ide: delete filenames/versions from comments
[pandora-kernel.git] / drivers / ide / pci / hpt34x.c
1 /*
2  * Copyright (C) 1998-2000      Andre Hedrick <andre@linux-ide.org>
3  *
4  * May be copied or modified under the terms of the GNU General Public License
5  *
6  *
7  * 00:12.0 Unknown mass storage controller:
8  * Triones Technologies, Inc.
9  * Unknown device 0003 (rev 01)
10  *
11  * hde: UDMA 2 (0x0000 0x0002) (0x0000 0x0010)
12  * hdf: UDMA 2 (0x0002 0x0012) (0x0010 0x0030)
13  * hde: DMA 2  (0x0000 0x0002) (0x0000 0x0010)
14  * hdf: DMA 2  (0x0002 0x0012) (0x0010 0x0030)
15  * hdg: DMA 1  (0x0012 0x0052) (0x0030 0x0070)
16  * hdh: DMA 1  (0x0052 0x0252) (0x0070 0x00f0)
17  *
18  * ide-pci.c reference
19  *
20  * Since there are two cards that report almost identically,
21  * the only discernable difference is the values reported in pcicmd.
22  * Booting-BIOS card or HPT363 :: pcicmd == 0x07
23  * Non-bootable card or HPT343 :: pcicmd == 0x05
24  */
25
26 #include <linux/module.h>
27 #include <linux/types.h>
28 #include <linux/kernel.h>
29 #include <linux/delay.h>
30 #include <linux/timer.h>
31 #include <linux/mm.h>
32 #include <linux/ioport.h>
33 #include <linux/blkdev.h>
34 #include <linux/hdreg.h>
35 #include <linux/interrupt.h>
36 #include <linux/pci.h>
37 #include <linux/init.h>
38 #include <linux/ide.h>
39
40 #include <asm/io.h>
41 #include <asm/irq.h>
42
43 #define HPT343_DEBUG_DRIVE_INFO         0
44
45 static void hpt34x_set_mode(ide_drive_t *drive, const u8 speed)
46 {
47         struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
48         u32 reg1= 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
49         u8                      hi_speed, lo_speed;
50
51         hi_speed = speed >> 4;
52         lo_speed = speed & 0x0f;
53
54         if (hi_speed & 7) {
55                 hi_speed = (hi_speed & 4) ? 0x01 : 0x10;
56         } else {
57                 lo_speed <<= 5;
58                 lo_speed >>= 5;
59         }
60
61         pci_read_config_dword(dev, 0x44, &reg1);
62         pci_read_config_dword(dev, 0x48, &reg2);
63         tmp1 = ((lo_speed << (3*drive->dn)) | (reg1 & ~(7 << (3*drive->dn))));
64         tmp2 = ((hi_speed << drive->dn) | (reg2 & ~(0x11 << drive->dn)));
65         pci_write_config_dword(dev, 0x44, tmp1);
66         pci_write_config_dword(dev, 0x48, tmp2);
67
68 #if HPT343_DEBUG_DRIVE_INFO
69         printk("%s: %s drive%d (0x%04x 0x%04x) (0x%04x 0x%04x)" \
70                 " (0x%02x 0x%02x)\n",
71                 drive->name, ide_xfer_verbose(speed),
72                 drive->dn, reg1, tmp1, reg2, tmp2,
73                 hi_speed, lo_speed);
74 #endif /* HPT343_DEBUG_DRIVE_INFO */
75 }
76
77 static void hpt34x_set_pio_mode(ide_drive_t *drive, const u8 pio)
78 {
79         hpt34x_set_mode(drive, XFER_PIO_0 + pio);
80 }
81
82 /*
83  * If the BIOS does not set the IO base addaress to XX00, 343 will fail.
