drivers/char/mwave/smapi.c - arm/linux-arm64-legacy - Git at Google

 /*
 *
 * smapi.c -- SMAPI interface routines
 *
 *
 * Written By: Mike Sullivan IBM Corporation
 *
 * Copyright (C) 1999 IBM Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * NO WARRANTY
 * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
 * solely responsible for determining the appropriateness of using and
 * distributing the Program and assumes all risks associated with its
 * exercise of rights under this Agreement, including but not limited to
 * the risks and costs of program errors, damage to or loss of data,
 * programs or equipment, and unavailability or interruption of operations.
 *
 * DISCLAIMER OF LIABILITY
 * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
 * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *
 * 10/23/2000 - Alpha Release
 *	First release to the public
 */

 #include <linux/kernel.h>
 #include <linux/mc146818rtc.h>	/* CMOS defines */
 #include "smapi.h"
 #include "mwavedd.h"

 static unsigned short g_usSmapiPort = 0;


 static int smapi_request(unsigned short inBX, unsigned short inCX,
 			 unsigned short inDI, unsigned short inSI,
 			 unsigned short *outAX, unsigned short *outBX,
 			 unsigned short *outCX, unsigned short *outDX,
 			 unsigned short *outDI, unsigned short *outSI)
 {
 	unsigned short myoutAX = 2, *pmyoutAX = &myoutAX;
 	unsigned short myoutBX = 3, *pmyoutBX = &myoutBX;
 	unsigned short myoutCX = 4, *pmyoutCX = &myoutCX;
 	unsigned short myoutDX = 5, *pmyoutDX = &myoutDX;
 	unsigned short myoutDI = 6, *pmyoutDI = &myoutDI;
 	unsigned short myoutSI = 7, *pmyoutSI = &myoutSI;
 	unsigned short usSmapiOK = -EIO, *pusSmapiOK = &usSmapiOK;
 	unsigned int inBXCX = (inBX << 16) | inCX;
 	unsigned int inDISI = (inDI << 16) | inSI;
 	int retval = 0;

 	PRINTK_5(TRACE_SMAPI, "inBX %x inCX %x inDI %x inSI %x\n",
 		inBX, inCX, inDI, inSI);

 	__asm__ __volatile__("movw  $0x5380,%%ax\n\t"
 			    "movl  %7,%%ebx\n\t"
 			    "shrl  $16, %%ebx\n\t"
 			    "movw  %7,%%cx\n\t"
 			    "movl  %8,%%edi\n\t"
 			    "shrl  $16,%%edi\n\t"
 			    "movw  %8,%%si\n\t"
 			    "movw  %9,%%dx\n\t"
 			    "out   %%al,%%dx\n\t"
 			    "out   %%al,$0x4F\n\t"
 			    "cmpb  $0x53,%%ah\n\t"
 			    "je    2f\n\t"
 			    "1:\n\t"
 			    "orb   %%ah,%%ah\n\t"
 			    "jnz   2f\n\t"
 			    "movw  %%ax,%0\n\t"
 			    "movw  %%bx,%1\n\t"
 			    "movw  %%cx,%2\n\t"
 			    "movw  %%dx,%3\n\t"
 			    "movw  %%di,%4\n\t"
 			    "movw  %%si,%5\n\t"
 			    "movw  $1,%6\n\t"
 			    "2:\n\t":"=m"(*(unsigned short *) pmyoutAX),
 			    "=m"(*(unsigned short *) pmyoutBX),
 			    "=m"(*(unsigned short *) pmyoutCX),
 			    "=m"(*(unsigned short *) pmyoutDX),
 			    "=m"(*(unsigned short *) pmyoutDI),
 			    "=m"(*(unsigned short *) pmyoutSI),
 			    "=m"(*(unsigned short *) pusSmapiOK)
 			    :"m"(inBXCX), "m"(inDISI), "m"(g_usSmapiPort)
 			    :"%eax", "%ebx", "%ecx", "%edx", "%edi",
 			    "%esi");

 	PRINTK_8(TRACE_SMAPI,
 		"myoutAX %x myoutBX %x myoutCX %x myoutDX %x myoutDI %x myoutSI %x usSmapiOK %x\n",
 		myoutAX, myoutBX, myoutCX, myoutDX, myoutDI, myoutSI,
 		usSmapiOK);
 	*outAX = myoutAX;
 	*outBX = myoutBX;
 	*outCX = myoutCX;
 	*outDX = myoutDX;
 	*outDI = myoutDI;
 	*outSI = myoutSI;

 	retval = (usSmapiOK == 1) ? 0 : -EIO;
 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_request exit retval %x\n", retval);
 	return retval;
 }


 int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)
 {
 	int bRC = -EIO;
 	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
 	unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
 	unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
 	unsigned short numDspBases = 8;
 	unsigned short numUartBases = 4;

