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Diffstat (limited to 'xorg-server/hw/xfree86/i2c/msp3430.c')
-rw-r--r--xorg-server/hw/xfree86/i2c/msp3430.c779
1 files changed, 0 insertions, 779 deletions
diff --git a/xorg-server/hw/xfree86/i2c/msp3430.c b/xorg-server/hw/xfree86/i2c/msp3430.c
deleted file mode 100644
index a501489ee..000000000
--- a/xorg-server/hw/xfree86/i2c/msp3430.c
+++ /dev/null
@@ -1,779 +0,0 @@
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <string.h>
-#include <unistd.h>
-
-#include "xf86.h"
-#include "xf86i2c.h"
-#include "msp3430.h"
-#include "i2c_def.h"
-
-#define CONTROL 0x00
-#define WR_DEM 0x10
-#define RD_DEM 0x11
-#define WR_DSP 0x12
-#define RD_DSP 0x13
-
-void InitMSP34xxG(MSP3430Ptr m);
-void InitMSP34x5D(MSP3430Ptr m);
-void CheckModeMSP34x5D(MSP3430Ptr m);
-static const char *MSP_getProductName(CARD16 product_id);
-void mpause(int milliseconds);
-
-#define __MSPDEBUG__ 0
-
-#if __MSPDEBUG__ > 3
-
-void MSPBeep(MSP3430Ptr m, CARD8 freq);
-
-#define __MSPBEEP MSPBeep(m,0x14);
-
-#else
-
-#define __MSPBEEP
-#endif
-
-static void
-SetMSP3430Control(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegValueHigh,
- CARD8 RegValueLow)
-{
- I2CByte data[3];
-
- data[0] = RegAddress;
- data[1] = RegValueHigh;
- data[2] = RegValueLow;
-
- I2C_WriteRead(&(m->d), data, 3, NULL, 0);
-}
-
-static void
-SetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh,
- CARD8 RegSubAddressLow, CARD8 RegValueHigh, CARD8 RegValueLow)
-{
- I2CByte data[5];
-
-#ifdef MSP_DEBUG
- if (!m->registers_present[RegSubAddressLow]) {
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_ERROR,
- "Attempt to access non-existent register in MSP34xxX: 0x%02x 0x%02x 0x%02x <- 0x%02x 0x%02x\n",
- RegAddress, RegSubAddressHigh, RegSubAddressLow,
- RegValueHigh, RegValueLow);
- }
-#endif
-
- data[0] = RegAddress;
- data[1] = RegSubAddressHigh;
- data[2] = RegSubAddressLow;
- data[3] = RegValueHigh;
- data[4] = RegValueLow;
-
- I2C_WriteRead(&(m->d), data, 5, NULL, 0);
-}
-
-static void
-GetMSP3430Data(MSP3430Ptr m, CARD8 RegAddress, CARD8 RegSubAddressHigh,
- CARD8 RegSubAddressLow, CARD8 *RegValueHigh, CARD8 *RegValueLow)
-{
- I2CByte send[3];
- I2CByte receive[2];
-
- send[0] = RegAddress;
- send[1] = RegSubAddressHigh;
- send[2] = RegSubAddressLow;
-
- I2C_WriteRead(&(m->d), send, 3, receive, 2);
-
- *RegValueHigh = receive[0];
- *RegValueLow = receive[1];
-}
-
-#if __MSPDEBUG__ > 2
-static void
-MSP3430DumpStatus(MSP3430Ptr m)
-{
- CARD8 status_hi, status_lo;
- CARD8 subaddr, data[2];
-
- GetMSP3430Data(m, RD_DEM, 0x02, 0x00, &status_hi, &status_lo);
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "MSP34xx: SAP(8)=%d mono/NICAM(7)=%d stereo=%d %s O_1=%d O_0=%d 2nd car=%d 1st car=%d\n",
- status_hi & 1, (status_lo >> 7) & 1, (status_lo >> 6) & 1,
- (status_lo >> 5) ? ((status_hi >> 1) & 1 ? "bad NICAM reception"
- : "NICAM") : ((status_hi >> 1) & 1 ? "bogus"
- : "ANALOG FM/AM"),
- (status_lo >> 4) & 1, (status_lo >> 3) & 1,
- !((status_lo >> 2) & 1), !((status_lo >> 1) & 1));
-
- GetMSP3430Data(m, RD_DEM, 0x00, 0x7E, &status_hi, &status_lo);
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "MSP34xx: standard result=0x%02x%02x\n", status_hi, status_lo);
- subaddr = 0x0;
- I2C_WriteRead(&(m->d), &subaddr, 1, data, 2);
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP34xx: control=0x%02x%02x\n",
