1 | /* $NetBSD: slide.c,v 1.29 2013/10/07 19:51:55 jakllsch Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2002 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Jason R. Thorpe. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: slide.c,v 1.29 2013/10/07 19:51:55 jakllsch Exp $" ); |
34 | |
35 | #include <sys/param.h> |
36 | #include <sys/systm.h> |
37 | |
38 | #include <dev/pci/pcivar.h> |
39 | #include <dev/pci/pcidevs.h> |
40 | #include <dev/pci/pciidereg.h> |
41 | #include <dev/pci/pciidevar.h> |
42 | #include <dev/pci/pciide_sl82c105_reg.h> |
43 | |
44 | static void sl82c105_chip_map(struct pciide_softc*, |
45 | const struct pci_attach_args*); |
46 | static void sl82c105_setup_channel(struct ata_channel*); |
47 | |
48 | static int slide_match(device_t, cfdata_t, void *); |
49 | static void slide_attach(device_t, device_t, void *); |
50 | |
51 | CFATTACH_DECL_NEW(slide, sizeof(struct pciide_softc), |
52 | slide_match, slide_attach, pciide_detach, NULL); |
53 | |
54 | static const struct pciide_product_desc pciide_symphony_products[] = { |
55 | { PCI_PRODUCT_SYMPHONY_82C105, |
56 | 0, |
57 | "Symphony Labs 82C105 IDE controller" , |
58 | sl82c105_chip_map, |
59 | }, |
60 | { 0, |
61 | 0, |
62 | NULL, |
63 | NULL, |
64 | } |
65 | }; |
66 | |
67 | static const struct pciide_product_desc pciide_winbond_products[] = { |
68 | { PCI_PRODUCT_WINBOND_W83C553F_1, |
69 | 0, |
70 | "Winbond W83C553F IDE controller" , |
71 | sl82c105_chip_map, |
72 | }, |
73 | { 0, |
74 | 0, |
75 | NULL, |
76 | NULL, |
77 | } |
78 | }; |
79 | |
80 | static int |
81 | slide_match(device_t parent, cfdata_t match, void *aux) |
82 | { |
83 | struct pci_attach_args *pa = aux; |
84 | |
85 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) { |
86 | if (pciide_lookup_product(pa->pa_id, pciide_symphony_products)) |
87 | return (2); |
88 | } |
89 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) { |
90 | if (pciide_lookup_product(pa->pa_id, pciide_winbond_products)) |
91 | return (2); |
92 | } |
93 | return (0); |
94 | } |
95 | |
96 | static void |
97 | slide_attach(device_t parent, device_t self, void *aux) |
98 | { |
99 | struct pci_attach_args *pa = aux; |
100 | struct pciide_softc *sc = device_private(self); |
101 | const struct pciide_product_desc *pp = NULL; |
102 | |
103 | sc->sc_wdcdev.sc_atac.atac_dev = self; |
104 | |
105 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SYMPHONY) |
106 | pp = pciide_lookup_product(pa->pa_id, pciide_symphony_products); |
107 | if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_WINBOND) |
108 | pp = pciide_lookup_product(pa->pa_id, pciide_winbond_products); |
109 | if (pp == NULL) |
110 | panic("slide_attach" ); |
111 | pciide_common_attach(sc, pa, pp); |
112 | } |
113 | |
114 | static int |
115 | sl82c105_bugchk(const struct pci_attach_args *pa) |
116 | { |
117 | |
118 | if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_WINBOND || |
119 | PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_WINBOND_W83C553F_0) |
120 | return (0); |
121 | |
122 | if (PCI_REVISION(pa->pa_class) <= 0x05) |
123 | return (1); |
124 | |
125 | return (0); |
126 | } |
127 | |
128 | static void |
129 | sl82c105_chip_map(struct pciide_softc *sc, const struct pci_attach_args *pa) |
130 | { |
131 | struct pciide_channel *cp; |
132 | pcireg_t interface, idecr; |
133 | int channel; |
134 | |
135 | if (pciide_chipen(sc, pa) == 0) |
136 | return; |
137 | |
138 | aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev, |
139 | "bus-master DMA support present" ); |
140 | |
141 | /* |
142 | * Check to see if we're part of the Winbond 83c553 Southbridge. |
143 | * If so, we need to disable DMA on rev. <= 5 of the southbridge. |
144 | */ |
145 | if (pci_find_device(NULL, sl82c105_bugchk)) { |
146 | aprint_verbose(" but disabled due to 83c553 rev. <= 0x05" ); |
