1 #ifndef __PCILYNX_H__
2 #define __PCILYNX_H__
3
4
5 #define PCILYNX_DRIVER_NAME "pcilynx"
6 #define PCILYNX_MAJOR 177
7
8 #define PCILYNX_MINOR_AUX_START 0
9 #define PCILYNX_MINOR_ROM_START 16
10 #define PCILYNX_MINOR_RAM_START 32
11
12 #define PCILYNX_MAX_REGISTER 0xfff
13 #define PCILYNX_MAX_MEMORY 0xffff
14
15 #define PCI_DEVICE_ID_TI_PCILYNX 0x8000
16 #define MAX_PCILYNX_CARDS 4
17 #define LOCALRAM_SIZE 4096
18
19 #define NUM_ISORCV_PCL 4
20 #define MAX_ISORCV_SIZE 2048
21 #define ISORCV_PER_PAGE (PAGE_SIZE / MAX_ISORCV_SIZE)
22 #define ISORCV_PAGES (NUM_ISORCV_PCL / ISORCV_PER_PAGE)
23
24 #define CHANNEL_LOCALBUS 0
25 #define CHANNEL_ASYNC_RCV 1
26 #define CHANNEL_ISO_RCV 2
27 #define CHANNEL_ASYNC_SEND 3
28 #define CHANNEL_ISO_SEND 4
29
30 #define PCILYNX_CONFIG_ROM_LENGTH 1024
31
32 typedef int pcl_t;
33
34 struct ti_lynx {
35 int id; /* sequential card number */
36
37 spinlock_t lock;
38
39 struct pci_dev *dev;
40
41 struct {
42 unsigned reg_1394a:1;
43 u32 vendor;
44 u32 product;
45 } phyic;
46
47 enum { clear, have_intr, have_aux_buf, have_pcl_mem,
48 have_1394_buffers, have_iomappings, is_host } state;
49
50 /* remapped memory spaces */
51 void __iomem *registers;
52 void __iomem *local_rom;
53 void __iomem *local_ram;
54 void __iomem *aux_port;
55 __be32 bus_info_block[5];
56
57 /*
58 * use local RAM of LOCALRAM_SIZE bytes for PCLs, which allows for
59 * LOCALRAM_SIZE * 8 PCLs (each sized 128 bytes);
60 * the following is an allocation bitmap
61 */
62 u8 pcl_bmap[LOCALRAM_SIZE / 1024];
63
64 /* point to PCLs memory area if needed */
65 void *pcl_mem;
66 dma_addr_t pcl_mem_dma;
67
68 /* PCLs for local mem / aux transfers */
69 pcl_t dmem_pcl;
70
71 /* IEEE-1394 part follows */
72 struct hpsb_host *host;
73
74 int phyid, isroot;
75 int selfid_size;
76 int phy_reg0;
77
78 spinlock_t phy_reg_lock;
79
80 pcl_t rcv_pcl_start, rcv_pcl;
81 void *rcv_page;
82 dma_addr_t rcv_page_dma;
83 int rcv_active;
84
85 struct lynx_send_data {
86 pcl_t pcl_start, pcl;
87 struct list_head queue;
88 struct list_head pcl_queue; /* this queue contains at most one packet */
89 spinlock_t queue_lock;
90 dma_addr_t header_dma, data_dma;
91 int channel;
92 } async, iso_send;
93
94 struct {
95 pcl_t pcl[NUM_ISORCV_PCL];
96 u32 stat[NUM_ISORCV_PCL];
97 void *page[ISORCV_PAGES];
98 dma_addr_t page_dma[ISORCV_PAGES];
99 pcl_t pcl_start;
100 int chan_count;
101 int next, last, used, running;
102 struct tasklet_struct tq;
103 spinlock_t lock;
104 } iso_rcv;
105
106 u32 i2c_driven_state; /* the state we currently drive the Serial EEPROM Control register */
107 };
108
109 /* the per-file data structure for mem space access */
110 struct memdata {
111 struct ti_lynx *lynx;
112 int cid;
113 atomic_t aux_intr_last_seen;
114 /* enum values are the same as LBUS_ADDR_SEL_* values below */
115 enum { rom = 0x10000, aux = 0x20000, ram = 0 } type;
116 };
117
118
119
120 /*
121 * Register read and write helper functions.
