/* $NetBSD: ipaq_lcd.c,v 1.20 2014/10/25 10:58:12 skrll Exp $ */ /* * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Ichiro FUKUHARA (ichiro@ichiro.org). * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: ipaq_lcd.c,v 1.20 2014/10/25 10:58:12 skrll Exp $"); #define IPAQ_LCD_DEBUG #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef IPAQ_LCD_DEBUG #define DPRINTFN(n, x) if (ipaqlcddebug > (n)) aprint_normal x int ipaqlcddebug = 0xff; #else #define DPRINTFN(n, x) #endif #define DPRINTF(x) DPRINTFN(0, x) static int ipaqlcd_match(device_t, cfdata_t, void *); static void ipaqlcd_attach(device_t, device_t, void *); static void ipaqlcd_init(struct ipaqlcd_softc *); static int ipaqlcd_fbinit(struct ipaqlcd_softc *); static int ipaqlcd_ioctl(void *, u_long, void *, int, struct lwp *); static paddr_t ipaqlcd_mmap(void *, off_t, int); #if defined __mips__ || defined __sh__ || defined __arm__ #define __BTOP(x) ((paddr_t)(x) >> PGSHIFT) #define __PTOB(x) ((paddr_t)(x) << PGSHIFT) #else #error "define btop, ptob." #endif CFATTACH_DECL_NEW(ipaqlcd, sizeof(struct ipaqlcd_softc), ipaqlcd_match, ipaqlcd_attach, NULL, NULL); struct hpcfb_accessops ipaqlcd_ha = { ipaqlcd_ioctl, ipaqlcd_mmap }; static int console_flag = 0; static int ipaqlcd_match(device_t parent, cfdata_t match, void *aux) { return (1); } void ipaqlcd_attach(device_t parent, device_t self, void *aux) { struct ipaqlcd_softc *sc = device_private(self); struct hpcfb_attach_args ha; struct ipaq_softc *psc = device_private(parent); sc->sc_dev = self; sc->sc_iot = psc->sc_iot; sc->sc_parent = psc; ipaqlcd_init(sc); ipaqlcd_fbinit(sc); aprint_normal("\n"); aprint_normal_dev(self, "iPAQ internal LCD controller\n"); DPRINTF(("framebuffer_baseaddr=%lx\n", (u_long)bootinfo->fb_addr)); ha.ha_console = console_flag; ha.ha_accessops = &ipaqlcd_ha; ha.ha_accessctx = sc; ha.ha_curfbconf = 0; ha.ha_nfbconf = 1; ha.ha_fbconflist = &sc->sc_fbconf; ha.ha_curdspconf = 0; ha.ha_ndspconf = 1; ha.ha_dspconflist = &sc->sc_dspconf; config_found(sc->sc_dev, &ha, hpcfbprint); } void ipaqlcd_init(struct ipaqlcd_softc *sc) { /* Initialization of Extended GPIO */ sc->sc_parent->ipaq_egpio |= EGPIO_LCD_INIT; bus_space_write_2(sc->sc_iot, sc->sc_parent->sc_egpioh, 0, sc->sc_parent->ipaq_egpio); if (bus_space_map(sc->sc_iot, SALCD_BASE, SALCD_NPORTS, 0, &sc->sc_ioh)) panic("ipaqlcd_init:Cannot map registers"); bootinfo->fb_addr = (void *) bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_BA1); /* * Initialize LCD Control Register 0 - 3 * must initialize DMA Channel Base Address Register * before enabling LCD(LEN = 1) */ bus_space_write_4(sc->sc_iot, sc->sc_ioh, SALCD_CR1, IPAQ_LCCR1); bus_space_write_4(sc->sc_iot, sc->sc_ioh, SALCD_CR2, IPAQ_LCCR2); bus_space_write_4(sc->sc_iot, sc->sc_ioh, SALCD_CR3, IPAQ_LCCR3); bus_space_write_4(sc->sc_iot, sc->sc_ioh, SALCD_CR0, IPAQ_LCCR0); DPRINTF(("\n" "DMA_BASE= %08x : DMA_CUR = %08x \n" "LCCR0 = %08x : LCCR1 = %08x \n" "LCCR2 = %08x : LCCR3 = %08x", bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_BA1), bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CA1), bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR0), bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR1), bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR2), bus_space_read_4(sc->sc_iot, sc->sc_ioh, SALCD_CR3))); } int ipaqlcd_fbinit(struct ipaqlcd_softc *sc) { struct hpcfb_fbconf *fb; fb = &sc->sc_fbconf; /* Initialize fb */ memset(fb, 0, sizeof(*fb)); fb->hf_conf_index = 0; /* configuration index */ fb->hf_nconfs = 1; strcpy(fb->hf_name, "built-in video"); strcpy(fb->hf_conf_name, "LCD"); /* configuration name */ fb->hf_height = bootinfo->fb_height; fb->hf_width = bootinfo->fb_width; if (bus_space_map(sc->sc_iot, (bus_addr_t)bootinfo->fb_addr, bootinfo->fb_height * bootinfo->fb_line_bytes, 0, &fb->hf_baseaddr)) { aprint_normal("unable to map framebuffer\n"); return (-1); } fb->hf_offset = (u_long)bootinfo->fb_addr - __PTOB(__BTOP(bootinfo->fb_addr)); /* frame buffer start offset */ fb->hf_bytes_per_line = bootinfo->fb_line_bytes; fb->hf_nplanes = 1; fb->hf_bytes_per_plane = bootinfo->fb_height * bootinfo->fb_line_bytes; fb->hf_access_flags |= HPCFB_ACCESS_BYTE; fb->hf_access_flags |= HPCFB_ACCESS_WORD; fb->hf_access_flags |= HPCFB_ACCESS_DWORD; switch (bootinfo->fb_type) { /* * gray scale */ case BIFB_D2_M2L_3: case BIFB_D2_M2L_3x2: fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; case BIFB_D2_M2L_0: case BIFB_D2_M2L_0x2: fb->hf_class = HPCFB_CLASS_GRAYSCALE; break; case BIFB_D4_M2L_F: case BIFB_D4_M2L_Fx2: fb->hf_access_flags |= HPCFB_ACCESS_REVERSE; case BIFB_D4_M2L_0: case BIFB_D4_M2L_0x2: fb->hf_class = HPCFB_CLASS_GRAYSCALE; break; /* * indexed color */ case BIFB_D8_FF: case BIFB_D8_00: fb->hf_offset = 0x200; break; /* * RGB color */ case BIFB_D16_FFFF: case BIFB_D16_0000: fb->hf_class = HPCFB_CLASS_RGBCOLOR; fb->hf_access_flags |= HPCFB_ACCESS_STATIC; fb->hf_order_flags = HPCFB_REVORDER_BYTE; fb->hf_pack_width = 16; fb->hf_pixels_per_pack = 1; fb->hf_pixel_width = 16; fb->hf_class_data_length = sizeof(struct hf_rgb_tag); fb->hf_u.hf_rgb.hf_flags = 0; /* reserved for future use */ fb->hf_u.hf_rgb.hf_red_width = 5; fb->hf_u.hf_rgb.hf_red_shift = 11; fb->hf_u.hf_rgb.hf_green_width = 6; fb->hf_u.hf_rgb.hf_green_shift = 5; fb->hf_u.hf_rgb.hf_blue_width = 5; fb->hf_u.hf_rgb.hf_blue_shift = 0; fb->hf_u.hf_rgb.hf_alpha_width = 0; fb->hf_u.hf_rgb.hf_alpha_shift = 0; break; default : aprint_normal("unknown type (=%d).