ea2f1590aa
ToPIC95 brides (and maybe some other too) require to use the ExCA registers to power up the socket if a 16bit card is pluged. allow socket drivers to set a flag so that yenta does just that. also clean up yenta_get_status() a bit to use the new yenta_get_power() function. Side note: ToPIC97 bridges (at least in Rev.5 i have) don't require this. Ryan Underwood <nemesis-lists@icequake.net> said: According to the mail that David Hinds received from a Toshiba engineer, ToPIC95 and 97 do require this, and ToPIC100 does not. Maybe you have a later revision. For all chips, 16-bit cards can be enabled through ExCA. So doesn't it make sense just to make this the default behavior for all Toshiba chips, to avoid corner cases showing up later? Daniel responded: I disagree with ryan to change anything for topic97 bridges. they work. and I couldn't find (read google) any report of a topic97 breaking on applying power with the CB registers. I'm having several toshba notebooks at work (and home) with topic95,97,100 bridges. Only the ones with a topic95 didn't work. Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
157 lines
5.2 KiB
C
157 lines
5.2 KiB
C
/*
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* topic.h 1.8 1999/08/28 04:01:47
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License
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* at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and
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* limitations under the License.
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*
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License version 2 (the "GPL"), in which
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* case the provisions of the GPL are applicable instead of the
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* above. If you wish to allow the use of your version of this file
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* only under the terms of the GPL and not to allow others to use
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* your version of this file under the MPL, indicate your decision by
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* deleting the provisions above and replace them with the notice and
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* other provisions required by the GPL. If you do not delete the
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* provisions above, a recipient may use your version of this file
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* under either the MPL or the GPL.
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* topic.h $Release$ 1999/08/28 04:01:47
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*/
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#ifndef _LINUX_TOPIC_H
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#define _LINUX_TOPIC_H
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/* Register definitions for Toshiba ToPIC95/97/100 controllers */
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#define TOPIC_SOCKET_CONTROL 0x0090 /* 32 bit */
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#define TOPIC_SCR_IRQSEL 0x00000001
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#define TOPIC_SLOT_CONTROL 0x00a0 /* 8 bit */
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#define TOPIC_SLOT_SLOTON 0x80
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#define TOPIC_SLOT_SLOTEN 0x40
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#define TOPIC_SLOT_ID_LOCK 0x20
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#define TOPIC_SLOT_ID_WP 0x10
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#define TOPIC_SLOT_PORT_MASK 0x0c
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#define TOPIC_SLOT_PORT_SHIFT 2
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#define TOPIC_SLOT_OFS_MASK 0x03
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#define TOPIC_CARD_CONTROL 0x00a1 /* 8 bit */
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#define TOPIC_CCR_INTB 0x20
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#define TOPIC_CCR_INTA 0x10
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#define TOPIC_CCR_CLOCK 0x0c
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#define TOPIC_CCR_PCICLK 0x0c
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#define TOPIC_CCR_PCICLK_2 0x08
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#define TOPIC_CCR_CCLK 0x04
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#define TOPIC97_INT_CONTROL 0x00a1 /* 8 bit */
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#define TOPIC97_ICR_INTB 0x20
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#define TOPIC97_ICR_INTA 0x10
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#define TOPIC97_ICR_STSIRQNP 0x04
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#define TOPIC97_ICR_IRQNP 0x02
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#define TOPIC97_ICR_IRQSEL 0x01
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#define TOPIC_CARD_DETECT 0x00a3 /* 8 bit */
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#define TOPIC_CDR_MODE_PC32 0x80
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#define TOPIC_CDR_VS1 0x04
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#define TOPIC_CDR_VS2 0x02
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#define TOPIC_CDR_SW_DETECT 0x01
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#define TOPIC_REGISTER_CONTROL 0x00a4 /* 32 bit */
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#define TOPIC_RCR_RESUME_RESET 0x80000000
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#define TOPIC_RCR_REMOVE_RESET 0x40000000
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#define TOPIC97_RCR_CLKRUN_ENA 0x20000000
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#define TOPIC97_RCR_TESTMODE 0x10000000
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#define TOPIC97_RCR_IOPLUP 0x08000000