84  */
85 #define HPT34X_PCI_INIT_REG             0x80
86
87 static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev, const char *name)
88 {
89         int i = 0;
90         unsigned long hpt34xIoBase = pci_resource_start(dev, 4);
91         unsigned long hpt_addr[4] = { 0x20, 0x34, 0x28, 0x3c };
92         unsigned long hpt_addr_len[4] = { 7, 3, 7, 3 };
93         u16 cmd;
94         unsigned long flags;
95
96         local_irq_save(flags);
97
98         pci_write_config_byte(dev, HPT34X_PCI_INIT_REG, 0x00);
99         pci_read_config_word(dev, PCI_COMMAND, &cmd);
100
101         if (cmd & PCI_COMMAND_MEMORY)
102                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
103         else
104                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
105
106         /*
107          * Since 20-23 can be assigned and are R/W, we correct them.
108          */
109         pci_write_config_word(dev, PCI_COMMAND, cmd & ~PCI_COMMAND_IO);
110         for(i=0; i<4; i++) {
111                 dev->resource[i].start = (hpt34xIoBase + hpt_addr[i]);
112                 dev->resource[i].end = dev->resource[i].start + hpt_addr_len[i];
113                 dev->resource[i].flags = IORESOURCE_IO;
114                 pci_write_config_dword(dev,
115                                 (PCI_BASE_ADDRESS_0 + (i * 4)),
116                                 dev->resource[i].start);
117         }
118         pci_write_config_word(dev, PCI_COMMAND, cmd);
119
120         local_irq_restore(flags);
121
122         return dev->irq;
123 }
124
125 static void __devinit init_hwif_hpt34x(ide_hwif_t *hwif)
126 {
127         hwif->set_pio_mode = &hpt34x_set_pio_mode;
128         hwif->set_dma_mode = &hpt34x_set_mode;
129 }
130
131 #define IDE_HFLAGS_HPT34X \
132         (IDE_HFLAG_NO_ATAPI_DMA | \
133          IDE_HFLAG_NO_DSC | \
134          IDE_HFLAG_ABUSE_SET_DMA_MODE | \
135          IDE_HFLAG_NO_AUTODMA)
136
137 static const struct ide_port_info hpt34x_chipsets[] __devinitdata = {
138         { /* 0 */
139                 .name           = "HPT343",
140                 .init_chipset   = init_chipset_hpt34x,
141                 .init_hwif      = init_hwif_hpt34x,
142                 .extra          = 16,
143                 .host_flags     = IDE_HFLAGS_HPT34X,
144                 .pio_mask       = ATA_PIO5,
145         },
146         { /* 1 */
147                 .name           = "HPT345",
148                 .init_chipset   = init_chipset_hpt34x,
149                 .init_hwif      = init_hwif_hpt34x,
150                 .extra          = 16,
151                 .host_flags     = IDE_HFLAGS_HPT34X | IDE_HFLAG_OFF_BOARD,
152                 .pio_mask       = ATA_PIO5,
153 #ifdef CONFIG_HPT34X_AUTODMA
154                 .swdma_mask     = ATA_SWDMA2,
155                 .mwdma_mask     = ATA_MWDMA2,
156                 .udma_mask      = ATA_UDMA2,
157 #endif
158         }
159 };
160
161 static int __devinit hpt34x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
162 {
163         const struct ide_port_info *d;
164         u16 pcicmd = 0;
165
166         pci_read_config_word(dev, PCI_COMMAND, &pcicmd);
167
168         d = &hpt34x_chipsets[(pcicmd & PCI_COMMAND_MEMORY) ? 1 : 0];
169
170         return ide_setup_pci_device(dev, d);
171 }
172
173 static const struct pci_device_id hpt34x_pci_tbl[] = {
174         { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT343), 0 },
175         { 0, },
176 };
177 MODULE_DEVICE_TABLE(pci, hpt34x_pci_tbl);
178
179 static struct pci_driver driver = {
180         .name           = "HPT34x_IDE",
181         .id_table       = hpt34x_pci_tbl,
182         .probe          = hpt34x_init_one,
183 };
184
185 static int __init hpt34x_ide_init(void)
186 {
187         return ide_pci_register_driver(&driver);
188 }
189
190 module_init(hpt34x_ide_init);
191
192 MODULE_AUTHOR("Andre Hedrick");
193 MODULE_DESCRIPTION("PCI driver module for Highpoint 34x IDE");
194 MODULE_LICENSE("GPL");