[POWERPC] PS3: Rework AV settings driver

Make the PS3 ps3av driver a loadable module.
  - Replace static data with kmalloc()'ed.
      o Allocate struct ps3av dynamically, as it contains data used as vuart
        receive/transmit buffers
      o Move static recv_buf from ps3av_do_pkt() to struct ps3av
  - Move ps3av_vuart_{read,write}() from drivers/ps3/ps3av_cmd.c to
    drivers/ps3/ps3av.c and make them static as they're used in that file only.
  - Make device a PS3 system-bus device.
  - Update copyright formatting.
  - Make two new routines ps3av_register_flip_ctl() and ps3av_flip_ctl() to
    support late binding of the frame buffer flip control routine.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

4 files changed, 220 insertions, 226 deletions

diff --git a/drivers/ps3/Makefile b/drivers/ps3/Makefile
index a6d8db79b20c..b8c5547adbde 100644
--- a/drivers/ps3/Makefile
+++ b/drivers/ps3/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_PS3_VUART) += vuart.o
-obj-$(CONFIG_PS3_PS3AV) += ps3av.o ps3av_cmd.o
+obj-$(CONFIG_PS3_PS3AV) += ps3av_mod.o
+ps3av_mod-objs          += ps3av.o ps3av_cmd.o
 obj-$(CONFIG_PPC_PS3) += sys-manager-core.o
 obj-$(CONFIG_PS3_SYS_MANAGER) += sys-manager.o
diff --git a/drivers/ps3/ps3av.c b/drivers/ps3/ps3av.c
index 1393e64335f9..85e21614f868 100644
--- a/drivers/ps3/ps3av.c
+++ b/drivers/ps3/ps3av.c
@@ -1,32 +1,30 @@
 /*
- * Copyright (C) 2006 Sony Computer Entertainment Inc.
- * Copyright 2006, 2007 Sony Corporation
+ *  PS3 AV backend support.
  *
- * AV backend support for PS3
+ *  Copyright (C) 2007 Sony Computer Entertainment Inc.
+ *  Copyright 2007 Sony Corp.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published
- * by the Free Software Foundation; version 2 of the License.
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/kernel.h>
 #include <linux/ioctl.h>
 
 #include <asm/firmware.h>
-#include <asm/lv1call.h>
 #include <asm/ps3av.h>
 #include <asm/ps3.h>
 
@@ -39,13 +37,12 @@ static int timeout = 5000;	/* in msec ( 5 sec ) */
 module_param(timeout, int, 0644);
 
 static struct ps3av {
-        int available;
         struct mutex mutex;
         struct work_struct work;
         struct completion done;
         struct workqueue_struct *wq;
         int open_count;
-        struct ps3_vuart_port_device *dev;
+        struct ps3_system_bus_device *dev;
 
         int region;
         struct ps3av_pkt_av_get_hw_conf av_hw_conf;
@@ -55,11 +52,13 @@ static struct ps3av {
         u32 audio_port;
         int ps3av_mode;
         int ps3av_mode_old;
-} ps3av;
-
-static struct ps3_vuart_port_device ps3av_dev = {
-        .match_id = PS3_MATCH_ID_AV_SETTINGS
-};
+        union {
+                struct ps3av_reply_hdr reply_hdr;
+                u8 raw[PS3AV_BUF_SIZE];
+        } recv_buf;
+        void (*flip_ctl)(int on, void *data);
+        void *flip_data;
+} *ps3av;
 
 /* color space */
 #define YUV444 PS3AV_CMD_VIDEO_CS_YUV444_8
@@ -169,7 +168,7 @@ static int ps3av_parse_event_packet(const struct ps3av_reply_hdr *hdr)
         if (hdr->cid & PS3AV_EVENT_CMD_MASK) {
                 table = ps3av_search_cmd_table(hdr->cid, PS3AV_EVENT_CMD_MASK);
                 if (table)
-                        dev_dbg(&ps3av_dev.core,
+                        dev_dbg(&ps3av->dev->core,
                                 "recv event packet cid:%08x port:0x%x size:%d\n",
                                 hdr->cid, ps3av_event_get_port_id(hdr->cid),
                                 hdr->size);
@@ -182,6 +181,41 @@ static int ps3av_parse_event_packet(const struct ps3av_reply_hdr *hdr)
         return 0;
 }
 
