#ifndef __PCILYNX_H__
#define __PCILYNX_H__
#include <linux/config.h>
#define PCILYNX_DRIVER_NAME "pcilynx"
#define PCILYNX_MAJOR 177
#define PCILYNX_MINOR_AUX_START 0
#define PCILYNX_MINOR_ROM_START 16
#define PCILYNX_MINOR_RAM_START 32
#define PCILYNX_MAX_REGISTER 0xfff
#define PCILYNX_MAX_MEMORY 0xffff
#define PCI_DEVICE_ID_TI_PCILYNX 0x8000
#define MAX_PCILYNX_CARDS 4
#define LOCALRAM_SIZE 4096
#define NUM_ISORCV_PCL 4
#define MAX_ISORCV_SIZE 2048
#define ISORCV_PER_PAGE (PAGE_SIZE / MAX_ISORCV_SIZE)
#define ISORCV_PAGES (NUM_ISORCV_PCL / ISORCV_PER_PAGE)
#define CHANNEL_LOCALBUS 0
#define CHANNEL_ASYNC_RCV 1
#define CHANNEL_ISO_RCV 2
#define CHANNEL_ASYNC_SEND 3
#define CHANNEL_ISO_SEND 4
#define PCILYNX_CONFIG_ROM_LENGTH 1024
typedef int pcl_t;
struct ti_lynx {
int id; /* sequential card number */
spinlock_t lock;
struct pci_dev *dev;
struct {
unsigned reg_1394a:1;
u32 vendor;
u32 product;
} phyic;
enum { clear, have_intr, have_aux_buf, have_pcl_mem,
have_1394_buffers, have_iomappings, is_host } state;
/* remapped memory spaces */
void __iomem *registers;
void __iomem *local_rom;
void __iomem *local_ram;
void __iomem *aux_port;
quadlet_t bus_info_block[5];
#ifdef CONFIG_IEEE1394_PCILYNX_PORTS
atomic_t aux_intr_seen;
wait_queue_head_t aux_intr_wait;
void *mem_dma_buffer;
dma_addr_t mem_dma_buffer_dma;
struct semaphore mem_dma_mutex;
wait_queue_head_t mem_dma_intr_wait;
#endif
/*
* use local RAM of LOCALRAM_SIZE bytes for PCLs, which allows for
* LOCALRAM_SIZE * 8 PCLs (each sized 128 bytes);
* the following is an allocation bitmap
*/
u8 pcl_bmap[LOCALRAM_SIZE / 1024];
#ifndef CONFIG_IEEE1394_PCILYNX_LOCALRAM
/* point to PCLs memory area if needed */
void *pcl_mem;
dma_addr_t pcl_mem_dma;
#endif
/* PCLs for local mem / aux transfers */
pcl_t dmem_pcl;
/* IEEE-1394 part follows */
struct hpsb_host *host;
int phyid, isroot;
int selfid_size;
int phy_reg0;
spinlock_t phy_reg_lock;
pcl_t rcv_pcl_start, rcv_pcl;
void *rcv_page;
dma_addr_t rcv_page_dma;
int rcv_active;
struct lynx_send_data {
pcl_t pcl_start, pcl;
struct list_head queue;
struct list_head pcl_queue; /* this queue contains at most one packet */
spinlock_t queue_lock;
dma_addr_t header_dma, data_dma;
int channel;
} async, iso_send;
struct {
pcl_t pcl[NUM_ISORCV_PCL];
u32 stat[NUM_ISORCV_PCL];
void *page[ISORCV_PAGES];
dma_addr_t page_dma[ISORCV_PAGES];
pcl_t pcl_start;
int chan_count;
int next, last, used, running;
struct tasklet_struct tq;
spinlock_t lock;
} iso_rcv;
u32 i2c_driven_state; /* the state we currently drive the Serial EEPROM Control register */
};
/* the per-file data structure for mem space access */
struct memdata {
struct ti_lynx *lynx;
int cid;
atomic_t aux_intr_last_seen;
/* enum values are the same as LBUS_ADDR_SEL_* values below */
enum { rom = 0x10000, aux = 0x20000, ram = 0 } type;
};
/*
* Register read and write helper functions.
