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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/video/aty/radeon_base.c
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Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/video/aty/radeon_base.c')
-rw-r--r--drivers/video/aty/radeon_base.c2587
1 files changed, 2587 insertions, 0 deletions
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
new file mode 100644
index 000000000000..e8eb124754b1
--- /dev/null
+++ b/drivers/video/aty/radeon_base.c
@@ -0,0 +1,2587 @@
+/*
+ * drivers/video/aty/radeon_base.c
+ *
+ * framebuffer driver for ATI Radeon chipset video boards
+ *
+ * Copyright 2003 Ben. Herrenschmidt <benh@kernel.crashing.org>
+ * Copyright 2000 Ani Joshi <ajoshi@kernel.crashing.org>
+ *
+ * i2c bits from Luca Tettamanti <kronos@kronoz.cjb.net>
+ *
+ * Special thanks to ATI DevRel team for their hardware donations.
+ *
+ * ...Insert GPL boilerplate here...
+ *
+ * Significant portions of this driver apdated from XFree86 Radeon
+ * driver which has the following copyright notice:
+ *
+ * Copyright 2000 ATI Technologies Inc., Markham, Ontario, and
+ * VA Linux Systems Inc., Fremont, California.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
+ * THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * XFree86 driver authors:
+ *
+ * Kevin E. Martin <martin@xfree86.org>
+ * Rickard E. Faith <faith@valinux.com>
+ * Alan Hourihane <alanh@fairlite.demon.co.uk>
+ *
+ */
+
+
+#define RADEON_VERSION "0.2.0"
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/time.h>
+#include <linux/fb.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#ifdef CONFIG_PPC_OF
+
+#include <asm/pci-bridge.h>
+#include "../macmodes.h"
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+#include <asm/backlight.h>
+#endif
+
+#ifdef CONFIG_BOOTX_TEXT
+#include <asm/btext.h>
+#endif
+
+#endif /* CONFIG_PPC_OF */
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+
+#include <video/radeon.h>
+#include <linux/radeonfb.h>
+
+#include "../edid.h" // MOVE THAT TO include/video
+#include "ati_ids.h"
+#include "radeonfb.h"
+
+#define MAX_MAPPED_VRAM (2048*2048*4)
+#define MIN_MAPPED_VRAM (1024*768*1)
+
+#define CHIP_DEF(id, family, flags) \
+ { PCI_VENDOR_ID_ATI, id, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (flags) | (CHIP_FAMILY_##family) }
+
+static struct pci_device_id radeonfb_pci_table[] = {
+ /* Mobility M6 */
+ CHIP_DEF(PCI_CHIP_RADEON_LY, RV100, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RADEON_LZ, RV100, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ /* Radeon VE/7000 */
+ CHIP_DEF(PCI_CHIP_RV100_QY, RV100, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV100_QZ, RV100, CHIP_HAS_CRTC2),
+ /* Radeon IGP320M (U1) */
+ CHIP_DEF(PCI_CHIP_RS100_4336, RS100, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
+ /* Radeon IGP320 (A3) */
+ CHIP_DEF(PCI_CHIP_RS100_4136, RS100, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
+ /* IGP330M/340M/350M (U2) */
+ CHIP_DEF(PCI_CHIP_RS200_4337, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
+ /* IGP330/340/350 (A4) */
+ CHIP_DEF(PCI_CHIP_RS200_4137, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
+ /* Mobility 7000 IGP */
+ CHIP_DEF(PCI_CHIP_RS250_4437, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
+ /* 7000 IGP (A4+) */
+ CHIP_DEF(PCI_CHIP_RS250_4237, RS200, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
+ /* 8500 AIW */
+ CHIP_DEF(PCI_CHIP_R200_BB, R200, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R200_BC, R200, CHIP_HAS_CRTC2),
+ /* 8700/8800 */
+ CHIP_DEF(PCI_CHIP_R200_QH, R200, CHIP_HAS_CRTC2),
+ /* 8500 */
+ CHIP_DEF(PCI_CHIP_R200_QL, R200, CHIP_HAS_CRTC2),
+ /* 9100 */
+ CHIP_DEF(PCI_CHIP_R200_QM, R200, CHIP_HAS_CRTC2),
+ /* Mobility M7 */
+ CHIP_DEF(PCI_CHIP_RADEON_LW, RV200, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RADEON_LX, RV200, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ /* 7500 */
+ CHIP_DEF(PCI_CHIP_RV200_QW, RV200, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV200_QX, RV200, CHIP_HAS_CRTC2),
+ /* Mobility M9 */
+ CHIP_DEF(PCI_CHIP_RV250_Ld, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV250_Le, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV250_Lf, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV250_Lg, RV250, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ /* 9000/Pro */
+ CHIP_DEF(PCI_CHIP_RV250_If, RV250, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV250_Ig, RV250, CHIP_HAS_CRTC2),
+ /* Mobility 9100 IGP (U3) */
+ CHIP_DEF(PCI_CHIP_RS300_5835, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RS350_7835, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
+ /* 9100 IGP (A5) */
+ CHIP_DEF(PCI_CHIP_RS300_5834, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
+ CHIP_DEF(PCI_CHIP_RS350_7834, RS300, CHIP_HAS_CRTC2 | CHIP_IS_IGP),
+ /* Mobility 9200 (M9+) */
+ CHIP_DEF(PCI_CHIP_RV280_5C61, RV280, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV280_5C63, RV280, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ /* 9200 */
+ CHIP_DEF(PCI_CHIP_RV280_5960, RV280, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV280_5961, RV280, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV280_5962, RV280, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV280_5964, RV280, CHIP_HAS_CRTC2),
+ /* 9500 */
+ CHIP_DEF(PCI_CHIP_R300_AD, R300, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R300_AE, R300, CHIP_HAS_CRTC2),
+ /* 9600TX / FireGL Z1 */
+ CHIP_DEF(PCI_CHIP_R300_AF, R300, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R300_AG, R300, CHIP_HAS_CRTC2),
+ /* 9700/9500/Pro/FireGL X1 */
+ CHIP_DEF(PCI_CHIP_R300_ND, R300, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R300_NE, R300, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R300_NF, R300, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R300_NG, R300, CHIP_HAS_CRTC2),
+ /* Mobility M10/M11 */
+ CHIP_DEF(PCI_CHIP_RV350_NP, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV350_NQ, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV350_NR, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV350_NS, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV350_NT, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV350_NV, RV350, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ /* 9600/FireGL T2 */
+ CHIP_DEF(PCI_CHIP_RV350_AP, RV350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV350_AQ, RV350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV360_AR, RV350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV350_AS, RV350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV350_AT, RV350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV350_AV, RV350, CHIP_HAS_CRTC2),
+ /* 9800/Pro/FileGL X2 */
+ CHIP_DEF(PCI_CHIP_R350_AH, R350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R350_AI, R350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R350_AJ, R350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R350_AK, R350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R350_NH, R350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R350_NI, R350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R360_NJ, R350, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R350_NK, R350, CHIP_HAS_CRTC2),
+ /* Newer stuff */
+ CHIP_DEF(PCI_CHIP_RV380_3E50, RV380, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV380_3E54, RV380, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV380_3150, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV380_3154, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV370_5B60, RV380, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV370_5B62, RV380, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV370_5B64, RV380, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV370_5B65, RV380, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_RV370_5460, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_RV370_5464, RV380, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_R420_JH, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R420_JI, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R420_JJ, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R420_JK, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R420_JL, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R420_JM, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R420_JN, R420, CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+ CHIP_DEF(PCI_CHIP_R420_JP, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_UH, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_UI, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_UJ, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_UK, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_UQ, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_UR, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_UT, R420, CHIP_HAS_CRTC2),
+ CHIP_DEF(PCI_CHIP_R423_5D57, R420, CHIP_HAS_CRTC2),
+ /* Original Radeon/7200 */
+ CHIP_DEF(PCI_CHIP_RADEON_QD, RADEON, 0),
+ CHIP_DEF(PCI_CHIP_RADEON_QE, RADEON, 0),
+ CHIP_DEF(PCI_CHIP_RADEON_QF, RADEON, 0),
+ CHIP_DEF(PCI_CHIP_RADEON_QG, RADEON, 0),
+ { 0, }
+};
+MODULE_DEVICE_TABLE(pci, radeonfb_pci_table);
+
+
+typedef struct {
+ u16 reg;
+ u32 val;
+} reg_val;
+
+
+/* these common regs are cleared before mode setting so they do not
+ * interfere with anything
+ */
+static reg_val common_regs[] = {
+ { OVR_CLR, 0 },
+ { OVR_WID_LEFT_RIGHT, 0 },
+ { OVR_WID_TOP_BOTTOM, 0 },
+ { OV0_SCALE_CNTL, 0 },
+ { SUBPIC_CNTL, 0 },
+ { VIPH_CONTROL, 0 },
+ { I2C_CNTL_1, 0 },
+ { GEN_INT_CNTL, 0 },
+ { CAP0_TRIG_CNTL, 0 },
+ { CAP1_TRIG_CNTL, 0 },
+};
+
+/*
+ * globals
+ */
+
+static char *mode_option;
+static char *monitor_layout;
+static int noaccel = 0;
+static int default_dynclk = -2;
+static int nomodeset = 0;
+static int ignore_edid = 0;
+static int mirror = 0;
+static int panel_yres = 0;
+static int force_dfp = 0;
+static int force_measure_pll = 0;
+#ifdef CONFIG_MTRR
+static int nomtrr = 0;
+#endif
+
+/*
+ * prototypes
+ */
+
+
+#ifdef CONFIG_PPC_OF
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+static int radeon_set_backlight_enable(int on, int level, void *data);
+static int radeon_set_backlight_level(int level, void *data);
+static struct backlight_controller radeon_backlight_controller = {
+ radeon_set_backlight_enable,
+ radeon_set_backlight_level
+};
+#endif /* CONFIG_PMAC_BACKLIGHT */
+
+#endif /* CONFIG_PPC_OF */
+
+static void radeon_unmap_ROM(struct radeonfb_info *rinfo, struct pci_dev *dev)
+{
+ if (!rinfo->bios_seg)
+ return;
+ pci_unmap_rom(dev, rinfo->bios_seg);
+}
+
+static int __devinit radeon_map_ROM(struct radeonfb_info *rinfo, struct pci_dev *dev)
+{
+ void __iomem *rom;
+ u16 dptr;
+ u8 rom_type;
+ size_t rom_size;
+
+ /* If this is a primary card, there is a shadow copy of the
+ * ROM somewhere in the first meg. We will just ignore the copy
+ * and use the ROM directly.
+ */
+
+ /* Fix from ATI for problem with Radeon hardware not leaving ROM enabled */
+ unsigned int temp;
+ temp = INREG(MPP_TB_CONFIG);
+ temp &= 0x00ffffffu;
+ temp |= 0x04 << 24;
+ OUTREG(MPP_TB_CONFIG, temp);
+ temp = INREG(MPP_TB_CONFIG);
+
+ rom = pci_map_rom(dev, &rom_size);
+ if (!rom) {
+ printk(KERN_ERR "radeonfb (%s): ROM failed to map\n",
+ pci_name(rinfo->pdev));
+ return -ENOMEM;
+ }
+
+ rinfo->bios_seg = rom;
+
+ /* Very simple test to make sure it appeared */
+ if (BIOS_IN16(0) != 0xaa55) {
+ printk(KERN_ERR "radeonfb (%s): Invalid ROM signature %x should be"
+ "0xaa55\n", pci_name(rinfo->pdev), BIOS_IN16(0));
+ goto failed;
+ }
+ /* Look for the PCI data to check the ROM type */
+ dptr = BIOS_IN16(0x18);
+
+ /* Check the PCI data signature. If it's wrong, we still assume a normal x86 ROM
+ * for now, until I've verified this works everywhere. The goal here is more
+ * to phase out Open Firmware images.