+
+#define POLLING_INTERVAL  25    /* in msec */
+
+static int ps3av_vuart_write(struct ps3_system_bus_device *dev,
+                             const void *buf, unsigned long size)
+{
+        int error;
+        dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
+        error = ps3_vuart_write(dev, buf, size);
+        dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
+        return error ? error : size;
+}
+
+static int ps3av_vuart_read(struct ps3_system_bus_device *dev, void *buf,
+                            unsigned long size, int timeout)
+{
+        int error;
+        int loopcnt = 0;
+
+        dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
+        timeout = (timeout + POLLING_INTERVAL - 1) / POLLING_INTERVAL;
+        while (loopcnt++ <= timeout) {
+                error = ps3_vuart_read(dev, buf, size);
+                if (!error)
+                        return size;
+                if (error != -EAGAIN) {
+                        printk(KERN_ERR "%s: ps3_vuart_read failed %d\n",
+                               __func__, error);
+                        return error;
+                }
+                msleep(POLLING_INTERVAL);
+        }
+        return -EWOULDBLOCK;
+}
+
 static int ps3av_send_cmd_pkt(const struct ps3av_send_hdr *send_buf,
                               struct ps3av_reply_hdr *recv_buf, int write_len,
                               int read_len)
@@ -190,13 +224,13 @@ static int ps3av_send_cmd_pkt(const struct ps3av_send_hdr *send_buf,
         u32 cmd;
         int event;
 
-        if (!ps3av.available)
+        if (!ps3av)
                 return -ENODEV;
 
         /* send pkt */
-        res = ps3av_vuart_write(ps3av.dev, send_buf, write_len);
+        res = ps3av_vuart_write(ps3av->dev, send_buf, write_len);
         if (res < 0) {
-                dev_dbg(&ps3av_dev.core,
+                dev_dbg(&ps3av->dev->core,
                         "%s: ps3av_vuart_write() failed (result=%d)\n",
                         __func__, res);
                 return res;
@@ -206,20 +240,20 @@ static int ps3av_send_cmd_pkt(const struct ps3av_send_hdr *send_buf,
         cmd = send_buf->cid;
         do {
                 /* read header */
-                res = ps3av_vuart_read(ps3av.dev, recv_buf, PS3AV_HDR_SIZE,
+                res = ps3av_vuart_read(ps3av->dev, recv_buf, PS3AV_HDR_SIZE,
                                        timeout);
                 if (res != PS3AV_HDR_SIZE) {
-                        dev_dbg(&ps3av_dev.core,
+                        dev_dbg(&ps3av->dev->core,
                                 "%s: ps3av_vuart_read() failed (result=%d)\n",
                                 __func__, res);
                         return res;
                 }
 
                 /* read body */
-                res = ps3av_vuart_read(ps3av.dev, &recv_buf->cid,
+                res = ps3av_vuart_read(ps3av->dev, &recv_buf->cid,
                                        recv_buf->size, timeout);
                 if (res < 0) {
-                        dev_dbg(&ps3av_dev.core,
+                        dev_dbg(&ps3av->dev->core,
                                 "%s: ps3av_vuart_read() failed (result=%d)\n",
                                 __func__, res);
                         return res;
@@ -230,7 +264,7 @@ static int ps3av_send_cmd_pkt(const struct ps3av_send_hdr *send_buf,
         } while (event);
 
         if ((cmd | PS3AV_REPLY_BIT) != recv_buf->cid) {
-                dev_dbg(&ps3av_dev.core, "%s: reply err (result=%x)\n",
+                dev_dbg(&ps3av->dev->core, "%s: reply err (result=%x)\n",
                         __func__, recv_buf->cid);
                 return -EINVAL;
         }
@@ -245,7 +279,7 @@ static int ps3av_process_reply_packet(struct ps3av_send_hdr *cmd_buf,
         int return_len;
 
         if (recv_buf->version != PS3AV_VERSION) {
-                dev_dbg(&ps3av_dev.core, "reply_packet invalid version:%x\n",
+                dev_dbg(&ps3av->dev->core, "reply_packet invalid version:%x\n",
                         recv_buf->version);
                 return -EFAULT;
         }
@@ -267,16 +301,11 @@ int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
                  struct ps3av_send_hdr *buf)
 {
         int res = 0;
-        static union {
-                struct ps3av_reply_hdr reply_hdr;
-                u8 raw[PS3AV_BUF_SIZE];
-        } recv_buf;
-
         u32 *table;
 
-        BUG_ON(!ps3av.available);
+        BUG_ON(!ps3av);
 
-        mutex_lock(&ps3av.mutex);
+        mutex_lock(&ps3av->mutex);
 
         table = ps3av_search_cmd_table(cid, PS3AV_CID_MASK);
         BUG_ON(!table);
@@ -288,7 +317,7 @@ int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
         ps3av_set_hdr(cid, send_len, buf);
 
         /* send packet via vuart */
-        res = ps3av_send_cmd_pkt(buf, &recv_buf.reply_hdr, send_len,
+        res = ps3av_send_cmd_pkt(buf, &ps3av->recv_buf.reply_hdr, send_len,
                                  usr_buf_size);
         if (res < 0) {
                 printk(KERN_ERR
@@ -298,7 +327,7 @@ int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
         }
 
         /* process reply packet */
-        res = ps3av_process_reply_packet(buf, &recv_buf.reply_hdr,
+        res = ps3av_process_reply_packet(buf, &ps3av->recv_buf.reply_hdr,
                                          usr_buf_size);
         if (res < 0) {
                 printk(KERN_ERR "%s: put_return_status() failed (result=%d)\n",
@@ -306,11 +335,11 @@ int ps3av_do_pkt(u32 cid, u16 send_len, size_t usr_buf_size,
                 goto err;
         }
 