 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg entry\n");

 	bRC = smapi_request(0x1802, 0x0000, 0, 0,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) {
 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Error: Could not get DSP Settings. Aborting.\n");
 		return bRC;
 	}

 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");

 	pSettings->bDSPPresent = ((usBX & 0x0100) != 0);
 	pSettings->bDSPEnabled = ((usCX & 0x0001) != 0);
 	pSettings->usDspIRQ = usSI & 0x00FF;
 	pSettings->usDspDMA = (usSI & 0xFF00) >> 8;
 	if ((usDI & 0x00FF) < numDspBases) {
 		pSettings->usDspBaseIO = ausDspBases[usDI & 0x00FF];
 	} else {
 		pSettings->usDspBaseIO = 0;
 	}
 	PRINTK_6(TRACE_SMAPI,
 		"smapi::smapi_query_DSP_cfg get DSP Settings bDSPPresent %x bDSPEnabled %x usDspIRQ %x usDspDMA %x usDspBaseIO %x\n",
 		pSettings->bDSPPresent, pSettings->bDSPEnabled,
 		pSettings->usDspIRQ, pSettings->usDspDMA,
 		pSettings->usDspBaseIO);

 	/* check for illegal values */
 	if ( pSettings->usDspBaseIO == 0 )
 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP base I/O address is 0\n");
 	if ( pSettings->usDspIRQ == 0 )
 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP IRQ line is 0\n");

 	bRC = smapi_request(0x1804, 0x0000, 0, 0,
 	   	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) {
 		PRINTK_ERROR("smapi::smapi_query_DSP_cfg: Error: Could not get DSP modem settings. Aborting.\n");
 		return bRC;
 	}

 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");

 	pSettings->bModemEnabled = ((usCX & 0x0001) != 0);
 	pSettings->usUartIRQ = usSI & 0x000F;
 	if (((usSI & 0xFF00) >> 8) < numUartBases) {
 		pSettings->usUartBaseIO = ausUartBases[(usSI & 0xFF00) >> 8];
 	} else {
 		pSettings->usUartBaseIO = 0;
 	}

 	PRINTK_4(TRACE_SMAPI,
 		"smapi::smapi_query_DSP_cfg get DSP modem settings bModemEnabled %x usUartIRQ %x usUartBaseIO %x\n",
 		pSettings->bModemEnabled,
 		pSettings->usUartIRQ,
 		pSettings->usUartBaseIO);

 	/* check for illegal values */
 	if ( pSettings->usUartBaseIO == 0 )
 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART base I/O address is 0\n");
 	if ( pSettings->usUartIRQ == 0 )
 		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART IRQ line is 0\n");

 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg exit bRC %x\n", bRC);

 	return bRC;
 }


 int smapi_set_DSP_cfg(void)
 {
 	int bRC = -EIO;
 	int i;
 	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
 	unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
 	unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
 	unsigned short ausDspIrqs[] = { 5, 7, 10, 11, 15 };
 	unsigned short ausUartIrqs[] = { 3, 4 };

 	unsigned short numDspBases = 8;
 	unsigned short numUartBases = 4;
 	unsigned short numDspIrqs = 5;
 	unsigned short numUartIrqs = 2;
 	unsigned short dspio_index = 0, uartio_index = 0;

 	PRINTK_5(TRACE_SMAPI,
 		"smapi::smapi_set_DSP_cfg entry mwave_3780i_irq %x mwave_3780i_io %x mwave_uart_irq %x mwave_uart_io %x\n",
 		mwave_3780i_irq, mwave_3780i_io, mwave_uart_irq, mwave_uart_io);

 	if (mwave_3780i_io) {
 		for (i = 0; i < numDspBases; i++) {
 			if (mwave_3780i_io == ausDspBases[i])
 				break;
 		}
 		if (i == numDspBases) {
 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_io address %x. Aborting.\n", mwave_3780i_io);
 			return bRC;
 		}
 		dspio_index = i;
 	}

