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.code-reading
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****************
这个东西实际上是external clock的pinmux
/scp:bhj@r889:/home/bhj/src/rayzerlink-pad/hardware/tegra/core/drivers/nvrm/nvrmkernel/core/ap15/ap15rm_pinmux_tables.c:794: &g_Ap15MuxCdev[0],
/* Array of all the controller types in the system, pointing to the array of
* instances of each controller. Indexed using the NvRmIoModule value.
*/
static const NvU32** g_Ap15MuxControllers[] = {
...
=> &g_Ap15MuxCdev[0],
****************
这个函数就是 pfnGetExtClockFreq 是怎么实现的，根据ap的版本不同有可能会调用不同的版本。
/scp:bhj@r889:/home/bhj/src/rayzerlink-pad/hardware/tegra/core/drivers/nvrm/nvrmkernel/core/common/nvrm_pinmux.c:136: NvRmPrivAp15GetExternalClockSourceFreq,
static NvPinmuxPrivMethods* NvRmPrivGetPinmuxMethods(NvRmDeviceHandle hDevice)
{
...
{
...
=> NvRmPrivAp15GetExternalClockSourceFreq,
****************
/scp:bhj@r889:/home/bhj/src/android-nv-froyo/hardware/tegra/core/utils/nvos/aos/aos_semihost.h:44: void (*SemiDebugString)( const char *msg );
/**
* AOS supports several file i/o (semihosting) implementations.
*/
typedef struct NvAosSemihostRec
{
...
=> void (*SemiDebugString)( const char *msg );
****************
/scp:bhj@r889:/home/bhj/src/android-nv-froyo/frameworks/base/include/ui/KeycodeLabels.h:28: { "HOME", 3 },
static const KeycodeLabel KEYCODES[] = {
...
=> { "HOME", 3 },
****************
/usr/share/pyshared/html2text.py:207: def handle_tag(self, tag, attrs, start):
class _html2text(sgmllib.SGMLParser):
...
=> def handle_tag(self, tag, attrs, start):
****************
/usr/share/pyshared/html2text.py:270: if a:
class _html2text(sgmllib.SGMLParser):
...
def handle_tag(self, tag, attrs, start):
...
if tag == "a":
...
else:
if self.astack:
...
=> if a:
****************
这个地方应该是nv里配置哪个uart使用相关的代码。
/scp:bhj@r889:/home/bhj/src/theatre-p2/hardware/tegra/core/utils/nvos/aos/nvap/aos_uart.c:76: TRISTATE_UART(B,UAA);
static NvError aos_EnableUartA(NvU32 configuration)
{
...
case NvOdmUartPinMap_Config1:
=> TRISTATE_UART(B,UAA);
****************
这段代码很奇怪，(0?x)在C语言里根本不合法呀，到底是什么意思呢？
但是仔细看了一下，原来如果x也是一个宏的话，比如18:17，那么就又有意义了。
/scp:bhj@r889:/home/bhj/src/android-byd/hardware/tegra/core/include/nvrm_drf.h:55: #define NV_FIELD_SHIFT(x) ((0?x)%32)
/*
* The NV_FIELD_* macros are helper macros for the public NV_DRF_* macros.
*/
#define NV_FIELD_LOWBIT(x) (0?x)
#define NV_FIELD_HIGHBIT(x) (1?x)
...
=> #define NV_FIELD_SHIFT(x) ((0?x)%32)
****************
这个临时文件是通过gcc -E用了上面的这个.h文件的一个.c文件出来的，APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE的定义用gtags都搜不到，但是用grep的话可以看见，它的定义如下：
#define APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE 18:18
ooo:2025: TristateReg = NvRead32((void *)(0x70000000 + APB_MISC_PP_TRISTATE_REG_B_0)); TristateReg = (((TristateReg) & ~((0xFFFFFFFFUL>>(31-((1?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32)+((0?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32)))<< (((0?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32)))) | ((APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_NORMAL) << ((0?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32))); NvWrite32((void *)(0x70000000 + APB_MISC_PP_TRISTATE_REG_B_0),(TristateReg));;
static NvError aos_EnableUartA(NvU32 configuration)
{
...