-        mutex_unlock(&ps3av.mutex);
+        mutex_unlock(&ps3av->mutex);
         return 0;
 
       err:
-        mutex_unlock(&ps3av.mutex);
+        mutex_unlock(&ps3av->mutex);
         printk(KERN_ERR "%s: failed cid:%x res:%d\n", __func__, cid, res);
         return res;
 }
@@ -319,11 +348,11 @@ static int ps3av_set_av_video_mute(u32 mute)
 {
         int i, num_of_av_port, res;
 
-        num_of_av_port = ps3av.av_hw_conf.num_of_hdmi +
-                         ps3av.av_hw_conf.num_of_avmulti;
+        num_of_av_port = ps3av->av_hw_conf.num_of_hdmi +
+                         ps3av->av_hw_conf.num_of_avmulti;
         /* video mute on */
         for (i = 0; i < num_of_av_port; i++) {
-                res = ps3av_cmd_av_video_mute(1, &ps3av.av_port[i], mute);
+                res = ps3av_cmd_av_video_mute(1, &ps3av->av_port[i], mute);
                 if (res < 0)
                         return -1;
         }
@@ -335,13 +364,13 @@ static int ps3av_set_video_disable_sig(void)
 {
         int i, num_of_hdmi_port, num_of_av_port, res;
 
-        num_of_hdmi_port = ps3av.av_hw_conf.num_of_hdmi;
-        num_of_av_port = ps3av.av_hw_conf.num_of_hdmi +
-                         ps3av.av_hw_conf.num_of_avmulti;
+        num_of_hdmi_port = ps3av->av_hw_conf.num_of_hdmi;
+        num_of_av_port = ps3av->av_hw_conf.num_of_hdmi +
+                         ps3av->av_hw_conf.num_of_avmulti;
 
         /* tv mute */
         for (i = 0; i < num_of_hdmi_port; i++) {
-                res = ps3av_cmd_av_tv_mute(ps3av.av_port[i],
+                res = ps3av_cmd_av_tv_mute(ps3av->av_port[i],
                                            PS3AV_CMD_MUTE_ON);
                 if (res < 0)
                         return -1;
@@ -350,11 +379,11 @@ static int ps3av_set_video_disable_sig(void)
 
         /* video mute on */
         for (i = 0; i < num_of_av_port; i++) {
-                res = ps3av_cmd_av_video_disable_sig(ps3av.av_port[i]);
+                res = ps3av_cmd_av_video_disable_sig(ps3av->av_port[i]);
                 if (res < 0)
                         return -1;
                 if (i < num_of_hdmi_port) {
-                        res = ps3av_cmd_av_tv_mute(ps3av.av_port[i],
+                        res = ps3av_cmd_av_tv_mute(ps3av->av_port[i],
                                                    PS3AV_CMD_MUTE_OFF);
                         if (res < 0)
                                 return -1;
@@ -369,17 +398,17 @@ static int ps3av_set_audio_mute(u32 mute)
 {
         int i, num_of_av_port, num_of_opt_port, res;
 
-        num_of_av_port = ps3av.av_hw_conf.num_of_hdmi +
-                         ps3av.av_hw_conf.num_of_avmulti;
-        num_of_opt_port = ps3av.av_hw_conf.num_of_spdif;
+        num_of_av_port = ps3av->av_hw_conf.num_of_hdmi +
+                         ps3av->av_hw_conf.num_of_avmulti;
+        num_of_opt_port = ps3av->av_hw_conf.num_of_spdif;
 
         for (i = 0; i < num_of_av_port; i++) {
-                res = ps3av_cmd_av_audio_mute(1, &ps3av.av_port[i], mute);
+                res = ps3av_cmd_av_audio_mute(1, &ps3av->av_port[i], mute);
                 if (res < 0)
                         return -1;
         }
         for (i = 0; i < num_of_opt_port; i++) {
-                res = ps3av_cmd_audio_mute(1, &ps3av.opt_port[i], mute);
+                res = ps3av_cmd_audio_mute(1, &ps3av->opt_port[i], mute);
                 if (res < 0)
                         return -1;
         }
@@ -394,40 +423,40 @@ int ps3av_set_audio_mode(u32 ch, u32 fs, u32 word_bits, u32 format, u32 source)
         struct ps3av_pkt_audio_mode audio_mode;
         u32 len = 0;
 
