1 /*-
2  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
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
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification, immediately at the beginning of the file.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 /* local prototypes */
28 static int ata_serverworks_chipinit(device_t dev);
29 static int ata_serverworks_allocate(device_t dev);
30 static void ata_serverworks_tf_read(struct ata_request *request);
31 static void ata_serverworks_tf_write(struct ata_request *request);
32 static void ata_serverworks_setmode(device_t dev, int mode);
33 
34 /* misc defines */
35 #define SWKS_33		0
36 #define SWKS_66		1
37 #define SWKS_100	2
38 #define SWKS_MIO	3
39 
40 /*
41  * ServerWorks chipset support functions
42  */
43 int
44 ata_serverworks_ident(device_t dev)
45 {
46     struct ata_pci_controller *ctlr = device_get_softc(dev);
47     static const struct ata_chip_id ids[] =
48     {{ ATA_ROSB4,     0x00, SWKS_33,  0, ATA_UDMA2, "ROSB4" },
49      { ATA_CSB5,      0x92, SWKS_100, 0, ATA_UDMA5, "CSB5" },
50      { ATA_CSB5,      0x00, SWKS_66,  0, ATA_UDMA4, "CSB5" },
51      { ATA_CSB6,      0x00, SWKS_100, 0, ATA_UDMA5, "CSB6" },
52      { ATA_CSB6_1,    0x00, SWKS_66,  0, ATA_UDMA4, "CSB6" },
53      { ATA_HT1000,    0x00, SWKS_100, 0, ATA_UDMA5, "HT1000" },
54      { ATA_HT1000_S1, 0x00, SWKS_MIO, 4, ATA_SA150, "HT1000" },
55      { ATA_HT1000_S2, 0x00, SWKS_MIO, 4, ATA_SA150, "HT1000" },
56      { ATA_K2,        0x00, SWKS_MIO, 4, ATA_SA150, "K2" },
57      { ATA_FRODO4,    0x00, SWKS_MIO, 4, ATA_SA150, "Frodo4" },
58      { ATA_FRODO8,    0x00, SWKS_MIO, 8, ATA_SA150, "Frodo8" },
59      { 0, 0, 0, 0, 0, 0}};
60 
61     if (pci_get_vendor(dev) != ATA_SERVERWORKS_ID)
62 	return ENXIO;
63 
64     if (!(ctlr->chip = ata_match_chip(dev, ids)))
65 	return ENXIO;
66 
67     ata_set_desc(dev);
68     ctlr->chipinit = ata_serverworks_chipinit;
69     return 0;
70 }
71 
72 static int
73 ata_serverworks_chipinit(device_t dev)
74 {
75     struct ata_pci_controller *ctlr = device_get_softc(dev);
76 
77     if (ata_setup_interrupt(dev, ata_generic_intr))
78 	return ENXIO;
79 
80     if (ctlr->chip->cfg1 == SWKS_MIO) {
81 	ctlr->r_type2 = SYS_RES_MEMORY;
82 	ctlr->r_rid2 = PCIR_BAR(5);
83 	if (!(ctlr->r_res2 = bus_alloc_resource_any(dev, ctlr->r_type2,
84 						    &ctlr->r_rid2, RF_ACTIVE))){
85 	    ata_teardown_interrupt(dev);
86 	    return ENXIO;
87 	}
88 
89 	ctlr->channels = ctlr->chip->cfg2;
90 	ctlr->allocate = ata_serverworks_allocate;
91 	ctlr->setmode = ata_sata_setmode;
92 	return 0;
93     }
94     else if (ctlr->chip->cfg1 == SWKS_33) {
95 	device_t *children;
96 	int nchildren, i;
97 
98 	/* locate the ISA part in the southbridge and enable UDMA33 */
99 	if (!device_get_children(device_get_parent(dev), &children,&nchildren)){
100 	    for (i = 0; i < nchildren; i++) {
101 		if (pci_get_devid(children[i]) == ATA_ROSB4_ISA) {
102 		    pci_write_config(children[i], 0x64,
103 				     (pci_read_config(children[i], 0x64, 4) &
104 				      ~0x00002000) | 0x00004000, 4);
105 		    break;
106 		}
107 	    }
108 	    kfree(children, M_TEMP);
109 	}
110     }
111     else {
112 	pci_write_config(dev, 0x5a,
113 			 (pci_read_config(dev, 0x5a, 1) & ~0x40) |
114 			 (ctlr->chip->cfg1 == SWKS_100) ? 0x03 : 0x02, 1);
115     }
116     ctlr->setmode = ata_serverworks_setmode;
117     return 0;
118 }
119 
120 static int
121 ata_serverworks_allocate(device_t dev)
122 {
123     struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
