kolibrios-gitea/drivers/audio/emu10k1x.asm

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                              ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License    ;;
;;                                                              ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

format PE DLL native 0.05
entry START

DEBUG           equ 1

API_VERSION     equ 0x01000100

IRQ_REMAP       equ 0
IRQ_LINE        equ 0


;irq 0,13 unavailable
;                   FEDCBA9876543210
VALID_IRQ       equ 1101111111111110b

CPU_FREQ        equ  2600d

BIT0  EQU 0x00000001
BIT1  EQU 0x00000002
BIT5  EQU 0x00000020
BIT10 EQU 0x00000400

VID_Creative      equ 0x1102

CTRL_CT0200       equ 0x0006  ; Dell OEM version (EMU10K1X)


CODEC_MASTER_VOL_REG         equ 0x02
CODEC_AUX_VOL                equ 0x04 ;
CODEC_PCM_OUT_REG            equ 0x18 ; PCM output volume
CODEC_EXT_AUDIO_REG          equ 0x28 ; extended audio
CODEC_EXT_AUDIO_CTRL_REG     equ 0x2a ; extended audio control
CODEC_PCM_FRONT_DACRATE_REG  equ 0x2c ; PCM out sample rate
CODEC_PCM_SURND_DACRATE_REG  equ 0x2e ; surround sound sample rate
CODEC_PCM_LFE_DACRATE_REG    equ 0x30 ; LFE sample rate


;EMU10K1(X) host controller registers set
;; common offsets
;; some definitions were borrowed from emu10k1 driver as they seem to be the same
;;**********************************************************************************************;;
;; PCI function 0 registers, address = <val> + PCIBASE0                                         ;;
;;**********************************************************************************************;;

PTR                     equ  0x00            ;; Indexed register set pointer register        ;;
                                                ;; NOTE: The CHANNELNUM and ADDRESS words can   ;;
                                                ;; be modified independently of each other.     ;;

DATA                    equ  0x04            ;; Indexed register set data register           ;;

IPR                     equ  0x08            ;; Global interrupt pending register            ;;
                                                ;; Clear pending interrupts by writing a 1 to   ;;
                                                ;; the relevant bits and zero to the other bits ;;
IPR_MIDITRANSBUFEMPTY   equ  0x00000001      ;; MIDI UART transmit buffer empty              ;;
IPR_MIDIRECVBUFEMPTY    equ  0x00000002      ;; MIDI UART receive buffer empty               ;;
IPR_CH_0_LOOP           equ  0x00000800      ;; Channel 0 loop                               ;;
IPR_CH_0_HALF_LOOP      equ  0x00000100      ;; Channel 0 half loop                          ;;
IPR_CAP_0_LOOP          equ  0x00080000      ;; Channel capture loop                         ;;
IPR_CAP_0_HALF_LOOP     equ  0x00010000      ;; Channel capture half loop                    ;;

INTE                    equ  0x0c            ;; Interrupt enable register                    ;;
INTE_MIDITXENABLE       equ  0x00000001      ;; Enable MIDI transmit-buffer-empty interrupts ;;
INTE_MIDIRXENABLE       equ  0x00000002      ;; Enable MIDI receive-buffer-empty interrupts  ;;
INTE_CH_0_LOOP          equ  0x00000800      ;; Channel 0 loop                               ;;
INTE_CH_0_HALF_LOOP     equ  0x00000100      ;; Channel 0 half loop                          ;;
INTE_CAP_0_LOOP         equ  0x00080000      ;; Channel capture loop                         ;;
INTE_CAP_0_HALF_LOOP    equ  0x00010000      ;; Channel capture half loop                    ;;

HCFG                    equ  0x14            ;; Hardware config register                     ;;

HCFG_LOCKSOUNDCACHE     equ  0x00000008      ;; 1 = Cancel bustmaster accesses to soundcache ;;
                                                ;; NOTE: This should generally never be used.   ;;
HCFG_AUDIOENABLE        equ  0x00000001      ;; 0 = CODECs transmit zero-valued samples      ;;
                                                ;; Should be set to 1 when the EMU10K1 is       ;;
                                                ;; completely initialized.                      ;;
GPIO                    equ  0x18            ;; Defaults: 00001080-Analog, 00001000-SPDIF.   ;;


AC97DATA                equ  0x1c            ;; AC97 register set data register (16 bit)     ;;

AC97ADDRESS             equ  0x1e            ;; AC97 register set address register (8 bit)   ;;