122 */
reg_write(const struct ti_lynx * lynx,int offset,u32 data)123 static inline void reg_write(const struct ti_lynx *lynx, int offset, u32 data)
124 {
125 writel(data, lynx->registers + offset);
126 }
127
reg_read(const struct ti_lynx * lynx,int offset)128 static inline u32 reg_read(const struct ti_lynx *lynx, int offset)
129 {
130 return readl(lynx->registers + offset);
131 }
132
reg_set_bits(const struct ti_lynx * lynx,int offset,u32 mask)133 static inline void reg_set_bits(const struct ti_lynx *lynx, int offset,
134 u32 mask)
135 {
136 reg_write(lynx, offset, (reg_read(lynx, offset) | mask));
137 }
138
reg_clear_bits(const struct ti_lynx * lynx,int offset,u32 mask)139 static inline void reg_clear_bits(const struct ti_lynx *lynx, int offset,
140 u32 mask)
141 {
142 reg_write(lynx, offset, (reg_read(lynx, offset) & ~mask));
143 }
144
145
146
147 /* chip register definitions follow */
148
149 #define PCI_LATENCY_CACHELINE 0x0c
150
151 #define MISC_CONTROL 0x40
152 #define MISC_CONTROL_SWRESET (1<<0)
153
154 #define SERIAL_EEPROM_CONTROL 0x44
155
156 #define PCI_INT_STATUS 0x48
157 #define PCI_INT_ENABLE 0x4c
158 /* status and enable have identical bit numbers */
159 #define PCI_INT_INT_PEND (1<<31)
160 #define PCI_INT_FORCED_INT (1<<30)
161 #define PCI_INT_SLV_ADR_PERR (1<<28)
162 #define PCI_INT_SLV_DAT_PERR (1<<27)
163 #define PCI_INT_MST_DAT_PERR (1<<26)
164 #define PCI_INT_MST_DEV_TIMEOUT (1<<25)
165 #define PCI_INT_INTERNAL_SLV_TIMEOUT (1<<23)
166 #define PCI_INT_AUX_TIMEOUT (1<<18)
167 #define PCI_INT_AUX_INT (1<<17)
168 #define PCI_INT_1394 (1<<16)
169 #define PCI_INT_DMA4_PCL (1<<9)
170 #define PCI_INT_DMA4_HLT (1<<8)
171 #define PCI_INT_DMA3_PCL (1<<7)
172 #define PCI_INT_DMA3_HLT (1<<6)
173 #define PCI_INT_DMA2_PCL (1<<5)
174 #define PCI_INT_DMA2_HLT (1<<4)
175 #define PCI_INT_DMA1_PCL (1<<3)
176 #define PCI_INT_DMA1_HLT (1<<2)
177 #define PCI_INT_DMA0_PCL (1<<1)
178 #define PCI_INT_DMA0_HLT (1<<0)
179 /* all DMA interrupts combined: */
180 #define PCI_INT_DMA_ALL 0x3ff
181
182 #define PCI_INT_DMA_HLT(chan) (1 << (chan * 2))
183 #define PCI_INT_DMA_PCL(chan) (1 << (chan * 2 + 1))
184
185 #define LBUS_ADDR 0xb4
186 #define LBUS_ADDR_SEL_RAM (0x0<<16)
187 #define LBUS_ADDR_SEL_ROM (0x1<<16)
188 #define LBUS_ADDR_SEL_AUX (0x2<<16)
189 #define LBUS_ADDR_SEL_ZV (0x3<<16)
190
191 #define GPIO_CTRL_A 0xb8
192 #define GPIO_CTRL_B 0xbc
193 #define GPIO_DATA_BASE 0xc0
194
195 #define DMA_BREG(base, chan) (base + chan * 0x20)
196 #define DMA_SREG(base, chan) (base + chan * 0x10)
197
198 #define DMA0_PREV_PCL 0x100
199 #define DMA1_PREV_PCL 0x120
200 #define DMA2_PREV_PCL 0x140
201 #define DMA3_PREV_PCL 0x160
202 #define DMA4_PREV_PCL 0x180
203 #define DMA_PREV_PCL(chan) (DMA_BREG(DMA0_PREV_PCL, chan))
204
205 #define DMA0_CURRENT_PCL 0x104
206 #define DMA1_CURRENT_PCL 0x124
207 #define DMA2_CURRENT_PCL 0x144
208 #define DMA3_CURRENT_PCL 0x164
209 #define DMA4_CURRENT_PCL 0x184
210 #define DMA_CURRENT_PCL(chan) (DMA_BREG(DMA0_CURRENT_PCL, chan))
