124ca3d19SOleksandr Tymoshenko /*- 2af3dc4a7SPedro F. Giffuni * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3af3dc4a7SPedro F. Giffuni * 424ca3d19SOleksandr Tymoshenko * Copyright 2013 Oleksandr Tymoshenko <gonzo@freebsd.org> 524ca3d19SOleksandr Tymoshenko * All rights reserved. 624ca3d19SOleksandr Tymoshenko * 724ca3d19SOleksandr Tymoshenko * Redistribution and use in source and binary forms, with or without 824ca3d19SOleksandr Tymoshenko * modification, are permitted provided that the following conditions 924ca3d19SOleksandr Tymoshenko * are met: 1024ca3d19SOleksandr Tymoshenko * 1. Redistributions of source code must retain the above copyright 1124ca3d19SOleksandr Tymoshenko * notice, this list of conditions and the following disclaimer. 1224ca3d19SOleksandr Tymoshenko * 2. Redistributions in binary form must reproduce the above copyright 1324ca3d19SOleksandr Tymoshenko * notice, this list of conditions and the following disclaimer in the 1424ca3d19SOleksandr Tymoshenko * documentation and/or other materials provided with the distribution. 1524ca3d19SOleksandr Tymoshenko * 1624ca3d19SOleksandr Tymoshenko * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1724ca3d19SOleksandr Tymoshenko * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1824ca3d19SOleksandr Tymoshenko * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1924ca3d19SOleksandr Tymoshenko * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2024ca3d19SOleksandr Tymoshenko * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2124ca3d19SOleksandr Tymoshenko * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2224ca3d19SOleksandr Tymoshenko * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2324ca3d19SOleksandr Tymoshenko * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2424ca3d19SOleksandr Tymoshenko * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2524ca3d19SOleksandr Tymoshenko * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2624ca3d19SOleksandr Tymoshenko * SUCH DAMAGE. 2724ca3d19SOleksandr Tymoshenko */ 2824ca3d19SOleksandr Tymoshenko 2924ca3d19SOleksandr Tymoshenko #include <sys/cdefs.h> 3024ca3d19SOleksandr Tymoshenko __FBSDID("$FreeBSD$"); 3124ca3d19SOleksandr Tymoshenko 3272584f4cSOleksandr Tymoshenko #include "opt_syscons.h" 3324ca3d19SOleksandr Tymoshenko #include <sys/param.h> 3424ca3d19SOleksandr Tymoshenko #include <sys/systm.h> 3524ca3d19SOleksandr Tymoshenko #include <sys/kernel.h> 3624ca3d19SOleksandr Tymoshenko #include <sys/module.h> 3724ca3d19SOleksandr Tymoshenko #include <sys/clock.h> 38e12be321SConrad Meyer #include <sys/eventhandler.h> 3924ca3d19SOleksandr Tymoshenko #include <sys/time.h> 4024ca3d19SOleksandr Tymoshenko #include <sys/bus.h> 4124ca3d19SOleksandr Tymoshenko #include <sys/lock.h> 4224ca3d19SOleksandr Tymoshenko #include <sys/mutex.h> 4324ca3d19SOleksandr Tymoshenko #include <sys/resource.h> 4424ca3d19SOleksandr Tymoshenko #include <sys/rman.h> 4524ca3d19SOleksandr Tymoshenko #include <sys/sysctl.h> 4624ca3d19SOleksandr Tymoshenko #include <vm/vm.h> 4724ca3d19SOleksandr Tymoshenko #include <vm/pmap.h> 4802ff64b8SOleksandr Tymoshenko #include <sys/fbio.h> 4902ff64b8SOleksandr Tymoshenko #include <sys/consio.h> 5002ff64b8SOleksandr Tymoshenko 5124ca3d19SOleksandr Tymoshenko #include <machine/bus.h> 5224ca3d19SOleksandr Tymoshenko 530050ea24SMichal Meloun #include <dev/extres/clk/clk.h> 540050ea24SMichal Meloun 5524ca3d19SOleksandr Tymoshenko #include <dev/fdt/fdt_common.h> 5624ca3d19SOleksandr Tymoshenko #include <dev/ofw/openfirm.h> 5724ca3d19SOleksandr Tymoshenko #include <dev/ofw/ofw_bus.h> 5824ca3d19SOleksandr Tymoshenko #include <dev/ofw/ofw_bus_subr.h> 5924ca3d19SOleksandr Tymoshenko 60224fba2bSOleksandr Tymoshenko #include <dev/videomode/videomode.h> 61224fba2bSOleksandr Tymoshenko #include <dev/videomode/edidvar.h> 62224fba2bSOleksandr Tymoshenko 6302ff64b8SOleksandr Tymoshenko #include <dev/fb/fbreg.h> 6472584f4cSOleksandr Tymoshenko #ifdef DEV_SC 6502ff64b8SOleksandr Tymoshenko #include <dev/syscons/syscons.h> 6672584f4cSOleksandr Tymoshenko #else /* VT */ 6772584f4cSOleksandr Tymoshenko #include <dev/vt/vt.h> 6872584f4cSOleksandr Tymoshenko #endif 6902ff64b8SOleksandr Tymoshenko 700050ea24SMichal Meloun #include <arm/ti/ti_sysc.h> 7124ca3d19SOleksandr Tymoshenko #include <arm/ti/ti_scm.h> 7224ca3d19SOleksandr Tymoshenko 7324ca3d19SOleksandr Tymoshenko #include "am335x_lcd.h" 7424ca3d19SOleksandr Tymoshenko #include "am335x_pwm.h" 7524ca3d19SOleksandr Tymoshenko 7672584f4cSOleksandr Tymoshenko #include "fb_if.h" 77224fba2bSOleksandr Tymoshenko #include "hdmi_if.h" 7872584f4cSOleksandr Tymoshenko 7924ca3d19SOleksandr Tymoshenko #define LCD_PID 0x00 8024ca3d19SOleksandr Tymoshenko #define LCD_CTRL 0x04 8124ca3d19SOleksandr Tymoshenko #define CTRL_DIV_MASK 0xff 8224ca3d19SOleksandr Tymoshenko #define CTRL_DIV_SHIFT 8 8324ca3d19SOleksandr Tymoshenko #define CTRL_AUTO_UFLOW_RESTART (1 << 1) 8424ca3d19SOleksandr Tymoshenko #define CTRL_RASTER_MODE 1 8524ca3d19SOleksandr Tymoshenko #define CTRL_LIDD_MODE 0 8624ca3d19SOleksandr Tymoshenko #define LCD_LIDD_CTRL 0x0C 8724ca3d19SOleksandr Tymoshenko #define LCD_LIDD_CS0_CONF 0x10 8824ca3d19SOleksandr Tymoshenko #define LCD_LIDD_CS0_ADDR 0x14 8924ca3d19SOleksandr Tymoshenko #define LCD_LIDD_CS0_DATA 0x18 9024ca3d19SOleksandr Tymoshenko #define LCD_LIDD_CS1_CONF 0x1C 9124ca3d19SOleksandr Tymoshenko #define LCD_LIDD_CS1_ADDR 0x20 9224ca3d19SOleksandr Tymoshenko #define LCD_LIDD_CS1_DATA 0x24 9324ca3d19SOleksandr Tymoshenko #define LCD_RASTER_CTRL 0x28 9424ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_TFT24_UNPACKED (1 << 26) 9524ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_TFT24 (1 << 25) 9624ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_STN565 (1 << 24) 9724ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_TFTPMAP (1 << 23) 9824ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_NIBMODE (1 << 22) 9924ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_PALMODE_SHIFT 20 10024ca3d19SOleksandr Tymoshenko #define PALETTE_PALETTE_AND_DATA 0x00 10124ca3d19SOleksandr Tymoshenko #define PALETTE_PALETTE_ONLY 0x01 10224ca3d19SOleksandr Tymoshenko #define PALETTE_DATA_ONLY 0x02 10324ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_REQDLY_SHIFT 12 10424ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_MONO8B (1 << 9) 10524ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_RBORDER (1 << 8) 10624ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_LCDTFT (1 << 7) 10724ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_LCDBW (1 << 1) 10824ca3d19SOleksandr Tymoshenko #define RASTER_CTRL_LCDEN (1 << 0) 10924ca3d19SOleksandr Tymoshenko #define LCD_RASTER_TIMING_0 0x2C 11024ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_0_HBP_SHIFT 24 11124ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_0_HFP_SHIFT 16 11224ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_0_HSW_SHIFT 