Leif's API fixes
This commit is contained in:
Leif Lindholm
Vladimir 'phcoder' Serbinenko
parent
bb9f92b9b1
commit
b385e0723b
11 changed files with 217 additions and 387 deletions
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@ -18,6 +18,7 @@
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/uboot/api_public.h>
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#include <grub/uboot/uboot.h>
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/*
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@ -38,25 +39,25 @@
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* returns: 0 if the call not found, 1 if serviced
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*/
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extern int (*uboot_syscall_ptr) (int, int *, ...);
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extern int uboot_syscall (int, int *, ...);
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extern grub_addr_t uboot_search_hint;
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extern int (*grub_uboot_syscall_ptr) (int, int *, ...);
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extern int grub_uboot_syscall (int, int *, ...);
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extern grub_addr_t grub_uboot_search_hint;
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static struct sys_info uboot_sys_info;
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static struct mem_region uboot_mem_info[5];
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static struct device_info uboot_devices[6];
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static struct device_info * devices;
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static int num_devices;
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int
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uboot_api_init (void)
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grub_uboot_api_init (void)
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{
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struct api_signature *start, *end;
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struct api_signature *p;
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if (uboot_search_hint)
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if (grub_uboot_search_hint)
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{
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/* Extended search range to work around Trim Slice U-Boot issue */
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start = (struct api_signature *) ((uboot_search_hint & ~0x000fffff)
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start = (struct api_signature *) ((grub_uboot_search_hint & ~0x000fffff)
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- 0x00500000);
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end =
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(struct api_signature *) ((grub_addr_t) start + UBOOT_API_SEARCH_LEN -
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@ -73,7 +74,7 @@ uboot_api_init (void)
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{
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if (grub_memcmp (&(p->magic), API_SIG_MAGIC, API_SIG_MAGLEN) == 0)
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{
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uboot_syscall_ptr = p->syscall;
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grub_uboot_syscall_ptr = p->syscall;
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return p->version;
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}
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}
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@ -81,69 +82,50 @@ uboot_api_init (void)
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return 0;
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}
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/* All functions below are wrappers around the uboot_syscall() function */
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/*
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* int API_getc(int *c)
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* All functions below are wrappers around the grub_uboot_syscall() function
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*/
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int
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uboot_getc (void)
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grub_uboot_getc (void)
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{
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int c;
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if (!uboot_syscall (API_GETC, NULL, &c))
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if (!grub_uboot_syscall (API_GETC, NULL, &c))
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return -1;
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return c;
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}
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/*
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* int API_tstc(int *c)
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*/
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int
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uboot_tstc (void)
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grub_uboot_tstc (void)
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{
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int c;
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if (!uboot_syscall (API_TSTC, NULL, &c))
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if (!grub_uboot_syscall (API_TSTC, NULL, &c))
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return -1;
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return c;
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}
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/*
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* int API_putc(char *ch)
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*/
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void
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uboot_putc (int c)
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grub_uboot_putc (int c)
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{
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uboot_syscall (API_PUTC, NULL, &c);
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grub_uboot_syscall (API_PUTC, NULL, &c);
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}
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/*
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* int API_puts(const char *s)
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*/
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void
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uboot_puts (const char *s)
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grub_uboot_puts (const char *s)
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{
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uboot_syscall (API_PUTS, NULL, s);
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grub_uboot_syscall (API_PUTS, NULL, s);
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}
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/*
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* int API_reset(void)
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*/
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void
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uboot_reset (void)
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grub_uboot_reset (void)
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{
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uboot_syscall (API_RESET, NULL, 0);
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grub_uboot_syscall (API_RESET, NULL, 0);
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}
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/*
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* int API_get_sys_info(struct sys_info *si)
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*
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* fill out the sys_info struct containing selected parameters about the
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* machine
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*/
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struct sys_info *
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uboot_get_sys_info (void)
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grub_uboot_get_sys_info (void)
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{
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int retval;
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@ -152,212 +134,193 @@ uboot_get_sys_info (void)
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uboot_sys_info.mr = uboot_mem_info;
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uboot_sys_info.mr_no = sizeof (uboot_mem_info) / sizeof (struct mem_region);
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if (uboot_syscall (API_GET_SYS_INFO, &retval, &uboot_sys_info))
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if (grub_uboot_syscall (API_GET_SYS_INFO, &retval, &uboot_sys_info))