case NvOdmUartPinMap_Config1:
=> TristateReg = NvRead32((void *)(0x70000000 + APB_MISC_PP_TRISTATE_REG_B_0)); TristateReg = (((TristateReg) & ~((0xFFFFFFFFUL>>(31-((1?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32)+((0?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32)))<< (((0?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32)))) | ((APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_NORMAL) << ((0?APB_MISC_PP_TRISTATE_REG_B_0_Z_UAA_RANGE)%32))); NvWrite32((void *)(0x70000000 + APB_MISC_PP_TRISTATE_REG_B_0),(TristateReg));;
****************
在这里设置用哪个终端出log
/scp:bhj@r889:/home/bhj/src/android-byd/hardware/tegra/odm/harmony/odm_kit/query/nvodm_query.c:330: return NvOdmDebugConsole_UartD;
NvOdmDebugConsole
NvOdmQueryDebugConsole(void)
{
=> return NvOdmDebugConsole_UartD;
****************
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/hardware/tegra/core/drivers/nvdispmgr/server/nvdispmgr.c:2322: pOut->TotalCount = 0;
//===========================================================================
// NvDispMgrDisplayListModesImpl() - list the modes for a display
//===========================================================================
static NvError NvDispMgrDisplayListModesImpl(
NvDispMgr *dm,
NvDispMgrClient *cl,
NvDispMgrDisplayListModesIn *pIn,
NvDispMgrDisplayListModesOut *pOut)
{
...
=> pOut->TotalCount = 0;
****************
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/hardware/tegra/core/drivers/nvdispmgr/server/nvdispmgr.c:2680: DM_FUNC(DisplayListModes,1); // NvDispMgrDisplayListModesImpl()
//===========================================================================
// NvDispMgrInitFunctionTable() - initialize pointers to each function
//===========================================================================
void NvDispMgrInitFunctionTable(NvDispMgr *dm)
{
...
=> DM_FUNC(DisplayListModes,1); // NvDispMgrDisplayListModesImpl()
****************
i2c是在这里配置的：
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/hardware/tegra/core/drivers/nvrm/nvrmkernel/core/ap20/ap20rm_pinmux_tables.c:200: CONFIG(A,G,PTA,I2C2),CONFIGEND(),
static const NvU32 g_Ap20Mux_I2c2[] = {
...
=> CONFIG(A,G,PTA,I2C2),CONFIGEND(),
****************
pmu之外的外部电源用的是哪个gpio
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/hardware/tegra/odm/ventana/odm_kit/query/subboards/nvodm_query_discovery_pm275_addresses.h:218: { NvOdmIoModule_Gpio, 'v'-'a', 5, 0 },
static const NvOdmIoAddress s_Vddio_Vid_En[] = {
=> { NvOdmIoModule_Gpio, 'v'-'a', 5, 0 },
****************
这个pmu上还有一些gpio，可以控制输出电压？
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/hardware/tegra/odm/template/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c:536: Ext_TPS72012PmuSupply_LDO,
/* FIXME: Change getVoltage/setVoltage according to your fuse */
static const TPS6586xPmuSupplyInfo tps6586xSupplyInfoTable[] =
{
...
{
=> Ext_TPS72012PmuSupply_LDO,
****************
注册中断的方法：
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/kernel/arch/arm/mach-tegra/odm_kit/platform/accelerometer/nvodm_accelerometer_kxtf9.c:385: if (NvOdmGpioInterruptRegister(hDevice->hGpioINT,
static NvBool ConfigInterrupt(NvOdmAccelHandle hDevice)
{
...
=> if (NvOdmGpioInterruptRegister(hDevice->hGpioINT,
****************
这里应该是每个i2c上选的哪个pinmux配置？
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/hardware/tegra/odm/ventana/odm_kit/query/nvodm_query_pinmux.c:43: static const NvU32 s_NvOdmPinMuxConfig_I2c[] = {
static const NvU32 s_NvOdmPinMuxConfig_Twc[] = {
0
...