211
212 #define DMA0_CHAN_STAT 0x10c
213 #define DMA1_CHAN_STAT 0x12c
214 #define DMA2_CHAN_STAT 0x14c
215 #define DMA3_CHAN_STAT 0x16c
216 #define DMA4_CHAN_STAT 0x18c
217 #define DMA_CHAN_STAT(chan) (DMA_BREG(DMA0_CHAN_STAT, chan))
218 /* CHAN_STATUS registers share bits */
219 #define DMA_CHAN_STAT_SELFID (1<<31)
220 #define DMA_CHAN_STAT_ISOPKT (1<<30)
221 #define DMA_CHAN_STAT_PCIERR (1<<29)
222 #define DMA_CHAN_STAT_PKTERR (1<<28)
223 #define DMA_CHAN_STAT_PKTCMPL (1<<27)
224 #define DMA_CHAN_STAT_SPECIALACK (1<<14)
225
226
227 #define DMA0_CHAN_CTRL 0x110
228 #define DMA1_CHAN_CTRL 0x130
229 #define DMA2_CHAN_CTRL 0x150
230 #define DMA3_CHAN_CTRL 0x170
231 #define DMA4_CHAN_CTRL 0x190
232 #define DMA_CHAN_CTRL(chan) (DMA_BREG(DMA0_CHAN_CTRL, chan))
233 /* CHAN_CTRL registers share bits */
234 #define DMA_CHAN_CTRL_ENABLE (1<<31)
235 #define DMA_CHAN_CTRL_BUSY (1<<30)
236 #define DMA_CHAN_CTRL_LINK (1<<29)
237
238 #define DMA0_READY 0x114
239 #define DMA1_READY 0x134
240 #define DMA2_READY 0x154
241 #define DMA3_READY 0x174
242 #define DMA4_READY 0x194
243 #define DMA_READY(chan) (DMA_BREG(DMA0_READY, chan))
244
245 #define DMA_GLOBAL_REGISTER 0x908
246
247 #define FIFO_SIZES 0xa00
248
249 #define FIFO_CONTROL 0xa10
250 #define FIFO_CONTROL_GRF_FLUSH (1<<4)
251 #define FIFO_CONTROL_ITF_FLUSH (1<<3)
252 #define FIFO_CONTROL_ATF_FLUSH (1<<2)
253
254 #define FIFO_XMIT_THRESHOLD 0xa14
255
256 #define DMA0_WORD0_CMP_VALUE 0xb00
257 #define DMA1_WORD0_CMP_VALUE 0xb10
258 #define DMA2_WORD0_CMP_VALUE 0xb20
259 #define DMA3_WORD0_CMP_VALUE 0xb30
260 #define DMA4_WORD0_CMP_VALUE 0xb40
261 #define DMA_WORD0_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD0_CMP_VALUE, chan))
262
263 #define DMA0_WORD0_CMP_ENABLE 0xb04
264 #define DMA1_WORD0_CMP_ENABLE 0xb14
265 #define DMA2_WORD0_CMP_ENABLE 0xb24
266 #define DMA3_WORD0_CMP_ENABLE 0xb34
267 #define DMA4_WORD0_CMP_ENABLE 0xb44
268 #define DMA_WORD0_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD0_CMP_ENABLE,chan))
269
270 #define DMA0_WORD1_CMP_VALUE 0xb08
271 #define DMA1_WORD1_CMP_VALUE 0xb18
272 #define DMA2_WORD1_CMP_VALUE 0xb28
273 #define DMA3_WORD1_CMP_VALUE 0xb38
274 #define DMA4_WORD1_CMP_VALUE 0xb48
275 #define DMA_WORD1_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD1_CMP_VALUE, chan))
276
277 #define DMA0_WORD1_CMP_ENABLE 0xb0c
278 #define DMA1_WORD1_CMP_ENABLE 0xb1c
279 #define DMA2_WORD1_CMP_ENABLE 0xb2c
280 #define DMA3_WORD1_CMP_ENABLE 0xb3c
281 #define DMA4_WORD1_CMP_ENABLE 0xb4c
282 #define DMA_WORD1_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD1_CMP_ENABLE,chan))
283 /* word 1 compare enable flags */
284 #define DMA_WORD1_CMP_MATCH_OTHERBUS (1<<15)
285 #define DMA_WORD1_CMP_MATCH_BROADCAST (1<<14)
286 #define DMA_WORD1_CMP_MATCH_BUS_BCAST (1<<13)
287 #define DMA_WORD1_CMP_MATCH_LOCAL_NODE (1<<12)
288 #define DMA_WORD1_CMP_MATCH_EXACT (1<<11)
289 #define DMA_WORD1_CMP_ENABLE_SELF_ID (1<<10)
290 #define DMA_WORD1_CMP_ENABLE_MASTER (1<<8)
