1 | /* $NetBSD: if_re_pci.c,v 1.45 2015/12/14 20:01:17 jakllsch Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1997, 1998-2003 |
5 | * Bill Paul <wpaul@windriver.com>. All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. All advertising materials mentioning features or use of this software |
16 | * must display the following acknowledgement: |
17 | * This product includes software developed by Bill Paul. |
18 | * 4. Neither the name of the author nor the names of any co-contributors |
19 | * may be used to endorse or promote products derived from this software |
20 | * without specific prior written permission. |
21 | * |
22 | * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD |
26 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
32 | * THE POSSIBILITY OF SUCH DAMAGE. |
33 | */ |
34 | |
35 | /* $FreeBSD: /repoman/r/ncvs/src/sys/dev/re/if_re.c,v 1.20 2004/04/11 20:34:08 ru Exp $ */ |
36 | |
37 | /* |
38 | * RealTek 8139C+/8169/8169S/8110S PCI NIC driver |
39 | * |
40 | * Written by Bill Paul <wpaul@windriver.com> |
41 | * Senior Networking Software Engineer |
42 | * Wind River Systems |
43 | * |
44 | * NetBSD bus-specific frontends for written by |
45 | * Jonathan Stone <jonathan@netbsd.org> |
46 | */ |
47 | |
48 | #include <sys/cdefs.h> |
49 | __KERNEL_RCSID(0, "$NetBSD: if_re_pci.c,v 1.45 2015/12/14 20:01:17 jakllsch Exp $" ); |
50 | |
51 | #include <sys/types.h> |
52 | |
53 | #include <sys/param.h> |
54 | #include <sys/systm.h> |
55 | #include <sys/device.h> |
56 | |
57 | #include <net/if.h> |
58 | #include <net/if_ether.h> |
59 | #include <net/if_media.h> |
60 | |
61 | #include <sys/bus.h> |
62 | |
63 | #include <dev/mii/mii.h> |
64 | #include <dev/mii/miivar.h> |
65 | |
66 | #include <dev/pci/pcireg.h> |
67 | #include <dev/pci/pcivar.h> |
68 | #include <dev/pci/pcidevs.h> |
69 | |
70 | #include <dev/ic/rtl81x9reg.h> |
71 | #include <dev/ic/rtl81x9var.h> |
72 | #include <dev/ic/rtl8169var.h> |
73 | |
74 | struct re_pci_softc { |
75 | struct rtk_softc sc_rtk; |
76 | |
77 | void *sc_ih; |
78 | pci_intr_handle_t *sc_pihp; |
79 | pci_chipset_tag_t sc_pc; |
80 | }; |
81 | |
82 | static int re_pci_match(device_t, cfdata_t, void *); |
83 | static void re_pci_attach(device_t, device_t, void *); |
84 | static int re_pci_detach(device_t, int); |
85 | |
86 | CFATTACH_DECL_NEW(re_pci, sizeof(struct re_pci_softc), |
87 | re_pci_match, re_pci_attach, re_pci_detach, NULL); |
88 | |
89 | /* |
90 | * Various supported device vendors/types and their names. |
91 | */ |
92 | static const struct rtk_type re_devs[] = { |
93 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8139, |
94 | RTK_8139CPLUS, |
95 | "RealTek 8139C+ 10/100BaseTX" }, |
96 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8101E, |
97 | RTK_8101E, |
98 | "RealTek 8100E/8101E/8102E/8102EL PCIe 10/100BaseTX" }, |
99 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8168, |
100 | RTK_8168, |
101 | "RealTek 8168/8111 PCIe Gigabit Ethernet" }, |
102 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169, |
103 | RTK_8169, |
104 | "RealTek 8169/8110 Gigabit Ethernet" }, |
105 | { PCI_VENDOR_REALTEK, PCI_PRODUCT_REALTEK_RT8169SC, |
106 | RTK_8169, |
107 | "RealTek 8169SC/8110SC Single-chip Gigabit Ethernet" }, |
108 | { PCI_VENDOR_COREGA, PCI_PRODUCT_COREGA_LAPCIGT, |
109 | RTK_8169, |
110 | "Corega CG-LAPCIGT Gigabit Ethernet" }, |