 	if (mwave_3780i_irq) {
 		for (i = 0; i < numDspIrqs; i++) {
 			if (mwave_3780i_irq == ausDspIrqs[i])
 				break;
 		}
 		if (i == numDspIrqs) {
 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_irq %x. Aborting.\n", mwave_3780i_irq);
 			return bRC;
 		}
 	}

 	if (mwave_uart_io) {
 		for (i = 0; i < numUartBases; i++) {
 			if (mwave_uart_io == ausUartBases[i])
 				break;
 		}
 		if (i == numUartBases) {
 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_io address %x. Aborting.\n", mwave_uart_io);
 			return bRC;
 		}
 		uartio_index = i;
 	}


 	if (mwave_uart_irq) {
 		for (i = 0; i < numUartIrqs; i++) {
 			if (mwave_uart_irq == ausUartIrqs[i])
 				break;
 		}
 		if (i == numUartIrqs) {
 			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_irq %x. Aborting.\n", mwave_uart_irq);
 			return bRC;
 		}
 	}

 	if (mwave_uart_irq || mwave_uart_io) {

 		/* Check serial port A */
 		bRC = smapi_request(0x1402, 0x0000, 0, 0,
 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 		if (bRC) goto exit_smapi_request_error;
 		/* bRC == 0 */
 		if (usBX & 0x0100) {	/* serial port A is present */
 			if (usCX & 1) {	/* serial port is enabled */
 				if ((usSI & 0xFF) == mwave_uart_irq) {
 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
 					PRINTK_ERROR(KERN_ERR_MWAVE
 						"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
 #else
 					PRINTK_3(TRACE_SMAPI,
 						"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
 #endif
 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
 					PRINTK_1(TRACE_SMAPI,
 						"smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n");
 					bRC = smapi_request(0x1403, 0x0100, 0, usSI,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 					bRC = smapi_request(0x1402, 0x0000, 0, 0,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 #else
 					goto exit_conflict;
 #endif
 				} else {
 					if ((usSI >> 8) == uartio_index) {
 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
 						PRINTK_ERROR(KERN_ERR_MWAVE
 							"smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
 #else
 						PRINTK_3(TRACE_SMAPI,
 							"smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
 #endif
 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
 						PRINTK_1(TRACE_SMAPI,
 							"smapi::smapi_set_DSP_cfg Disabling conflicting serial port A\n");
 						bRC = smapi_request (0x1403, 0x0100, 0, usSI,
 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 						if (bRC) goto exit_smapi_request_error;
 						bRC = smapi_request (0x1402, 0x0000, 0, 0,
 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 						if (bRC) goto exit_smapi_request_error;
 #else
 						goto exit_conflict;
 #endif
 					}
 				}
 			}
 		}

 		/* Check serial port B */
 		bRC = smapi_request(0x1404, 0x0000, 0, 0,
 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 		if (bRC) goto exit_smapi_request_error;
 		/* bRC == 0 */
 		if (usBX & 0x0100) {	/* serial port B is present */
 			if (usCX & 1) {	/* serial port is enabled */
 				if ((usSI & 0xFF) == mwave_uart_irq) {
 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
 					PRINTK_ERROR(KERN_ERR_MWAVE
 						"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
 #else
 					PRINTK_3(TRACE_SMAPI,
 						"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
 #endif
 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
 					PRINTK_1(TRACE_SMAPI,
 						"smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
 					bRC = smapi_request(0x1405, 0x0100, 0, usSI,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 					bRC = smapi_request(0x1404, 0x0000, 0, 0,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 #else
 					goto exit_conflict;
 #endif
 				} else {
 					if ((usSI >> 8) == uartio_index) {
 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
 						PRINTK_ERROR(KERN_ERR_MWAVE
 							"smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
 #else
 						PRINTK_3(TRACE_SMAPI,
 							"smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
 #endif
 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
 						PRINTK_1 (TRACE_SMAPI,
 						    "smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
 						bRC = smapi_request (0x1405, 0x0100, 0, usSI,
 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 						if (bRC) goto exit_smapi_request_error;
 						bRC = smapi_request (0x1404, 0x0000, 0, 0,
 							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 						if (bRC) goto exit_smapi_request_error;
 #else
 						goto exit_conflict;
 #endif
 					}
 				}
 			}
 		}

