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https://git.planet-casio.com/Lephenixnoir/gint.git
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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]
This commit is contained in:
Lephe
parent
b6f545e63c
commit
61da7debc8
27 changed files with 151 additions and 81 deletions
14
TODO
14
TODO
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@ -7,18 +7,24 @@ Crucial, missing things.
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Tests to run.
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* core: run the alignment/size automated tests for memory functions
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* topti: all charsets
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Issues.
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* #3 make drawing functions parameterized
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* #5 add decent random number generation (TinyMT)
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* #8 support fx-CG Manager
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* #9 add libimg
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* #10 support fx-CG 20
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Complementary elements on existing code.
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* make fx9860g projects work out of the box on fxcg50
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* topti: support unicode fonts
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* gray: find good values for more models than the Graph 35+E II
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* dma: maybe relax the 4-byte size constraint for dma_memset()
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* dma: fx9860g support (need to switch it on)
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* core: try to leave add-in without reset in case of panic
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* hardware: fill in the HWMEM_FITTLB flag
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* keyboard: think of extended functions
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* cpg: spread spectrum on fxcg50
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* bopti: blending modes for monochrome bitmaps (use topti assembler)
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* display: use more of topti's assembler in drect()
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* core: use cmp/str for memchr()
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* timer: try putting addresses in <gint/mpu/tmu.h>
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@ -26,10 +32,12 @@ Complementary elements on existing code.
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* t6k11: check if dupdate() can be done by the DMA
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Keep in mind.
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* build: make the build system simpler (two targets are enough by default)
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* core: run destructors when a task-switch results in leaving the app
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* core: invoke main menu instead of returning after main() ends
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* prizm: don't hardcode stack address in fxcg50.ld
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* prizm: detect P1 static RAM (stack) in TLB
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* core: prove and use qdiv10() instead of __sdivsi3
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* core rtc: use qdiv10 to massively improve division performance
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* setjmp: more registers may need to be saved
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* core: free heap when a task-switch results in leaving the app
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* core: save and restore interrupt masks
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@ -190,8 +190,8 @@ SECTIONS
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/*
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** RRAM sections
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** 8800e000:4k VBR space
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** 8800f000:4k .gint.data and .gint.bss
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** 8800e000:5k VBR space
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** 8800f400:3k .gint.data and .gint.bss
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*/
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/* VBR address: let's just start at the beginning of the RRAM area.
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12
fxcg50.ld
12
fxcg50.ld
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@ -16,10 +16,10 @@ MEMORY
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rom (rx): o = 0x00300000, l = 220k
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/* Static RAM; stack grows down from the end of this region.
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The first 0x2000 bytes are reserved by gint, see below */
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ram (rw): o = 0x08102000, l = 512k
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/* gint's VBR space, mentioned here for completeness */
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ram (rw): o = 0x08102000, l = 504k
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/* gint's VBR space, at the start of the user stack */
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vbr (rwx): o = 0x8c160000, l = 5k
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/* Some RAM region from P1 area; gint's data will reside here */
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/* gint's data resides in these few kilobytes before the user area */
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rram (rwx): o = 0x8c161400, l = 3k
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/* On-chip IL memory */
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ilram (rwx): o = 0xe5200000, l = 4k
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@ -117,7 +117,7 @@ SECTIONS
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_sbss = SIZEOF(.bss);
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/* Read-write data sextions going to RAM (.data and .data.*) */
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/* Read-write data sections going to RAM (.data and .data.*) */
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.data ALIGN(4) : ALIGN(4) {
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_ldata = LOADADDR(.data);
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_rdata = . ;
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@ -175,8 +175,8 @@ SECTIONS
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/*
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** gint-related sections
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** 8c160000:4k VBR space
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** 8c161000:4k .gint.data and .gint.bss
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** 8c160000:5k VBR space
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** 8c161400:3k .gint.data and .gint.bss
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*/
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/* VBR address: let's just start at the beginning of the RAM area.
