2 Modified by umesh on 16th may 2001
3 Modified by sarath on 22nd may 2001
7 comedi/drivers/amcc_s5933_v_58.h
9 Stuff for AMCC S5933 PCI Controller
11 Author: Michal Dobes <majkl@tesnet.cz>
13 Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver
14 made by Andrea Cisternino <acister@pcape1.pi.infn.it>
15 and as result of espionage from MITE code made by David A. Schleef.
16 Thanks to AMCC for their on-line documentation and bus master DMA
20 #ifndef _AMCC_S5933_H_
21 #define _AMCC_S5933_H_
23 #include <linux/pci.h>
24 #include "../../comedidev.h"
26 #ifdef PCI_SUPPORT_VER1
27 #error Sorry, no support for 2.1.55 and older! :-((((
30 /***********Added by sarath for compatibility with APCI3120
32 *************************/
34 #define FIFO_ADVANCE_ON_BYTE_2 0x20000000 /* written on base0 */
36 #define AMWEN_ENABLE 0x02 /* added for step 6 dma written on base2 */
37 #define A2P_FIFO_WRITE_ENABLE 0x01
39 #define AGCSTS_TC_ENABLE 0x10000000 /* Added for transfer count enable bit */
41 /* ADDON RELATED ADDITIONS */
43 #define APCI3120_ENABLE_TRANSFER_ADD_ON_LOW 0x00
44 #define APCI3120_ENABLE_TRANSFER_ADD_ON_HIGH 0x1200
45 #define APCI3120_A2P_FIFO_MANAGEMENT 0x04000400L
46 #define APCI3120_AMWEN_ENABLE 0x02
47 #define APCI3120_A2P_FIFO_WRITE_ENABLE 0x01
48 #define APCI3120_FIFO_ADVANCE_ON_BYTE_2 0x20000000L
49 #define APCI3120_ENABLE_WRITE_TC_INT 0x00004000L
50 #define APCI3120_CLEAR_WRITE_TC_INT 0x00040000L
51 #define APCI3120_DISABLE_AMWEN_AND_A2P_FIFO_WRITE 0x0
52 #define APCI3120_DISABLE_BUS_MASTER_ADD_ON 0x0
53 #define APCI3120_DISABLE_BUS_MASTER_PCI 0x0
55 /* ADD_ON ::: this needed since apci supports 16 bit interface to add on */
56 #define APCI3120_ADD_ON_AGCSTS_LOW 0x3C
57 #define APCI3120_ADD_ON_AGCSTS_HIGH APCI3120_ADD_ON_AGCSTS_LOW + 2
58 #define APCI3120_ADD_ON_MWAR_LOW 0x24
59 #define APCI3120_ADD_ON_MWAR_HIGH APCI3120_ADD_ON_MWAR_LOW + 2
60 #define APCI3120_ADD_ON_MWTC_LOW 0x058
61 #define APCI3120_ADD_ON_MWTC_HIGH APCI3120_ADD_ON_MWTC_LOW + 2
64 #define APCI3120_AMCC_OP_MCSR 0x3C
65 #define APCI3120_AMCC_OP_REG_INTCSR 0x38
67 /*******from here all upward definitions are added by sarath */
69 /****************************************************************************/
70 /* AMCC Operation Register Offsets - PCI */
71 /****************************************************************************/
73 #define AMCC_OP_REG_OMB1 0x00
74 #define AMCC_OP_REG_OMB2 0x04
75 #define AMCC_OP_REG_OMB3 0x08
76 #define AMCC_OP_REG_OMB4 0x0c
77 #define AMCC_OP_REG_IMB1 0x10
78 #define AMCC_OP_REG_IMB2 0x14
79 #define AMCC_OP_REG_IMB3 0x18
80 #define AMCC_OP_REG_IMB4 0x1c
81 #define AMCC_OP_REG_FIFO 0x20
82 #define AMCC_OP_REG_MWAR 0x24
83 #define AMCC_OP_REG_MWTC 0x28
84 #define AMCC_OP_REG_MRAR 0x2c
85 #define AMCC_OP_REG_MRTC 0x30
86 #define AMCC_OP_REG_MBEF 0x34
87 #define AMCC_OP_REG_INTCSR 0x38
88 #define AMCC_OP_REG_INTCSR_SRC (AMCC_OP_REG_INTCSR + 2) /* int source */
89 #define AMCC_OP_REG_INTCSR_FEC (AMCC_OP_REG_INTCSR + 3) /* FIFO ctrl */
90 #define AMCC_OP_REG_MCSR 0x3c
91 #define AMCC_OP_REG_MCSR_NVDATA (AMCC_OP_REG_MCSR + 2) /* Data in byte 2 */
92 #define AMCC_OP_REG_MCSR_NVCMD (AMCC_OP_REG_MCSR + 3) /* Command in byte 3 */
