- Remove per-thread errno from the TCB structure (pterrno)
- Remove get_errno() and set_errno() as functions. The macros are still available as stubs and will be needed in the future if we need to access the errno from a different address environment (KERNEL mode).
- Add errno value to the tls_info_s structure definitions
- Move sched/errno to libs/libc/errno. Replace old TCB access to the errno with TLS access to the errno.
So call 'make EXTRAFLAGS=-Wno-cpp' could suppress the warnings with pre-processor
directive #warning in GCC.
Change-Id: Iaa618238924c9969bf91db22117b39e6d2fc9bb6
Signed-off-by: liuhaitao <liuhaitao@xiaomi.com>
Resolution of Issue 619 will require multiple steps, this part of the first step in that resolution: Every call to nxsem_wait_uninterruptible() must handle the return value from nxsem_wait_uninterruptible properly. This commit is for all I2C drivers under arch/.
arch/z80/src/ez80/ez80_timerisr.c: Correct a mismatch between the programmed reload value and the timer input clock frequency.
arch/z80/src/ez80/ez80f92.h: Correct error in timer input clock divider: Bits 2-3, not bits 3-4.
boards/z80/ez80/z20x/src/w25_main.c: Correct an uninitialized return value; private function was not declard static.
arch/z80/src/ez80/ez80f92_init.asm: Timer control register was not being cleared and, as a result, timer interrupts may have been already enabled when the CPU was started by the debugger. This would result in spurious interrupts and Unexpected Interrupt crashes.
arch/z80/src/comming/up_initialize.c: Fix a trivial typo.
While we are at it, change the license headers in all relevant files in the affected directories to the Apache 2.0 license. Run all affected files through nxstyle.
boards/z80/ez80/z20x: Increase RX buffer size to 4Kb, reduce BAUD to 2400 in w25boot configuration
arch/z80/src/ez80/ez80_serial.c: Reduce Rx FIFO trigger level for eZ80F92 to 1 so that will respond more quickly to incoming data.
boards/z80/ez80/z20x/src/w25_main.c: Improve user interface.
There is still an error occurring while downloading Intex HEX files to FLASH. That is unrelated to this and appears to be a problem libs/libc/hex2gbin/lib_hex2bin.c
arch/z80/src/ez80/ez80_timerisr.c: Fix an error that looks the file got damaged by a bad keystroke in the editor while a string was highlighted.
boards/z80/ez80/z20x/src/ez80_spi.c: Fix some bad conditional compilationi. Prevented W25 chip select from being initialized.
Commit 797e45d6bf attempted to reduce the frequency of SPI reconfiguration by keeping track of the current frequency and mode settings and changing these settings only when the new settings differ from the old settings.
However, the original commit neglected to save the new frequency setting and, hence, was not effective in what it was trying to do: Every time the SPI setfrequency() method was called, it still looked like a new frequency and the frequency was still reconfigured, even though it hadn't really changed.
arch/z80/src/ez80/ez80_spi.c: Add logic checks to eliminate unnecessary SPI reconfiguration.
arch/z80/src/ez80/ez80_timerisr.c and arch/z80/src/ez80/ez80f92.h: Fix numerous places where configurations began with CONFIGS_ instead of CONFIG_
arch/z80/src/ez80/ez80_spi.c: Do not configure SPI chip select pin. It is not used by the driver and configuring it just clobbers other usage of that pin. Add some additional debug outputs; correct some exiting debug outputs.
drivers/mtd/w25.c: Add some debug output.
boards/z80/ez80/z20x/src/ez80_w25.c: Correct SPI bus number used in initialization. Only SPI1 is supported.
arch/z80/src/ez80/ez80_timerisr.c: Some initial timer configuration fixes.
arch/z80/: include/ez80/irq.h, src/ez80/ez80f92_*.asm: Correct some comments related to vector address offsets.
boards/z80/ez80/z20x/scripts/z20x_loader.linkcmd: Fix RAM offset in linker script
Kconfig files. Repartition some functionality. Bootloader support will need to be provided in logic under arch/z80/src/ez80 so the critical configuration selections were moved the Kconfig file there.
arch/z80/src/ez80/ez80_i2c.h: Rename arch/z80/src/ez80/ez80f91_i2c.h. It is sharable by both ez80f91 and ez80f92.
arch/z80/src/ez80/: Add logic to perform an additional level of interrupt redirection. This is necessary because the the interrupt handling is part of the loader FLASH-based logic. In order to share interrupts with the program loaded into RAM by the loader, another layer or redirection is required to get control to the interrupt handlers in the loaded program. See ez809f2_loader.asm and ez80f92_program.asm
boards/z80/ez80/z20x/scripts: Reduce size of the interrupt re-direction buffer from 1Kb to 512b.
The SD boot loader was not satisfactory because 1) the SD slot is on an optional board and, hence, cannot be part of a fundamental solution. And 2) it is too big.
