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bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
For the 2.1.0 release:
* bopti: remove the deprecated image_t definition
drivers: update the model, replacing unload() with wait() The unload() function is not very relevant for drivers because hardware state is managed by ctx_save() and ctx_restore() and software state is managed by underlying drivers when there are dependencies. For now, it's been replaced with a wait() function that allows drivers to not be interrupted at any point. It is currently used by the DMA to wait for ongoing transfers to finish before disabling interrupts (which would prevent the transfer end from being detected) and switching in and out of gint.
2020-05-10 16:36:21 +02:00
* project: remove the compat branch
bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
Issues:
code review and display driver changes t6k11: use the gint array for variant detection r61524: use true triple buffering by default display: define DWIDTH and DHEIGHT display: add C_RGB(r,g,b) (0 ≤ r,g,b ≤ 31) [fxcg50]
2020-02-23 15:49:55 +01:00
* #10 support fx-CG 20
core: better bootlog API and implementation * Now uses topti instead of fxlib for text (including MMU failure) * Fit .pretext into 4k for everything before MMU succeeds * A short version of sprintf() for dynamic messages * Support a driver function, status(), to allow early driver debug * Expose more useful platform information in <gint/mpu.h> * Expose the first of a few CASIOWIN syscalls
2019-03-06 14:32:51 +01:00
bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
Extensions on existing code:
core: finalize TLB management in timer callbacks (STABLE) This change enables interrupts within timer callbacks, making it possible to load pages to MMU while handling a timer underflow. The call to TLB_LoadPTEH() has been moved directly into the VBR handler to avoid jumping to ILRAM for a short call on SH4. The TMU and ETMU handlers have been changed to callback through a new function gint_inth_callback() that saves the user bank and a few registers, then invokes the callback with interrupts enabled and in user bank; until now, callbacks were invoked with interrupts disabled and in kernel bank. Note that IMASK is still set so a callback can only be interrupted by a high-priority interrupt. A timer_wait() function has also been added to simplify tests that involve timers. Finally, the priority level of the TMU0 underflow interrupt has been set to 13 (as per the comments) instead of 7. This version is the first stable version that handles TLB misses transparently for large add-ins. It is suitable for every gint application.
2020-06-17 11:36:05 +02:00
* bopti: try to display fullscreen images with TLB access + DMA on fxcg50
core, tmu: add gint_switch(), return to menu, and improve timer code * Add the gint_switch() function which executes user-provided code from the system (CASIOWIN) context. * Added interrupt masks to the core context (should have been there long ago). * Added the gint_osmenu() function that switches out of gint to invoke GetKeyWait() and inject KEY_CTRL_MENU to trigger the main menu. This uses many CASIOWIN syscalls, but we don't care because gint is unloaded. Trickery is used to catch the key following the return in the add-in and/or display a new application frame before GetKeyWait() even finishes after coming back. This is only available on fx9860g for now. * Removed any public syscall definition to clear up interfaces. * Patched the DMA interruption problem in a weird way on fxcg50, a driver function will be used to do that properly eventually. * Changed the driver model to save driver contexts in preallocated spaces instead of on the stack for overall less risk. * Enabled return-to-menu with the MENU key on fx9860g in getkey(). * Changed the keyboard driver to emit releases before presses, as a return-to-menu acts as a press+release of different keys in a single driver frame, which confuses getkey(). * Fixed a really stupid bug in memcpy() that made the function really not work. Improvements in the timer driver: * Expose ETMU modules as SH7705_TMU and SH7305_TMU in <gint/mpu/tmu.h>. * Remove the timer_t structures, using SH*_ETMU and SH*_TMU instead. Only interrupt gate entries are left hardcoded. * Discovered that not only every write to the TCNT or TCR of an ETMU takes about 1/32k of a second (hinting at registers being powered by the same clock as the timer), but every write occuring while a previous write is pending is *lost*. This led to terrible bugs when switching ETMU contexts too fast in gint_switch(). * Removed an internal timer_address() function. * Overall simplified the handling of timers and the initialization step.
2020-05-10 14:03:41 +02:00
* gray: double-buffer gray settings and unify d* with g*
core: allow custom panics and exception catching This change introduces two new mechanismes for executing user code when an exception occurs. * This first is the custom panic message, which usually displays "System ERROR". The function that performs this task can now be user-defined. It is also run in user mode because the exception handler rte's into it, allowing it to execute any kind of interrupt-inducing task. The behavior is undefined if this function raises an exception. * The second is an exception-catching function, which (when set) is called every time an exception occurs, and is granted the chance of handling the exception to continue execution normally. It can be used in various ways, the most primitive of which is recording the exception and going back. It runs in interrupt mode and must not raise any kind of exception.
