4 #include <linux/config.h>
6 #define PCILYNX_DRIVER_NAME "pcilynx"
7 #define PCILYNX_MAJOR 177
9 #define PCILYNX_MINOR_AUX_START 0
10 #define PCILYNX_MINOR_ROM_START 16
11 #define PCILYNX_MINOR_RAM_START 32
13 #define PCILYNX_MAX_REGISTER 0xfff
14 #define PCILYNX_MAX_MEMORY 0xffff
16 #define PCI_DEVICE_ID_TI_PCILYNX 0x8000
17 #define MAX_PCILYNX_CARDS 4
18 #define LOCALRAM_SIZE 4096
20 #define NUM_ISORCV_PCL 4
21 #define MAX_ISORCV_SIZE 2048
22 #define ISORCV_PER_PAGE (PAGE_SIZE / MAX_ISORCV_SIZE)
23 #define ISORCV_PAGES (NUM_ISORCV_PCL / ISORCV_PER_PAGE)
25 #define CHANNEL_LOCALBUS 0
26 #define CHANNEL_ASYNC_RCV 1
27 #define CHANNEL_ISO_RCV 2
28 #define CHANNEL_ASYNC_SEND 3
29 #define CHANNEL_ISO_SEND 4
31 #define PCILYNX_CONFIG_ROM_LENGTH 1024
36 int id
; /* sequential card number */
48 enum { clear
, have_intr
, have_aux_buf
, have_pcl_mem
,
49 have_1394_buffers
, have_iomappings
, is_host
} state
;
51 /* remapped memory spaces */
52 void __iomem
*registers
;
53 void __iomem
*local_rom
;
54 void __iomem
*local_ram
;
55 void __iomem
*aux_port
;
56 quadlet_t bus_info_block
[5];
58 #ifdef CONFIG_IEEE1394_PCILYNX_PORTS
59 atomic_t aux_intr_seen
;
60 wait_queue_head_t aux_intr_wait
;
63 dma_addr_t mem_dma_buffer_dma
;
64 struct semaphore mem_dma_mutex
;
65 wait_queue_head_t mem_dma_intr_wait
;
69 * use local RAM of LOCALRAM_SIZE bytes for PCLs, which allows for
70 * LOCALRAM_SIZE * 8 PCLs (each sized 128 bytes);
71 * the following is an allocation bitmap
73 u8 pcl_bmap
[LOCALRAM_SIZE
/ 1024];
75 #ifndef CONFIG_IEEE1394_PCILYNX_LOCALRAM
76 /* point to PCLs memory area if needed */
78 dma_addr_t pcl_mem_dma
;
81 /* PCLs for local mem / aux transfers */
84 /* IEEE-1394 part follows */
85 struct hpsb_host
*host
;
91 spinlock_t phy_reg_lock
;
93 pcl_t rcv_pcl_start
, rcv_pcl
;
95 dma_addr_t rcv_page_dma
;
98 struct lynx_send_data
{
100 struct list_head queue
;
101 struct list_head pcl_queue
; /* this queue contains at most one packet */
102 spinlock_t queue_lock
;
103 dma_addr_t header_dma
, data_dma
;
108 pcl_t pcl
[NUM_ISORCV_PCL
];
109 u32 stat
[NUM_ISORCV_PCL
];
110 void *page
[ISORCV_PAGES
];
111 dma_addr_t page_dma
[ISORCV_PAGES
];
114 int next
, last
, used
, running
;
115 struct tasklet_struct tq
;
119 u32 i2c_driven_state
; /* the state we currently drive the Serial EEPROM Control register */
122 /* the per-file data structure for mem space access */
124 struct ti_lynx
*lynx
;
126 atomic_t aux_intr_last_seen
;
127 /* enum values are the same as LBUS_ADDR_SEL_* values below */
128 enum { rom
= 0x10000, aux
= 0x20000, ram
= 0 } type
;
134 * Register read and write helper functions.
