Completely trimmed avr build down to bare bones, only completing
enumeration with host, no vendor/class requests handled. move avr builds into avr_release dir move original source files into source/old for future reference. avr-size avr_kazzo.elf text data bss dec hex filename 1496 2 43 1541 605 avr_kazzo.elf
This commit is contained in:
Paul Molloy
parent
1ec74eaf68
commit
895bd6a737
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@ -8,6 +8,7 @@
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DEVICE = atmega164a
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DEVICE = atmega164a
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F_CPU = 16000000 # in Hz
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F_CPU = 16000000 # in Hz
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PROJ = avr_kazzo
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# Fuses and ISP programming handled in bootloader firmware build
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# Fuses and ISP programming handled in bootloader firmware build
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#SOURCES=$(wildcard source/**/*.c source/*.c)
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#SOURCES=$(wildcard source/**/*.c source/*.c)
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@ -21,22 +22,22 @@ COMPILE = avr-gcc -Wall -Os -DF_CPU=$(F_CPU) $(CFLAGS) -mmcu=$(DEVICE)
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# symbolic targets:
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# symbolic targets:
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help:
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help:
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@echo "This Makefile has no default rule. Use one of the following:"
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@echo "This Makefile has no default rule. Use one of the following:"
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@echo "make hex ............ to build main.hex"
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@echo "make hex ............ to build $(PROJ).hex"
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@echo "make program ........ windows flash firmware via bootloader"
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@echo "make program ........ windows flash firmware via bootloader"
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@echo "make program_unix ... unix flash firmware via bootloader"
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@echo "make program_unix ... unix flash firmware via bootloader"
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@echo "make clean .......... to delete objects and hex file"
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@echo "make clean .......... to delete objects and hex file"
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hex: main.hex
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hex: $(PROJ).hex
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program: main.hex
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program: $(PROJ).hex
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../bootloader/commandline/bootloadHID.exe -r $<
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../bootloader/commandline/bootloadHID.exe -r $<
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program_unix: main.hex
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program_unix: $(PROJ).hex
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../bootloader/commandline/bootloadHID -r $<
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../bootloader/commandline/bootloadHID -r $<
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# rule for deleting dependent files (those which can be built by Make):
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# rule for deleting dependent files (those which can be built by Make):
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clean:
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clean:
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rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.elf $(OBJECTS) main.s usbdrv_Vusb/oddebug.s usbdrv_Vusb/usbdrv.s source/shared_*
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rm -f $(PROJ).hex $(PROJ).lst $(PROJ).obj $(PROJ).cof $(PROJ).list $(PROJ).map $(PROJ).eep.hex $(PROJ).elf $(OBJECTS) $(PROJ).s usbdrv_Vusb/oddebug.s usbdrv_Vusb/usbdrv.s source/shared_*
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# Generic rule for compiling C files:
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# Generic rule for compiling C files:
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.c.o:
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.c.o:
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@ -56,22 +57,22 @@ clean:
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# file targets:
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# file targets:
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main.elf: shared $(OBJECTS)
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$(PROJ).elf: shared $(OBJECTS)
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$(COMPILE) -o main.elf $(OBJECTS)
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$(COMPILE) -o $(PROJ).elf $(OBJECTS)
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main.hex: main.elf
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$(PROJ).hex: $(PROJ).elf
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rm -f main.hex main.eep.hex
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rm -f $(PROJ).hex $(PROJ).eep.hex
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avr-objcopy -j .text -j .data -O ihex main.elf main.hex
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avr-objcopy -j .text -j .data -O ihex $(PROJ).elf $(PROJ).hex
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# avr-size -C --mcu=${DEVICE} main.elf