=> static const NvU32 s_NvOdmPinMuxConfig_I2c[] = {
Nvidia 自带了用gpio模拟i2c的代码，回头电源代码可以用这个来试一下。
/scp:bhj@r889:/home/bhj/src/rayzerlink-ventana/kernel/arch/arm/mach-tegra/nvrm/io/common/nvrm_i2c.c:539: if ((Transaction[0].Flags & NVRM_I2C_SOFTWARE_CONTROLLER) ||
NvError NvRmI2cTransaction(
NvRmI2cHandle hI2c,
NvU32 I2cPinMap,
NvU32 WaitTimeoutInMilliSeconds,
NvU32 ClockSpeedKHz,
NvU8 *Data,
NvU32 DataLength,
NvRmI2cTransactionInfo * Transaction,
NvU32 NumOfTransactions)
{
...
=> if ((Transaction[0].Flags & NVRM_I2C_SOFTWARE_CONTROLLER) ||
****************
这里是battery太低的时候，系统会关机的code所在的地方。
/scp:bhj@r889:/home/bhj/src/theatre-p2/frameworks/base/services/java/com/android/server/BatteryService.java:187: Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);
/**
* <p>BatteryService monitors the charging status, and charge level of the device
* battery. When these values change this service broadcasts the new values
* to all {@link android.content.BroadcastReceiver IntentReceivers} that are
* watching the {@link android.content.Intent#ACTION_BATTERY_CHANGED
* BATTERY_CHANGED} action.</p>
* <p>The new values are stored in the Intent data and can be retrieved by
* calling {@link android.content.Intent#getExtra Intent.getExtra} with the
* following keys:</p>
* <p>"scale" - int, the maximum value for the charge level</p>
* <p>"level" - int, charge level, from 0 through "scale" inclusive</p>
* <p>"status" - String, the current charging status.<br />
* <p>"health" - String, the current battery health.<br />
* <p>"present" - boolean, true if the battery is present<br />
* <p>"icon-small" - int, suggested small icon to use for this state</p>
* <p>"plugged" - int, 0 if the device is not plugged in; 1 if plugged
* into an AC power adapter; 2 if plugged in via USB.</p>
* <p>"voltage" - int, current battery voltage in millivolts</p>
* <p>"temperature" - int, current battery temperature in tenths of
* a degree Centigrade</p>
* <p>"technology" - String, the type of battery installed, e.g. "Li-ion"</p>
*/
class BatteryService extends Binder {
...
private final void shutdownIfNoPower() {
...
if (mBatteryLevel == 0 && !isPowered() && ActivityManagerNative.isSystemReady()) {
=> Intent intent = new Intent(Intent.ACTION_REQUEST_SHUTDOWN);
****************
这个gpio就是ventana代码里控制充电enable/disable的位置。
/scp:bhj@r889:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/odm_kit/query/ventana/nvodm_query_gpio.c:162: {NVODM_PORT('r'), 6, NvOdmGpioPinActiveState_Low},
static const NvOdmGpioPinInfo s_Battery[] = {
...
=> {NVODM_PORT('r'), 6, NvOdmGpioPinActiveState_Low},
****************
这里是配哪个是中断唤醒源的地方，NV的工程师建议把所有的NV_TRUE都改成
NV_FALSE试一试。
/scp:bhj@r889:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/odm_kit/query/ventana/nvodm_query.c:45: {NV_FALSE, 2, NvOdmWakeupPadPolarity_High}, // Wake Event 2 - dvi_d3
#define BOARD_ID_VENTANA 0x024B
// Wake Events
static NvOdmWakeupPadInfo s_NvOdmWakeupPadInfo[] =
{
...