111 | { PCI_VENDOR_DLINK, PCI_PRODUCT_DLINK_DGE528T, |
112 | RTK_8169, |
113 | "D-Link DGE-528T Gigabit Ethernet" }, |
114 | { PCI_VENDOR_USR2, PCI_PRODUCT_USR2_USR997902, |
115 | RTK_8169, |
116 | "US Robotics (3Com) USR997902 Gigabit Ethernet" }, |
117 | { PCI_VENDOR_LINKSYS, PCI_PRODUCT_LINKSYS_EG1032, |
118 | RTK_8169, |
119 | "Linksys EG1032 rev. 3 Gigabit Ethernet" }, |
120 | }; |
121 | |
122 | static const struct rtk_type * |
123 | re_pci_lookup(const struct pci_attach_args * pa) |
124 | { |
125 | int i; |
126 | |
127 | for(i = 0; i < __arraycount(re_devs); i++) { |
128 | if (PCI_VENDOR(pa->pa_id) != re_devs[i].rtk_vid) |
129 | continue; |
130 | if (PCI_PRODUCT(pa->pa_id) == re_devs[i].rtk_did) |
131 | return &re_devs[i]; |
132 | } |
133 | |
134 | return NULL; |
135 | } |
136 | |
137 | #define RE_LINKSYS_EG1032_SUBID 0x00241737 |
138 | |
139 | /* |
140 | * Probe for a RealTek 8139C+/8169/8110 chip. Check the PCI vendor and device |
141 | * IDs against our list and return a device name if we find a match. |
142 | */ |
143 | static int |
144 | re_pci_match(device_t parent, cfdata_t cf, void *aux) |
145 | { |
146 | struct pci_attach_args *pa = aux; |
147 | pcireg_t subid; |
148 | |
149 | subid = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_SUBSYS_ID_REG); |
150 | |
151 | /* special-case Linksys EG1032, since rev 2 uses sk(4) */ |
152 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LINKSYS && |
153 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_LINKSYS_EG1032) { |
154 | if (subid != RE_LINKSYS_EG1032_SUBID) |
155 | return 0; |
156 | } |
157 | |
158 | /* Don't match 8139 other than C-PLUS */ |
159 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_REALTEK && |
160 | PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_REALTEK_RT8139) { |
161 | if (PCI_REVISION(pa->pa_class) != 0x20) |
162 | return 0; |
163 | } |
164 | |
165 | if (re_pci_lookup(pa) != NULL) |
166 | return 2; /* defeat rtk(4) */ |
167 | |
168 | return 0; |
169 | } |
170 | |
171 | static void |
172 | re_pci_attach(device_t parent, device_t self, void *aux) |
173 | { |
174 | struct re_pci_softc *psc = device_private(self); |
175 | struct rtk_softc *sc = &psc->sc_rtk; |
176 | struct pci_attach_args *pa = aux; |
177 | pci_chipset_tag_t pc = pa->pa_pc; |
178 | const char *intrstr = NULL; |
179 | const struct rtk_type *t; |
180 | uint32_t hwrev; |
181 | pcireg_t command, memtype; |
182 | bool ioh_valid, memh_valid; |
183 | bus_space_tag_t iot, memt; |
184 | bus_space_handle_t ioh, memh; |
185 | bus_size_t iosize, memsize; |
186 | char intrbuf[PCI_INTRSTR_LEN]; |
187 | |
188 | sc->sc_dev = self; |
189 | psc->sc_pc = pa->pa_pc; |
190 | |
191 | command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); |
192 | command |= PCI_COMMAND_MASTER_ENABLE; |
193 | pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); |
194 | |
195 | /* |
196 | * Map control/status registers. |
197 | */ |
198 | ioh_valid = (pci_mapreg_map(pa, RTK_PCI_LOIO, PCI_MAPREG_TYPE_IO, 0, |
199 | &iot, &ioh, NULL, &iosize) == 0); |
200 | memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, RTK_PCI_LOMEM); |
201 | switch (memtype) { |
202 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: |
203 | case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: |
204 | memh_valid = |
205 | (pci_mapreg_map(pa, RTK_PCI_LOMEM, |
206 | memtype, 0, &memt, &memh, NULL, &memsize) == 0) || |