+ *
+ * Currently, we only look at the first PCI data, we could iteratre and deal with
+ * them all, and we should use fb_bios_start relative to start of image and not
+ * relative start of ROM, but so far, I never found a dual-image ATI card
+ *
+ * typedef struct {
+ * u32 signature; + 0x00
+ * u16 vendor; + 0x04
+ * u16 device; + 0x06
+ * u16 reserved_1; + 0x08
+ * u16 dlen; + 0x0a
+ * u8 drevision; + 0x0c
+ * u8 class_hi; + 0x0d
+ * u16 class_lo; + 0x0e
+ * u16 ilen; + 0x10
+ * u16 irevision; + 0x12
+ * u8 type; + 0x14
+ * u8 indicator; + 0x15
+ * u16 reserved_2; + 0x16
+ * } pci_data_t;
+ */
+ if (BIOS_IN32(dptr) != (('R' << 24) | ('I' << 16) | ('C' << 8) | 'P')) {
+ printk(KERN_WARNING "radeonfb (%s): PCI DATA signature in ROM"
+ "incorrect: %08x\n", pci_name(rinfo->pdev), BIOS_IN32(dptr));
+ goto anyway;
+ }
+ rom_type = BIOS_IN8(dptr + 0x14);
+ switch(rom_type) {
+ case 0:
+ printk(KERN_INFO "radeonfb: Found Intel x86 BIOS ROM Image\n");
+ break;
+ case 1:
+ printk(KERN_INFO "radeonfb: Found Open Firmware ROM Image\n");
+ goto failed;
+ case 2:
+ printk(KERN_INFO "radeonfb: Found HP PA-RISC ROM Image\n");
+ goto failed;
+ default:
+ printk(KERN_INFO "radeonfb: Found unknown type %d ROM Image\n", rom_type);
+ goto failed;
+ }
+ anyway:
+ /* Locate the flat panel infos, do some sanity checking !!! */
+ rinfo->fp_bios_start = BIOS_IN16(0x48);
+ return 0;
+
+ failed:
+ rinfo->bios_seg = NULL;
+ radeon_unmap_ROM(rinfo, dev);
+ return -ENXIO;
+}
+
+#ifdef CONFIG_X86
+static int __devinit radeon_find_mem_vbios(struct radeonfb_info *rinfo)
+{
+ /* I simplified this code as we used to miss the signatures in
+ * a lot of case. It's now closer to XFree, we just don't check
+ * for signatures at all... Something better will have to be done
+ * if we end up having conflicts
+ */
+ u32 segstart;
+ void __iomem *rom_base = NULL;
+
+ for(segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) {
+ rom_base = ioremap(segstart, 0x10000);
+ if (rom_base == NULL)
+ return -ENOMEM;
+ if (readb(rom_base) == 0x55 && readb(rom_base + 1) == 0xaa)
+ break;
+ iounmap(rom_base);
+ rom_base = NULL;
+ }
+ if (rom_base == NULL)
+ return -ENXIO;
+
+ /* Locate the flat panel infos, do some sanity checking !!! */
+ rinfo->bios_seg = rom_base;
+ rinfo->fp_bios_start = BIOS_IN16(0x48);
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_PPC_OF
+/*
+ * Read XTAL (ref clock), SCLK and MCLK from Open Firmware device
+ * tree. Hopefully, ATI OF driver is kind enough to fill these
+ */
+static int __devinit radeon_read_xtal_OF (struct radeonfb_info *rinfo)
+{
+ struct device_node *dp = rinfo->of_node;
+ u32 *val;
+
+ if (dp == NULL)
+ return -ENODEV;
+ val = (u32 *) get_property(dp, "ATY,RefCLK", NULL);
+ if (!val || !*val) {
+ printk(KERN_WARNING "radeonfb: No ATY,RefCLK property !\n");
+ return -EINVAL;
+ }
+
+ rinfo->pll.ref_clk = (*val) / 10;
+
+ val = (u32 *) get_property(dp, "ATY,SCLK", NULL);
+ if (val && *val)
+ rinfo->pll.sclk = (*val) / 10;
+
+ val = (u32 *) get_property(dp, "ATY,MCLK", NULL);
+ if (val && *val)
+ rinfo->pll.mclk = (*val) / 10;
+
+ return 0;
+}
+#endif /* CONFIG_PPC_OF */
+
+/*
+ * Read PLL infos from chip registers
+ */
+static int __devinit radeon_probe_pll_params(struct radeonfb_info *rinfo)
+{
+ unsigned char ppll_div_sel;
+ unsigned Ns, Nm, M;
+ unsigned sclk, mclk, tmp, ref_div;
+ int hTotal, vTotal, num, denom, m, n;
+ unsigned long long hz, vclk;
+ long xtal;
+ struct timeval start_tv, stop_tv;
+ long total_secs, total_usecs;
+ int i;
+
+ /* Ugh, we cut interrupts, bad bad bad, but we want some precision
+ * here, so... --BenH
+ */
+
+ /* Flush PCI buffers ? */
+ tmp = INREG(DEVICE_ID);
+
+ local_irq_disable();
+
+ for(i=0; i<1000000; i++)
+ if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) == 0)
+ break;
+
+ do_gettimeofday(&start_tv);
+
+ for(i=0; i<1000000; i++)
+ if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) != 0)
+ break;
+
+ for(i=0; i<1000000; i++)
+ if (((INREG(CRTC_VLINE_CRNT_VLINE) >> 16) & 0x3ff) == 0)
+ break;
+
+ do_gettimeofday(&stop_tv);
+
+ local_irq_enable();
+
+ total_secs = stop_tv.tv_sec - start_tv.tv_sec;
+ if (total_secs > 10)
+ return -1;
+ total_usecs = stop_tv.tv_usec - start_tv.tv_usec;
+ total_usecs += total_secs * 1000000;
+ if (total_usecs < 0)
+ total_usecs = -total_usecs;
+ hz = 1000000/total_usecs;
+
+ hTotal = ((INREG(CRTC_H_TOTAL_DISP) & 0x1ff) + 1) * 8;
+ vTotal = ((INREG(CRTC_V_TOTAL_DISP) & 0x3ff) + 1);
+ vclk = (long long)hTotal * (long long)vTotal * hz;
+
+ switch((INPLL(PPLL_REF_DIV) & 0x30000) >> 16) {
+ case 0:
+ default:
+ num = 1;
+ denom = 1;
+ break;
+ case 1:
+ n = ((INPLL(M_SPLL_REF_FB_DIV) >> 16) & 0xff);
+ m = (INPLL(M_SPLL_REF_FB_DIV) & 0xff);
+ num = 2*n;
+ denom = 2*m;
+ break;
+ case 2:
+ n = ((INPLL(M_SPLL_REF_FB_DIV) >> 8) & 0xff);
+ m = (INPLL(M_SPLL_REF_FB_DIV) & 0xff);
+ num = 2*n;
+ denom = 2*m;
+ break;
+ }
+
+ ppll_div_sel = INREG8(CLOCK_CNTL_INDEX + 1) & 0x3;
+ radeon_pll_errata_after_index(rinfo);
+
+ n = (INPLL(PPLL_DIV_0 + ppll_div_sel) & 0x7ff);
+ m = (INPLL(PPLL_REF_DIV) & 0x3ff);
+
+ num *= n;
+ denom *= m;
+
+ switch ((INPLL(PPLL_DIV_0 + ppll_div_sel) >> 16) & 0x7) {
+ case 1:
+ denom *= 2;
+ break;
+ case 2:
+ denom *= 4;
+ break;
+ case 3:
+ denom *= 8;
+ break;
+ case 4:
+ denom *= 3;
+ break;
+ case 6:
+ denom *= 6;
+ break;
+ case 7:
+ denom *= 12;
+ break;
+ }
+
+ vclk *= denom;
+ do_div(vclk, 1000 * num);
+ xtal = vclk;
+
+ if ((xtal > 26900) && (xtal < 27100))
+ xtal = 2700;
+ else if ((xtal > 14200) && (xtal < 14400))
+ xtal = 1432;
+ else if ((xtal > 29400) && (xtal < 29600))
+ xtal = 2950;
+ else {
+ printk(KERN_WARNING "xtal calculation failed: %ld\n", xtal);
+ return -1;
+ }
+
+ tmp = INPLL(M_SPLL_REF_FB_DIV);
+ ref_div = INPLL(PPLL_REF_DIV) & 0x3ff;
+
+ Ns = (tmp & 0xff0000) >> 16;
+ Nm = (tmp & 0xff00) >> 8;
+ M = (tmp & 0xff);
+ sclk = round_div((2 * Ns * xtal), (2 * M));
+ mclk = round_div((2 * Nm * xtal), (2 * M));
+
+ /* we're done, hopefully these are sane values */
+ rinfo->pll.ref_clk = xtal;
+ rinfo->pll.ref_div = ref_div;
+ rinfo->pll.sclk = sclk;
+ rinfo->pll.mclk = mclk;
+
+ return 0;
+}
+
+/*
+ * Retreive PLL infos by different means (BIOS, Open Firmware, register probing...)
+ */
+static void __devinit radeon_get_pllinfo(struct radeonfb_info *rinfo)
+{
+ /*
+ * In the case nothing works, these are defaults; they are mostly
+ * incomplete, however. It does provide ppll_max and _min values
+ * even for most other methods, however.
+ */
+ switch (rinfo->chipset) {
+ case PCI_DEVICE_ID_ATI_RADEON_QW:
+ case PCI_DEVICE_ID_ATI_RADEON_QX:
+ rinfo->pll.ppll_max = 35000;
+ rinfo->pll.ppll_min = 12000;
+ rinfo->pll.mclk = 23000;
+ rinfo->pll.sclk = 23000;
+ rinfo->pll.ref_clk = 2700;
+ break;
+ case PCI_DEVICE_ID_ATI_RADEON_QL:
+ case PCI_DEVICE_ID_ATI_RADEON_QN:
+ case PCI_DEVICE_ID_ATI_RADEON_QO:
+ case PCI_DEVICE_ID_ATI_RADEON_Ql:
+ case PCI_DEVICE_ID_ATI_RADEON_BB:
+ rinfo->pll.ppll_max = 35000;
+ rinfo->pll.ppll_min = 12000;
+ rinfo->pll.mclk = 27500;
+ rinfo->pll.sclk = 27500;
+ rinfo->pll.ref_clk = 2700;
+ break;
+ case PCI_DEVICE_ID_ATI_RADEON_Id:
+ case PCI_DEVICE_ID_ATI_RADEON_Ie:
+ case PCI_DEVICE_ID_ATI_RADEON_If:
+ case PCI_DEVICE_ID_ATI_RADEON_Ig:
+ rinfo->pll.ppll_max = 35000;
+ rinfo->pll.ppll_min = 12000;
+ rinfo->pll.mclk = 25000;
+ rinfo->pll.sclk = 25000;
+ rinfo->pll.ref_clk = 2700;
+ break;
+ case PCI_DEVICE_ID_ATI_RADEON_ND:
+ case PCI_DEVICE_ID_ATI_RADEON_NE:
+ case PCI_DEVICE_ID_ATI_RADEON_NF:
+ case PCI_DEVICE_ID_ATI_RADEON_NG:
+ rinfo->pll.ppll_max = 40000;
+ rinfo->pll.ppll_min = 20000;
+ rinfo->pll.mclk = 27000;
+ rinfo->pll.sclk = 27000;
+ rinfo->pll.ref_clk = 2700;
+ break;
+ case PCI_DEVICE_ID_ATI_RADEON_QD:
+ case PCI_DEVICE_ID_ATI_RADEON_QE:
+ case PCI_DEVICE_ID_ATI_RADEON_QF:
+ case PCI_DEVICE_ID_ATI_RADEON_QG:
+ default:
+ rinfo->pll.ppll_max = 35000;
+ rinfo->pll.ppll_min = 12000;
+ rinfo->pll.mclk = 16600;
+ rinfo->pll.sclk = 16600;
+ rinfo->pll.ref_clk = 2700;
+ break;
+ }
+ rinfo->pll.ref_div = INPLL(PPLL_REF_DIV) & PPLL_REF_DIV_MASK;
+
+
+#ifdef CONFIG_PPC_OF
+ /*
+ * Retreive PLL infos from Open Firmware first
+ */
+ if (!force_measure_pll && radeon_read_xtal_OF(rinfo) == 0) {
+ printk(KERN_INFO "radeonfb: Retreived PLL infos from Open Firmware\n");
+ goto found;
+ }
+#endif /* CONFIG_PPC_OF */
+
+ /*
+ * Check out if we have an X86 which gave us some PLL informations
+ * and if yes, retreive them
+ */
+ if (!force_measure_pll && rinfo->bios_seg) {
+ u16 pll_info_block = BIOS_IN16(rinfo->fp_bios_start + 0x30);
+
+ rinfo->pll.sclk = BIOS_IN16(pll_info_block + 0x08);
+ rinfo->pll.mclk = BIOS_IN16(pll_info_block + 0x0a);
+ rinfo->pll.ref_clk = BIOS_IN16(pll_info_block + 0x0e);
+ rinfo->pll.ref_div = BIOS_IN16(pll_info_block + 0x10);
+ rinfo->pll.ppll_min = BIOS_IN32(pll_info_block + 0x12);
+ rinfo->pll.ppll_max = BIOS_IN32(pll_info_block + 0x16);
+
+ printk(KERN_INFO "radeonfb: Retreived PLL infos from BIOS\n");
+ goto found;
+ }
+
+ /*
+ * We didn't get PLL parameters from either OF or BIOS, we try to
+ * probe them
+ */
+ if (radeon_probe_pll_params(rinfo) == 0) {
+ printk(KERN_INFO "radeonfb: Retreived PLL infos from registers\n");
+ goto found;
+ }
+
+ /*
+ * Fall back to already-set defaults...
+ */
+ printk(KERN_INFO "radeonfb: Used default PLL infos\n");
+
+found:
+ /*
+ * Some methods fail to retreive SCLK and MCLK values, we apply default
+ * settings in this case (200Mhz). If that really happne often, we could
+ * fetch from registers instead...