\n", bootinfo->fb_type); return (-1); break; } return(0); } int ipaqlcd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) { struct ipaqlcd_softc *sc = (struct ipaqlcd_softc *)v; struct hpcfb_fbconf *fbconf; struct hpcfb_dspconf *dspconf; struct wsdisplay_cmap *cmap; struct wsdisplay_param *dispparam; switch (cmd) { case WSDISPLAYIO_GETCMAP: cmap = (struct wsdisplay_cmap*)data; if (sc->sc_fbconf.hf_class != HPCFB_CLASS_INDEXCOLOR || sc->sc_fbconf.hf_pack_width != 8 || 256 <= cmap->index || 256 < (cmap->index + cmap->count)) return (EINVAL); return (0); case WSDISPLAYIO_PUTCMAP: return (EINVAL); case WSDISPLAYIO_GETPARAM: dispparam = (struct wsdisplay_param*)data; switch (dispparam->param) { case WSDISPLAYIO_PARAM_BACKLIGHT: DPRINTF(("ipaqlcd_ioctl: GETPARAM:BACKLIGHT\n")); return (EINVAL); case WSDISPLAYIO_PARAM_CONTRAST: DPRINTF(("ipaqlcd_ioctl: GETPARAM:CONTRAST\n")); return (EINVAL); case WSDISPLAYIO_PARAM_BRIGHTNESS: DPRINTF(("ipaqlcd_ioctl: GETPARAM:BRIGHTNESS\n")); return (EINVAL); default: return (EINVAL); } return (0); case WSDISPLAYIO_SETPARAM: dispparam = (struct wsdisplay_param*)data; switch (dispparam->param) { case WSDISPLAYIO_PARAM_BACKLIGHT: DPRINTF(("ipaqlcd_ioctl: GETPARAM:BACKLIGHT\n")); return (EINVAL); case WSDISPLAYIO_PARAM_CONTRAST: DPRINTF(("ipaqlcd_ioctl: GETPARAM:CONTRAST\n")); return (EINVAL); case WSDISPLAYIO_PARAM_BRIGHTNESS: DPRINTF(("ipaqlcd_ioctl: GETPARAM:BRIGHTNESS\n")); return (EINVAL); default: return (EINVAL); } return (0); case HPCFBIO_GCONF: fbconf = (struct hpcfb_fbconf *)data; if (fbconf->hf_conf_index != 0 && fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { return (EINVAL); } *fbconf = sc->sc_fbconf; /* structure assignment */ return (0); case HPCFBIO_SCONF: fbconf = (struct hpcfb_fbconf *)data; if (fbconf->hf_conf_index != 0 && fbconf->hf_conf_index != HPCFB_CURRENT_CONFIG) { return (EINVAL); } /* * nothing to do because we have only one configuration */ return (0); case HPCFBIO_GDSPCONF: dspconf = (struct hpcfb_dspconf *)data; if ((dspconf->hd_unit_index != 0 && dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || (dspconf->hd_conf_index != 0 && dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { return (EINVAL); } *dspconf = sc->sc_dspconf; /* structure assignment */ return (0); case HPCFBIO_SDSPCONF: dspconf = (struct hpcfb_dspconf *)data; if ((dspconf->hd_unit_index != 0 && dspconf->hd_unit_index != HPCFB_CURRENT_UNIT) || (dspconf->hd_conf_index != 0 && dspconf->hd_conf_index != HPCFB_CURRENT_CONFIG)) { return (EINVAL); } /* * nothing to do * because we have only one unit and one configuration */ return (0); case HPCFBIO_GOP: case HPCFBIO_SOP: return (EINVAL); } return (EPASSTHROUGH); } paddr_t ipaqlcd_mmap(void *ctx, off_t offset, int prot) { struct ipaqlcd_softc *sc = (struct ipaqlcd_softc *)ctx; if (offset < 0 || (sc->sc_fbconf.hf_bytes_per_plane + sc->sc_fbconf.hf_offset) < offset) return -1; return __BTOP((u_long)bootinfo->fb_addr + offset); }