 		/* Check IR port */
 		bRC = smapi_request(0x1700, 0x0000, 0, 0,
 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 		if (bRC) goto exit_smapi_request_error;
 		bRC = smapi_request(0x1704, 0x0000, 0, 0,
 			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 		if (bRC) goto exit_smapi_request_error;
 		/* bRC == 0 */
 		if ((usCX & 0xff) != 0xff) { /* IR port not disabled */
 			if ((usCX & 0xff) == mwave_uart_irq) {
 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
 				PRINTK_ERROR(KERN_ERR_MWAVE
 					"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
 #else
 				PRINTK_3(TRACE_SMAPI,
 					"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
 #endif
 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
 				PRINTK_1(TRACE_SMAPI,
 					"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
 				bRC = smapi_request(0x1701, 0x0100, 0, 0,
 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 				if (bRC) goto exit_smapi_request_error;
 				bRC = smapi_request(0x1700, 0, 0, 0,
 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 				if (bRC) goto exit_smapi_request_error;
 				bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 				if (bRC) goto exit_smapi_request_error;
 				bRC = smapi_request(0x1704, 0x0000, 0, 0,
 					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 				if (bRC) goto exit_smapi_request_error;
 #else
 				goto exit_conflict;
 #endif
 			} else {
 				if ((usSI & 0xff) == uartio_index) {
 #ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
 					PRINTK_ERROR(KERN_ERR_MWAVE
 						"smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
 #else
 					PRINTK_3(TRACE_SMAPI,
 						"smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
 #endif
 #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
 					PRINTK_1(TRACE_SMAPI,
 						"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
 					bRC = smapi_request(0x1701, 0x0100, 0, 0,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 					bRC = smapi_request(0x1700, 0, 0, 0,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 					bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 					bRC = smapi_request(0x1704, 0x0000, 0, 0,
 						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 					if (bRC) goto exit_smapi_request_error;
 #else
 					goto exit_conflict;
 #endif
 				}
 			}
 		}
 	}

 	bRC = smapi_request(0x1802, 0x0000, 0, 0,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) goto exit_smapi_request_error;

 	if (mwave_3780i_io) {
 		usDI = dspio_index;
 	}
 	if (mwave_3780i_irq) {
 		usSI = (usSI & 0xff00) | mwave_3780i_irq;
 	}

 	bRC = smapi_request(0x1803, 0x0101, usDI, usSI,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) goto exit_smapi_request_error;

 	bRC = smapi_request(0x1804, 0x0000, 0, 0,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) goto exit_smapi_request_error;

 	if (mwave_uart_io) {
 		usSI = (usSI & 0x00ff) | (uartio_index << 8);
 	}
 	if (mwave_uart_irq) {
 		usSI = (usSI & 0xff00) | mwave_uart_irq;
 	}
 	bRC = smapi_request(0x1805, 0x0101, 0, usSI,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) goto exit_smapi_request_error;

 	bRC = smapi_request(0x1802, 0x0000, 0, 0,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) goto exit_smapi_request_error;

 	bRC = smapi_request(0x1804, 0x0000, 0, 0,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
 	if (bRC) goto exit_smapi_request_error;

 /* normal exit: */
 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg exit\n");
 	return 0;

 exit_conflict:
 	/* Message has already been printed */
 	return -EIO;

 exit_smapi_request_error:
 	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg exit on smapi_request error bRC %x\n", bRC);
 	return bRC;
 }


 int smapi_set_DSP_power_state(BOOLEAN bOn)
 {
 	int bRC = -EIO;
 	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
 	unsigned short usPowerFunction;

 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state entry bOn %x\n", bOn);

 	usPowerFunction = (bOn) ? 1 : 0;

 	bRC = smapi_request(0x4901, 0x0000, 0, usPowerFunction,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);

 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state exit bRC %x\n", bRC);

 	return bRC;
 }

 #if 0
 static int SmapiQuerySystemID(void)
 {
 	int bRC = -EIO;
 	unsigned short usAX = 0xffff, usBX = 0xffff, usCX = 0xffff,
 		usDX = 0xffff, usDI = 0xffff, usSI = 0xffff;

 	printk("smapi::SmapiQUerySystemID entry\n");
 	bRC = smapi_request(0x0000, 0, 0, 0,
 		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);

 	if (bRC == 0) {
 		printk("AX=%x, BX=%x, CX=%x, DX=%x, DI=%x, SI=%x\n",
 			usAX, usBX, usCX, usDX, usDI, usSI);
 	} else {
 		printk("smapi::SmapiQuerySystemID smapi_request error\n");
 	}

 	return bRC;
 }
 #endif  /*  0  */

 int smapi_init(void)
 {
 	int retval = -EIO;
 	unsigned short usSmapiID = 0;
 	unsigned long flags;