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# avr-size -C --mcu=${DEVICE} $(PROJ).elf
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avr-size main.elf
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avr-size $(PROJ).elf
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# debugging targets:
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# debugging targets:
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disasm: main.elf
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disasm: $(PROJ).elf
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avr-objdump -d main.elf
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avr-objdump -d $(PROJ).elf
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cpp:
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cpp:
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$(COMPILE) -E main.c
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$(COMPILE) -E $(PROJ).c
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#copy shared .h files which are used in host and firmware
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#copy shared .h files which are used in host and firmware
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shared:
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shared:
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|
||||||
:1015E00089E893E00E94410BCC5FCC3019F08FEF7B
|
|
||||||
:1015F00080930201C093030184E199B1947131F4A5
|
|
||||||
:101600008150D9F71092990310929303DF91CF91F3
|
|
||||||
:1016100008958091190187FFAFCFCE010E94FE0986
|
|
||||||
:101620008F3F21F48EE180930301A6CF882309F434
|
|
||||||
:10163000A3CF10920201A0CFE9E8F3E0DC012C2F48
|
|
||||||
:101640003D9131932150E1F7C1CFE9E6F0E080818F
|
|
||||||
:1016500082608083E89A0895A82FB92F80E090E0F7
|
|
||||||
:1016600041E050EA609530E009C02D9182279795BE
|
|
||||||
:10167000879510F084279527305EC8F36F5FA8F335
|
|
||||||
:101680000895EADF8D939D930895CF93CFB7CF93BD
|
|
||||||
:10169000DF93C3954C9BE9F74C9B0BC04C9B09C057
|
|
||||||
:1016A0004C9B07C04C9B05C04C9B03C04C9B01C08E
|
|
||||||
:1016B00089C06F93C0919503DD27C456DC4F2F93EB
|
|
||||||
:1016C00065E54C9B03C02F916F91E6CF0F931F935D
|
|
||||||
:1016D0004F9320E040E15F9309B1047104FB27F9C7
|
|
||||||
:1016E0003F9350E03BE039C0147140642F77012FE5
|
|
||||||
:1016F0005F5F1EC0406819B114712F7752501FC030
|
|
||||||
:10170000406409B12F770471D1F15F5F00C023C03D
|
|
||||||
:10171000406219B12F77147191F15F5F00C025C04D
|
|
||||||
:1017200004711027515012F45D5F0000115027958D
|
|
||||||
:101730002C3F19B1C8F614710127015027952C3F91
|
|
||||||
:10174000C8F64227499309B1047110274F7311500D
|
|
||||||
:1017500027952C3FA8F64695469519B1147179F056
|
|
||||||
:101760000127015027952C3F98F66B5A60F33150B2
|
|
||||||
:1017700009B1B0F600C011E01CBB002717C03B50F8
|
|
||||||
:101780003195C31BD04011E01CBB0881033CF9F02C
|
|
||||||
:101790000B34E9F0209193031981110F1213EDCF4F
|
|
||||||
:1017A000093651F10D3211F0013E39F700939A03D9
|
|
||||||
:1017B0003F915F914F911F910F912F916F91CCB3FA
|
|
||||||
:1017C000C0FD67CFDF91CF91CFBFCF91189520910A
|
|
||||||
:1017D0009A03222369F310919803112339F53430C9
|
|
||||||
:1017E0003AF13093980320939403109195033BE0D2
|
|
||||||
:1017F000311B309395031CC0009198030130B4F461
|
|
||||||
:101800000AE53091030134FD14C000930301C8E8D8
|
|
||||||
:10181000D3E013C0052710E000C000000BB91AC0C8
|
|
||||||
:10182000052710E0221F1DC010E021C04AE502C0BC
|
|
||||||
:1018300032ED432FC4E1D0E032E01AB114615C9A7A
|
|
||||||
:101840000BB11AB954E120E865E320FF05270BB975
|
|
||||||
:10185000279517951C3FF0F66695B8F7B1F720FF6E
|
|
||||||
:1018600005270BB9279517951C3FD0F62795179597
|
|
||||||
:1018700017FF052700001C3F0BB9B0F629913A95D8
|
|
||||||
:1018800019F70B7E10919903110FC651D0400BB977
|
|
||||||
:1018900011F01093930311E01CBB00611AB11B7E81
|
|
||||||
:1018A000402F4B7E54E05A95F1F70BB91AB94BB95A
|
|
||||||
:1018B0007FCF9EE088E10FB6F894A89580936000F2
|
|
||||||
:1018C0000FBE909360000E94250B549A80E08150D7
|
|
||||||
:1018D00051F454980E9450047894A8950E94260AC6
|
|
||||||
:1018E0000E940F03FACFA895EFE9FFE03197F1F7D7
|
|
||||||
:1018F00000C00000ECCFEE0FFF1F0590F491E02D2B
|
|
||||||
:061900000994F894FFCFEA
|
|
||||||
:101906006F03FF5AE80448052205F504100536055D
|
|
||||||
:00000001FF
|
:00000001FF
|
||||||
|
|
|
||||||
|
|
@ -3,9 +3,9 @@
|
||||||
#include <util/delay.h>
|
#include <util/delay.h>
|
||||||
|
|
||||||
#include "usbdrv.h"
|
#include "usbdrv.h"
|
||||||
#include "io.h"
|
//#include "io.h"
|
||||||
#include "pinport.h"
|
//#include "pinport.h"
|
||||||
#include "buffer.h"
|
//#include "buffer.h"
|
||||||
|
|
||||||
int main(void)
|
int main(void)
|
||||||
{
|
{
|
||||||
|
|
@ -39,7 +39,7 @@ int main(void)
|
||||||
usbDeviceConnect();
|
usbDeviceConnect();
|
||||||
|
|
||||||
//intialize i/o and LED to pullup state
|
//intialize i/o and LED to pullup state
|
||||||
io_reset();
|
// io_reset();
|
||||||
|
|
||||||
//enable interrupts
|
//enable interrupts
|
||||||
sei();
|
sei();
|
||||||
|
|
@ -67,6 +67,6 @@ int main(void)
|
||||||
//+ cpu operations that can't be hid behind flash wait time
|
//+ cpu operations that can't be hid behind flash wait time
|
||||||
//another thought would be to call usbPoll mid programming
|
//another thought would be to call usbPoll mid programming
|
||||||
//a few times to prevent incoming data from being delayed too long
|
//a few times to prevent incoming data from being delayed too long
|
||||||
update_buffers();
|
// update_buffers();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,72 @@
|
||||||
|
#include <avr/interrupt.h>
|
||||||
|
#include <avr/wdt.h>
|
||||||
|
#include <util/delay.h>
|
||||||
|
|
||||||
|
#include "usbdrv.h"
|
||||||
|
#include "io.h"
|
||||||
|
#include "pinport.h"
|
||||||
|
#include "buffer.h"
|
||||||
|
|
||||||
|
int main(void)
|
||||||
|
{
|
||||||
|
|
||||||
|
//set watch dog timer with 1 second timer
|
||||||
|
wdt_enable(WDTO_1S);
|
||||||
|
/* Even if you don't use the watchdog, turn it off here. On newer devices,
|
||||||
|
* the status of the watchdog (on/off, period) is PRESERVED OVER RESET!
