1/*
2 * topic.h 1.8 1999/08/28 04:01:47
3 *
4 * The contents of this file are subject to the Mozilla Public License
5 * Version 1.1 (the "License"); you may not use this file except in
6 * compliance with the License. You may obtain a copy of the License
7 * at http://www.mozilla.org/MPL/
8 *
9 * Software distributed under the License is distributed on an "AS IS"
10 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
11 * the License for the specific language governing rights and
12 * limitations under the License.
13 *
14 * The initial developer of the original code is David A. Hinds
15 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
16 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
17 *
18 * Alternatively, the contents of this file may be used under the
19 * terms of the GNU General Public License version 2 (the "GPL"), in which
20 * case the provisions of the GPL are applicable instead of the
21 * above. If you wish to allow the use of your version of this file
22 * only under the terms of the GPL and not to allow others to use
23 * your version of this file under the MPL, indicate your decision by
24 * deleting the provisions above and replace them with the notice and
25 * other provisions required by the GPL. If you do not delete the
26 * provisions above, a recipient may use your version of this file
27 * under either the MPL or the GPL.
28 * topic.h $Release$ 1999/08/28 04:01:47
29 */
30
31#ifndef _LINUX_TOPIC_H
32#define _LINUX_TOPIC_H
33
34/* Register definitions for Toshiba ToPIC95/97/100 controllers */
35
36#define TOPIC_SOCKET_CONTROL 0x0090 /* 32 bit */
37#define TOPIC_SCR_IRQSEL 0x00000001
38
39#define TOPIC_SLOT_CONTROL 0x00a0 /* 8 bit */
40#define TOPIC_SLOT_SLOTON 0x80
41#define TOPIC_SLOT_SLOTEN 0x40
42#define TOPIC_SLOT_ID_LOCK 0x20
43#define TOPIC_SLOT_ID_WP 0x10
44#define TOPIC_SLOT_PORT_MASK 0x0c
45#define TOPIC_SLOT_PORT_SHIFT 2
46#define TOPIC_SLOT_OFS_MASK 0x03
47
48#define TOPIC_CARD_CONTROL 0x00a1 /* 8 bit */
49#define TOPIC_CCR_INTB 0x20
50#define TOPIC_CCR_INTA 0x10
51#define TOPIC_CCR_CLOCK 0x0c
52#define TOPIC_CCR_PCICLK 0x0c
53#define TOPIC_CCR_PCICLK_2 0x08
54#define TOPIC_CCR_CCLK 0x04
55
56#define TOPIC97_INT_CONTROL 0x00a1 /* 8 bit */
57#define TOPIC97_ICR_INTB 0x20
58#define TOPIC97_ICR_INTA 0x10
59#define TOPIC97_ICR_STSIRQNP 0x04
60#define TOPIC97_ICR_IRQNP 0x02
61#define TOPIC97_ICR_IRQSEL 0x01
62
63#define TOPIC_CARD_DETECT 0x00a3 /* 8 bit */
64#define TOPIC_CDR_MODE_PC32 0x80
65#define TOPIC_CDR_VS1 0x04
66#define TOPIC_CDR_VS2 0x02
67#define TOPIC_CDR_SW_DETECT 0x01
68
69#define TOPIC_REGISTER_CONTROL 0x00a4 /* 32 bit */
70#define TOPIC_RCR_RESUME_RESET 0x80000000
71#define TOPIC_RCR_REMOVE_RESET 0x40000000
72#define TOPIC97_RCR_CLKRUN_ENA 0x20000000
73#define TOPIC97_RCR_TESTMODE 0x10000000
74#define TOPIC97_RCR_IOPLUP 0x08000000
75#define TOPIC_RCR_BUFOFF_PWROFF 0x02000000
76#define TOPIC_RCR_BUFOFF_SIGOFF 0x01000000
77#define TOPIC97_RCR_CB_DEV_MASK 0x0000f800
78#define TOPIC97_RCR_CB_DEV_SHIFT 11
79#define TOPIC97_RCR_RI_DISABLE 0x00000004
80#define TOPIC97_RCR_CAUDIO_OFF 0x00000002
