Changes in uspace/srv/hw/irc/apic/apic.c [f5d51de:ccca251] in mainline

File:

• uspace/srv/hw/irc/apic/apic.c (modified) (5 diffs)

uspace/srv/hw/irc/apic/apic.c

@@ -38 +38 @@
 #include <ipc/services.h>
 #include <ipc/irc.h>
-#include <ns.h>
+#include <ipc/ns.h>
 #include <sysinfo.h>
 #include <as.h>
 #include <ddi.h>
+#include <libarch/ddi.h>
+#include <align.h>
 #include <bool.h>
 #include <errno.h>
 #include <async.h>
+#include <align.h>
+#include <async.h>
+#include <stdio.h>
+#include <ipc/devmap.h>
 
 #define NAME  "apic"
 
-#define APIC_MAX_IRQ    15
-
-#define IOREGSEL  (0x00U / sizeof(uint32_t))
-#define IOWIN     (0x10U / sizeof(uint32_t))
-
-#define IOREDTBL   0x10U
-
-/** I/O Register Select Register. */
-typedef union {
-        uint32_t value;
-        struct {
-                uint8_t reg_addr;       /**< APIC Register Address. */
-                unsigned int : 24;      /**< Reserved. */
-        } __attribute__ ((packed));
-} io_regsel_t;
-
-/** I/O Redirection Register. */
-typedef struct io_redirection_reg {
-        union {
-                uint32_t lo;
-                struct {
-                        uint8_t intvec;                 /**< Interrupt Vector. */
-                        unsigned int delmod : 3;        /**< Delivery Mode. */
-                        unsigned int destmod : 1;       /**< Destination mode. */
-                        unsigned int delivs : 1;        /**< Delivery status (RO). */
-                        unsigned int intpol : 1;        /**< Interrupt Input Pin Polarity. */
-                        unsigned int irr : 1;           /**< Remote IRR (RO). */
-                        unsigned int trigger_mode : 1;  /**< Trigger Mode. */
-                        unsigned int masked : 1;        /**< Interrupt Mask. */
-                        unsigned int : 15;              /**< Reserved. */
-                } __attribute__ ((packed));
-        };
-        union {
-                uint32_t hi;
-                struct {
-                        unsigned int : 24;      /**< Reserved. */
-                        uint8_t dest : 8;       /**< Destination Field. */
-                } __attribute__ ((packed));
-        };
-} __attribute__ ((packed)) io_redirection_reg_t;
-
-// FIXME: get the address from the kernel
-#define IO_APIC_BASE    0xfec00000UL
-#define IO_APIC_SIZE    20
-
-ioport32_t *io_apic = NULL;
-
-/** Read from IO APIC register.
- *
- * @param address IO APIC register address.
- *
- * @return Content of the addressed IO APIC register.
- *
- */
-static uint32_t io_apic_read(uint8_t address)
-{
-        io_regsel_t regsel;
-
-        regsel.value = io_apic[IOREGSEL];
-        regsel.reg_addr = address;
-        io_apic[IOREGSEL] = regsel.value;
-        return io_apic[IOWIN];
-}
-
-/** Write to IO APIC register.
- *
- * @param address IO APIC register address.
- * @param val     Content to be written to the addressed IO APIC register.
- *
- */
-static void io_apic_write(uint8_t address, uint32_t val)
-{
-        io_regsel_t regsel;
-
-        regsel.value = io_apic[IOREGSEL];
-        regsel.reg_addr = address;
-        io_apic[IOREGSEL] = regsel.value;
-        io_apic[IOWIN] = val;
-}
-
-static int irq_to_pin(int irq)
-{
-        // FIXME: get the map from the kernel, even though this may work
-        //        for simple cases
-        return irq;
-}
-
 static int apic_enable_irq(sysarg_t irq)
 {
-        io_redirection_reg_t reg;
-
-        if (irq > APIC_MAX_IRQ)
-                return ELIMIT;
-
-        int pin = irq_to_pin(irq);
-        if (pin == -1)
-                return ENOENT;
-
-        reg.lo = io_apic_read((uint8_t) (IOREDTBL + pin * 2));
-        reg.masked = false;
-        io_apic_write((uint8_t) (IOREDTBL + pin * 2), reg.lo);
-
-        return EOK;
+        // FIXME: TODO
+        return ENOTSUP;
 }
 
@@ -157 +64 @@
  * @param iid   Hash of the request that opened the connection.
  * @param icall Call data of the request that opened the connection.
- * @param arg   Local argument.
+ *
  */
-static void apic_connection(ipc_callid_t iid, ipc_call_t *icall, void *arg)
+static void apic_connection(ipc_callid_t iid, ipc_call_t *icall)
 {
         ipc_callid_t callid;
@@ -171 +78 @@
         while (true) {
                 callid = async_get_call(&call);
-                
-                if (!IPC_GET_IMETHOD(call)) {
-                        /* The other side has hung up. */
-                        async_answer_0(callid, EOK);
-                        return;
-                }
                 
                 switch (IPC_GET_IMETHOD(call)) {
@@ -201 +102 @@
         
         if ((sysinfo_get_value("apic", &apic) != EOK) || (!apic)) {
-                printf("%s: No APIC found\n", NAME);
+                printf(NAME ": No APIC found\n");
                 return false;
         }
-
-        if (pio_enable((void *) IO_APIC_BASE, IO_APIC_SIZE,
-            (void **) &io_apic) != EOK)
-                return false;   
         
         async_set_client_connection(apic_connection);
@@ -217 +114 @@
 int main(int argc, char **argv)
 {
-        printf("%s: HelenOS APIC driver\n", NAME);
+        printf(NAME ": HelenOS APIC driver\n");
         
         if (!apic_init())
                 return -1;
         
-        printf("%s: Accepting connections\n", NAME);
-        task_retval(0);
+        printf(NAME ": Accepting connections\n");
         async_manager();