+ */
+ if (rinfo->pll.mclk == 0)
+ rinfo->pll.mclk = 20000;
+ if (rinfo->pll.sclk == 0)
+ rinfo->pll.sclk = 20000;
+
+ printk("radeonfb: Reference=%d.%02d MHz (RefDiv=%d) Memory=%d.%02d Mhz, System=%d.%02d MHz\n",
+ rinfo->pll.ref_clk / 100, rinfo->pll.ref_clk % 100,
+ rinfo->pll.ref_div,
+ rinfo->pll.mclk / 100, rinfo->pll.mclk % 100,
+ rinfo->pll.sclk / 100, rinfo->pll.sclk % 100);
+ printk("radeonfb: PLL min %d max %d\n", rinfo->pll.ppll_min, rinfo->pll.ppll_max);
+}
+
+static int radeonfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ struct radeonfb_info *rinfo = info->par;
+ struct fb_var_screeninfo v;
+ int nom, den;
+ unsigned int pitch;
+
+ if (radeon_match_mode(rinfo, &v, var))
+ return -EINVAL;
+
+ switch (v.bits_per_pixel) {
+ case 0 ... 8:
+ v.bits_per_pixel = 8;
+ break;
+ case 9 ... 16:
+ v.bits_per_pixel = 16;
+ break;
+ case 17 ... 24:
+#if 0 /* Doesn't seem to work */
+ v.bits_per_pixel = 24;
+ break;
+#endif
+ return -EINVAL;
+ case 25 ... 32:
+ v.bits_per_pixel = 32;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (var_to_depth(&v)) {
+ case 8:
+ nom = den = 1;
+ v.red.offset = v.green.offset = v.blue.offset = 0;
+ v.red.length = v.green.length = v.blue.length = 8;
+ v.transp.offset = v.transp.length = 0;
+ break;
+ case 15:
+ nom = 2;
+ den = 1;
+ v.red.offset = 10;
+ v.green.offset = 5;
+ v.blue.offset = 0;
+ v.red.length = v.green.length = v.blue.length = 5;
+ v.transp.offset = v.transp.length = 0;
+ break;
+ case 16:
+ nom = 2;
+ den = 1;
+ v.red.offset = 11;
+ v.green.offset = 5;
+ v.blue.offset = 0;
+ v.red.length = 5;
+ v.green.length = 6;
+ v.blue.length = 5;
+ v.transp.offset = v.transp.length = 0;
+ break;
+ case 24:
+ nom = 4;
+ den = 1;
+ v.red.offset = 16;
+ v.green.offset = 8;
+ v.blue.offset = 0;
+ v.red.length = v.blue.length = v.green.length = 8;
+ v.transp.offset = v.transp.length = 0;
+ break;
+ case 32:
+ nom = 4;
+ den = 1;
+ v.red.offset = 16;
+ v.green.offset = 8;
+ v.blue.offset = 0;
+ v.red.length = v.blue.length = v.green.length = 8;
+ v.transp.offset = 24;
+ v.transp.length = 8;
+ break;
+ default:
+ printk ("radeonfb: mode %dx%dx%d rejected, color depth invalid\n",
+ var->xres, var->yres, var->bits_per_pixel);
+ return -EINVAL;
+ }
+
+ if (v.yres_virtual < v.yres)
+ v.yres_virtual = v.yres;
+ if (v.xres_virtual < v.xres)
+ v.xres_virtual = v.xres;
+
+
+ /* XXX I'm adjusting xres_virtual to the pitch, that may help XFree
+ * with some panels, though I don't quite like this solution
+ */
+ if (rinfo->info->flags & FBINFO_HWACCEL_DISABLED) {
+ v.xres_virtual = v.xres_virtual & ~7ul;
+ } else {
+ pitch = ((v.xres_virtual * ((v.bits_per_pixel + 1) / 8) + 0x3f)
+ & ~(0x3f)) >> 6;
+ v.xres_virtual = (pitch << 6) / ((v.bits_per_pixel + 1) / 8);
+ }
+
+ if (((v.xres_virtual * v.yres_virtual * nom) / den) > rinfo->mapped_vram)
+ return -EINVAL;
+
+ if (v.xres_virtual < v.xres)
+ v.xres = v.xres_virtual;
+
+ if (v.xoffset < 0)
+ v.xoffset = 0;
+ if (v.yoffset < 0)
+ v.yoffset = 0;
+
+ if (v.xoffset > v.xres_virtual - v.xres)
+ v.xoffset = v.xres_virtual - v.xres - 1;
+
+ if (v.yoffset > v.yres_virtual - v.yres)
+ v.yoffset = v.yres_virtual - v.yres - 1;
+
+ v.red.msb_right = v.green.msb_right = v.blue.msb_right =
+ v.transp.offset = v.transp.length =
+ v.transp.msb_right = 0;
+
+ memcpy(var, &v, sizeof(v));
+
+ return 0;
+}
+
+
+static int radeonfb_pan_display (struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ struct radeonfb_info *rinfo = info->par;
+
+ if ((var->xoffset + var->xres > var->xres_virtual)
+ || (var->yoffset + var->yres > var->yres_virtual))
+ return -EINVAL;
+
+ if (rinfo->asleep)
+ return 0;
+
+ radeon_fifo_wait(2);
+ OUTREG(CRTC_OFFSET, ((var->yoffset * var->xres_virtual + var->xoffset)
+ * var->bits_per_pixel / 8) & ~7);
+ return 0;
+}
+
+
+static int radeonfb_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
+ unsigned long arg, struct fb_info *info)
+{
+ struct radeonfb_info *rinfo = info->par;
+ unsigned int tmp;
+ u32 value = 0;
+ int rc;
+
+ switch (cmd) {
+ /*
+ * TODO: set mirror accordingly for non-Mobility chipsets with 2 CRTC's
+ * and do something better using 2nd CRTC instead of just hackish
+ * routing to second output
+ */
+ case FBIO_RADEON_SET_MIRROR:
+ if (!rinfo->is_mobility)
+ return -EINVAL;
+
+ rc = get_user(value, (__u32 __user *)arg);
+
+ if (rc)
+ return rc;
+
+ radeon_fifo_wait(2);
+ if (value & 0x01) {
+ tmp = INREG(LVDS_GEN_CNTL);
+
+ tmp |= (LVDS_ON | LVDS_BLON);
+ } else {
+ tmp = INREG(LVDS_GEN_CNTL);
+
+ tmp &= ~(LVDS_ON | LVDS_BLON);
+ }
+
+ OUTREG(LVDS_GEN_CNTL, tmp);
+
+ if (value & 0x02) {
+ tmp = INREG(CRTC_EXT_CNTL);
+ tmp |= CRTC_CRT_ON;
+
+ mirror = 1;
+ } else {
+ tmp = INREG(CRTC_EXT_CNTL);
+ tmp &= ~CRTC_CRT_ON;
+
+ mirror = 0;
+ }
+
+ OUTREG(CRTC_EXT_CNTL, tmp);
+
+ return 0;
+ case FBIO_RADEON_GET_MIRROR:
+ if (!rinfo->is_mobility)
+ return -EINVAL;
+
+ tmp = INREG(LVDS_GEN_CNTL);
+ if ((LVDS_ON | LVDS_BLON) & tmp)
+ value |= 0x01;
+
+ tmp = INREG(CRTC_EXT_CNTL);
+ if (CRTC_CRT_ON & tmp)
+ value |= 0x02;
+
+ return put_user(value, (__u32 __user *)arg);
+ default:
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}
+
+
+int radeon_screen_blank(struct radeonfb_info *rinfo, int blank, int mode_switch)
+{
+ u32 val;
+ u32 tmp_pix_clks;
+ int unblank = 0;
+
+ if (rinfo->lock_blank)
+ return 0;
+
+ radeon_engine_idle();
+
+ val = INREG(CRTC_EXT_CNTL);
+ val &= ~(CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS |
+ CRTC_VSYNC_DIS);
+ switch (blank) {
+ case FB_BLANK_VSYNC_SUSPEND:
+ val |= (CRTC_DISPLAY_DIS | CRTC_VSYNC_DIS);
+ break;
+ case FB_BLANK_HSYNC_SUSPEND:
+ val |= (CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS);
+ break;
+ case FB_BLANK_POWERDOWN:
+ val |= (CRTC_DISPLAY_DIS | CRTC_VSYNC_DIS |
+ CRTC_HSYNC_DIS);
+ break;
+ case FB_BLANK_NORMAL:
+ val |= CRTC_DISPLAY_DIS;
+ break;
+ case FB_BLANK_UNBLANK:
+ default:
+ unblank = 1;
+ }
+ OUTREG(CRTC_EXT_CNTL, val);
+
+
+ switch (rinfo->mon1_type) {
+ case MT_DFP:
+ if (unblank)
+ OUTREGP(FP_GEN_CNTL, (FP_FPON | FP_TMDS_EN),
+ ~(FP_FPON | FP_TMDS_EN));
+ else {
+ if (mode_switch || blank == FB_BLANK_NORMAL)
+ break;
+ OUTREGP(FP_GEN_CNTL, 0, ~(FP_FPON | FP_TMDS_EN));
+ }
+ break;
+ case MT_LCD:
+ del_timer_sync(&rinfo->lvds_timer);
+ val = INREG(LVDS_GEN_CNTL);
+ if (unblank) {
+ u32 target_val = (val & ~LVDS_DISPLAY_DIS) | LVDS_BLON | LVDS_ON
+ | LVDS_EN | (rinfo->init_state.lvds_gen_cntl
+ & (LVDS_DIGON | LVDS_BL_MOD_EN));
+ if ((val ^ target_val) == LVDS_DISPLAY_DIS)
+ OUTREG(LVDS_GEN_CNTL, target_val);
+ else if ((val ^ target_val) != 0) {
+ OUTREG(LVDS_GEN_CNTL, target_val
+ & ~(LVDS_ON | LVDS_BL_MOD_EN));
+ rinfo->init_state.lvds_gen_cntl &= ~LVDS_STATE_MASK;
+ rinfo->init_state.lvds_gen_cntl |=
+ target_val & LVDS_STATE_MASK;
+ if (mode_switch) {
+ radeon_msleep(rinfo->panel_info.pwr_delay);
+ OUTREG(LVDS_GEN_CNTL, target_val);
+ }
+ else {
+ rinfo->pending_lvds_gen_cntl = target_val;
+ mod_timer(&rinfo->lvds_timer,
+ jiffies +
+ msecs_to_jiffies(rinfo->panel_info.pwr_delay));
+ }
+ }
+ } else {
+ val |= LVDS_DISPLAY_DIS;
+ OUTREG(LVDS_GEN_CNTL, val);
+
+ /* We don't do a full switch-off on a simple mode switch */
+ if (mode_switch || blank == FB_BLANK_NORMAL)
+ break;
+
+ /* Asic bug, when turning off LVDS_ON, we have to make sure
+ * RADEON_PIXCLK_LVDS_ALWAYS_ON bit is off
+ */
+ tmp_pix_clks = INPLL(PIXCLKS_CNTL);
+ if (rinfo->is_mobility || rinfo->is_IGP)
+ OUTPLLP(PIXCLKS_CNTL, 0, ~PIXCLK_LVDS_ALWAYS_ONb);
+ val &= ~(LVDS_BL_MOD_EN);
+ OUTREG(LVDS_GEN_CNTL, val);
+ udelay(100);
+ val &= ~(LVDS_ON | LVDS_EN);
+ OUTREG(LVDS_GEN_CNTL, val);
+ val &= ~LVDS_DIGON;
+ rinfo->pending_lvds_gen_cntl = val;
+ mod_timer(&rinfo->lvds_timer,
+ jiffies +
+ msecs_to_jiffies(rinfo->panel_info.pwr_delay));
+ rinfo->init_state.lvds_gen_cntl &= ~LVDS_STATE_MASK;
+ rinfo->init_state.lvds_gen_cntl |= val & LVDS_STATE_MASK;
+ if (rinfo->is_mobility || rinfo->is_IGP)
+ OUTPLL(PIXCLKS_CNTL, tmp_pix_clks);
+ }
+ break;
+ case MT_CRT:
+ // todo: powerdown DAC
+ default:
+ break;
+ }
+
+ /* let fbcon do a soft blank for us */
+ return (blank == FB_BLANK_NORMAL) ? -EINVAL : 0;
+}
+
+static int radeonfb_blank (int blank, struct fb_info *info)
+{
+ struct radeonfb_info *rinfo = info->par;
+
+ if (rinfo->asleep)
+ return 0;
+
+ return radeon_screen_blank(rinfo, blank, 0);
+}
+
+static int radeonfb_setcolreg (unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp, struct fb_info *info)
+{
+ struct radeonfb_info *rinfo = info->par;
+ u32 pindex;
+ unsigned int i;
+
+ if (regno > 255)
+ return 1;
+
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+ rinfo->palette[regno].red = red;
+ rinfo->palette[regno].green = green;
+ rinfo->palette[regno].blue = blue;
+
+ /* default */
+ pindex = regno;
+
+ if (!rinfo->asleep) {
+ u32 dac_cntl2, vclk_cntl = 0;
+
+ radeon_fifo_wait(9);
+ if (rinfo->is_mobility) {
+ vclk_cntl = INPLL(VCLK_ECP_CNTL);
+ OUTPLL(VCLK_ECP_CNTL, vclk_cntl & ~PIXCLK_DAC_ALWAYS_ONb);
+ }
+
+ /* Make sure we are on first palette */