-        num_of_audio = ps3av.av_hw_conf.num_of_hdmi +
-                       ps3av.av_hw_conf.num_of_avmulti +
-                       ps3av.av_hw_conf.num_of_spdif;
+        num_of_audio = ps3av->av_hw_conf.num_of_hdmi +
+                       ps3av->av_hw_conf.num_of_avmulti +
+                       ps3av->av_hw_conf.num_of_spdif;
 
         avb_param.num_of_video_pkt = 0;
         avb_param.num_of_audio_pkt = PS3AV_AVB_NUM_AUDIO;       /* always 0 */
         avb_param.num_of_av_video_pkt = 0;
-        avb_param.num_of_av_audio_pkt = ps3av.av_hw_conf.num_of_hdmi;
+        avb_param.num_of_av_audio_pkt = ps3av->av_hw_conf.num_of_hdmi;
 
-        vid = video_mode_table[ps3av.ps3av_mode].vid;
+        vid = video_mode_table[ps3av->ps3av_mode].vid;
 
         /* audio mute */
         ps3av_set_audio_mute(PS3AV_CMD_MUTE_ON);
 
         /* audio inactive */
-        res = ps3av_cmd_audio_active(0, ps3av.audio_port);
+        res = ps3av_cmd_audio_active(0, ps3av->audio_port);
         if (res < 0)
-                dev_dbg(&ps3av_dev.core,
+                dev_dbg(&ps3av->dev->core,
                         "ps3av_cmd_audio_active OFF failed\n");
 
         /* audio_pkt */
         for (i = 0; i < num_of_audio; i++) {
-                ps3av_cmd_set_audio_mode(&audio_mode, ps3av.av_port[i], ch, fs,
-                                         word_bits, format, source);
-                if (i < ps3av.av_hw_conf.num_of_hdmi) {
+                ps3av_cmd_set_audio_mode(&audio_mode, ps3av->av_port[i], ch,
+                                         fs, word_bits, format, source);
+                if (i < ps3av->av_hw_conf.num_of_hdmi) {
                         /* hdmi only */
                         len += ps3av_cmd_set_av_audio_param(&avb_param.buf[len],
-                                                            ps3av.av_port[i],
+                                                            ps3av->av_port[i],
                                                             &audio_mode, vid);
                 }
                 /* audio_mode pkt should be sent separately */
                 res = ps3av_cmd_audio_mode(&audio_mode);
                 if (res < 0)
-                        dev_dbg(&ps3av_dev.core,
+                        dev_dbg(&ps3av->dev->core,
                                 "ps3av_cmd_audio_mode failed, port:%x\n", i);
         }
 
@@ -435,15 +464,16 @@ int ps3av_set_audio_mode(u32 ch, u32 fs, u32 word_bits, u32 format, u32 source)
         len += offsetof(struct ps3av_pkt_avb_param, buf);
         res = ps3av_cmd_avb_param(&avb_param, len);
         if (res < 0)
-                dev_dbg(&ps3av_dev.core, "ps3av_cmd_avb_param failed\n");
+                dev_dbg(&ps3av->dev->core, "ps3av_cmd_avb_param failed\n");
 
         /* audio mute */
         ps3av_set_audio_mute(PS3AV_CMD_MUTE_OFF);
 
         /* audio active */
-        res = ps3av_cmd_audio_active(1, ps3av.audio_port);
+        res = ps3av_cmd_audio_active(1, ps3av->audio_port);
         if (res < 0)
-                dev_dbg(&ps3av_dev.core, "ps3av_cmd_audio_active ON failed\n");
+                dev_dbg(&ps3av->dev->core,
+                        "ps3av_cmd_audio_active ON failed\n");
 
         return 0;
 }
@@ -456,7 +486,7 @@ static int ps3av_set_videomode(void)
         ps3av_set_av_video_mute(PS3AV_CMD_MUTE_ON);
 
         /* wake up ps3avd to do the actual video mode setting */
-        queue_work(ps3av.wq, &ps3av.work);
+        queue_work(ps3av->wq, &ps3av->work);
 
         return 0;
 }
@@ -473,8 +503,8 @@ static void ps3av_set_videomode_cont(u32 id, u32 old_id)
 
         avb_param.num_of_video_pkt = PS3AV_AVB_NUM_VIDEO;       /* num of head */
         avb_param.num_of_audio_pkt = 0;
-        avb_param.num_of_av_video_pkt = ps3av.av_hw_conf.num_of_hdmi +
-                                        ps3av.av_hw_conf.num_of_avmulti;
+        avb_param.num_of_av_video_pkt = ps3av->av_hw_conf.num_of_hdmi +
+                                        ps3av->av_hw_conf.num_of_avmulti;
         avb_param.num_of_av_audio_pkt = 0;
 
