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[src/trunk]: src/sys/dev/pci Add a basic driver for the SIS315 Pro frame buff...
details: https://anonhg.NetBSD.org/src/rev/3b95769172e6
branches: trunk
changeset: 768776:3b95769172e6
user: bouyer <bouyer%NetBSD.org@localhost>
date: Sat Aug 27 13:28:37 2011 +0000
description:
Add a basic driver for the SIS315 Pro frame buffer found on some loogson2-based
systems, from OpenBSD.
At this time it can only map the framebuffer and attaches wscons,
using whatever resolution was configured by the firmware.
It doens't support any accelaration or mode change.
diffstat:
sys/dev/pci/files.pci | 6 +-
sys/dev/pci/sisfb.c | 755 ++++++++++++++++++++++++++++++++++++++++++++++++++
sys/dev/pci/sisfb.h | 3 +
3 files changed, 763 insertions(+), 1 deletions(-)
diffs (truncated from 783 to 300 lines):
diff -r ffeaa67c0bee -r 3b95769172e6 sys/dev/pci/files.pci
--- a/sys/dev/pci/files.pci Sat Aug 27 13:23:52 2011 +0000
+++ b/sys/dev/pci/files.pci Sat Aug 27 13:28:37 2011 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.pci,v 1.346 2011/08/24 20:27:35 dyoung Exp $
+# $NetBSD: files.pci,v 1.347 2011/08/27 13:28:37 bouyer Exp $
#
# Config file and device description for machine-independent PCI code.
# Included by ports that need it. Requires that the SCSI files be
@@ -1080,3 +1080,7 @@
attach pwdog at pci
file dev/pci/pwdog.c pwdog
+# SIS 315 Pro frame buffer
+device sisfb: wsemuldisplaydev, rasops8, rasops15, rasops16, rasops32, vcons
+attach sisfb at pci
+file dev/pci/sisfb.c sisfb needs-flag
diff -r ffeaa67c0bee -r 3b95769172e6 sys/dev/pci/sisfb.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/pci/sisfb.c Sat Aug 27 13:28:37 2011 +0000
@@ -0,0 +1,755 @@
+/* $OpenBSD: sisfb.c,v 1.2 2010/12/26 15:40:59 miod Exp $ */
+
+/*
+ * Copyright (c) 2010 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * Minimalistic driver for the SIS315 Pro frame buffer found on the
+ * Lemote Fuloong 2F systems.
+ * Does not support accelaration, mode change, secondary output, or
+ * anything fancy.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: sisfb.c,v 1.1 2011/08/27 13:28:37 bouyer Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/bus.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcidevs.h>
+#include <dev/pci/pciio.h>
+
+#include <dev/videomode/videomode.h>
+
+#include <dev/wscons/wsdisplayvar.h>
+#include <dev/wscons/wsconsio.h>
+#include <dev/wsfont/wsfont.h>
+#include <dev/rasops/rasops.h>
+#include <dev/wscons/wsdisplay_vconsvar.h>
+#include <dev/pci/wsdisplay_pci.h>
+
+#include <dev/i2c/i2cvar.h>
+
+#include <dev/pci/sisfb.h>
+
+struct sisfb_softc;
+
+/* minimal frame buffer information, suitable for early console */
+
+struct sisfb {
+ struct sisfb_softc *sc;
+ uint8_t cmap[256 * 3];
+
+ bus_space_tag_t fbt;
+ bus_space_handle_t fbh;
+