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12
include/display/cg.h
Normal file
12
include/display/cg.h
Normal file
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@ -0,0 +1,12 @@
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//---
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// display:cg - Internal definitions for the display module on fxcg50
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//---
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#ifndef DISPLAY_CG
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#define DISPLAY_CG
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/* dvram_switch() - triple buffering switch
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Alternates VRAMs after a display update started. */
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void dvram_switch(void);
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#endif /* DISPLAY_CG */
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@ -15,6 +15,10 @@
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#include <gint/defs/types.h>
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/* Dimensions of the VRAM */
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#define DWIDTH 396
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#define DHEIGHT 224
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/* gint VRAM address. This value must always point to a 32-aligned bufer of
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size 177408. Any function can use it freely to perform rendering or store
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data when not drawing. Triple buffering is already implemented in gint, see
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@ -44,6 +48,10 @@ enum {
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C_NONE = -1,
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};
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/* RGB color maker. Takes three channels of value 0..31 each (the extra bit of
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green is not used). */
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#define C_RGB(r,g,b) (((r) << 11) | ((g) << 6) | (b))
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//---
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// Image rendering (bopti)
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//---
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@ -13,6 +13,10 @@
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#include <gint/defs/types.h>
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/* Dimensions of the VRAM */
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#define DWIDTH 128
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#define DHEIGHT 64
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/* gint VRAM address. This value must always point to a 4-aligned buffer of
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size 1024. Any function can use it freely to:
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- Use another video ram area (triple buffering or more, gray engine);
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@ -5,6 +5,7 @@
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#ifndef GINT_DMA
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#define GINT_DMA
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/* TODO: Enable DMA on fx-9860G */
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#ifdef FXCG50
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#include <gint/defs/types.h>
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@ -38,7 +38,7 @@
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typedef struct
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{
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/* Driver name */
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const char *name;
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char const *name;
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/* driver_sh3() - rectify driver initialization on SH3 platforms
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This function is called during driver initialization on SH3. It may
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@ -66,6 +66,10 @@ typedef struct
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macro of <defs/attributes.h> if it doesn't need to be initialized */
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void *sys_ctx;
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/* Stack context. This is a gint *internal* pointer used when switching
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in and out of the driver. Ignore it. */
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void *_stack_ctx;
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/* ctx_save() - save the driver's hardware support
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This function is provided by the driver to save the state of its
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hardware support (memory-mapped MPU registers, port state, etc).
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@ -84,7 +88,7 @@ typedef struct
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expected to be a short (max 21 bytes) string because only a few
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lines are available for all drivers.
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Returns a pointer to a string; a static buffer is suitable. */
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const char * (*status)(void);
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char const * (*status)(void);
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} GPACKED(4) gint_driver_t;
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@ -1,7 +1,7 @@
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//---
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// gint:drivers:iokbd - I/O ports-driven keyboard scanner
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//
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// This is for SH3 only. It reads key pressed from ports A/B/M.
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// This is for SH3 only. It reads key presses from ports A/B/M.
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//---
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#ifndef GINT_DRIVERS_IOKBD
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@ -42,7 +42,7 @@ void gint_panic_set(GNORETURN void (*panic)(uint32_t code));
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Please be aware that many exceptions are of re-execution type. When
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execution restarts after such an exception is handled, the offending
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instruction if re-executed. This can cause the exception handling mechanism
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instruction is re-executed. This can cause the exception handling mechanism
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to loop. Use gint_exc_skip() to skip over the offending instruction when
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needed. Whether an exception is of re-execution type depends on the
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exception code. */
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@ -80,7 +80,7 @@ int gint_intlevel(int intid, int level);
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When an interrupt request is accepted, the hardware jumps to a specific
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interrupt handler at an address that depends on the interrupt source.
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For safety, interrupt handlers should avoir referring to data from other
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For safety, interrupt handlers should avoid referring to data from other
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blocks because the arrangement of blocks at runtime depends on event codes.
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The assembler program will assume that consecutive blocks in the source code
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will be consecutive in memory, which is not always true. Avoiding cross-
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@ -90,11 +90,11 @@ int gint_intlevel(int intid, int level);
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This function allows anyone to replace any interrupt handler so make sure
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you're not interfering with usual interrupt assignments.
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The first parameter 'event_code' represents the event_code associated with
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the interrupt. If it's not a multiple of 0x20 then you're doing something
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wrong. The codes are normally platform-dependent, but gint always uses
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SH7305 codes: SH3 platforms have a translation table. See the documentation
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for a list of event codes and their associated interrupts.