10 11324ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_0_PPLLSB_SHIFT 4 11424ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_0_PPLMSB_SHIFT 3 11524ca3d19SOleksandr Tymoshenko #define LCD_RASTER_TIMING_1 0x30 11624ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_1_VBP_SHIFT 24 11724ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_1_VFP_SHIFT 16 11824ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_1_VSW_SHIFT 10 11924ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_1_LPP_SHIFT 0 12024ca3d19SOleksandr Tymoshenko #define LCD_RASTER_TIMING_2 0x34 12124ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_HSWHI_SHIFT 27 12224ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_LPP_B10_SHIFT 26 12324ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_PHSVS (1 << 25) 12424ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_PHSVS_RISE (1 << 24) 12524ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_PHSVS_FALL (0 << 24) 12624ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_IOE (1 << 23) 12724ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_IPC (1 << 22) 12824ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_IHS (1 << 21) 12924ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_IVS (1 << 20) 13024ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_ACBI_SHIFT 16 13124ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_ACB_SHIFT 8 13224ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_HBPHI_SHIFT 4 13324ca3d19SOleksandr Tymoshenko #define RASTER_TIMING_2_HFPHI_SHIFT 0 13424ca3d19SOleksandr Tymoshenko #define LCD_RASTER_SUBPANEL 0x38 13524ca3d19SOleksandr Tymoshenko #define LCD_RASTER_SUBPANEL2 0x3C 13624ca3d19SOleksandr Tymoshenko #define LCD_LCDDMA_CTRL 0x40 13724ca3d19SOleksandr Tymoshenko #define LCDDMA_CTRL_DMA_MASTER_PRIO_SHIFT 16 13824ca3d19SOleksandr Tymoshenko #define LCDDMA_CTRL_TH_FIFO_RDY_SHIFT 8 13924ca3d19SOleksandr Tymoshenko #define LCDDMA_CTRL_BURST_SIZE_SHIFT 4 14024ca3d19SOleksandr Tymoshenko #define LCDDMA_CTRL_BYTES_SWAP (1 << 3) 14124ca3d19SOleksandr Tymoshenko #define LCDDMA_CTRL_BE (1 << 1) 14224ca3d19SOleksandr Tymoshenko #define LCDDMA_CTRL_FB0_ONLY 0 14324ca3d19SOleksandr Tymoshenko #define LCDDMA_CTRL_FB0_FB1 (1 << 0) 14424ca3d19SOleksandr Tymoshenko #define LCD_LCDDMA_FB0_BASE 0x44 14524ca3d19SOleksandr Tymoshenko #define LCD_LCDDMA_FB0_CEILING 0x48 14624ca3d19SOleksandr Tymoshenko #define LCD_LCDDMA_FB1_BASE 0x4C 14724ca3d19SOleksandr Tymoshenko #define LCD_LCDDMA_FB1_CEILING 0x50 14824ca3d19SOleksandr Tymoshenko #define LCD_SYSCONFIG 0x54 14924ca3d19SOleksandr Tymoshenko #define SYSCONFIG_STANDBY_FORCE (0 << 4) 15024ca3d19SOleksandr Tymoshenko #define SYSCONFIG_STANDBY_NONE (1 << 4) 15124ca3d19SOleksandr Tymoshenko #define SYSCONFIG_STANDBY_SMART (2 << 4) 15224ca3d19SOleksandr Tymoshenko #define SYSCONFIG_IDLE_FORCE (0 << 2) 15324ca3d19SOleksandr Tymoshenko #define SYSCONFIG_IDLE_NONE (1 << 2) 15424ca3d19SOleksandr Tymoshenko #define SYSCONFIG_IDLE_SMART (2 << 2) 15524ca3d19SOleksandr Tymoshenko #define LCD_IRQSTATUS_RAW 0x58 15624ca3d19SOleksandr Tymoshenko #define LCD_IRQSTATUS 0x5C 15724ca3d19SOleksandr Tymoshenko #define LCD_IRQENABLE_SET 0x60 15824ca3d19SOleksandr Tymoshenko #define LCD_IRQENABLE_CLEAR 0x64 15924ca3d19SOleksandr Tymoshenko #define IRQ_EOF1 (1 << 9) 16024ca3d19SOleksandr Tymoshenko #define IRQ_EOF0 (1 << 8) 16124ca3d19SOleksandr Tymoshenko #define IRQ_PL (1 << 