 	PRINTK_1(TRACE_SMAPI, "smapi::smapi_init entry\n");

 	spin_lock_irqsave(&rtc_lock, flags);
 	usSmapiID = CMOS_READ(0x7C);
 	usSmapiID |= (CMOS_READ(0x7D) << 8);
 	spin_unlock_irqrestore(&rtc_lock, flags);
 	PRINTK_2(TRACE_SMAPI, "smapi::smapi_init usSmapiID %x\n", usSmapiID);

 	if (usSmapiID == 0x5349) {
 		spin_lock_irqsave(&rtc_lock, flags);
 		g_usSmapiPort = CMOS_READ(0x7E);
 		g_usSmapiPort |= (CMOS_READ(0x7F) << 8);
 		spin_unlock_irqrestore(&rtc_lock, flags);
 		if (g_usSmapiPort == 0) {
 			PRINTK_ERROR("smapi::smapi_init, ERROR unable to read from SMAPI port\n");
 		} else {
 			PRINTK_2(TRACE_SMAPI,
 				"smapi::smapi_init, exit TRUE g_usSmapiPort %x\n",
 				g_usSmapiPort);
 			retval = 0;
 			//SmapiQuerySystemID();
 		}
 	} else {
 		PRINTK_ERROR("smapi::smapi_init, ERROR invalid usSmapiID\n");
 		retval = -ENXIO;
 	}

 	return retval;
 }
	/*
	*
	* smapi.c -- SMAPI interface routines
	*
	*
	* Written By: Mike Sullivan IBM Corporation
	*
	* Copyright (C) 1999 IBM Corporation
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* NO WARRANTY
	* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
	* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
	* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
	* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
	* solely responsible for determining the appropriateness of using and
	* distributing the Program and assumes all risks associated with its
	* exercise of rights under this Agreement, including but not limited to
	* the risks and costs of program errors, damage to or loss of data,
	* programs or equipment, and unavailability or interruption of operations.
	*
	* DISCLAIMER OF LIABILITY
	* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
	* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
	* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
	* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	*
	* 10/23/2000 - Alpha Release
	* First release to the public
	*/

	#include <linux/kernel.h>
	#include <linux/mc146818rtc.h> /* CMOS defines */
	#include "smapi.h"
	#include "mwavedd.h"

	static unsigned short g_usSmapiPort = 0;


	static int smapi_request(unsigned short inBX, unsigned short inCX,
	unsigned short inDI, unsigned short inSI,
	unsigned short outAX, unsigned short outBX,
	unsigned short outCX, unsigned short outDX,
	unsigned short outDI, unsigned short outSI)
	{
	unsigned short myoutAX = 2, *pmyoutAX = &myoutAX;
	unsigned short myoutBX = 3, *pmyoutBX = &myoutBX;
	unsigned short myoutCX = 4, *pmyoutCX = &myoutCX;
	unsigned short myoutDX = 5, *pmyoutDX = &myoutDX;
	unsigned short myoutDI = 6, *pmyoutDI = &myoutDI;
	unsigned short myoutSI = 7, *pmyoutSI = &myoutSI;
	unsigned short usSmapiOK = -EIO, *pusSmapiOK = &usSmapiOK;
	unsigned int inBXCX = (inBX << 16) \| inCX;
	unsigned int inDISI = (inDI << 16) \| inSI;
	int retval = 0;

	PRINTK_5(TRACE_SMAPI, "inBX %x inCX %x inDI %x inSI %x\n",
	inBX, inCX, inDI, inSI);