+ if (rinfo->has_CRTC2) {
+ dac_cntl2 = INREG(DAC_CNTL2);
+ dac_cntl2 &= ~DAC2_PALETTE_ACCESS_CNTL;
+ OUTREG(DAC_CNTL2, dac_cntl2);
+ }
+
+ if (rinfo->bpp == 16) {
+ pindex = regno * 8;
+
+ if (rinfo->depth == 16 && regno > 63)
+ return 1;
+ if (rinfo->depth == 15 && regno > 31)
+ return 1;
+
+ /* For 565, the green component is mixed one order below */
+ if (rinfo->depth == 16) {
+ OUTREG(PALETTE_INDEX, pindex>>1);
+ OUTREG(PALETTE_DATA, (rinfo->palette[regno>>1].red << 16) |
+ (green << 8) | (rinfo->palette[regno>>1].blue));
+ green = rinfo->palette[regno<<1].green;
+ }
+ }
+
+ if (rinfo->depth != 16 || regno < 32) {
+ OUTREG(PALETTE_INDEX, pindex);
+ OUTREG(PALETTE_DATA, (red << 16) | (green << 8) | blue);
+ }
+ if (rinfo->is_mobility)
+ OUTPLL(VCLK_ECP_CNTL, vclk_cntl);
+ }
+ if (regno < 16) {
+ u32 *pal = info->pseudo_palette;
+ switch (rinfo->depth) {
+ case 15:
+ pal[regno] = (regno << 10) | (regno << 5) | regno;
+ break;
+ case 16:
+ pal[regno] = (regno << 11) | (regno << 5) | regno;
+ break;
+ case 24:
+ pal[regno] = (regno << 16) | (regno << 8) | regno;
+ break;
+ case 32:
+ i = (regno << 8) | regno;
+ pal[regno] = (i << 16) | i;
+ break;
+ }
+ }
+ return 0;
+}
+
+
+static void radeon_save_state (struct radeonfb_info *rinfo,
+ struct radeon_regs *save)
+{
+ /* CRTC regs */
+ save->crtc_gen_cntl = INREG(CRTC_GEN_CNTL);
+ save->crtc_ext_cntl = INREG(CRTC_EXT_CNTL);
+ save->crtc_more_cntl = INREG(CRTC_MORE_CNTL);
+ save->dac_cntl = INREG(DAC_CNTL);
+ save->crtc_h_total_disp = INREG(CRTC_H_TOTAL_DISP);
+ save->crtc_h_sync_strt_wid = INREG(CRTC_H_SYNC_STRT_WID);
+ save->crtc_v_total_disp = INREG(CRTC_V_TOTAL_DISP);
+ save->crtc_v_sync_strt_wid = INREG(CRTC_V_SYNC_STRT_WID);
+ save->crtc_pitch = INREG(CRTC_PITCH);
+ save->surface_cntl = INREG(SURFACE_CNTL);
+
+ /* FP regs */
+ save->fp_crtc_h_total_disp = INREG(FP_CRTC_H_TOTAL_DISP);
+ save->fp_crtc_v_total_disp = INREG(FP_CRTC_V_TOTAL_DISP);
+ save->fp_gen_cntl = INREG(FP_GEN_CNTL);
+ save->fp_h_sync_strt_wid = INREG(FP_H_SYNC_STRT_WID);
+ save->fp_horz_stretch = INREG(FP_HORZ_STRETCH);
+ save->fp_v_sync_strt_wid = INREG(FP_V_SYNC_STRT_WID);
+ save->fp_vert_stretch = INREG(FP_VERT_STRETCH);
+ save->lvds_gen_cntl = INREG(LVDS_GEN_CNTL);
+ save->lvds_pll_cntl = INREG(LVDS_PLL_CNTL);
+ save->tmds_crc = INREG(TMDS_CRC);
+ save->tmds_transmitter_cntl = INREG(TMDS_TRANSMITTER_CNTL);
+ save->vclk_ecp_cntl = INPLL(VCLK_ECP_CNTL);
+
+ /* PLL regs */
+ save->clk_cntl_index = INREG(CLOCK_CNTL_INDEX) & ~0x3f;
+ radeon_pll_errata_after_index(rinfo);
+ save->ppll_div_3 = INPLL(PPLL_DIV_3);
+ save->ppll_ref_div = INPLL(PPLL_REF_DIV);
+}
+
+
+static void radeon_write_pll_regs(struct radeonfb_info *rinfo, struct radeon_regs *mode)
+{
+ int i;
+
+ radeon_fifo_wait(20);
+
+ /* Workaround from XFree */
+ if (rinfo->is_mobility) {
+ /* A temporal workaround for the occational blanking on certain laptop
+ * panels. This appears to related to the PLL divider registers
+ * (fail to lock?). It occurs even when all dividers are the same
+ * with their old settings. In this case we really don't need to
+ * fiddle with PLL registers. By doing this we can avoid the blanking
+ * problem with some panels.
+ */
+ if ((mode->ppll_ref_div == (INPLL(PPLL_REF_DIV) & PPLL_REF_DIV_MASK)) &&
+ (mode->ppll_div_3 == (INPLL(PPLL_DIV_3) &
+ (PPLL_POST3_DIV_MASK | PPLL_FB3_DIV_MASK)))) {
+ /* We still have to force a switch to selected PPLL div thanks to
+ * an XFree86 driver bug which will switch it away in some cases
+ * even when using UseFDev */
+ OUTREGP(CLOCK_CNTL_INDEX,
+ mode->clk_cntl_index & PPLL_DIV_SEL_MASK,
+ ~PPLL_DIV_SEL_MASK);
+ radeon_pll_errata_after_index(rinfo);
+ radeon_pll_errata_after_data(rinfo);
+ return;
+ }
+ }
+
+ /* Swich VCKL clock input to CPUCLK so it stays fed while PPLL updates*/
+ OUTPLLP(VCLK_ECP_CNTL, VCLK_SRC_SEL_CPUCLK, ~VCLK_SRC_SEL_MASK);
+
+ /* Reset PPLL & enable atomic update */
+ OUTPLLP(PPLL_CNTL,
+ PPLL_RESET | PPLL_ATOMIC_UPDATE_EN | PPLL_VGA_ATOMIC_UPDATE_EN,
+ ~(PPLL_RESET | PPLL_ATOMIC_UPDATE_EN | PPLL_VGA_ATOMIC_UPDATE_EN));
+
+ /* Switch to selected PPLL divider */
+ OUTREGP(CLOCK_CNTL_INDEX,
+ mode->clk_cntl_index & PPLL_DIV_SEL_MASK,
+ ~PPLL_DIV_SEL_MASK);
+ radeon_pll_errata_after_index(rinfo);
+ radeon_pll_errata_after_data(rinfo);
+
+ /* Set PPLL ref. div */
+ if (rinfo->family == CHIP_FAMILY_R300 ||
+ rinfo->family == CHIP_FAMILY_RS300 ||
+ rinfo->family == CHIP_FAMILY_R350 ||
+ rinfo->family == CHIP_FAMILY_RV350) {
+ if (mode->ppll_ref_div & R300_PPLL_REF_DIV_ACC_MASK) {
+ /* When restoring console mode, use saved PPLL_REF_DIV
+ * setting.
+ */
+ OUTPLLP(PPLL_REF_DIV, mode->ppll_ref_div, 0);
+ } else {
+ /* R300 uses ref_div_acc field as real ref divider */
+ OUTPLLP(PPLL_REF_DIV,
+ (mode->ppll_ref_div << R300_PPLL_REF_DIV_ACC_SHIFT),
+ ~R300_PPLL_REF_DIV_ACC_MASK);
+ }
+ } else
+ OUTPLLP(PPLL_REF_DIV, mode->ppll_ref_div, ~PPLL_REF_DIV_MASK);
+
+ /* Set PPLL divider 3 & post divider*/
+ OUTPLLP(PPLL_DIV_3, mode->ppll_div_3, ~PPLL_FB3_DIV_MASK);
+ OUTPLLP(PPLL_DIV_3, mode->ppll_div_3, ~PPLL_POST3_DIV_MASK);
+
+ /* Write update */
+ while (INPLL(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R)
+ ;
+ OUTPLLP(PPLL_REF_DIV, PPLL_ATOMIC_UPDATE_W, ~PPLL_ATOMIC_UPDATE_W);
+
+ /* Wait read update complete */
+ /* FIXME: Certain revisions of R300 can't recover here. Not sure of
+ the cause yet, but this workaround will mask the problem for now.
+ Other chips usually will pass at the very first test, so the
+ workaround shouldn't have any effect on them. */
+ for (i = 0; (i < 10000 && INPLL(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R); i++)
+ ;
+
+ OUTPLL(HTOTAL_CNTL, 0);
+
+ /* Clear reset & atomic update */
+ OUTPLLP(PPLL_CNTL, 0,
+ ~(PPLL_RESET | PPLL_SLEEP | PPLL_ATOMIC_UPDATE_EN | PPLL_VGA_ATOMIC_UPDATE_EN));
+
+ /* We may want some locking ... oh well */
+ radeon_msleep(5);
+
+ /* Switch back VCLK source to PPLL */
+ OUTPLLP(VCLK_ECP_CNTL, VCLK_SRC_SEL_PPLLCLK, ~VCLK_SRC_SEL_MASK);
+}
+
+/*
+ * Timer function for delayed LVDS panel power up/down
+ */
+static void radeon_lvds_timer_func(unsigned long data)
+{
+ struct radeonfb_info *rinfo = (struct radeonfb_info *)data;
+
+ radeon_engine_idle();
+
+ OUTREG(LVDS_GEN_CNTL, rinfo->pending_lvds_gen_cntl);
+}
+
+/*
+ * Apply a video mode. This will apply the whole register set, including
+ * the PLL registers, to the card
+ */
+void radeon_write_mode (struct radeonfb_info *rinfo, struct radeon_regs *mode,
+ int regs_only)
+{
+ int i;
+ int primary_mon = PRIMARY_MONITOR(rinfo);
+
+ if (nomodeset)
+ return;
+
+ if (!regs_only)
+ radeon_screen_blank(rinfo, FB_BLANK_NORMAL, 0);
+
+ radeon_fifo_wait(31);
+ for (i=0; i<10; i++)
+ OUTREG(common_regs[i].reg, common_regs[i].val);
+
+ /* Apply surface registers */
+ for (i=0; i<8; i++) {
+ OUTREG(SURFACE0_LOWER_BOUND + 0x10*i, mode->surf_lower_bound[i]);
+ OUTREG(SURFACE0_UPPER_BOUND + 0x10*i, mode->surf_upper_bound[i]);
+ OUTREG(SURFACE0_INFO + 0x10*i, mode->surf_info[i]);
+ }
+
+ OUTREG(CRTC_GEN_CNTL, mode->crtc_gen_cntl);
+ OUTREGP(CRTC_EXT_CNTL, mode->crtc_ext_cntl,
+ ~(CRTC_HSYNC_DIS | CRTC_VSYNC_DIS | CRTC_DISPLAY_DIS));
+ OUTREG(CRTC_MORE_CNTL, mode->crtc_more_cntl);
+ OUTREGP(DAC_CNTL, mode->dac_cntl, DAC_RANGE_CNTL | DAC_BLANKING);
+ OUTREG(CRTC_H_TOTAL_DISP, mode->crtc_h_total_disp);
+ OUTREG(CRTC_H_SYNC_STRT_WID, mode->crtc_h_sync_strt_wid);
+ OUTREG(CRTC_V_TOTAL_DISP, mode->crtc_v_total_disp);
+ OUTREG(CRTC_V_SYNC_STRT_WID, mode->crtc_v_sync_strt_wid);
+ OUTREG(CRTC_OFFSET, 0);
+ OUTREG(CRTC_OFFSET_CNTL, 0);
+ OUTREG(CRTC_PITCH, mode->crtc_pitch);
+ OUTREG(SURFACE_CNTL, mode->surface_cntl);
+
+ radeon_write_pll_regs(rinfo, mode);
+
+ if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
+ radeon_fifo_wait(10);
+ OUTREG(FP_CRTC_H_TOTAL_DISP, mode->fp_crtc_h_total_disp);
+ OUTREG(FP_CRTC_V_TOTAL_DISP, mode->fp_crtc_v_total_disp);
+ OUTREG(FP_H_SYNC_STRT_WID, mode->fp_h_sync_strt_wid);
+ OUTREG(FP_V_SYNC_STRT_WID, mode->fp_v_sync_strt_wid);
+ OUTREG(FP_HORZ_STRETCH, mode->fp_horz_stretch);
+ OUTREG(FP_VERT_STRETCH, mode->fp_vert_stretch);
+ OUTREG(FP_GEN_CNTL, mode->fp_gen_cntl);
+ OUTREG(TMDS_CRC, mode->tmds_crc);
+ OUTREG(TMDS_TRANSMITTER_CNTL, mode->tmds_transmitter_cntl);
+ }
+
+ if (!regs_only)
+ radeon_screen_blank(rinfo, FB_BLANK_UNBLANK, 0);
+
+ radeon_fifo_wait(2);
+ OUTPLL(VCLK_ECP_CNTL, mode->vclk_ecp_cntl);
+
+ return;
+}
+
+/*
+ * Calculate the PLL values for a given mode
+ */
+static void radeon_calc_pll_regs(struct radeonfb_info *rinfo, struct radeon_regs *regs,
+ unsigned long freq)
+{
+ const struct {
+ int divider;
+ int bitvalue;
+ } *post_div,
+ post_divs[] = {
+ { 1, 0 },
+ { 2, 1 },
+ { 4, 2 },
+ { 8, 3 },
+ { 3, 4 },
+ { 16, 5 },
+ { 6, 6 },
+ { 12, 7 },
+ { 0, 0 },
+ };
+ int fb_div, pll_output_freq = 0;
+ int uses_dvo = 0;
+
+ /* Check if the DVO port is enabled and sourced from the primary CRTC. I'm
+ * not sure which model starts having FP2_GEN_CNTL, I assume anything more
+ * recent than an r(v)100...