=> {NV_FALSE, 2, NvOdmWakeupPadPolarity_High}, // Wake Event 2 - dvi_d3
****************
这个是配置哪个gpio是中断源，上面那个是配置哪个中断源有效，以及有效电平
/scp:bhj@r889:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/board-nvodm.c:1581: gpio_to_irq(TEGRA_GPIO_PC7), gpio_to_irq(TEGRA_GPIO_PS2),
static void __init tegra_setup_suspend(void)
{
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
const int wakepad_irq[] = {
...
=> gpio_to_irq(TEGRA_GPIO_PC7), gpio_to_irq(TEGRA_GPIO_PS2),
****************
maverick或下一个版本的usb-creator已经可以在debian上做dpkg-buildpackage并安装使用了，但是需要改一个地方：
/usr/share/pyshared/usbcreator/install.py:256: contents = f.readline().split()
class install(Thread):
...
def mangle_syslinux(self):
...
for filename in glob.iglob(os.path.join(self.target, 'syslinux', '*.cfg')):
...
if os.path.exists(os.path.join(self.target, '.disk', 'info')):
with open(os.path.join(self.target, '.disk', 'info'),'r') as f:
=> contents = f.readline().split()
****************
<6>[ 7.097367] mmcblk3: mmc2:0001 SEM08G 7.37 GiB
/scp:bhj@r889:/home/bhj/src/theatre-p2/kernel/drivers/mmc/card/block.c:643: printk(KERN_INFO "%s: %s %s %s %s\n",
static int mmc_blk_probe(struct mmc_card *card)
{
...
=> printk(KERN_INFO "%s: %s %s %s %s\n",
****************
这个位置很有意思，为什么tegra-10.9.7会把原来i2c bus3上面的东西，变成了bus4？因为在bus1上多了一种config！
也就是多了一条bus出来了啦。
/scp:[email protected]:/home/bhj/src/theatre-p2/kernel/drivers/i2c/busses/i2c-tegra.c:256: i2c_bus->pinmux = plat->bus_mux[i];
static int tegra_i2c_probe(struct platform_device *pdev)
{
...
for (i=0; i<nbus; i++) {
...
=> i2c_bus->pinmux = plat->bus_mux[i];
****************
下面的python *empty_entry_tuple用法看这篇文章，
file:///usr/share/doc/python2.6/html/reference/expressions.html#grammar-token-positional_arguments
到5.3.4. Calls. 这个用法出现在参数列表里，我们就去看一下参数列表的BNF。
/scp:[email protected]:/home/bhj/src/theatre-p2/vendor/nvidia/scripts/ota/patch.py:463: empty_entry = struct.pack('=4sIII', *empty_entry_tuple)
# Create updater-script
# print 'Generate updater-script'
...
if number > 0:
...
=> empty_entry = struct.pack('=4sIII', *empty_entry_tuple)
****************
扫描分区？
/scp:bhj@r889:/home/bhj/src/theatre-p2/kernel/fs/partitions/check.c:544: if (bdev->bd_part_count)
int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
{
...
=> if (bdev->bd_part_count)
****************
/scp:[email protected]:/home/bhj/src/theatre-p2/hardware/tegra/core/system/fastboot/linux_cmdline.c:324: /* Remain -= Idx; */
/* Creates the command line, and adds it to the TAG list */
void FastbootCommandLine(
NvAbootHandle hAboot,
const PartitionNameMap *PartitionList,
NvU32 NumPartitions,
NvU32 SecondaryBootDevice,
NvBool HasInitRamDisk,
const unsigned char *ProductName)
{
...
=> /* Remain -= Idx; */
****************
/* NvOsSnprintf(ptr, Remain, "%s ", "no_console_suspend"); */
/* Idx = NvOsStrlen(ptr); */
/* ptr += Idx; */
/* Remain -= Idx; */
/scp:[email protected]:/home/bhj/src/theatre-p2/hardware/tegra/core/system/fastboot/linux_cmdline.c:324: /* Remain -= Idx; */
/* Creates the command line, and adds it to the TAG list */
void FastbootCommandLine(
NvAbootHandle hAboot,
const PartitionNameMap *PartitionList,
NvU32 NumPartitions,
NvU32 SecondaryBootDevice,
NvBool HasInitRamDisk,
const unsigned char *ProductName)
{
...