207 | (pci_mapreg_map(pa, RTK_PCI_LOMEM + 4, |
208 | PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT, |
209 | 0, &memt, &memh, NULL, &memsize) == 0); |
210 | break; |
211 | default: |
212 | memh_valid = 0; |
213 | break; |
214 | } |
215 | |
216 | if (ioh_valid) { |
217 | sc->rtk_btag = iot; |
218 | sc->rtk_bhandle = ioh; |
219 | sc->rtk_bsize = iosize; |
220 | if (memh_valid) |
221 | bus_space_unmap(memt, memh, memsize); |
222 | } else if (memh_valid) { |
223 | sc->rtk_btag = memt; |
224 | sc->rtk_bhandle = memh; |
225 | sc->rtk_bsize = memsize; |
226 | } else { |
227 | aprint_error(": can't map registers\n" ); |
228 | return; |
229 | } |
230 | |
231 | t = re_pci_lookup(pa); |
232 | KASSERT(t != NULL); |
233 | |
234 | pci_aprint_devinfo_fancy(pa, NULL, t->rtk_name, 1); |
235 | |
236 | if (t->rtk_basetype == RTK_8139CPLUS) |
237 | sc->sc_quirk |= RTKQ_8139CPLUS; |
238 | |
239 | if (t->rtk_basetype == RTK_8168 || |
240 | t->rtk_basetype == RTK_8101E) |
241 | sc->sc_quirk |= RTKQ_PCIE; |
242 | |
243 | if (pci_dma64_available(pa) && (sc->sc_quirk & RTKQ_PCIE)) |
244 | sc->sc_dmat = pa->pa_dmat64; |
245 | else |
246 | sc->sc_dmat = pa->pa_dmat; |
247 | |
248 | /* |
249 | * No power/enable/disable machinery for PCI attach; |
250 | * mark the card enabled now. |
251 | */ |
252 | sc->sc_flags |= RTK_ENABLED; |
253 | |
254 | /* Hook interrupt last to avoid having to lock softc */ |
255 | /* Allocate interrupt */ |
256 | if (pci_intr_alloc(pa, &psc->sc_pihp, NULL, 0)) { |
257 | aprint_error_dev(self, "couldn't map interrupt\n" ); |
258 | return; |
259 | } |
260 | intrstr = pci_intr_string(pc, psc->sc_pihp[0], intrbuf, |
261 | sizeof(intrbuf)); |
262 | psc->sc_ih = pci_intr_establish(pc, psc->sc_pihp[0], IPL_NET, |
263 | re_intr, sc); |
264 | if (psc->sc_ih == NULL) { |
265 | aprint_error_dev(self, "couldn't establish interrupt" ); |
266 | if (intrstr != NULL) |
267 | aprint_error(" at %s" , intrstr); |
268 | aprint_error("\n" ); |
269 | return; |
270 | } |
271 | aprint_normal_dev(self, "interrupting at %s\n" , intrstr); |
272 | |
273 | re_attach(sc); |
274 | |
275 | hwrev = CSR_READ_4(sc, RTK_TXCFG) & RTK_TXCFG_HWREV; |
276 | |
277 | /* |
278 | * Perform hardware diagnostic on the original RTL8169. |
279 | * Some 32-bit cards were incorrectly wired and would |
280 | * malfunction if plugged into a 64-bit slot. |
281 | */ |
282 | if (hwrev == RTK_HWREV_8169) { |
283 | if (re_diag(sc)) { |
284 | re_pci_detach(self, 0); |
285 | aprint_error_dev(self, "disabled\n" ); |
286 | } |
287 | } |
288 | } |
289 | |
290 | static int |
291 | re_pci_detach(device_t self, int flags) |
292 | { |
293 | struct re_pci_softc *psc = device_private(self); |
294 | struct rtk_softc *sc = &psc->sc_rtk; |
295 | int rv; |
296 | |
297 | if ((sc->sc_flags & RTK_ATTACHED) != 0) |
298 | /* re_stop() */ |
299 | sc->ethercom.ec_if.if_stop(&sc->ethercom.ec_if, 0); |
300 | |
301 | rv = re_detach(sc); |
302 | if (rv) |
303 | return rv; |
304 | |
305 | if (psc->sc_ih != NULL) { |
306 | pci_intr_disestablish(psc->sc_pc, psc->sc_ih); |
307 | psc->sc_ih = NULL; |
308 | } |
309 | |
310 | if (psc->sc_pihp != NULL) { |
311 | pci_intr_release(psc->sc_pc, psc->sc_pihp, 1); |
312 | psc->sc_pihp = NULL; |
313 | } |
314 | |
315 | if (sc->rtk_bsize != 0) { |
316 | bus_space_unmap(sc->rtk_btag, sc->rtk_bhandle, sc->rtk_bsize); |
317 | sc->rtk_bsize = 0; |
318 | } |
319 | |
320 | return 0; |
321 | } |
322 | |