         /* video signal off */
@@ -484,21 +514,21 @@ static void ps3av_set_videomode_cont(u32 id, u32 old_id)
         if (id & PS3AV_MODE_HDCP_OFF) {
                 res = ps3av_cmd_av_hdmi_mode(PS3AV_CMD_AV_HDMI_HDCP_OFF);
                 if (res == PS3AV_STATUS_UNSUPPORTED_HDMI_MODE)
-                        dev_dbg(&ps3av_dev.core, "Not supported\n");
+                        dev_dbg(&ps3av->dev->core, "Not supported\n");
                 else if (res)
-                        dev_dbg(&ps3av_dev.core,
+                        dev_dbg(&ps3av->dev->core,
                                 "ps3av_cmd_av_hdmi_mode failed\n");
         } else if (old_id & PS3AV_MODE_HDCP_OFF) {
                 res = ps3av_cmd_av_hdmi_mode(PS3AV_CMD_AV_HDMI_MODE_NORMAL);
                 if (res < 0 && res != PS3AV_STATUS_UNSUPPORTED_HDMI_MODE)
-                        dev_dbg(&ps3av_dev.core,
+                        dev_dbg(&ps3av->dev->core,
                                 "ps3av_cmd_av_hdmi_mode failed\n");
         }
 
         /* video_pkt */
         for (i = 0; i < avb_param.num_of_video_pkt; i++)
                 len += ps3av_cmd_set_video_mode(&avb_param.buf[len],
-                                                ps3av.head[i], video_mode->vid,
+                                                ps3av->head[i], video_mode->vid,
                                                 video_mode->fmt, id);
         /* av_video_pkt */
         for (i = 0; i < avb_param.num_of_av_video_pkt; i++) {
@@ -507,12 +537,12 @@ static void ps3av_set_videomode_cont(u32 id, u32 old_id)
                 else
                         av_video_cs = video_mode->cs;
 #ifndef PS3AV_HDMI_YUV
-                if (ps3av.av_port[i] == PS3AV_CMD_AVPORT_HDMI_0 ||
-                    ps3av.av_port[i] == PS3AV_CMD_AVPORT_HDMI_1)
+                if (ps3av->av_port[i] == PS3AV_CMD_AVPORT_HDMI_0 ||
+                    ps3av->av_port[i] == PS3AV_CMD_AVPORT_HDMI_1)
                         av_video_cs = RGB8;     /* use RGB for HDMI */
 #endif
                 len += ps3av_cmd_set_av_video_cs(&avb_param.buf[len],
-                                                 ps3av.av_port[i],
+                                                 ps3av->av_port[i],
                                                  video_mode->vid, av_video_cs,
                                                  video_mode->aspect, id);
         }
@@ -524,7 +554,7 @@ static void ps3av_set_videomode_cont(u32 id, u32 old_id)
                        "%s: Command failed. Please try your request again. \n",
                        __func__);
         else if (res)
-                dev_dbg(&ps3av_dev.core, "ps3av_cmd_avb_param failed\n");
+                dev_dbg(&ps3av->dev->core, "ps3av_cmd_avb_param failed\n");
 
         msleep(1500);
         /* av video mute */
@@ -533,8 +563,8 @@ static void ps3av_set_videomode_cont(u32 id, u32 old_id)
 
 static void ps3avd(struct work_struct *work)
 {
-        ps3av_set_videomode_cont(ps3av.ps3av_mode, ps3av.ps3av_mode_old);
-        complete(&ps3av.done);
+        ps3av_set_videomode_cont(ps3av->ps3av_mode, ps3av->ps3av_mode_old);
+        complete(&ps3av->done);
 }
 
 static int ps3av_vid2table_id(int vid)
@@ -601,7 +631,7 @@ static int ps3av_hdmi_get_vid(struct ps3av_info_monitor *info)
                 return vid;
         }
 
-        if (ps3av.region & PS3AV_REGION_60)
+        if (ps3av->region & PS3AV_REGION_60)
                 vid = PS3AV_DEFAULT_HDMI_VID_REG_60;
         else
                 vid = PS3AV_DEFAULT_HDMI_VID_REG_50;
@@ -643,16 +673,16 @@ static int ps3av_auto_videomode(struct ps3av_pkt_av_get_hw_conf *av_hw_conf,
                 vid = PS3AV_DEFAULT_DVI_VID;
         } else if (vid == -1) {
                 /* no HDMI interface or HDMI is off */
-                if (ps3av.region & PS3AV_REGION_60)
+                if (ps3av->region & PS3AV_REGION_60)
                         vid = PS3AV_DEFAULT_AVMULTI_VID_REG_60;
                 else
                         vid = PS3AV_DEFAULT_AVMULTI_VID_REG_50;
-                if (ps3av.region & PS3AV_REGION_RGB)
+                if (ps3av->region & PS3AV_REGION_RGB)
                         rgb = PS3AV_MODE_RGB;
         } else if (boot) {
                 /* HDMI: using DEFAULT HDMI_VID while booting up */
                 info = &monitor_info.info;
-                if (ps3av.region & PS3AV_REGION_60) {
+                if (ps3av->region & PS3AV_REGION_60) {
                         if (info->res_60.res_bits & PS3AV_RESBIT_720x480P)
                                 vid = PS3AV_DEFAULT_HDMI_VID_REG_60;
                         else if (info->res_50.res_bits & PS3AV_RESBIT_720x576P)
@@ -715,14 +745,14 @@ int ps3av_set_video_mode(u32 id, int boot)
 
         size = ARRAY_SIZE(video_mode_table);
         if ((id & PS3AV_MODE_MASK) > size - 1 || id < 0) {
-                dev_dbg(&ps3av_dev.core, "%s: error id :%d\n", __func__, id);
+                dev_dbg(&ps3av->dev->core, "%s: error id :%d\n", __func__, id);
                 return -EINVAL;
         }
 