136 static inline void reg_write(const struct ti_lynx
*lynx
, int offset
, u32 data
)
138 writel(data
, lynx
->registers
+ offset
);
141 static inline u32
reg_read(const struct ti_lynx
*lynx
, int offset
)
143 return readl(lynx
->registers
+ offset
);
146 static inline void reg_set_bits(const struct ti_lynx
*lynx
, int offset
,
149 reg_write(lynx
, offset
, (reg_read(lynx
, offset
) | mask
));
152 static inline void reg_clear_bits(const struct ti_lynx
*lynx
, int offset
,
155 reg_write(lynx
, offset
, (reg_read(lynx
, offset
) & ~mask
));
160 /* chip register definitions follow */
162 #define PCI_LATENCY_CACHELINE 0x0c
164 #define MISC_CONTROL 0x40
165 #define MISC_CONTROL_SWRESET (1<<0)
167 #define SERIAL_EEPROM_CONTROL 0x44
169 #define PCI_INT_STATUS 0x48
170 #define PCI_INT_ENABLE 0x4c
171 /* status and enable have identical bit numbers */
172 #define PCI_INT_INT_PEND (1<<31)
173 #define PCI_INT_FORCED_INT (1<<30)
174 #define PCI_INT_SLV_ADR_PERR (1<<28)
175 #define PCI_INT_SLV_DAT_PERR (1<<27)
176 #define PCI_INT_MST_DAT_PERR (1<<26)
177 #define PCI_INT_MST_DEV_TIMEOUT (1<<25)
178 #define PCI_INT_INTERNAL_SLV_TIMEOUT (1<<23)
179 #define PCI_INT_AUX_TIMEOUT (1<<18)
180 #define PCI_INT_AUX_INT (1<<17)
181 #define PCI_INT_1394 (1<<16)
182 #define PCI_INT_DMA4_PCL (1<<9)
183 #define PCI_INT_DMA4_HLT (1<<8)
184 #define PCI_INT_DMA3_PCL (1<<7)
185 #define PCI_INT_DMA3_HLT (1<<6)
186 #define PCI_INT_DMA2_PCL (1<<5)
187 #define PCI_INT_DMA2_HLT (1<<4)
188 #define PCI_INT_DMA1_PCL (1<<3)
189 #define PCI_INT_DMA1_HLT (1<<2)
190 #define PCI_INT_DMA0_PCL (1<<1)
191 #define PCI_INT_DMA0_HLT (1<<0)
192 /* all DMA interrupts combined: */
193 #define PCI_INT_DMA_ALL 0x3ff
195 #define PCI_INT_DMA_HLT(chan) (1 << (chan * 2))
196 #define PCI_INT_DMA_PCL(chan) (1 << (chan * 2 + 1))
198 #define LBUS_ADDR 0xb4
199 #define LBUS_ADDR_SEL_RAM (0x0<<16)
200 #define LBUS_ADDR_SEL_ROM (0x1<<16)
201 #define LBUS_ADDR_SEL_AUX (0x2<<16)
202 #define LBUS_ADDR_SEL_ZV (0x3<<16)
204 #define GPIO_CTRL_A 0xb8
205 #define GPIO_CTRL_B 0xbc
206 #define GPIO_DATA_BASE 0xc0
208 #define DMA_BREG(base, chan) (base + chan * 0x20)
209 #define DMA_SREG(base, chan) (base + chan * 0x10)
211 #define DMA0_PREV_PCL 0x100
212 #define DMA1_PREV_PCL 0x120
213 #define DMA2_PREV_PCL 0x140
214 #define DMA3_PREV_PCL 0x160
215 #define DMA4_PREV_PCL 0x180
216 #define DMA_PREV_PCL(chan) (DMA_BREG(DMA0_PREV_PCL, chan))
218 #define DMA0_CURRENT_PCL 0x104
219 #define DMA1_CURRENT_PCL 0x124
220 #define DMA2_CURRENT_PCL 0x144
221 #define DMA3_CURRENT_PCL 0x164
222 #define DMA4_CURRENT_PCL 0x184
223 #define DMA_CURRENT_PCL(chan) (DMA_BREG(DMA0_CURRENT_PCL, chan))
225 #define DMA0_CHAN_STAT 0x10c
226 #define DMA1_CHAN_STAT 0x12c
227 #define DMA2_CHAN_STAT 0x14c
228 #define DMA3_CHAN_STAT 0x16c
229 #define DMA4_CHAN_STAT 0x18c
