from Nable: SB16 MASTERVOLUME

git-svn-id: svn://kolibrios.org@850 a494cfbc-eb01-0410-851d-a64ba20cac60

kernel/trunk/drivers/sb16/CONFIG.INC

@@ -1,6 +1,6 @@
 ;flags------------------------------------------------------------
-DEBUG        equ 1 ;show messages at debug board
+DEBUG	     equ 1 ;show messages at debug board
-use_cli_sti  equ 1 ;driver come more stable (theoretically)
+use_cli_sti  equ 1 ;driver become more stable (theoretically)
 
 ;constants--------------------------------------------------------
 API_VERSION	equ 0  ;debug
@@ -10,20 +10,29 @@ new_app_base	equ 0x0
 PROC_BASE	equ (OS_BASE+0x080000)
 SB16Buffer	equ (OS_BASE+0x2A0000)
 SB16_Status	equ (OS_BASE+0x2B0000)
-DMAPage         equ ((SB16Buffer-OS_BASE) shr 16)
+DMAPage 	equ ((SB16Buffer-OS_BASE) shr 16)
 
 SB16Buffer0	equ SB16Buffer
 SB16Buffer1	equ (SB16Buffer+16384)
 SB16Buffer2	equ (SB16Buffer+(2*16384))
 SB16Buffer3	equ (SB16Buffer+(3*16384))
 
-sb_irq_num	equ 5
+sb_irq_num	equ 5 ;default values for SB16, may be overrided by autodetect
-sb_dma_num	equ 5
+sb_dma_num	equ 5 ;default values for SB16, may be overrided by autodetect
-sb_buffer_size	equ 32768 ;really it needs code modifications to change
-			  ;buffer size
-sb_out_rate     equ 44100
-;time constant for cards older than SB16
 
+small_buffer	equ 32768
+full_buffer	equ 65536
+sb_buffer_size	equ full_buffer
+
+__supported_buffer_sizes fix <small_buffer, full_buffer>
+
+if ~(sb_buffer_size in __supported_buffer_sizes)
+display 13,10,'unsupported buffer size was selected, check config.inc',13,10
+stop
+end if
+
+sb_out_rate	equ 48000
+;time constant for cards older than SB16
 sb_tc		equ (256-(1000000/(sb_out_rate*2)))
 
 SRV_GETVERSION	      equ  0

kernel/trunk/drivers/sb16/SB16.INC

@@ -43,7 +43,7 @@ end if
 	 mov al,((sb_buffer_size-1) and 0xff)
 	 out dx,al
 
-         mov al,((sb_buffer_size-1) shr 8) ;it is the same
+	 mov al,((sb_buffer_size-1) shr 8) ;it is the same
 	 out dx,al
 
 	 mov eax,ebx ;unmask DMA channel
@@ -129,8 +129,8 @@ proc sb_play
 	mov  edx,[sb_base_port]
 	add  dl,0xC
 	sb_out 0xD1 ;turn speaker on
-;        sb_out 0x48 ;set DSP transfer size  ;for older cards
+;        sb_out 0x48 ;set DSP transfer size  ;for older cards, not supported
-
+;                                            ;in this version
 ;        mov  ax,32767 ;(64k)/2-1
 ;@@:                 ;out the low byte...
 ;        in   al,dx
@@ -162,7 +162,7 @@ proc sb_play
 ;              ||  ||||
 ;              ---------reserved
 ;wSize is a number of 16bit samples less 1. For auto-init mode each half
-;buffer is (64k)/2 bytes long and, obviously, contains ((64k)/2)/2 bytes
+;buffer is (64k)/2 bytes long and, obviously, contains ((64k)/2)/2 samples
 	sb_out (((sb_buffer_size/2/2)-1) and 0xFF) ;wSize.LowByte
 	sb_out (((sb_buffer_size/2/2)-1) shr 8)    ;wSize.HighByte
 	ret
@@ -192,6 +192,7 @@ end if
 	out  dx,al
 	ret
 endp
+
 ;-------------------------------------------------------------------------------
 ;       set the rate for playing, enable stereo
 ;-------------------------------------------------------------------------------
@@ -204,7 +205,8 @@ proc sb_setup
 	sb_out 41h  ;set sound rate, this can only SB16
 	sb_out (sb_out_rate shr 8)    ;first high byte (MSB)
 	sb_out (sb_out_rate and 0xff) ;then low byte (LSB)
-;        mov  al,0xE
+
+;        mov  al,0xE  ;for older cards, not supported in this version
 ;        sub  dl,(0xC-4) ;talk to SB's mixer
 ;        out  dx,al      ;select this register of the mixer
 ;        mov  ecx,6      ;wait for the chip
@@ -237,3 +239,59 @@ proc sb_setup
 ;        loop @b
 	ret
 endp
+
+;-------------------------------------------------------------------------------
+;       set master volume of SB mixer, note, not only SB16 but SBPro and older
+;       this is the first step to more full support for hardware
+;-------------------------------------------------------------------------------
+;in: eax in range [-10000;0] - master volume for _both_ channels
+;note that x*3*17/2000 and x*3/2000*17 are not the same numbers,
+;because we count in integers
+proc sb_set_master_vol
+	mov  [sb_master_vol],eax
+	add  eax,10000 ;SB sound level rise from 0 to MAX_LEVEL
+	lea  eax,[eax+eax*2] ;*3
+	mov  ebx,2000  ;divisor
+	xor  edx,edx
+	cmp  byte[sb_DSP_version_int],4
+	jae  @f       ;SBPro's MAX_LEVEL is 15, but we *11 because
+		      ;volume byte looks like that: 0xLR, where L - left
+		      ;channel volume, R - right, 0<=R,L<=15
+	div  ebx
+	imul eax,17
+	mov  edx,[sb_base_port]
+	push eax      ;here for optimisation
+	add  dl,4
+	mov  al,0x22  ;write mixer register 0x22
+	out  dx,al
+	in   al,dx    ;wait for the chip ;6
+	in   al,dx    ;wait for the chip ;5
+	in   al,dx    ;wait for the chip ;4
+	in   al,dx    ;wait for the chip ;3
+	in   al,dx    ;wait for the chip ;2
+	in   al,dx    ;wait for the chip ;1
+	pop  eax			 ;go!
+	inc  edx
+	out  dx,al
+	ret
+@@:		      ;SB16's MAX_LEVEL is 255
+	imul eax,17
+	div  ebx
+	mov  edx,[sb_base_port]
+	push eax      ;here for optimisation
+	add  dl,4
+	mov  al,0x30  ;left speaker
+	out  dx,al
+	pop  eax      ;<--+
+	inc  edx      ;   \/
+	push eax      ;here for optimisation
+	out  dx,al    ;write
+	dec  edx
+	mov  al,0x31  ;right speaker
+	out  dx,al
+	pop  eax
+	inc  edx
+	out  dx,al    ;write
+	ret
+endp
+;-------------------------------------------------------------------------------