124     struct ata_channel *ch = device_get_softc(dev);
125     int ch_offset;
126     int i;
127 
128     ch_offset = ch->unit * 0x100;
129 
130     for (i = ATA_DATA; i < ATA_MAX_RES; i++)
131 	ch->r_io[i].res = ctlr->r_res2;
132 
133     /* setup ATA registers */
134     ch->r_io[ATA_DATA].offset = ch_offset + 0x00;
135     ch->r_io[ATA_FEATURE].offset = ch_offset + 0x04;
136     ch->r_io[ATA_COUNT].offset = ch_offset + 0x08;
137     ch->r_io[ATA_SECTOR].offset = ch_offset + 0x0c;
138     ch->r_io[ATA_CYL_LSB].offset = ch_offset + 0x10;
139     ch->r_io[ATA_CYL_MSB].offset = ch_offset + 0x14;
140     ch->r_io[ATA_DRIVE].offset = ch_offset + 0x18;
141     ch->r_io[ATA_COMMAND].offset = ch_offset + 0x1c;
142     ch->r_io[ATA_CONTROL].offset = ch_offset + 0x20;
143     ata_default_registers(dev);
144 
145     /* setup DMA registers */
146     ch->r_io[ATA_BMCMD_PORT].offset = ch_offset + 0x30;
147     ch->r_io[ATA_BMSTAT_PORT].offset = ch_offset + 0x32;
148     ch->r_io[ATA_BMDTP_PORT].offset = ch_offset + 0x34;
149 
150     /* setup SATA registers */
151     ch->r_io[ATA_SSTATUS].offset = ch_offset + 0x40;
152     ch->r_io[ATA_SERROR].offset = ch_offset + 0x44;
153     ch->r_io[ATA_SCONTROL].offset = ch_offset + 0x48;
154 
155     ch->flags |= ATA_NO_SLAVE;
156     ata_pci_hw(dev);
157     ch->hw.tf_read = ata_serverworks_tf_read;
158     ch->hw.tf_write = ata_serverworks_tf_write;
159 
160     /* chip does not reliably do 64K DMA transfers */
161     if (ch->dma)
162 	ch->dma->max_iosize = 64 * DEV_BSIZE;
163 
164     return 0;
165 }
166 
167 static void
168 ata_serverworks_tf_read(struct ata_request *request)
169 {
170     struct ata_channel *ch = device_get_softc(request->parent);
171     struct ata_device *atadev = device_get_softc(request->dev);
172 
173     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
174 	u_int16_t temp;
175 
176 	request->u.ata.count = ATA_IDX_INW(ch, ATA_COUNT);
177 	temp = ATA_IDX_INW(ch, ATA_SECTOR);
178 	request->u.ata.lba = (u_int64_t)(temp & 0x00ff) |
179 			     ((u_int64_t)(temp & 0xff00) << 24);
180 	temp = ATA_IDX_INW(ch, ATA_CYL_LSB);
181 	request->u.ata.lba |= ((u_int64_t)(temp & 0x00ff) << 8) |
182 			      ((u_int64_t)(temp & 0xff00) << 32);
183 	temp = ATA_IDX_INW(ch, ATA_CYL_MSB);
184 	request->u.ata.lba |= ((u_int64_t)(temp & 0x00ff) << 16) |
185 			      ((u_int64_t)(temp & 0xff00) << 40);
186     }
187     else {
188 	request->u.ata.count = ATA_IDX_INW(ch, ATA_COUNT) & 0x00ff;
189 	request->u.ata.lba = (ATA_IDX_INW(ch, ATA_SECTOR) & 0x00ff) |
190 			     ((ATA_IDX_INW(ch, ATA_CYL_LSB) & 0x00ff) << 8) |
191 			     ((ATA_IDX_INW(ch, ATA_CYL_MSB) & 0x00ff) << 16) |
192 			     ((ATA_IDX_INW(ch, ATA_DRIVE) & 0xf) << 24);
193     }
194 }
195 
196 static void
197 ata_serverworks_tf_write(struct ata_request *request)
198 {
199     struct ata_channel *ch = device_get_softc(request->parent);
200     struct ata_device *atadev = device_get_softc(request->dev);
201 
202     if (atadev->flags & ATA_D_48BIT_ACTIVE) {
203 	ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
204 	ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
205 	ATA_IDX_OUTW(ch, ATA_SECTOR, ((request->u.ata.lba >> 16) & 0xff00) |
206 				      (request->u.ata.lba & 0x00ff));
207 	ATA_IDX_OUTW(ch, ATA_CYL_LSB, ((request->u.ata.lba >> 24) & 0xff00) |
208 				       ((request->u.ata.lba >> 8) & 0x00ff));
209 	ATA_IDX_OUTW(ch, ATA_CYL_MSB, ((request->u.ata.lba >> 32) & 0xff00) |
210 				       ((request->u.ata.lba >> 16) & 0x00ff));
211 	ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_LBA | ATA_DEV(atadev->unit));
