diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/parport_pc.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/parport_pc.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/parport_pc.h b/pfinet/linux-src/include/linux/parport_pc.h new file mode 100644 index 00000000..a74c7a12 --- /dev/null +++ b/pfinet/linux-src/include/linux/parport_pc.h @@ -0,0 +1,151 @@ +#ifndef __LINUX_PARPORT_PC_H +#define __LINUX_PARPORT_PC_H + +#include <asm/io.h> + +/* --- register definitions ------------------------------- */ + +#define ECONTROL 0x402 +#define CONFIGB 0x401 +#define CONFIGA 0x400 +#define EPPDATA 0x4 +#define EPPADDR 0x3 +#define CONTROL 0x2 +#define STATUS 0x1 +#define DATA 0 + +/* Private data for PC low-level driver. */ +struct parport_pc_private { + /* Contents of CTR. */ + unsigned char ctr; +}; + +extern int parport_pc_epp_clear_timeout(struct parport *pb); + +extern volatile unsigned char parport_pc_ctr; + +extern __inline__ void parport_pc_write_epp(struct parport *p, unsigned char d) +{ + outb(d, p->base+EPPDATA); +} + +extern __inline__ unsigned char parport_pc_read_epp(struct parport *p) +{ + return inb(p->base+EPPDATA); +} + +extern __inline__ void parport_pc_write_epp_addr(struct parport *p, unsigned char d) +{ + outb(d, p->base+EPPADDR); +} + +extern __inline__ unsigned char parport_pc_read_epp_addr(struct parport *p) +{ + return inb(p->base+EPPADDR); +} + +extern __inline__ int parport_pc_check_epp_timeout(struct parport *p) +{ + if (!(inb(p->base+STATUS) & 1)) + return 0; + parport_pc_epp_clear_timeout(p); + return 1; +} + +extern __inline__ unsigned char parport_pc_read_configb(struct parport *p) +{ + return inb(p->base+CONFIGB); +} + +extern __inline__ void parport_pc_write_data(struct parport *p, unsigned char d) +{ + outb(d, p->base+DATA); +} + +extern __inline__ unsigned char parport_pc_read_data(struct parport *p) +{ + return inb(p->base+DATA); +} + +extern __inline__ void parport_pc_write_control(struct parport *p, unsigned char d) +{ + struct parport_pc_private *priv = p->private_data; + priv->ctr = d;/* update soft copy */ + outb(d, p->base+CONTROL); +} + +extern __inline__ unsigned char parport_pc_read_control(struct parport *p) +{ + struct parport_pc_private *priv = p->private_data; + return priv->ctr; +} + +extern __inline__ unsigned char parport_pc_frob_control(struct parport *p, unsigned char mask, unsigned char val) +{ + struct parport_pc_private *priv = p->private_data; + unsigned char ctr = priv->ctr; + ctr = (ctr & ~mask) ^ val; + outb (ctr, p->base+CONTROL); + return priv->ctr = ctr; /* update soft copy */ +} + +extern __inline__ void parport_pc_write_status(struct parport *p, unsigned char d) +{ + outb(d, p->base+STATUS); +} + +extern __inline__ unsigned char parport_pc_read_status(struct parport *p) +{ + return inb(p->base+STATUS); +} + +extern __inline__ void parport_pc_write_econtrol(struct parport *p, unsigned char d) +{ + outb(d, p->base+ECONTROL); +} + +extern __inline__ unsigned char parport_pc_read_econtrol(struct parport *p) +{ + return inb(p->base+ECONTROL); +} + +extern __inline__ unsigned char parport_pc_frob_econtrol(struct parport *p, unsigned char mask, unsigned char val) +{ + unsigned char old = inb(p->base+ECONTROL); + outb(((old & ~mask) ^ val), p->base+ECONTROL); + return old; +} + +extern void parport_pc_change_mode(struct parport *p, int m); + +extern void parport_pc_write_fifo(struct parport *p, unsigned char v); + +extern unsigned char parport_pc_read_fifo(struct parport *p); + +extern void parport_pc_disable_irq(struct parport *p); + +extern void parport_pc_enable_irq(struct parport *p); + +extern void parport_pc_release_resources(struct parport *p); + +extern int parport_pc_claim_resources(struct parport *p); + +extern void parport_pc_init_state(struct parport_state *s); + +extern void parport_pc_save_state(struct parport *p, struct parport_state *s); + +extern void parport_pc_restore_state(struct parport *p, struct parport_state *s); + +extern size_t parport_pc_epp_read_block(struct parport *p, void *buf, size_t length); + +extern size_t parport_pc_epp_write_block(struct parport *p, void *buf, size_t length); + +extern int parport_pc_ecp_read_block(struct parport *p, void *buf, size_t length, void (*fn)(struct parport *, void *, size_t), void *handle); + +extern int parport_pc_ecp_write_block(struct parport *p, void *buf, size_t length, void (*fn)(struct parport *, void *, size_t), void *handle); + +extern void parport_pc_inc_use_count(void); + +extern void parport_pc_dec_use_count(void); + +#endif |