forked from Qortal/Brooklyn
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
239 lines
6.5 KiB
C
239 lines
6.5 KiB
C
#ifndef __LINUX_PARPORT_PC_H
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#define __LINUX_PARPORT_PC_H
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#include <asm/io.h>
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/* --- register definitions ------------------------------- */
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#define ECONTROL(p) ((p)->base_hi + 0x2)
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#define CONFIGB(p) ((p)->base_hi + 0x1)
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#define CONFIGA(p) ((p)->base_hi + 0x0)
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#define FIFO(p) ((p)->base_hi + 0x0)
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#define EPPDATA(p) ((p)->base + 0x4)
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#define EPPADDR(p) ((p)->base + 0x3)
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#define CONTROL(p) ((p)->base + 0x2)
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#define STATUS(p) ((p)->base + 0x1)
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#define DATA(p) ((p)->base + 0x0)
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struct parport_pc_private {
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/* Contents of CTR. */
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unsigned char ctr;
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/* Bitmask of writable CTR bits. */
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unsigned char ctr_writable;
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/* Whether or not there's an ECR. */
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int ecr;
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/* Number of PWords that FIFO will hold. */
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int fifo_depth;
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/* Number of bytes per portword. */
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int pword;
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/* Not used yet. */
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int readIntrThreshold;
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int writeIntrThreshold;
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/* buffer suitable for DMA, if DMA enabled */
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char *dma_buf;
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dma_addr_t dma_handle;
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struct list_head list;
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struct parport *port;
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};
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struct parport_pc_via_data
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{
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/* ISA PnP IRQ routing register 1 */
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u8 via_pci_parport_irq_reg;
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/* ISA PnP DMA request routing register */
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u8 via_pci_parport_dma_reg;
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/* Register and value to enable SuperIO configuration access */
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u8 via_pci_superio_config_reg;
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u8 via_pci_superio_config_data;
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/* SuperIO function register number */
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u8 viacfg_function;
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/* parallel port control register number */
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u8 viacfg_parport_control;
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/* Parallel port base address register */
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u8 viacfg_parport_base;
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};
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static __inline__ void parport_pc_write_data(struct parport *p, unsigned char d)
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{
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#ifdef DEBUG_PARPORT
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printk (KERN_DEBUG "parport_pc_write_data(%p,0x%02x)\n", p, d);
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#endif
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outb(d, DATA(p));
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}
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static __inline__ unsigned char parport_pc_read_data(struct parport *p)
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{
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unsigned char val = inb (DATA (p));
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#ifdef DEBUG_PARPORT
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printk (KERN_DEBUG "parport_pc_read_data(%p) = 0x%02x\n",
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p, val);
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#endif
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return val;
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}
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#ifdef DEBUG_PARPORT
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static inline void dump_parport_state (char *str, struct parport *p)
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{
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/* here's hoping that reading these ports won't side-effect anything underneath */
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unsigned char ecr = inb (ECONTROL (p));
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unsigned char dcr = inb (CONTROL (p));
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unsigned char dsr = inb (STATUS (p));
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static const char *const ecr_modes[] = {"SPP", "PS2", "PPFIFO", "ECP", "xXx", "yYy", "TST", "CFG"};
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const struct parport_pc_private *priv = p->physport->private_data;
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int i;
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printk (KERN_DEBUG "*** parport state (%s): ecr=[%s", str, ecr_modes[(ecr & 0xe0) >> 5]);
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if (ecr & 0x10) printk (",nErrIntrEn");
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if (ecr & 0x08) printk (",dmaEn");
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if (ecr & 0x04) printk (",serviceIntr");
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if (ecr & 0x02) printk (",f_full");
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if (ecr & 0x01) printk (",f_empty");
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for (i=0; i<2; i++) {
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printk ("] dcr(%s)=[", i ? "soft" : "hard");
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dcr = i ? priv->ctr : inb (CONTROL (p));
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if (dcr & 0x20) {
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printk ("rev");
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} else {
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printk ("fwd");
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}
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if (dcr & 0x10) printk (",ackIntEn");
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if (!(dcr & 0x08)) printk (",N-SELECT-IN");
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if (dcr & 0x04) printk (",N-INIT");
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if (!(dcr & 0x02)) printk (",N-AUTOFD");
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if (!(dcr & 0x01)) printk (",N-STROBE");
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}
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printk ("] dsr=[");
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if (!(dsr & 0x80)) printk ("BUSY");
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if (dsr & 0x40) printk (",N-ACK");
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if (dsr & 0x20) printk (",PERROR");
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if (dsr & 0x10) printk (",SELECT");
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if (dsr & 0x08) printk (",N-FAULT");
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printk ("]\n");
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return;
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}
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#else /* !DEBUG_PARPORT */
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#define dump_parport_state(args...)