147 | sc->sc_dma_ok = 0; |
148 | } else |
149 | pciide_mapreg_dma(sc, pa); |
150 | aprint_verbose("\n" ); |
151 | |
152 | sc->sc_wdcdev.sc_atac.atac_cap = ATAC_CAP_DATA32 | ATAC_CAP_DATA16; |
153 | sc->sc_wdcdev.sc_atac.atac_pio_cap = 4; |
154 | if (sc->sc_dma_ok) { |
155 | sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; |
156 | sc->sc_wdcdev.irqack = pciide_irqack; |
157 | sc->sc_wdcdev.sc_atac.atac_dma_cap = 2; |
158 | } |
159 | sc->sc_wdcdev.sc_atac.atac_set_modes = sl82c105_setup_channel; |
160 | |
161 | sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray; |
162 | sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS; |
163 | sc->sc_wdcdev.wdc_maxdrives = 2; |
164 | |
165 | idecr = pci_conf_read(sc->sc_pc, sc->sc_tag, SYMPH_IDECSR); |
166 | |
167 | interface = PCI_INTERFACE(pa->pa_class); |
168 | |
169 | wdc_allocate_regs(&sc->sc_wdcdev); |
170 | |
171 | for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels; |
172 | channel++) { |
173 | cp = &sc->pciide_channels[channel]; |
174 | if (pciide_chansetup(sc, channel, interface) == 0) |
175 | continue; |
176 | if ((channel == 0 && (idecr & IDECR_P0EN) == 0) || |
177 | (channel == 1 && (idecr & IDECR_P1EN) == 0)) { |
178 | aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev, |
179 | "%s channel ignored (disabled)\n" , cp->name); |
180 | cp->ata_channel.ch_flags |= ATACH_DISABLED; |
181 | continue; |
182 | } |
183 | pciide_mapchan(pa, cp, interface, pciide_pci_intr); |
184 | } |
185 | } |
186 | |
187 | static void |
188 | sl82c105_setup_channel(struct ata_channel *chp) |
189 | { |
190 | struct ata_drive_datas *drvp; |
191 | struct pciide_channel *cp = CHAN_TO_PCHAN(chp); |
192 | struct pciide_softc *sc = CHAN_TO_PCIIDE(chp); |
193 | int pxdx_reg, drive, s; |
194 | pcireg_t pxdx; |
195 | |
196 | /* Set up DMA if needed. */ |
197 | pciide_channel_dma_setup(cp); |
198 | |
199 | for (drive = 0; drive < 2; drive++) { |
200 | pxdx_reg = ((chp->ch_channel == 0) ? SYMPH_P0D0CR |
201 | : SYMPH_P1D0CR) + |
202 | (drive * 4); |
203 | |
204 | pxdx = pci_conf_read(sc->sc_pc, sc->sc_tag, pxdx_reg); |
205 | |
206 | pxdx &= ~(PxDx_CMD_ON_MASK|PxDx_CMD_OFF_MASK); |
207 | pxdx &= ~(PxDx_PWEN|PxDx_RDYEN|PxDx_RAEN); |
208 | |
209 | drvp = &chp->ch_drive[drive]; |
210 | /* If no drive, skip. */ |
211 | if (drvp->drive_type == ATA_DRIVET_NONE) { |
212 | pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); |
213 | continue; |
214 | } |
215 | |
216 | if (drvp->drive_flags & ATA_DRIVE_DMA) { |
217 | /* |
218 | * Timings will be used for both PIO and DMA, |
219 | * so adjust DMA mode if needed. |
220 | */ |
221 | if (drvp->PIO_mode >= 3) { |
222 | if ((drvp->DMA_mode + 2) > drvp->PIO_mode) |
223 | drvp->DMA_mode = drvp->PIO_mode - 2; |
224 | if (drvp->DMA_mode < 1) { |
225 | /* |
226 | * Can't mix both PIO and DMA. |
227 | * Disable DMA. |
228 | */ |
229 | s = splbio(); |
230 | drvp->drive_flags &= ~ATA_DRIVE_DMA; |
231 | splx(s); |
232 | } |
233 | } else { |
234 | /* |
235 | * Can't mix both PIO and DMA. Disable |
236 | * DMA. |
237 | */ |
238 | s = splbio(); |
239 | drvp->drive_flags &= ~ATA_DRIVE_DMA; |
240 | splx(s); |
241 | } |
242 | } |
243 | |
244 | if (drvp->drive_flags & ATA_DRIVE_DMA) { |
245 | /* Use multi-word DMA. */ |
246 | pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_on << |
247 | PxDx_CMD_ON_SHIFT; |
248 | pxdx |= symph_mw_dma_times[drvp->DMA_mode].cmd_off; |
249 | } else { |
250 | pxdx |= symph_pio_times[drvp->PIO_mode].cmd_on << |
251 | PxDx_CMD_ON_SHIFT; |
252 | pxdx |= symph_pio_times[drvp->PIO_mode].cmd_off; |
253 | } |
254 | |
255 | /* XXX PxDx_PWEN? PxDx_RDYEN? PxDx_RAEN? */ |
256 | |
257 | /* ...and set the mode for this drive. */ |
258 | pci_conf_write(sc->sc_pc, sc->sc_tag, pxdx_reg, pxdx); |
259 | } |
260 | } |
261 | |