|
||||||
|
*/
|
||||||
|
/* RESET status: all port bits are inputs without pull-up.
|
||||||
|
* That's the way we need D+ and D-. Therefore we don't need any
|
||||||
|
* additional hardware initialization.
|
||||||
|
*/
|
||||||
|
|
||||||
|
//odDebugInit(); //intialize debuging printing via serial port
|
||||||
|
//DBG1(0x00, 0, 0); //debug serial op: main starts
|
||||||
|
|
||||||
|
//initialize V-usb driver before interupts enabled and entering main loop
|
||||||
|
usbInit();
|
||||||
|
//disconnect from host enforce re-enumeration, interupts must be disabled during this.
|
||||||
|
usbDeviceDisconnect();
|
||||||
|
|
||||||
|
//fake USB disconnect for over 250ms
|
||||||
|
uint8_t index = 0;
|
||||||
|
while(--index){ //loop 256 times
|
||||||
|
wdt_reset(); //keep wdt happy during this time
|
||||||
|
_delay_ms(1); //delay 256msec
|
||||||
|
}
|
||||||
|
|
||||||
|
//reconnect to host
|
||||||
|
usbDeviceConnect();
|
||||||
|
|
||||||
|
//intialize i/o and LED to pullup state
|
||||||
|
io_reset();
|
||||||
|
|
||||||
|
//enable interrupts
|
||||||
|
sei();
|
||||||
|
|
||||||
|
//=================
|
||||||
|
//MAIN LOOP
|
||||||
|
//=================
|
||||||
|
while (1) {
|
||||||
|
|
||||||
|
//pet the watch doggie to keep him happy
|
||||||
|
wdt_reset();
|
||||||
|
|
||||||
|
//must call at regular intervals no longer than 50msec
|
||||||
|
//checks for setup packets from what I understand
|
||||||
|
usbPoll();
|
||||||
|
|
||||||
|
//check buffer status' and instruct them to
|
||||||
|
//flash/dump as needed to keep data moving
|
||||||
|
//currently assuming this operation doesn't take longer
|
||||||
|
//than 50msec to meet usbPoll's req't
|
||||||
|
//considering using a timer counter interupt to call
|
||||||
|
//usbPoll more often but going to see how speed is
|
||||||
|
//impacted first..
|
||||||
|
//256Bytes * 20usec Tbp = 5.12msec programming time
|
||||||
|
//+ cpu operations that can't be hid behind flash wait time
|
||||||
|
//another thought would be to call usbPoll mid programming
|
||||||
|
//a few times to prevent incoming data from being delayed too long
|
||||||
|
update_buffers();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,334 @@
|
||||||
|
|
||||||
|
#include "usb.h"
|
||||||
|
|
||||||
|
//used to store success/error code of last transfer for debugging
|
||||||
|
static uint8_t usbWrite_status;
|
||||||
|
|
||||||
|
//USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]);
|
||||||
|
/* This function is called when the driver receives a SETUP transaction from
|
||||||
|
* the host which is not answered by the driver itself (in practice: class and
|
||||||
|
* vendor requests). All control transfers start with a SETUP transaction where
|
||||||
|
* the host communicates the parameters of the following (optional) data
|
||||||
|
* transfer. The SETUP data is available in the 'data' parameter which can
|
||||||
|
* (and should) be casted to 'usbRequest_t *' for a more user-friendly access
|
||||||
|
* to parameters.
|
||||||
|
*
|
||||||
|
* If the SETUP indicates a control-in transfer, you should provide the
|
||||||
|
* requested data to the driver. There are two ways to transfer this data:
|
||||||
|
* (1) Set the global pointer 'usbMsgPtr' to the base of the static RAM data
|
||||||
|
* block and return the length of the data in 'usbFunctionSetup()'. The driver
|
||||||
|
* will handle the rest. Or (2) return USB_NO_MSG in 'usbFunctionSetup()'. The
|
||||||
|
* driver will then call 'usbFunctionRead()' when data is needed. See the
|
||||||
|
* documentation for usbFunctionRead() for details.
|
||||||
|
*
|
||||||
|
* If the SETUP indicates a control-out transfer, the only way to receive the
|
||||||
|
* data from the host is through the 'usbFunctionWrite()' call. If you
|
||||||
|
* implement this function, you must return USB_NO_MSG in 'usbFunctionSetup()'
|
||||||
|
* to indicate that 'usbFunctionWrite()' should be used. See the documentation
|
||||||
|
* of this function for more information. If you just want to ignore the data
|
||||||
|
* sent by the host, return 0 in 'usbFunctionSetup()'.
|
||||||
|
*
|
||||||
|
* Note that calls to the functions usbFunctionRead() and usbFunctionWrite()
|
||||||
|
* are only done if enabled by the configuration in usbconfig.h.