         /* auto mode */
         option = id & ~PS3AV_MODE_MASK;
         if ((id & PS3AV_MODE_MASK) == 0) {
-                id = ps3av_auto_videomode(&ps3av.av_hw_conf, boot);
+                id = ps3av_auto_videomode(&ps3av->av_hw_conf, boot);
                 if (id < 1) {
                         printk(KERN_ERR "%s: invalid id :%d\n", __func__, id);
                         return -EINVAL;
@@ -731,11 +761,11 @@ int ps3av_set_video_mode(u32 id, int boot)
         }
 
         /* set videomode */
-        wait_for_completion(&ps3av.done);
-        ps3av.ps3av_mode_old = ps3av.ps3av_mode;
-        ps3av.ps3av_mode = id;
+        wait_for_completion(&ps3av->done);
+        ps3av->ps3av_mode_old = ps3av->ps3av_mode;
+        ps3av->ps3av_mode = id;
         if (ps3av_set_videomode())
-                ps3av.ps3av_mode = ps3av.ps3av_mode_old;
+                ps3av->ps3av_mode = ps3av->ps3av_mode_old;
 
         return 0;
 }
@@ -744,7 +774,7 @@ EXPORT_SYMBOL_GPL(ps3av_set_video_mode);
 
 int ps3av_get_auto_mode(int boot)
 {
-        return ps3av_auto_videomode(&ps3av.av_hw_conf, boot);
+        return ps3av_auto_videomode(&ps3av->av_hw_conf, boot);
 }
 
 EXPORT_SYMBOL_GPL(ps3av_get_auto_mode);
@@ -772,7 +802,7 @@ EXPORT_SYMBOL_GPL(ps3av_set_mode);
 
 int ps3av_get_mode(void)
 {
-        return ps3av.ps3av_mode;
+        return ps3av ? ps3av->ps3av_mode : 0;
 }
 
 EXPORT_SYMBOL_GPL(ps3av_get_mode);
@@ -842,82 +872,65 @@ int ps3av_audio_mute(int mute)
 
 EXPORT_SYMBOL_GPL(ps3av_audio_mute);
 
-int ps3av_dev_open(void)
+void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data),
+                             void *flip_data)
 {
-        int status = 0;
-
-        mutex_lock(&ps3av.mutex);
-        if (!ps3av.open_count++) {
-                status = lv1_gpu_open(0);
-                if (status) {
-                        printk(KERN_ERR "%s: lv1_gpu_open failed %d\n",
-                               __func__, status);
-                        ps3av.open_count--;
-                }
-        }
-        mutex_unlock(&ps3av.mutex);
-
-        return status;
+        mutex_lock(&ps3av->mutex);
+        ps3av->flip_ctl = flip_ctl;
+        ps3av->flip_data = flip_data;
+        mutex_unlock(&ps3av->mutex);
 }
+EXPORT_SYMBOL_GPL(ps3av_register_flip_ctl);
 
-EXPORT_SYMBOL_GPL(ps3av_dev_open);
-
-int ps3av_dev_close(void)
+void ps3av_flip_ctl(int on)
 {
-        int status = 0;
-
-        mutex_lock(&ps3av.mutex);
-        if (ps3av.open_count <= 0) {
-                printk(KERN_ERR "%s: GPU already closed\n", __func__);
-                status = -1;
-        } else if (!--ps3av.open_count) {
-                status = lv1_gpu_close();
-                if (status)
-                        printk(KERN_WARNING "%s: lv1_gpu_close failed %d\n",
-                               __func__, status);
-        }
-        mutex_unlock(&ps3av.mutex);
-
-        return status;
+        mutex_lock(&ps3av->mutex);
+        if (ps3av->flip_ctl)
+                ps3av->flip_ctl(on, ps3av->flip_data);
+        mutex_unlock(&ps3av->mutex);
 }
 
-EXPORT_SYMBOL_GPL(ps3av_dev_close);
-
-static int ps3av_probe(struct ps3_vuart_port_device *dev)
+static int ps3av_probe(struct ps3_system_bus_device *dev)
 {
         int res;
         u32 id;
 
-        dev_dbg(&ps3av_dev.core, "init ...\n");
-        dev_dbg(&ps3av_dev.core, "  timeout=%d\n", timeout);
+        dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
+        dev_dbg(&dev->core, "  timeout=%d\n", timeout);
 