*/
static inline void reg_write(const struct ti_lynx *lynx, int offset, u32 data)
{
writel(data, lynx->registers + offset);
}
static inline u32 reg_read(const struct ti_lynx *lynx, int offset)
{
return readl(lynx->registers + offset);
}
static inline void reg_set_bits(const struct ti_lynx *lynx, int offset,
u32 mask)
{
reg_write(lynx, offset, (reg_read(lynx, offset) | mask));
}
static inline void reg_clear_bits(const struct ti_lynx *lynx, int offset,
u32 mask)
{
reg_write(lynx, offset, (reg_read(lynx, offset) & ~mask));
}
/* chip register definitions follow */
#define PCI_LATENCY_CACHELINE 0x0c
#define MISC_CONTROL 0x40
#define MISC_CONTROL_SWRESET (1<<0)
#define SERIAL_EEPROM_CONTROL 0x44
#define PCI_INT_STATUS 0x48
#define PCI_INT_ENABLE 0x4c
/* status and enable have identical bit numbers */
#define PCI_INT_INT_PEND (1<<31)
#define PCI_INT_FORCED_INT (1<<30)
#define PCI_INT_SLV_ADR_PERR (1<<28)
#define PCI_INT_SLV_DAT_PERR (1<<27)
#define PCI_INT_MST_DAT_PERR (1<<26)
#define PCI_INT_MST_DEV_TIMEOUT (1<<25)
#define PCI_INT_INTERNAL_SLV_TIMEOUT (1<<23)
#define PCI_INT_AUX_TIMEOUT (1<<18)
#define PCI_INT_AUX_INT (1<<17)
#define PCI_INT_1394 (1<<16)
#define PCI_INT_DMA4_PCL (1<<9)
#define PCI_INT_DMA4_HLT (1<<8)
#define PCI_INT_DMA3_PCL (1<<7)
#define PCI_INT_DMA3_HLT (1<<6)
#define PCI_INT_DMA2_PCL (1<<5)
#define PCI_INT_DMA2_HLT (1<<4)
#define PCI_INT_DMA1_PCL (1<<3)
#define PCI_INT_DMA1_HLT (1<<2)
#define PCI_INT_DMA0_PCL (1<<1)
#define PCI_INT_DMA0_HLT (1<<0)
/* all DMA interrupts combined: */
#define PCI_INT_DMA_ALL 0x3ff
#define PCI_INT_DMA_HLT(chan) (1 << (chan * 2))
#define PCI_INT_DMA_PCL(chan) (1 << (chan * 2 + 1))
#define LBUS_ADDR 0xb4
#define LBUS_ADDR_SEL_RAM (0x0<<16)
#define LBUS_ADDR_SEL_ROM (0x1<<16)
#define LBUS_ADDR_SEL_AUX (0x2<<16)
#define LBUS_ADDR_SEL_ZV (0x3<<16)
#define GPIO_CTRL_A 0xb8
#define GPIO_CTRL_B 0xbc
#define GPIO_DATA_BASE 0xc0
#define DMA_BREG(base, chan) (base + chan * 0x20)
#define DMA_SREG(base, chan) (base + chan * 0x10)
#define DMA0_PREV_PCL 0x100
#define DMA1_PREV_PCL 0x120
#define DMA2_PREV_PCL 0x140
#define DMA3_PREV_PCL 0x160
#define DMA4_PREV_PCL 0x180
#define DMA_PREV_PCL(chan) (DMA_BREG(DMA0_PREV_PCL, chan))
#define DMA0_CURRENT_PCL 0x104
#define DMA1_CURRENT_PCL 0x124
#define DMA2_CURRENT_PCL 0x144
#define DMA3_CURRENT_PCL 0x164
#define DMA4_CURRENT_PCL 0x184
#define DMA_CURRENT_PCL(chan) (DMA_BREG(DMA0_CURRENT_PCL, chan))
#define DMA0_CHAN_STAT 0x10c
#define DMA1_CHAN_STAT 0x12c
#define DMA2_CHAN_STAT 0x14c
#define DMA3_CHAN_STAT 0x16c
#define DMA4_CHAN_STAT 0x18c
#define DMA_CHAN_STAT(chan) (DMA_BREG(DMA0_CHAN_STAT, chan))