|
||||||
|
*/
|
||||||
|
|
||||||
|
//typedef struct usbRequest{
|
||||||
|
// uchar bmRequestType;
|
||||||
|
// uchar bRequest;
|
||||||
|
// usbWord_t wValue;
|
||||||
|
// usbWord_t wIndex;
|
||||||
|
// usbWord_t wLength;
|
||||||
|
//}usbRequest_t;
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
||||||
|
|
||||||
|
//defined and controled by buffer.c
|
||||||
|
extern buffer *cur_usb_load_buff;
|
||||||
|
|
||||||
|
//cast incoming data into the the usb setup packet it is
|
||||||
|
setup_packet *spacket = (void *)data;
|
||||||
|
|
||||||
|
//8 Byte buffer to be used for returning error code and return values
|
||||||
|
//must be static so V-USB driver can still access after function return
|
||||||
|
static uint8_t rv[RETURN_BUFF_SIZE];
|
||||||
|
//rv[RV_ERR_IDX] contains opcode success/error code
|
||||||
|
//rv[1-7] available for return data, start with index 1
|
||||||
|
//rv[RETURN_BUFF_FIRST_IDX-RETURN_BUFFER_LAST_IDX]
|
||||||
|
|
||||||
|
/* (1) Set the global pointer 'usbMsgPtr' to the base of the static RAM data
|
||||||
|
* block and return the length of the data in 'usbFunctionSetup()'. The driver
|
||||||
|
* will handle the rest. Or (2) return USB_NO_MSG in 'usbFunctionSetup()'. The
|
||||||
|
* driver will then call 'usbFunctionRead()' when data is needed. See the
|
||||||
|
*/
|
||||||
|
//by default want to return some portion of the 8 byte rv "return value"
|
||||||
|
//buffer. If no return data requested from host rlen = 0, so this wouldn't matter
|
||||||
|
//Some dictionaries/opcodes that want to return larger buffers though
|
||||||
|
//this function will set usbMsgPtr to point to that larger buffer when supported
|
||||||
|
//avr-gcc doesn't like this and gives warning
|
||||||
|
//source/usb.c:64: warning: assignment makes integer from pointer without a cast
|
||||||
|
//tried casting it to usbMsgPtr
|
||||||
|
usbMsgPtr = (usbMsgPtr_t)rv;
|
||||||
|
|
||||||
|
//#if USB_CFG_LONG_TRANSFERS
|
||||||
|
// //number of bytes to return to host
|
||||||
|
// //16bit meets max possible 16KBytes with V-USB long transfers enabled
|
||||||
|
//uint16_t rlen = 0; //the speed loss doesn't make long transfers worth it for now
|
||||||
|
//#else
|
||||||
|
// //8bit is enough for 254 bit non-long xfrs
|
||||||
|
// //also gives ~0.7KBps speed up compared to 16bit rlen
|
||||||
|
uint8_t rlen = 0;
|
||||||
|
//#endif
|
||||||
|
|
||||||
|
//determine endpoint IN/OUT
|
||||||
|
if ( (spacket->bmRequestType & ENDPOINT_BIT) == ENDPOINT_IN ) {
|
||||||
|
//read from device request
|
||||||
|
//send error code and return value
|
||||||
|
rlen = 1; //min value of error code
|
||||||
|
} else {
|
||||||
|
//write to device request
|
||||||
|
//host doesn't want to waste time with reading back error codes
|
||||||
|
rlen = 0;
|
||||||
|
//must also come here if opcode has payload coming in data packets to follow
|
||||||
|
//in that case host would have to send follow up read request to get error code
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
switch(spacket->bRequest) {
|
||||||
|
case DICT_PINPORT:
|
||||||
|
switch (spacket->opcode) {
|
||||||
|
case PP_OPCODE_ONLY_MIN ... PP_OPCODE_ONLY_MAX:
|
||||||
|
rv[RV_ERR_IDX] = pinport_opcode_only( spacket->opcode );
|
||||||
|
break;
|
||||||
|
case PP_OPCODE_8BOP_MIN ... PP_OPCODE_8BOP_MAX:
|
||||||
|
rv[RV_ERR_IDX] = pinport_opcode_8b_operand(
|
||||||
|
spacket->opcode, spacket->operandLSB );
|
||||||
|
break;
|
||||||
|
case PP_OPCODE_16BOP_MIN ... PP_OPCODE_16BOP_MAX:
|
||||||
|
rv[RV_ERR_IDX] = pinport_opcode_16b_operand(
|
||||||
|
spacket->opcode, spacket->operandMSB, spacket->operandLSB );
|
||||||
|
break;
|
||||||
|
case PP_OPCODE_24BOP_MIN ... PP_OPCODE_24BOP_MAX:
|
||||||
|
rv[RV_ERR_IDX] = pinport_opcode_24b_operand( spacket->opcode,
|
||||||
|
spacket->miscdata, spacket->operandMSB, spacket->operandLSB );
|
||||||
|
break;
|
||||||
|
case PP_OPCODE_8BRV_MIN ... PP_OPCODE_8BRV_MAX:
|
||||||
|
