diff options
Diffstat (limited to 'firmware/src')
-rw-r--r-- | firmware/src/dfu/dfu.c (renamed from firmware/src/os/dfu.c) | 12 | ||||
-rw-r--r-- | firmware/src/dfu/dfu.h (renamed from firmware/src/os/dfu.h) | 11 | ||||
-rw-r--r-- | firmware/src/os/main.c | 2 | ||||
-rw-r--r-- | firmware/src/os/pcd_enumerate.c | 5 | ||||
-rw-r--r-- | firmware/src/os/pcd_enumerate.h | 2 | ||||
-rw-r--r-- | firmware/src/start/Cstartup.S | 348 | ||||
-rw-r--r-- | firmware/src/start/Cstartup_app.S | 81 |
7 files changed, 268 insertions, 193 deletions
diff --git a/firmware/src/os/dfu.c b/firmware/src/dfu/dfu.c index f2bc0ca..f50b564 100644 --- a/firmware/src/os/dfu.c +++ b/firmware/src/dfu/dfu.c @@ -11,9 +11,8 @@ #include <usb_dfu.h> #include <lib_AT91SAM7.h> -#include <os/dfu.h> +#include <dfu/dfu.h> #include <os/pcd_enumerate.h> -#include <os/req_ctx.h> #include "../openpcd.h" /* If debug is enabled, we need to access debug functions from flash @@ -29,7 +28,7 @@ #endif -void __dfufunc udp_init(void) +static void __dfufunc udp_init(void) { /* Set the PLL USB Divider */ AT91C_BASE_CKGR->CKGR_PLLR |= AT91C_CKGR_USBDIV_1; @@ -107,7 +106,7 @@ static void __dfufunc udp_ep0_send_stall(void) static u_int8_t status; static u_int8_t *ptr; -static u_int8_t dfu_state; +static __dfudata u_int32_t dfu_state; static int __dfufunc handle_dnload(u_int16_t val, u_int16_t len) { @@ -149,7 +148,7 @@ static __dfufunc int handle_upload(u_int16_t val, u_int16_t len) { DEBUGE("upload "); if (len > AT91C_IFLASH_PAGE_SIZE - || ptr > AT91C_IFLASH_SIZE) { + || ptr > AT91C_IFLASH_SIZE - 0x1000) { /* Too big */ dfu_state = DFU_STATE_dfuERROR; status = DFU_STATUS_errADDRESS; @@ -226,7 +225,7 @@ int __dfufunc dfu_ep0_handler(u_int8_t req_type, u_int8_t req, handle_dnload(val, len); break; case USB_REQ_DFU_UPLOAD: - ptr = 0; + ptr = 0x00101000; /* Flash base address for app */ dfu_state = DFU_STATE_dfuUPLOAD_IDLE; handle_upload(val, len); break; @@ -667,6 +666,7 @@ void __dfufunc dfu_main(void) } const struct dfuapi __dfufunctab dfu_api = { + .udp_init = &udp_init, .ep0_send_data = &udp_ep0_send_data, .ep0_send_zlp = &udp_ep0_send_zlp, .ep0_send_stall = &udp_ep0_send_stall, diff --git a/firmware/src/os/dfu.h b/firmware/src/dfu/dfu.h index 8786044..992a4f2 100644 --- a/firmware/src/os/dfu.h +++ b/firmware/src/dfu/dfu.h @@ -13,8 +13,6 @@ #include <usb_ch9.h> #include <usb_dfu.h> -#include "dbgu.h" - /* USB DFU functional descriptor */ #define DFU_FUNC_DESC { \ .bLength = USB_DT_DFU_SIZE, \ @@ -38,9 +36,10 @@ .iInterface = 1, \ } -#define __dfufunc __attribute__ ((long_call, section (".dfu.func"))) -#define __dfustruct __attribute__ ((section (".dfu.struct"))) const #define __dfufunctab __attribute__ ((section (".dfu.functab"))) +#define __dfudata __attribute__ ((section (".data.shared"))) +#define __dfufunc +#define __dfustruct