=> /* Remain -= Idx; */
****************
/scp:[email protected]:/home/bhj/src/virtualbox/virtualbox-ose-3.2.10-dfsg/src/VBox/Devices/Graphics/BIOS/vbetables-gen.c:31: { 1024, 600, 16 , 0x114},
{ 320, 200, 24 , 0x10F},
{ 640, 480, 15 , 0x110},
{ 640, 480, 16 , 0x111},
{ 640, 480, 24 , 0x112},
...
=> { 1024, 600, 16 , 0x114},
****************
下面这个值是odmdata里的，跟bct也有关系。
/scp:[email protected]:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/odm_kit/query/ventana/nvodm_query.c:763: PowerStateInfo.LowestPowerState = ((LPStateSelection != TEGRA_DEVKIT_BCT_CUSTOPT_0_LPSTATE_LP1)?
/**
* Gets the lowest soc power state supported by the hardware
*
* @returns information about the SocPowerState
*/
const NvOdmSocPowerStateInfo* NvOdmQueryLowestSocPowerState(void)
{
...
{
...
=> PowerStateInfo.LowestPowerState = ((LPStateSelection != TEGRA_DEVKIT_BCT_CUSTOPT_0_LPSTATE_LP1)?
****************
在哪里定义en_wifi_pwr
/scp:[email protected]:/home/bhj/src/theatre-p2/hardware/tegra/odm/ventana/odm_kit/query/subboards/nvodm_query_discovery_pm275_addresses.h:222: { NvOdmIoModule_Gpio, 'p'-'a', 0, 0 },
static const NvOdmIoAddress s_Vddio_Wifi_En[] = {
=> { NvOdmIoModule_Gpio, 'p'-'a', 0, 0 },
****************
pinmux group怎么定义
/scp:[email protected]:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/pinmux-t2-tables.c:851: PINGROUP(DAP3, BB, DAP3, RSVD, RSVD, RSVD, DAP3, 0x14, 9, 0x88, 24, 0xA0, 14),
static const struct tegra_pingroup_desc pingroups[TEGRA_MAX_PINGROUP] = {
...
=> PINGROUP(DAP3, BB, DAP3, RSVD, RSVD, RSVD, DAP3, 0x14, 9, 0x88, 24, 0xA0, 14),
****************
/scp:[email protected]:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/include/mach/pinmux.h:26: typedef enum {
#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
#include "pinmux-t2.h"
#else
#error "Undefined Tegra architecture"
...
=> typedef enum {
****************
/scp:[email protected]:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/include/mach/pinmux-t2.h:147: TEGRA_MUX_ ## f0, \
#define PINGROUP(pg_name, vdd, f0, f1, f2, f3, f_safe, \
...
[TEGRA_PINGROUP_ ## pg_name] = { \
...
.funcs = { \
=> TEGRA_MUX_ ## f0, \
****************
这个好像会把所有硬件模块的pinmux都设一遍。可能也包括kbc。需要查一下
/scp:[email protected]:/home/bhj/src/theatre-p2/hardware/tegra/core/drivers/nvrm/nvrmkernel/core/common/nvrm_pinmux.c:239: (p->pfnSetPinMuxCtl)(hDevice, *ModulePrograms, *OdmConfigs);
static void NvRmPrivApplyAllModuleTypePinMuxes(
NvRmDeviceHandle hDevice,
NvU32 Module,
NvBool ApplyReset,
NvBool ApplyActual)
{
...
{
...
{
=> (p->pfnSetPinMuxCtl)(hDevice, *ModulePrograms, *OdmConfigs);
****************
设置电压
/scp:[email protected]:/home/bhj/src/theatre-p2/hardware/tegra/odm/template/odm_kit/adaptations/pmu/tps6586x/nvodm_pmu_tps6586x.c:1320: if (! Tps6586xWriteVoltageReg(hDevice, vddRail, MilliVolts, pSettleMicroSeconds))
NvBool
Tps6586xSetVoltage(
NvOdmPmuDeviceHandle hDevice,
NvU32 vddRail,
NvU32 MilliVolts,
NvU32* pSettleMicroSeconds)
{
...