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The first parameter event_code represents the event code associated with the
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interrupt. If it's not a multiple of 0x20 then you're doing something wrong.
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The codes are normally platform-dependent, but gint always uses SH7305
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codes: SH3 platforms have a translation table. See the documentation for a
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list of event codes and their associated interrupts.
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The handler function must be an interrupt handler: it must not raise
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exceptions, must end with 'rte', and it will use the kernel register bank.
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@ -124,7 +124,7 @@ void hw_detect(void);
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** Direct Memory Access Controller
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*/
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/* Nothing other than the HW_LOADED bit yet. Only valid on fxcg50 */
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/* Nothing other than the HW_LOADED bit yet */
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/*
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** Timer Unit
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@ -237,7 +237,8 @@ key_event_t getkey_opt(int options, volatile int *timeout);
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perfectly regular, rather than approximating the requested frequency.
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The system default is (500 ms, 125 ms). With the 128 Hz setting, this
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default is reached exactly without approximation.
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default is reached exactly without approximation. gint's default is (400 ms,
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40 ms) for more reactivity.
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@first Delay between key press and first repeat (no more than one hour)
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@next Delay between subsequent repeats (no more than one hour) */
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@ -20,7 +20,7 @@ typedef struct
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uint8_t month_day; /* Day of month (1..31) */
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uint8_t hours; /* Hour (0..23) */
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uint8_t minutes; /* Minute (0..59) */
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uint8_t seconds; // Second (0..59) */
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uint8_t seconds; /* Second (0..59) */
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} rtc_time_t;
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@ -46,10 +46,10 @@ src2obj = $(1:../src/%=src/%).o
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src2dep = $(1:../src/%=src/%).d
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# Source files
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# TODO: Enable the DMA on fx-9860G
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prune-fx := -name render-cg -prune -o -name dma -prune -o -name r61524 -prune
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prune-cg := -name render-fx -prune -o -name gray -prune -o -name t6k11 -prune
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src := $(shell find ../src \
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$(prune-$(CONFIG.TARGET)) \
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src := $(shell find ../src $(prune-$(CONFIG.TARGET)) \
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-o -name '*.[csS]' -print)
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src_obj := $(foreach s,$(src),$(call src2obj,$s))
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@ -71,7 +71,6 @@ as = $(CONFIG.TOOLCHAIN)-as
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ld = $(CONFIG.TOOLCHAIN)-ld
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ar = $(CONFIG.TOOLCHAIN)-ar
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objcopy = $(CONFIG.TOOLCHAIN)-objcopy
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conv = fxconv
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#
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@ -107,12 +106,12 @@ src/%.c.o: ../src/%.c src/%.c.d
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# Special files
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$(call src2obj,../src/font5x7.png): ../src/font5x7.png
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@ mkdir -p $(dir $@)
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$(call cmd_m,fxconv,font5x7.png)$(conv) -f $< -o $@ \
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$(call cmd_m,fxconv,font5x7.png) fxconv -f $< -o $@ \
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--fx --toolchain=$(CONFIG.TOOLCHAIN) name:gint_font5x7 \
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charset:ascii grid.size:5x7 grid.padding:1 grid.border:0
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$(call src2obj,../src/font8x9.png): ../src/font8x9.png
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@ mkdir -p $(dir $@)
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$(call cmd_m,fxconv,font8x9.png)$(conv) -f $< -o $@ \
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$(call cmd_m,fxconv,font8x9.png) fxconv -f $< -o $@ \
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--cg --toolchain=$(CONFIG.TOOLCHAIN) name:gint_font8x9 \
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charset:print grid.size:8x11 grid.padding:1 grid.border:0 \
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proportional:true
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@ -117,7 +117,7 @@ void gint_panic(uint32_t code)
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/* gint_panic_set(): Change the panic handler function */
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void gint_panic_set(GNORETURN void (*panic)(uint32_t code))
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{
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gint_exc_panic = panic;
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gint_exc_panic = panic ? panic : gint_default_panic;
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}
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/* gint_exc_catch(): Set a function to catch exceptions */
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@ -65,6 +65,20 @@ void hw_detect(void)
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gint[HWCPUPR] = PRR;
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}
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gint[HWCALC] = HWCALC_FX9860G_SH4;
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if(gint[HWMPU] == HWMPU_SH7337 || gint[HWMPU] == HWMPU_SH7355)
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{
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gint[HWCALC] = HWCALC_FX9860G_SH3;
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}
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/* Tell Graph 35+E II from OS version (this is accurate unless someone
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tweaks an OS file enough to de-correlate the version of the OS and
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the version of the display and storage memory drivers, which, let's
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be real, is enough for now.