- data[1], data[0]);
-}
-#endif
-
-/* wrapper */
-void
-InitMSP3430(MSP3430Ptr m)
-{
-#if __MSPDEBUG__ > 1
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "InitMSP3430(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",
- m->connector, m->standard, m->chip_family);
-#endif
- switch (m->chip_family) {
- case MSPFAMILY_34x0G:
- InitMSP34xxG(m);
- break;
- case MSPFAMILY_34x5G:
- InitMSP34xxG(m);
- break;
- case MSPFAMILY_34x5D:
- InitMSP34x5D(m);
- break;
- }
-}
-
-/*-----------------------------------------------------------------
-| common functions for all MSP34xx chips
-|----------------------------------------------------------------*/
-
-MSP3430Ptr
-DetectMSP3430(I2CBusPtr b, I2CSlaveAddr addr)
-{
- MSP3430Ptr m;
- I2CByte a;
- CARD8 hardware_version, major_revision, product_code, rom_version;
- Bool supported;
-
- m = calloc(1, sizeof(MSP3430Rec));
- if (m == NULL)
- return NULL;
- m->d.DevName = strdup("MSP34xx");
- m->d.SlaveAddr = addr;
- m->d.pI2CBus = b;
- m->d.NextDev = NULL;
- m->d.StartTimeout = b->StartTimeout;
- m->d.BitTimeout = b->BitTimeout;
- m->d.AcknTimeout = b->AcknTimeout;
- m->d.ByteTimeout = b->ByteTimeout;
-
- if (!I2C_WriteRead(&(m->d), NULL, 0, &a, 1)) {
- free((void *) m->d.DevName);
- free(m);
- return NULL;
- }
-
- m->standard = MSP3430_NTSC;
- m->connector = MSP3430_CONNECTOR_1;
- m->mode = MSPMODE_STEREO_A; /*stereo or chanel A if avail. */
- m->c_format = MSPFORMAT_UNKNOWN;
- m->c_standard = MSPSTANDARD_UNKNOWN;
- m->c_matrix = m->c_fmmatrix = m->c_source = 0;
- m->volume = 0;
- m->recheck = FALSE;
-
- GetMSP3430Data(m, RD_DSP, 0x00, 0x1E, &hardware_version, &major_revision);
- GetMSP3430Data(m, RD_DSP, 0x00, 0x1F, &product_code, &rom_version);
- m->hardware_version = hardware_version;
- m->major_revision = major_revision;
- m->product_code = product_code;
- m->rom_version = rom_version;
-
- m->chip_id = ((major_revision << 8) | product_code);
-
- supported = FALSE;
- switch (major_revision) {
- case 4: /* 34xxD */
- switch (product_code) {
- case 0x05: /* 3405D */
- case 0x0A: /* 3410D */
- case 0x0F: /* 3415D */
- m->chip_family = MSPFAMILY_34x5D;
- m->recheck = TRUE;
- supported = TRUE;
- break;
- default:
- m->chip_family = MSPFAMILY_34x0D;
- }
- break;
- case 7: /* 34xxG */
- switch (product_code) {
- case 0x00:
- case 0x0A:
- case 0x1E:
- case 0x28:
- case 0x32:
- m->chip_family = MSPFAMILY_34x0G;
- supported = TRUE;
- break;
- case 0x0f:
- case 0x19:
- case 0x2d:
- case 0x37:
- case 0x41:
- m->chip_family = MSPFAMILY_34x5G;
- supported = TRUE;
-#ifdef MSP_DEBUG
- memset(m->registers_present, 0, 256);
-#define A(num) m->registers_present[(num)]=1;
-#define B(num1, num2) memset(&(m->registers_present[num1]), 1, num2-num1);
- A(0x20)
- A(0x30)
- A(0x40)
- A(0x00)
- B(0x01, 0x08)
- B(0x0B, 0x0E)
- A(0x10)
- B(0x12, 0x14)
- A(0x16)
- A(0x29)
-#undef B
-#undef A
-#endif
- break;
- default:
- m->chip_family = MSPFAMILY_UNKNOWN;
- }
- break;
- default:
- m->chip_family = MSPFAMILY_UNKNOWN;
- }
-
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "Found %s%s, rom version 0x%02x, chip_id=0x%04x\n",
- MSP_getProductName(m->chip_id),
- supported ? "" : " (unsupported)", rom_version, m->chip_id);
-
- if (!supported) {
- free((void *) m->d.DevName);
- free(m);
- return NULL;
- }
- if (!I2CDevInit(&(m->d))) {
