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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
For the 2.0.0 release:
* bopti: remove image_t, leaving only bopti_image_t
* project: remove the compat branch
* gray: remove g*() functions
render-cg: expose vram buffers with dgetvram() and dsetvram()
2020-05-10 23:03:02 +02:00
* core: remove the boot log
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
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
Crucial, missing things.
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
! core: the four basic memory functions (with automated tests)
exc: add exception handlers, use them in the DMA This change introduces exception handlers that default to a fatal error with an on-screen description of the exception and some debugging information. It also adds the dprint() function as a definitely-needed helper and removes bootlog_unmapped() by using the exception handler for the fatal error display. (Also printf() is now required in all gint add-ins; this is sad, but space is not as much of a constraint as debugging.) Finally, the exception handler is used to handle an interrupt which is an exception in practice, the DMA address error. On fx-CG 50, additional DMA-related information is displayed on the screen. This is left out on fx-9860G as there is not enough space.
2019-09-03 22:15:00 +02:00
! core: use gint_switch() to handle TLB misses
bfile: solve stability issues on fx9860g and fxcg50 This commit improves the stability of gint_switch() in two ways: 1. Wait for hardware availability every time driver contexts are saved or reloaded; this solves crashes due to DMA use when gint takes control after a BFile call, since BFile_Create() (and possibly BFile_Write()) leave the DMA running after returning. 2. Remap the add-in after a switch, as apparently calling BFile functions causes some pages to be evicted. This is more noticeable on fxcg50 when the size of add-ins nears 220k. Additionally, dma_transfer_wait() has been updated to not sleep() unless it is certain that the conditions for wakeup are fulfilled, as this would sometimes freeze.
2020-05-31 15:52:00 +02:00
! core: recheck SH3 compatibility
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
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
Issues.
* #3 make drawing functions parameterized
* #5 add decent random number generation (TinyMT)
* #8 support fx-CG Manager
* #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
keyboard stdio: some fixes
2019-07-18 01:29:12 +02:00
Complementary elements on existing code.
bfile: solve stability issues on fx9860g and fxcg50 This commit improves the stability of gint_switch() in two ways: 1. Wait for hardware availability every time driver contexts are saved or reloaded; this solves crashes due to DMA use when gint takes control after a BFile call, since BFile_Create() (and possibly BFile_Write()) leave the DMA running after returning. 2. Remap the add-in after a switch, as apparently calling BFile functions causes some pages to be evicted. This is more noticeable on fxcg50 when the size of add-ins nears 220k. Additionally, dma_transfer_wait() has been updated to not sleep() unless it is certain that the conditions for wakeup are fulfilled, as this would sometimes freeze.
2020-05-31 15:52:00 +02:00
* gray: add gprint()
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*
* display: deprecate image_t and rename it bopti_image_t
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
exc: add exception handlers, use them in the DMA This change introduces exception handlers that default to a fatal error with an on-screen description of the exception and some debugging information. It also adds the dprint() function as a definitely-needed helper and removes bootlog_unmapped() by using the exception handler for the fatal error display. (Also printf() is now required in all gint add-ins; this is sad, but space is not as much of a constraint as debugging.) Finally, the exception handler is used to handle an interrupt which is an exception in practice, the DMA address error. On fx-CG 50, additional DMA-related information is displayed on the screen. This is left out on fx-9860G as there is not enough space.
2019-09-03 22:15:00 +02:00
* gray: find good values for more models than the Graph 35+E II
expose more platform-agnostic code May be useful later on for libraries such as libprof.
2019-09-04 14:44:48 +02:00
* dma: maybe relax the 4-byte size constraint for dma_memset()
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
* keyboard: think of extended functions
* 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
* display: use more of topti's assembler in drect()
* 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
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
* t6k11: check if dupdate() can be done by the DMA
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
Keep in mind.
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: 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
* prizm: don't hardcode stack address in fxcg50.ld
* prizm: detect P1 static RAM (stack) in TLB
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 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
* setjmp: more registers may need to be saved
* core: free heap when a task-switch results in leaving the app
* core: save and restore interrupt masks
* timer: make sure ETMU interrupts are disabled in ctx_restore()
* core: document the SH7305 PFC in <gint/mpu/pfc.h>
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
* Audio playback using Martin Poupe's method
* Serial communication [SCIF] [SCIFA]
* USB communication [USB]
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
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