+ */
+#if 1
+ /* XXX I had reports of flicker happening with the cinema display
+ * on TMDS1 that seem to be fixed if I also forbit odd dividers in
+ * this case. This could just be a bandwidth calculation issue, I
+ * haven't implemented the bandwidth code yet, but in the meantime,
+ * forcing uses_dvo to 1 fixes it and shouln't have bad side effects,
+ * I haven't seen a case were were absolutely needed an odd PLL
+ * divider. I'll find a better fix once I have more infos on the
+ * real cause of the problem.
+ */
+ while (rinfo->has_CRTC2) {
+ u32 fp2_gen_cntl = INREG(FP2_GEN_CNTL);
+ u32 disp_output_cntl;
+ int source;
+
+ /* FP2 path not enabled */
+ if ((fp2_gen_cntl & FP2_ON) == 0)
+ break;
+ /* Not all chip revs have the same format for this register,
+ * extract the source selection
+ */
+ if (rinfo->family == CHIP_FAMILY_R200 ||
+ rinfo->family == CHIP_FAMILY_R300 ||
+ rinfo->family == CHIP_FAMILY_R350 ||
+ rinfo->family == CHIP_FAMILY_RV350) {
+ source = (fp2_gen_cntl >> 10) & 0x3;
+ /* sourced from transform unit, check for transform unit
+ * own source
+ */
+ if (source == 3) {
+ disp_output_cntl = INREG(DISP_OUTPUT_CNTL);
+ source = (disp_output_cntl >> 12) & 0x3;
+ }
+ } else
+ source = (fp2_gen_cntl >> 13) & 0x1;
+ /* sourced from CRTC2 -> exit */
+ if (source == 1)
+ break;
+
+ /* so we end up on CRTC1, let's set uses_dvo to 1 now */
+ uses_dvo = 1;
+ break;
+ }
+#else
+ uses_dvo = 1;
+#endif
+ if (freq > rinfo->pll.ppll_max)
+ freq = rinfo->pll.ppll_max;
+ if (freq*12 < rinfo->pll.ppll_min)
+ freq = rinfo->pll.ppll_min / 12;
+ RTRACE("freq = %lu, PLL min = %u, PLL max = %u\n",
+ freq, rinfo->pll.ppll_min, rinfo->pll.ppll_max);
+
+ for (post_div = &post_divs[0]; post_div->divider; ++post_div) {
+ pll_output_freq = post_div->divider * freq;
+ /* If we output to the DVO port (external TMDS), we don't allow an
+ * odd PLL divider as those aren't supported on this path
+ */
+ if (uses_dvo && (post_div->divider & 1))
+ continue;
+ if (pll_output_freq >= rinfo->pll.ppll_min &&
+ pll_output_freq <= rinfo->pll.ppll_max)
+ break;
+ }
+
+ /* If we fall through the bottom, try the "default value"
+ given by the terminal post_div->bitvalue */
+ if ( !post_div->divider ) {
+ post_div = &post_divs[post_div->bitvalue];
+ pll_output_freq = post_div->divider * freq;
+ }
+ RTRACE("ref_div = %d, ref_clk = %d, output_freq = %d\n",
+ rinfo->pll.ref_div, rinfo->pll.ref_clk,
+ pll_output_freq);
+
+ /* If we fall through the bottom, try the "default value"
+ given by the terminal post_div->bitvalue */
+ if ( !post_div->divider ) {
+ post_div = &post_divs[post_div->bitvalue];
+ pll_output_freq = post_div->divider * freq;
+ }
+ RTRACE("ref_div = %d, ref_clk = %d, output_freq = %d\n",
+ rinfo->pll.ref_div, rinfo->pll.ref_clk,
+ pll_output_freq);
+
+ fb_div = round_div(rinfo->pll.ref_div*pll_output_freq,
+ rinfo->pll.ref_clk);
+ regs->ppll_ref_div = rinfo->pll.ref_div;
+ regs->ppll_div_3 = fb_div | (post_div->bitvalue << 16);
+
+ RTRACE("post div = 0x%x\n", post_div->bitvalue);
+ RTRACE("fb_div = 0x%x\n", fb_div);
+ RTRACE("ppll_div_3 = 0x%x\n", regs->ppll_div_3);
+}
+
+static int radeonfb_set_par(struct fb_info *info)
+{
+ struct radeonfb_info *rinfo = info->par;
+ struct fb_var_screeninfo *mode = &info->var;
+ struct radeon_regs *newmode;
+ int hTotal, vTotal, hSyncStart, hSyncEnd,
+ hSyncPol, vSyncStart, vSyncEnd, vSyncPol, cSync;
+ u8 hsync_adj_tab[] = {0, 0x12, 9, 9, 6, 5};
+ u8 hsync_fudge_fp[] = {2, 2, 0, 0, 5, 5};
+ u32 sync, h_sync_pol, v_sync_pol, dotClock, pixClock;
+ int i, freq;
+ int format = 0;
+ int nopllcalc = 0;
+ int hsync_start, hsync_fudge, bytpp, hsync_wid, vsync_wid;
+ int primary_mon = PRIMARY_MONITOR(rinfo);
+ int depth = var_to_depth(mode);
+ int use_rmx = 0;
+
+ newmode = kmalloc(sizeof(struct radeon_regs), GFP_KERNEL);
+ if (!newmode)
+ return -ENOMEM;
+
+ /* We always want engine to be idle on a mode switch, even
+ * if we won't actually change the mode
+ */
+ radeon_engine_idle();
+
+ hSyncStart = mode->xres + mode->right_margin;
+ hSyncEnd = hSyncStart + mode->hsync_len;
+ hTotal = hSyncEnd + mode->left_margin;
+
+ vSyncStart = mode->yres + mode->lower_margin;
+ vSyncEnd = vSyncStart + mode->vsync_len;
+ vTotal = vSyncEnd + mode->upper_margin;
+ pixClock = mode->pixclock;
+
+ sync = mode->sync;
+ h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
+ v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
+
+ if (primary_mon == MT_DFP || primary_mon == MT_LCD) {
+ if (rinfo->panel_info.xres < mode->xres)
+ mode->xres = rinfo->panel_info.xres;
+ if (rinfo->panel_info.yres < mode->yres)
+ mode->yres = rinfo->panel_info.yres;
+
+ hTotal = mode->xres + rinfo->panel_info.hblank;
+ hSyncStart = mode->xres + rinfo->panel_info.hOver_plus;
+ hSyncEnd = hSyncStart + rinfo->panel_info.hSync_width;
+
+ vTotal = mode->yres + rinfo->panel_info.vblank;
+ vSyncStart = mode->yres + rinfo->panel_info.vOver_plus;
+ vSyncEnd = vSyncStart + rinfo->panel_info.vSync_width;
+
+ h_sync_pol = !rinfo->panel_info.hAct_high;
+ v_sync_pol = !rinfo->panel_info.vAct_high;
+
+ pixClock = 100000000 / rinfo->panel_info.clock;
+
+ if (rinfo->panel_info.use_bios_dividers) {
+ nopllcalc = 1;
+ newmode->ppll_div_3 = rinfo->panel_info.fbk_divider |
+ (rinfo->panel_info.post_divider << 16);
+ newmode->ppll_ref_div = rinfo->panel_info.ref_divider;
+ }
+ }
+ dotClock = 1000000000 / pixClock;
+ freq = dotClock / 10; /* x100 */
+
+ RTRACE("hStart = %d, hEnd = %d, hTotal = %d\n",
+ hSyncStart, hSyncEnd, hTotal);
+ RTRACE("vStart = %d, vEnd = %d, vTotal = %d\n",
+ vSyncStart, vSyncEnd, vTotal);
+
+ hsync_wid = (hSyncEnd - hSyncStart) / 8;
+ vsync_wid = vSyncEnd - vSyncStart;
+ if (hsync_wid == 0)
+ hsync_wid = 1;
+ else if (hsync_wid > 0x3f) /* max */
+ hsync_wid = 0x3f;
+
+ if (vsync_wid == 0)
+ vsync_wid = 1;
+ else if (vsync_wid > 0x1f) /* max */
+ vsync_wid = 0x1f;
+
+ hSyncPol = mode->sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
+ vSyncPol = mode->sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
+
+ cSync = mode->sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0;
+
+ format = radeon_get_dstbpp(depth);
+ bytpp = mode->bits_per_pixel >> 3;
+
+ if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD))
+ hsync_fudge = hsync_fudge_fp[format-1];
+ else
+ hsync_fudge = hsync_adj_tab[format-1];
+
+ hsync_start = hSyncStart - 8 + hsync_fudge;
+
+ newmode->crtc_gen_cntl = CRTC_EXT_DISP_EN | CRTC_EN |
+ (format << 8);
+
+ /* Clear auto-center etc... */
+ newmode->crtc_more_cntl = rinfo->init_state.crtc_more_cntl;
+ newmode->crtc_more_cntl &= 0xfffffff0;
+
+ if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
+ newmode->crtc_ext_cntl = VGA_ATI_LINEAR | XCRT_CNT_EN;
+ if (mirror)
+ newmode->crtc_ext_cntl |= CRTC_CRT_ON;
+
+ newmode->crtc_gen_cntl &= ~(CRTC_DBL_SCAN_EN |
+ CRTC_INTERLACE_EN);
+ } else {
+ newmode->crtc_ext_cntl = VGA_ATI_LINEAR | XCRT_CNT_EN |
+ CRTC_CRT_ON;
+ }
+
+ newmode->dac_cntl = /* INREG(DAC_CNTL) | */ DAC_MASK_ALL | DAC_VGA_ADR_EN |
+ DAC_8BIT_EN;
+
+ newmode->crtc_h_total_disp = ((((hTotal / 8) - 1) & 0x3ff) |
+ (((mode->xres / 8) - 1) << 16));
+
+ newmode->crtc_h_sync_strt_wid = ((hsync_start & 0x1fff) |
+ (hsync_wid << 16) | (h_sync_pol << 23));
+
+ newmode->crtc_v_total_disp = ((vTotal - 1) & 0xffff) |
+ ((mode->yres - 1) << 16);
+
+ newmode->crtc_v_sync_strt_wid = (((vSyncStart - 1) & 0xfff) |
+ (vsync_wid << 16) | (v_sync_pol << 23));
+
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED)) {
+ /* We first calculate the engine pitch */
+ rinfo->pitch = ((mode->xres_virtual * ((mode->bits_per_pixel + 1) / 8) + 0x3f)
+ & ~(0x3f)) >> 6;
+
+ /* Then, re-multiply it to get the CRTC pitch */
+ newmode->crtc_pitch = (rinfo->pitch << 3) / ((mode->bits_per_pixel + 1) / 8);
+ } else
+ newmode->crtc_pitch = (mode->xres_virtual >> 3);
+
+ newmode->crtc_pitch |= (newmode->crtc_pitch << 16);
+
+ /*
+ * It looks like recent chips have a problem with SURFACE_CNTL,
+ * setting SURF_TRANSLATION_DIS completely disables the
+ * swapper as well, so we leave it unset now.
+ */
+ newmode->surface_cntl = 0;
+
+#if defined(__BIG_ENDIAN)
+
+ /* Setup swapping on both apertures, though we currently
+ * only use aperture 0, enabling swapper on aperture 1
+ * won't harm
+ */
+ switch (mode->bits_per_pixel) {
+ case 16:
+ newmode->surface_cntl |= NONSURF_AP0_SWP_16BPP;
+ newmode->surface_cntl |= NONSURF_AP1_SWP_16BPP;
+ break;
+ case 24:
+ case 32:
+ newmode->surface_cntl |= NONSURF_AP0_SWP_32BPP;
+ newmode->surface_cntl |= NONSURF_AP1_SWP_32BPP;
+ break;
+ }
+#endif
+
+ /* Clear surface registers */
+ for (i=0; i<8; i++) {
+ newmode->surf_lower_bound[i] = 0;
+ newmode->surf_upper_bound[i] = 0x1f;
+ newmode->surf_info[i] = 0;
+ }
+
+ RTRACE("h_total_disp = 0x%x\t hsync_strt_wid = 0x%x\n",
+ newmode->crtc_h_total_disp, newmode->crtc_h_sync_strt_wid);
+ RTRACE("v_total_disp = 0x%x\t vsync_strt_wid = 0x%x\n",
+ newmode->crtc_v_total_disp, newmode->crtc_v_sync_strt_wid);
+
+ rinfo->bpp = mode->bits_per_pixel;
+ rinfo->depth = depth;
+
+ RTRACE("pixclock = %lu\n", (unsigned long)pixClock);
+ RTRACE("freq = %lu\n", (unsigned long)freq);
+
+ /* We use PPLL_DIV_3 */
+ newmode->clk_cntl_index = 0x300;
+
+ /* Calculate PPLL value if necessary */
+ if (!nopllcalc)
+ radeon_calc_pll_regs(rinfo, newmode, freq);
+
+ newmode->vclk_ecp_cntl = rinfo->init_state.vclk_ecp_cntl;
+
+ if ((primary_mon == MT_DFP) || (primary_mon == MT_LCD)) {
+ unsigned int hRatio, vRatio;
+
+ if (mode->xres > rinfo->panel_info.xres)
+ mode->xres = rinfo->panel_info.xres;
+ if (mode->yres > rinfo->panel_info.yres)
+ mode->yres = rinfo->panel_info.yres;
+
+ newmode->fp_horz_stretch = (((rinfo->panel_info.xres / 8) - 1)
+ << HORZ_PANEL_SHIFT);
+ newmode->fp_vert_stretch = ((rinfo->panel_info.yres - 1)
+ << VERT_PANEL_SHIFT);
+
+ if (mode->xres != rinfo->panel_info.xres) {
+ hRatio = round_div(mode->xres * HORZ_STRETCH_RATIO_MAX,
+ rinfo->panel_info.xres);
+ newmode->fp_horz_stretch = (((((unsigned long)hRatio) & HORZ_STRETCH_RATIO_MASK)) |
+ (newmode->fp_horz_stretch &
+ (HORZ_PANEL_SIZE | HORZ_FP_LOOP_STRETCH |
+ HORZ_AUTO_RATIO_INC)));
+ newmode->fp_horz_stretch |= (HORZ_STRETCH_BLEND |
+ HORZ_STRETCH_ENABLE);
+ use_rmx = 1;
+ }
+ newmode->fp_horz_stretch &= ~HORZ_AUTO_RATIO;
+
+ if (mode->yres != rinfo->panel_info.yres) {
+ vRatio = round_div(mode->yres * VERT_STRETCH_RATIO_MAX,
+ rinfo->panel_info.yres);
+ newmode->fp_vert_stretch = (((((unsigned long)vRatio) & VERT_STRETCH_RATIO_MASK)) |
+ (newmode->fp_vert_stretch &
+ (VERT_PANEL_SIZE | VERT_STRETCH_RESERVED)));
+ newmode->fp_vert_stretch |= (VERT_STRETCH_BLEND |
+ VERT_STRETCH_ENABLE);
+ use_rmx = 1;
+ }
+ newmode->fp_vert_stretch &= ~VERT_AUTO_RATIO_EN;
+
+ newmode->fp_gen_cntl = (rinfo->init_state.fp_gen_cntl & (u32)
+ ~(FP_SEL_CRTC2 |
+ FP_RMX_HVSYNC_CONTROL_EN |
+ FP_DFP_SYNC_SEL |
+ FP_CRT_SYNC_SEL |
+ FP_CRTC_LOCK_8DOT |
+ FP_USE_SHADOW_EN |
+ FP_CRTC_USE_SHADOW_VEND |
+ FP_CRT_SYNC_ALT));
+
+ newmode->fp_gen_cntl |= (FP_CRTC_DONT_SHADOW_VPAR |
+ FP_CRTC_DONT_SHADOW_HEND |
+ FP_PANEL_FORMAT);
+
+ if (IS_R300_VARIANT(rinfo) ||
+ (rinfo->family == CHIP_FAMILY_R200)) {
+ newmode->fp_gen_cntl &= ~R200_FP_SOURCE_SEL_MASK;
+ if (use_rmx)
+ newmode->fp_gen_cntl |= R200_FP_SOURCE_SEL_RMX;
+ else
+ newmode->fp_gen_cntl |= R200_FP_SOURCE_SEL_CRTC1;
+ } else
+ newmode->fp_gen_cntl |= FP_SEL_CRTC1;
+
+ newmode->lvds_gen_cntl = rinfo->init_state.lvds_gen_cntl;
+ newmode->lvds_pll_cntl = rinfo->init_state.lvds_pll_cntl;
+ newmode->tmds_crc = rinfo->init_state.tmds_crc;
+ newmode->tmds_transmitter_cntl = rinfo->init_state.tmds_transmitter_cntl;
+
+ if (primary_mon == MT_LCD) {
+ newmode->lvds_gen_cntl |= (LVDS_ON | LVDS_BLON);
+ newmode->fp_gen_cntl &= ~(FP_FPON | FP_TMDS_EN);
+ } else {
+ /* DFP */
+ newmode->fp_gen_cntl |= (FP_FPON | FP_TMDS_EN);
+ newmode->tmds_transmitter_cntl &= ~(TMDS_PLLRST);
+ /* TMDS_PLL_EN bit is reversed on RV (and mobility) chips */
+ if (IS_R300_VARIANT(rinfo) ||
+ (rinfo->family == CHIP_FAMILY_R200) || !rinfo->has_CRTC2)
+ newmode->tmds_transmitter_cntl &= ~TMDS_PLL_EN;
+ else
+ newmode->tmds_transmitter_cntl |= TMDS_PLL_EN;
+ newmode->crtc_ext_cntl &= ~CRTC_CRT_ON;
+ }
+
+ newmode->fp_crtc_h_total_disp = (((rinfo->panel_info.hblank / 8) & 0x3ff) |
+ (((mode->xres / 8) - 1) << 16));
+ newmode->fp_crtc_v_total_disp = (rinfo->panel_info.vblank & 0xffff) |
+ ((mode->yres - 1) << 16);
+ newmode->fp_h_sync_strt_wid = ((rinfo->panel_info.hOver_plus & 0x1fff) |
+ (hsync_wid << 16) | (h_sync_pol << 23));
+ newmode->fp_v_sync_strt_wid = ((rinfo->panel_info.vOver_plus & 0xfff) |
+ (vsync_wid << 16) | (v_sync_pol << 23));
+ }
+
+ /* do it! */
+ if (!rinfo->asleep) {
+ memcpy(&rinfo->state, newmode, sizeof(*newmode));
+ radeon_write_mode (rinfo, newmode, 0);
+ /* (re)initialize the engine */
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED))
+ radeonfb_engine_init (rinfo);
+ }
+ /* Update fix */
+ if (!(info->flags & FBINFO_HWACCEL_DISABLED))
+ info->fix.line_length = rinfo->pitch*64;
+ else
+ info->fix.line_length = mode->xres_virtual
+ * ((mode->bits_per_pixel + 1) / 8);
+ info->fix.visual = rinfo->depth == 8 ? FB_VISUAL_PSEUDOCOLOR
+ : FB_VISUAL_DIRECTCOLOR;
+
+#ifdef CONFIG_BOOTX_TEXT
+ /* Update debug text engine */
+ btext_update_display(rinfo->fb_base_phys, mode->xres, mode->yres,
+ rinfo->depth, info->fix.line_length);
+#endif
+
+ kfree(newmode);
+ return 0;
+}
+
+
+static struct fb_ops radeonfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = radeonfb_check_var,
+ .fb_set_par = radeonfb_set_par,
+ .fb_setcolreg = radeonfb_setcolreg,
+ .fb_pan_display = radeonfb_pan_display,
+ .fb_blank = radeonfb_blank,
+ .fb_ioctl = radeonfb_ioctl,
+ .fb_sync = radeonfb_sync,
+ .fb_fillrect = radeonfb_fillrect,
+ .fb_copyarea = radeonfb_copyarea,
+ .fb_imageblit = radeonfb_imageblit,
+ .fb_cursor = soft_cursor,
+};
+
+
+static int __devinit radeon_set_fbinfo (struct radeonfb_info *rinfo)
+{
+ struct fb_info *info = rinfo->info;
+
+ info->par = rinfo;
+ info->pseudo_palette = rinfo->pseudo_palette;
+ info->flags = FBINFO_DEFAULT
+ | FBINFO_HWACCEL_COPYAREA
+ | FBINFO_HWACCEL_FILLRECT
+ | FBINFO_HWACCEL_XPAN
+ | FBINFO_HWACCEL_YPAN;
+ info->fbops = &radeonfb_ops;
+ info->screen_base = rinfo->fb_base;
+ info->screen_size = rinfo->mapped_vram;
+ /* Fill fix common fields */
+ strlcpy(info->fix.id, rinfo->name, sizeof(info->fix.id));
+ info->fix.smem_start = rinfo->fb_base_phys;
+ info->fix.smem_len = rinfo->video_ram;
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
+ info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+ info->fix.xpanstep = 8;
+ info->fix.ypanstep = 1;
+ info->fix.ywrapstep = 0;
+ info->fix.type_aux = 0;
+ info->fix.mmio_start = rinfo->mmio_base_phys;
+ info->fix.mmio_len = RADEON_REGSIZE;
+ info->fix.accel = FB_ACCEL_ATI_RADEON;
+
+ fb_alloc_cmap(&info->cmap, 256, 0);
+
+ if (noaccel)
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+
+ return 0;
+}
+
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+
+/* TODO: Dbl check these tables, we don't go up to full ON backlight
+ * in these, possibly because we noticed MacOS doesn't, but I'd prefer
+ * having some more official numbers from ATI
+ */
+static int backlight_conv_m6[] = {
+ 0xff, 0xc0, 0xb5, 0xaa, 0x9f, 0x94, 0x89, 0x7e,
+ 0x73, 0x68, 0x5d, 0x52, 0x47, 0x3c, 0x31, 0x24
+};
+static int backlight_conv_m7[] = {
+ 0x00, 0x3f, 0x4a, 0x55, 0x60, 0x6b, 0x76, 0x81,
+ 0x8c, 0x97, 0xa2, 0xad, 0xb8, 0xc3, 0xce, 0xd9
+};
+
+#define BACKLIGHT_LVDS_OFF
+#undef BACKLIGHT_DAC_OFF
+
+/* We turn off the LCD completely instead of just dimming the backlight.
+ * This provides some greater power saving and the display is useless
+ * without backlight anyway.
+ */
+static int radeon_set_backlight_enable(int on, int level, void *data)
+{
+ struct radeonfb_info *rinfo = (struct radeonfb_info *)data;
+ u32 lvds_gen_cntl, tmpPixclksCntl;
+ int* conv_table;
+
+ if (rinfo->mon1_type != MT_LCD)
+ return 0;
+
+ /* Pardon me for that hack... maybe some day we can figure
+ * out in what direction backlight should work on a given
+ * panel ?
+ */
+ if ((rinfo->family == CHIP_FAMILY_RV200 ||
+ rinfo->family == CHIP_FAMILY_RV250 ||
+ rinfo->family == CHIP_FAMILY_RV280 ||
+ rinfo->family == CHIP_FAMILY_RV350) &&
+ !machine_is_compatible("PowerBook4,3") &&
+ !machine_is_compatible("PowerBook6,3") &&
+ !machine_is_compatible("PowerBook6,5"))
+ conv_table = backlight_conv_m7;
+ else
+ conv_table = backlight_conv_m6;
+
+ del_timer_sync(&rinfo->lvds_timer);
+ radeon_engine_idle();
+
+ lvds_gen_cntl = INREG(LVDS_GEN_CNTL);
+ if (on && (level > BACKLIGHT_OFF)) {
+ lvds_gen_cntl &= ~LVDS_DISPLAY_DIS;
+ if (!(lvds_gen_cntl & LVDS_BLON) || !(lvds_gen_cntl & LVDS_ON)) {
+ lvds_gen_cntl |= (rinfo->init_state.lvds_gen_cntl & LVDS_DIGON);
+ lvds_gen_cntl |= LVDS_BLON | LVDS_EN;
+ OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
+ lvds_gen_cntl &= ~LVDS_BL_MOD_LEVEL_MASK;
+ lvds_gen_cntl |= (conv_table[level] <<
+ LVDS_BL_MOD_LEVEL_SHIFT);
+ lvds_gen_cntl |= LVDS_ON;
+ lvds_gen_cntl |= (rinfo->init_state.lvds_gen_cntl & LVDS_BL_MOD_EN);
+ rinfo->pending_lvds_gen_cntl = lvds_gen_cntl;
+ mod_timer(&rinfo->lvds_timer,
+ jiffies + msecs_to_jiffies(rinfo->panel_info.pwr_delay));
+ } else {
+ lvds_gen_cntl &= ~LVDS_BL_MOD_LEVEL_MASK;
+ lvds_gen_cntl |= (conv_table[level] <<
+ LVDS_BL_MOD_LEVEL_SHIFT);
+ OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
+ }
+ rinfo->init_state.lvds_gen_cntl &= ~LVDS_STATE_MASK;
+ rinfo->init_state.lvds_gen_cntl |= rinfo->pending_lvds_gen_cntl
+ & LVDS_STATE_MASK;
+ } else {
+ /* Asic bug, when turning off LVDS_ON, we have to make sure
+ RADEON_PIXCLK_LVDS_ALWAYS_ON bit is off
+ */
+ tmpPixclksCntl = INPLL(PIXCLKS_CNTL);
+ if (rinfo->is_mobility || rinfo->is_IGP)
+ OUTPLLP(PIXCLKS_CNTL, 0, ~PIXCLK_LVDS_ALWAYS_ONb);
+ lvds_gen_cntl &= ~(LVDS_BL_MOD_LEVEL_MASK | LVDS_BL_MOD_EN);
+ lvds_gen_cntl |= (conv_table[0] <<
+ LVDS_BL_MOD_LEVEL_SHIFT);
+ lvds_gen_cntl |= LVDS_DISPLAY_DIS;
+ OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
+ udelay(100);
+ lvds_gen_cntl &= ~(LVDS_ON | LVDS_EN);
+ OUTREG(LVDS_GEN_CNTL, lvds_gen_cntl);
+ lvds_gen_cntl &= ~(LVDS_DIGON);
+ rinfo->pending_lvds_gen_cntl = lvds_gen_cntl;
+ mod_timer(&rinfo->lvds_timer,
+ jiffies + msecs_to_jiffies(rinfo->panel_info.pwr_delay));
+ if (rinfo->is_mobility || rinfo->is_IGP)
+ OUTPLL(PIXCLKS_CNTL, tmpPixclksCntl);
+ }
+ rinfo->init_state.lvds_gen_cntl &= ~LVDS_STATE_MASK;
+ rinfo->init_state.lvds_gen_cntl |= (lvds_gen_cntl & LVDS_STATE_MASK);
+
+ return 0;
+}
+
+
+static int radeon_set_backlight_level(int level, void *data)
+{
+ return radeon_set_backlight_enable(1, level, data);
+}
+#endif /* CONFIG_PMAC_BACKLIGHT */
+
+
+/*
+ * This reconfigure the card's internal memory map. In theory, we'd like
+ * to setup the card's memory at the same address as it's PCI bus address,
+ * and the AGP aperture right after that so that system RAM on 32 bits
+ * machines at least, is directly accessible. However, doing so would
+ * conflict with the current XFree drivers...