;;******************************************************************************************************;;
;; Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers                    ;;
;;******************************************************************************************************;;
PLAYBACK_LIST_ADDR      equ  0x00            ;; Base DMA address of a list of pointers to each period/size ;;
                                                ;; One list entry: 4 bytes for DMA address,
                                                 ;; 4 bytes for period_size << 16.
                                                 ;; One list entry is 8 bytes long.
                                                 ;; One list entry for each period in the buffer.
                                                 ;;
PLAYBACK_LIST_SIZE      equ  0x01            ;; Size of list in bytes << 19. E.g. 8 periods -> 0x00380000  ;;
PLAYBACK_LIST_PTR       equ  0x02            ;; Pointer to the current period being played ;;
PLAYBACK_DMA_ADDR       equ  0x04            ;; Playback DMA addresss ;;
PLAYBACK_PERIOD_SIZE    equ  0x05            ;; Playback period size ;;
PLAYBACK_POINTER        equ  0x06            ;; Playback period pointer. Sample currently in DAC ;;
PLAYBACK_UNKNOWN1       equ  0x07
PLAYBACK_UNKNOWN2       equ  0x08

;; Only one capture channel supported ;;
CAPTURE_DMA_ADDR        equ  0x10            ;; Capture DMA address ;;
CAPTURE_BUFFER_SIZE     equ  0x11            ;; Capture buffer size ;;
CAPTURE_POINTER         equ  0x12            ;; Capture buffer pointer. Sample currently in ADC ;;
CAPTURE_UNKNOWN         equ  0x13

;; From 0x20 - 0x3f, last samples played on each channel ;;

TRIGGER_CHANNEL         equ  0x40            ;; Trigger channel playback                     ;;
TRIGGER_CHANNEL_0       equ  0x00000001      ;; Trigger channel 0                            ;;
TRIGGER_CHANNEL_1       equ  0x00000002      ;; Trigger channel 1                            ;;
TRIGGER_CHANNEL_2       equ  0x00000004      ;; Trigger channel 2                            ;;
TRIGGER_CAPTURE         equ  0x00000100      ;; Trigger capture channel                      ;;

ROUTING                 equ  0x41            ;; Setup sound routing ?                        ;;
ROUTING_FRONT_LEFT      equ  0x00000001
ROUTING_FRONT_RIGHT     equ  0x00000002
ROUTING_REAR_LEFT       equ  0x00000004
ROUTING_REAR_RIGHT      equ  0x00000008
ROUTING_CENTER_LFE      equ  0x00010000

SPCS0                   equ  0x42            ;; SPDIF output Channel Status 0 register       ;;
SPCS1                   equ  0x43            ;; SPDIF output Channel Status 1 register       ;;
SPCS2                   equ  0x44            ;; SPDIF output Channel Status 2 register       ;;

SPCS_CLKACCYMASK        equ  0x30000000      ;; Clock accuracy                               ;;
SPCS_CLKACCY_1000PPM    equ  0x00000000      ;; 1000 parts per million                       ;;
SPCS_CLKACCY_50PPM      equ  0x10000000      ;; 50 parts per million                         ;;
SPCS_CLKACCY_VARIABLE   equ  0x20000000      ;; Variable accuracy                            ;;
SPCS_SAMPLERATEMASK     equ  0x0f000000      ;; Sample rate                                  ;;
SPCS_SAMPLERATE_44      equ  0x00000000      ;; 44.1kHz sample rate                          ;;
SPCS_SAMPLERATE_48      equ  0x02000000      ;; 48kHz sample rate                            ;;
SPCS_SAMPLERATE_32      equ  0x03000000      ;; 32kHz sample rate                            ;;
SPCS_CHANNELNUMMASK     equ  0x00f00000      ;; Channel number                               ;;
SPCS_CHANNELNUM_UNSPEC  equ  0x00000000      ;; Unspecified channel number                   ;;
SPCS_CHANNELNUM_LEFT    equ  0x00100000      ;; Left channel                                 ;;
SPCS_CHANNELNUM_RIGHT   equ  0x00200000      ;; Right channel                                ;;
SPCS_SOURCENUMMASK      equ  0x000f0000      ;; Source number                                ;;
SPCS_SOURCENUM_UNSPEC   equ  0x00000000      ;; Unspecified source number                    ;;
SPCS_GENERATIONSTATUS   equ  0x00008000      ;; Originality flag (see IEC-958 spec)          ;;
SPCS_CATEGORYCODEMASK   equ  0x00007f00      ;; Category code (see IEC-958 spec)             ;;
SPCS_MODEMASK           equ  0x000000c0      ;; Mode (see IEC-958 spec)                      ;;
SPCS_EMPHASISMASK       equ  0x00000038      ;; Emphasis                                     ;;
SPCS_EMPHASIS_NONE      equ  0x00000000      ;; No emphasis                                  ;;
SPCS_EMPHASIS_50_15     equ  0x00000008      ;; 50/15 usec 2 channel                         ;;
SPCS_COPYRIGHT          equ  0x00000004      ;; Copyright asserted flag -- do not modify     ;;
SPCS_NOTAUDIODATA       equ  0x00000002      ;; 0 = Digital audio, 1 = not audio             ;;
SPCS_PROFESSIONAL       equ  0x00000001      ;; 0 = Consumer (IEC-958), 1 = pro (AES3-1992)  ;;

