diff --git a/drivers/gpio/86duino-gpio.asm b/drivers/gpio/86duino-gpio.asm index 0f8bdf667..28eff1067 100644 --- a/drivers/gpio/86duino-gpio.asm +++ b/drivers/gpio/86duino-gpio.asm @@ -1,12 +1,10 @@ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;; -;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; +;; Copyright (C) KolibriOS team 2015-2017. All rights reserved. ;; ;; Distributed under terms of the GNU General Public License ;; ;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;driver sceletone - format PE DLL native 0.05 entry START @@ -23,11 +21,15 @@ entry START section '.flat' code readable writable executable -include 'proc32.inc' -include 'struct.inc' -include 'macros.inc' -include 'peimport.inc' -include 'fdo.inc' +include '../proc32.inc' +include '../struct.inc' +include '../macros.inc' +include '../peimport.inc' +include '../fdo.inc' + +GPIO_PORT_CONFIG_ADDR = 0xF100 +GPIO_DATA_ADDR = 0xF200 +ADC_ADDR = 0xFE00 proc START c, state:dword, cmdline:dword @@ -43,19 +45,59 @@ proc START c, state:dword, cmdline:dword jz .fail ; Set crossbar base address register in southbridge - invoke PciWrite16, [bus], [dev], 64h, 0x0A00 or 1 + invoke PciWrite16, [bus], [dev], 0x64, 0x0A00 or 1 ; Set GPIO base address register in southbridge - invoke PciWrite16, [bus], [dev], 62h, 0xF100 or 1 + invoke PciWrite16, [bus], [dev], 0x62, GPIO_PORT_CONFIG_ADDR or 1 + + DEBUGF 1,"Setting up ADC\n" + +; Enable ADC + invoke PciRead32, [bus], [dev], 0xBC + and eax, not (1 shl 28) + invoke PciWrite32, [bus], [dev], 0xBC, eax + + DEBUGF 1,"1\n" + +; Set ADC base address + mov ebx, [dev] + inc ebx + invoke PciRead16, [bus], ebx, 0xDE + or ax, 0x02 + invoke PciWrite16, [bus], ebx, 0xDE, eax + + invoke PciWrite32, [bus], ebx, 0xE0, 0x00500000 or ADC_ADDR + + DEBUGF 1,"2\n" + +; set up ADC + mov dx, ADC_ADDR + 1 + xor al, al + out dx, al + + DEBUGF 1,"3\n" + +; Empty FIFO + @@: + mov dx, ADC_ADDR + 2 ; Status register + in al, dx + test al, 0x01 ; FIFO ready + jz @f + mov dx, ADC_ADDR + 4 + in ax, dx + jmp @r + @@: + + DEBUGF 1,"4\n" ; Enable GPIO0-9 - mov dx, 0xf100 + mov dx, GPIO_PORT_CONFIG_ADDR + 0 ; General-Purpose I/O Data & Direction Decode Enable mov eax, 0x000001ff out dx, eax - mov ecx, 10 - mov dx, 0xf104 - mov ax, 0xf200 + mov ecx, 10 ; 10 GPIO ports total + mov dx, GPIO_PORT_CONFIG_ADDR + 4 ; General-Purpose I/O Port0 Data & Direction Decode Address + mov ax, GPIO_DATA_ADDR .gpio_init: ; Set GPIO data port base address out dx, ax @@ -71,18 +113,13 @@ proc START c, state:dword, cmdline:dword ; Set GPIO0 pin 0 as output mov al, 0x01 - mov dx, 0xf202 - out dx, al - -; Set GPIO4 pin 0 as output - mov al, 0x01 - mov dx, 0xf212 + mov dx, GPIO_DATA_ADDR + 0*4 + 2 out dx, al invoke RegService, my_service, service_proc ret -.fail: -.exit: + .fail: + .exit: xor eax, eax ret endp @@ -100,23 +137,49 @@ proc service_proc stdcall, ioctl:dword mov dword [eax], API_VERSION xor eax, eax ret -@@: + @@: cmp eax, 1 ; read GPIO P0 - jne @f - mov dx, 0xf200 + jne .no_gpioread + mov dx, GPIO_DATA_ADDR + 0x00 in al, dx ret -@@: + .no_gpioread: cmp eax, 2 ; write GPIO P0 - jne @f + jne .no_gpiowrite mov eax, [ebx + IOCTL.input] - mov dx, 0xf200 + mov dx, GPIO_DATA_ADDR + 0x00 out dx, al xor eax, eax ret -@@: -.fail: + .no_gpiowrite: + cmp eax, 3 ; read ADC channel 0 + jne .no_adcread + + mov dx, ADC_ADDR + 1 + mov al, 1 shl 3 ; Power down ADC + out dx, al + + mov dx, ADC_ADDR + 0 ; AUX channel select register + mov al, 1 shl 0 ; Enable AUX0 scan + out dx, al + + mov dx, ADC_ADDR + 1 + mov al, 1 shl 0 ; Single shot, no interrupts, start + out dx, al + + mov dx, ADC_ADDR + 2 + @@: + in al, dx + test al, 1 shl 0 ; data ready? + jz @r + + mov dx, ADC_ADDR + 4 + in ax, dx ; read the data and return to user call + DEBUGF 1, "ADC read: 0x%x\n", eax:4 + ret + .no_adcread: + .fail: or eax, -1 ret endp @@ -126,14 +189,14 @@ proc detect push ebx invoke GetPCIList mov ebx, eax -.next_dev: + .next_dev: mov eax, [eax+PCIDEV.fd] cmp eax, ebx jz .err mov edx, [eax+PCIDEV.vendor_device_id] mov esi, devices -@@: + @@: cmp dword [esi], 0 jz .next_dev cmp edx, [esi] @@ -142,7 +205,7 @@ proc detect add esi, STRIDE jmp @B -.found: + .found: movzx ebx, [eax+PCIDEV.devfn] mov [dev], ebx movzx ebx, [eax+PCIDEV.bus] @@ -151,7 +214,7 @@ proc detect inc eax pop ebx ret -.err: + .err: DEBUGF 1,"Could not find vortex86EX south bridge!\n" xor eax, eax pop ebx diff --git a/programs/demos/gpio/gpio.asm b/programs/demos/gpio/gpio.asm index e1a060936..9f770d62d 100644 --- a/programs/demos/gpio/gpio.asm +++ b/programs/demos/gpio/gpio.asm @@ -77,7 +77,13 @@ key: ; Keypress event handler and al, not 1 ; Clear bit 0 call write_gpio0 jmp event_wait - + @@: + cmp ah, 'e' + jne @f + call read_adc0 + mov ecx, eax + mcall 47, 0x00040100,,25 shl 16 + 25, 0x40000000, 0x00ffffff ; 4 digits hex number in ecx + jmp event_wait @@: jmp event_wait ; Just read the key, ignore it and jump to event_wait. @@ -149,6 +155,12 @@ write_gpio0: mov [IOCTL.input], eax mcall 68, 17, IOCTL ret + +; Read ADC0 +read_adc0: + mov [IOCTL.io_code], 3 + mcall 68, 17, IOCTL + ret ; ********************************************* ; ************* DATA AREA ***************** @@ -159,7 +171,8 @@ write_gpio0: text db "This is an 86DUINO GPIO demo program " db " " - db "press q/w to toggle GPIO 0 pin 0 ", 0 + db "press q/w to toggle GPIO 0 pin 0 " + db "or e to read ADC0 channel ", 0 title db "86Duino Example application", 0