+ bus_space_tag_t mmiot;
+ bus_space_handle_t mmioh;
+
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+
+ struct vcons_screen vcs;
+ struct wsscreen_descr wsd;
+
+ int fb_depth;
+ int fb_width;
+ int fb_height;
+ int fb_stride;
+ void *fb_addr;
+};
+
+struct sisfb_softc {
+ device_t sc_dev;
+ struct sisfb *sc_fb;
+ struct sisfb sc_fb_store;
+
+ struct vcons_data vd;
+ struct wsscreen_list sc_wsl;
+ const struct wsscreen_descr *sc_scrlist[1];
+ int sc_nscr;
+ int sc_mode;
+};
+
+int sisfb_match(device_t, cfdata_t, void *);
+void sisfb_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(sisfb, sizeof(struct sisfb_softc),
+ sisfb_match, sisfb_attach, NULL, NULL);
+
+
+int sisfb_alloc_screen(void *, const struct wsscreen_descr *, void **, int *,
+ int *, long *);
+void sisfb_free_screen(void *, void *);
+int sisfb_ioctl(void *, void *, u_long, void *, int, struct lwp *);
+int sisfb_show_screen(void *, void *, int, void (*)(void *, int, int),
+ void *);
+paddr_t sisfb_mmap(void *, void *, off_t, int);
+void sisfb_init_screen(void *, struct vcons_screen *, int, long *);
+
+
+struct wsdisplay_accessops sisfb_accessops = {
+ sisfb_ioctl,
+ sisfb_mmap,
+ sisfb_alloc_screen,
+ sisfb_free_screen,
+ sisfb_show_screen,
+ NULL, /* load_font */
+ NULL, /* poolc */
+ NULL /* scroll */
+};
+
+int sisfb_getcmap(uint8_t *, struct wsdisplay_cmap *);
+void sisfb_loadcmap(struct sisfb *, int, int);
+int sisfb_putcmap(uint8_t *, struct wsdisplay_cmap *);
+int sisfb_setup(struct sisfb *);
+
+static struct sisfb sisfbcn;
+
+/*
+ * Control Register access
+ *
+ * These are 8 bit registers; the choice of larger width types is intentional.
+ */
+
+#define SIS_VGA_PORT_OFFSET 0x380
+
+#define SEQ_ADDR (0x3c4 - SIS_VGA_PORT_OFFSET)
+#define SEQ_DATA (0x3c5 - SIS_VGA_PORT_OFFSET)
+#define DAC_ADDR (0x3c8 - SIS_VGA_PORT_OFFSET)
+#define DAC_DATA (0x3c9 - SIS_VGA_PORT_OFFSET)
+#undef CRTC_ADDR
+#define CRTC_ADDR (0x3d4 - SIS_VGA_PORT_OFFSET)
+#define CRTC_DATA (0x3d5 - SIS_VGA_PORT_OFFSET)
+
+#define CRTC_HDISPLE 0x01 /* horizontal display end */
+#define CRTC_OVERFLL 0x07 /* overflow low */
+#define CRTC_STARTADRH 0x0C /* linear start address mid */
+#define CRTC_STARTADRL 0x0D /* linear start address low */
+#define CRTC_VDE 0x12 /* vertical display end */
+
+
+static inline uint sisfb_crtc_read(struct sisfb *, uint);
+static inline void sisfb_crtc_write(struct sisfb *, uint, uint);
+static inline uint sisfb_seq_read(struct sisfb *, uint);
+static inline void sisfb_seq_write(struct sisfb *, uint, uint);
+
+static inline uint
+sisfb_crtc_read(struct sisfb *fb, uint idx)
+{
+ uint val;
+ bus_space_write_1(fb->iot, fb->ioh, CRTC_ADDR, idx);
+ val = bus_space_read_1(fb->iot, fb->ioh, CRTC_DATA);
+#ifdef SIS_DEBUG
+ printf("CRTC %04x -> %02x\n", idx, val);
+#endif
+ return val;
+}
+
+static inline void