SPDIF_SELECT            equ  0x45            ;; Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF ;;

;; This is the MPU port on the card                                                             ;;
MUDATA          equ  0x47
MUCMD           equ  0x48
MUSTAT          equ  MUCMD

;; From 0x50 - 0x5f, last samples captured ;;


SRV_GETVERSION        equ  0
DEV_PLAY              equ  1
DEV_STOP              equ  2
DEV_CALLBACK          equ  3
DEV_SET_BUFF          equ  4
DEV_NOTIFY            equ  5
DEV_SET_MASTERVOL     equ  6
DEV_GET_MASTERVOL     equ  7
DEV_GET_INFO          equ  8

struc AC_CNTRL              ;AC controller base class
{ .bus                dd ?
  .devfn              dd ?

  .vendor             dd ?
  .dev_id             dd ?
  .pci_cmd            dd ?
  .pci_stat           dd ?

  .codec_io_base      dd ?
  .codec_mem_base     dd ?

  .ctrl_io_base       dd ?
  .ctrl_mem_base      dd ?
  .cfg_reg            dd ?
  .int_line           dd ?

  .vendor_ids         dd ?    ;vendor id string
  .ctrl_ids           dd ?    ;hub id string

  .buffer             dd ?

  .notify_pos         dd ?
  .notify_task        dd ?

  .lvi_reg            dd ?
  .ctrl_setup         dd ?
  .user_callback      dd ?
  .codec_read16       dd ?
  .codec_write16      dd ?

  .ctrl_read8         dd ?
  .ctrl_read16        dd ?
  .ctrl_read32        dd ?

  .ctrl_write8        dd ?
  .ctrl_write16       dd ?
  .ctrl_write32       dd ?
}

struc CODEC                ;Audio Chip base class
{
  .chip_id            dd ?
  .flags              dd ?
  .status             dd ?

  .ac_vendor_ids      dd ?    ;ac vendor id string
  .chip_ids           dd ?    ;chip model string

  .shadow_flag        dd ?
                      dd ?

  .regs               dw ?     ; codec registers
  .reg_master_vol     dw ?     ;0x02
  .reg_aux_out_vol    dw ?     ;0x04
  .reg_mone_vol       dw ?     ;0x06
  .reg_master_tone    dw ?     ;0x08
  .reg_beep_vol       dw ?     ;0x0A
  .reg_phone_vol      dw ?     ;0x0C
  .reg_mic_vol        dw ?     ;0x0E
  .reg_line_in_vol    dw ?     ;0x10
  .reg_cd_vol         dw ?     ;0x12
  .reg_video_vol      dw ?     ;0x14
  .reg_aux_in_vol     dw ?     ;0x16
  .reg_pcm_out_vol    dw ?     ;0x18
  .reg_rec_select     dw ?     ;0x1A
  .reg_rec_gain       dw ?     ;0x1C
  .reg_rec_gain_mic   dw ?     ;0x1E
  .reg_gen            dw ?     ;0x20
  .reg_3d_ctrl        dw ?     ;0X22
  .reg_page           dw ?     ;0X24
  .reg_powerdown      dw ?     ;0x26
  .reg_ext_audio      dw ?     ;0x28
  .reg_ext_st         dw ?     ;0x2a
  .reg_pcm_front_rate dw ?     ;0x2c
  .reg_pcm_surr_rate  dw ?     ;0x2e
  .reg_lfe_rate       dw ?     ;0x30
  .reg_pcm_in_rate    dw ?     ;0x32
                      dw ?     ;0x34
  .reg_cent_lfe_vol   dw ?     ;0x36
  .reg_surr_vol       dw ?     ;0x38
  .reg_spdif_ctrl     dw ?     ;0x3A
                      dw ?     ;0x3C
                      dw ?     ;0x3E
                      dw ?     ;0x40
                      dw ?     ;0x42
                      dw ?     ;0x44
                      dw ?     ;0x46
                      dw ?     ;0x48
                      dw ?     ;0x4A
                      dw ?     ;0x4C
                      dw ?     ;0x4E
                      dw ?     ;0x50
                      dw ?     ;0x52
                      dw ?     ;0x54
                      dw ?     ;0x56
                      dw ?     ;0x58
                      dw ?     ;0x5A
                      dw ?     ;0x5C
                      dw ?     ;0x5E
  .reg_page_0         dw ?     ;0x60
  .reg_page_1         dw ?     ;0x62
  .reg_page_2         dw ?     ;0x64
  .reg_page_3         dw ?     ;0x66
  .reg_page_4         dw ?     ;0x68
  .reg_page_5         dw ?     ;0x6A
  .reg_page_6         dw ?     ;0x6C
  .reg_page_7         dw ?     ;0x6E
                      dw ?     ;0x70
                      dw ?     ;0x72
                      dw ?     ;0x74
                      dw ?     ;0x76
                      dw ?     ;0x78
                      dw ?     ;0x7A
  .reg_vendor_id_1    dw ?     ;0x7C
  .reg_vendor_id_2    dw ?     ;0x7E