230 #define DMA_CHAN_STAT(chan) (DMA_BREG(DMA0_CHAN_STAT, chan))
231 /* CHAN_STATUS registers share bits */
232 #define DMA_CHAN_STAT_SELFID (1<<31)
233 #define DMA_CHAN_STAT_ISOPKT (1<<30)
234 #define DMA_CHAN_STAT_PCIERR (1<<29)
235 #define DMA_CHAN_STAT_PKTERR (1<<28)
236 #define DMA_CHAN_STAT_PKTCMPL (1<<27)
237 #define DMA_CHAN_STAT_SPECIALACK (1<<14)
240 #define DMA0_CHAN_CTRL 0x110
241 #define DMA1_CHAN_CTRL 0x130
242 #define DMA2_CHAN_CTRL 0x150
243 #define DMA3_CHAN_CTRL 0x170
244 #define DMA4_CHAN_CTRL 0x190
245 #define DMA_CHAN_CTRL(chan) (DMA_BREG(DMA0_CHAN_CTRL, chan))
246 /* CHAN_CTRL registers share bits */
247 #define DMA_CHAN_CTRL_ENABLE (1<<31)
248 #define DMA_CHAN_CTRL_BUSY (1<<30)
249 #define DMA_CHAN_CTRL_LINK (1<<29)
251 #define DMA0_READY 0x114
252 #define DMA1_READY 0x134
253 #define DMA2_READY 0x154
254 #define DMA3_READY 0x174
255 #define DMA4_READY 0x194
256 #define DMA_READY(chan) (DMA_BREG(DMA0_READY, chan))
258 #define DMA_GLOBAL_REGISTER 0x908
260 #define FIFO_SIZES 0xa00
262 #define FIFO_CONTROL 0xa10
263 #define FIFO_CONTROL_GRF_FLUSH (1<<4)
264 #define FIFO_CONTROL_ITF_FLUSH (1<<3)
265 #define FIFO_CONTROL_ATF_FLUSH (1<<2)
267 #define FIFO_XMIT_THRESHOLD 0xa14
269 #define DMA0_WORD0_CMP_VALUE 0xb00
270 #define DMA1_WORD0_CMP_VALUE 0xb10
271 #define DMA2_WORD0_CMP_VALUE 0xb20
272 #define DMA3_WORD0_CMP_VALUE 0xb30
273 #define DMA4_WORD0_CMP_VALUE 0xb40
274 #define DMA_WORD0_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD0_CMP_VALUE, chan))
276 #define DMA0_WORD0_CMP_ENABLE 0xb04
277 #define DMA1_WORD0_CMP_ENABLE 0xb14
278 #define DMA2_WORD0_CMP_ENABLE 0xb24
279 #define DMA3_WORD0_CMP_ENABLE 0xb34
280 #define DMA4_WORD0_CMP_ENABLE 0xb44
281 #define DMA_WORD0_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD0_CMP_ENABLE,chan))
283 #define DMA0_WORD1_CMP_VALUE 0xb08
284 #define DMA1_WORD1_CMP_VALUE 0xb18
285 #define DMA2_WORD1_CMP_VALUE 0xb28
286 #define DMA3_WORD1_CMP_VALUE 0xb38
287 #define DMA4_WORD1_CMP_VALUE 0xb48
288 #define DMA_WORD1_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD1_CMP_VALUE, chan))
290 #define DMA0_WORD1_CMP_ENABLE 0xb0c
291 #define DMA1_WORD1_CMP_ENABLE 0xb1c
292 #define DMA2_WORD1_CMP_ENABLE 0xb2c
293 #define DMA3_WORD1_CMP_ENABLE 0xb3c
294 #define DMA4_WORD1_CMP_ENABLE 0xb4c
295 #define DMA_WORD1_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD1_CMP_ENABLE,chan))
296 /* word 1 compare enable flags */
297 #define DMA_WORD1_CMP_MATCH_OTHERBUS (1<<15)
298 #define DMA_WORD1_CMP_MATCH_BROADCAST (1<<14)
299 #define DMA_WORD1_CMP_MATCH_BUS_BCAST (1<<13)
300 #define DMA_WORD1_CMP_MATCH_LOCAL_NODE (1<<12)
301 #define DMA_WORD1_CMP_MATCH_EXACT (1<<11)
302 #define DMA_WORD1_CMP_ENABLE_SELF_ID (1<<10)
303 #define DMA_WORD1_CMP_ENABLE_MASTER (1<<8)
305 #define LINK_ID 0xf00
306 #define LINK_ID_BUS(id) (id<<22)
307 #define LINK_ID_NODE(id) (id<<16)
309 #define LINK_CONTROL 0xf04
310 #define LINK_CONTROL_BUSY (1<<29)
311 #define LINK_CONTROL_TX_ISO_EN (1<<26)
312 #define LINK_CONTROL_RX_ISO_EN (1<<25)
313 #define LINK_CONTROL_TX_ASYNC_EN (1<<24)
314 #define LINK_CONTROL_RX_ASYNC_EN (1<<23)
315 #define LINK_CONTROL_RESET_TX (1<<21)
316 #define LINK_CONTROL_RESET_RX (1<<20)
317 #define LINK_CONTROL_CYCMASTER (1<<11)
318 #define LINK_CONTROL_CYCSOURCE (1<<10)
319 #define LINK_CONTROL_CYCTIMEREN (1<<9)
320 #define LINK_CONTROL_RCV_CMP_VALID (1<<7)
321 #define LINK_CONTROL_SNOOP_ENABLE (1<<6)
323 #define CYCLE_TIMER 0xf08
325 #define LINK_PHY 0xf0c
326 #define LINK_PHY_READ (1<<31)
327 #define LINK_PHY_WRITE (1<<30)
328 #define LINK_PHY_ADDR(addr) (addr<<24)
329 #define LINK_PHY_WDATA(data) (data<<16)
330 #define LINK_PHY_RADDR(addr) (addr<<8)
333 #define LINK_INT_STATUS 0xf14
334 #define LINK_INT_ENABLE 0xf18
335 /* status and enable have identical bit numbers */
336 #define LINK_INT_LINK_INT (1<<31)
337 #define LINK_INT_PHY_TIMEOUT (1<<30)
338 #define LINK_INT_PHY_REG_RCVD (1<<29)
339 #define LINK_INT_PHY_BUSRESET (1<<28)
340 #define LINK_INT_TX_RDY (1<<26)
341 #define LINK_INT_RX_DATA_RDY (1<<25)
342 #define LINK_INT_ISO_STUCK (1<<20)
343 #define LINK_INT_ASYNC_STUCK (1<<19)
344 #define LINK_INT_SENT_REJECT (1<<17)
345 #define LINK_INT_HDR_ERR (1<<16)
346 #define LINK_INT_TX_INVALID_TC (1<<15)
347 #define LINK_INT_CYC_SECOND (1<<11)
348 #define LINK_INT_CYC_START (1<<10)
349 #define LINK_INT_CYC_DONE (1<<9)
350 #define LINK_INT_CYC_PENDING (1<<8)
351 #define LINK_INT_CYC_LOST (1<<7)
352 #define LINK_INT_CYC_ARB_FAILED (1<<6)
353 #define LINK_INT_GRF_OVERFLOW (1<<5)
354 #define LINK_INT_ITF_UNDERFLOW (1<<4)
355 #define LINK_INT_ATF_UNDERFLOW (1<<3)
356 #define LINK_INT_ISOARB_FAILED (1<<0)
359 #define PHY_VENDORID_TI 0x800028
360 #define PHY_PRODUCTID_TSB41LV03 0x000000
363 /* this is the physical layout of a PCL, its size is 128 bytes */
366 u32 async_error_next
;
369 u32 remaining_transfer_count
;
370 u32 next_data_buffer
;
374 } buffer
[13] __attribute__ ((packed
));
375 } __attribute__ ((packed
));
377 #include <linux/stddef.h>
378 #define pcloffs(MEMBER) (offsetof(struct ti_pcl, MEMBER))
381 #ifdef CONFIG_IEEE1394_PCILYNX_LOCALRAM
383 static inline void put_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
384 const struct ti_pcl
*pcl
)
387 u32
*in
= (u32
*)pcl
;
388 u32
*out
= (u32
*)(lynx
->local_ram
+ pclid
* sizeof(struct ti_pcl
));
390 for (i
= 0; i
< 32; i
++, out
++, in
++) {
395 static inline void get_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
399 u32
*out
= (u32
*)pcl
;
400 u32
*in
= (u32
*)(lynx
->local_ram
+ pclid
* sizeof(struct ti_pcl
));
402 for (i
= 0; i
< 32; i
++, out
++, in
++) {
407 static inline u32
pcl_bus(const struct ti_lynx
*lynx
, pcl_t pclid
)
409 return pci_resource_start(lynx
->dev
, 1) + pclid
* sizeof(struct ti_pcl
);
412 #else /* CONFIG_IEEE1394_PCILYNX_LOCALRAM */
414 static inline void put_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
415 const struct ti_pcl
*pcl
)
417 memcpy_le32((u32
*)(lynx
->pcl_mem
+ pclid
* sizeof(struct ti_pcl
)),
418 (u32
*)pcl
, sizeof(struct ti_pcl
));
421 static inline void get_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
424 memcpy_le32((u32
*)pcl
,
425 (u32
*)(lynx
->pcl_mem
+ pclid
* sizeof(struct ti_pcl
)),
426 sizeof(struct ti_pcl
));
429 static inline u32
pcl_bus(const struct ti_lynx
*lynx
, pcl_t pclid
)
431 return lynx
->pcl_mem_dma
+ pclid
* sizeof(struct ti_pcl
);
434 #endif /* CONFIG_IEEE1394_PCILYNX_LOCALRAM */
437 #if defined (CONFIG_IEEE1394_PCILYNX_LOCALRAM) || defined (__BIG_ENDIAN)
438 typedef struct ti_pcl pcltmp_t
;
440 static inline struct ti_pcl
*edit_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
443 get_pcl(lynx
, pclid
, tmp
);
447 static inline void commit_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
450 put_pcl(lynx
, pclid
, tmp
);
454 typedef int pcltmp_t
; /* just a dummy */
456 static inline struct ti_pcl
*edit_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
459 return lynx
->pcl_mem
+ pclid
* sizeof(struct ti_pcl
);
462 static inline void commit_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
,
469 static inline void run_sub_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
, int idx
,
472 reg_write(lynx
, DMA0_CURRENT_PCL
+ dmachan
* 0x20,
473 pcl_bus(lynx
, pclid
) + idx
* 4);
474 reg_write(lynx
, DMA0_CHAN_CTRL
+ dmachan
* 0x20,
475 DMA_CHAN_CTRL_ENABLE
| DMA_CHAN_CTRL_LINK
);
478 static inline void run_pcl(const struct ti_lynx
*lynx
, pcl_t pclid
, int dmachan
)
480 run_sub_pcl(lynx
, pclid
, 0, dmachan
);
483 #define PCL_NEXT_INVALID (1<<0)
485 /* transfer commands */
486 #define PCL_CMD_RCV (0x1<<24)
487 #define PCL_CMD_RCV_AND_UPDATE (0xa<<24)
488 #define PCL_CMD_XMT (0x2<<24)
489 #define PCL_CMD_UNFXMT (0xc<<24)
490 #define PCL_CMD_PCI_TO_LBUS (0x8<<24)
491 #define PCL_CMD_LBUS_TO_PCI (0x9<<24)
494 #define PCL_CMD_NOP (0x0<<24)
495 #define PCL_CMD_LOAD (0x3<<24)
496 #define PCL_CMD_STOREQ (0x4<<24)
497 #define PCL_CMD_STORED (0xb<<24)
498 #define PCL_CMD_STORE0 (0x5<<24)
499 #define PCL_CMD_STORE1 (0x6<<24)
500 #define PCL_CMD_COMPARE (0xe<<24)
501 #define PCL_CMD_SWAP_COMPARE (0xf<<24)
502 #define PCL_CMD_ADD (0xd<<24)
503 #define PCL_CMD_BRANCH (0x7<<24)
505 /* BRANCH condition codes */
506 #define PCL_COND_DMARDY_SET (0x1<<20)
507 #define PCL_COND_DMARDY_CLEAR (0x2<<20)
509 #define PCL_GEN_INTR (1<<19)
510 #define PCL_LAST_BUFF (1<<18)
511 #define PCL_LAST_CMD (PCL_LAST_BUFF)
512 #define PCL_WAITSTAT (1<<17)
513 #define PCL_BIGENDIAN (1<<16)
514 #define PCL_ISOMODE (1<<12)