rv[RV_ERR_IDX] = pinport_opcode_8b_return( spacket->opcode, &rv[RV_DATA0_IDX]);
|
||||||
|
rlen ++;
|
||||||
|
break;
|
||||||
|
default: //pinport opcode min/max definition error
|
||||||
|
rv[RV_ERR_IDX] = ERR_BAD_PP_OP_MINMAX;
|
||||||
|
}
|
||||||
|
break; //end of PINPORT
|
||||||
|
|
||||||
|
case DICT_IO:
|
||||||
|
switch (spacket->opcode) {
|
||||||
|
case IO_OPCODE_ONLY_MIN ... IO_OPCODE_ONLY_MAX:
|
||||||
|
rv[RV_ERR_IDX] = io_opcode_only( spacket->opcode );
|
||||||
|
break;
|
||||||
|
case IO_OPCODE_RTN_MIN ... IO_OPCODE_RTN_MAX:
|
||||||
|
rv[RV_ERR_IDX] = io_opcode_return(
|
||||||
|
spacket->opcode, &rv[RV_DATA0_IDX] );
|
||||||
|
rlen = 8;
|
||||||
|
break;
|
||||||
|
default: //io opcode min/max definition error
|
||||||
|
rv[RV_ERR_IDX] = ERR_BAD_IO_OP_MINMAX;
|
||||||
|
}
|
||||||
|
break; //end of IO
|
||||||
|
|
||||||
|
case DICT_NES:
|
||||||
|
switch (spacket->opcode) {
|
||||||
|
case NES_OPCODE_24BOP_MIN ... NES_OPCODE_24BOP_MAX:
|
||||||
|
rv[RV_ERR_IDX] = nes_opcode_24b_operand( spacket->opcode,
|
||||||
|
spacket->operandMSB, spacket->operandLSB, spacket->miscdata );
|
||||||
|
break;
|
||||||
|
case NES_OPCODE_16BOP_8BRV_MIN ... NES_OPCODE_16BOP_8BRV_MAX:
|
||||||
|
rv[RV_ERR_IDX] = nes_opcode_16b_operand_8b_return( spacket->opcode,
|
||||||
|
spacket->operandMSB, spacket->operandLSB, &rv[RV_DATA0_IDX]);
|
||||||
|
rlen++;
|
||||||
|
break;
|
||||||
|
default: //nes opcode min/max definition error
|
||||||
|
rv[RV_ERR_IDX] = ERR_BAD_NES_OP_MINMAX;
|
||||||
|
}
|
||||||
|
break; //end of NES
|
||||||
|
|
||||||
|
case DICT_SNES:
|
||||||
|
switch (spacket->opcode) {
|
||||||
|
case SNES_OPCODE_24BOP_MIN ... SNES_OPCODE_24BOP_MAX:
|
||||||
|
rv[RV_ERR_IDX] = snes_opcode_24b_operand( spacket->opcode,
|
||||||
|
spacket->operandMSB, spacket->operandLSB, spacket->miscdata );
|
||||||
|
break;
|
||||||
|
case SNES_OPCODE_24BOP_8BRV_MIN ... SNES_OPCODE_24BOP_8BRV_MAX:
|
||||||
|
rv[RV_ERR_IDX] = snes_opcode_24b_operand_8b_return( spacket->opcode,
|
||||||
|
spacket->miscdata, spacket->operandMSB, spacket->operandLSB, &rv[RV_DATA0_IDX]);
|
||||||
|
rlen++;
|
||||||
|
break;
|
||||||
|
default: //snes opcode min/max definition error
|
||||||
|
rv[RV_ERR_IDX] = ERR_BAD_SNES_OP_MINMAX;
|
||||||
|
}
|
||||||
|
break; //end of SNES
|
||||||
|
|
||||||
|
case DICT_BUFFER:
|
||||||
|
//just give buffer.c the setup packet and let it figure things out for itself
|
||||||
|
usbMsgPtr = (usbMsgPtr_t)buffer_usb_call( spacket, rv, &rlen );
|
||||||
|
break; //end of BUFFER
|
||||||
|
|
||||||
|
case DICT_USB:
|
||||||
|
//currently just a simple way to read back usbFunctionWrite status SUCCESS/ERROR
|
||||||
|
//if there are future status' to read back may have to create some functions
|
||||||
|
rv[RV_ERR_IDX] = SUCCESS;
|
||||||
|
rv[RV_DATA0_IDX] = usbWrite_status;
|
||||||
|
rv[RV_DATA0_IDX+1] = cur_usb_load_buff->last_idx;
|
||||||
|
rlen = 3;
|
||||||
|
break; //end of USB
|
||||||
|
|
||||||
|
case DICT_OPER:
|
||||||
|
//just give operation.c the setup packet and let it figure things out for itself
|
||||||
|
usbMsgPtr = (usbMsgPtr_t)operation_usb_call( spacket, rv, &rlen );
|
||||||
|
break; //end of OPER
|
||||||
|
|
||||||
|
default:
|
||||||
|
//request (aka dictionary) is unknown
|
||||||
|
rv[RV_ERR_IDX] = ERR_UNKN_DICTIONARY;
|
||||||
|
}
|
||||||
|
|
||||||
|
//TODO add check that verifies rlen == setup packet return lenght request
|
||||||
|
//current state has error checking somewhat embeded in the fact the host
|
||||||
|
//will detect when return length differs from requested
|
||||||
|
return rlen;
|
||||||
|
|
||||||
|
//need to return USB_NO_MSG for OUT transfers to make usbFunctionWrite called
|
||||||
|
|
||||||
|
//return USB_NO_MSG; //if want usbFunctionRead called during IN token data packets
|
||||||
|
//Don't have a use for usbFunctionRead yet.. Not expecting to anytime soon
|
||||||
|
//probably easier and perhaps faster to send cart dump commands and store rom image
|
||||||
|
//in a buffer to be returned here.
