Staging: add MSM framebuffer driver

Qualcomm development of the MSM SOC framebuffer driver has
diverged significantly from the driver used by Android. This
is a snapshot of our current driver, in all it's agony. We are
putting this in staging to help with the process of converging
the two drivers.

At this point, the driver has been tested only in dumb
framebuffer mode.

Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
[dwalker@codeaurora.org: added a small compile fix and TODO.]
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 163 insertions, 0 deletions

diff --git a/drivers/staging/msm/tv_ntsc.c b/drivers/staging/msm/tv_ntsc.c
new file mode 100644
index 00000000000..5eb67611661
--- /dev/null
+++ b/drivers/staging/msm/tv_ntsc.c
@@ -0,0 +1,163 @@
+/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/time.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <mach/hardware.h>
+#include <linux/io.h>
+
+#include <asm/system.h>
+#include <asm/mach-types.h>
+#include <linux/semaphore.h>
+#include <linux/uaccess.h>
+#include <linux/clk.h>
+
+#include "msm_fb.h"
+#include "tvenc.h"
+
+#define NTSC_TV_DIMENSION_WIDTH      720
+#define NTSC_TV_DIMENSION_HEIGHT     480
+
+static int ntsc_off(struct platform_device *pdev);
+static int ntsc_on(struct platform_device *pdev);
+
+static int ntsc_on(struct platform_device *pdev)
+{
+        uint32 reg = 0;
+        int ret = 0;
+        struct msm_fb_data_type *mfd;
+
+        mfd = platform_get_drvdata(pdev);
+
+        if (!mfd)
+                return -ENODEV;
+
+        if (mfd->key != MFD_KEY)
+                return -EINVAL;
+
+        TV_OUT(TV_ENC_CTL, 0);  /* disable TV encoder */
+
+        if (mfd->panel.id == NTSC_M) {
+                /* Cr gain 11, Cb gain C6, y_gain 97 */
+                TV_OUT(TV_GAIN, 0x0081B697);
+        } else {
+                /* Cr gain 11, Cb gain C6, y_gain 97 */
+                TV_OUT(TV_GAIN, 0x008bc4a3);
+                reg |= TVENC_CTL_NTSCJ_MODE;
+        }
+
+        TV_OUT(TV_CGMS, 0x0);
+        /*  NTSC Timing */
+        TV_OUT(TV_SYNC_1, 0x0020009e);
+        TV_OUT(TV_SYNC_2, 0x011306B4);
+        TV_OUT(TV_SYNC_3, 0x0006000C);
+        TV_OUT(TV_SYNC_4, 0x0028020D);
+        TV_OUT(TV_SYNC_5, 0x005E02FB);
+        TV_OUT(TV_SYNC_6, 0x0006000C);
+        TV_OUT(TV_SYNC_7, 0x00000012);
+        TV_OUT(TV_BURST_V1, 0x0013020D);
+        TV_OUT(TV_BURST_V2, 0x0014020C);
+        TV_OUT(TV_BURST_V3, 0x0013020D);
+        TV_OUT(TV_BURST_V4, 0x0014020C);
+        TV_OUT(TV_BURST_H, 0x00AE00F2);
+        TV_OUT(TV_SOL_REQ_ODD, 0x00280208);
+        TV_OUT(TV_SOL_REQ_EVEN, 0x00290209);
+
+        reg |= TVENC_CTL_TV_MODE_NTSC_M_PAL60;
+
+        reg |= TVENC_CTL_Y_FILTER_EN |
+            TVENC_CTL_CR_FILTER_EN |
+            TVENC_CTL_CB_FILTER_EN | TVENC_CTL_SINX_FILTER_EN;
+#ifdef CONFIG_FB_MSM_TVOUT_SVIDEO
+        reg |= TVENC_CTL_S_VIDEO_EN;
+#endif
+
+        TV_OUT(TV_LEVEL, 0x00000000);   /* DC offset to 0. */
+        TV_OUT(TV_OFFSET, 0x008080f0);
+
+#ifdef CONFIG_FB_MSM_MDP31
+        TV_OUT(TV_DAC_INTF, 0x29);
+#endif
+        TV_OUT(TV_ENC_CTL, reg);
+
+        reg |= TVENC_CTL_ENC_EN;
+        TV_OUT(TV_ENC_CTL, reg);
+
+        return ret;
+}
+
+static int ntsc_off(struct platform_device *pdev)
+{
+        TV_OUT(TV_ENC_CTL, 0);  /* disable TV encoder */
+        return 0;
+}
+
+static int __init ntsc_probe(struct platform_device *pdev)
+{
+        msm_fb_add_device(pdev);
+
+        return 0;
+}
+
+static struct platform_driver this_driver = {
+        .probe  = ntsc_probe,
+        .driver = {
+                .name   = "tv_ntsc",
+        },
+};
+
+static struct msm_fb_panel_data ntsc_panel_data = {
+        .panel_info.xres = NTSC_TV_DIMENSION_WIDTH,
+        .panel_info.yres = NTSC_TV_DIMENSION_HEIGHT,
+        .panel_info.type = TV_PANEL,
+        .panel_info.pdest = DISPLAY_1,
+        .panel_info.wait_cycle = 0,
+        .panel_info.bpp = 16,
+        .panel_info.fb_num = 2,
+        .on = ntsc_on,
+        .off = ntsc_off,
+};
+
+static struct platform_device this_device = {
+        .name   = "tv_ntsc",
+        .id     = 0,
+        .dev    = {
+                .platform_data = &ntsc_panel_data,
+        }
+};
+
+static int __init ntsc_init(void)
+{
+        int ret;
+
+        ret = platform_driver_register(&this_driver);
+        if (!ret) {
+                ret = platform_device_register(&this_device);
+                if (ret)
+                        platform_driver_unregister(&this_driver);
+        }
+
+        return ret;
+}
+
+module_init(ntsc_init);
\ No newline at end of file