2019-09-13 08:10:30 +02:00
* topti: support unicode fonts
drivers: update the model, replacing unload() with wait() The unload() function is not very relevant for drivers because hardware state is managed by ctx_save() and ctx_restore() and software state is managed by underlying drivers when there are dependencies. For now, it's been replaced with a wait() function that allows drivers to not be interrupted at any point. It is currently used by the DMA to wait for ongoing transfers to finish before disabling interrupts (which would prevent the transfer end from being detected) and switching in and out of gint.
2020-05-10 16:36:21 +02:00
* dma: fx9860g support (need to switch it on and update the Makefile)
small improvements * Update TOTO list * Change the type of gint_vbr to comply with a new warning in GCC 9 * Add strcmp()
2019-09-19 15:59:38 +02:00
* core: try to leave add-in without reset in case of panic
TODO update and miscellaneous style
2019-07-17 00:34:10 +02:00
* hardware: fill in the HWMEM_FITTLB flag
* cpg: spread spectrum on fxcg50
core: better bootlog API and implementation * Now uses topti instead of fxlib for text (including MMU failure) * Fit .pretext into 4k for everything before MMU succeeds * A short version of sprintf() for dynamic messages * Support a driver function, status(), to allow early driver debug * Expose more useful platform information in <gint/mpu.h> * Expose the first of a few CASIOWIN syscalls
2019-03-06 14:32:51 +01:00
* core: use cmp/str for memchr()
TODO update and miscellaneous style
2019-07-17 00:34:10 +02:00
* r61524: brightness control and clean the file
bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
* core: review forgotten globals and MPU addresses not in <gint/mpu/*.h>
code review and display driver changes t6k11: use the gint array for variant detection r61524: use true triple buffering by default display: define DWIDTH and DHEIGHT display: add C_RGB(r,g,b) (0 ≤ r,g,b ≤ 31) [fxcg50]
2020-02-23 15:49:55 +01:00
* build: make the build system simpler (two targets are enough by default)
gray: add engine, basic drawing and text This revision includes the base gray engine with sensible starting defaults, gclear() and grect(), as well as gtext().
2019-07-20 18:31:46 +02:00
* core: run destructors when a task-switch results in leaving the app
code review and display driver changes t6k11: use the gint array for variant detection r61524: use true triple buffering by default display: define DWIDTH and DHEIGHT display: add C_RGB(r,g,b) (0 ≤ r,g,b ≤ 31) [fxcg50]
2020-02-23 15:49:55 +01:00
* core: invoke main menu instead of returning after main() ends
* core rtc: use qdiv10 to massively improve division performance
core: better bootlog API and implementation * Now uses topti instead of fxlib for text (including MMU failure) * Fit .pretext into 4k for everything before MMU succeeds * A short version of sprintf() for dynamic messages * Support a driver function, status(), to allow early driver debug * Expose more useful platform information in <gint/mpu.h> * Expose the first of a few CASIOWIN syscalls
2019-03-06 14:32:51 +01:00
Future directions.
TODO update and miscellaneous style
2019-07-17 00:34:10 +02:00
* A complete file system abstraction
core: better bootlog API and implementation * Now uses topti instead of fxlib for text (including MMU failure) * Fit .pretext into 4k for everything before MMU succeeds * A short version of sprintf() for dynamic messages * Support a driver function, status(), to allow early driver debug * Expose more useful platform information in <gint/mpu.h> * Expose the first of a few CASIOWIN syscalls
2019-03-06 14:32:51 +01:00
* Integrate overclock management
bopti: deprecate image_t, renamed to bopti_image_t
2020-06-01 12:11:59 +02:00
* Audio playback using TSWilliamson's libsnd method
* Serial communication
* USB communication, using Yatis' reverse-engineering of the module
drivers: update the model, replacing unload() with wait() The unload() function is not very relevant for drivers because hardware state is managed by ctx_save() and ctx_restore() and software state is managed by underlying drivers when there are dependencies. For now, it's been replaced with a wait() function that allows drivers to not be interrupted at any point. It is currently used by the DMA to wait for ongoing transfers to finish before disabling interrupts (which would prevent the transfer end from being detected) and switching in and out of gint.
2020-05-10 16:36:21 +02:00
* Make fx9860g projects work out of the box on fxcg50
core: accept large add-ins and setup TLB management (UNSTABLE) This change modifies the fx-CG 50 linker script to allow add-ins up to 2M and no longer complains about add-ins that don't fit in the TLB. It also exposes the __TLB_LoadPTEH() syscall (%003 on fx9860g, %00c on fxcg50) that answers TLB misses. This syscall can be called manually from an add-in to load some pages and seems to work without problem. However, this version does not provide any automatic TLB management, some key areas of the kernel are still under TLB and some user code (such as timer callbacks) is not! This version is suitable only for add-ins smaller than 220k!
2020-06-14 11:01:27 +02:00
* Use the DSP to enhance parallel computation
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