94 #define AMCC_FIFO_DEPTH_DWORD 8
95 #define AMCC_FIFO_DEPTH_BYTES (8 * sizeof (u32))
97 /****************************************************************************/
98 /* AMCC Operation Registers Size - PCI */
99 /****************************************************************************/
101 #define AMCC_OP_REG_SIZE 64 /* in bytes */
103 /****************************************************************************/
104 /* AMCC Operation Register Offsets - Add-on */
105 /****************************************************************************/
107 #define AMCC_OP_REG_AIMB1 0x00
108 #define AMCC_OP_REG_AIMB2 0x04
109 #define AMCC_OP_REG_AIMB3 0x08
110 #define AMCC_OP_REG_AIMB4 0x0c
111 #define AMCC_OP_REG_AOMB1 0x10
112 #define AMCC_OP_REG_AOMB2 0x14
113 #define AMCC_OP_REG_AOMB3 0x18
114 #define AMCC_OP_REG_AOMB4 0x1c
115 #define AMCC_OP_REG_AFIFO 0x20
116 #define AMCC_OP_REG_AMWAR 0x24
117 #define AMCC_OP_REG_APTA 0x28
118 #define AMCC_OP_REG_APTD 0x2c
119 #define AMCC_OP_REG_AMRAR 0x30
120 #define AMCC_OP_REG_AMBEF 0x34
121 #define AMCC_OP_REG_AINT 0x38
122 #define AMCC_OP_REG_AGCSTS 0x3c
123 #define AMCC_OP_REG_AMWTC 0x58
124 #define AMCC_OP_REG_AMRTC 0x5c
126 /****************************************************************************/
127 /* AMCC - Add-on General Control/Status Register */
128 /****************************************************************************/
130 #define AGCSTS_CONTROL_MASK 0xfffff000
131 #define AGCSTS_NV_ACC_MASK 0xe0000000
132 #define AGCSTS_RESET_MASK 0x0e000000
133 #define AGCSTS_NV_DA_MASK 0x00ff0000
134 #define AGCSTS_BIST_MASK 0x0000f000
135 #define AGCSTS_STATUS_MASK 0x000000ff
136 #define AGCSTS_TCZERO_MASK 0x000000c0
137 #define AGCSTS_FIFO_ST_MASK 0x0000003f
139 #define AGCSTS_RESET_MBFLAGS 0x08000000
140 #define AGCSTS_RESET_P2A_FIFO 0x04000000
141 #define AGCSTS_RESET_A2P_FIFO 0x02000000
142 #define AGCSTS_RESET_FIFOS (AGCSTS_RESET_A2P_FIFO | AGCSTS_RESET_P2A_FIFO)
144 #define AGCSTS_A2P_TCOUNT 0x00000080
145 #define AGCSTS_P2A_TCOUNT 0x00000040
147 #define AGCSTS_FS_P2A_EMPTY 0x00000020
148 #define AGCSTS_FS_P2A_HALF 0x00000010
149 #define AGCSTS_FS_P2A_FULL 0x00000008
151 #define AGCSTS_FS_A2P_EMPTY 0x00000004
152 #define AGCSTS_FS_A2P_HALF 0x00000002
153 #define AGCSTS_FS_A2P_FULL 0x00000001
155 /****************************************************************************/
156 /* AMCC - Add-on Interrupt Control/Status Register */
157 /****************************************************************************/
159 #define AINT_INT_MASK 0x00ff0000
160 #define AINT_SEL_MASK 0x0000ffff
161 #define AINT_IS_ENSEL_MASK 0x00001f1f
163 #define AINT_INT_ASSERTED 0x00800000
164 #define AINT_BM_ERROR 0x00200000
165 #define AINT_BIST_INT 0x00100000
167 #define AINT_RT_COMPLETE 0x00080000
168 #define AINT_WT_COMPLETE 0x00040000
170 #define AINT_OUT_MB_INT 0x00020000
171 #define AINT_IN_MB_INT 0x00010000
173 #define AINT_READ_COMPL 0x00008000
174 #define AINT_WRITE_COMPL 0x00004000
176 #define AINT_OMB_ENABLE 0x00001000
177 #define AINT_OMB_SELECT 0x00000c00
178 #define AINT_OMB_BYTE 0x00000300
180 #define AINT_IMB_ENABLE 0x00000010
181 #define AINT_IMB_SELECT 0x0000000c
182 #define AINT_IMB_BYTE 0x00000003