  .reset              dd ?    ;virual
  .set_master_vol     dd ?
}

struc CTRL_INFO
{   .pci_cmd          dd ?
    .irq              dd ?
    .glob_cntrl       dd ?
    .glob_sta         dd ?
    .codec_io_base    dd ?
    .ctrl_io_base     dd ?
    .codec_mem_base   dd ?
    .ctrl_mem_base    dd ?
    .codec_id         dd ?
}

EVENT_NOTIFY    equ 0x00000200

section '.flat' code readable writable executable
include '../struct.inc'
include '../macros.inc'
include '../proc32.inc'
include '../peimport.inc'


proc START c uses ebx esi edi, state:dword, cmdline:dword

        cmp     [state], 1
        jne     .stop

     if DEBUG
        mov     esi, msgInit
        invoke  SysMsgBoardStr
     end if

        call    detect_controller
        test    eax, eax
        jz      .fail

     if DEBUG
        mov     esi, [ctrl.vendor_ids]
        invoke  SysMsgBoardStr
        mov     esi, [ctrl.ctrl_ids]
        invoke  SysMsgBoardStr
     end if

        call    init_controller
        test    eax, eax
        jz      .fail

        call    init_codec
        test    eax, eax
        jz      .fail

        call    setup_codec

        mov     esi, msgPrimBuff
        invoke  SysMsgBoardStr
        call    create_primary_buff
        mov     esi, msgDone
        invoke  SysMsgBoardStr

  if IRQ_REMAP
        pushf
        cli

        mov     ebx, [ctrl.int_line]
        in      al, 0xA1
        mov     ah, al
        in      al, 0x21
        test    ebx, ebx
        jz      .skip
        bts     ax, bx                          ;mask old line
.skip:
        bts     ax, IRQ_LINE                    ;mask new ine
        out     0x21, al
        mov     al, ah
        out     0xA1, al

        stdcall PciWrite8, 0, 0xF8, 0x61, IRQ_LINE      ;remap IRQ

        mov     dx, 0x4d0                       ;8259 ELCR1
        in      al, dx
        bts     ax, IRQ_LINE
        out     dx, al                          ;set level-triggered mode
        mov     [ctrl.int_line], IRQ_LINE
        popf
        mov     esi, msgRemap
        invoke  SysMsgBoardStr
  end if

        mov     eax, VALID_IRQ
        mov     ebx, [ctrl.int_line]
        mov     esi, msgInvIRQ
        bt      eax, ebx
        jnc     .fail_msg

        invoke  AttachIntHandler, ebx, ac97_irq, dword 0
        stdcall create

.reg:
        invoke  RegService, sz_sound_srv, service_proc
        ret
.fail:
     if DEBUG
        mov     esi, msgFail
        invoke  SysMsgBoardStr
     end if
        xor     eax, eax
        ret
.fail_msg:
        invoke  SysMsgBoardStr
        xor     eax, eax
        ret
.stop:
        call    stop
        xor     eax, eax
        ret
endp

handle     equ  IOCTL.handle
io_code    equ  IOCTL.io_code
input      equ  IOCTL.input
inp_size   equ  IOCTL.inp_size
output     equ  IOCTL.output
out_size   equ  IOCTL.out_size

align 4
proc service_proc stdcall, ioctl:dword

        mov     edi, [ioctl]
        mov     eax, [edi+io_code]

        cmp     eax, SRV_GETVERSION
        jne     @F
        mov     eax, [edi+output]
        cmp     [edi+out_size], 4
        jne     .fail