/* CHAN_STATUS registers share bits */
#define DMA_CHAN_STAT_SELFID (1<<31)
#define DMA_CHAN_STAT_ISOPKT (1<<30)
#define DMA_CHAN_STAT_PCIERR (1<<29)
#define DMA_CHAN_STAT_PKTERR (1<<28)
#define DMA_CHAN_STAT_PKTCMPL (1<<27)
#define DMA_CHAN_STAT_SPECIALACK (1<<14)
#define DMA0_CHAN_CTRL 0x110
#define DMA1_CHAN_CTRL 0x130
#define DMA2_CHAN_CTRL 0x150
#define DMA3_CHAN_CTRL 0x170
#define DMA4_CHAN_CTRL 0x190
#define DMA_CHAN_CTRL(chan) (DMA_BREG(DMA0_CHAN_CTRL, chan))
/* CHAN_CTRL registers share bits */
#define DMA_CHAN_CTRL_ENABLE (1<<31)
#define DMA_CHAN_CTRL_BUSY (1<<30)
#define DMA_CHAN_CTRL_LINK (1<<29)
#define DMA0_READY 0x114
#define DMA1_READY 0x134
#define DMA2_READY 0x154
#define DMA3_READY 0x174
#define DMA4_READY 0x194
#define DMA_READY(chan) (DMA_BREG(DMA0_READY, chan))
#define DMA_GLOBAL_REGISTER 0x908
#define FIFO_SIZES 0xa00
#define FIFO_CONTROL 0xa10
#define FIFO_CONTROL_GRF_FLUSH (1<<4)
#define FIFO_CONTROL_ITF_FLUSH (1<<3)
#define FIFO_CONTROL_ATF_FLUSH (1<<2)
#define FIFO_XMIT_THRESHOLD 0xa14
#define DMA0_WORD0_CMP_VALUE 0xb00
#define DMA1_WORD0_CMP_VALUE 0xb10
#define DMA2_WORD0_CMP_VALUE 0xb20
#define DMA3_WORD0_CMP_VALUE 0xb30
#define DMA4_WORD0_CMP_VALUE 0xb40
#define DMA_WORD0_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD0_CMP_VALUE, chan))
#define DMA0_WORD0_CMP_ENABLE 0xb04
#define DMA1_WORD0_CMP_ENABLE 0xb14
#define DMA2_WORD0_CMP_ENABLE 0xb24
#define DMA3_WORD0_CMP_ENABLE 0xb34
#define DMA4_WORD0_CMP_ENABLE 0xb44
#define DMA_WORD0_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD0_CMP_ENABLE,chan))
#define DMA0_WORD1_CMP_VALUE 0xb08
#define DMA1_WORD1_CMP_VALUE 0xb18
#define DMA2_WORD1_CMP_VALUE 0xb28
#define DMA3_WORD1_CMP_VALUE 0xb38
#define DMA4_WORD1_CMP_VALUE 0xb48
#define DMA_WORD1_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD1_CMP_VALUE, chan))
#define DMA0_WORD1_CMP_ENABLE 0xb0c
#define DMA1_WORD1_CMP_ENABLE 0xb1c
#define DMA2_WORD1_CMP_ENABLE 0xb2c
#define DMA3_WORD1_CMP_ENABLE 0xb3c
#define DMA4_WORD1_CMP_ENABLE 0xb4c
#define DMA_WORD1_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD1_CMP_ENABLE,chan))
/* word 1 compare enable flags */
#define DMA_WORD1_CMP_MATCH_OTHERBUS (1<<15)
#define DMA_WORD1_CMP_MATCH_BROADCAST (1<<14)
#define DMA_WORD1_CMP_MATCH_BUS_BCAST (1<<13)
#define DMA_WORD1_CMP_MATCH_LOCAL_NODE (1<<12)
#define DMA_WORD1_CMP_MATCH_EXACT (1<<11)
#define DMA_WORD1_CMP_ENABLE_SELF_ID (1<<10)
#define DMA_WORD1_CMP_ENABLE_MASTER (1<<8)
#define LINK_ID 0xf00
#define LINK_ID_BUS(id) (id<<22)
#define LINK_ID_NODE(id) (id<<16)
#define LINK_CONTROL 0xf04
#define LINK_CONTROL_BUSY (1<<29)
#define LINK_CONTROL_TX_ISO_EN (1<<26)