- free((void *) m->d.DevName);
- free(m);
- return NULL;
- }
-
- return m;
-}
-
-void
-ResetMSP3430(MSP3430Ptr m)
-{
- /* Reset the MSP3430 */
- SetMSP3430Control(m, 0x00, 0x80, 0x00);
- /* Set it back to normal operation */
- SetMSP3430Control(m, 0x00, 0x00, 0x00);
-
- m->c_format = MSPFORMAT_UNKNOWN;
- m->c_standard = MSPSTANDARD_UNKNOWN;
- m->c_matrix = m->c_fmmatrix = m->c_source = 0;
- m->volume = 0;
-}
-
-void
-MSP3430SetVolume(MSP3430Ptr m, CARD8 value)
-{
- CARD8 result;
-
-#if 0
- CARD8 old_volume;
-
- GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 result 0x%02x\n",
- result);
-#endif
- /* save an extra Get call */
- result = 0;
-
- SetMSP3430Data(m, WR_DSP, 0x00, 0x00, value, result);
-
- SetMSP3430Data(m, WR_DSP, 0x00, 0x07, value, 0);
- m->volume = value;
-
-#if __MSPDEBUG__ > 2
- MSP3430DumpStatus(m);
- __MSPBEEP GetMSP3430Data(m, RD_DSP, 0x00, 0x00, &old_volume, &result);
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "MSP3430 volume 0x%02x\n",
- value);
-#endif
-}
-
-void
-MSP3430SetSAP(MSP3430Ptr m, int mode)
-{
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "Put actual code to change SAP here\n");
-
- SetMSP3430Data(m, WR_DSP, 0x00, 0x08, mode & 0xff, 0x20);
-}
-
-#if 0
-void
-MSP3430SetSource(MSP3430Ptr m, CARD8 value)
-{
- /* Write to DSP, register 0x0008, (loudspeaker channel source/matrix) */
- /* This sets the source to the TV tuner, for stereo operation */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x08, value, 0x20);
-}
-#endif
-
-static const char *
-MSP_getProductName(CARD16 product_id)
-{
- switch (product_id) {
- case 0x0400:
- return "MSP3400D";
- case 0x040a:
- return "MSP3410D";
- case 0x0405:
- return "MSP3405D";
- case 0x040f:
- return "MSP3415D";
- case 0x0700:
- return "MSP3400G";
- case 0x070a:
- return "MSP3410G";
- case 0x071e:
- return "MSP3430G";
- case 0x0728:
- return "MSP3440G";
- case 0x0732:
- return "MSP3450G";
- case 0x070f:
- return "MSP3415G";
- case 0x0719:
- return "MSP3425G";
- case 0x072d:
- return "MSP3445G";
- case 0x0737:
- return "MSP3455G";
- case 0x0741:
- return "MSP3465G";
- }
- return "MSP - unknown type";
-}
-
-#if __MSPDEBUG__ > 2
-/*puts beep in MSP output
- freq = 0x01 - 16Hz ... 0x40 - 1kHz ... 0xff - 4kHz
-*/
-void
-MSPBeep(MSP3430Ptr m, CARD8 freq)
-{
- SetMSP3430Data(m, WR_DSP, 0x00, freq, 0x7f, 0x40);
- mpause(100);
- SetMSP3430Data(m, WR_DSP, 0x00, 0x14, 0x00, 0x00);
-}
-#endif
-
-void
-mpause(int milliseconds)
-{
- int i, m;
-
- m = milliseconds / 20;
- for (i = 0; i < m; i++)
- usleep(20000);
-}
-
-/*-----------------------------------------------------------------
-| specific functions for all MSP34xxG chips
-|----------------------------------------------------------------*/
-
-void
-InitMSP34xxG(MSP3430Ptr m)
-{
-
-#if __MSPDEBUG__ > 1
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "InitMSP34xxG(m->connector=%d, m->standard=%d, m->chip_family=%d)\n",
- m->connector, m->standard, m->chip_family);
-#endif
- /* Reset MSP3430 */
- SetMSP3430Control(m, 0x00, 0x80, 0x00);
- /* Set it back to normal operation */
- SetMSP3430Control(m, 0x00, 0x00, 0x00);
-
- /*set MODUS register */
- /* bits: 0 - automatic sound detection */
- /* 1 - enable STATUS change */
- /* 12 - detect 6.5 Mhz carrier as D/K1, D/K2 or D/K NICAM (does not seem to work ) */
- /* 13 - detect 4.5 Mhz carrier as BTSC */