+ * Ultimately, I hope XFree, GATOS and ATI binary drivers will all agree
+ * on the proper way to set this up and duplicate this here. In the meantime,
+ * I put the card's memory at 0 in card space and AGP at some random high
+ * local (0xe0000000 for now) that will be changed by XFree/DRI anyway
+ */
+#ifdef CONFIG_PPC_OF
+#undef SET_MC_FB_FROM_APERTURE
+static void fixup_memory_mappings(struct radeonfb_info *rinfo)
+{
+ u32 save_crtc_gen_cntl, save_crtc2_gen_cntl = 0;
+ u32 save_crtc_ext_cntl;
+ u32 aper_base, aper_size;
+ u32 agp_base;
+
+ /* First, we disable display to avoid interfering */
+ if (rinfo->has_CRTC2) {
+ save_crtc2_gen_cntl = INREG(CRTC2_GEN_CNTL);
+ OUTREG(CRTC2_GEN_CNTL, save_crtc2_gen_cntl | CRTC2_DISP_REQ_EN_B);
+ }
+ save_crtc_gen_cntl = INREG(CRTC_GEN_CNTL);
+ save_crtc_ext_cntl = INREG(CRTC_EXT_CNTL);
+
+ OUTREG(CRTC_EXT_CNTL, save_crtc_ext_cntl | CRTC_DISPLAY_DIS);
+ OUTREG(CRTC_GEN_CNTL, save_crtc_gen_cntl | CRTC_DISP_REQ_EN_B);
+ mdelay(100);
+
+ aper_base = INREG(CONFIG_APER_0_BASE);
+ aper_size = INREG(CONFIG_APER_SIZE);
+
+#ifdef SET_MC_FB_FROM_APERTURE
+ /* Set framebuffer to be at the same address as set in PCI BAR */
+ OUTREG(MC_FB_LOCATION,
+ ((aper_base + aper_size - 1) & 0xffff0000) | (aper_base >> 16));
+ rinfo->fb_local_base = aper_base;
+#else
+ OUTREG(MC_FB_LOCATION, 0x7fff0000);
+ rinfo->fb_local_base = 0;
+#endif
+ agp_base = aper_base + aper_size;
+ if (agp_base & 0xf0000000)
+ agp_base = (aper_base | 0x0fffffff) + 1;
+
+ /* Set AGP to be just after the framebuffer on a 256Mb boundary. This
+ * assumes the FB isn't mapped to 0xf0000000 or above, but this is
+ * always the case on PPCs afaik.
+ */
+#ifdef SET_MC_FB_FROM_APERTURE
+ OUTREG(MC_AGP_LOCATION, 0xffff0000 | (agp_base >> 16));
+#else
+ OUTREG(MC_AGP_LOCATION, 0xffffe000);
+#endif
+
+ /* Fixup the display base addresses & engine offsets while we
+ * are at it as well
+ */
+#ifdef SET_MC_FB_FROM_APERTURE
+ OUTREG(DISPLAY_BASE_ADDR, aper_base);
+ if (rinfo->has_CRTC2)
+ OUTREG(CRTC2_DISPLAY_BASE_ADDR, aper_base);
+ OUTREG(OV0_BASE_ADDR, aper_base);
+#else
+ OUTREG(DISPLAY_BASE_ADDR, 0);
+ if (rinfo->has_CRTC2)
+ OUTREG(CRTC2_DISPLAY_BASE_ADDR, 0);
+ OUTREG(OV0_BASE_ADDR, 0);
+#endif
+ mdelay(100);
+
+ /* Restore display settings */
+ OUTREG(CRTC_GEN_CNTL, save_crtc_gen_cntl);
+ OUTREG(CRTC_EXT_CNTL, save_crtc_ext_cntl);
+ if (rinfo->has_CRTC2)
+ OUTREG(CRTC2_GEN_CNTL, save_crtc2_gen_cntl);
+
+ RTRACE("aper_base: %08x MC_FB_LOC to: %08x, MC_AGP_LOC to: %08x\n",
+ aper_base,
+ ((aper_base + aper_size - 1) & 0xffff0000) | (aper_base >> 16),
+ 0xffff0000 | (agp_base >> 16));
+}
+#endif /* CONFIG_PPC_OF */
+
+
+static void radeon_identify_vram(struct radeonfb_info *rinfo)
+{
+ u32 tmp;
+
+ /* framebuffer size */
+ if ((rinfo->family == CHIP_FAMILY_RS100) ||
+ (rinfo->family == CHIP_FAMILY_RS200) ||
+ (rinfo->family == CHIP_FAMILY_RS300)) {
+ u32 tom = INREG(NB_TOM);
+ tmp = ((((tom >> 16) - (tom & 0xffff) + 1) << 6) * 1024);
+
+ radeon_fifo_wait(6);
+ OUTREG(MC_FB_LOCATION, tom);
+ OUTREG(DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
+ OUTREG(CRTC2_DISPLAY_BASE_ADDR, (tom & 0xffff) << 16);
+ OUTREG(OV0_BASE_ADDR, (tom & 0xffff) << 16);
+
+ /* This is supposed to fix the crtc2 noise problem. */
+ OUTREG(GRPH2_BUFFER_CNTL, INREG(GRPH2_BUFFER_CNTL) & ~0x7f0000);
+
+ if ((rinfo->family == CHIP_FAMILY_RS100) ||
+ (rinfo->family == CHIP_FAMILY_RS200)) {
+ /* This is to workaround the asic bug for RMX, some versions
+ of BIOS dosen't have this register initialized correctly.
+ */
+ OUTREGP(CRTC_MORE_CNTL, CRTC_H_CUTOFF_ACTIVE_EN,
+ ~CRTC_H_CUTOFF_ACTIVE_EN);
+ }
+ } else {
+ tmp = INREG(CONFIG_MEMSIZE);
+ }
+
+ /* mem size is bits [28:0], mask off the rest */
+ rinfo->video_ram = tmp & CONFIG_MEMSIZE_MASK;
+
+ /*
+ * Hack to get around some busted production M6's
+ * reporting no ram
+ */
+ if (rinfo->video_ram == 0) {
+ switch (rinfo->pdev->device) {
+ case PCI_CHIP_RADEON_LY:
+ case PCI_CHIP_RADEON_LZ:
+ rinfo->video_ram = 8192 * 1024;
+ break;
+ default:
+ break;
+ }
+ }
+
+
+ /*
+ * Now try to identify VRAM type
+ */
+ if (rinfo->is_IGP || (rinfo->family >= CHIP_FAMILY_R300) ||
+ (INREG(MEM_SDRAM_MODE_REG) & (1<<30)))
+ rinfo->vram_ddr = 1;
+ else
+ rinfo->vram_ddr = 0;
+
+ tmp = INREG(MEM_CNTL);
+ if (IS_R300_VARIANT(rinfo)) {
+ tmp &= R300_MEM_NUM_CHANNELS_MASK;
+ switch (tmp) {
+ case 0: rinfo->vram_width = 64; break;
+ case 1: rinfo->vram_width = 128; break;
+ case 2: rinfo->vram_width = 256; break;
+ default: rinfo->vram_width = 128; break;
+ }
+ } else if ((rinfo->family == CHIP_FAMILY_RV100) ||
+ (rinfo->family == CHIP_FAMILY_RS100) ||
+ (rinfo->family == CHIP_FAMILY_RS200)){
+ if (tmp & RV100_MEM_HALF_MODE)
+ rinfo->vram_width = 32;
+ else
+ rinfo->vram_width = 64;
+ } else {
+ if (tmp & MEM_NUM_CHANNELS_MASK)
+ rinfo->vram_width = 128;
+ else
+ rinfo->vram_width = 64;
+ }
+
+ /* This may not be correct, as some cards can have half of channel disabled
+ * ToDo: identify these cases
+ */
+
+ RTRACE("radeonfb (%s): Found %ldk of %s %d bits wide videoram\n",
+ pci_name(rinfo->pdev),
+ rinfo->video_ram / 1024,
+ rinfo->vram_ddr ? "DDR" : "SDRAM",
+ rinfo->vram_width);
+}
+
+/*
+ * Sysfs
+ */
+
+static ssize_t radeon_show_one_edid(char *buf, loff_t off, size_t count, const u8 *edid)
+{
+ if (off > EDID_LENGTH)
+ return 0;
+
+ if (off + count > EDID_LENGTH)
+ count = EDID_LENGTH - off;
+
+ memcpy(buf, edid + off, count);
+
+ return count;
+}
+
+
+static ssize_t radeon_show_edid1(struct kobject *kobj, char *buf, loff_t off, size_t count)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct fb_info *info = pci_get_drvdata(pdev);
+ struct radeonfb_info *rinfo = info->par;
+
+ return radeon_show_one_edid(buf, off, count, rinfo->mon1_EDID);
+}
+
+
+static ssize_t radeon_show_edid2(struct kobject *kobj, char *buf, loff_t off, size_t count)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct fb_info *info = pci_get_drvdata(pdev);
+ struct radeonfb_info *rinfo = info->par;
+
+ return radeon_show_one_edid(buf, off, count, rinfo->mon2_EDID);
+}
+
+static struct bin_attribute edid1_attr = {
+ .attr = {
+ .name = "edid1",
+ .owner = THIS_MODULE,
+ .mode = 0444,
+ },
+ .size = EDID_LENGTH,
+ .read = radeon_show_edid1,
+};
+
+static struct bin_attribute edid2_attr = {
+ .attr = {
+ .name = "edid2",
+ .owner = THIS_MODULE,
+ .mode = 0444,
+ },
+ .size = EDID_LENGTH,
+ .read = radeon_show_edid2,
+};
+
+
+static int radeonfb_pci_register (struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct fb_info *info;
+ struct radeonfb_info *rinfo;
+ int ret;
+
+ RTRACE("radeonfb_pci_register BEGIN\n");
+
+ /* Enable device in PCI config */
+ ret = pci_enable_device(pdev);
+ if (ret < 0) {
+ printk(KERN_ERR "radeonfb (%s): Cannot enable PCI device\n",
+ pci_name(pdev));
+ goto err_out;
+ }
+
+ info = framebuffer_alloc(sizeof(struct radeonfb_info), &pdev->dev);
+ if (!info) {
+ printk (KERN_ERR "radeonfb (%s): could not allocate memory\n",
+ pci_name(pdev));
+ ret = -ENOMEM;
+ goto err_disable;
+ }
+ rinfo = info->par;
+ rinfo->info = info;
+ rinfo->pdev = pdev;
+
+ spin_lock_init(&rinfo->reg_lock);
+ init_timer(&rinfo->lvds_timer);
+ rinfo->lvds_timer.function = radeon_lvds_timer_func;
+ rinfo->lvds_timer.data = (unsigned long)rinfo;
+
+ strcpy(rinfo->name, "ATI Radeon XX ");
+ rinfo->name[11] = ent->device >> 8;
+ rinfo->name[12] = ent->device & 0xFF;
+ rinfo->family = ent->driver_data & CHIP_FAMILY_MASK;
+ rinfo->chipset = pdev->device;
+ rinfo->has_CRTC2 = (ent->driver_data & CHIP_HAS_CRTC2) != 0;
+ rinfo->is_mobility = (ent->driver_data & CHIP_IS_MOBILITY) != 0;
+ rinfo->is_IGP = (ent->driver_data & CHIP_IS_IGP) != 0;
+
+ /* Set base addrs */
+ rinfo->fb_base_phys = pci_resource_start (pdev, 0);
+ rinfo->mmio_base_phys = pci_resource_start (pdev, 2);
+
+ /* request the mem regions */
+ ret = pci_request_regions(pdev, "radeonfb");
+ if (ret < 0) {
+ printk( KERN_ERR "radeonfb (%s): cannot reserve PCI regions."
+ " Someone already got them?\n", pci_name(rinfo->pdev));
+ goto err_release_fb;
+ }
+
+ /* map the regions */
+ rinfo->mmio_base = ioremap(rinfo->mmio_base_phys, RADEON_REGSIZE);
+ if (!rinfo->mmio_base) {
+ printk(KERN_ERR "radeonfb (%s): cannot map MMIO\n", pci_name(rinfo->pdev));
+ ret = -EIO;
+ goto err_release_pci;
+ }
+
+ rinfo->fb_local_base = INREG(MC_FB_LOCATION) << 16;
+
+ /*
+ * Check for errata
+ */
+ rinfo->errata = 0;
+ if (rinfo->family == CHIP_FAMILY_R300 &&
+ (INREG(CONFIG_CNTL) & CFG_ATI_REV_ID_MASK)
+ == CFG_ATI_REV_A11)
+ rinfo->errata |= CHIP_ERRATA_R300_CG;
+
+ if (rinfo->family == CHIP_FAMILY_RV200 ||
+ rinfo->family == CHIP_FAMILY_RS200)
+ rinfo->errata |= CHIP_ERRATA_PLL_DUMMYREADS;
+
+ if (rinfo->family == CHIP_FAMILY_RV100 ||
+ rinfo->family == CHIP_FAMILY_RS100 ||
+ rinfo->family == CHIP_FAMILY_RS200)
+ rinfo->errata |= CHIP_ERRATA_PLL_DELAY;
+
+#ifdef CONFIG_PPC_OF
+ /* On PPC, we obtain the OF device-node pointer to the firmware
+ * data for this chip
+ */
+ rinfo->of_node = pci_device_to_OF_node(pdev);
+ if (rinfo->of_node == NULL)
+ printk(KERN_WARNING "radeonfb (%s): Cannot match card to OF node !\n",
+ pci_name(rinfo->pdev));
+
+ /* On PPC, the firmware sets up a memory mapping that tends
+ * to cause lockups when enabling the engine. We reconfigure
+ * the card internal memory mappings properly
+ */
+ fixup_memory_mappings(rinfo);
+#endif /* CONFIG_PPC_OF */
+
+ /* Get VRAM size and type */
+ radeon_identify_vram(rinfo);
+
+ rinfo->mapped_vram = min_t(unsigned long, MAX_MAPPED_VRAM, rinfo->video_ram);
+
+ do {
+ rinfo->fb_base = ioremap (rinfo->fb_base_phys,
+ rinfo->mapped_vram);
+ } while ( rinfo->fb_base == 0 &&
+ ((rinfo->mapped_vram /=2) >= MIN_MAPPED_VRAM) );
+
+ if (rinfo->fb_base)
+ memset_io(rinfo->fb_base, 0, rinfo->mapped_vram);
+ else {
+ printk (KERN_ERR "radeonfb (%s): cannot map FB\n", pci_name(rinfo->pdev));
+ ret = -EIO;
+ goto err_unmap_rom;
+ }
+
+ RTRACE("radeonfb (%s): mapped %ldk videoram\n", pci_name(rinfo->pdev),
+ rinfo->mapped_vram/1024);
+
+ /*
+ * Map the BIOS ROM if any and retreive PLL parameters from
+ * the BIOS. We skip that on mobility chips as the real panel
+ * values we need aren't in the ROM but in the BIOS image in
+ * memory. This is definitely not the best meacnism though,
+ * we really need the arch code to tell us which is the "primary"
+ * video adapter to use the memory image (or better, the arch
+ * should provide us a copy of the BIOS image to shield us from
+ * archs who would store that elsewhere and/or could initialize
+ * more than one adapter during boot).
+ */
+ if (!rinfo->is_mobility)
+ radeon_map_ROM(rinfo, pdev);
+
+ /*
+ * On x86, the primary display on laptop may have it's BIOS
+ * ROM elsewhere, try to locate it at the legacy memory hole.
+ * We probably need to make sure this is the primary display,
+ * but that is difficult without some arch support.
+ */
+#ifdef CONFIG_X86
+ if (rinfo->bios_seg == NULL)
+ radeon_find_mem_vbios(rinfo);
+#endif
+
+ /* If both above failed, try the BIOS ROM again for mobility
+ * chips
+ */
+ if (rinfo->bios_seg == NULL && rinfo->is_mobility)
+ radeon_map_ROM(rinfo, pdev);
+
+ /* Get informations about the board's PLL */
+ radeon_get_pllinfo(rinfo);
+
+#ifdef CONFIG_FB_RADEON_I2C
+ /* Register I2C bus */
+ radeon_create_i2c_busses(rinfo);
+#endif
+
+ /* set all the vital stuff */
+ radeon_set_fbinfo (rinfo);
+
+ /* Probe screen types */
+ radeon_probe_screens(rinfo, monitor_layout, ignore_edid);
+
+ /* Build mode list, check out panel native model */
+ radeon_check_modes(rinfo, mode_option);
+
+ /* Register some sysfs stuff (should be done better) */
+ if (rinfo->mon1_EDID)
+ sysfs_create_bin_file(&rinfo->pdev->dev.kobj, &edid1_attr);
+ if (rinfo->mon2_EDID)
+ sysfs_create_bin_file(&rinfo->pdev->dev.kobj, &edid2_attr);
+
+ /* save current mode regs before we switch into the new one
+ * so we can restore this upon __exit
+ */
+ radeon_save_state (rinfo, &rinfo->init_state);
+ memcpy(&rinfo->state, &rinfo->init_state, sizeof(struct radeon_regs));
+
+ /* Setup Power Management capabilities */
+ if (default_dynclk < -1) {
+ /* -2 is special: means ON on mobility chips and do not
+ * change on others
+ */
+ radeonfb_pm_init(rinfo, rinfo->is_mobility ? 1 : -1);
+ } else
+ radeonfb_pm_init(rinfo, default_dynclk);
+
+ pci_set_drvdata(pdev, info);
+
+ /* Register with fbdev layer */
+ ret = register_framebuffer(info);
+ if (ret < 0) {
+ printk (KERN_ERR "radeonfb (%s): could not register framebuffer\n",
+ pci_name(rinfo->pdev));
+ goto err_unmap_fb;
+ }
+
+#ifdef CONFIG_MTRR
+ rinfo->mtrr_hdl = nomtrr ? -1 : mtrr_add(rinfo->fb_base_phys,
+ rinfo->video_ram,
+ MTRR_TYPE_WRCOMB, 1);
+#endif
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+ if (rinfo->mon1_type == MT_LCD) {
+ register_backlight_controller(&radeon_backlight_controller,
+ rinfo, "ati");
+ register_backlight_controller(&radeon_backlight_controller,
+ rinfo, "mnca");
+ }
+#endif
+
+ printk ("radeonfb (%s): %s\n", pci_name(rinfo->pdev), rinfo->name);
+
+ if (rinfo->bios_seg)
+ radeon_unmap_ROM(rinfo, pdev);
+ RTRACE("radeonfb_pci_register END\n");
+
+ return 0;
+err_unmap_fb:
+ iounmap(rinfo->fb_base);
+err_unmap_rom:
+ kfree(rinfo->mon1_EDID);
+ kfree(rinfo->mon2_EDID);
+ if (rinfo->mon1_modedb)
+ fb_destroy_modedb(rinfo->mon1_modedb);
+ fb_dealloc_cmap(&info->cmap);
+#ifdef CONFIG_FB_RADEON_I2C
+ radeon_delete_i2c_busses(rinfo);
+#endif
+ if (rinfo->bios_seg)
+ radeon_unmap_ROM(rinfo, pdev);
+ iounmap(rinfo->mmio_base);
+err_release_pci:
+ pci_release_regions(pdev);
+err_release_fb:
+ framebuffer_release(info);
+err_disable:
+ pci_disable_device(pdev);
+err_out:
+ return ret;
+}
+
+
+
+static void __devexit radeonfb_pci_unregister (struct pci_dev *pdev)
+{
+ struct fb_info *info = pci_get_drvdata(pdev);
+ struct radeonfb_info *rinfo = info->par;
+
+ if (!rinfo)
+ return;
+
+ radeonfb_pm_exit(rinfo);
+
+#if 0
+ /* restore original state
+ *
+ * Doesn't quite work yet, I suspect if we come from a legacy
+ * VGA mode (or worse, text mode), we need to do some VGA black
+ * magic here that I know nothing about. --BenH
+ */
+ radeon_write_mode (rinfo, &rinfo->init_state, 1);
+ #endif
+
+ del_timer_sync(&rinfo->lvds_timer);
+
+#ifdef CONFIG_MTRR
+ if (rinfo->mtrr_hdl >= 0)
+ mtrr_del(rinfo->mtrr_hdl, 0, 0);
+#endif
+
+ unregister_framebuffer(info);
+
+ iounmap(rinfo->mmio_base);
+ iounmap(rinfo->fb_base);
+
+ pci_release_regions(pdev);
+
+ kfree(rinfo->mon1_EDID);
+ kfree(rinfo->mon2_EDID);
+ if (rinfo->mon1_modedb)
+ fb_destroy_modedb(rinfo->mon1_modedb);
+#ifdef CONFIG_FB_RADEON_I2C
+ radeon_delete_i2c_busses(rinfo);
+#endif
+ fb_dealloc_cmap(&info->cmap);
+ framebuffer_release(info);
+ pci_disable_device(pdev);
+}
+
+
+static struct pci_driver radeonfb_driver = {
+ .name = "radeonfb",
+ .id_table = radeonfb_pci_table,
+ .probe = radeonfb_pci_register,
+ .remove = __devexit_p(radeonfb_pci_unregister),
+#ifdef CONFIG_PM
+ .suspend = radeonfb_pci_suspend,
+ .resume = radeonfb_pci_resume,
+#endif /* CONFIG_PM */
+};
+
+#ifndef MODULE
+static int __init radeonfb_setup (char *options)
+{
+ char *this_opt;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((this_opt = strsep (&options, ",")) != NULL) {
+ if (!*this_opt)
+ continue;
+
+ if (!strncmp(this_opt, "noaccel", 7)) {
+ noaccel = 1;
+ } else if (!strncmp(this_opt, "mirror", 6)) {
+ mirror = 1;
+ } else if (!strncmp(this_opt, "force_dfp", 9)) {
+ force_dfp = 1;
+ } else if (!strncmp(this_opt, "panel_yres:", 11)) {
+ panel_yres = simple_strtoul((this_opt+11), NULL, 0);
+#ifdef CONFIG_MTRR
+ } else if (!strncmp(this_opt, "nomtrr", 6)) {
+ nomtrr = 1;
+#endif
+ } else if (!strncmp(this_opt, "nomodeset", 9)) {
+ nomodeset = 1;
+ } else if (!strncmp(this_opt, "force_measure_pll", 17)) {
+ force_measure_pll = 1;
+ } else if (!strncmp(this_opt, "ignore_edid", 11)) {
+ ignore_edid = 1;
+ } else
+ mode_option = this_opt;
+ }
+ return 0;
+}
+#endif /* MODULE */
+
+static int __init radeonfb_init (void)
+{
+#ifndef MODULE
+ char *option = NULL;
+
+ if (fb_get_options("radeonfb", &option))
+ return -ENODEV;
+ radeonfb_setup(option);
+#endif
+ return pci_register_driver (&radeonfb_driver);
+}
+
+
+static void __exit radeonfb_exit (void)
+{
+ pci_unregister_driver (&radeonfb_driver);
+}
+
+module_init(radeonfb_init);
+module_exit(radeonfb_exit);
+
+MODULE_AUTHOR("Ani Joshi");
+MODULE_DESCRIPTION("framebuffer driver for ATI Radeon chipset");
+MODULE_LICENSE("GPL");
+module_param(noaccel, bool, 0);
+module_param(default_dynclk, int, 0);
+MODULE_PARM_DESC(default_dynclk, "int: -2=enable on mobility only,-1=do not change,0=off,1=on");
+MODULE_PARM_DESC(noaccel, "bool: disable acceleration");
+module_param(nomodeset, bool, 0);
+MODULE_PARM_DESC(nomodeset, "bool: disable actual setting of video mode");
+module_param(mirror, bool, 0);
+MODULE_PARM_DESC(mirror, "bool: mirror the display to both monitors");
+module_param(force_dfp, bool, 0);
+MODULE_PARM_DESC(force_dfp, "bool: force display to dfp");
+module_param(ignore_edid, bool, 0);
+MODULE_PARM_DESC(ignore_edid, "bool: Ignore EDID data when doing DDC probe");
+module_param(monitor_layout, charp, 0);
+MODULE_PARM_DESC(monitor_layout, "Specify monitor mapping (like XFree86)");
+module_param(force_measure_pll, bool, 0);
+MODULE_PARM_DESC(force_measure_pll, "Force measurement of PLL (debug)");
+#ifdef CONFIG_MTRR
+module_param(nomtrr, bool, 0);
+MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
+#endif
+module_param(panel_yres, int, 0);
+MODULE_PARM_DESC(panel_yres, "int: set panel yres");
+module_param(mode_option, charp, 0);
+MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 05:49:58 +0000