	__asm__ __volatile__("movw $0x5380,%%ax\n\t"
	"movl %7,%%ebx\n\t"
	"shrl $16, %%ebx\n\t"
	"movw %7,%%cx\n\t"
	"movl %8,%%edi\n\t"
	"shrl $16,%%edi\n\t"
	"movw %8,%%si\n\t"
	"movw %9,%%dx\n\t"
	"out %%al,%%dx\n\t"
	"out %%al,$0x4F\n\t"
	"cmpb $0x53,%%ah\n\t"
	"je 2f\n\t"
	"1:\n\t"
	"orb %%ah,%%ah\n\t"
	"jnz 2f\n\t"
	"movw %%ax,%0\n\t"
	"movw %%bx,%1\n\t"
	"movw %%cx,%2\n\t"
	"movw %%dx,%3\n\t"
	"movw %%di,%4\n\t"
	"movw %%si,%5\n\t"
	"movw $1,%6\n\t"
	"2:\n\t":"=m"((unsigned short ) pmyoutAX),
	"=m"((unsigned short ) pmyoutBX),
	"=m"((unsigned short ) pmyoutCX),
	"=m"((unsigned short ) pmyoutDX),
	"=m"((unsigned short ) pmyoutDI),
	"=m"((unsigned short ) pmyoutSI),
	"=m"((unsigned short ) pusSmapiOK)
	:"m"(inBXCX), "m"(inDISI), "m"(g_usSmapiPort)
	:"%eax", "%ebx", "%ecx", "%edx", "%edi",
	"%esi");

	PRINTK_8(TRACE_SMAPI,
	"myoutAX %x myoutBX %x myoutCX %x myoutDX %x myoutDI %x myoutSI %x usSmapiOK %x\n",
	myoutAX, myoutBX, myoutCX, myoutDX, myoutDI, myoutSI,
	usSmapiOK);
	*outAX = myoutAX;
	*outBX = myoutBX;
	*outCX = myoutCX;
	*outDX = myoutDX;
	*outDI = myoutDI;
	*outSI = myoutSI;

	retval = (usSmapiOK == 1) ? 0 : -EIO;
	PRINTK_2(TRACE_SMAPI, "smapi::smapi_request exit retval %x\n", retval);
	return retval;
	}


	int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)
	{
	int bRC = -EIO;
	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
	unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
	unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
	unsigned short numDspBases = 8;
	unsigned short numUartBases = 4;

	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg entry\n");

	bRC = smapi_request(0x1802, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) {
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Error: Could not get DSP Settings. Aborting.\n");
	return bRC;
	}

	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");

	pSettings->bDSPPresent = ((usBX & 0x0100) != 0);
	pSettings->bDSPEnabled = ((usCX & 0x0001) != 0);
	pSettings->usDspIRQ = usSI & 0x00FF;
	pSettings->usDspDMA = (usSI & 0xFF00) >> 8;
	if ((usDI & 0x00FF) < numDspBases) {
	pSettings->usDspBaseIO = ausDspBases[usDI & 0x00FF];
	} else {
	pSettings->usDspBaseIO = 0;
	}
	PRINTK_6(TRACE_SMAPI,
	"smapi::smapi_query_DSP_cfg get DSP Settings bDSPPresent %x bDSPEnabled %x usDspIRQ %x usDspDMA %x usDspBaseIO %x\n",
	pSettings->bDSPPresent, pSettings->bDSPEnabled,
	pSettings->usDspIRQ, pSettings->usDspDMA,
	pSettings->usDspBaseIO);

	/* check for illegal values */
	if ( pSettings->usDspBaseIO == 0 )
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP base I/O address is 0\n");
	if ( pSettings->usDspIRQ == 0 )
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP IRQ line is 0\n");

	bRC = smapi_request(0x1804, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) {
	PRINTK_ERROR("smapi::smapi_query_DSP_cfg: Error: Could not get DSP modem settings. Aborting.\n");
	return bRC;
	}

	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");

	pSettings->bModemEnabled = ((usCX & 0x0001) != 0);
	pSettings->usUartIRQ = usSI & 0x000F;
	if (((usSI & 0xFF00) >> 8) < numUartBases) {
	pSettings->usUartBaseIO = ausUartBases[(usSI & 0xFF00) >> 8];
	} else {
	pSettings->usUartBaseIO = 0;
	}

	PRINTK_4(TRACE_SMAPI,
	"smapi::smapi_query_DSP_cfg get DSP modem settings bModemEnabled %x usUartIRQ %x usUartBaseIO %x\n",
	pSettings->bModemEnabled,
	pSettings->usUartIRQ,
	pSettings->usUartBaseIO);

	/* check for illegal values */
	if ( pSettings->usUartBaseIO == 0 )
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART base I/O address is 0\n");
	if ( pSettings->usUartIRQ == 0 )
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART IRQ line is 0\n");