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TODO: Try to detect Graph 35+E II from amount of ROM in BSC? */
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char *version = (void *)0x80010020;
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if(version[1] == '3') gint[HWCALC] = HWCALC_G35PE2;
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/* Detect RAM by checking if 8804'0000 is the same as 8800'0000. */
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volatile uint8_t *R4 = (void *)0x88040000;
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@ -163,7 +163,7 @@ int start(int isappli, int optnum)
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if(drv->init) drv->init();
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#ifdef GINT_BOOT_LOG
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const char *status = drv->status ? drv->status() : NULL;
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char const *status = drv->status ? drv->status() : NULL;
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bootlog_driver(drv->name, status);
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#endif
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}
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@ -125,7 +125,7 @@ void dma_transfer_wait(int channel)
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/* Wait for the channel to be disabled by the interrupt handler.
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When the source or the destination of the transfer is X, Y or IL
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memory, refrain from sleeping as this also stops the transfer. */
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memory, refrain from sleeping as this also stops the transfer! */
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int onchip = 0;
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if(ch->SAR >= 0xe5007000 && ch->SAR < 0xe5204000) onchip = 1;
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@ -223,11 +223,13 @@ void r61524_display(uint16_t *vram, int start, int height, int interrupts)
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/* Now roll! */
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if(interrupts)
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{
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/* If the previous transfer is still running, wait for it */
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dma_transfer_wait(0);
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/* Usa a normal, interrupt-based transfer */
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dma_transfer(0, DMA_32B, blocks, src, DMA_INC, dst, DMA_FIXED);
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/* Wait for it to finish */
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/* TODO: Allow r61524_display() to return early */
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dma_transfer_wait(0);
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/* Function returns early so that rendering can continue on
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another VRAM while the transfer is still being done */
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}
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else dma_transfer_noint(0, DMA_32B, blocks, src,DMA_INC,dst,DMA_FIXED);
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}
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@ -1,10 +1,15 @@
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#include <gint/display.h>
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#include <display/cg.h>
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//#include <gint/drivers/r61524.h>
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/* dupdate() - Push the video RAM to the display driver */
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void dupdate(void)
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{
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r61524_display(gint_vram, 0, 224, 1);
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/* The DMA is still running, so we need to switch VRAMs to avoid
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overwriting the data which is about to be sent. */
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dvram_switch();
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}
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/* dupdate_noint() - Push VRAM to the display without interrupts */
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@ -7,9 +7,20 @@ static uint16_t *scnd = (void *)0xac11b500;
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/* Shared VRAM pointer, the one exposed by <gint/display.h> */
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uint16_t *gint_vram = (void *)0xac0f0000;
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/* dvram() - Control video RAM address and triple buffering */
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/* dvram() - control video RAM address and triple buffering */
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void dvram(uint16_t *new_main, uint16_t *new_secondary)
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{
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if(gint_vram == main) gint_vram = new_main;
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else if(gint_vram == scnd) gint_vram = new_secondary;
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main = new_main;
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scnd = new_secondary;
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}
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/* dvram_switch() - triple buffering switch
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This function is not public, it is used only by dupdate(). */
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void dvram_switch(void)
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{
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if(gint_vram == main) gint_vram = scnd;
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else gint_vram = main;
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}
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@ -4,11 +4,11 @@
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/* dprint(): Display a formatted string */
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void dprint(int x, int y, int fg, int bg, char const *format, ...)