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
//USB_PUBLIC uchar usbFunctionRead(uchar *data, uchar len);
|
||||||
|
/* This function is called by the driver to ask the application for a control
|
||||||
|
* transfer's payload data (control-in). It is called in chunks of up to 8
|
||||||
|
* bytes each. You should copy the data to the location given by 'data' and
|
||||||
|
* return the actual number of bytes copied. If you return less than requested,
|
||||||
|
* the control-in transfer is terminated. If you return 0xff, the driver aborts
|
||||||
|
* the transfer with a STALL token.
|
||||||
|
* In order to get usbFunctionRead() called, define USB_CFG_IMPLEMENT_FN_READ
|
||||||
|
* to 1 in usbconfig.h and return 0xff in usbFunctionSetup()..
|
||||||
|
*/
|
||||||
|
//USB_PUBLIC uchar usbFunctionRead(uchar *data, uchar len) {
|
||||||
|
// //this function should only get called if usbFunctionSetup returns USB_NO_MSG
|
||||||
|
// return len;
|
||||||
|
//}
|
||||||
|
|
||||||
|
|
||||||
|
// V-USB description of this function:
|
||||||
|
//USB_PUBLIC uchar usbFunctionWrite(uchar *data, uchar len);
|
||||||
|
/* This function is called by the driver to provide a control transfer's
|
||||||
|
* payload data (control-out). It is called in chunks of up to 8 bytes. The
|
||||||
|
* total count provided in the current control transfer can be obtained from
|
||||||
|
* the 'length' property in the setup data. If an error occurred during
|
||||||
|
* processing, return 0xff (== -1). The driver will answer the entire transfer
|
||||||
|
* with a STALL token in this case. If you have received the entire payload
|
||||||
|
* successfully, return 1. If you expect more data, return 0. If you don't
|
||||||
|
* know whether the host will send more data (you should know, the total is
|
||||||
|
* provided in the usbFunctionSetup() call!), return 1.
|
||||||
|
* NOTE: If you return 0xff for STALL, 'usbFunctionWrite()' may still be called
|
||||||
|
* for the remaining data. You must continue to return 0xff for STALL in these
|
||||||
|
* calls.
|
||||||
|
* In order to get usbFunctionWrite() called, define USB_CFG_IMPLEMENT_FN_WRITE
|
||||||
|
* to 1 in usbconfig.h and return 0xff in usbFunctionSetup()..
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* Desc:USB Write routine for OUT transfers
|
||||||
|
* the V-USB drivers call this function on OUT tokens
|
||||||
|
* and provide upto 8 byte data packet's payload
|
||||||
|
* for payloads longer than 8Bytes this gets called multiple times
|
||||||
|
* until all bytes have been transferred. Real thing to understand
|
||||||
|
* is that this function gets called once per data packet (max 8bytes)
|
||||||
|
* based on USB 1.1 low speed standard.
|
||||||
|
* buffer.c is the govnerning module for what buffer gets filled
|
||||||
|
* Pre: buffer.c must have set current usb loading buffer with global var
|
||||||
|
* the current buffer must have enough room for incoming data
|
||||||
|
* possible to use mutliple buffers for a single transfer, but
|
||||||
|
* buffer.c must orchestrate the swap to new buffer object.