	PRINTK_2(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg exit bRC %x\n", bRC);

	return bRC;
	}


	int smapi_set_DSP_cfg(void)
	{
	int bRC = -EIO;
	int i;
	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
	unsigned short ausDspBases[] = { 0x0030, 0x4E30, 0x8E30, 0xCE30, 0x0130, 0x0350, 0x0070, 0x0DB0 };
	unsigned short ausUartBases[] = { 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
	unsigned short ausDspIrqs[] = { 5, 7, 10, 11, 15 };
	unsigned short ausUartIrqs[] = { 3, 4 };

	unsigned short numDspBases = 8;
	unsigned short numUartBases = 4;
	unsigned short numDspIrqs = 5;
	unsigned short numUartIrqs = 2;
	unsigned short dspio_index = 0, uartio_index = 0;

	PRINTK_5(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg entry mwave_3780i_irq %x mwave_3780i_io %x mwave_uart_irq %x mwave_uart_io %x\n",
	mwave_3780i_irq, mwave_3780i_io, mwave_uart_irq, mwave_uart_io);

	if (mwave_3780i_io) {
	for (i = 0; i < numDspBases; i++) {
	if (mwave_3780i_io == ausDspBases[i])
	break;
	}
	if (i == numDspBases) {
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_io address %x. Aborting.\n", mwave_3780i_io);
	return bRC;
	}
	dspio_index = i;
	}

	if (mwave_3780i_irq) {
	for (i = 0; i < numDspIrqs; i++) {
	if (mwave_3780i_irq == ausDspIrqs[i])
	break;
	}
	if (i == numDspIrqs) {
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_irq %x. Aborting.\n", mwave_3780i_irq);
	return bRC;
	}
	}

	if (mwave_uart_io) {
	for (i = 0; i < numUartBases; i++) {
	if (mwave_uart_io == ausUartBases[i])
	break;
	}
	if (i == numUartBases) {
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_io address %x. Aborting.\n", mwave_uart_io);
	return bRC;
	}
	uartio_index = i;
	}


	if (mwave_uart_irq) {
	for (i = 0; i < numUartIrqs; i++) {
	if (mwave_uart_irq == ausUartIrqs[i])
	break;
	}
	if (i == numUartIrqs) {
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_irq %x. Aborting.\n", mwave_uart_irq);
	return bRC;
	}
	}

	if (mwave_uart_irq \|\| mwave_uart_io) {

	/* Check serial port A */
	bRC = smapi_request(0x1402, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	/* bRC == 0 */
	if (usBX & 0x0100) { /* serial port A is present */
	if (usCX & 1) { /* serial port is enabled */
	if ((usSI & 0xFF) == mwave_uart_irq) {
	#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_ERROR(KERN_ERR_MWAVE
	"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
	#else
	PRINTK_3(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
	#endif
	#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_1(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n");
	bRC = smapi_request(0x1403, 0x0100, 0, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1402, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	#else
	goto exit_conflict;
	#endif
	} else {
	if ((usSI >> 8) == uartio_index) {
	#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_ERROR(KERN_ERR_MWAVE
	"smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
	#else
	PRINTK_3(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
	#endif
	#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_1(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg Disabling conflicting serial port A\n");
	bRC = smapi_request (0x1403, 0x0100, 0, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request (0x1402, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	#else
	goto exit_conflict;
	#endif
	}
	}
	}
	}

	/* Check serial port B */
	bRC = smapi_request(0x1404, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	/* bRC == 0 */
	if (usBX & 0x0100) { /* serial port B is present */
	if (usCX & 1) { /* serial port is enabled */
	if ((usSI & 0xFF) == mwave_uart_irq) {
	#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_ERROR(KERN_ERR_MWAVE
	"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
	#else
	PRINTK_3(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
	#endif
	#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_1(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
	bRC = smapi_request(0x1405, 0x0100, 0, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1404, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	#else
	goto exit_conflict;
	#endif
	} else {
	if ((usSI >> 8) == uartio_index) {
	#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_ERROR(KERN_ERR_MWAVE
	"smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
	#else
	PRINTK_3(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
	#endif
	#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_1 (TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
	bRC = smapi_request (0x1405, 0x0100, 0, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request (0x1404, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	#else
	goto exit_conflict;
	#endif
	}
	}
	}
	}