|
||||
{
|
||||
char str[256];
|
||||
char str[512];
|
||||
va_list args;
|
||||
|
||||
va_start(args, format);
|
||||
vsnprintf(str, 256, format, args);
|
||||
vsnprintf(str, 512, format, args);
|
||||
va_end(args);
|
||||
|
||||
dtext(x, y, str, fg, bg);
|
||||
|
|
|
|||
|
|
@ -27,8 +27,7 @@ GBSS struct {
|
|||
// Time management
|
||||
//---
|
||||
|
||||
/* int8(), int16()
|
||||
Converts BCD values to integers */
|
||||
/* int8(), int16() - convert BCD to integer */
|
||||
static int int8(uint8_t bcd)
|
||||
{
|
||||
return (bcd & 0x0f) + 10 * (bcd >> 4);
|
||||
|
|
@ -39,9 +38,8 @@ static int int16(uint16_t bcd)
|
|||
+ 1000 * (bcd >> 12);
|
||||
}
|
||||
|
||||
/* bcd8(), bcd16()
|
||||
Converts integer values to BCD
|
||||
TODO: Use some kind of qdiv() for bcd8() and bcd16()? */
|
||||
/* bcd8(), bcd16() - convert integer to BCD
|
||||
TODO: Use some kind of qdiv() for bcd8() and bcd16() */
|
||||
static uint8_t bcd8(int integer)
|
||||
{
|
||||
integer %= 100;
|
||||
|
|
|
|||
|
|
@ -383,9 +383,8 @@ static int digits_8(char *str, uint64_t n)
|
|||
|
||||
static int64_t load_i(int size, va_list *args)
|
||||
{
|
||||
/* All smaller types are promoeted to int so we can't read the
|
||||
explicitly. They have been converted and sign-extended we don't need
|
||||
to care what their size is, the result will remain the same */
|
||||
/* All smaller types are promoted to int wth sign extension, so we
|
||||
don't need to care about them. */
|
||||
if(size == 3) return va_arg(*args, long);
|
||||
if(size == 4) return va_arg(*args, long long);
|
||||
return va_arg(*args, int);
|
||||
|
|
|
|||
|
|
@ -15,7 +15,13 @@
|
|||
// Device specification sheet
|
||||
//---
|
||||
|
||||
/* Screen registers. Registers 8..11 and 13..15 must not be used! */
|
||||
/* This version number is 1 for the old T6K11 everyone knows, and 2 for the
|
||||
newer one found in the Graph 35+E II. Documentation is available only for
|
||||
version 1. Dumps of Bdisp_PutDisp_DD() are used to driver version 2. */
|
||||
static int t6k11_version = 1;
|
||||
|
||||
/* Screen registers on the original T6K11. Registers 8..11 and 13..15 are test
|
||||
registers and must not be used! */
|
||||
enum {
|
||||
reg_display = 0,
|
||||
reg_counter = 1,
|
||||
|
|
@ -52,15 +58,6 @@ GDATA static volatile uint8_t *sel = (void *)0xb4000000;
|
|||
/* RS = 1: Command data or vram data */
|
||||
GDATA static volatile uint8_t *cmd = (void *)0xb4010000;
|
||||
|
||||
/* variant() - check for the T6K11 variant that equips the Graph 35+E II
|
||||
TODO: At least detect some piece of Graph 35+E II hardware. */
|
||||
static int variant(void)
|
||||
{
|
||||
char os[11];
|
||||
__os_version(os);
|
||||
return (os[1] == '3');
|
||||
}
|
||||
|
||||
/* command() - send a command to set the value of a register
|
||||
@reg Register number
|
||||
@data Value to set in reg */
|
||||
|
|
@ -80,8 +77,6 @@ GINLINE static uint8_t status(void)
|
|||
@buf Buffer to take data from */
|
||||
GINLINE static void write_row(const uint8_t *buf)
|
||||
{
|
||||
*sel = variant() ? 10 : reg_data;
|
||||
|
||||
/* Unroll the loop for more speed */
|
||||
*cmd = *buf++;
|
||||
*cmd = *buf++;
|
||||
|
|
@ -109,33 +104,40 @@ GINLINE static void write_row(const uint8_t *buf)
|
|||
//---
|
||||
|