- if ((m->standard & 0xff) == MSP3430_PAL) {
- SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x30, 0x03 | 0x08); /* make O_ pins tristate */
- /* PAL standard */
- SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x01); /* possibly wrong */
- }
- else {
- SetMSP3430Data(m, WR_DEM, 0x00, 0x30, 0x20, 0x03 | 0x08);
- /* standard selection is M-BTSC-Stereo */
- SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x20);
- }
-
- switch (m->connector) {
- case MSP3430_CONNECTOR_1:
- SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x03, 0x20);
- break;
- case MSP3430_CONNECTOR_2:
- /* this has not been checked yet.. could be bogus */
- /* SCART Input Prescale: 0 dB gain */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
- SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);
- break;
- case MSP3430_CONNECTOR_3:
- default:
- /* SCART Input Prescale: 0 dB gain */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
-
- SetMSP3430Data(m, WR_DSP, 0x00, 0x08, 0x02, 0x20);
- break;
- }
-
- switch (m->standard) {
- case MSP3430_PAL:
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
- SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);
- SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x03);
- /* Set volume to FAST_MUTE. */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
- break;
- case MSP3430_PAL_DK1:
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
- SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x00, 0x5a);
- SetMSP3430Data(m, WR_DEM, 0x00, 0x20, 0x00, 0x04);
- /* Set volume to FAST_MUTE. */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
- break;
- case MSP3430_SECAM: /* is this right ? */
- case MSP3430_NTSC:
- /* Write to DSP, register 0x000E, (prescale FM/FM matrix) */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x24, 0x03);
-
- /* Set volume to FAST_MUTE. */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00);
- break;
- }
-
-}
-
-/*-----------------------------------------------------------------
-| specific functions for all MSP34x5D chips
-|----------------------------------------------------------------*/
-
-void
-InitMSP34x5D(MSP3430Ptr m)
-{
- int count;
- CARD8 high, low;
- CARD16 result, standard;
- CARD16 peak;
-
- if (m->c_format == MSPFORMAT_UNKNOWN)
- ResetMSP3430(m);
- else {
- /*mute volume */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0x00, 0x00);
- }
-
- switch (m->connector) {
- case MSP3430_CONNECTOR_2:
- case MSP3430_CONNECTOR_3:
- if (m->c_format != MSPFORMAT_SCART) {
- /* SCART Input Prescale: 0 dB gain */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0d, 0x19, 0x00);
- /* this has not been checked yet.. could be bogus */
- m->c_format = MSPFORMAT_SCART; /*stereo */
- }
- break;
- case MSP3430_CONNECTOR_1:
- default:
-
- switch (m->standard & 0x00ff) {
- case MSP3430_PAL:
- switch (m->standard) {
- case MSP3430_PAL_DK1:
- standard = MSPSTANDARD_FM_DK1;
- break;
-/* case MSP3430_PAL_DK2:
- standard=MSPSTANDARD_FM_DK2;
- break;
- case MSP3430_PAL_BG:
- may be FM stereo (Germany) or FM NICAM (Scandinavia,spain)
- standard=MSPSTANDARD_AUTO;
- break;
-*/
- default:
- standard = MSPSTANDARD_AUTO;
- }
- break;
- case MSP3430_SECAM:
- standard = MSPSTANDARD_AUTO;
- case MSP3430_NTSC:
- /* Only MSP34x5 supported format - Korean NTSC-M */
- standard = MSPSTANDARD_FM_M;
- default:
- standard = MSPSTANDARD_AUTO;