kernel/trunk/drivers/sb16/sb16.asm

@@ -37,7 +37,6 @@ include 'sb16.inc'
 
 ;-------------------------------------------------------------------------------
 proc START stdcall, state:dword
-
 	   cmp	[state], 1
 	   jne	.stop
 .entry:
@@ -53,15 +52,16 @@ end if
 
 if DEBUG
 	   movzx eax,al 	 ;major version
+	   mov esi,sb_DSP_description
 	   dec eax
 	   jz  .sb_say_about_found_dsp
-	   mov dword[sb_DSP_description],'2.x '
+	   mov dword[esi],'2.x '
 	   dec eax
 	   jz  .sb_say_about_found_dsp
-	   mov dword[sb_DSP_description],'Pro '
+	   mov dword[esi],'Pro '
 	   dec eax
 	   jz  .sb_say_about_found_dsp
-	   mov dword[sb_DSP_description],'16  '
+	   mov dword[esi],'16  '
 .sb_say_about_found_dsp:
 	   mov esi,msgDSPFound
 	   call SysMsgBoardStr
@@ -69,7 +69,7 @@ end if
 	   xor	eax,eax
 	   mov	ebx,[sb_base_port]
 	   lea	ecx,[ebx+0xF]
-	   call ReservePortArea  ;these ports must be mine!
+	   call ReservePortArea  ;these ports must be my!
 if DEBUG
 	   dec	eax
 	   jnz	@f
@@ -147,6 +147,8 @@ end if
 
 	   call sb_set_dma	 ;is it really needed here? Paranoia.
 	   call sb_play
+	   xor	eax,eax 	  ;set maximum volume
+	   call sb_set_master_vol
 	   xor	eax,eax
 	   ret
 ;@@:                             ;all this commented stuff in service proc
@@ -172,29 +174,34 @@ end if
 if DEBUG
 	   call SysMsgBoardNum
 end if
+	   xor	eax,eax
 	   ret
 @@:
-;           cmp  eax,DEV_SET_MASTERVOL
+	   cmp	eax,DEV_SET_MASTERVOL ;Serge asked me to unlock
-;           jne  @F
+	   jne	@F ;DEV_SET(GET)_MASTERVOL, although mixer doesn't use it.
-;if DEBUG
+	   ;It doesn't use it _in current version_ - but in the future...
-;           mov  esi,msgSetVol
+
-;           call SysMsgBoardStr
+if DEBUG
-;end if
+	   mov	esi,msgSetVol
-;           mov  eax,[edi+input]
+	   call SysMsgBoardStr
-;           mov  eax,[eax]
+end if
-;           mov  [sb_master_vol],eax
+	   mov	eax,[edi+input]
-;           ret
+	   mov	eax,[eax]
-;@@:
+	   call sb_set_master_vol
-;           cmp  eax,DEV_GET_MASTERVOL
+	   xor	eax,eax
-;           jne  @F
+	   ret
-;if DEBUG
+@@:
-;           mov  esi,msgGetVol
+	   cmp	eax,DEV_GET_MASTERVOL
-;           call SysMsgBoardStr
+	   jne	@F
-;end if
+if DEBUG
-;           mov  eax,[edi+output]
+	   mov	esi,msgGetVol
-;           mov  edx,[sb_master_vol]
+	   call SysMsgBoardStr
-;           mov  [eax],edx
+end if
-;           ret
+	   mov	eax,[edi+output]
+	   mov	edx,[sb_master_vol]
+	   mov	[eax],edx
+	   xor	eax,eax
+	   ret
 