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#define TOPIC_RCR_BUFOFF_PWROFF 0x02000000
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#define TOPIC_RCR_BUFOFF_SIGOFF 0x01000000
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#define TOPIC97_RCR_CB_DEV_MASK 0x0000f800
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#define TOPIC97_RCR_CB_DEV_SHIFT 11
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#define TOPIC97_RCR_RI_DISABLE 0x00000004
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#define TOPIC97_RCR_CAUDIO_OFF 0x00000002
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#define TOPIC_RCR_CAUDIO_INVERT 0x00000001
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#define TOPIC97_MISC1 0x00ad /* 8bit */
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#define TOPIC97_MISC1_CLOCKRUN_ENABLE 0x80
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#define TOPIC97_MISC1_CLOCKRUN_MODE 0x40
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#define TOPIC97_MISC1_DETECT_REQ_ENA 0x10
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#define TOPIC97_MISC1_SCK_CLEAR_DIS 0x04
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#define TOPIC97_MISC1_R2_LOW_ENABLE 0x10
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#define TOPIC97_MISC2 0x00ae /* 8 bit */
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#define TOPIC97_MISC2_SPWRCLK_MASK 0x70
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#define TOPIC97_MISC2_SPWRMOD 0x08
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#define TOPIC97_MISC2_SPWR_ENABLE 0x04
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#define TOPIC97_MISC2_ZV_MODE 0x02
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#define TOPIC97_MISC2_ZV_ENABLE 0x01
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#define TOPIC97_ZOOM_VIDEO_CONTROL 0x009c /* 8 bit */
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#define TOPIC97_ZV_CONTROL_ENABLE 0x01
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#define TOPIC97_AUDIO_VIDEO_SWITCH 0x003c /* 8 bit */
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#define TOPIC97_AVS_AUDIO_CONTROL 0x02
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#define TOPIC97_AVS_VIDEO_CONTROL 0x01
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#define TOPIC_EXCA_IF_CONTROL 0x3e /* 8 bit */
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#define TOPIC_EXCA_IFC_33V_ENA 0x01
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static void topic97_zoom_video(struct pcmcia_socket *sock, int onoff)
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{
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struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
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u8 reg_zv, reg;
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reg_zv = config_readb(socket, TOPIC97_ZOOM_VIDEO_CONTROL);
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if (onoff) {
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reg_zv |= TOPIC97_ZV_CONTROL_ENABLE;
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config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
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reg = config_readb(socket, TOPIC97_MISC2);
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reg |= TOPIC97_MISC2_ZV_ENABLE;
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config_writeb(socket, TOPIC97_MISC2, reg);
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/* not sure this is needed, doc is unclear */
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#if 0
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reg = config_readb(socket, TOPIC97_AUDIO_VIDEO_SWITCH);
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reg |= TOPIC97_AVS_AUDIO_CONTROL | TOPIC97_AVS_VIDEO_CONTROL;
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config_writeb(socket, TOPIC97_AUDIO_VIDEO_SWITCH, reg);
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#endif
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}
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else {
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reg_zv &= ~TOPIC97_ZV_CONTROL_ENABLE;
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config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
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}
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}
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static int topic97_override(struct yenta_socket *socket)
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{
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/* ToPIC97/100 support ZV */
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socket->socket.zoom_video = topic97_zoom_video;
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return 0;
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}
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static int topic95_override(struct yenta_socket *socket)
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{
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u8 fctrl;
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/* enable 3.3V support for 16bit cards */
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fctrl = exca_readb(socket, TOPIC_EXCA_IF_CONTROL);
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exca_writeb(socket, TOPIC_EXCA_IF_CONTROL, fctrl | TOPIC_EXCA_IFC_33V_ENA);
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/* tell yenta to use exca registers to power 16bit cards */
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socket->flags |= YENTA_16BIT_POWER_EXCA | YENTA_16BIT_POWER_DF;
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return 0;
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}
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#endif /* _LINUX_TOPIC_H */
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