- }
-
- /*no NICAM support in MSP3410D - force to autodetect */
- if ((m->chip_id == 0x405) && (standard >= MSPSTANDARD_NICAM_BG))
- standard = MSPSTANDARD_AUTO;
-
- if (m->c_standard != standard) {
-
- SetMSP3430Data(m, WR_DEM, 0x00, 0x20, standard >> 8,
- standard & 0xFF);
- if (standard == MSPSTANDARD_AUTO) {
- count = 50; /* time shouldn't exceed 1s, just in case */
- do {
- usleep(20000);
- GetMSP3430Data(m, RD_DEM, 0x00, 0x7e, &high, &low);
- result = (high << 8) | low;
- --count;
- } while (result > 0x07ff && count > 0);
-
- if ((result > MSPSTANDARD_AUTO))
- standard = result;
- else
- standard = MSPSTANDARD_UNKNOWN;
-#if __MSPDEBUG__ > 1
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "Detected audio standard: %d\n", result);
-#endif
- /* result = MSPSTANDARD_NICAM_L can be one of:
- SECAM_L - MSPSTANDARD_NICAM_L
- D/K1 - MSPSTANDARD_FM_DK1
- D/K2 - MSPSTANDARD_FM_DK2
- D/K-NICAM - MSPSTANDARD_NICAM_DK */
- if (standard == MSPSTANDARD_NICAM_L) {
- if ((m->standard & 0x00ff) == MSP3430_PAL) {
- /* force PAL D/K */
- standard = MSPSTANDARD_FM_DK1;
- SetMSP3430Data(m, WR_DEM, 0x00, 0x20, standard >> 8,
- standard & 0xFF);
-#if __MSPDEBUG__ > 1
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "Detected 6.5MHz carrier - forced to D/K1 !!!\n");
-#endif
- }
- }
- }
- m->c_standard = standard;
- } /*end - standard changed */
- else {
- if (standard < MSPSTANDARD_NICAM_BG) {
- /* get old value of ident. mode register */
- GetMSP3430Data(m, RD_DSP, 0x00, 0x15, &high, &low);
- /* reset Ident-Filter */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x14, 0x00, 0x3F);
- /* put back old value to ident. mode register */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x14, 0x00, low);
- }
- }
-
- if (standard <= MSPSTANDARD_AUTO) {
- m->c_format = MSPFORMAT_1xFM;
- }
- else if (standard < MSPSTANDARD_NICAM_BG) {
- /* set FM prescale */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x30, 0);
- /* set FM deemphasis */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0f,
- ((standard == MSPSTANDARD_FM_M) ? 0 : 1), 0);
-
- /* check if FM2 carrier is present */
- /*turn off FM DC Notch */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x17, 0x00, 0x3f);
- /*matrix source for Quasi-Peak Detector - stereo: ch2->L ch1->R */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0c, 0x00, 0x20);
-
- mpause(250);
- GetMSP3430Data(m, RD_DSP, 0x00, 0x1A, &high, &low);
- peak = (high << 8) | low;
-#if __MSPDEBUG__ > 1
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "Second carrier Quasi-Peak detection: %d\n", peak);
-#endif
- /*turn on FM DC Notch */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x17, 0x00, 0x00);
-
- if (peak < 5) {
- /* if second carrier not detected - only mono from first carrier */
- m->c_format = MSPFORMAT_1xFM;
- }
- else {
- m->c_format = MSPFORMAT_2xFM;
- /*start of FM identification process - FM_WAIT
- wait at least 0.5s - used 1s - gives beter resolution */
- mpause(1000);
- }
- }
- else {
- if (standard == MSPSTANDARD_NICAM_L) {
- m->c_format = MSPFORMAT_NICAM_AM;
- /* set AM prescale */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x7C, 0);
- }
- else {
- m->c_format = MSPFORMAT_NICAM_FM;
- /* set FM prescale */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, 0x30, 0);
- }
- /* set FM deemphasis */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0f, 0x00, 0);