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if (retval == 0)
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return &uboot_sys_info;
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return NULL;
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}
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/*
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* int API_udelay(unsigned long *udelay)
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*/
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void
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uboot_udelay (grub_uint32_t usec)
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grub_uboot_udelay (grub_uint32_t usec)
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{
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uboot_syscall (API_UDELAY, NULL, &usec);
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grub_uboot_syscall (API_UDELAY, NULL, &usec);
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}
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/*
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* int API_get_timer(unsigned long *current, unsigned long *base)
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*/
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grub_uint32_t
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uboot_get_timer (grub_uint32_t base)
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grub_uboot_get_timer (grub_uint32_t base)
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{
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grub_uint32_t current;
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if (!uboot_syscall (API_GET_TIMER, NULL, ¤t, &base))
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if (!grub_uboot_syscall (API_GET_TIMER, NULL, ¤t, &base))
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return 0;
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return current;
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}
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/*
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* int API_dev_enum(struct device_info *)
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*
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*/
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int
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uboot_dev_enum (void)
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grub_uboot_dev_enum (void)
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{
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int max;
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struct device_info * enum_devices;
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int num_enum_devices, max_devices;
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grub_memset (&uboot_devices, 0, sizeof (uboot_devices));
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max = sizeof (uboot_devices) / sizeof (struct device_info);
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if (num_devices)
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return num_devices;
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max_devices = 2;
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enum_devices = grub_malloc (sizeof(struct device_info) * max_devices);
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if (!enum_devices)
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return 0;
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/*
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* The API_DEV_ENUM call starts a fresh enumeration when passed a
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* struct device_info with a NULL cookie, and then depends on having
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* the prevoiusly enumerated device cookie "seeded" into the target
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* the previously enumerated device cookie "seeded" into the target
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* structure.
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*/
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if (!uboot_syscall (API_DEV_ENUM, NULL, &uboot_devices)
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|| uboot_devices[0].cookie == NULL)
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return 0;
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for (num_devices = 1; num_devices < max; num_devices++)
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enum_devices[0].cookie = NULL;
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num_enum_devices = 0;
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if (grub_uboot_syscall (API_DEV_ENUM, NULL,
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&enum_devices[num_enum_devices]) == 0)
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goto error;
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num_enum_devices++;
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while (enum_devices[num_enum_devices - 1].cookie != NULL)
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{
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uboot_devices[num_devices].cookie =
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uboot_devices[num_devices - 1].cookie;
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if (!uboot_syscall (API_DEV_ENUM, NULL, &uboot_devices[num_devices]))
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return 0;
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if (num_enum_devices == max_devices)
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{
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struct device_info *tmp;
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int new_max;
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new_max = max_devices * 2;
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tmp = grub_realloc (enum_devices,
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sizeof (struct device_info) * new_max);
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if (!tmp)
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{
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/* Failed to realloc, so return what we have */
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break;
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}
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enum_devices = tmp;
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max_devices = new_max;
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}
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/* When no more devices to enumerate, target cookie set to NULL */
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if (uboot_devices[num_devices].cookie == NULL)
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enum_devices[num_enum_devices].cookie =
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enum_devices[num_enum_devices - 1].cookie;
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if (grub_uboot_syscall (API_DEV_ENUM, NULL,
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&enum_devices[num_enum_devices]) == 0)
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goto error;
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if (enum_devices[num_enum_devices].cookie == NULL)
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break;
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num_enum_devices++;
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}
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return num_devices;
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devices = enum_devices;
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return num_devices = num_enum_devices;
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error:
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grub_free (enum_devices);
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return 0;
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}
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#define VALID_DEV(x) (((x) < num_devices) && ((x) >= 0))
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#define OPEN_DEV(x) (VALID_DEV(x) && (uboot_devices[(x)].state == DEV_STA_OPEN))
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#define OPEN_DEV(x) ((x->state == DEV_STA_OPEN))
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struct device_info *
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uboot_dev_get (int handle)
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grub_uboot_dev_get (int index)
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{
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if (VALID_DEV (handle))
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return &uboot_devices[handle];
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if (VALID_DEV (index))
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return &devices[index];
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return NULL;
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}
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/*
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* int API_dev_open(struct device_info *)
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*/