{
=> if (! Tps6586xWriteVoltageReg(hDevice, vddRail, MilliVolts, pSettleMicroSeconds))
****************
/scp:bhj@r889:/home/bhj/src/gb-p2/vendor/nvidia/tegra/hal/liboverlay/overlay.cpp:195: case OVERLAY_FORMAT_RGBA_8888:
static overlay_t* overlay_createOverlay(struct overlay_control_device_t *dev,
uint32_t w, uint32_t h, int32_t format)
{
...
switch (format) {
=> case OVERLAY_FORMAT_RGBA_8888:
****************
/scp:bhj@r889:/home/bhj/src/gb-p2/hardware/libhardware/modules/gralloc/framebuffer.cpp:355: const_cast<int&>(dev->device.format) = HAL_PIXEL_FORMAT_RGB_565;
int fb_device_open(hw_module_t const* module, const char* name,
hw_device_t** device)
{
...
if (!strcmp(name, GRALLOC_HARDWARE_FB0)) {
...
if (status >= 0) {
...
=> const_cast<int&>(dev->device.format) = HAL_PIXEL_FORMAT_RGB_565;
****************
看看能不能直接进recovery模式，而不需要按recovery键。
/scp:bhj@r889:/home/bhj/src/theatre-p2/hardware/tegra/core/system/nvaboot/nvaboot.c:469: RecoveryMode = NvBlQueryGetNv3pServerFlag();
NvError NvAbootOpen(
NvAbootHandle *phAboot,
NvU32 *EnterNv3pServer,
NvU32 *Boot)
{
...
=> RecoveryMode = NvBlQueryGetNv3pServerFlag();
****************
/scp:bhj@r889:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/include/ap20/project_relocation_table.h:459: #define NV_RELOCATION_TABLE_INIT \
// relocation table data (stored in boot rom)
// ------------------------------------------------------------
// relocation table pointer stored at NV_RELOCATION_TABLE_OFFSET
#define NV_RELOCATION_TABLE_PTR_OFFSET 64
...
=> #define NV_RELOCATION_TABLE_INIT \
****************
/scp:bhj@r889:/home/bhj/src/theatre-p2/hardware/tegra/core/system/fastboot/recovery_utils.c:769: NvOsStrncpy(partName, "CAC", NvOsStrlen("CAC"));
NvError UpdateDevice(NvAbootHandle hAboot, CommandType *Command)
{
...
{
...
{
...
{
=> NvOsStrncpy(partName, "CAC", NvOsStrlen("CAC"));
****************
这段代码是nvidia软件的核心
/scp:bhj@r889:/home/bhj/src/theatre-p2/hardware/tegra/core/mobile_linux/daemons/nvrm/app/server.c:502: NV_DAEMON_MODULES(DO_DISPATCH)
#define DO_DISPATCH(DAEMON) \
...
=> NV_DAEMON_MODULES(DO_DISPATCH)
****************
这个地方是会调到nv的display manager的入口
/scp:bhj@r889:/home/bhj/src/theatre-p2/hardware/tegra/core/drivers/nvdispmgr/client/dispmgr_local.h:81: NvDispMgrEntry(Client, InSize, In, OutSize);
//===========================================================================
// NvDispMgrCall()
//===========================================================================
static NV_INLINE NvError NvDispMgrCall(
NvDispMgrClientHandle Client,
NvDispMgrCmd Command,
NvU32 Id,
NvU32 Flags,
NvU32 InSize,
NvDispMgrCommonInParams *In,
NvU32 OutSize,
NvDispMgrCommonOutParams *Out,
NvDispMgrStateSequence *StateSequenceNumber)
{
...