const #if 0 extern void __dfufunc udp_ep0_send_data(const char *data, u_int32_t length); @@ -55,9 +54,6 @@ extern static u_int8_t dfu_state; struct udp_pcd; #endif - -extern void __dfufunc udp_init(void); - struct _dfu_desc { struct usb_config_descriptor ucfg; struct usb_interface_descriptor uif[2]; @@ -65,6 +61,7 @@ struct _dfu_desc { }; struct dfuapi { + void (*udp_init)(void); void (*ep0_send_data)(const char *data, u_int32_t len); void (*ep0_send_zlp)(void); void (*ep0_send_stall)(void); diff --git a/firmware/src/os/main.c b/firmware/src/os/main.c index 4b7a7a2..878fdbf 100644 --- a/firmware/src/os/main.c +++ b/firmware/src/os/main.c @@ -3,7 +3,6 @@ #include <include/lib_AT91SAM7.h> #include <os/dbgu.h> #include <os/led.h> -#include <os/dfu.h> #include <os/main.h> #include <os/power.h> #include <os/pcd_enumerate.h> @@ -20,7 +19,6 @@ int main(void) _init_func(); /* initialize USB */ - udp_init(); udp_open(); // Enable User Reset and set its minimal assertion to 960 us diff --git a/firmware/src/os/pcd_enumerate.c b/firmware/src/os/pcd_enumerate.c index cded8c8..40bd88e 100644 --- a/firmware/src/os/pcd_enumerate.c +++ b/firmware/src/os/pcd_enumerate.c @@ -23,7 +23,7 @@ #include <os/pcd_enumerate.h> #include <os/req_ctx.h> -#include <os/dfu.h> +#include <dfu/dfu.h> #include "../openpcd.h" #include <os/dbgu.h> @@ -41,6 +41,7 @@ #ifdef CONFIG_DFU #define DFU_API_LOCATION ((const struct dfuapi *) 0x00102100) static const struct dfuapi *dfu = DFU_API_LOCATION; +#define udp_init dfu->udp_init #define udp_ep0_send_data dfu->ep0_send_data #define udp_ep0_send_zlp dfu->ep0_send_zlp #define udp_ep0_send_stall dfu->ep0_send_stall @@ -328,6 +329,7 @@ static void udp_irq(void) void udp_open(void) { DEBUGPCRF("entering"); + udp_init(); upcd.pUdp = AT91C_BASE_UDP; upcd.cur_config = 0; upcd.cur_rcv_bank = AT91C_UDP_RX_DATA_BK0; @@ -340,7 +342,6 @@ void udp_open(void) /* End-of-Bus-Reset is always enabled */ /* Set the Pull up resistor */ - AT91F_PIO_CfgOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP); AT91F_PIO_SetOutput(AT91C_BASE_PIOA, OPENPCD_PIO_UDP_PUP); } diff --git a/firmware/src/os/pcd_enumerate.h b/firmware/src/os/pcd_enumerate.h index 57ff88c..813243e 100644 --- a/firmware/src/os/pcd_enumerate.h +++ b/firmware/src/os/pcd_enumerate.h @@ -5,7 +5,7 @@ #include <sys/types.h> #include <asm/atomic.h> #include "openpcd.h" -#include "dfu.h" +#include <dfu/dfu.h> struct req_ctx; diff --git a/firmware/src/start/Cstartup.S b/firmware/src/start/Cstartup.S index e91fd86..e7d5714 100644 --- a/firmware/src/start/Cstartup.S +++ b/firmware/src/start/Cstartup.S @@ -76,165 +76,22 @@ .text .arm .section .vectram, "ax" -resetvecR: B resetvecR -undefvecR: B undefvecR -swivecR: B swivecR -pabtvecR: B pabtvecR -dabtvecR: B dabtvecR -rsvdvecR: B rsvdvecR -irqvecR: B IRQ_Handler_EntryR -fiqvecR: -FIQ_Handler_EntryR: - -/*- Switch in SVC/User Mode to allow User Stack access for C code */ -/* because the FIQ is not yet acknowledged*/ - -/*- Save and r0 in FIQ_Register */ - mov r9,r0 - ldr r0 , [r8, #AIC_FVR] - msr CPSR_c,#I_BIT | F_BIT | ARM_MODE_SVC - -/*- Save scratch/used registers and LR in User Stack */ - stmfd sp!, { r1-r3, r12, lr} - -/*- Branch to the routine pointed by the AIC_FVR */ - mov r14, pc - bx r0 - -/*- Restore scratch/used registers and LR from User Stack */ - ldmia sp!, { r1-r3, r12, lr} - -/*- Leave Interrupts disabled and switch back in FIQ mode */ - msr CPSR_c, #I_BIT | F_BIT | ARM_MODE_FIQ - -/*- Restore the R0 ARM_MODE_SVC register */ - mov r0,r9 - -/*- Restore the Program Counter using the LR_fiq directly in the PC */ - subs pc,lr,#4 - - .global IRQ_Handler_EntryR - .func IRQ_Handler_EntryR - -IRQ_Handler_EntryR: - -/*- Manage Exception Entry */ -/*- Adjust and save LR_irq in IRQ stack */ - sub lr, lr, #4 - stmfd sp!, {lr} - -/*- Save SPSR need to be saved for nested interrupt */ - mrs r14, SPSR - stmfd sp!, {r14} - -/*- Save and r0 in IRQ stack */ - stmfd sp!, {r0} - -/*- Write in the IVR to support Protect Mode */ -/*- No effect in Normal Mode */ -/*- De-assert the NIRQ and clear the source in Protect Mode */ - ldr r14, =AT91C_BASE_AIC - ldr r0 , [r14, #AIC_IVR] - str r14, [r14, #AIC_IVR] - -/*- Enable Interrupt and Switch in Supervisor Mode */ - msr CPSR_c, #ARM_MODE_SVC - -/*- Save scratch/used registers and LR in User Stack */ - stmfd sp!, { r1-r3, r12, r14} - -/*- Branch to the routine pointed by the AIC_IVR */ - mov r14, pc - bx r0 -/*- Restore scratch/used registers and LR from User Stack*/ - ldmia sp!, { r1-r3, r12, r14} - -/*- Disable Interrupt and switch back in IRQ mode */ - msr CPSR_c, #I_BIT | ARM_MODE_IRQ - -/*- Mark the End of Interrupt on the AIC */ - ldr r14, =AT91C_BASE_AIC - str r14, [r14, #AIC_EOICR] - -/*- Restore SPSR_irq and r0 from IRQ stack */ - ldmia sp!, {r0} - -/*- Restore SPSR_irq and r0 from IRQ stack */ - ldmia sp!, {r14} - msr SPSR_cxsf, r14 - -/*- Restore adjusted LR_irq from IRQ stack directly in the PC */ - ldmia sp!, {pc}^ - - .size IRQ_Handler_EntryR, . - IRQ_Handler_EntryR - .endfunc - - .global remap - .func remap -_remap: -# led1on -# Remap RAM to 0x00000000 for DFU + .global _remap_call_dfu + .func _remap_call_dfu +_remap_call_dfu: + led1on + /* Remap RAM to 0x00000000 for DFU */ ldr r1, =AT91C_BASE_AIC mov r2, #0x01 str r2, [r1, #AIC_MCR_RCR] + + ldr r4, =dfu_main + bx r4 - /* prepare c function call to main */ - mov r0, #0 /* argc = 0 */ - ldr lr,=exit - ldr r10,=main - -#ifdef CONFIG_DFU_SWITCH - /* check whether bootloader button is pressed */ - ldr r1, =AT91C_PMC_PCER - mov r2, #(1 << AT91C_ID_PIOA) - str r2, [r1] - - ldr r1, =AT91C_BASE_PIOA - ldr r2, [r1, #PIOA_PDSR] - tst r2, #PIO_BOOTLDR - ldrne r10,=dfu_main -#endif - - bx r10 - .size remap, . - remap + .size _remap_call_dfu, . - _remap_call_dfu .endfunc -/* "exit" dummy added by mthomas to avoid sbrk write read etc. needed - by the newlib default "exit" */ - .global exit - .func exit -exit: - b . - .size exit, . - exit - .endfunc - -/*--------------------------------------------------------------- -//* ?EXEPTION_VECTOR -//* This module is only linked if needed for closing files. -//*---------------------------------------------------------------*/ - .global AT91F_Default_FIQ_handler - .func AT91F_Default_FIQ_handler -AT91F_Default_FIQ_handler: - b AT91F_Default_FIQ_handler - .size AT91F_Default_FIQ_handler, . - AT91F_Default_FIQ_handler - .endfunc - - .global AT91F_Default_IRQ_handler - .func AT91F_Default_IRQ_handler -AT91F_Default_IRQ_handler: - b AT91F_Default_IRQ_handler - .size AT91F_Default_IRQ_handler, . - AT91F_Default_IRQ_handler - .endfunc - - .global AT91F_Spurious_handler - .func AT91F_Spurious_handler -AT91F_Spurious_handler: - b AT91F_Spurious_handler - .size AT91F_Spurious_handler, . - AT91F_Spurious_handler - .endfunc - - #;------------------------------------------------------------------------------ #;- Section Definition @@ -255,9 +112,6 @@ Top_Stack: * .text is used instead of .section .text so it works with arm-aout too. */ .section .reset .text - .global _startup - .func _startup -_startup: reset: /*------------------------------------------------------------------------------ //*- Exception vectors @@ -277,17 +131,108 @@ swivec: pabtvec: B pabtvec /* 0x0C Prefetch Abort */ dabtvec: - B dabtvec /* 0x10 Data Abort */ + b dabtvec /* 0x10 Data Abort */ rsvdvec: - B rsvdvec /* 0x14 reserved */ + b rsvdvec /* 0x14 reserved */ irqvec: - B irqvec /* 0x18 IRQ */ -fiqvec: - B fiqvec /* 0x1c FIQ */ + b IRQ_Handler_Entry /* 0x18 IRQ */ +fiqvec: + b FIQ_Handler_Entry + /* 0x1c FIQ */ +dfu_state_dummy: + .word 0 + +FIQ_Handler_Entry: + +/*- Switch in SVC/User Mode to allow User Stack access for C code */ +/* because the FIQ is not yet acknowledged*/ + +/*- Save and r0 in FIQ_Register */ + mov r9, r0 + ldr r0, [r8, #AIC_FVR] + msr CPSR_c, #I_BIT | F_BIT | ARM_MODE_SVC + + /*- Save scratch/used registers and LR in User Stack */ + stmfd sp!, { r1-r3, r12, lr} + + /*- Branch to the routine pointed by the AIC_FVR */ + mov r14, pc + bx r0 + + /*- Restore scratch/used registers and LR from User Stack */ + ldmia sp!, { r1-r3, r12, lr} + + /*- Leave Interrupts disabled and switch back in FIQ mode */ + msr CPSR_c, #I_BIT | F_BIT | ARM_MODE_FIQ + + /*- Restore the R0 ARM_MODE_SVC register */ + mov r0,r9 + + /*- Restore the Program Counter using the LR_fiq directly in the PC */ + subs pc, lr, #4 + + .global IRQ_Handler_Entry + .func IRQ_Handler_Entry + +IRQ_Handler_Entry: + + /*- Manage Exception Entry */ + /*- Adjust and save LR_irq in IRQ stack */ + sub lr, lr, #4 + stmfd sp!, {lr} + + /*- Save SPSR need to be saved for nested interrupt */ + mrs r14, SPSR + stmfd sp!, {r14} + + /*- Save and r0 in IRQ stack */ + stmfd sp!, {r0} + + /*- Write in the IVR to support Protect Mode */ + /*- No effect in Normal Mode */ + /*- De-assert the NIRQ and clear the source in Protect Mode */ + ldr r14, =AT91C_BASE_AIC + ldr r0 , [r14, #AIC_IVR] + str r14, [r14, #AIC_IVR] + + /*- Enable Interrupt and Switch in Supervisor Mode */ + msr CPSR_c, #ARM_MODE_SVC + + /*- Save scratch/used registers and LR in User Stack */ + stmfd sp!, { r1-r3, r12, r14} + + /*- Branch to the routine pointed by the AIC_IVR */ + mov r14, pc + bx r0 + + /*- Restore scratch/used registers and LR from User Stack*/ + ldmia sp!, { r1-r3, r12, r14} + + /*- Disable Interrupt and switch back in IRQ mode */ + msr CPSR_c, #I_BIT | ARM_MODE_IRQ + + /*- Mark the End of Interrupt on the AIC */ + ldr r14, =AT91C_BASE_AIC + str r14, [r14, #AIC_EOICR] + + /*- Restore SPSR_irq and r0 from IRQ stack */ + ldmia sp!, {r0} + + /*- Restore SPSR_irq and r0 from IRQ stack */ + ldmia sp!, {r14} + msr SPSR_cxsf, r14 + + /*- Restore adjusted LR_irq from IRQ stack directly in the PC */ + ldmia sp!, {pc}^ + + .size IRQ_Handler_Entry, . - IRQ_Handler_Entry + .endfunc .align 0 .RAM_TOP: .word Top_Stack + .global _startup + .func _startup InitReset: /*------------------------------------------------------------------------------ /*- Low level Init (PMC, AIC, ? ....) by C function AT91F_LowLevelInit @@ -348,16 +293,7 @@ InitReset: msr CPSR_c, #ARM_MODE_SVC mov r13, r0 /* Init stack Sup */ -/*- Relocate DFU .data section (Copy from ROM to RAM)*/ - ldr r1, =_etext_dfu - ldr r2, =_data_dfu - ldr r3, =_edata_dfu -LoopRelDFU: cmp r2, r3 - ldrlo r0, [r1], #4 - strlo r0, [r2], #4 - blo LoopRelDFU - -# Relocate .data section (Copy from ROM to RAM) +# Relocate DFU .data section (Copy from ROM to RAM) LDR R1, =_etext LDR R2, =_data LDR R3, =_edata @@ -366,7 +302,7 @@ LoopRel: CMP R2, R3 STRLO R0, [R2], #4 BLO LoopRel -# Clear .bss section (Zero init) +# Clear DFU .bss section (Zero init) MOV R0, #0 LDR R1, =__bss_start__ LDR R2, =__bss_end__ @@ -374,13 +310,75 @@ LoopZI: CMP R1, R2 STRLO R0, [R1], #4 BLO LoopZI - led1on + /* prepare c function call to main */ + mov r0, #0 /* argc = 0 */ + ldr lr, =exit + ldr r10, =0x00101000 - ldr r0, =_remap - bx r0 +#ifdef CONFIG_DFU_SWITCH + /* check whether bootloader button is pressed */ + ldr r1, =AT91C_PMC_PCER + mov r2, #(1 << AT91C_ID_PIOA) + str r2, [r1] + ldr r1, =AT91C_BASE_PIOA + ldr r2, [r1, #PIOA_PDSR] + tst r2, #PIO_BOOTLDR + bne _reloc_dfu_text +#endif + + bx r10 + +_reloc_dfu_text: + + ldr r1, =0x00100000 + ldr r2, =0x00200000 + ldr r3, =_etext + add r3, r3, r2 +loop_rel_t: cmp r2, r3 + ldrlo r4, [r1], #4 + strlo