- /* set NICAM prescale to 0dB */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x10, 0x20, 0);
- }
-
- break;
- } /*end - case conector */
-
- CheckModeMSP34x5D(m);
-
- /* Set volume to FAST_MUTE. */
- /*SetMSP3430Data(m, WR_DSP, 0x00, 0x00, 0xFF, 0x00); */
- /*set volume */
- MSP3430SetVolume(m, m->volume);
-
-__MSPBEEP} /* EnableMSP34x5D ()... */
-
-void
-CheckModeMSP34x5D(MSP3430Ptr m)
-{
- const char stereo_on = 25;
- const char stereo_off = 20;
- const char dual_on = -stereo_on;
- const char dual_off = -stereo_off;
- char detect;
- CARD8 matrix, fmmatrix, source, high, low;
-
- fmmatrix = 0; /*no matrix */
- source = 0;
- /*FM*/ switch (m->c_format) {
- case MSPFORMAT_NICAM_FM:
- case MSPFORMAT_NICAM_AM:
- case MSPFORMAT_SCART:
- source = ((m->c_format == MSPFORMAT_SCART) ? 2 : 1);
- switch (m->mode) {
- case MSPMODE_MONO:
- matrix = 0x30;
- /*MONO*/ break;
- case MSPMODE_A:
- matrix = 0x00;
- /*A*/ break;
- case MSPMODE_B:
- matrix = 0x10;
- /*B*/ break;
- default:
- matrix = 0x20;
- /*STEREO*/ break;
- }
- break;
- default:
- case MSPFORMAT_1xFM:
- matrix = 0x00;
- /*A*/ break;
- case MSPFORMAT_2xFM:
- switch (m->mode) {
- case MSPMODE_MONO:
- matrix = 0x30;
- /*MONO*/ break;
- case MSPMODE_STEREO:
- matrix = 0x20;
- /*STEREO*/ fmmatrix = ((m->c_standard == MSPSTANDARD_FM_M) ? 2 : 1);
- break;
- case MSPMODE_AB:
- matrix = 0x20;
- /*STEREO*/ break;
- case MSPMODE_A:
- matrix = 0x00;
- /*A*/ break;
- case MSPMODE_B:
- matrix = 0x10;
- /*B*/ break;
- default:
- /*FM_IDENT_CHECK */
- GetMSP3430Data(m, RD_DSP, 0x00, 0x18, &high, &low);
- detect = (char) high;
-#if __MSPDEBUG__ > 1
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO,
- "Stereo Detection Register: %d\n", detect);
-#endif
- if (detect >=
- ((m->c_mode == MSPMODE_STEREO) ? stereo_off : stereo_on)) {
- m->c_mode = MSPMODE_STEREO;
- matrix = 0x20;
- /*STEREO*/
- fmmatrix = ((m->c_standard == MSPSTANDARD_FM_M) ? 2 : 1);
- }
- else if (detect <= ((m->c_mode == MSPMODE_AB) ? dual_off : dual_on)) {
- m->c_mode = MSPMODE_AB;
- switch (m->mode) {
- case MSPMODE_STEREO_AB:
- matrix = 0x20;
- break;
- case MSPMODE_STEREO_B:
- matrix = 0x10;
- break;
- default:
- case MSPMODE_A:
- matrix = 0x00;
- break;
- }
- }
- else {
- m->c_mode = MSPMODE_MONO;
- matrix = 0x30;
- /*MONO*/}
- break;
- } /* end - case mode */
- break;
- }
-
- if (m->c_fmmatrix != fmmatrix) {
- GetMSP3430Data(m, RD_DSP, 0x00, 0x0e, &high, &low);
- SetMSP3430Data(m, WR_DSP, 0x00, 0x0e, high, fmmatrix);
- m->c_fmmatrix = fmmatrix;
- }
-
- if ((m->c_matrix != matrix) || (m->c_source != source)) {
- /*set chanel source and matrix for loudspeaker */
- SetMSP3430Data(m, WR_DSP, 0x00, 0x08, source, matrix);
-
- m->c_matrix = matrix;
- m->c_source = source;
- }
-
- if (((m->c_format) & 0xF0) == MSPFORMAT_NICAM)
- SetMSP3430Data(m, WR_DEM, 0x00, 0x21, 0, 1);
-
-#if __MSPDEBUG__ > 0
- char *msg;
-
- switch (matrix) {
- case 0x30:
- /*MONO*/ msg = "MONO";
- break;
- case 0x00:
- /*LEFT*/ msg = "MONO/CHANNEL_1";
- break;
- case 0x10:
- /*RIGHT*/ msg = "MONO/CHANNEL_2";
- break;
- case 0x20:
- /*LEFT*/ msg = "STEREO";
- break;
- default:
- msg = "unknown";
- break;
- }
- xf86DrvMsg(m->d.pI2CBus->scrnIndex, X_INFO, "Audio mode set to: %s\n", msg);
-#endif
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 12:04:56 +0000