291
292 #define LINK_ID 0xf00
293 #define LINK_ID_BUS(id) (id<<22)
294 #define LINK_ID_NODE(id) (id<<16)
295
296 #define LINK_CONTROL 0xf04
297 #define LINK_CONTROL_BUSY (1<<29)
298 #define LINK_CONTROL_TX_ISO_EN (1<<26)
299 #define LINK_CONTROL_RX_ISO_EN (1<<25)
300 #define LINK_CONTROL_TX_ASYNC_EN (1<<24)
301 #define LINK_CONTROL_RX_ASYNC_EN (1<<23)
302 #define LINK_CONTROL_RESET_TX (1<<21)
303 #define LINK_CONTROL_RESET_RX (1<<20)
304 #define LINK_CONTROL_CYCMASTER (1<<11)
305 #define LINK_CONTROL_CYCSOURCE (1<<10)
306 #define LINK_CONTROL_CYCTIMEREN (1<<9)
307 #define LINK_CONTROL_RCV_CMP_VALID (1<<7)
308 #define LINK_CONTROL_SNOOP_ENABLE (1<<6)
309
310 #define CYCLE_TIMER 0xf08
311
312 #define LINK_PHY 0xf0c
313 #define LINK_PHY_READ (1<<31)
314 #define LINK_PHY_WRITE (1<<30)
315 #define LINK_PHY_ADDR(addr) (addr<<24)
316 #define LINK_PHY_WDATA(data) (data<<16)
317 #define LINK_PHY_RADDR(addr) (addr<<8)
318
319
320 #define LINK_INT_STATUS 0xf14
321 #define LINK_INT_ENABLE 0xf18
322 /* status and enable have identical bit numbers */
323 #define LINK_INT_LINK_INT (1<<31)
324 #define LINK_INT_PHY_TIMEOUT (1<<30)
325 #define LINK_INT_PHY_REG_RCVD (1<<29)
326 #define LINK_INT_PHY_BUSRESET (1<<28)
327 #define LINK_INT_TX_RDY (1<<26)
328 #define LINK_INT_RX_DATA_RDY (1<<25)
329 #define LINK_INT_ISO_STUCK (1<<20)
330 #define LINK_INT_ASYNC_STUCK (1<<19)
331 #define LINK_INT_SENT_REJECT (1<<17)
332 #define LINK_INT_HDR_ERR (1<<16)
333 #define LINK_INT_TX_INVALID_TC (1<<15)
334 #define LINK_INT_CYC_SECOND (1<<11)
335 #define LINK_INT_CYC_START (1<<10)
336 #define LINK_INT_CYC_DONE (1<<9)
337 #define LINK_INT_CYC_PENDING (1<<8)
338 #define LINK_INT_CYC_LOST (1<<7)
339 #define LINK_INT_CYC_ARB_FAILED (1<<6)
340 #define LINK_INT_GRF_OVERFLOW (1<<5)
341 #define LINK_INT_ITF_UNDERFLOW (1<<4)
342 #define LINK_INT_ATF_UNDERFLOW (1<<3)
343 #define LINK_INT_ISOARB_FAILED (1<<0)
344
345 /* PHY specifics */
346 #define PHY_VENDORID_TI 0x800028
347 #define PHY_PRODUCTID_TSB41LV03 0x000000
348
349
350 /* this is the physical layout of a PCL, its size is 128 bytes */
351 struct ti_pcl {
352 u32 next;
353 u32 async_error_next;
354 u32 user_data;
355 u32 pcl_status;
356 u32 remaining_transfer_count;
357 u32 next_data_buffer;
358 struct {
359 u32 control;
360 u32 pointer;
361 } buffer[13] __attribute__ ((packed));
362 } __attribute__ ((packed));
363
364 #include <linux/stddef.h>
365 #define pcloffs(MEMBER) (offsetof(struct ti_pcl, MEMBER))
366
367
put_pcl(const struct ti_lynx * lynx,pcl_t pclid,const struct ti_pcl * pcl)368 static inline void put_pcl(const struct ti_lynx *lynx, pcl_t pclid,
369 const struct ti_pcl *pcl)
370 {
371 memcpy_le32((u32 *)(lynx->pcl_mem + pclid * sizeof(struct ti_pcl)),
372 (u32 *)pcl, sizeof(struct ti_pcl));
373 }
374
get_pcl(const struct ti_lynx * lynx,pcl_t pclid,struct ti_pcl * pcl)375 static inline void get_pcl(const struct ti_lynx *lynx, pcl_t pclid,
376 struct ti_pcl *pcl)
377 {