|
||||||
|
* buffer.c sets global incoming bytes remain so it can keep
|
||||||
|
* track of this function's progress
|
||||||
|
* buffer object must be initialized, allocated, and status USB_LOADING
|
||||||
|
* Post:usbWrite_status updated with SUCCESS/ERROR number
|
||||||
|
* incoming data packet copied to cur_usb_load_buff
|
||||||
|
* global incoming_bytes_remain updated
|
||||||
|
* cur_usb_load_buff cur_byte updated based on data length
|
||||||
|
* cur_usb_load_buff status updated when it's full
|
||||||
|
* Rtn: message to V-USB driver so it can respond to host
|
||||||
|
*/
|
||||||
|
|
||||||
|
//removing checks from this function speeds up transfers by ~1KBps
|
||||||
|
//this data is based on doing nothing with data once it arrives
|
||||||
|
//long transfers disabled, and using 254 byte transfers with 2 bytes stuffed in setup packet
|
||||||
|
// with checks: 512KByte = 18.7sec = 27.4KBps
|
||||||
|
// w/o checks: 512KByte = 17.9sec = 28.5KBps
|
||||||
|
// w/o checks: using 8bit rlen = 17.5sec = 29.2KBps
|
||||||
|
// with checks: using 8bit rlen = 18sec = 28.3KBps
|
||||||
|
//#define MAKECHECKS 0
|
||||||
|
|
||||||
|
USB_PUBLIC uchar usbFunctionWrite(uchar *data, uchar len) {
|
||||||
|
|
||||||
|
//defined and controled by buffer.c
|
||||||
|
extern buffer *cur_usb_load_buff;
|
||||||
|
extern uint8_t incoming_bytes_remain;
|
||||||
|
|
||||||
|
uint8_t data_cur = 0; //current incoming byte to copy
|
||||||
|
uint8_t buf_cur = cur_usb_load_buff->cur_byte; //current buffer byte
|
||||||
|
uint8_t *buf_data = cur_usb_load_buff->data; //current buffer data array
|
||||||
|
|
||||||
|
#ifdef MAKECHECKS
|
||||||
|
//check that current buffer's status is USB_LOADING
|
||||||
|
if (cur_usb_load_buff->status != USB_LOADING) {
|
||||||
|
usbWrite_status = ERR_OUT_CURLDBUF_STATUS;
|
||||||
|
return STALL;
|
||||||
|
}
|
||||||
|
//check that current buffer's has enough room
|
||||||
|
if ( ((cur_usb_load_buff->last_idx) + 1 - buf_cur) < len ) {
|
||||||
|
usbWrite_status = ERR_OUT_CURLDBUF_TO_SMALL;
|
||||||
|
return STALL;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//copy 1-8bytes of payload into buffer
|
||||||
|
while ( data_cur < len ) {
|
||||||
|
buf_data[buf_cur] = data[data_cur];
|
||||||
|
buf_cur++;
|
||||||
|
data_cur++;
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef MAKECHECKS
|
||||||
|
//need to account for the fact that cur_byte will roll over being 8bit value
|
||||||
|
if ( cur_usb_load_buff->last_idx == (cur_usb_load_buff->cur_byte + len - 1) ) {
|
||||||
|
//this signals to buffer.c so it can update cur_usb_load_buf
|
||||||
|
//and start tasking this buffer to programming
|
||||||
|
cur_usb_load_buff->status = USB_FULL;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
//update counters and status
|
||||||
|
cur_usb_load_buff->cur_byte += len;
|
||||||
|
incoming_bytes_remain -= len;
|
||||||
|
//usbWrite_status = SUCCESS;
|
||||||
|
|
||||||
|
//want this function to be as fast as possible, so buffer.c checks if
|
||||||
|
//the buffer is full 'behind the scenes' outside of this function.
|
||||||
|
|
||||||
|
|
||||||
|
if ( incoming_bytes_remain == 0 ) { //done with OUT transfer
|
||||||
|
//alternate to MAKECHECKS should be faster but require transfer sizes to match buffer size
|
||||||
|
cur_usb_load_buff->status = USB_FULL;
|
||||||
|
return PAYLD_DONE;
|
||||||
|
} else { //more data packets remain to complete OUT transfer
|
||||||
|
return NOT_DONE;
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
|
@ -0,0 +1,31 @@
|
||||||
|
#ifndef _usb_h
|
||||||
|
#define _usb_h
|
||||||
|
|
||||||
|
#include <avr/io.h>
|
||||||
|
|
||||||
|
#include "usbdrv.h"
|
||||||
|
#include "logic.h"
|
||||||
|
#include "types.h"
|
||||||
|
#include "shared_dictionaries.h"
|
||||||
|
#include "shared_errors.h"
|
||||||
|
#include "pinport.h"
|
||||||
|
#include "io.h"
|
||||||
|
#include "nes.h"
|
||||||
|
#include "snes.h"
|
||||||
|
#include "buffer.h"
|
||||||
|
|
||||||
|
#define ENDPOINT_BIT 0x80 //Bit 7 of bmRequest type determines endpoint
|
||||||
|
#define ENDPOINT_IN 0x80 //In: device-to-host.
|
||||||
|
#define ENDPOINT_OUT 0x00 //Out: host-to-device.