 .fail:
 	   or eax, -1
@@ -222,18 +229,22 @@ pre_fill_data:
 	   test eax,eax
 	   jns	.fill_second_half
 
-           stdcall [callback],SB16Buffer0 ;for 32k buffer
+if sb_buffer_size eq small_buffer
-;           stdcall [callback],SB16Buffer0 ;for 64k buffer
+	   stdcall [callback],SB16Buffer0 ;for 32k buffer
-;           stdcall [callback],SB16Buffer1 ;for 64k buffer
+else if sb_buffer_size eq full_buffer
-
+	   stdcall [callback],SB16Buffer0 ;for 64k buffer
+	   stdcall [callback],SB16Buffer1 ;for 64k buffer
+end if
 	   xor	eax,eax
 	   ret
 
 .fill_second_half:
-           stdcall [callback],SB16Buffer1 ;for 32k buffer
+if sb_buffer_size eq small_buffer
-;           stdcall [callback],SB16Buffer2 ;for 64k buffer
+	   stdcall [callback],SB16Buffer1 ;for 32k buffer
-;           stdcall [callback],SB16Buffer3 ;for 64k buffer
+else if sb_buffer_size eq full_buffer
-
+	   stdcall [callback],SB16Buffer2 ;for 64k buffer
+	   stdcall [callback],SB16Buffer3 ;for 64k buffer
+end if
 	   xor	eax,eax
 	   ret
 endp
@@ -291,6 +302,7 @@ end if
 	   div	dl
 	   ror	eax,16
 	   xor	ah,ah
+	   mov	[sb_DSP_version_int],eax ;for internal usage
 if DEBUG
 	   add	[sb_DSP_version],eax
 end if
@@ -302,7 +314,7 @@ end if
 endp
 ;-------------------------------------------------------------------------------
 if DEBUG
-proc SysMsgBoardNum
+proc SysMsgBoardNum ;warning: destroys eax,ebx,ecx,esi
 	   mov	ebx,eax
 	   mov	ecx,8
 	   mov	esi,(number_to_out+1)
@@ -323,17 +335,10 @@ proc SysMsgBoardNum
 endp
 end if
 ;all initialized data place here
-
 align 4
 version       dd (5 shl 16) or (API_VERSION and 0xFFFF)
 
-sb_base_port: dd 200h
+sb_base_port: dd 200h ;don't ask me why - see the code&docs
-
-;pTempBuf      dd 0
-
-callback      dd 0
-
-int_flip_flop dd 0
 
 sound_dma     dd sb_dma_num
 
@@ -341,8 +346,6 @@ sound_dma     dd sb_dma_num
 ;plugging the first DMA controler to the second
 dma_table     db 0x87,0x83,0x81,0x82,0xFF,0x8B,0x89,0x8A
 
-;sb_master_vol dd 0
-
 my_service    db 'SOUND',0  ;max 16 chars include zero
 
 if DEBUG
@@ -360,8 +363,8 @@ msgSucAtchIRQ db 'succesfully attached IRQ',(sb_irq_num+'0')
 	      db ' as hardcoded',13,10,0
 msgErrRsrvPorts db 'failed to reserve needed ports.',13,10
 	      db 'Driver may work unstable',13,10,0
-;msgSetVol     db 'DEV_SET_MASTERVOL call came',13,10,0
+msgSetVol     db 'DEV_SET_MASTERVOL call came',13,10,0
-;msgGetVol     db 'DEV_GET_MASTERVOL call came',13,10,0
+msgGetVol     db 'DEV_GET_MASTERVOL call came',13,10,0
 msgErrDMAsetup db 'failed to setup DMA - bad channel',13,10,0
 ;-------------------------------------------------------------------------------
 msgDSPFound   db 'DSP found at port 2'
@@ -371,5 +374,16 @@ sb_DSP_version: db '0.00 - SB'
 sb_DSP_description: db 32,32,32,32,13,10,0
 ;-------------------------------------------------------------------------------
 end if
-;section '.data' data readable writable align 16
+
+section '.data' data readable writable align 16
 ;all uninitialized data place here
+
+;pTempBuf          rd 1
+
+callback	   rd 1
+
+int_flip_flop	   rd 1
+
+sb_master_vol	   rd 1
+
+sb_DSP_version_int rd 1

kernel/trunk/drivers/uart.asm

@@ -7,9 +7,13 @@
 
 format MS COFF
 
+DEBUG           equ 1
+
 include 'proc32.inc'
 include 'imports.inc'
 
+
+
 API_VERSION	  equ 0
 UART_VERSION	  equ API_VERSION