||||
/* t6k11_display() - send vram data to the LCD device */
|
||||
void t6k11_display(const void *vram, int y1, int y2, size_t stride)
|
||||
void t6k11_display_v1(const void *vram, int y1, int y2, size_t stride)
|
||||
{
|
||||
for(int y = y1; y < y2; y++)
|
||||
{
|
||||
if(variant())
|
||||
{
|
||||
command(8, y | 0x80);
|
||||
command(8, 4);
|
||||
}
|
||||
|
||||
else
|
||||
{
|
||||
/* Set the X-address register for this row */
|
||||
command(reg_xaddr, y | 0xc0);
|
||||
|
||||
/* Use Y-Up mode */
|
||||
command(reg_counter, cnt_yup);
|
||||
|
||||
/* Start counting Y from 0 */
|
||||
command(reg_yaddr, 0);
|
||||
}
|
||||
/* Set the X-address register for this row */
|
||||
command(reg_xaddr, y | 0xc0);
|
||||
/* Use Y-Up mode */
|
||||
command(reg_counter, cnt_yup);
|
||||
/* Start counting Y from 0 */
|
||||
command(reg_yaddr, 0);
|
||||
|
||||
/* Send the row's data to the device */
|
||||
*sel = reg_data;
|
||||
write_row(vram);
|
||||
vram += stride;
|
||||
}
|
||||
}
|
||||
void t6k11_display_v2(const void *vram, int y1, int y2, size_t stride)
|
||||
{
|
||||
for(int y = y1; y < y2; y++)
|
||||
{
|
||||
command(8, y | 0x80);
|
||||
command(8, 4);
|
||||
|
||||
*sel = 10;
|
||||
write_row(vram);
|
||||
vram += stride;
|
||||
}
|
||||
}
|
||||
void t6k11_display(const void *vram, int y1, int y2, size_t stride)
|
||||
{
|
||||
if(t6k11_version == 1) t6k11_display_v1(vram, y1, y2, stride);
|
||||
if(t6k11_version == 2) t6k11_display_v2(vram, y1, y2, stride);
|
||||
}
|
||||
|
||||
/* t6k11_contrast() - change the contrast setting */
|
||||
void t6k11_contrast(int contrast)
|
||||
|
|
@ -199,7 +201,7 @@ GBSS static ctx_t sys_ctx;
|
|||
|
||||
static void ctx_save(void *buf)
|
||||
{
|
||||
if(variant()) return;
|
||||
if(gint[HWCALC] == HWCALC_G35PE2) return;
|
||||
|
||||
ctx_t *ctx = buf;
|
||||
ctx->strd = status();
|
||||
|
|
@ -207,7 +209,7 @@ static void ctx_save(void *buf)
|
|||
|
||||
static void ctx_restore(void *buf)
|
||||
{
|
||||
if(variant()) return;
|
||||
if(gint[HWCALC] == HWCALC_G35PE2) return;
|
||||
|
||||
ctx_t *ctx = buf;
|
||||
|
||||
|
|
@ -227,6 +229,8 @@ static void ctx_restore(void *buf)
|
|||
static void init(void)
|
||||
{
|
||||
gint[HWDD] = HW_LOADED | HWDD_LIGHT;
|
||||
|
||||
if(gint[HWCALC] == HWCALC_G35PE2) t6k11_version = 2;
|
||||
}
|
||||
|
||||
//---
|
||||
|
|
|
|||
|
|
@ -250,8 +250,8 @@ static void driver_sh3(void)
|
|||
timers[0].tmu = (void *)0xfffffe94;
|
||||
timers[1].tmu = (void *)0xfffffea0;
|
||||
timers[2].tmu = (void *)0xfffffeac;
|
||||
/* We don't need to change the event code of ETMU0 since it's
|
||||
translated to the SH4 code by the interrupt handler */
|
||||
/* We must not change the event code of ETMU0 since it's translated to
|
||||
its SH4 counterpart by the interrupt handler */
|
||||
timers[3].tmu = (void *)0xa44c0030;
|
||||
|
||||
TSTR = (void *)0xfffffe92;
|
||||
|
|
@ -260,7 +260,7 @@ static void driver_sh3(void)
|
|||
|
||||
static void init(void)
|
||||
{
|
||||
/* Install the standard's TMU interrupt handlers */
|
||||
/* Install the standard TMU's interrupt handlers */
|
||||
void *h = gint_inthandler(0x400, inth_tmu, 128);
|
||||
|
||||
/* User information in interrupt handlers */
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue