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path: root/drivers/video/fbdev/matrox/matroxfb_g450.c
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Diffstat (limited to 'drivers/video/fbdev/matrox/matroxfb_g450.c')
-rw-r--r--drivers/video/fbdev/matrox/matroxfb_g450.c640
1 files changed, 640 insertions, 0 deletions
diff --git a/drivers/video/fbdev/matrox/matroxfb_g450.c b/drivers/video/fbdev/matrox/matroxfb_g450.c
new file mode 100644
index 000000000000..cff0546ea6fd
--- /dev/null
+++ b/drivers/video/fbdev/matrox/matroxfb_g450.c
@@ -0,0 +1,640 @@
+/*
+ *
+ * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450.
+ *
+ * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
+ *
+ * Portions Copyright (c) 2001 Matrox Graphics Inc.
+ *
+ * Version: 1.65 2002/08/14
+ *
+ * See matroxfb_base.c for contributors.
+ *
+ */
+
+#include "matroxfb_base.h"
+#include "matroxfb_misc.h"
+#include "matroxfb_DAC1064.h"
+#include "g450_pll.h"
+#include <linux/matroxfb.h>
+#include <asm/div64.h>
+
+#include "matroxfb_g450.h"
+
+/* Definition of the various controls */
+struct mctl {
+ struct v4l2_queryctrl desc;
+ size_t control;
+};
+
+#define BLMIN 0xF3
+#define WLMAX 0x3FF
+
+static const struct mctl g450_controls[] =
+{ { { V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER,
+ "brightness",
+ 0, WLMAX-BLMIN, 1, 370-BLMIN,
+ 0,
+ }, offsetof(struct matrox_fb_info, altout.tvo_params.brightness) },
+ { { V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER,
+ "contrast",
+ 0, 1023, 1, 127,
+ 0,
+ }, offsetof(struct matrox_fb_info, altout.tvo_params.contrast) },
+ { { V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER,
+ "saturation",
+ 0, 255, 1, 165,
+ 0,
+ }, offsetof(struct matrox_fb_info, altout.tvo_params.saturation) },
+ { { V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER,
+ "hue",
+ 0, 255, 1, 0,
+ 0,
+ }, offsetof(struct matrox_fb_info, altout.tvo_params.hue) },
+ { { MATROXFB_CID_TESTOUT, V4L2_CTRL_TYPE_BOOLEAN,
+ "test output",
+ 0, 1, 1, 0,
+ 0,
+ }, offsetof(struct matrox_fb_info, altout.tvo_params.testout) },
+};
+
+#define G450CTRLS ARRAY_SIZE(g450_controls)
+
+/* Return: positive number: id found
+ -EINVAL: id not found, return failure
+ -ENOENT: id not found, create fake disabled control */
+static int get_ctrl_id(__u32 v4l2_id) {
+ int i;
+
+ for (i = 0; i < G450CTRLS; i++) {
+ if (v4l2_id < g450_controls[i].desc.id) {
+ if (g450_controls[i].desc.id == 0x08000000) {
+ return -EINVAL;
+ }
+ return -ENOENT;
+ }
+ if (v4l2_id == g450_controls[i].desc.id) {
+ return i;
+ }
+ }
+ return -EINVAL;
+}
+
+static inline int *get_ctrl_ptr(struct matrox_fb_info *minfo, unsigned int idx)
+{
+ return (int*)((char*)minfo + g450_controls[idx].control);
+}
+
+static void tvo_fill_defaults(struct matrox_fb_info *minfo)
+{
+ unsigned int i;
+
+ for (i = 0; i < G450CTRLS; i++) {
+ *get_ctrl_ptr(minfo, i) = g450_controls[i].desc.default_value;
+ }
+}
+
+static int cve2_get_reg(struct matrox_fb_info *minfo, int reg)
+{
+ unsigned long flags;
+ int val;
+
+ matroxfb_DAC_lock_irqsave(flags);
+ matroxfb_DAC_out(minfo, 0x87, reg);
+ val = matroxfb_DAC_in(minfo, 0x88);
+ matroxfb_DAC_unlock_irqrestore(flags);
+ return val;
+}
+
+static void cve2_set_reg(struct matrox_fb_info *minfo, int reg, int val)
+{
+ unsigned long flags;
+
+ matroxfb_DAC_lock_irqsave(flags);
+ matroxfb_DAC_out(minfo, 0x87, reg);
+ matroxfb_DAC_out(minfo, 0x88, val);
+ matroxfb_DAC_unlock_irqrestore(flags);
+}
+
+static void cve2_set_reg10(struct matrox_fb_info *minfo, int reg, int val)
+{
+ unsigned long flags;
+
+ matroxfb_DAC_lock_irqsave(flags);
+ matroxfb_DAC_out(minfo, 0x87, reg);
+ matroxfb_DAC_out(minfo, 0x88, val >> 2);
+ matroxfb_DAC_out(minfo, 0x87, reg + 1);
+ matroxfb_DAC_out(minfo, 0x88, val & 3);
+ matroxfb_DAC_unlock_irqrestore(flags);
+}
+
+static void g450_compute_bwlevel(const struct matrox_fb_info *minfo, int *bl,
+ int *wl)
+{
+ const int b = minfo->altout.tvo_params.brightness + BLMIN;
+ const int c = minfo->altout.tvo_params.contrast;
+
+ *bl = max(b - c, BLMIN);
+ *wl = min(b + c, WLMAX);
+}
+
+static int g450_query_ctrl(void* md, struct v4l2_queryctrl *p) {
+ int i;
+
+ i = get_ctrl_id(p->id);
+ if (i >= 0) {
+ *p = g450_controls[i].desc;
+ return 0;
+ }
+ if (i == -ENOENT) {
+ static const struct v4l2_queryctrl disctrl =
+ { .flags = V4L2_CTRL_FLAG_DISABLED };
+
+ i = p->id;
+ *p = disctrl;
+ p->id = i;
+ sprintf(p->name, "Ctrl #%08X", i);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int g450_set_ctrl(void* md, struct v4l2_control *p) {
+ int i;
+ struct matrox_fb_info *minfo = md;
+
+ i = get_ctrl_id(p->id);
+ if (i < 0) return -EINVAL;
+
+ /*
+ * Check if changed.
+ */
+ if (p->value == *get_ctrl_ptr(minfo, i)) return 0;
+
+ /*
+ * Check limits.
+ */
+ if (p->value > g450_controls[i].desc.maximum) return -EINVAL;
+ if (p->value < g450_controls[i].desc.minimum) return -EINVAL;
+
+ /*
+ * Store new value.
+ */
+ *get_ctrl_ptr(minfo, i) = p->value;
+
+ switch (p->id) {
+ case V4L2_CID_BRIGHTNESS:
+ case V4L2_CID_CONTRAST:
+ {
+ int blacklevel, whitelevel;
+ g450_compute_bwlevel(minfo, &blacklevel, &whitelevel);
+ cve2_set_reg10(minfo, 0x0e, blacklevel);
+ cve2_set_reg10(minfo, 0x1e, whitelevel);
+ }
+ break;
+ case V4L2_CID_SATURATION:
+ cve2_set_reg(minfo, 0x20, p->value);
+ cve2_set_reg(minfo, 0x22, p->value);
+ break;
+ case V4L2_CID_HUE:
+ cve2_set_reg(minfo, 0x25, p->value);
+ break;
+ case MATROXFB_CID_TESTOUT:
+ {
+ unsigned char val = cve2_get_reg(minfo, 0x05);
+ if (p->value) val |= 0x02;
+ else val &= ~0x02;
+ cve2_set_reg(minfo, 0x05, val);
+ }
+ break;
+ }
+
+
+ return 0;
+}
+
+static int g450_get_ctrl(void* md, struct v4l2_control *p) {
+ int i;
+ struct matrox_fb_info *minfo = md;
+
+ i = get_ctrl_id(p->id);
+ if (i < 0) return -EINVAL;
+ p->value = *get_ctrl_ptr(minfo, i);
+ return 0;
+}
+
+struct output_desc {
+ unsigned int h_vis;
+ unsigned int h_f_porch;
+ unsigned int h_sync;
+ unsigned int h_b_porch;
+ unsigned long long int chromasc;
+ unsigned int burst;
+ unsigned int v_total;
+};
+
+static void computeRegs(struct matrox_fb_info *minfo, struct mavenregs *r,
+ struct my_timming *mt, const struct output_desc *outd)
+{
+ u_int32_t chromasc;
+ u_int32_t hlen;
+ u_int32_t hsl;
+ u_int32_t hbp;
+ u_int32_t hfp;
+ u_int32_t hvis;
+ unsigned int pixclock;
+ unsigned long long piic;
+ int mnp;
+ int over;
+
+ r->regs[0x80] = 0x03; /* | 0x40 for SCART */
+
+ hvis = ((mt->HDisplay << 1) + 3) & ~3;
+
+ if (hvis >= 2048) {
+ hvis = 2044;
+ }
+
+ piic = 1000000000ULL * hvis;
+ do_div(piic, outd->h_vis);
+
+ dprintk(KERN_DEBUG "Want %u kHz pixclock\n", (unsigned int)piic);
+
+ mnp = matroxfb_g450_setclk(minfo, piic, M_VIDEO_PLL);
+
+ mt->mnp = mnp;
+ mt->pixclock = g450_mnp2f(minfo, mnp);
+
+ dprintk(KERN_DEBUG "MNP=%08X\n", mnp);
+
+ pixclock = 1000000000U / mt->pixclock;
+
+ dprintk(KERN_DEBUG "Got %u ps pixclock\n", pixclock);
+
+ piic = outd->chromasc;
+ do_div(piic, mt->pixclock);
+ chromasc = piic;
+
+ dprintk(KERN_DEBUG "Chroma is %08X\n", chromasc);
+
+ r->regs[0] = piic >> 24;
+ r->regs[1] = piic >> 16;
+ r->regs[2] = piic >> 8;
+ r->regs[3] = piic >> 0;
+ hbp = (((outd->h_b_porch + pixclock) / pixclock)) & ~1;
+ hfp = (((outd->h_f_porch + pixclock) / pixclock)) & ~1;
+ hsl = (((outd->h_sync + pixclock) / pixclock)) & ~1;
+ hlen = hvis + hfp + hsl + hbp;
+ over = hlen & 0x0F;
+
+ dprintk(KERN_DEBUG "WL: vis=%u, hf=%u, hs=%u, hb=%u, total=%u\n", hvis, hfp, hsl, hbp, hlen);
+
+ if (over) {
+ hfp -= over;
+ hlen -= over;
+ if (over <= 2) {
+ } else if (over < 10) {
+ hfp += 4;
+ hlen += 4;
+ } else {
+ hfp += 16;
+ hlen += 16;
+ }
+ }
+
+ /* maybe cve2 has requirement 800 < hlen < 1184 */
+ r->regs[0x08] = hsl;
+ r->regs[0x09] = (outd->burst + pixclock - 1) / pixclock; /* burst length */
+ r->regs[0x0A] = hbp;
+ r->regs[0x2C] = hfp;
+ r->regs[0x31] = hvis / 8;
+ r->regs[0x32] = hvis & 7;
+
+ dprintk(KERN_DEBUG "PG: vis=%04X, hf=%02X, hs=%02X, hb=%02X, total=%04X\n", hvis, hfp, hsl, hbp, hlen);
+
+ r->regs[0x84] = 1; /* x sync point */
+ r->regs[0x85] = 0;
+ hvis = hvis >> 1;
+ hlen = hlen >> 1;
+
+ dprintk(KERN_DEBUG "hlen=%u hvis=%u\n", hlen, hvis);
+
+ mt->interlaced = 1;
+
+ mt->HDisplay = hvis & ~7;
+ mt->HSyncStart = mt->HDisplay + 8;
+ mt->HSyncEnd = (hlen & ~7) - 8;
+ mt->HTotal = hlen;
+
+ {
+ int upper;
+ unsigned int vtotal;
+ unsigned int vsyncend;
+ unsigned int vdisplay;
+
+ vtotal = mt->VTotal;
+ vsyncend = mt->VSyncEnd;
+ vdisplay = mt->VDisplay;
+ if (vtotal < outd->v_total) {
+ unsigned int yovr = outd->v_total - vtotal;
+
+ vsyncend += yovr >> 1;
+ } else if (vtotal > outd->v_total) {
+ vdisplay = outd->v_total - 4;
+ vsyncend = outd->v_total;
+ }
+ upper = (outd->v_total - vsyncend) >> 1; /* in field lines */
+ r->regs[0x17] = outd->v_total / 4;
+ r->regs[0x18] = outd->v_total & 3;
+ r->regs[0x33] = upper - 1; /* upper blanking */
+ r->regs[0x82] = upper; /* y sync point */
+ r->regs[0x83] = upper >> 8;
+
+ mt->VDisplay = vdisplay;
+ mt->VSyncStart = outd->v_total - 2;
+ mt->VSyncEnd = outd->v_total;
+ mt->VTotal = outd->v_total;
+ }
+}
+
+static void cve2_init_TVdata(int norm, struct mavenregs* data, const struct output_desc** outd) {
+ static const struct output_desc paloutd = {
+ .h_vis = 52148148, // ps
+ .h_f_porch = 1407407, // ps
+ .h_sync = 4666667, // ps
+ .h_b_porch = 5777778, // ps
+ .chromasc = 19042247534182ULL, // 4433618.750 Hz
+ .burst = 2518518, // ps
+ .v_total = 625,
+ };
+ static const struct output_desc ntscoutd = {
+ .h_vis = 52888889, // ps
+ .h_f_porch = 1333333, // ps
+ .h_sync = 4666667, // ps
+ .h_b_porch = 4666667, // ps
+ .chromasc = 15374030659475ULL, // 3579545.454 Hz
+ .burst = 2418418, // ps
+ .v_total = 525, // lines
+ };
+
+ static const struct mavenregs palregs = { {
+ 0x2A, 0x09, 0x8A, 0xCB, /* 00: chroma subcarrier */
+ 0x00,
+ 0x00, /* test */
+ 0xF9, /* modified by code (F9 written...) */
+ 0x00, /* ? not written */
+ 0x7E, /* 08 */
+ 0x44, /* 09 */
+ 0x9C, /* 0A */
+ 0x2E, /* 0B */
+ 0x21, /* 0C */
+ 0x00, /* ? not written */
+// 0x3F, 0x03, /* 0E-0F */
+ 0x3C, 0x03,
+ 0x3C, 0x03, /* 10-11 */
+ 0x1A, /* 12 */
+ 0x2A, /* 13 */
+ 0x1C, 0x3D, 0x14, /* 14-16 */
+ 0x9C, 0x01, /* 17-18 */
+ 0x00, /* 19 */
+ 0xFE, /* 1A */
+ 0x7E, /* 1B */
+ 0x60, /* 1C */
+ 0x05, /* 1D */
+// 0x89, 0x03, /* 1E-1F */
+ 0xAD, 0x03,
+// 0x72, /* 20 */
+ 0xA5,
+ 0x07, /* 21 */
+// 0x72, /* 22 */
+ 0xA5,
+ 0x00, /* 23 */
+ 0x00, /* 24 */
+ 0x00, /* 25 */
+ 0x08, /* 26 */
+ 0x04, /* 27 */
+ 0x00, /* 28 */
+ 0x1A, /* 29 */
+ 0x55, 0x01, /* 2A-2B */
+ 0x26, /* 2C */
+ 0x07, 0x7E, /* 2D-2E */
+ 0x02, 0x54, /* 2F-30 */
+ 0xB0, 0x00, /* 31-32 */
+ 0x14, /* 33 */
+ 0x49, /* 34 */
+ 0x00, /* 35 written multiple times */
+ 0x00, /* 36 not written */
+ 0xA3, /* 37 */
+ 0xC8, /* 38 */
+ 0x22, /* 39 */
+ 0x02, /* 3A */
+ 0x22, /* 3B */
+ 0x3F, 0x03, /* 3C-3D */
+ 0x00, /* 3E written multiple times */
+ 0x00, /* 3F not written */
+ } };
+ static struct mavenregs ntscregs = { {
+ 0x21, 0xF0, 0x7C, 0x1F, /* 00: chroma subcarrier */
+ 0x00,
+ 0x00, /* test */
+ 0xF9, /* modified by code (F9 written...) */
+ 0x00, /* ? not written */
+ 0x7E, /* 08 */
+ 0x43, /* 09 */
+ 0x7E, /* 0A */
+ 0x3D, /* 0B */
+ 0x00, /* 0C */
+ 0x00, /* ? not written */
+ 0x41, 0x00, /* 0E-0F */
+ 0x3C, 0x00, /* 10-11 */
+ 0x17, /* 12 */
+ 0x21, /* 13 */
+ 0x1B, 0x1B, 0x24, /* 14-16 */
+ 0x83, 0x01, /* 17-18 */
+ 0x00, /* 19 */
+ 0x0F, /* 1A */
+ 0x0F, /* 1B */
+ 0x60, /* 1C */
+ 0x05, /* 1D */
+ //0x89, 0x02, /* 1E-1F */
+ 0xC0, 0x02, /* 1E-1F */
+ //0x5F, /* 20 */
+ 0x9C, /* 20 */
+ 0x04, /* 21 */
+ //0x5F, /* 22 */
+ 0x9C, /* 22 */
+ 0x01, /* 23 */
+ 0x02, /* 24 */
+ 0x00, /* 25 */
+ 0x0A, /* 26 */
+ 0x05, /* 27 */
+ 0x00, /* 28 */
+ 0x10, /* 29 */
+ 0xFF, 0x03, /* 2A-2B */
+ 0x24, /* 2C */
+ 0x0F, 0x78, /* 2D-2E */
+ 0x00, 0x00, /* 2F-30 */
+ 0xB2, 0x04, /* 31-32 */
+ 0x14, /* 33 */
+ 0x02, /* 34 */
+ 0x00, /* 35 written multiple times */
+ 0x00, /* 36 not written */
+ 0xA3, /* 37 */
+ 0xC8, /* 38 */
+ 0x15, /* 39 */
+ 0x05, /* 3A */
+ 0x3B, /* 3B */
+ 0x3C, 0x00, /* 3C-3D */
+ 0x00, /* 3E written multiple times */
+ 0x00, /* never written */
+ } };
+
+ if (norm == MATROXFB_OUTPUT_MODE_PAL) {
+ *data = palregs;
+ *outd = &paloutd;
+ } else {
+ *data = ntscregs;
+ *outd = &ntscoutd;
+ }
+ return;
+}
+
+#define LR(x) cve2_set_reg(minfo, (x), m->regs[(x)])
+static void cve2_init_TV(struct matrox_fb_info *minfo,
+ const struct mavenregs *m)
+{
+ int i;
+
+ LR(0x80);
+ LR(0x82); LR(0x83);
+ LR(0x84); LR(0x85);
+
+ cve2_set_reg(minfo, 0x3E, 0x01);
+
+ for (i = 0; i < 0x3E; i++) {
+ LR(i);
+ }
+ cve2_set_reg(minfo, 0x3E, 0x00);
+}
+
+static int matroxfb_g450_compute(void* md, struct my_timming* mt) {
+ struct matrox_fb_info *minfo = md;
+
+ dprintk(KERN_DEBUG "Computing, mode=%u\n", minfo->outputs[1].mode);
+
+ if (mt->crtc == MATROXFB_SRC_CRTC2 &&
+ minfo->outputs[1].mode != MATROXFB_OUTPUT_MODE_MONITOR) {
+ const struct output_desc* outd;
+
+ cve2_init_TVdata(minfo->outputs[1].mode, &minfo->hw.maven, &outd);
+ {
+ int blacklevel, whitelevel;
+ g450_compute_bwlevel(minfo, &blacklevel, &whitelevel);
+ minfo->hw.maven.regs[0x0E] = blacklevel >> 2;
+ minfo->hw.maven.regs[0x0F] = blacklevel & 3;
+ minfo->hw.maven.regs[0x1E] = whitelevel >> 2;
+ minfo->hw.maven.regs[0x1F] = whitelevel & 3;
+
+ minfo->hw.maven.regs[0x20] =
+ minfo->hw.maven.regs[0x22] = minfo->altout.tvo_params.saturation;
+
+ minfo->hw.maven.regs[0x25] = minfo->altout.tvo_params.hue;
+
+ if (minfo->altout.tvo_params.testout) {
+ minfo->hw.maven.regs[0x05] |= 0x02;
+ }
+ }
+ computeRegs(minfo, &minfo->hw.maven, mt, outd);
+ } else if (mt->mnp < 0) {
+ /* We must program clocks before CRTC2, otherwise interlaced mode
+ startup may fail */
+ mt->mnp = matroxfb_g450_setclk(minfo, mt->pixclock, (mt->crtc == MATROXFB_SRC_CRTC1) ? M_PIXEL_PLL_C : M_VIDEO_PLL);
+ mt->pixclock = g450_mnp2f(minfo, mt->mnp);
+ }
+ dprintk(KERN_DEBUG "Pixclock = %u\n", mt->pixclock);
+ return 0;
+}
+
+static int matroxfb_g450_program(void* md) {
+ struct matrox_fb_info *minfo = md;
+
+ if (minfo->outputs[1].mode != MATROXFB_OUTPUT_MODE_MONITOR) {
+ cve2_init_TV(minfo, &minfo->hw.maven);
+ }
+ return 0;
+}
+
+static int matroxfb_g450_verify_mode(void* md, u_int32_t arg) {
+ switch (arg) {
+ case MATROXFB_OUTPUT_MODE_PAL:
+ case MATROXFB_OUTPUT_MODE_NTSC:
+ case MATROXFB_OUTPUT_MODE_MONITOR:
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int g450_dvi_compute(void* md, struct my_timming* mt) {
+ struct matrox_fb_info *minfo = md;
+
+ if (mt->mnp < 0) {
+ mt->mnp = matroxfb_g450_setclk(minfo, mt->pixclock, (mt->crtc == MATROXFB_SRC_CRTC1) ? M_PIXEL_PLL_C : M_VIDEO_PLL);
+ mt->pixclock = g450_mnp2f(minfo, mt->mnp);
+ }
+ return 0;
+}
+
+static struct matrox_altout matroxfb_g450_altout = {
+ .name = "Secondary output",
+ .compute = matroxfb_g450_compute,
+ .program = matroxfb_g450_program,
+ .verifymode = matroxfb_g450_verify_mode,
+ .getqueryctrl = g450_query_ctrl,
+ .getctrl = g450_get_ctrl,
+ .setctrl = g450_set_ctrl,
+};
+
+static struct matrox_altout matroxfb_g450_dvi = {
+ .name = "DVI output",
+ .compute = g450_dvi_compute,
+};
+
+void matroxfb_g450_connect(struct matrox_fb_info *minfo)
+{
+ if (minfo->devflags.g450dac) {
+ down_write(&minfo->altout.lock);
+ tvo_fill_defaults(minfo);
+ minfo->outputs[1].src = minfo->outputs[1].default_src;
+ minfo->outputs[1].data = minfo;
+ minfo->outputs[1].output = &matroxfb_g450_altout;
+ minfo->outputs[1].mode = MATROXFB_OUTPUT_MODE_MONITOR;
+ minfo->outputs[2].src = minfo->outputs[2].default_src;
+ minfo->outputs[2].data = minfo;
+ minfo->outputs[2].output = &matroxfb_g450_dvi;
+ minfo->outputs[2].mode = MATROXFB_OUTPUT_MODE_MONITOR;
+ up_write(&minfo->altout.lock);
+ }
+}
+
+void matroxfb_g450_shutdown(struct matrox_fb_info *minfo)
+{
+ if (minfo->devflags.g450dac) {
+ down_write(&minfo->altout.lock);
+ minfo->outputs[1].src = MATROXFB_SRC_NONE;
+ minfo->outputs[1].output = NULL;
+ minfo->outputs[1].data = NULL;
+ minfo->outputs[1].mode = MATROXFB_OUTPUT_MODE_MONITOR;
+ minfo->outputs[2].src = MATROXFB_SRC_NONE;
+ minfo->outputs[2].output = NULL;
+ minfo->outputs[2].data = NULL;
+ minfo->outputs[2].mode = MATROXFB_OUTPUT_MODE_MONITOR;
+ up_write(&minfo->altout.lock);
+ }
+}
+
+EXPORT_SYMBOL(matroxfb_g450_connect);
+EXPORT_SYMBOL(matroxfb_g450_shutdown);
+
+MODULE_AUTHOR("(c) 2000-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
+MODULE_DESCRIPTION("Matrox G450/G550 output driver");
+MODULE_LICENSE("GPL");
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