184 /* Enable Bus Mastering */
185 #define EN_A2P_TRANSFERS 0x00000400
186 /* FIFO Flag Reset */
187 #define RESET_A2P_FLAGS 0x04000000L
188 /* FIFO Relative Priority */
189 #define A2P_HI_PRIORITY 0x00000100L
190 /* Identify Interrupt Sources */
191 #define ANY_S593X_INT 0x00800000L
192 #define READ_TC_INT 0x00080000L
193 #define WRITE_TC_INT 0x00040000L
194 #define IN_MB_INT 0x00020000L
195 #define MASTER_ABORT_INT 0x00100000L
196 #define TARGET_ABORT_INT 0x00200000L
197 #define BUS_MASTER_INT 0x00200000L
199 /****************************************************************************/
201 struct pcilst_struct {
202 struct pcilst_struct *next;
204 struct pci_dev *pcidev;
205 unsigned short vendor;
206 unsigned short device;
208 unsigned char pci_bus;
209 unsigned char pci_slot;
210 unsigned char pci_func;
211 unsigned int io_addr[5];
215 struct pcilst_struct *amcc_devices; /* ptr to root list of all amcc devices */
217 /****************************************************************************/
219 void v_pci_card_list_init(unsigned short pci_vendor, char display);
220 void v_pci_card_list_cleanup(unsigned short pci_vendor);
221 struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id,
224 int i_find_free_pci_card_by_position(unsigned short vendor_id,
225 unsigned short device_id,
226 unsigned short pci_bus,
227 unsigned short pci_slot,
228 struct pcilst_struct **card);
229 struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
230 unsigned short device_id,
231 unsigned short pci_bus,
232 unsigned short pci_slot);
234 int i_pci_card_alloc(struct pcilst_struct *amcc);
235 int i_pci_card_free(struct pcilst_struct *amcc);
236 void v_pci_card_list_display(void);
237 int i_pci_card_data(struct pcilst_struct *amcc,
238 unsigned char *pci_bus, unsigned char *pci_slot,
239 unsigned char *pci_func, unsigned short *io_addr,
240 unsigned short *irq, unsigned short *master);
242 /****************************************************************************/
244 /* build list of amcc cards in this system */
245 void v_pci_card_list_init(unsigned short pci_vendor, char display)
247 struct pci_dev *pcidev;
248 struct pcilst_struct *amcc, *last;
254 pci_for_each_dev(pcidev) {
255 if (pcidev->vendor == pci_vendor) {
256 amcc = kzalloc(sizeof(*amcc), GFP_KERNEL);
260 amcc->pcidev = pcidev;
268 amcc->vendor = pcidev->vendor;
269 amcc->device = pcidev->device;
271 amcc->master = pcidev->master; /* how get this information under 2.4 kernels? */
273 amcc->pci_bus = pcidev->bus->number;
274 amcc->pci_slot = PCI_SLOT(pcidev->devfn);
275 amcc->pci_func = PCI_FUNC(pcidev->devfn);
276 for (i = 0; i < 5; i++)
278 pcidev->resource[i].start & ~3UL;
279 amcc->irq = pcidev->irq;
284 v_pci_card_list_display();
287 /****************************************************************************/
288 /* free up list of amcc cards in this system */
289 void v_pci_card_list_cleanup(unsigned short pci_vendor)
291 struct pcilst_struct *amcc, *next;
293 for (amcc = amcc_devices; amcc; amcc = next) {
301 /****************************************************************************/
302 /* find first unused card with this device_id */
