-
-
-
/dev/null, /dev/zero drivers./dev/null, /dev/zero, and loop drivers.
+ -
-
-
-
Last Updated: August 19, 2011
+Last Updated: August 25, 2011
drivers/ |-- Makefile +|-- analog/ +| |-- Make.defs +| `-- (Common ADC and DAC driver source files) |-- bch/ | |-- Make.defs | `-- (bch driver source files) +|-- input/ +| |-- Make.defs +| `-- (Common touchscreen and keypad driver source files) +|-- lcd/ +| |-- Make.defs +| `-- (Common LCD driver source files) |-- mmcsd/ | |-- Make.defs -| `-- (mmcsd driver source files) +| `-- (Common MMC/SD card driver source files) +|-- mtd/ +| |-- Make.defs +| `-- (Common memory technology device driver source files) |-- net/ | |-- Make.defs -| `-- (net driver source files) +| `-- (Common network driver source files) +|-- sensors/ +| |-- Make.defs +| `-- (Common sensor driver source files) +|-- serial/ +| |-- Make.defs +| `-- (Common front-end character drivers for chip-specific UARTs) |-- usbdev/ | |-- Make.defs -| `-- (USB device driver source files) +| `-- (Common USB device driver source files) |-- usbhost/ | |-- Make.defs -| `-- (USB host driver source files) -`-- (common driver source files) +| `-- (Common USB host driver source files) +|-- wirelss/ +| |-- Make.defs +| `-- (Common wireless driver source files) +`-- (Various common driver source files)
graphics/ |-- Makefile +|-- nxbe/ +| |-- Make.defs +| `-- (NuttX graphics back-end (NXBE) source files) +|-- nxfont/ +| |-- Make.defs +| `-- (NuttX graphics font-related (NXFONT) source files) |-- nxglib/ | |-- Make.defs -| `-- (NuttX graphics library source files) -|-- nx/ +| `-- (NuttX graphics library (NXGL) source files) +|-- nxmu/ | |-- Make.defs -| `-- (NuttX X-server source files) +| `-- (NuttX graphics multi-user (NXMU) server source files) +|-- nxsu/ +| |-- Make.defs +| `-- (NuttX graphics single-user (NXSU) source files) `-- (common file system source files)@@ -1073,16 +1107,18 @@ graphics/ include/ |-- (standard header files) |-- arpa/ -| `-- (standard header files) +| `-- (Standard header files) +|-- cxx/ +| `-- (C++ standard header files) |-- net/ | `-- uip/ | `-- (uIP specific header files) |-- netinet/ -| `-- (standard header files) +| `-- (Standard header files) |-- nuttx/ -| `-- (nuttx specific header files) +| `-- (NuttX specific header files) `- sys/ - `-- (more standard header files) + `-- (More standard header files)
+ Normally the logic in this file builds to a single library (liblib.a).
+ However, if NuttX is built as a separately compiled kernel (with CONFIG_NUTTX_KERNEL=y), then the contents of this directory are built as two libraries:
+ One for use by user programs (libulib.a) and one for use only within the <kernel> space (libklib.a).
+
+ These user/kernel space libraries (along with the sycalls of nuttx/syscall) are needed to support the two differing protection domains.
+
+ Directory structure: +
++lib/ +|-- libgen/ +| `-- (Implementation of functions from libgen.h) +|-- math/ +| `-- (Implementation of functions from fixedmath.h) +|-- misc/ +| `-- (Implementation of miscellaneous library functions) +|-- mqueue/ +| `-- (Implementation of some functions from mqueue.h) +|-- net/ +| `-- (Implementation of network-related library functions) +|-- queue/ +| `-- (Implementation of functions from queue.h) +|-- sched/ +| `-- (Implementation of some functions from sched.h) +|-- semaphore/ +| `-- (Implementation of some functions from semaphore.h) +|-- signal/ +| `-- (Implementation of some functions from signal.h) +|-- stdio/ +| `-- (Implementation of functions from stdio.h) +|-- stdlib/ +| `-- (Implementation of functions from stdlib.h) +|-- string/ +| `-- (Implementation of functions from string.h) +|-- time/ +| `-- (Implementation of some functions from time.h) +`-- unistd/ + `-- (Implementation of some functions from unistd.h) +2.10 nuttx/libxx
@@ -1115,7 +1193,7 @@ include/
2.14 nuttx/syscall
- If NuttX is built as a separately compiled kernel (with CONFIG_NUTTX_KERNEL=y), + If NuttX is built as a separately compiled kernel (with
CONFIG_NUTTX_KERNEL=y), then the contents of this directory are built. This directory holds a syscall interface that can be used for communication between user-mode applications and the kernel-mode RTOS. @@ -3036,6 +3114,69 @@ extern void up_ledoff(int led); +6.3.11 Analog (ADC/DAC) Drivers
+
include/nuttx/analog/.