378 memcpy_le32((u32 *)pcl,
379 (u32 *)(lynx->pcl_mem + pclid * sizeof(struct ti_pcl)),
380 sizeof(struct ti_pcl));
381 }
382
pcl_bus(const struct ti_lynx * lynx,pcl_t pclid)383 static inline u32 pcl_bus(const struct ti_lynx *lynx, pcl_t pclid)
384 {
385 return lynx->pcl_mem_dma + pclid * sizeof(struct ti_pcl);
386 }
387
388
389 #if defined (__BIG_ENDIAN)
390 typedef struct ti_pcl pcltmp_t;
391
edit_pcl(const struct ti_lynx * lynx,pcl_t pclid,pcltmp_t * tmp)392 static inline struct ti_pcl *edit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
393 pcltmp_t *tmp)
394 {
395 get_pcl(lynx, pclid, tmp);
396 return tmp;
397 }
398
commit_pcl(const struct ti_lynx * lynx,pcl_t pclid,pcltmp_t * tmp)399 static inline void commit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
400 pcltmp_t *tmp)
401 {
402 put_pcl(lynx, pclid, tmp);
403 }
404
405 #else
406 typedef int pcltmp_t; /* just a dummy */
407
edit_pcl(const struct ti_lynx * lynx,pcl_t pclid,pcltmp_t * tmp)408 static inline struct ti_pcl *edit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
409 pcltmp_t *tmp)
410 {
411 return lynx->pcl_mem + pclid * sizeof(struct ti_pcl);
412 }
413
commit_pcl(const struct ti_lynx * lynx,pcl_t pclid,pcltmp_t * tmp)414 static inline void commit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
415 pcltmp_t *tmp)
416 {
417 }
418 #endif
419
420
run_sub_pcl(const struct ti_lynx * lynx,pcl_t pclid,int idx,int dmachan)421 static inline void run_sub_pcl(const struct ti_lynx *lynx, pcl_t pclid, int idx,
422 int dmachan)
423 {
424 reg_write(lynx, DMA0_CURRENT_PCL + dmachan * 0x20,
425 pcl_bus(lynx, pclid) + idx * 4);
426 reg_write(lynx, DMA0_CHAN_CTRL + dmachan * 0x20,
427 DMA_CHAN_CTRL_ENABLE | DMA_CHAN_CTRL_LINK);
428 }
429
run_pcl(const struct ti_lynx * lynx,pcl_t pclid,int dmachan)430 static inline void run_pcl(const struct ti_lynx *lynx, pcl_t pclid, int dmachan)
431 {
432 run_sub_pcl(lynx, pclid, 0, dmachan);
433 }
434
435 #define PCL_NEXT_INVALID (1<<0)
436
437 /* transfer commands */
438 #define PCL_CMD_RCV (0x1<<24)
439 #define PCL_CMD_RCV_AND_UPDATE (0xa<<24)
440 #define PCL_CMD_XMT (0x2<<24)
441 #define PCL_CMD_UNFXMT (0xc<<24)
442 #define PCL_CMD_PCI_TO_LBUS (0x8<<24)
443 #define PCL_CMD_LBUS_TO_PCI (0x9<<24)
444
445 /* aux commands */
446 #define PCL_CMD_NOP (0x0<<24)
447 #define PCL_CMD_LOAD (0x3<<24)
448 #define PCL_CMD_STOREQ (0x4<<24)
449 #define PCL_CMD_STORED (0xb<<24)
450 #define PCL_CMD_STORE0 (0x5<<24)
451 #define PCL_CMD_STORE1 (0x6<<24)
452 #define PCL_CMD_COMPARE (0xe<<24)
453 #define PCL_CMD_SWAP_COMPARE (0xf<<24)
454 #define PCL_CMD_ADD (0xd<<24)
455 #define PCL_CMD_BRANCH (0x7<<24)
456
457 /* BRANCH condition codes */
458 #define PCL_COND_DMARDY_SET (0x1<<20)
459 #define PCL_COND_DMARDY_CLEAR (0x2<<20)
460
461 #define PCL_GEN_INTR (1<<19)
462 #define PCL_LAST_BUFF (1<<18)
463 #define PCL_LAST_CMD (PCL_LAST_BUFF)
464 #define PCL_WAITSTAT (1<<17)
465 #define PCL_BIGENDIAN (1<<16)
466 #define PCL_ISOMODE (1<<12)
467
468 #endif
469