The only storage on borard is the Winbond W25 SPI-bsed FLASH. This commit adds support for a bootload to 1) read code in HEX format from a serial port and write it to the W25 FLASH, or 2) read code in binary form from the W25 FLASH into SRAM and execute the loaded program.
boards/z80/ez80/z20x/configs: Added w25boot configuration
boards/z80/ez80/z20x/src: Add bootloader logic, w25_main.c. Add logic to manage shared SRAM memory map so that the loaded program does not clobber the bootloader memory. Add logic to recover the bootloader memory into the heap after the loaded program as started.
boards/z80/ez80/z20x/scripts: Rework scripts and configuration to support a bootloader and program build. The boolloader cannot use all of SRAM; the program must not clobber the SRAM region used by the bootloader.
board/z80/ez80/*/scripts/Make.defs: Fix optimization definition use in assembly flags. It was using the compiler optimization settings instead of the assembler optimization settings. Hence, enabling optimization would could cause assembler command line errors.
arch/z80/src/ez80/Toolchain.defs: Back out some work arounds. Now compiler optimization flags can again set set without assembler command line errors.
boards/z80/ez80/z20x/README.txt: Trivial update to size/optimization discussion.
The eZ80F92 interrupt controller is very different from the eZ80F91. The eZ80F91 has:
1. Four byte interrupt vectors
2. The vector base address register is 16-bit so the vector table can lie in RAM
Whereas the eZ80F92 has:
1. Two byte interrupt vectors
2. An 8-bit vector base address
This means that the vectors must lie in the first 16-bits of FLASH and there must be a "trampoline" to get to interrupt handlers outside of the first 64-Kb of FLASH.
arch/z80/src/ez80/Toolchain.defs: Correct some CFLAGS when optimization suppressed.
arch/z80/src/ez80/Kconfig arch/z80/src/ez80/ez80_emac.c: Remove configuration option for selecting EMAC RAM address. This is duplicated and possibly conflicting. The correct address for the RAM is provided in the linker command file. The RAM should be configured once and using this single definitions.
arch/z80/src/ez80/ez80_startup.asm and arch/z80/src/ez80/ez80f9*_init.asm. Move RAM and FLAH intialization out of MCU-specific logic to common start-up logic. We cannot call any functions until SRAM is initialized and the stack is properly initialized because the return address is stored on the stack. Use internal SRAM for the IDLE stack to avoid the chicken'n'egg problem.
boards/z80/ez80/z20x/configs/sdboot/sdboot.zdsproj: Discuss build environments.
These makefiles set the the ZiLOG runtime libraries for the eZ80 parts. The setup was, however, conditioned on CONFIG_ARCH_EZ80_EZ80F91 and, so, was not working for the eZ80F92 part (CONFIG_ARCH_EZ80_EZ80F92).
With this change, the z20x board FINALLY builds and links correctly with no errors.
Don't use MCU selection from compiler. It appears that we must compile ez80f92 code as ez80f91 so the comiler MCU selection is incorrect. Instead, use the selected CPU part from the configuration.
arch/z80/src/ez80/Toolchain.defs: Update some CFLAGS to match CFLAGS from ZDS-II IDE. Apparently, we must say that the CPU is an eZ80F91 event when compiler for eZ80F92.
boards/z80/ez80/z20x: Update linker scripts.
* tools/zds/zds_Config.mk: Move boards/z80/ez80/scripts/eZ80_Config.mk to tools/zds/zds_Config.mk where it can be shared by other ZDS-II platforms.
* boards/z16/z16f: Duplicate changes for new ZDS-II support from ez80
* boards/z80/z8: Duplicate changes for new ZDS-II support from ez80
* arch/z16/src/z16f/Toolchain.defs: Create required Toolchain.defs file for Z16f
arch/z80/arc/ez80/Toolchain.sh: Move more common toolchain definitions from Make.defs.
boards/z80/ez80/scripts/eZ80_Config.mk: Move common defines that override tools/Config.mk to this new file.
This does not solve the ez80 build problem yet but does assure that when the solution is in place, it will automatically apply to all present and future ez80 configurations.
I was over-zealous in arch/z80/src/ez80/ez80f91_handlers.asm. I added space separatros around the '+' operators. Turns out that the ZDS-II assembler can't handle the spaces in that context.
The ez80f92 is similar to the currently supported ez80f91 except that is:
1. Has no PLL and has a maximum CPU frequency of only 20MHz
2. Has no Ethernet controller
3. Timers are different
4. Has no GPIO Port A
5. Timers are different
6. It comes in a smaller package
and other small differences.
This provided the architecture (only) support for the forthcoming z20x port.
And remove syslog_init_e because all initialization is later now and we don't
distinguish the initialition phase anymore after ramlog don't need special
initialize.