=> NvDispMgrEntry(Client, InSize, In, OutSize);
****************
这个地方说我们用的是支持32位的？
/scp:bhj@r889:/home/bhj/src/theatre-p2/hardware/tegra/hal/libgralloc/nvgrfb.c:266: int ModeFormat = HAL_PIXEL_FORMAT_RGBA_8888;
dev->Base.common.tag = HARDWARE_DEVICE_TAG;
dev->Base.common.version = 0;
dev->Base.common.module = &mod->Base.common;
dev->Base.common.close = NvGrFbDevClose;
dev->Base.setSwapInterval = NvGrSetSwapInterval;
dev->Base.setUpdateRect = NULL; //NvGrSetUpdateRect;
dev->Base.compositionComplete = NvGrCompositionComplete;
dev->Base.post = NvGrPost;
#ifdef GRALLOC_FB_READ_SUPPORTED
dev->Base.read = NvGrFbRead;
#endif
...
{
...
=> int ModeFormat = HAL_PIXEL_FORMAT_RGBA_8888;
****************
mmc_cid_show: 这个函数用ctags不能查到，因为它是在一个宏里被定义的：
/scp:bhj@r889:/home/bhj/src/theatre-p2/kernel/drivers/mmc/core/mmc.c:275: MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
return err;
...
=> MMC_DEV_ATTR(cid, "%08x%08x%08x%08x\n", card->raw_cid[0], card->raw_cid[1],
****************
/scp:[email protected]:/home/bhj/src/theatre-p2/frameworks/base/services/java/com/android/server/KeyInputQueue.java:980: System.arraycopy(ms.mNextData, 0,
public abstract class KeyInputQueue {
...
Thread mThread = new Thread("InputDeviceReader") {
public void run() {
...
while (true) {
try {
...
synchronized (mFirst) {
...
} else if (send || (ev.type == RawInputEvent.EV_SYN
...
if (mDisplay != null) {
...
if (ms.changed) {
...
} else {
...
=> System.arraycopy(ms.mNextData, 0,
****************
这里是分发nv daemon消息的地方。这里会根据不同的消息进行打印。
/scp:[email protected]:/home/bhj/src/theatre-p2/hardware/tegra/core/drivers/nvdispmgr/server/nvdispmgr.c:592: A(DisplaySetAttrs)
#define NV_DISP_MGR_LOG_COMMANDS 0
#if NV_DISP_MGR_LOG_COMMANDS
{
...
{
...
NvOsDebugPrintf(
...
=> A(DisplaySetAttrs)
****************
这个是NV的消息处理函数定义的地方，比如 DisplaySetAttrs 会被定义出一个 NvDispMgrDisplaySetAttrsImpl 的函数。
/scp:[email protected]:/home/bhj/src/theatre-p2/hardware/tegra/core/drivers/nvdispmgr/server/nvdispmgr.c:2691: cmd->InOutWords[1] = isvar?0:(sizeof(NvDispMgr##name##Out)/4)
//===========================================================================
// NvDispMgrInitFunctionTable() - initialize pointers to each function
//===========================================================================
void NvDispMgrInitFunctionTable(NvDispMgr *dm)
{
...
#define DM_FUNC(name,isvar) \
...
=> cmd->InOutWords[1] = isvar?0:(sizeof(NvDispMgr##name##Out)/4)
****************
2.6.36在reboot时和NV用的方法不一样
/scp:[email protected]:/home/bhj/src/theatre-p2/kernel/arch/arm/mach-tegra/include/mach/system.h:39: while(1);
static inline void arch_reset(char mode, const char *cmd)
{
...
=> while(1);
****************
/home/bhj/src/theatre/hardware/tegra/odm/ventana/odm_kit/query/nvodm_query.c:456: { NV_FALSE, 0, NV_FALSE, 0x4, NvOdmQuerySdioSlotUsage_Boot },
const NvOdmQuerySdioInterfaceProperty* NvOdmQueryGetSdioInterfaceProperty(
NvU32 Instance)
{
...
{
...
=> { NV_FALSE, 0, NV_FALSE, 0x4, NvOdmQuerySdioSlotUsage_Boot },
****************
这个地方在设所有的东东的clock？
/home/bhj/src/arena/hardware/tegra/core/drivers/nvrm/nvrmkernel/core/ap15/ap15rm_clock_misc.c:192: CLK_RST_CONTROLLER_CLK_SOURCE_##ClkModule##_0, reg); \
#define NVRM_SET_OSC_CLOCK(ClkModule, RstModule, H_L) \
do\
{\
...
{\
...
NV_REGW(rm, NVRM_MODULE_ID( NvRmPrivModuleID_ClockAndReset, 0 ), \
=> CLK_RST_CONTROLLER_CLK_SOURCE_##ClkModule##_0, reg); \
****************
/scp:[email protected]:/home/bhj/src/ics-sultan/vendor/marvell/generic/ttc_telephony/drivers/genlib/atparser/src/atParser.c:6290: if ((rc = utlExecuteBasicAtCommand(parser_p, " ", FALSE, ¶meter_value, string_off)) == utlAT_RESULT_CODE_ERROR)
* executing it when found. Note that as-per the standard, only the first
* collection of AT commands on each line is parsed and executed.
*---------------------------------------------------------------------------*/
static utlAtResultCode_T utlParseLine(const utlAtParser_P parser_p,
char *string_p,
const size_t string_off)
{
...
{
...
=> if ((rc = utlExecuteBasicAtCommand(parser_p, " ", FALSE, ¶meter_value, string_off)) == utlAT_RESULT_CODE_ERROR)
****************
这个文件里的 $a.int是怎么回事？请看接下来的分析
/home/bhj/src/antlr/code/walking/patterns/Simplify.g:20: zeroX : ^('*' a=INT b=INT {$a.int==0}?) -> $a ; // 0*x -> 0
=> zeroX : ^('*' a=INT b=INT {$a.int==0}?) -> $a ; // 0*x -> 0
****************
在编译之后，它会生成这样的代码：
/home/bhj/src/antlr/code/walking/patterns/Simplify.java:484: throw new FailedPredicateException(input, "zeroX", "$a.int==0");
public class Simplify extends TreeRewriter {
...
public final Simplify.zeroX_return zeroX() throws RecognitionException {
...
try {
...
if ( !(((a!=null?Integer.valueOf(a.getText()):0)==0)) ) {
...
=> throw new FailedPredicateException(input, "zeroX", "$a.int==0");
****************
所以我们只要在antlr的代码里grep Integer.valueOf就可以知道是怎么回事，并且我们可以发现除了.int之外更多的东西：
/home/bhj/src/antlr/antlr3-3.2/tool/src/main/resources/org/antlr/codegen/templates/Java/Java.stg:1294: "(<scope>!=null?Integer.valueOf(<scope>.getText()):0)"
lexerRuleLabelPropertyRef_pos(scope,attr) ::=
"(<scope>!=null?<scope>.getCharPositionInLine():-1)"
lexerRuleLabelPropertyRef_channel(scope,attr) ::=
"(<scope>!=null?<scope>.getChannel():0)"
lexerRuleLabelPropertyRef_index(scope,attr) ::=
"(<scope>!=null?<scope>.getTokenIndex():0)"
lexerRuleLabelPropertyRef_text(scope,attr) ::=
"(<scope>!=null?<scope>.getText():null)"
lexerRuleLabelPropertyRef_int(scope,attr) ::=
=> "(<scope>!=null?Integer.valueOf(<scope>.getText()):0)"
****************
这个nnmaildir--prepare是干什么的？
/usr/share/emacs/24.2/lisp/gnus/nnmaildir.el.gz:730: (setq group (nnmaildir--prepare nil gname)
(defun nnmaildir--scan (gname scan-msgs groups method srv-dir srv-ls)
(catch 'return
(let ((36h-ago (- (car (current-time)) 2))
...
=> (setq group (nnmaildir--prepare nil gname)