303 struct pcilst_struct *ptr_find_free_pci_card_by_device(unsigned short vendor_id,
304 unsigned short device_id)
306 struct pcilst_struct *amcc, *next;
308 for (amcc = amcc_devices; amcc; amcc = next) {
310 if ((!amcc->used) && (amcc->device == device_id)
311 && (amcc->vendor == vendor_id))
319 /****************************************************************************/
320 /* find card on requested position */
321 int i_find_free_pci_card_by_position(unsigned short vendor_id,
322 unsigned short device_id,
323 unsigned short pci_bus,
324 unsigned short pci_slot,
325 struct pcilst_struct **card)
327 struct pcilst_struct *amcc, *next;
330 for (amcc = amcc_devices; amcc; amcc = next) {
332 if ((amcc->vendor == vendor_id) && (amcc->device == device_id)
333 && (amcc->pci_bus == pci_bus)
334 && (amcc->pci_slot == pci_slot)) {
337 return 0; /* ok, card is found */
340 (" - \nCard on requested position is used b:s %d:%d!\n",
342 return 2; /* card exist but is used */
347 return 1; /* no card found */
350 /****************************************************************************/
351 /* mark card as used */
352 int i_pci_card_alloc(struct pcilst_struct *amcc)
363 /****************************************************************************/
364 /* mark card as free */
365 int i_pci_card_free(struct pcilst_struct *amcc)
376 /****************************************************************************/
377 /* display list of found cards */
378 void v_pci_card_list_display(void)
380 struct pcilst_struct *amcc, *next;
382 printk("List of pci cards\n");
383 printk("bus:slot:func vendor device master io_amcc io_daq irq used\n");
385 for (amcc = amcc_devices; amcc; amcc = next) {
388 ("%2d %2d %2d 0x%4x 0x%4x %3s 0x%4x 0x%4x %2d %2d\n",
389 amcc->pci_bus, amcc->pci_slot, amcc->pci_func,
390 amcc->vendor, amcc->device, amcc->master ? "yes" : "no",
391 amcc->io_addr[0], amcc->io_addr[2], amcc->irq, amcc->used);
396 /****************************************************************************/
397 /* return all card information for driver */
398 int i_pci_card_data(struct pcilst_struct *amcc,
399 unsigned char *pci_bus, unsigned char *pci_slot,
400 unsigned char *pci_func, unsigned short *io_addr,
401 unsigned short *irq, unsigned short *master)
407 *pci_bus = amcc->pci_bus;
408 *pci_slot = amcc->pci_slot;
409 *pci_func = amcc->pci_func;
410 for (i = 0; i < 5; i++)
411 io_addr[i] = amcc->io_addr[i];
413 *master = amcc->master;
417 /****************************************************************************/
418 /* select and alloc card */
419 struct pcilst_struct *ptr_select_and_alloc_pci_card(unsigned short vendor_id,
420 unsigned short device_id,
421 unsigned short pci_bus,
422 unsigned short pci_slot)
424 struct pcilst_struct *card;
426 if ((pci_bus < 1) & (pci_slot < 1)) { /* use autodetection */
427 card = ptr_find_free_pci_card_by_device(vendor_id, device_id);
429 printk(" - Unused card not found in system!\n");
433 switch (i_find_free_pci_card_by_position(vendor_id, device_id,
438 (" - Card not found on requested position b:s %d:%d!\n",
443 (" - Card on requested position is used b:s %d:%d!\n",
449 if (i_pci_card_alloc(card) != 0) {
450 printk(" - Can't allocate card!\n");