r4, [r2], #4 + blo loop_rel_t + ldr r4, =_remap_call_dfu + bx r4 + .size _startup, . - _startup .endfunc - + +/* "exit" dummy to avoid sbrk write read etc. needed by the newlib default "exit" */ + .global exit + .func exit +exit: + b . + .size exit, . - exit + .endfunc + +/*--------------------------------------------------------------- +//* ?EXEPTION_VECTOR +//* This module is only linked if needed for closing files. +//*---------------------------------------------------------------*/ + .global AT91F_Default_FIQ_handler + .func AT91F_Default_FIQ_handler +AT91F_Default_FIQ_handler: + b AT91F_Default_FIQ_handler + .size AT91F_Default_FIQ_handler, . - AT91F_Default_FIQ_handler + .endfunc + + .global AT91F_Default_IRQ_handler + .func AT91F_Default_IRQ_handler +AT91F_Default_IRQ_handler: + b AT91F_Default_IRQ_handler + .size AT91F_Default_IRQ_handler, . - AT91F_Default_IRQ_handler + .endfunc + + .global AT91F_Spurious_handler + .func AT91F_Spurious_handler +AT91F_Spurious_handler: + b AT91F_Spurious_handler + .size AT91F_Spurious_handler, . - AT91F_Spurious_handler + .endfunc + + + .end diff --git a/firmware/src/start/Cstartup_app.S b/firmware/src/start/Cstartup_app.S new file mode 100644 index 0000000..4a2187a --- /dev/null +++ b/firmware/src/start/Cstartup_app.S @@ -0,0 +1,81 @@ +/* Cstartup header for the application to be started by at91dfu + * (C) 2006 by Harald Welte <hwelte@hmw-consulting.de> */ + +//#define DEBUG_LL + +#ifdef DEBUG_LL +/* Debugging macros for switching on/off LED1 (green) */ +#define PIOA_PER 0xFFFFF400 +#define PIOA_OER 0xFFFFF410 +#define PIOA_SODR 0xFFFFF430 +#define PIOA_CODR 0xFFFFF434 +#define LED1 25 /* this only works on OpenPICC, not Olimex */ + .macro led1on + ldr r2, =PIOA_CODR + mov r1, #(1 << LED1) + str r1, [r2] + .endm + .macro led1off + ldr r2, =PIOA_SODR + mov r1, #(1 << LED1) + str r1, [r2] + .endm + .macro ledinit + ldr r2, =PIOA_PER + mov r1, #(1 << LED1) + str r1, [r2] + ldr r2, =PIOA_OER + str r1, [r2] + led1off + .endm +#else + .macro ledinit + .endm + .macro led1on + .endm + .macro led1off + .endm +#endif + + .global _startup + .func _startup +_startup: + /* Relocate .data section (copy from Flash to RAM) */ + ldr r1, =_etext + ldr r2, =_data + ldr r3, =_edata +loop_r: cmp r2, r3 + ldrlo r0, [r1], #4 + strlo r0, [r2], #4 + blo loop_r + + /* Clear .bss section (Zero init) */ + mov r0, #0 + ldr r1, =__bss_start__ + ldr r2, =__bss_end__ +loop_z: cmp r1, r2 + strlo r0, [r1], #4 + blo loop_z + + led1on + + /* prepare C function call to main */ + mov r0, #0 /* argc = 0 */ + ldr lr, =exit + ldr r10, =main + + bx r10 + + .size _startup, . - _startup + .endfunc + +/* "exit" dummy to avoid sbrk write read etc. needed by the newlib default "exit" */ + .global exit + .func exit +exit: + b . + .size exit, . - exit + .endfunc + + .end + |