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cardbus.c (109623) cardbus.c (109925)
1/*
2 * Copyright (c) 2000,2001 Jonathan Chen.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
1/*
2 * Copyright (c) 2000,2001 Jonathan Chen.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/cardbus/cardbus.c 109623 2003-01-21 08:56:16Z alfred $
28 * $FreeBSD: head/sys/dev/cardbus/cardbus.c 109925 2003-01-27 05:47:01Z imp $
29 */
30
31/*
32 * Cardbus Bus Driver
33 *
34 * much of the bus code was stolen directly from sys/pci/pci.c
35 * (Copyright (c) 1997, Stefan Esser <se@freebsd.org>)
36 *

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84 u_int flags);
85static int cardbus_attach(device_t cbdev);
86static int cardbus_attach_card(device_t cbdev);
87static int cardbus_child_location_str(device_t cbdev, device_t child,
88 char *, size_t len);
89static int cardbus_child_pnpinfo_str(device_t cbdev, device_t child,
90 char *, size_t len);
91static __inline void cardbus_clear_command_bit(device_t cbdev, device_t child,
29 */
30
31/*
32 * Cardbus Bus Driver
33 *
34 * much of the bus code was stolen directly from sys/pci/pci.c
35 * (Copyright (c) 1997, Stefan Esser <se@freebsd.org>)
36 *

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84 u_int flags);
85static int cardbus_attach(device_t cbdev);
86static int cardbus_attach_card(device_t cbdev);
87static int cardbus_child_location_str(device_t cbdev, device_t child,
88 char *, size_t len);
89static int cardbus_child_pnpinfo_str(device_t cbdev, device_t child,
90 char *, size_t len);
91static __inline void cardbus_clear_command_bit(device_t cbdev, device_t child,
92 u_int16_t bit);
92 uint16_t bit);
93static void cardbus_delete_resource(device_t cbdev, device_t child,
94 int type, int rid);
95static void cardbus_delete_resource_method(device_t cbdev, device_t child,
96 int type, int rid);
97static int cardbus_detach(device_t cbdev);
98static int cardbus_detach_card(device_t cbdev);
99static void cardbus_device_setup_regs(device_t brdev, int b, int s, int f,
100 pcicfgregs *cfg);

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117static int cardbus_print_resources(struct resource_list *rl,
118 const char *name, int type, const char *format);
119static void cardbus_print_verbose(struct cardbus_devinfo *dinfo);
120static int cardbus_probe(device_t cbdev);
121static void cardbus_probe_nomatch(device_t cbdev, device_t child);
122static struct cardbus_devinfo *cardbus_read_device(device_t brdev, int b,
123 int s, int f);
124static void cardbus_read_extcap(device_t cbdev, pcicfgregs *cfg);
93static void cardbus_delete_resource(device_t cbdev, device_t child,
94 int type, int rid);
95static void cardbus_delete_resource_method(device_t cbdev, device_t child,
96 int type, int rid);
97static int cardbus_detach(device_t cbdev);
98static int cardbus_detach_card(device_t cbdev);
99static void cardbus_device_setup_regs(device_t brdev, int b, int s, int f,
100 pcicfgregs *cfg);