-        memset(&ps3av, 0, sizeof(ps3av));
-
-        mutex_init(&ps3av.mutex);
-        ps3av.ps3av_mode = 0;
-        ps3av.dev = dev;
+        if (ps3av) {
+                dev_err(&dev->core, "Only one ps3av device is supported\n");
+                return -EBUSY;
+        }
 
-        INIT_WORK(&ps3av.work, ps3avd);
-        init_completion(&ps3av.done);
-        complete(&ps3av.done);
-        ps3av.wq = create_singlethread_workqueue("ps3avd");
-        if (!ps3av.wq)
+        ps3av = kzalloc(sizeof(*ps3av), GFP_KERNEL);
+        if (!ps3av)
                 return -ENOMEM;
 
-        ps3av.available = 1;
+        mutex_init(&ps3av->mutex);
+        ps3av->ps3av_mode = 0;
+        ps3av->dev = dev;
+
+        INIT_WORK(&ps3av->work, ps3avd);
+        init_completion(&ps3av->done);
+        complete(&ps3av->done);
+        ps3av->wq = create_singlethread_workqueue("ps3avd");
+        if (!ps3av->wq)
+                goto fail;
+
         switch (ps3_os_area_get_av_multi_out()) {
         case PS3_PARAM_AV_MULTI_OUT_NTSC:
-                ps3av.region = PS3AV_REGION_60;
+                ps3av->region = PS3AV_REGION_60;
                 break;
         case PS3_PARAM_AV_MULTI_OUT_PAL_YCBCR:
         case PS3_PARAM_AV_MULTI_OUT_SECAM:
-                ps3av.region = PS3AV_REGION_50;
+                ps3av->region = PS3AV_REGION_50;
                 break;
         case PS3_PARAM_AV_MULTI_OUT_PAL_RGB:
-                ps3av.region = PS3AV_REGION_50 | PS3AV_REGION_RGB;
+                ps3av->region = PS3AV_REGION_50 | PS3AV_REGION_RGB;
                 break;
         default:
-                ps3av.region = PS3AV_REGION_60;
+                ps3av->region = PS3AV_REGION_60;
                 break;
         }
 
@@ -927,39 +940,47 @@ static int ps3av_probe(struct ps3_vuart_port_device *dev)
                 printk(KERN_ERR "%s: ps3av_cmd_init failed %d\n", __func__,
                        res);
 
-        ps3av_get_hw_conf(&ps3av);
-        id = ps3av_auto_videomode(&ps3av.av_hw_conf, 1);
-        mutex_lock(&ps3av.mutex);
-        ps3av.ps3av_mode = id;
-        mutex_unlock(&ps3av.mutex);
+        ps3av_get_hw_conf(ps3av);
+        id = ps3av_auto_videomode(&ps3av->av_hw_conf, 1);
+        mutex_lock(&ps3av->mutex);
+        ps3av->ps3av_mode = id;
+        mutex_unlock(&ps3av->mutex);
 
-        dev_dbg(&ps3av_dev.core, "init...done\n");
+        dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
 
         return 0;
+
+fail:
+        kfree(ps3av);
+        ps3av = NULL;
+        return -ENOMEM;
 }
 
-static int ps3av_remove(struct ps3_vuart_port_device *dev)
+static int ps3av_remove(struct ps3_system_bus_device *dev)
 {
-        if (ps3av.available) {
+        dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
+        if (ps3av) {
                 ps3av_cmd_fin();
-                if (ps3av.wq)
-                        destroy_workqueue(ps3av.wq);
-                ps3av.available = 0;
+                if (ps3av->wq)
+                        destroy_workqueue(ps3av->wq);
+                kfree(ps3av);
+                ps3av = NULL;
         }
 
+        dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
         return 0;
 }
 
-static void ps3av_shutdown(struct ps3_vuart_port_device *dev)
+static void ps3av_shutdown(struct ps3_system_bus_device *dev)
 {
+        dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
         ps3av_remove(dev);
+        dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
 }
 
 static struct ps3_vuart_port_driver ps3av_driver = {
-        .match_id = PS3_MATCH_ID_AV_SETTINGS,
-        .core = {
-                .name = "ps3_av",
-        },
+        .core.match_id = PS3_MATCH_ID_AV_SETTINGS,
+        .core.core.name = "ps3_av",
         .probe = ps3av_probe,
         .remove = ps3av_remove,
         .shutdown = ps3av_shutdown,
@@ -972,6 +993,8 @@ static int ps3av_module_init(void)
         if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
                 return -ENODEV;
 
+        pr_debug(" -> %s:%d\n", __func__, __LINE__);
+
         error = ps3_vuart_port_driver_register(&ps3av_driver);
         if (error) {
                 printk(KERN_ERR
@@ -980,20 +1003,21 @@ static int ps3av_module_init(void)
                 return error;
         }
 