81#define TOPIC_RCR_CAUDIO_INVERT 0x00000001
82
83#define TOPIC97_MISC1 0x00ad /* 8bit */
84#define TOPIC97_MISC1_CLOCKRUN_ENABLE 0x80
85#define TOPIC97_MISC1_CLOCKRUN_MODE 0x40
86#define TOPIC97_MISC1_DETECT_REQ_ENA 0x10
87#define TOPIC97_MISC1_SCK_CLEAR_DIS 0x04
88#define TOPIC97_MISC1_R2_LOW_ENABLE 0x10
89
90#define TOPIC97_MISC2 0x00ae /* 8 bit */
91#define TOPIC97_MISC2_SPWRCLK_MASK 0x70
92#define TOPIC97_MISC2_SPWRMOD 0x08
93#define TOPIC97_MISC2_SPWR_ENABLE 0x04
94#define TOPIC97_MISC2_ZV_MODE 0x02
95#define TOPIC97_MISC2_ZV_ENABLE 0x01
96
97#define TOPIC97_ZOOM_VIDEO_CONTROL 0x009c /* 8 bit */
98#define TOPIC97_ZV_CONTROL_ENABLE 0x01
99
100#define TOPIC97_AUDIO_VIDEO_SWITCH 0x003c /* 8 bit */
101#define TOPIC97_AVS_AUDIO_CONTROL 0x02
102#define TOPIC97_AVS_VIDEO_CONTROL 0x01
103
104#define TOPIC_EXCA_IF_CONTROL 0x3e /* 8 bit */
105#define TOPIC_EXCA_IFC_33V_ENA 0x01
106
107#define TOPIC_PCI_CFG_PPBCN 0x3e /* 16-bit */
108#define TOPIC_PCI_CFG_PPBCN_WBEN 0x0400
109
110static void topic97_zoom_video(struct pcmcia_socket *sock, int onoff)
111{
112 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
113 u8 reg_zv, reg;
114
115 reg_zv = config_readb(socket, TOPIC97_ZOOM_VIDEO_CONTROL);
116 if (onoff) {
117 reg_zv |= TOPIC97_ZV_CONTROL_ENABLE;
118 config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
119
120 reg = config_readb(socket, TOPIC97_AUDIO_VIDEO_SWITCH);
121 reg |= TOPIC97_AVS_AUDIO_CONTROL | TOPIC97_AVS_VIDEO_CONTROL;
122 config_writeb(socket, TOPIC97_AUDIO_VIDEO_SWITCH, reg);
123 } else {
124 reg_zv &= ~TOPIC97_ZV_CONTROL_ENABLE;
125 config_writeb(socket, TOPIC97_ZOOM_VIDEO_CONTROL, reg_zv);
126
127 reg = config_readb(socket, TOPIC97_AUDIO_VIDEO_SWITCH);
128 reg &= ~(TOPIC97_AVS_AUDIO_CONTROL | TOPIC97_AVS_VIDEO_CONTROL);
129 config_writeb(socket, TOPIC97_AUDIO_VIDEO_SWITCH, reg);
130 }
131}
132
133static int topic97_override(struct yenta_socket *socket)
134{
135 /* ToPIC97/100 support ZV */
136 socket->socket.zoom_video = topic97_zoom_video;
137 return 0;
138}
139
140
141static int topic95_override(struct yenta_socket *socket)
142{
143 u8 fctrl;
144 u16 ppbcn;
145
146 /* enable 3.3V support for 16bit cards */
147 fctrl = exca_readb(socket, TOPIC_EXCA_IF_CONTROL);
148 exca_writeb(socket, TOPIC_EXCA_IF_CONTROL, fctrl | TOPIC_EXCA_IFC_33V_ENA);
149
150 /* tell yenta to use exca registers to power 16bit cards */
151 socket->flags |= YENTA_16BIT_POWER_EXCA | YENTA_16BIT_POWER_DF;
152
153 /* Disable write buffers to prevent lockups under load with numerous
154 Cardbus cards, observed on Tecra 500CDT and reported elsewhere on the
155 net. This is not a power-on default according to the datasheet
156 but some BIOSes seem to set it. */
157 if (pci_read_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, &ppbcn) == 0
158 && socket->dev->revision <= 7
159 && (ppbcn & TOPIC_PCI_CFG_PPBCN_WBEN)) {
160 ppbcn &= ~TOPIC_PCI_CFG_PPBCN_WBEN;
161 pci_write_config_word(socket->dev, TOPIC_PCI_CFG_PPBCN, ppbcn);
162 dev_info(&socket->dev->dev, "Disabled ToPIC95 Cardbus write buffers.\n");
163 }
164
165 return 0;
166}
167
168#endif /* _LINUX_TOPIC_H */
169