+sisfb_crtc_write(struct sisfb *fb, uint idx, uint val)
+{
+#ifdef SIS_DEBUG
+ printf("CRTC %04x <- %02x\n", idx, val);
+#endif
+ bus_space_write_1(fb->iot, fb->ioh, CRTC_ADDR, idx);
+ bus_space_write_1(fb->iot, fb->ioh, CRTC_DATA, val);
+}
+
+static inline uint
+sisfb_seq_read(struct sisfb *fb, uint idx)
+{
+ uint val;
+ bus_space_write_1(fb->iot, fb->ioh, SEQ_ADDR, idx);
+ val = bus_space_read_1(fb->iot, fb->ioh, SEQ_DATA);
+#ifdef SIS_DEBUG
+ printf("SEQ %04x -> %02x\n", idx, val);
+#endif
+ return val;
+}
+
+static inline void
+sisfb_seq_write(struct sisfb *fb, uint idx, uint val)
+{
+#ifdef SIS_DEBUG
+ printf("SEQ %04x <- %02x\n", idx, val);
+#endif
+ bus_space_write_1(fb->iot, fb->ioh, SEQ_ADDR, idx);
+ bus_space_write_1(fb->iot, fb->ioh, SEQ_DATA, val);
+}
+
+int
+sisfb_match(device_t parent, cfdata_t match, void *aux)
+{
+ struct pci_attach_args *pa = (struct pci_attach_args *)aux;
+
+ if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY)
+ return 0;
+
+ if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_SIS)
+ return 0;
+
+ if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SIS_315PRO_VGA)
+ return 100;
+ return (0);
+}
+
+void
+sisfb_attach(device_t parent, device_t self, void *aux)
+{
+ struct sisfb_softc *sc = device_private(self);
+ struct pci_attach_args *pa = (struct pci_attach_args *)aux;
+ struct rasops_info *ri;
+ struct wsemuldisplaydev_attach_args waa;
+ bus_size_t fbsize, mmiosize, iosize;
+ struct sisfb *fb;
+ char devinfo[256];
+ int console;
+ unsigned long defattr;
+
+ sc->sc_dev = self;
+ console = sisfbcn.vcs.scr_ri.ri_hw != NULL;
+
+ if (console)
+ fb = &sisfbcn;
+ else {
+ fb = &sc->sc_fb_store;
+ }
+
+ sc->sc_fb = fb;
+ fb->sc = sc;
+
+ pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
+ aprint_normal(": %s\n", devinfo);
+
+ if (!console) {
+ fb->fbt = pa->pa_memt;
+ fb->mmiot = pa->pa_memt;
+ fb->iot = pa->pa_iot;
+ if (pci_mapreg_map(pa, PCI_MAPREG_START, PCI_MAPREG_TYPE_MEM,
+ BUS_SPACE_MAP_LINEAR, &fb->fbt, &fb->fbh, NULL, &fbsize) != 0) {
+ aprint_error_dev(self, ": can't map frame buffer\n");
+ return;
+ }
+
+ if (pci_mapreg_map(pa, PCI_MAPREG_START + 4, PCI_MAPREG_TYPE_MEM,
+ 0, &fb->mmiot, &fb->mmioh, NULL, &mmiosize) != 0) {
+ aprint_error_dev(self, ": can't map mmio area\n");
+ goto fail1;
+ }
+
+ if (pci_mapreg_map(pa, PCI_MAPREG_START + 8, PCI_MAPREG_TYPE_IO,
+ 0, &fb->iot, &fb->ioh, NULL, &iosize) != 0) {
+ aprint_error_dev(self, ": can't map registers\n");
+ goto fail2;
+ }
+
+
+ if (sisfb_setup(sc->sc_fb) != 0) {
+ aprint_error_dev(self, ": can't setup frame buffer\n");
+ goto fail3;
+ }
+ }
+
+ aprint_normal_dev(self, ": %dx%dx%d frame buffer\n",
+ fb->vcs.scr_ri.ri_width, fb->vcs.scr_ri.ri_height, fb->vcs.scr_ri.ri_depth);
+
+ fb->wsd = (struct wsscreen_descr){
+ "default",
+ 0, 0,
+ NULL,
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