-        error = ps3_vuart_port_device_register(&ps3av_dev);
-        if (error)
-                printk(KERN_ERR
-                       "%s: ps3_vuart_port_device_register failed %d\n",
-                       __func__, error);
-
+        pr_debug(" <- %s:%d\n", __func__, __LINE__);
         return error;
 }
 
 static void __exit ps3av_module_exit(void)
 {
-        device_unregister(&ps3av_dev.core);
+        pr_debug(" -> %s:%d\n", __func__, __LINE__);
         ps3_vuart_port_driver_unregister(&ps3av_driver);
+        pr_debug(" <- %s:%d\n", __func__, __LINE__);
 }
 
 subsys_initcall(ps3av_module_init);
 module_exit(ps3av_module_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("PS3 AV Settings Driver");
+MODULE_AUTHOR("Sony Computer Entertainment Inc.");
+MODULE_ALIAS(PS3_MODULE_ALIAS_AV_SETTINGS);
diff --git a/drivers/ps3/ps3av_cmd.c b/drivers/ps3/ps3av_cmd.c
index 7c4fb264dda2..f72f5ddf18e4 100644
--- a/drivers/ps3/ps3av_cmd.c
+++ b/drivers/ps3/ps3av_cmd.c
@@ -868,7 +868,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
 {
         int res;
 
-        ps3fb_flip_ctl(0);      /* flip off */
+        ps3av_flip_ctl(0);      /* flip off */
 
         /* avb packet */
         res = ps3av_do_pkt(PS3AV_CID_AVB_PARAM, send_len, sizeof(*avb),
@@ -882,7 +882,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
                          res);
 
       out:
-        ps3fb_flip_ctl(1);      /* flip on */
+        ps3av_flip_ctl(1);      /* flip on */
         return res;
 }
 
@@ -1003,34 +1003,3 @@ void ps3av_cmd_av_monitor_info_dump(const struct ps3av_pkt_av_get_monitor_info *
                 | PS3AV_CMD_AV_LAYOUT_176 \
                 | PS3AV_CMD_AV_LAYOUT_192)
 
-/************************* vuart ***************************/
-
-#define POLLING_INTERVAL  25    /* in msec */
-
-int ps3av_vuart_write(struct ps3_vuart_port_device *dev, const void *buf,
-                      unsigned long size)
-{
-        int error = ps3_vuart_write(dev, buf, size);
-        return error ? error : size;
-}
-
-int ps3av_vuart_read(struct ps3_vuart_port_device *dev, void *buf,
-                     unsigned long size, int timeout)
-{
-        int error;
-        int loopcnt = 0;
-
-        timeout = (timeout + POLLING_INTERVAL - 1) / POLLING_INTERVAL;
-        while (loopcnt++ <= timeout) {
-                error = ps3_vuart_read(dev, buf, size);
-                if (!error)
-                        return size;
-                if (error != -EAGAIN) {
-                        printk(KERN_ERR "%s: ps3_vuart_read failed %d\n",
-                               __func__, error);
-                        return error;
-                }
-                msleep(POLLING_INTERVAL);
-        }
-        return -EWOULDBLOCK;
-}
diff --git a/include/asm-powerpc/ps3av.h b/include/asm-powerpc/ps3av.h
index 7f5948efca9b..7df4250802de 100644
--- a/include/asm-powerpc/ps3av.h
+++ b/include/asm-powerpc/ps3av.h
@@ -1,20 +1,23 @@
 /*
- * Copyright (C) 2006 Sony Computer Entertainment Inc.
- * Copyright 2006, 2007 Sony Corporation
+ *  PS3 AV backend support.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published
- * by the Free Software Foundation; version 2 of the License.
+ *  Copyright (C) 2007 Sony Computer Entertainment Inc.
+ *  Copyright 2007 Sony Corp.
  *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
  *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+
 #ifndef _ASM_POWERPC_PS3AV_H_
 #define _ASM_POWERPC_PS3AV_H_
 
@@ -704,12 +707,6 @@ static inline void ps3av_cmd_av_monitor_info_dump(const struct ps3av_pkt_av_get_
 extern int ps3av_cmd_video_get_monitor_info(struct ps3av_pkt_av_get_monitor_info *,
                                             u32);
 
-struct ps3_vuart_port_device;
-extern int ps3av_vuart_write(struct ps3_vuart_port_device *dev,
-                             const void *buf, unsigned long size);
-extern int ps3av_vuart_read(struct ps3_vuart_port_device *dev, void *buf,
-                            unsigned long size, int timeout);
-
 extern int ps3av_set_video_mode(u32, int);
 extern int ps3av_set_audio_mode(u32, u32, u32, u32, u32);
 extern int ps3av_get_auto_mode(int);
@@ -722,5 +719,8 @@ extern int ps3av_video_mute(int);
 extern int ps3av_audio_mute(int);
 extern int ps3av_dev_open(void);
 extern int ps3av_dev_close(void);
+extern void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data),
+                                    void *flip_data);
+extern void ps3av_flip_ctl(int on);
 
 #endif  /* _ASM_POWERPC_PS3AV_H_ */