Subversion Repositories HelenOS

Rev

Rev 4148 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 4148 Rev 4311
Line 39... Line 39...
39 
#include <ddi/irq.h>
 39 
#include <ddi/irq.h>
40 
#include <arch/asm.h>
 40 
#include <arch/asm.h>
41 
#include <mm/slab.h>
 41 
#include <mm/slab.h>
42 
#include <ddi/device.h>
 42 
#include <ddi/device.h>
43 
 
 43 
 
44 
static indev_operations_t kbrdin_ops = {
 - 
 
45 
    .poll = NULL
 - 
 
46 
};
 - 
 
47 
 
 - 
 
48 
static inline void z8530_write(ioport8_t *ctl, uint8_t reg, uint8_t val)
 44 
static inline void z8530_write(ioport8_t *ctl, uint8_t reg, uint8_t val)
49 
{
 45 
{
50 
    /*
 46 
    /*
51 
     * Registers 8-15 will automatically issue the Point High
 47 
     * Registers 8-15 will automatically issue the Point High
52 
     * command as their bit 3 is 1.
 48 
     * command as their bit 3 is 1.
Line 80... Line 76...
80 
{
 76 
{
81 
    z8530_instance_t *instance = irq->instance;
 77 
    z8530_instance_t *instance = irq->instance;
82 
    z8530_t *dev = instance->z8530;
 78 
    z8530_t *dev = instance->z8530;
83 
   
 79 
   
84 
    if (z8530_read(&dev->ctl_a, RR0) & RR0_RCA) {
 80 
    if (z8530_read(&dev->ctl_a, RR0) & RR0_RCA) {
85 
        uint8_t x = z8530_read(&dev->ctl_a, RR8);
 81 
        uint8_t data = z8530_read(&dev->ctl_a, RR8);
86 
        indev_push_character(&instance->kbrdin, x);
 82 
        indev_push_character(instance->kbrdin, data);
87 
    }
 83 
    }
88 
}
 84 
}
89 
 
 85 
 
90 
/** Initialize z8530. */
 86 
/** Initialize z8530. */
91 
indev_t *z8530_init(z8530_t *dev, inr_t inr, cir_t cir, void *cir_arg)
 87 
z8530_instance_t *z8530_init(z8530_t *dev, inr_t inr, cir_t cir, void *cir_arg)
92 
{
 88 
{
93 
    z8530_instance_t *instance
 89 
    z8530_instance_t *instance
94 
        = malloc(sizeof(z8530_instance_t), FRAME_ATOMIC);
 90 
        = malloc(sizeof(z8530_instance_t), FRAME_ATOMIC);
95 
    if (!instance)
 91 
    if (instance) {
- 
 
 92 
        instance->z8530 = dev;
- 
 
 93 
        instance->kbrdin = NULL;
- 
 
 94 
       
- 
 
 95 
        irq_initialize(&instance->irq);
- 
 
 96 
        instance->irq.devno = device_assign_devno();
96 
        return false;
 97 
        instance->irq.inr = inr;
- 
 
 98 
        instance->irq.claim = z8530_claim;
- 
 
 99 
        instance->irq.handler = z8530_irq_handler;
- 
 
 100 
        instance->irq.instance = instance;
- 
 
 101 
        instance->irq.cir = cir;
- 
 
 102 
        instance->irq.cir_arg = cir_arg;
- 
 
 103 
    }
97 
   
 104 
   
- 
 
 105 
    return instance;
- 
 
 106 
}
- 
 
 107 
 
98 
    indev_initialize("z8530", &instance->kbrdin, &kbrdin_ops);
 108 
void z8530_wire(z8530_instance_t *instance, indev_t *kbrdin)
- 
 
 109 
{
- 
 
 110 
    ASSERT(instance);
- 
 
 111 
    ASSERT(kbrdin);
99 
   
 112 
   
100 
    instance->z8530 = dev;
 113 
    instance->kbrdin = kbrdin;
101 
   
 114 
   
102 
    irq_initialize(&instance->irq);
 - 
 
103 
    instance->irq.devno = device_assign_devno();
 - 
 
104 
    instance->irq.inr = inr;
 - 
 
105 
    instance->irq.claim = z8530_claim;
 - 
 
106 
    instance->irq.handler = z8530_irq_handler;
 - 
 
107 
    instance->irq.instance = instance;
 - 
 
108 
    instance->irq.cir = cir;
 - 
 
109 
    instance->irq.cir_arg = cir_arg;
 - 
 
110 
    irq_register(&instance->irq);
 115 
    irq_register(&instance->irq);
111 
   
 116 
   
112 
    (void) z8530_read(&dev->ctl_a, RR8);
 117 
    (void) z8530_read(&instance->z8530->ctl_a, RR8);
113 
   
 118 
   
114 
    /*
 119 
    /*
115 
     * Clear any pending TX interrupts or we never manage
 120 
     * Clear any pending TX interrupts or we never manage
116 
     * to set FHC UART interrupt state to idle.
 121 
     * to set FHC UART interrupt state to idle.
117 
     */
 122 
     */
118 
    z8530_write(&dev->ctl_a, WR0, WR0_TX_IP_RST);
 123 
    z8530_write(&instance->z8530->ctl_a, WR0, WR0_TX_IP_RST);
119 
   
 124 
   
120 
    /* interrupt on all characters */
 125 
    /* interrupt on all characters */
121 
    z8530_write(&dev->ctl_a, WR1, WR1_IARCSC);
 126 
    z8530_write(&instance->z8530->ctl_a, WR1, WR1_IARCSC);
122 
   
 127 
   
123 
    /* 8 bits per character and enable receiver */
 128 
    /* 8 bits per character and enable receiver */
124 
    z8530_write(&dev->ctl_a, WR3, WR3_RX8BITSCH | WR3_RX_ENABLE);
 129 
    z8530_write(&instance->z8530->ctl_a, WR3, WR3_RX8BITSCH | WR3_RX_ENABLE);
125 
   
 130 
   
126 
    /* Master Interrupt Enable. */
 131 
    /* Master Interrupt Enable. */
127 
    z8530_write(&dev->ctl_a, WR9, WR9_MIE);
 132 
    z8530_write(&instance->z8530->ctl_a, WR9, WR9_MIE);
128 
   
 - 
 
129 
    return &instance->kbrdin;
 - 
 
130 
}
 133 
}
131 
 
 134 
 
132 
/** @}
 135 
/** @}
133 
 */
 136 
 */