Clear screen from GIP client (in login)

1 files changed, 42 insertions, 6 deletions

diff --git a/src/sysbin/login/main.c b/src/sysbin/login/main.c
index b836eec..1d5da8a 100644
--- a/src/sysbin/login/main.c
+++ b/src/sysbin/login/main.c
@@ -1,22 +1,26 @@
 #include <string.h>
 #include <malloc.h>
-
+#include <user_region.h>
 #include <debug.h>
 
 #include <gip.h>
 
 typedef struct {
 	framebuffer_info_t mode;
+
+	size_t fb_size;
 	void* map;
+
 	fd_t fd;
-	uint32_t features;
+
+	uint32_t sv_features, cl_features;
 } loginc_t;
 
 void c_buffer_info(gip_handler_t *s, gip_msg_header *p, gip_buffer_info_msg *m);
 void c_unknown_msg(gip_handler_t *s, gip_msg_header *p);
 void c_fd_error(gip_handler_t *s);
 
-void c_async_initiate(gip_handler_t *s, gip_msg_header *p, void* data);
+void c_async_initiate(gip_handler_t *s, gip_msg_header *p, void* msgdata, void* hdata);
 
 gip_handler_callbacks_t loginc_cb = {
 	.reset = 0,
@@ -56,7 +60,36 @@ int main(int argc, char **argv) {
 
 void c_buffer_info(gip_handler_t *s, gip_msg_header *p, gip_buffer_info_msg *m) {
 	dbg_printf("[login] Got buffer info msg\n");
-	// TODO
+
+	loginc_t *c = (loginc_t*)s->data;
+
+	if (c->fd != 0) close(c->fd);
+	if (c->map != 0) {
+		munmap(c->map);
+		region_free(c->map);
+	}
+
+	c->fd = use_token(&m->tok);
+	if (c->fd != 0) {
+		memcpy(&c->mode, &m->geom, sizeof(framebuffer_info_t));
+
+		dbg_printf("[login] Got buffer on FD %d, %dx%dx%d\n",
+			c->fd, c->mode.width, c->mode.height, c->mode.bpp);
+
+		c->fb_size = c->mode.pitch * c->mode.height;
+
+		c->map = region_alloc(c->fb_size, "Framebuffer");
+		if (c->map != 0) {
+			bool ok = mmap_file(c->fd, 0, c->map, c->fb_size, MM_READ | MM_WRITE);
+			if (ok) {
+				memset(c->map, 0, c->fb_size);
+			} else {
+				dbg_printf("[login] Could not mmap buffer.\n");
+				region_free(c->map);
+				c->map = 0;
+			}
+		}
+	}
 }
 
 void c_unknown_msg(gip_handler_t *s, gip_msg_header *p) {
@@ -67,8 +100,11 @@ void c_fd_error(gip_handler_t *s) {
 	// TODO
 }
 
-void c_async_initiate(gip_handler_t *s, gip_msg_header *p, void* data) {
-	dbg_printf("[login] Got initiate reply to reset request.\n");
+void c_async_initiate(gip_handler_t *s, gip_msg_header *p, void* msgdata, void* hdata) {
+	loginc_t *c = (loginc_t*)s->data;
+	c->sv_features = p->arg;
+
+	dbg_printf("[login] Got initiate reply to reset request (features 0x%p).\n", c->sv_features);
 }
 
 /* vim: set ts=4 sw=4 tw=0 noet :*/