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#endif /* !DEBUG_PARPORT */
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/* __parport_pc_frob_control differs from parport_pc_frob_control in that
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* it doesn't do any extra masking. */
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static __inline__ unsigned char __parport_pc_frob_control (struct parport *p,
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unsigned char mask,
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unsigned char val)
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{
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struct parport_pc_private *priv = p->physport->private_data;
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unsigned char ctr = priv->ctr;
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#ifdef DEBUG_PARPORT
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printk (KERN_DEBUG
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"__parport_pc_frob_control(%02x,%02x): %02x -> %02x\n",
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mask, val, ctr, ((ctr & ~mask) ^ val) & priv->ctr_writable);
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#endif
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ctr = (ctr & ~mask) ^ val;
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ctr &= priv->ctr_writable; /* only write writable bits. */
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outb (ctr, CONTROL (p));
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priv->ctr = ctr; /* Update soft copy */
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return ctr;
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}
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static __inline__ void parport_pc_data_reverse (struct parport *p)
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{
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__parport_pc_frob_control (p, 0x20, 0x20);
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}
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static __inline__ void parport_pc_data_forward (struct parport *p)
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{
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__parport_pc_frob_control (p, 0x20, 0x00);
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}
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static __inline__ void parport_pc_write_control (struct parport *p,
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unsigned char d)
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{
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const unsigned char wm = (PARPORT_CONTROL_STROBE |
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PARPORT_CONTROL_AUTOFD |
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PARPORT_CONTROL_INIT |
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PARPORT_CONTROL_SELECT);
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/* Take this out when drivers have adapted to newer interface. */
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if (d & 0x20) {
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printk (KERN_DEBUG "%s (%s): use data_reverse for this!\n",
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p->name, p->cad->name);
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parport_pc_data_reverse (p);
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}
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__parport_pc_frob_control (p, wm, d & wm);
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}
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static __inline__ unsigned char parport_pc_read_control(struct parport *p)
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{
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const unsigned char rm = (PARPORT_CONTROL_STROBE |
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PARPORT_CONTROL_AUTOFD |
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PARPORT_CONTROL_INIT |
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PARPORT_CONTROL_SELECT);
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const struct parport_pc_private *priv = p->physport->private_data;
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return priv->ctr & rm; /* Use soft copy */
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}
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static __inline__ unsigned char parport_pc_frob_control (struct parport *p,
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unsigned char mask,
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unsigned char val)
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{
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const unsigned char wm = (PARPORT_CONTROL_STROBE |
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PARPORT_CONTROL_AUTOFD |
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PARPORT_CONTROL_INIT |
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PARPORT_CONTROL_SELECT);
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/* Take this out when drivers have adapted to newer interface. */
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if (mask & 0x20) {
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printk (KERN_DEBUG "%s (%s): use data_%s for this!\n",
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p->name, p->cad->name,
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(val & 0x20) ? "reverse" : "forward");
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if (val & 0x20)
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parport_pc_data_reverse (p);
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else
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parport_pc_data_forward (p);
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}
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/* Restrict mask and val to control lines. */
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mask &= wm;
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val &= wm;
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return __parport_pc_frob_control (p, mask, val);
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}
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static __inline__ unsigned char parport_pc_read_status(struct parport *p)
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{
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return inb(STATUS(p));
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}
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static __inline__ void parport_pc_disable_irq(struct parport *p)
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{
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__parport_pc_frob_control (p, 0x10, 0x00);
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}
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static __inline__ void parport_pc_enable_irq(struct parport *p)
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{
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__parport_pc_frob_control (p, 0x10, 0x10);
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}
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extern void parport_pc_release_resources(struct parport *p);
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extern int parport_pc_claim_resources(struct parport *p);
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/* PCMCIA code will want to get us to look at a port. Provide a mechanism. */
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extern struct parport *parport_pc_probe_port(unsigned long base,
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unsigned long base_hi,
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int irq, int dma,
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struct device *dev,
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int irqflags);
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extern void parport_pc_unregister_port(struct parport *p);
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#endif
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