smapi.c
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上传日期:2013-04-10
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- /*
- *
- * 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/version.h>
- #include <linux/kernel.h>
- #include <linux/mc146818rtc.h> /* CMOS defines */
- #include "smapi.h"
- #include "mwavedd.h"
- static unsigned short g_usSmapiPort = 0;
- 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 %xn",
- inBX, inCX, inDI, inSI);
- __asm__ __volatile__("movw $0x5380,%%axnt"
- "movl %7,%%ebxnt"
- "shrl $16, %%ebxnt"
- "movw %7,%%cxnt"
- "movl %8,%%edint"
- "shrl $16,%%edint"
- "movw %8,%%sint"
- "movw %9,%%dxnt"
- "out %%al,%%dxnt"
- "out %%al,$0x4Fnt"
- "cmpb $0x53,%%ahnt"
- "je 2fnt"
- "1:nt"
- "orb %%ah,%%ahnt"
- "jnz 2fnt"
- "movw %%ax,%0nt"
- "movw %%bx,%1nt"
- "movw %%cx,%2nt"
- "movw %%dx,%3nt"
- "movw %%di,%4nt"
- "movw %%si,%5nt"
- "movw $1,%6nt"
- "2:nt":"=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 %xn",
- 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 %xn", 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 entryn");
- 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 OKn");
- 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 %xn",
- 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 0n");
- if ( pSettings->usDspIRQ == 0 )
- PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP IRQ line is 0n");
- 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 OKn");
- 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 %xn",
- 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 0n");
- if ( pSettings->usUartIRQ == 0 )
- PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART IRQ line is 0n");
- PRINTK_2(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg exit bRC %xn", 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 %xn",
- 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 %xn", 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 %xn", usSI & 0xFF, mwave_uart_irq);
- #endif
- #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
- PRINTK_1(TRACE_SMAPI,
- "smapi::smapi_set_DSP_cfg Disabling conflicting serial portn");
- 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 %xn", 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 %xn", 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 An");
- 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 %xn", 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 %xn", 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 Bn");
- 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 %xn", 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 %xn", 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 Bn");
- 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 %xn", usCX & 0xff, mwave_uart_irq);
- #else
- PRINTK_3(TRACE_SMAPI,
- "smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %xn", usCX & 0xff, mwave_uart_irq);
- #endif
- #ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
- PRINTK_1(TRACE_SMAPI,
- "smapi::smapi_set_DSP_cfg Disabling conflicting IR portn");
- 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 %xn", 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 %xn", 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 portn");
- 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 exitn");
- 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 %xn", 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 %xn", 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 %xn", bRC);
- return bRC;
- }
- int SmapiQuerySystemID(void)
- {
- int bRC = -EIO;
- unsigned short usAX = 0xffff, usBX = 0xffff, usCX = 0xffff,
- usDX = 0xffff, usDI = 0xffff, usSI = 0xffff;
- printk("smapi::SmapiQUerySystemID entryn");
- 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=%xn",
- usAX, usBX, usCX, usDX, usDI, usSI);
- } else {
- printk("smapi::SmapiQuerySystemID smapi_request errorn");
- }
- return bRC;
- }
- int smapi_init(void)
- {
- int retval = -EIO;
- unsigned short usSmapiID = 0;
- unsigned long flags;
- PRINTK_1(TRACE_SMAPI, "smapi::smapi_init entryn");
- 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 %xn", 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 portn");
- } else {
- PRINTK_2(TRACE_SMAPI,
- "smapi::smapi_init, exit TRUE g_usSmapiPort %xn",
- g_usSmapiPort);
- retval = 0;
- //SmapiQuerySystemID();
- }
- } else {
- PRINTK_ERROR("smapi::smapi_init, ERROR invalid usSmapiIDn");
- retval = -ENXIO;
- }
- return retval;
- }