212     }
213     else {
214 	ATA_IDX_OUTW(ch, ATA_FEATURE, request->u.ata.feature);
215 	ATA_IDX_OUTW(ch, ATA_COUNT, request->u.ata.count);
216 	if (atadev->flags & ATA_D_USE_CHS) {
217 	    int heads, sectors;
218 
219 	    if (atadev->param.atavalid & ATA_FLAG_54_58) {
220 		heads = atadev->param.current_heads;
221 		sectors = atadev->param.current_sectors;
222 	    }
223 	    else {
224 		heads = atadev->param.heads;
225 		sectors = atadev->param.sectors;
226 	    }
227 
228 	    ATA_IDX_OUTW(ch, ATA_SECTOR, (request->u.ata.lba % sectors)+1);
229 	    ATA_IDX_OUTW(ch, ATA_CYL_LSB,
230 			 (request->u.ata.lba / (sectors * heads)));
231 	    ATA_IDX_OUTW(ch, ATA_CYL_MSB,
232 			 (request->u.ata.lba / (sectors * heads)) >> 8);
233 	    ATA_IDX_OUTW(ch, ATA_DRIVE, ATA_D_IBM | ATA_DEV(atadev->unit) |
234 			 (((request->u.ata.lba% (sectors * heads)) /
235 			   sectors) & 0xf));
236 	}
237 	else {
238 	    ATA_IDX_OUTW(ch, ATA_SECTOR, request->u.ata.lba);
239 	    ATA_IDX_OUTW(ch, ATA_CYL_LSB, request->u.ata.lba >> 8);
240 	    ATA_IDX_OUTW(ch, ATA_CYL_MSB, request->u.ata.lba >> 16);
241 	    ATA_IDX_OUTW(ch, ATA_DRIVE,
242 			 ATA_D_IBM | ATA_D_LBA | ATA_DEV(atadev->unit) |
243 			 ((request->u.ata.lba >> 24) & 0x0f));
244 	}
245     }
246 }
247 
248 static void
249 ata_serverworks_setmode(device_t dev, int mode)
250 {
251     device_t gparent = GRANDPARENT(dev);
252     struct ata_pci_controller *ctlr = device_get_softc(gparent);
253     struct ata_channel *ch = device_get_softc(device_get_parent(dev));
254     struct ata_device *atadev = device_get_softc(dev);
255     int devno = (ch->unit << 1) + atadev->unit;
256     int offset = (devno ^ 0x01) << 3;
257     int error;
258     static const uint8_t piotimings[] =
259 			    { 0x5d, 0x47, 0x34, 0x22, 0x20, 0x34, 0x22, 0x20,
260 			      0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
261     static const uint8_t dmatimings[] = { 0x77, 0x21, 0x20 };
262 
263     mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma);
264 
265     mode = ata_check_80pin(dev, mode);
266 
267     error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode);
268 
269     if (bootverbose)
270 	device_printf(dev, "%ssetting %s on %s chip\n",
271 		      (error) ? "FAILURE " : "",
272 		      ata_mode2str(mode), ctlr->chip->text);
273     if (!error) {
274 	if (mode >= ATA_UDMA0) {
275 	    pci_write_config(gparent, 0x56,
276 			     (pci_read_config(gparent, 0x56, 2) &
277 			      ~(0xf << (devno << 2))) |
278 			     ((mode & ATA_MODE_MASK) << (devno << 2)), 2);
279 	    pci_write_config(gparent, 0x54,
280 			     pci_read_config(gparent, 0x54, 1) |
281 			     (0x01 << devno), 1);
282 	    pci_write_config(gparent, 0x44,
283 			     (pci_read_config(gparent, 0x44, 4) &
284 			      ~(0xff << offset)) |
285 			     (dmatimings[2] << offset), 4);
286 	}
287 	else if (mode >= ATA_WDMA0) {
288 	    pci_write_config(gparent, 0x54,
289 			     pci_read_config(gparent, 0x54, 1) &
290 			      ~(0x01 << devno), 1);
291 	    pci_write_config(gparent, 0x44,
292 			     (pci_read_config(gparent, 0x44, 4) &
293 			      ~(0xff << offset)) |
294 			     (dmatimings[mode & ATA_MODE_MASK] << offset), 4);
295 	}
296 	else
297 	    pci_write_config(gparent, 0x54,
298 			     pci_read_config(gparent, 0x54, 1) &
299 			     ~(0x01 << devno), 1);
300 
301 	pci_write_config(gparent, 0x40,
302 			 (pci_read_config(gparent, 0x40, 4) &
303 			  ~(0xff << offset)) |
304 			 (piotimings[ata_mode2idx(mode)] << offset), 4);
305 	atadev->mode = mode;
306     }
307 }
308