#define LINK_CONTROL_RX_ISO_EN (1<<25)
#define LINK_CONTROL_TX_ASYNC_EN (1<<24)
#define LINK_CONTROL_RX_ASYNC_EN (1<<23)
#define LINK_CONTROL_RESET_TX (1<<21)
#define LINK_CONTROL_RESET_RX (1<<20)
#define LINK_CONTROL_CYCMASTER (1<<11)
#define LINK_CONTROL_CYCSOURCE (1<<10)
#define LINK_CONTROL_CYCTIMEREN (1<<9)
#define LINK_CONTROL_RCV_CMP_VALID (1<<7)
#define LINK_CONTROL_SNOOP_ENABLE (1<<6)
#define CYCLE_TIMER 0xf08
#define LINK_PHY 0xf0c
#define LINK_PHY_READ (1<<31)
#define LINK_PHY_WRITE (1<<30)
#define LINK_PHY_ADDR(addr) (addr<<24)
#define LINK_PHY_WDATA(data) (data<<16)
#define LINK_PHY_RADDR(addr) (addr<<8)
#define LINK_INT_STATUS 0xf14
#define LINK_INT_ENABLE 0xf18
/* status and enable have identical bit numbers */
#define LINK_INT_LINK_INT (1<<31)
#define LINK_INT_PHY_TIMEOUT (1<<30)
#define LINK_INT_PHY_REG_RCVD (1<<29)
#define LINK_INT_PHY_BUSRESET (1<<28)
#define LINK_INT_TX_RDY (1<<26)
#define LINK_INT_RX_DATA_RDY (1<<25)
#define LINK_INT_ISO_STUCK (1<<20)
#define LINK_INT_ASYNC_STUCK (1<<19)
#define LINK_INT_SENT_REJECT (1<<17)
#define LINK_INT_HDR_ERR (1<<16)
#define LINK_INT_TX_INVALID_TC (1<<15)
#define LINK_INT_CYC_SECOND (1<<11)
#define LINK_INT_CYC_START (1<<10)
#define LINK_INT_CYC_DONE (1<<9)
#define LINK_INT_CYC_PENDING (1<<8)
#define LINK_INT_CYC_LOST (1<<7)
#define LINK_INT_CYC_ARB_FAILED (1<<6)
#define LINK_INT_GRF_OVERFLOW (1<<5)
#define LINK_INT_ITF_UNDERFLOW (1<<4)
#define LINK_INT_ATF_UNDERFLOW (1<<3)
#define LINK_INT_ISOARB_FAILED (1<<0)
/* PHY specifics */
#define PHY_VENDORID_TI 0x800028
#define PHY_PRODUCTID_TSB41LV03 0x000000
/* this is the physical layout of a PCL, its size is 128 bytes */
struct ti_pcl {
u32 next;
u32 async_error_next;
u32 user_data;
u32 pcl_status;
u32 remaining_transfer_count;
u32 next_data_buffer;
struct {
u32 control;
u32 pointer;
} buffer[13] __attribute__ ((packed));
} __attribute__ ((packed));
#include <linux/stddef.h>
#define pcloffs(MEMBER) (offsetof(struct ti_pcl, MEMBER))
#ifdef CONFIG_IEEE1394_PCILYNX_LOCALRAM
static inline void put_pcl(const struct ti_lynx *lynx, pcl_t pclid,
const struct ti_pcl *pcl)
{
int i;
u32 *in = (u32 *)pcl;
u32 *out = (u32 *)(lynx->local_ram + pclid * sizeof(struct ti_pcl));
for (i = 0; i < 32; i++, out++, in++) {
writel(*in, out);
}
}
static inline void get_pcl(const struct ti_lynx *lynx, pcl_t pclid,
struct ti_pcl *pcl)
{
int i;
u32 *out = (u32 *)pcl;
u32 *in = (u32 *)(lynx->local_ram + pclid * sizeof(struct ti_pcl));
for (i = 0; i < 32; i++, out++, in++) {
*out = readl(in);
}
}
static inline u32 pcl_bus(const struct ti_lynx *lynx, pcl_t pclid)
{
return pci_resource_start(lynx->dev, 1) + pclid * sizeof(struct ti_pcl);
}
#else /* CONFIG_IEEE1394_PCILYNX_LOCALRAM */
static inline void put_pcl(const struct ti_lynx *lynx, pcl_t pclid,
const struct ti_pcl *pcl)
{
memcpy_le32((u32 *)(lynx->pcl_mem + pclid * sizeof(struct ti_pcl)),
(u32 *)pcl, sizeof(struct ti_pcl));
}
static inline void get_pcl(const struct ti_lynx *lynx, pcl_t pclid,
struct ti_pcl *pcl)
{
memcpy_le32((u32 *)pcl,
(u32 *)(lynx->pcl_mem + pclid * sizeof(struct ti_pcl)),
sizeof(struct ti_pcl));
}
static inline u32 pcl_bus(const struct ti_lynx *lynx, pcl_t pclid)
{
return lynx->pcl_mem_dma + pclid * sizeof(struct ti_pcl);
}
#endif /* CONFIG_IEEE1394_PCILYNX_LOCALRAM */
#if defined (CONFIG_IEEE1394_PCILYNX_LOCALRAM) || defined (__BIG_ENDIAN)
typedef struct ti_pcl pcltmp_t;
static inline struct ti_pcl *edit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
pcltmp_t *tmp)
{
get_pcl(lynx, pclid, tmp);
return tmp;
}
static inline void commit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
pcltmp_t *tmp)
{
put_pcl(lynx, pclid, tmp);
}
#else
typedef int pcltmp_t; /* just a dummy */
static inline struct ti_pcl *edit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
pcltmp_t *tmp)
{
return lynx->pcl_mem + pclid * sizeof(struct ti_pcl);
}
static inline void commit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
pcltmp_t *tmp)
{
}
#endif
static inline void run_sub_pcl(const struct ti_lynx *lynx, pcl_t pclid, int idx,
int dmachan)
{
reg_write(lynx, DMA0_CURRENT_PCL + dmachan * 0x20,
pcl_bus(lynx, pclid) + idx * 4);
reg_write(lynx, DMA0_CHAN_CTRL + dmachan * 0x20,
DMA_CHAN_CTRL_ENABLE | DMA_CHAN_CTRL_LINK);
}
static inline void run_pcl(const struct ti_lynx *lynx, pcl_t pclid, int dmachan)
{
run_sub_pcl(lynx, pclid, 0, dmachan);
}
#define PCL_NEXT_INVALID (1<<0)
/* transfer commands */
#define PCL_CMD_RCV (0x1<<24)
#define PCL_CMD_RCV_AND_UPDATE (0xa<<24)
#define PCL_CMD_XMT (0x2<<24)
#define PCL_CMD_UNFXMT (0xc<<24)
#define PCL_CMD_PCI_TO_LBUS (0x8<<24)
#define PCL_CMD_LBUS_TO_PCI (0x9<<24)
/* aux commands */
#define PCL_CMD_NOP (0x0<<24)
#define PCL_CMD_LOAD (0x3<<24)
#define PCL_CMD_STOREQ (0x4<<24)
#define PCL_CMD_STORED (0xb<<24)
#define PCL_CMD_STORE0 (0x5<<24)
#define PCL_CMD_STORE1 (0x6<<24)
#define PCL_CMD_COMPARE (0xe<<24)
#define PCL_CMD_SWAP_COMPARE (0xf<<24)
#define PCL_CMD_ADD (0xd<<24)
#define PCL_CMD_BRANCH (0x7<<24)
/* BRANCH condition codes */
#define PCL_COND_DMARDY_SET (0x1<<20)
#define PCL_COND_DMARDY_CLEAR (0x2<<20)
#define PCL_GEN_INTR (1<<19)
#define PCL_LAST_BUFF (1<<18)
#define PCL_LAST_CMD (PCL_LAST_BUFF)
#define PCL_WAITSTAT (1<<17)
#define PCL_BIGENDIAN (1<<16)
#define PCL_ISOMODE (1<<12)
#endif