|
||||||
|
|
||||||
|
//usbFunctionWrite return values
|
||||||
|
//return 0xFF (-1) "STALL" if error
|
||||||
|
//return 1 if entire payload received successfully
|
||||||
|
//return 0 if more data expected to complete transfer
|
||||||
|
#define STALL 0xFF
|
||||||
|
#define PAYLD_DONE 1
|
||||||
|
#define NOT_DONE 0
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
@ -45,17 +45,17 @@ static uint8_t usbWrite_status;
|
||||||
USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
||||||
|
|
||||||
//defined and controled by buffer.c
|
//defined and controled by buffer.c
|
||||||
extern buffer *cur_usb_load_buff;
|
// extern buffer *cur_usb_load_buff;
|
||||||
|
//
|
||||||
//cast incoming data into the the usb setup packet it is
|
// //cast incoming data into the the usb setup packet it is
|
||||||
setup_packet *spacket = (void *)data;
|
// setup_packet *spacket = (void *)data;
|
||||||
|
//
|
||||||
//8 Byte buffer to be used for returning error code and return values
|
// //8 Byte buffer to be used for returning error code and return values
|
||||||
//must be static so V-USB driver can still access after function return
|
// //must be static so V-USB driver can still access after function return
|
||||||
static uint8_t rv[RETURN_BUFF_SIZE];
|
// static uint8_t rv[RETURN_BUFF_SIZE];
|
||||||
//rv[RV_ERR_IDX] contains opcode success/error code
|
// //rv[RV_ERR_IDX] contains opcode success/error code
|
||||||
//rv[1-7] available for return data, start with index 1
|
// //rv[1-7] available for return data, start with index 1
|
||||||
//rv[RETURN_BUFF_FIRST_IDX-RETURN_BUFFER_LAST_IDX]
|
// //rv[RETURN_BUFF_FIRST_IDX-RETURN_BUFFER_LAST_IDX]
|
||||||
|
|
||||||
/* (1) Set the global pointer 'usbMsgPtr' to the base of the static RAM data
|
/* (1) Set the global pointer 'usbMsgPtr' to the base of the static RAM data
|
||||||
* block and return the length of the data in 'usbFunctionSetup()'. The driver
|
* block and return the length of the data in 'usbFunctionSetup()'. The driver
|
||||||
|
|
@ -69,7 +69,7 @@ USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
||||||
//avr-gcc doesn't like this and gives warning
|
//avr-gcc doesn't like this and gives warning
|
||||||
//source/usb.c:64: warning: assignment makes integer from pointer without a cast
|
//source/usb.c:64: warning: assignment makes integer from pointer without a cast
|
||||||
//tried casting it to usbMsgPtr
|
//tried casting it to usbMsgPtr
|
||||||
usbMsgPtr = (usbMsgPtr_t)rv;
|
// usbMsgPtr = (usbMsgPtr_t)rv;
|
||||||
|
|
||||||
//#if USB_CFG_LONG_TRANSFERS
|
//#if USB_CFG_LONG_TRANSFERS
|
||||||
// //number of bytes to return to host
|
// //number of bytes to return to host
|
||||||
|
|
@ -81,6 +81,7 @@ USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
||||||
uint8_t rlen = 0;
|
uint8_t rlen = 0;
|
||||||
//#endif
|
//#endif
|
||||||
|
|
||||||
|
/*
|
||||||
//determine endpoint IN/OUT
|
//determine endpoint IN/OUT
|
||||||
if ( (spacket->bmRequestType & ENDPOINT_BIT) == ENDPOINT_IN ) {
|
if ( (spacket->bmRequestType & ENDPOINT_BIT) == ENDPOINT_IN ) {
|
||||||
//read from device request
|
//read from device request
|
||||||
|
|
@ -192,6 +193,7 @@ USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
||||||
//request (aka dictionary) is unknown
|
//request (aka dictionary) is unknown
|
||||||
rv[RV_ERR_IDX] = ERR_UNKN_DICTIONARY;
|
rv[RV_ERR_IDX] = ERR_UNKN_DICTIONARY;
|
||||||
}
|
}
|
||||||
|
*/
|
||||||
|
|
||||||
//TODO add check that verifies rlen == setup packet return lenght request
|
//TODO add check that verifies rlen == setup packet return lenght request
|
||||||
//current state has error checking somewhat embeded in the fact the host
|
//current state has error checking somewhat embeded in the fact the host
|
||||||
|
|
@ -275,6 +277,7 @@ USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]) {
|
||||||
|
|
||||||
USB_PUBLIC uchar usbFunctionWrite(uchar *data, uchar len) {
|
USB_PUBLIC uchar usbFunctionWrite(uchar *data, uchar len) {
|
||||||
|
|
||||||
|
/*
|
||||||
//defined and controled by buffer.c
|
//defined and controled by buffer.c
|
||||||
extern buffer *cur_usb_load_buff;
|
extern buffer *cur_usb_load_buff;
|
||||||
extern uint8_t incoming_bytes_remain;
|
extern uint8_t incoming_bytes_remain;
|
||||||
|
|
@ -330,5 +333,8 @@ USB_PUBLIC uchar usbFunctionWrite(uchar *data, uchar len) {
|
||||||
return NOT_DONE;
|
return NOT_DONE;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
*/
|
||||||
|
|
||||||
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -4,6 +4,7 @@
|
||||||
#include <avr/io.h>
|
#include <avr/io.h>
|
||||||
|
|
||||||
#include "usbdrv.h"
|
#include "usbdrv.h"
|
||||||
|
/*
|
||||||
#include "logic.h"
|
#include "logic.h"
|
||||||
#include "types.h"
|
#include "types.h"
|
||||||
#include "shared_dictionaries.h"
|
#include "shared_dictionaries.h"
|
||||||
|
|
@ -13,6 +14,7 @@
|
||||||
#include "nes.h"
|
#include "nes.h"
|
||||||
#include "snes.h"
|
#include "snes.h"
|
||||||
#include "buffer.h"
|
#include "buffer.h"
|
||||||
|
*/
|
||||||
|
|
||||||
#define ENDPOINT_BIT 0x80 //Bit 7 of bmRequest type determines endpoint
|
#define ENDPOINT_BIT 0x80 //Bit 7 of bmRequest type determines endpoint
|
||||||
#define ENDPOINT_IN 0x80 //In: device-to-host.
|
#define ENDPOINT_IN 0x80 //In: device-to-host.
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue