic-gate }
3657c478bd9Sstevel@tonic-gate break;
3667c478bd9Sstevel@tonic-gate
3677c478bd9Sstevel@tonic-gate case I2C_GET_BIT:
3687c478bd9Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, (caddr_t)&ioctl_bit,
36919397407SSherry Moore sizeof (i2c_bit_t), mode) != DDI_SUCCESS) {
3707c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_GET_BIT"
37119397407SSherry Moore " ddi_copyin routine\n",
37219397407SSherry Moore unitp->pcf8574_name));
3737c478bd9Sstevel@tonic-gate err = EFAULT;
3747c478bd9Sstevel@tonic-gate break;
3757c478bd9Sstevel@tonic-gate }
3767c478bd9Sstevel@tonic-gate
377f47a9c50Smathue if (ioctl_bit.bit_num > 7) {
3787c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: In I2C_GET_BIT bit num"
37919397407SSherry Moore " was not between 0 and 7\n",
38019397407SSherry Moore unitp->pcf8574_name));
3817c478bd9Sstevel@tonic-gate err = EIO;
3827c478bd9Sstevel@tonic-gate break;
3837c478bd9Sstevel@tonic-gate }
3847c478bd9Sstevel@tonic-gate
3857c478bd9Sstevel@tonic-gate err = pcf8574_get(unitp, &byte);
3867c478bd9Sstevel@tonic-gate if (err != I2C_SUCCESS) {
3877c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_GET_BIT"
38819397407SSherry Moore " pcf8574_get routine\n",
38919397407SSherry Moore unitp->pcf8574_name));
3907c478bd9Sstevel@tonic-gate break;
3917c478bd9Sstevel@tonic-gate }
3927c478bd9Sstevel@tonic-gate
3937c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_NOTE, "%s: byte returned from device is %x\n",
39419397407SSherry Moore unitp->pcf8574_name, byte));
3957c478bd9Sstevel@tonic-gate ioctl_bit.bit_value = (boolean_t)PCF8574_BIT_READ_MASK(byte,
39619397407SSherry Moore ioctl_bit.bit_num);
3977c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_NOTE, "%s: byte now contains %x\n",
39819397407SSherry Moore unitp->pcf8574_name, byte));
3997c478bd9Sstevel@tonic-gate
4007c478bd9Sstevel@tonic-gate if (ddi_copyout((caddr_t)&ioctl_bit, (caddr_t)arg,
40119397407SSherry Moore sizeof (i2c_bit_t), mode) != DDI_SUCCESS) {
4027c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in I2C_GET_BIT"
40319397407SSherry Moore " ddi_copyout routine\n",
40419397407SSherry Moore unitp->pcf8574_name));
4057c478bd9Sstevel@tonic-gate err = EFAULT;
4067c478bd9Sstevel@tonic-gate }
4077c478bd9Sstevel@tonic-gate break;
4087c478bd9Sstevel@tonic-gate
4097c478bd9Sstevel@tonic-gate case I2C_SET_BIT:
4107c478bd9Sstevel@tonic-gate if (ddi_copyin((caddr_t)arg, (caddr_t)&ioctl_bit,
41119397407SSherry Moore sizeof (i2c_bit_t), mode) != DDI_SUCCESS) {
4127c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in I2C_SET_BIT"
41319397407SSherry Moore " ddi_copyin routine\n",
41419397407SSherry Moore unitp->pcf8574_name));
4157c478bd9Sstevel@tonic-gate err = EFAULT;
4167c478bd9Sstevel@tonic-gate break;
4177c478bd9Sstevel@tonic-gate }
4187c478bd9Sstevel@tonic-gate
419f47a9c50Smathue if (ioctl_bit.bit_num > 7) {
4207c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: I2C_SET_BIT: bit_num sent"
42119397407SSherry Moore " in was not between 0 and 7",
42219397407SSherry Moore unitp->pcf8574_name));
4237c478bd9Sstevel@tonic-gate err = EIO;
4247c478bd9Sstevel@tonic-gate break;
4257c478bd9Sstevel@tonic-gate }
4267c478bd9Sstevel@tonic-gate
4277c478bd9Sstevel@tonic-gate err = pcf8574_get(unitp, &byte);
4287c478bd9Sstevel@tonic-gate if (err != I2C_SUCCESS) {
4297c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_SET_BIT"
43019397407SSherry Moore " pcf8574_get routine\n",
43119397407SSherry Moore unitp->pcf8574_name));
4327c478bd9Sstevel@tonic-gate break;
4337c478bd9Sstevel@tonic-gate }
4347c478bd9Sstevel@tonic-gate
4357c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_NOTE, "%s: byte returned from device is %x\n",
43619397407SSherry Moore unitp->pcf8574_name, byte));
4377c478bd9Sstevel@tonic-gate byte = PCF8574_BIT_WRITE_MASK(byte, ioctl_bit.bit_num,
43819397407SSherry Moore ioctl_bit.bit_value);
4397c478bd9Sstevel@tonic-gate D1CMN_ERR((CE_NOTE, "%s: byte after shifting is %x\n",
44019397407SSherry Moore unitp->pcf8574_name, byte));
4417c478bd9Sstevel@tonic-gate
4427c478bd9Sstevel@tonic-gate err = pcf8574_set(unitp, byte);
4437c478bd9Sstevel@tonic-gate if (err != I2C_SUCCESS) {
4447c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Failed in the I2C_SET_BIT"
44519397407SSherry Moore " pcf8574_set routine\n",
44619397407SSherry Moore unitp->pcf8574_name));
4477c478bd9Sstevel@tonic-gate break;
4487c478bd9Sstevel@tonic-gate }
4497c478bd9Sstevel@tonic-gate break;
4507c478bd9Sstevel@tonic-gate
4517c478bd9Sstevel@tonic-gate default:
4527c478bd9Sstevel@tonic-gate D2CMN_ERR((CE_WARN, "%s: Invalid IOCTL cmd: %x\n",
45319397407SSherry Moore unitp->pcf8574_name, cmd));
4547c478bd9Sstevel@tonic-gate err = EINVAL;
4557c478bd9Sstevel@tonic-gate }
4567c478bd9Sstevel@tonic-gate
4577c478bd9Sstevel@tonic-gate mutex_exit(&unitp->pcf8574_mutex);
4587c478bd9Sstevel@tonic-gate return (err);
4597c478bd9Sstevel@tonic-gate }
4607c478bd9Sstevel@tonic-gate
4617c478bd9Sstevel@tonic-gate static int
pcf8574_attach(dev_info_t * dip,ddi_attach_cmd_t cmd)4627c478bd9Sstevel@tonic-gate pcf8574_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
4637c478bd9Sstevel@tonic-gate {
4647c478bd9Sstevel@tonic-gate switch (cmd) {
4657c478bd9Sstevel@tonic-gate case DDI_ATTACH:
4667c478bd9Sstevel@tonic-gate return (pcf8574_do_attach(dip));
4677c478bd9Sstevel@tonic-gate case DDI_RESUME:
4687c478bd9Sstevel@tonic-gate return (pcf8574_do_resume());
4697c478bd9Sstevel@tonic-gate default:
4707c478bd9Sstevel@tonic-gate return (DDI_FAILURE);
4717c478bd9Sstevel@tonic-gate }
4727c478bd9Sstevel@tonic-gate }
4737c478bd9Sstevel@tonic-gate
4747c478bd9Sstevel@tonic-gate static int
pcf8574_detach(dev_info_t * dip,ddi_detach_cmd_t cmd)4757c478bd9Sstevel@tonic-gate pcf8574_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
4767c478bd9Sstevel@tonic-gate {
4777c478bd9Sstevel@tonic-gate switch (cmd) {
4787c478bd9Sstevel@tonic-gate case DDI_DETACH:
4797c478bd9Sstevel@tonic-gate return (pcf8574_do_detach(dip));
4807c478bd9Sstevel@tonic-gate case DDI_SUSPEND:
4817c478bd9Sstevel@tonic-gate return (pcf8574_do_suspend());
4827c478bd9Sstevel@tonic-gate default:
4837c478bd9Sstevel@tonic-gate return (DDI_FAILURE);
4847c478bd9Sstevel@tonic-gate }
4857c478bd9Sstevel@tonic-gate }
4867c478bd9Sstevel@tonic-gate
4877c478bd9Sstevel@tonic-gate static int
pcf8574_do_attach(dev_info_t * dip)4887c478bd9Sstevel@tonic-gate pcf8574_do_attach(dev_info_t *dip)
4897c478bd9Sstevel@tonic-gate {
4907c478bd9Sstevel@tonic-gate struct pcf8574_unit *unitp;
4917c478bd9Sstevel@tonic-gate int instance;
4927c478bd9Sstevel@tonic-gate
4937c478bd9Sstevel@tonic-gate instance = ddi_get_instance(dip);
4947c478bd9Sstevel@tonic-gate
4957c478bd9Sstevel@tonic-gate if (ddi_soft_state_zalloc(pcf8574soft_statep, instance) != 0) {
4967c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d: failed to zalloc softstate\n",
49719397407SSherry Moore ddi_get_name(dip), instance);
4987c478bd9Sstevel@tonic-gate return (DDI_FAILURE);
4997c478bd9Sstevel@tonic-gate }
5007c478bd9Sstevel@tonic-gate
5017c478bd9Sstevel@tonic-gate unitp = ddi_get_soft_state(pcf8574soft_statep, instance);
5027c478bd9Sstevel@tonic-gate
5037c478bd9Sstevel@tonic-gate if (unitp == NULL) {
