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-rw-r--r--drivers/char/mwave/smapi.c572
1 files changed, 572 insertions, 0 deletions
diff --git a/drivers/char/mwave/smapi.c b/drivers/char/mwave/smapi.c
new file mode 100644
index 000000000..f8d79d393
--- /dev/null
+++ b/drivers/char/mwave/smapi.c
@@ -0,0 +1,572 @@
+/*
+*
+* 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;
+ unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
+ static const unsigned short ausDspBases[] = {
+ 0x0030, 0x4E30, 0x8E30, 0xCE30,
+ 0x0130, 0x0350, 0x0070, 0x0DB0 };
+ static const unsigned short ausUartBases[] = {
+ 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
+
+ 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) < ARRAY_SIZE(ausDspBases)) {
+ 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) < ARRAY_SIZE(ausUartBases)) {
+ 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;
+ static const unsigned short ausDspBases[] = {
+ 0x0030, 0x4E30, 0x8E30, 0xCE30,
+ 0x0130, 0x0350, 0x0070, 0x0DB0 };
+ static const unsigned short ausUartBases[] = {
+ 0x03F8, 0x02F8, 0x03E8, 0x02E8 };
+ static const unsigned short ausDspIrqs[] = {
+ 5, 7, 10, 11, 15 };
+ static const unsigned short ausUartIrqs[] = {
+ 3, 4 };
+
+ 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 < ARRAY_SIZE(ausDspBases); i++) {
+ if (mwave_3780i_io == ausDspBases[i])
+ break;
+ }
+ if (i == ARRAY_SIZE(ausDspBases)) {
+ 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 < ARRAY_SIZE(ausDspIrqs); i++) {
+ if (mwave_3780i_irq == ausDspIrqs[i])
+ break;
+ }
+ if (i == ARRAY_SIZE(ausDspIrqs)) {
+ 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 < ARRAY_SIZE(ausUartBases); i++) {
+ if (mwave_uart_io == ausUartBases[i])
+ break;
+ }
+ if (i == ARRAY_SIZE(ausUartBases)) {
+ 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 < ARRAY_SIZE(ausUartIrqs); i++) {
+ if (mwave_uart_irq == ausUartIrqs[i])
+ break;
+ }
+ if (i == ARRAY_SIZE(ausUartIrqs)) {
+ 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(bool bOn)
+{
+ int bRC;
+ 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 09:00:03 +0000