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int
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uboot_dev_open (int handle)
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grub_uboot_dev_open (struct device_info *dev)
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{
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struct device_info *dev;
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int retval;
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if (!VALID_DEV (handle))
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return -1;
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dev = &uboot_devices[handle];
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if (!uboot_syscall (API_DEV_OPEN, &retval, dev))
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if (!grub_uboot_syscall (API_DEV_OPEN, &retval, dev))
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return -1;
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return retval;
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}
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/*
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* int API_dev_close(struct device_info *)
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*/
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int
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uboot_dev_close (int handle)
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grub_uboot_dev_close (struct device_info *dev)
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{
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struct device_info *dev;
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int retval;
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if (!VALID_DEV (handle))
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return -1;
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dev = &uboot_devices[handle];
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if (!uboot_syscall (API_DEV_CLOSE, &retval, dev))
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if (!grub_uboot_syscall (API_DEV_CLOSE, &retval, dev))
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return -1;
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return retval;
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}
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/*
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* int API_dev_read(struct device_info *di, void *buf, size_t *len,
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* unsigned long *start, size_t *act_len)
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*/
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int
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uboot_dev_read (int handle, void *buf, lbasize_t blocks,
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lbastart_t start, lbasize_t * real_blocks)
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grub_uboot_dev_read (struct device_info *dev, void *buf, grub_size_t blocks,
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grub_uint32_t start, grub_size_t * real_blocks)
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{
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struct device_info *dev;
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int retval;
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if (!OPEN_DEV (handle))
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if (!OPEN_DEV (dev))
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return -1;
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dev = &uboot_devices[handle];
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if (!uboot_syscall (API_DEV_READ, &retval, dev, buf,
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&blocks, &start, real_blocks))
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if (!grub_uboot_syscall (API_DEV_READ, &retval, dev, buf,
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&blocks, &start, real_blocks))
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return -1;
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return retval;
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}
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/*
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* int API_dev_read(struct device_info *di, void *buf,
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* size_t *len, size_t *act_len)
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*/
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int
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uboot_dev_recv (int handle, void *buf, int size, int *real_size)
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grub_uboot_dev_recv (struct device_info *dev, void *buf,
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int size, int *real_size)
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{
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struct device_info *dev;
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int retval;
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if (!OPEN_DEV (handle))
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if (!OPEN_DEV (dev))
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return -1;
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dev = &uboot_devices[handle];
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if (!uboot_syscall (API_DEV_READ, &retval, dev, buf, &size, real_size))
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if (!grub_uboot_syscall (API_DEV_READ, &retval, dev, buf, &size, real_size))
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return -1;
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return retval;
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}
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/*
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* Notice: this is for sending network packets only, as U-Boot does not
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* support writing to storage at the moment (12.2007)
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*
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* int API_dev_write(struct device_info *di, void *buf, int *len)
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*/
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int
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uboot_dev_send (int handle, void *buf, int size)
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grub_uboot_dev_send (struct device_info *dev, void *buf, int size)
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{
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struct device_info *dev;
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int retval;
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if (!OPEN_DEV (handle))
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if (!OPEN_DEV (dev))
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return -1;
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dev = &uboot_devices[handle];
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if (!uboot_syscall (API_DEV_WRITE, &retval, dev, buf, &size))
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if (!grub_uboot_syscall (API_DEV_WRITE, &retval, dev, buf, &size))
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return -1;
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return retval;
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}
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/*
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* int API_env_get(const char *name, char **value)
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*/
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char *
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uboot_env_get (const char *name)
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grub_uboot_env_get (const char *name)
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{
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char *value;
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if (!uboot_syscall (API_ENV_GET, NULL, name, &value))
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if (!grub_uboot_syscall (API_ENV_GET, NULL, name, &value))
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return NULL;
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return value;
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}
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/*
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* int API_env_set(const char *name, const char *value)
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*/
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void
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uboot_env_set (const char *name, const char *value)
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grub_uboot_env_set (const char *name, const char *value)
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{
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uboot_syscall (API_ENV_SET, NULL, name, value);
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grub_uboot_syscall (API_ENV_SET, NULL, name, value);
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}
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