        mov     [eax], dword API_VERSION
        xor     eax, eax
        ret
@@:
        cmp     eax, DEV_PLAY
        jne     @F
     if DEBUG
        mov     esi, msgPlay
        invoke  SysMsgBoardStr
     end if
        call    play
        ret
@@:
        cmp     eax, DEV_STOP
        jne     @F
     if DEBUG
        mov     esi, msgStop
        invoke  SysMsgBoardStr
     end if
        call    stop
        ret
@@:
        cmp     eax, DEV_CALLBACK
        jne     @F
        mov     ebx, [edi+input]
        stdcall set_callback, [ebx]
        ret
@@:
        cmp     eax, DEV_SET_MASTERVOL
        jne     @F
        mov     eax, [edi+input]
        mov     eax, [eax]
        call    set_master_vol          ;eax= vol
        ret
@@:
        cmp     eax, DEV_GET_MASTERVOL
        jne     @F
        mov     ebx, [edi+output]
        stdcall get_master_vol, ebx
        ret
@@:
        cmp     eax, DEV_GET_INFO
        jne     @F
        mov     ebx, [edi+output]
        stdcall get_dev_info, ebx
        ret
@@:
.fail:
        or      eax, -1
        ret
endp

restore   handle
restore   io_code
restore   input
restore   inp_size
restore   output
restore   out_size


align 4
proc ac97_irq
           locals
             status dd 0
           endl

;        status = inl(chip->port + IPR);
        mov     edx, IPR
        call    [ctrl.ctrl_read32]
        test    eax, eax
        jz      @f

        mov     dword [status], eax

        mov     ebx, dword [buff_list]
        cmp     [ctrl.user_callback], 0
        je      @f
        stdcall [ctrl.user_callback], ebx
       @@:
        mov     eax, dword [status]               ;; ack ;;
        mov     edx, IPR
        call    [ctrl.ctrl_write32]
        ret
endp


align 4
proc create_primary_buff

        invoke  KernelAlloc, 0x10000
        mov     [ctrl.buffer], eax

        mov     edi, eax
        mov     ecx, 0x10000/4
        xor     eax, eax
        cld
        rep stosd

        mov     eax, [ctrl.buffer]
        invoke  GetPgAddr

        mov     edi, pcmout_bdl
        stosd
        mov     eax, 0x4000000
        stosd

        mov     edi, buff_list
        mov     eax, [ctrl.buffer]
        stosd                        ;1.]

        mov     eax, [ctrl.buffer]
        invoke  GetPgAddr

        stdcall ptr_write, PLAYBACK_POINTER, 0, 0
        stdcall ptr_write, PLAYBACK_UNKNOWN1, 0, 0
        stdcall ptr_write, PLAYBACK_UNKNOWN2, 0, 0
        stdcall ptr_write, PLAYBACK_DMA_ADDR, 0, eax

        mov     eax, pcmout_bdl
        mov     ebx, eax
        invoke  GetPgAddr
        and     ebx, 0xFFF
        add     eax, ebx

        stdcall ptr_write, PLAYBACK_LIST_ADDR, 0, eax
        stdcall ptr_write, PLAYBACK_LIST_SIZE, 0, 0
        stdcall ptr_write, PLAYBACK_LIST_PTR, 0, 0

           ;mov     eax, 0x00004000
           ;shl     eax, 16
        stdcall ptr_write, PLAYBACK_PERIOD_SIZE, 0, 0x40000000    ;eax

        ret
endp


align 4
proc detect_controller
           locals
             last_bus dd ?
             bus      dd ?
             devfn    dd ?
           endl

        xor     eax, eax
        mov     [bus], eax
        inc     eax
        invoke  PciApi
        cmp     eax, -1
        je      .err

        mov     [last_bus], eax

.next_bus:
        and     [devfn], 0
.next_dev:
        invoke  PciRead32, [bus], [devfn], dword 0
        test    eax, eax
        jz      .next
        cmp     eax, -1
        je      .next

        mov     edi, devices
@@:
        mov     ebx, [edi]
        test    ebx, ebx
        jz      .next

        cmp     eax, ebx
        je      .found
        add     edi, 12
        jmp     @B
.next:
        inc     [devfn]
        cmp     [devfn], 256
        jb      .next_dev
        mov     eax, [bus]
        inc     eax
        mov     [bus], eax
        cmp     eax, [last_bus]
        jna     .next_bus
        xor     eax, eax
        ret
.found:
        mov     ebx, [bus]
        mov     [ctrl.bus], ebx

        mov     ecx, [devfn]
        mov     [ctrl.devfn], ecx

        mov     edx, eax
        and     edx, 0xFFFF
        mov     [ctrl.vendor], edx
        shr     eax, 16
        mov     [ctrl.dev_id], eax

        mov     ebx, [edi+4]
        mov     [ctrl.ctrl_ids], ebx
        mov     esi, [edi+8]
        mov     [ctrl.ctrl_setup], esi

        cmp     edx, VID_Creative
        jne     @F
        mov     [ctrl.vendor_ids], msg_Creative
        ret
@@:

.err:
        xor     eax, eax
        mov     [ctrl.vendor_ids], eax    ;something  wrong ?
        ret
endp

align 4
proc init_controller

        invoke  PciRead32, [ctrl.bus], [ctrl.devfn], dword 0x2C
        mov     esi, msgPciSubsys
        invoke  SysMsgBoardStr
        call    dword2str
        invoke  SysMsgBoardStr

        invoke  PciRead32, [ctrl.bus], [ctrl.devfn], dword 4
        mov     ebx, eax
        and     eax, 0xFFFF
        mov     [ctrl.pci_cmd], eax
        shr     ebx, 16
        mov     [ctrl.pci_stat], ebx

        mov     esi, msgPciCmd
        invoke  SysMsgBoardStr
        call    dword2str
        invoke  SysMsgBoardStr

        mov     esi, msgPciStat
        invoke  SysMsgBoardStr
        mov     eax, [ctrl.pci_stat]
        call    dword2str
        invoke  SysMsgBoardStr

        mov     esi, msgCtrlIsaIo
        invoke  SysMsgBoardStr
        invoke  PciRead32, [ctrl.bus], [ctrl.devfn], dword 0x10
        call    dword2str
        invoke  SysMsgBoardStr

        and     eax, 0xFFC0
        mov     [ctrl.ctrl_io_base], eax

.default:
        invoke  PciRead32, [ctrl.bus], [ctrl.devfn], dword 0x3C
        and     eax, 0xFF
@@:
        mov     [ctrl.int_line], eax

        call    [ctrl.ctrl_setup]
        xor     eax, eax
        inc     eax
        ret
endp

align 4
proc set_Creative
        mov     [ctrl.codec_read16], codec_io_r16         ;virtual
        mov     [ctrl.codec_write16], codec_io_w16        ;virtual

        mov     [ctrl.ctrl_read8 ], ctrl_io_r8            ;virtual
        mov     [ctrl.ctrl_read16], ctrl_io_r16           ;virtual
        mov     [ctrl.ctrl_read32], ctrl_io_r32           ;virtual

        mov     [ctrl.ctrl_write8 ], ctrl_io_w8           ;virtual
        mov     [ctrl.ctrl_write16], ctrl_io_w16          ;virtual
        mov     [ctrl.ctrl_write32], ctrl_io_w32          ;virtual
        ret
endp


align 4
proc init_codec
        call    reset_codec
        test    eax, eax
        jz      .err
        call    detect_codec
        xor     eax, eax
        inc     eax
        ret
     .err:
        xor     eax, eax
        ret
endp

align 4
proc reset_codec
           locals
             counter dd ?
           endl

     if DEBUG
        mov     esi, msgCold
        invoke  SysMsgBoardStr
     end if

        mov     eax, 100000         ; wait 100 ms ;400000     ; wait 400 ms
        call    StallExec

        stdcall ptr_read, TRIGGER_CHANNEL, 0

        mov     [counter], 16        ; total 20*100 ms = 2s
.wait:
        stdcall codec_read, dword 0x26
        test    eax, 1
        jnz     .ok

        mov     eax, 100000        ; wait 100 ms
        call    StallExec

        dec     [counter]
        jnz     .wait

     if DEBUG
        mov     esi, msgCRFail
        invoke  SysMsgBoardStr
     end if

.fail:
        stc
        ret
.ok:


        xor     eax, eax
        inc     eax
        ret
endp


align 4
play:
        mov     eax, INTE_CH_0_LOOP
        stdcall intr_enable, eax

        stdcall ptr_read, TRIGGER_CHANNEL, 0
        mov     ebx, TRIGGER_CHANNEL_0
        or      eax, ebx
        stdcall ptr_write, TRIGGER_CHANNEL, 0, eax

        xor     eax, eax
        ret

align 4
stop:
        mov     eax, INTE_CH_0_LOOP or INTE_CH_0_HALF_LOOP
        stdcall intr_disable, eax

        stdcall ptr_read, TRIGGER_CHANNEL, 0
        mov     ebx, TRIGGER_CHANNEL_0
        xor     ebx, -1
        or      eax, ebx
        stdcall ptr_write, TRIGGER_CHANNEL, 0, eax
        xor     eax, eax
        ret

align 4
proc get_dev_info stdcall, p_info:dword
           virtual at esi
             CTRL_INFO CTRL_INFO
           end virtual

        mov     esi, [p_info]
        mov     eax, [ctrl.int_line]
        mov     ecx, [ctrl.ctrl_io_base]
        mov     [CTRL_INFO.irq], eax
        mov     [CTRL_INFO.ctrl_io_base], ecx
        mov     eax, [codec.chip_id]
        mov     [CTRL_INFO.codec_id], eax
        mov     ebx, [ctrl.pci_cmd]
        mov     [CTRL_INFO.pci_cmd], ebx

        xor     eax, eax
        mov     [CTRL_INFO.codec_io_base], eax
        mov     [CTRL_INFO.codec_mem_base], eax
        mov     [CTRL_INFO.ctrl_mem_base], eax
        mov     [CTRL_INFO.glob_cntrl], eax
        mov     [CTRL_INFO.glob_sta], eax
        ret
endp

align 4
proc set_callback stdcall, handler:dword
        mov     eax, [handler]
        mov     [ctrl.user_callback], eax
        ret
endp


align 4
proc create stdcall
        invoke  PciRead16, [ctrl.bus], [ctrl.devfn], 4
        test    eax, 4     ; test master bit
        jnz     @f
        or      eax, 4
        invoke  PciWrite16, [ctrl.bus], [ctrl.devfn], 4, eax     ; set master bit
         @@:

        xor     eax, eax
        mov     edx, INTE
        call    [ctrl.ctrl_write32]

        stdcall ptr_write, SPCS0, 0, \
                SPCS_CLKACCY_1000PPM or SPCS_SAMPLERATE_48 or \
                SPCS_CHANNELNUM_LEFT or SPCS_SOURCENUM_UNSPEC or \
                SPCS_GENERATIONSTATUS or 0x00001200 or \
                0x00000000 or SPCS_EMPHASIS_NONE or SPCS_COPYRIGHT
        stdcall ptr_write, SPCS1, 0, \
                SPCS_CLKACCY_1000PPM or SPCS_SAMPLERATE_48 or \
                SPCS_CHANNELNUM_LEFT or SPCS_SOURCENUM_UNSPEC or \
                SPCS_GENERATIONSTATUS or 0x00001200 or \
                0x00000000 or SPCS_EMPHASIS_NONE or SPCS_COPYRIGHT
        stdcall ptr_write, SPCS2, 0, \
                SPCS_CLKACCY_1000PPM or SPCS_SAMPLERATE_48 or \
                SPCS_CHANNELNUM_LEFT or SPCS_SOURCENUM_UNSPEC or \
                SPCS_GENERATIONSTATUS or 0x00001200 or \
                0x00000000 or SPCS_EMPHASIS_NONE or SPCS_COPYRIGHT

        stdcall ptr_write, SPDIF_SELECT, 0, 0x700      ; disable SPDIF
        stdcall ptr_write, ROUTING, 0, 0x1003F         ; routing
        stdcall gpio_write, 0x1080                     ; analog mode

        mov     eax, dword HCFG_LOCKSOUNDCACHE or HCFG_AUDIOENABLE
        mov     edx, HCFG
        call    [ctrl.ctrl_write32]
        ret
endp

align 4
proc codec_read stdcall, reg:dword
        stdcall ac97_read, dword [reg]
        ret
endp


align 4
proc codec_write stdcall, reg:dword
        stdcall ac97_write, dword [reg], eax
        ret
endp


align 4
proc ac97_read stdcall, reg:dword
        push    edx
        mov     eax, dword [reg]
        mov     edx, AC97ADDRESS
        call    [ctrl.ctrl_write8]

        mov     edx, AC97DATA
        call    [ctrl.ctrl_read16]
        and     eax, 0xFFFF
        pop     edx
        ret
endp

align 4
proc ac97_write stdcall, reg:dword, val:dword
        push    eax edx
        mov     eax, dword [reg]
        mov     edx, AC97ADDRESS
        call    [ctrl.ctrl_write8]

        mov     eax, dword [val]
        mov     edx, AC97DATA
        call    [ctrl.ctrl_write16]
        pop     edx eax
        ret
endp

align 4
proc ptr_read stdcall, reg:dword, chn:dword
        push    edx
        mov     eax, dword [reg]
        shl     eax, 16
        or      eax, dword [chn]

        mov     edx, PTR
        call    [ctrl.ctrl_write32]

        mov     edx, DATA
        call    [ctrl.ctrl_read32]
        pop     edx
        ret
endp

align 4
proc ptr_write stdcall, reg:dword, chn:dword, data:dword
        push    eax edx
        mov     eax, dword [reg]
        shl     eax, 16
        or      eax, dword [chn]

        mov     edx, PTR
        call    [ctrl.ctrl_write32]

        mov     eax, dword [data]
        mov     edx, DATA
        call    [ctrl.ctrl_write32]
        pop     edx eax
        ret
endp

align 4
proc intr_enable stdcall, intrenb:dword
        push    edx
        mov     edx, INTE
        call    [ctrl.ctrl_read32]

        or      eax, dword [intrenb]
        mov     edx, INTE
        call    [ctrl.ctrl_write32]
        pop     edx
        ret
endp

align 4
proc intr_disable stdcall, intrenb:dword
        push    eax ebx edx
        mov     edx, INTE
        call    [ctrl.ctrl_read32]

        mov     ebx, dword [intrenb]
        xor     ebx, -1
        and     eax, ebx
        mov     edx, INTE
        call    [ctrl.ctrl_write32]
        pop     edx ebx eax
        ret
endp

align 4
proc gpio_write stdcall, value:dword
        push    eax edx
        mov     eax, dword [value]
        mov     edx, GPIO
        call    [ctrl.ctrl_write32]
        pop     edx eax
        ret
endp


align 4
proc StallExec
        push    ecx
        push    edx
        push    ebx
        push    eax

        mov     ecx, CPU_FREQ
        mul     ecx
        mov     ebx, eax           ;low
        mov     ecx, edx           ;high
        rdtsc
        add     ebx, eax
        adc     ecx, edx
@@:
        rdtsc
        sub     eax, ebx
        sbb     edx, ecx
        js      @B

        pop     eax
        pop     ebx
        pop     edx
        pop     ecx
        ret
endp

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;          CONTROLLER IO functions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

align 4
proc codec_io_r16 ;Not used.
           ;mov      edx, [ctrl.ctrl_io_base]
           ;in       eax, dx
        ret
endp

align 4
proc codec_io_w16 ;Not used.
           ;mov      edx, [ctrl.ctrl_io_base]
           ;out      dx,  eax
        ret
endp

align 4
proc ctrl_io_r8
        add     edx, [ctrl.ctrl_io_base]
        in      al, dx
        ret
endp

align 4
proc ctrl_io_r16
        add     edx, [ctrl.ctrl_io_base]
        in      ax, dx
        ret
endp

align 4
proc ctrl_io_r32
        add     edx, [ctrl.ctrl_io_base]
        in      eax, dx
        ret
endp

align 4
proc ctrl_io_w8
        add     edx, [ctrl.ctrl_io_base]
        out     dx, al
        ret
endp

align 4
proc ctrl_io_w16
        add     edx, [ctrl.ctrl_io_base]
        out     dx, ax
        ret
endp

align 4
proc ctrl_io_w32
        add     edx, [ctrl.ctrl_io_base]
        out     dx, eax
        ret
endp


align 4
dword2str:
        push    eax ebx ecx
        mov     esi, hex_buff
        mov     ecx, -8
   @@:
        rol     eax, 4
        mov     ebx, eax
        and     ebx, 0x0F
        mov     bl, [ebx+hexletters]
        mov     [8+esi+ecx], bl
        inc     ecx
        jnz     @B
        pop     ecx ebx eax
        ret

hexletters   db '0123456789ABCDEF'
hex_buff     db 8 dup(0),13,10,0


include "codec.inc"

align 4
devices dd (CTRL_CT0200 shl 16)+VID_Creative,msg_CT_EMU10K1X,set_Creative
        dd 0    ;terminator


msg_CT_EMU10K1X  db 'SB Live! Dell OEM', 13,10, 0
msg_Creative     db 'Creative ', 0

szKernel            db 'KERNEL', 0
sz_sound_srv        db 'SOUND',0

msgInit      db 'detect hardware...',13,10,0
msgFail      db 'device not found',13,10,0
msgInvIRQ    db 'IRQ line not assigned or invalid', 13,10, 0
msgPlay      db 'start play', 13,10,0
msgStop      db 'stop play',  13,10,0
msgIRQ       db 'AC97 IRQ', 13,10,0
;msgInitCtrl  db 'init controller',13,10,0
;msgInitCodec db 'init codec',13,10,0
msgPrimBuff  db 'create primary buffer ...',0
msgDone      db 'done',13,10,0
msgRemap     db 'Remap IRQ',13,10,0
;msgReg       db 'set service handler',13,10,0
;msgOk        db 'service installed',13,10,0
msgCold      db 'cold reset',13,10,0
;msgWarm      db 'warm reset',13,10,0
;msgWRFail    db 'warm reset failed',13,10,0
msgCRFail    db 'cold reset failed',13,10,0
;msgCFail     db 'codec not ready',13,10,0
;msgCInvalid  db 'codec is not valid',13,10,0 ;Asper
;msgResetOk   db 'reset complete',13,10,0
;msgStatus    db 'global status   ',0
;msgControl   db 'global control  ',0
msgPciCmd    db 'PCI command     ',0
msgPciStat   db 'PCI status      ',0
msgPciSubsys db 'PCI subsystem   ',0
msgCtrlIsaIo db 'controller io base   ',0
;msgMixIsaIo  db 'codec io base        ',0
;msgCtrlMMIo  db 'controller mmio base ',0
;msgMixMMIo   db 'codec mmio base      ',0
;msgIrqMap    db 'AC97 irq map as      ',0

align 4
data fixups
end data

align 8
pcmout_bdl       rq 32
buff_list        rd 32

codec CODEC
ctrl AC_CNTRL