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117static int cardbus_print_resources(struct resource_list *rl,
118 const char *name, int type, const char *format);
119static void cardbus_print_verbose(struct cardbus_devinfo *dinfo);
120static int cardbus_probe(device_t cbdev);
121static void cardbus_probe_nomatch(device_t cbdev, device_t child);
122static struct cardbus_devinfo *cardbus_read_device(device_t brdev, int b,
123 int s, int f);
124static void cardbus_read_extcap(device_t cbdev, pcicfgregs *cfg);
125static u_int32_t cardbus_read_config_method(device_t cbdev,
125static uint32_t cardbus_read_config_method(device_t cbdev,
126 device_t child, int reg, int width);
127static int cardbus_read_ivar(device_t cbdev, device_t child, int which,
128 u_long *result);
129static void cardbus_release_all_resources(device_t cbdev,
130 struct cardbus_devinfo *dinfo);
131static int cardbus_release_resource(device_t cbdev, device_t child,
132 int type, int rid, struct resource *r);
133static __inline void cardbus_set_command_bit(device_t cbdev, device_t child,
126 device_t child, int reg, int width);
127static int cardbus_read_ivar(device_t cbdev, device_t child, int which,
128 u_long *result);
129static void cardbus_release_all_resources(device_t cbdev,
130 struct cardbus_devinfo *dinfo);
131static int cardbus_release_resource(device_t cbdev, device_t child,
132 int type, int rid, struct resource *r);
133static __inline void cardbus_set_command_bit(device_t cbdev, device_t child,
134 u_int16_t bit);
134 uint16_t bit);
135static int cardbus_set_powerstate_method(device_t cbdev, device_t child,
136 int state);
137static int cardbus_set_resource(device_t cbdev, device_t child, int type,
138 int rid, u_long start, u_long count, struct resource *res);
139static int cardbus_set_resource_method(device_t cbdev, device_t child,
140 int type, int rid, u_long start, u_long count);
141static int cardbus_setup_intr(device_t cbdev, device_t child,
142 struct resource *irq, int flags, driver_intr_t *intr,
143 void *arg, void **cookiep);
144static int cardbus_teardown_intr(device_t cbdev, device_t child,
145 struct resource *irq, void *cookie);
146static void cardbus_write_config_method(device_t cbdev, device_t child,
135static int cardbus_set_powerstate_method(device_t cbdev, device_t child,
136 int state);
137static int cardbus_set_resource(device_t cbdev, device_t child, int type,
138 int rid, u_long start, u_long count, struct resource *res);
139static int cardbus_set_resource_method(device_t cbdev, device_t child,
140 int type, int rid, u_long start, u_long count);
141static int cardbus_setup_intr(device_t cbdev, device_t child,
142 struct resource *irq, int flags, driver_intr_t *intr,
143 void *arg, void **cookiep);
144static int cardbus_teardown_intr(device_t cbdev, device_t child,
145 struct resource *irq, void *cookie);
146static void cardbus_write_config_method(device_t cbdev, device_t child,
147 int reg, u_int32_t val, int width);
147 int reg, uint32_t val, int width);
148static int cardbus_write_ivar(device_t cbdev, device_t child, int which,
149 uintptr_t value);
150
151/************************************************************************/
152/* Probe/Attach */
153/************************************************************************/
154
155static int

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947
948 switch (which) {
949 case PCI_IVAR_ETHADDR:
950 /*
951 * The generic accessor doesn't deal with failure, so
952 * we set the return value, then return an error.
953 */
954 if ((dinfo->fepresent & (1 << TPL_FUNCE_LAN_NID)) == 0) {
148static int cardbus_write_ivar(device_t cbdev, device_t child, int which,
149 uintptr_t value);
150
151/************************************************************************/
152/* Probe/Attach */
153/************************************************************************/
154
155static int

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947
948 switch (which) {
949 case PCI_IVAR_ETHADDR:
950 /*
951 * The generic accessor doesn't deal with failure, so
952 * we set the return value, then return an error.
953 */
954 if ((dinfo->fepresent & (1 << TPL_FUNCE_LAN_NID)) == 0) {
955 *((u_int8_t **) result) = NULL;
955 *((uint8_t **) result) = NULL;
956 return (EINVAL);
957 }
956 return (EINVAL);
957 }
958 *((u_int8_t **) result) = dinfo->funce.lan.nid;
958 *((uint8_t **) result) = dinfo->funce.lan.nid;
959 break;
960 case PCI_IVAR_SUBVENDOR:
961 *result = cfg->subvendor;
962 break;
963 case PCI_IVAR_SUBDEVICE:
964 *result = cfg->subdevice;
965 break;
966 case PCI_IVAR_VENDOR:

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1044/*
1045 * PCI power manangement
1046 */
1047static int
1048cardbus_set_powerstate_method(device_t cbdev, device_t child, int state)
1049{
1050 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1051 pcicfgregs *cfg = &dinfo->pci.cfg;
959 break;
960 case PCI_IVAR_SUBVENDOR:
961 *result = cfg->subvendor;
962 break;
963 case PCI_IVAR_SUBDEVICE:
964 *result = cfg->subdevice;
965 break;
966 case PCI_IVAR_VENDOR:

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1044/*
1045 * PCI power manangement
1046 */
1047static int
1048cardbus_set_powerstate_method(device_t cbdev, device_t child, int state)
1049{
1050 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1051 pcicfgregs *cfg = &dinfo->pci.cfg;
1052 u_int16_t status;
1052 uint16_t status;
1053 int result;
1054
1055 if (cfg->pp_cap != 0) {
1056 status = PCI_READ_CONFIG(cbdev, child, cfg->pp_status, 2)
1057 & ~PCIM_PSTAT_DMASK;
1058 result = 0;
1059 switch (state) {
1060 case PCI_POWERSTATE_D0:

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1089 return (result);
1090}
1091
1092static int
1093cardbus_get_powerstate_method(device_t cbdev, device_t child)
1094{
1095 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1096 pcicfgregs *cfg = &dinfo->pci.cfg;
1053 int result;
1054
1055 if (cfg->pp_cap != 0) {
1056 status = PCI_READ_CONFIG(cbdev, child, cfg->pp_status, 2)
1057 & ~PCIM_PSTAT_DMASK;
1058 result = 0;
1059 switch (state) {
1060 case PCI_POWERSTATE_D0:

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1089 return (result);
1090}
1091
1092static int
1093cardbus_get_powerstate_method(device_t cbdev, device_t child)
1094{
1095 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1096 pcicfgregs *cfg = &dinfo->pci.cfg;
1097 u_int16_t status;
1097 uint16_t status;
1098 int result;
1099
1100 if (cfg->pp_cap != 0) {
1101 status = PCI_READ_CONFIG(cbdev, child, cfg->pp_status, 2);
1102 switch (status & PCIM_PSTAT_DMASK) {
1103 case PCIM_PSTAT_D0:
1104 result = PCI_POWERSTATE_D0;
1105 break;

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1118 }
1119 } else {
1120 /* No support, device is always at D0 */
1121 result = PCI_POWERSTATE_D0;
1122 }
1123 return (result);
1124}
1125
1098 int result;
1099
1100 if (cfg->pp_cap != 0) {
1101 status = PCI_READ_CONFIG(cbdev, child, cfg->pp_status, 2);
1102 switch (status & PCIM_PSTAT_DMASK) {
1103 case PCIM_PSTAT_D0:
1104 result = PCI_POWERSTATE_D0;
1105 break;

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1118 }
1119 } else {
1120 /* No support, device is always at D0 */
1121 result = PCI_POWERSTATE_D0;
1122 }
1123 return (result);
1124}
1125
1126static u_int32_t
1126static uint32_t
1127cardbus_read_config_method(device_t cbdev, device_t child, int reg, int width)
1128{
1129 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1130 pcicfgregs *cfg = &dinfo->pci.cfg;
1131
1132 return PCIB_READ_CONFIG(device_get_parent(cbdev),
1133 cfg->bus, cfg->slot, cfg->func, reg, width);
1134}
1135
1136static void
1137cardbus_write_config_method(device_t cbdev, device_t child, int reg,
1127cardbus_read_config_method(device_t cbdev, device_t child, int reg, int width)
1128{
1129 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1130 pcicfgregs *cfg = &dinfo->pci.cfg;
1131
1132 return PCIB_READ_CONFIG(device_get_parent(cbdev),
1133 cfg->bus, cfg->slot, cfg->func, reg, width);
1134}
1135
1136static void
1137cardbus_write_config_method(device_t cbdev, device_t child, int reg,
1138 u_int32_t val, int width)
1138 uint32_t val, int width)
1139{
1140 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1141 pcicfgregs *cfg = &dinfo->pci.cfg;
1142
1143 PCIB_WRITE_CONFIG(device_get_parent(cbdev),
1144 cfg->bus, cfg->slot, cfg->func, reg, val, width);
1145}
1146
1147static __inline void
1139{
1140 struct cardbus_devinfo *dinfo = device_get_ivars(child);
1141 pcicfgregs *cfg = &dinfo->pci.cfg;
1142
1143 PCIB_WRITE_CONFIG(device_get_parent(cbdev),
1144 cfg->bus, cfg->slot, cfg->func, reg, val, width);
1145}
1146
1147static __inline void
1148cardbus_set_command_bit(device_t cbdev, device_t child, u_int16_t bit)
1148cardbus_set_command_bit(device_t cbdev, device_t child, uint16_t bit)
1149{
1149{
1150 u_int16_t command;
1150 uint16_t command;
1151
1152 command = PCI_READ_CONFIG(cbdev, child, PCIR_COMMAND, 2);
1153 command |= bit;
1154 PCI_WRITE_CONFIG(cbdev, child, PCIR_COMMAND, command, 2);
1155}
1156
1157static __inline void
1151
1152 command = PCI_READ_CONFIG(cbdev, child, PCIR_COMMAND, 2);
1153 command |= bit;
1154 PCI_WRITE_CONFIG(cbdev, child, PCIR_COMMAND, command, 2);
1155}
1156
1157static __inline void
1158cardbus_clear_command_bit(device_t cbdev, device_t child, u_int16_t bit)
1158cardbus_clear_command_bit(device_t cbdev, device_t child, uint16_t bit)
1159{
1159{
1160 u_int16_t command;
1160 uint16_t command;
1161
1162 command = PCI_READ_CONFIG(cbdev, child, PCIR_COMMAND, 2);
1163 command &= ~bit;
1164 PCI_WRITE_CONFIG(cbdev, child, PCIR_COMMAND, command, 2);
1165}
1166
1167static void
1168cardbus_enable_busmaster_method(device_t cbdev, device_t child)

--- 97 unchanged lines hidden --- 		1161
1162 command = PCI_READ_CONFIG(cbdev, child, PCIR_COMMAND, 2);
1163 command &= ~bit;
1164 PCI_WRITE_CONFIG(cbdev, child, PCIR_COMMAND, command, 2);
1165}
1166
1167static void
1168cardbus_enable_busmaster_method(device_t cbdev, device_t child)

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