5047c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d: unitp not filled\n",
50519397407SSherry Moore ddi_get_name(dip), instance);
5067c478bd9Sstevel@tonic-gate return (ENOMEM);
5077c478bd9Sstevel@tonic-gate }
5087c478bd9Sstevel@tonic-gate
5097c478bd9Sstevel@tonic-gate (void) snprintf(unitp->pcf8574_name, sizeof (unitp->pcf8574_name),
51019397407SSherry Moore "%s%d", ddi_node_name(dip), instance);
5117c478bd9Sstevel@tonic-gate
5127c478bd9Sstevel@tonic-gate
5137c478bd9Sstevel@tonic-gate if (ddi_create_minor_node(dip, "pcf8574", S_IFCHR, instance,
514*52e32d38SToomas Soome "ddi_i2c:ioexp", 0) == DDI_FAILURE) {
5157c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s ddi_create_minor_node failed for "
51619397407SSherry Moore "%s\n", unitp->pcf8574_name, "pcf8574");
5177c478bd9Sstevel@tonic-gate ddi_soft_state_free(pcf8574soft_statep, instance);
5187c478bd9Sstevel@tonic-gate
5197c478bd9Sstevel@tonic-gate return (DDI_FAILURE);
5207c478bd9Sstevel@tonic-gate }
5217c478bd9Sstevel@tonic-gate
5227c478bd9Sstevel@tonic-gate if (i2c_client_register(dip, &unitp->pcf8574_hdl) != I2C_SUCCESS) {
5237c478bd9Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL);
5247c478bd9Sstevel@tonic-gate ddi_soft_state_free(pcf8574soft_statep, instance);
5257c478bd9Sstevel@tonic-gate
5267c478bd9Sstevel@tonic-gate return (DDI_FAILURE);
5277c478bd9Sstevel@tonic-gate }
5287c478bd9Sstevel@tonic-gate
5297c478bd9Sstevel@tonic-gate mutex_init(&unitp->pcf8574_mutex, NULL, MUTEX_DRIVER, NULL);
5307c478bd9Sstevel@tonic-gate
5317c478bd9Sstevel@tonic-gate return (DDI_SUCCESS);
5327c478bd9Sstevel@tonic-gate }
5337c478bd9Sstevel@tonic-gate
5347c478bd9Sstevel@tonic-gate static int
pcf8574_do_resume()5357c478bd9Sstevel@tonic-gate pcf8574_do_resume()
5367c478bd9Sstevel@tonic-gate {
5377c478bd9Sstevel@tonic-gate int ret = DDI_SUCCESS;
5387c478bd9Sstevel@tonic-gate
5397c478bd9Sstevel@tonic-gate return (ret);
5407c478bd9Sstevel@tonic-gate }
5417c478bd9Sstevel@tonic-gate
5427c478bd9Sstevel@tonic-gate static int
pcf8574_do_suspend()5437c478bd9Sstevel@tonic-gate pcf8574_do_suspend()
5447c478bd9Sstevel@tonic-gate {
5457c478bd9Sstevel@tonic-gate int ret = DDI_SUCCESS;
5467c478bd9Sstevel@tonic-gate
5477c478bd9Sstevel@tonic-gate return (ret);
5487c478bd9Sstevel@tonic-gate }
5497c478bd9Sstevel@tonic-gate
5507c478bd9Sstevel@tonic-gate static int
pcf8574_do_detach(dev_info_t * dip)5517c478bd9Sstevel@tonic-gate pcf8574_do_detach(dev_info_t *dip)
5527c478bd9Sstevel@tonic-gate {
5537c478bd9Sstevel@tonic-gate struct pcf8574_unit *unitp;
5547c478bd9Sstevel@tonic-gate int instance;
5557c478bd9Sstevel@tonic-gate
5567c478bd9Sstevel@tonic-gate instance = ddi_get_instance(dip);
5577c478bd9Sstevel@tonic-gate
5587c478bd9Sstevel@tonic-gate unitp = ddi_get_soft_state(pcf8574soft_statep, instance);
5597c478bd9Sstevel@tonic-gate
5607c478bd9Sstevel@tonic-gate if (unitp == NULL) {
5617c478bd9Sstevel@tonic-gate cmn_err(CE_WARN, "%s%d: unitp not filled\n",
56219397407SSherry Moore ddi_get_name(dip), instance);
5637c478bd9Sstevel@tonic-gate return (ENOMEM);
5647c478bd9Sstevel@tonic-gate }
5657c478bd9Sstevel@tonic-gate
5667c478bd9Sstevel@tonic-gate i2c_client_unregister(unitp->pcf8574_hdl);
5677c478bd9Sstevel@tonic-gate
5687c478bd9Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL);
5697c478bd9Sstevel@tonic-gate
5707c478bd9Sstevel@tonic-gate mutex_destroy(&unitp->pcf8574_mutex);
5717c478bd9Sstevel@tonic-gate
5727c478bd9Sstevel@tonic-gate ddi_soft_state_free(pcf8574soft_statep, instance);
5737c478bd9Sstevel@tonic-gate
5747c478bd9Sstevel@tonic-gate return (DDI_SUCCESS);
5757c478bd9Sstevel@tonic-gate
5767c478bd9Sstevel@tonic-gate }
577