	/* Check IR port */
	bRC = smapi_request(0x1700, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1704, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	/* bRC == 0 */
	if ((usCX & 0xff) != 0xff) { /* IR port not disabled */
	if ((usCX & 0xff) == mwave_uart_irq) {
	#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_ERROR(KERN_ERR_MWAVE
	"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
	#else
	PRINTK_3(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
	#endif
	#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_1(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
	bRC = smapi_request(0x1701, 0x0100, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1700, 0, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1704, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	#else
	goto exit_conflict;
	#endif
	} else {
	if ((usSI & 0xff) == uartio_index) {
	#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_ERROR(KERN_ERR_MWAVE
	"smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
	#else
	PRINTK_3(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
	#endif
	#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
	PRINTK_1(TRACE_SMAPI,
	"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
	bRC = smapi_request(0x1701, 0x0100, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1700, 0, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	bRC = smapi_request(0x1704, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;
	#else
	goto exit_conflict;
	#endif
	}
	}
	}
	}

	bRC = smapi_request(0x1802, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;

	if (mwave_3780i_io) {
	usDI = dspio_index;
	}
	if (mwave_3780i_irq) {
	usSI = (usSI & 0xff00) \| mwave_3780i_irq;
	}

	bRC = smapi_request(0x1803, 0x0101, usDI, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;

	bRC = smapi_request(0x1804, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;

	if (mwave_uart_io) {
	usSI = (usSI & 0x00ff) \| (uartio_index << 8);
	}
	if (mwave_uart_irq) {
	usSI = (usSI & 0xff00) \| mwave_uart_irq;
	}
	bRC = smapi_request(0x1805, 0x0101, 0, usSI,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;

	bRC = smapi_request(0x1802, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;

	bRC = smapi_request(0x1804, 0x0000, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
	if (bRC) goto exit_smapi_request_error;

	/* normal exit: */
	PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg exit\n");
	return 0;

	exit_conflict:
	/* Message has already been printed */
	return -EIO;

	exit_smapi_request_error:
	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg exit on smapi_request error bRC %x\n", bRC);
	return bRC;
	}


	int smapi_set_DSP_power_state(BOOLEAN bOn)
	{
	int bRC = -EIO;
	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
	unsigned short usPowerFunction;

	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state entry bOn %x\n", bOn);

	usPowerFunction = (bOn) ? 1 : 0;

	bRC = smapi_request(0x4901, 0x0000, 0, usPowerFunction,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);

	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state exit bRC %x\n", bRC);

	return bRC;
	}

	#if 0
	static int SmapiQuerySystemID(void)
	{
	int bRC = -EIO;
	unsigned short usAX = 0xffff, usBX = 0xffff, usCX = 0xffff,
	usDX = 0xffff, usDI = 0xffff, usSI = 0xffff;

	printk("smapi::SmapiQUerySystemID entry\n");
	bRC = smapi_request(0x0000, 0, 0, 0,
	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);

	if (bRC == 0) {
	printk("AX=%x, BX=%x, CX=%x, DX=%x, DI=%x, SI=%x\n",
	usAX, usBX, usCX, usDX, usDI, usSI);
	} else {
	printk("smapi::SmapiQuerySystemID smapi_request error\n");
	}

	return bRC;
	}
	#endif /* 0 */

	int smapi_init(void)
	{
	int retval = -EIO;
	unsigned short usSmapiID = 0;
	unsigned long flags;

	PRINTK_1(TRACE_SMAPI, "smapi::smapi_init entry\n");

	spin_lock_irqsave(&rtc_lock, flags);
	usSmapiID = CMOS_READ(0x7C);
	usSmapiID \|= (CMOS_READ(0x7D) << 8);
	spin_unlock_irqrestore(&rtc_lock, flags);
	PRINTK_2(TRACE_SMAPI, "smapi::smapi_init usSmapiID %x\n", usSmapiID);

	if (usSmapiID == 0x5349) {
	spin_lock_irqsave(&rtc_lock, flags);
	g_usSmapiPort = CMOS_READ(0x7E);
	g_usSmapiPort \|= (CMOS_READ(0x7F) << 8);
	spin_unlock_irqrestore(&rtc_lock, flags);
	if (g_usSmapiPort == 0) {
	PRINTK_ERROR("smapi::smapi_init, ERROR unable to read from SMAPI port\n");
	} else {
	PRINTK_2(TRACE_SMAPI,
	"smapi::smapi_init, exit TRUE g_usSmapiPort %x\n",
	g_usSmapiPort);
	retval = 0;
	//SmapiQuerySystemID();
	}
	} else {
	PRINTK_ERROR("smapi::smapi_init, ERROR invalid usSmapiID\n");
	retval = -ENXIO;
	}

	return retval;
	}