+ drivers/analog/.
+ arch/<architecture>/src/<chip> directory for the specific processor <architecture> and for the specific <chip> analog peripheral devices.
+ include/nuttx/analog/adc.h.
+ All structures and APIs needed to work with ADC drivers are provided in this header file.
+ This header file includes:
+ drivers/analog/adc.c.
+ The implementation of the common ADC character driver.
+ include/nuttx/analog/dac.h.
+ All structures and APIs needed to work with DAC drivers are provided in this header file.
+ This header file includes:
+ drivers/analog/dac.c.
+ The implementation of the common DAC character driver.
+ | diff --git a/drivers/README.txt b/drivers/README.txt index 871a713df9a..3c337956f9a 100644 --- a/drivers/README.txt +++ b/drivers/README.txt @@ -38,12 +38,23 @@ rwbuffer.c Subdirectories of this directory: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +analog/ + This directory holds implementations of analog device drivers. + This includes drivers for Analog to Digital Conversion (ADC) as + well as drivers for Digital to Analog Conversion (DAC). + See include/nuttx/analog/*.h for registration information. + bch/ Contains logic that may be used to convert a block driver into a character driver. This is the complementary conversion as that performed by loop.c. See include/nuttx/fs.h for registration information. +analog/ + This directory holds implementations of input device drivers. + This includes such things as touchscreen and keypad drivers. + See include/nuttx/input/*.h for registration information. + lcd/ Drivers for parallel and serial LCD and OLED type devices. These drivers support interfaces as defined in include/nuttx/lcd/lcd.h @@ -74,7 +85,7 @@ sensors/ Drivers for various sensors serial/ - Front-ends character drivers for chip-specific UARTs. This provide + Front-end character drivers for chip-specific UARTs. This provide some TTY-like functionality and are commonly used (but not required for) the NuttX system console. See also include/nuttx/serial.h @@ -84,6 +95,9 @@ usbdev/ usbhost/ USB host drivers. See also include/nuttx/usb/usbhost.h +wireless/ + Drivers for various wireless devices. + Skeleton Files ^^^^^^^^^^^^^^ diff --git a/drivers/analog/Make.defs b/drivers/analog/Make.defs index ed09c709a4b..8c868a84f0b 100644 --- a/drivers/analog/Make.defs +++ b/drivers/analog/Make.defs @@ -39,7 +39,7 @@ ifeq ($(CONFIG_DAC),y) -# Include the common ADC character driver +# Include the common DAC character driver CSRCS += dac.c diff --git a/syscall/README.txt b/syscall/README.txt index 7797c5781f1..42ef78b1f75 100644 --- a/syscall/README.txt +++ b/syscall/README.txt @@ -19,7 +19,7 @@ switch from user-mode to kernel-mode is accomplished using software interrupts (SWIs). SWIs are implemented differently and named differently by different manufacturers but all work essentially the same: A special instruction is executed in user-mode that causes a software generated -interrupt. The software generated interrrupt is caught within the kernel +interrupt. The software generated interrupt is caught within the kernel and handle in kernel-mode. Header Files @@ -117,7 +117,7 @@ database. Here the following definition is used: Proxy - A tiny bit of code that executes in the user space. A proxy has exactly the same function prototype as does the "real" function for which it proxies. However, it only serves to map the function - call into a syscall, marshalling all of the system call parameters + call into a syscall, marshaling all of the system call parameters as necessary. Stub - Another tiny bit of code that executes within the NuttX kernel |