6) 16224ca3d19SOleksandr Tymoshenko #define IRQ_FUF (1 << 5) 16324ca3d19SOleksandr Tymoshenko #define IRQ_ACB (1 << 3) 16424ca3d19SOleksandr Tymoshenko #define IRQ_SYNC_LOST (1 << 2) 16524ca3d19SOleksandr Tymoshenko #define IRQ_RASTER_DONE (1 << 1) 16624ca3d19SOleksandr Tymoshenko #define IRQ_FRAME_DONE (1 << 0) 167eaf6610dSOleksandr Tymoshenko #define LCD_END_OF_INT_IND 0x68 16824ca3d19SOleksandr Tymoshenko #define LCD_CLKC_ENABLE 0x6C 16924ca3d19SOleksandr Tymoshenko #define CLKC_ENABLE_DMA (1 << 2) 17024ca3d19SOleksandr Tymoshenko #define CLKC_ENABLE_LDID (1 << 1) 17124ca3d19SOleksandr Tymoshenko #define CLKC_ENABLE_CORE (1 << 0) 17224ca3d19SOleksandr Tymoshenko #define LCD_CLKC_RESET 0x70 17324ca3d19SOleksandr Tymoshenko #define CLKC_RESET_MAIN (1 << 3) 17424ca3d19SOleksandr Tymoshenko #define CLKC_RESET_DMA (1 << 2) 17524ca3d19SOleksandr Tymoshenko #define CLKC_RESET_LDID (1 << 1) 17624ca3d19SOleksandr Tymoshenko #define CLKC_RESET_CORE (1 << 0) 17724ca3d19SOleksandr Tymoshenko 17824ca3d19SOleksandr Tymoshenko #define LCD_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 17924ca3d19SOleksandr Tymoshenko #define LCD_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 18024ca3d19SOleksandr Tymoshenko #define LCD_LOCK_INIT(_sc) mtx_init(&(_sc)->sc_mtx, \ 18124ca3d19SOleksandr Tymoshenko device_get_nameunit(_sc->sc_dev), "am335x_lcd", MTX_DEF) 18224ca3d19SOleksandr Tymoshenko #define LCD_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx); 18324ca3d19SOleksandr Tymoshenko 18424ca3d19SOleksandr Tymoshenko #define LCD_READ4(_sc, reg) bus_read_4((_sc)->sc_mem_res, reg); 18524ca3d19SOleksandr Tymoshenko #define LCD_WRITE4(_sc, reg, value) \ 18624ca3d19SOleksandr Tymoshenko bus_write_4((_sc)->sc_mem_res, reg, value); 18724ca3d19SOleksandr Tymoshenko 18824ca3d19SOleksandr Tymoshenko /* Backlight is controlled by eCAS interface on PWM unit 0 */ 18924ca3d19SOleksandr Tymoshenko #define PWM_UNIT 0 19024ca3d19SOleksandr Tymoshenko #define PWM_PERIOD 100 19124ca3d19SOleksandr Tymoshenko 192224fba2bSOleksandr Tymoshenko #define MODE_HBP(mode) ((mode)->htotal - (mode)->hsync_end) 193224fba2bSOleksandr Tymoshenko #define MODE_HFP(mode) ((mode)->hsync_start - (mode)->hdisplay) 194224fba2bSOleksandr Tymoshenko #define MODE_HSW(mode) ((mode)->hsync_end - (mode)->hsync_start) 195224fba2bSOleksandr Tymoshenko #define MODE_VBP(mode) ((mode)->vtotal - (mode)->vsync_end) 196224fba2bSOleksandr Tymoshenko #define MODE_VFP(mode) ((mode)->vsync_start - (mode)->vdisplay) 197224fba2bSOleksandr Tymoshenko #define MODE_VSW(mode) ((mode)->vsync_end - (mode)->vsync_start) 198224fba2bSOleksandr Tymoshenko 199224fba2bSOleksandr Tymoshenko #define MAX_PIXEL_CLOCK 126000 200224fba2bSOleksandr Tymoshenko #define MAX_BANDWIDTH (1280*1024*60) 201224fba2bSOleksandr Tymoshenko 20224ca3d19SOleksandr Tymoshenko struct am335x_lcd_softc { 20324ca3d19SOleksandr Tymoshenko device_t sc_dev; 20472584f4cSOleksandr Tymoshenko struct fb_info sc_fb_info; 20524ca3d19SOleksandr Tymoshenko struct resource *sc_mem_res; 20624ca3d19SOleksandr Tymoshenko struct resource *sc_irq_res; 20724ca3d19SOleksandr Tymoshenko void *sc_intr_hl; 20824ca3d19SOleksandr Tymoshenko struct mtx sc_mtx; 20924ca3d19SOleksandr Tymoshenko int sc_backlight; 21024ca3d19SOleksandr Tymoshenko struct sysctl_oid *sc_oid; 21124ca3d19SOleksandr Tymoshenko 212224fba2bSOleksandr Tymoshenko struct panel_info sc_panel; 213224fba2bSOleksandr Tymoshenko 21424ca3d19SOleksandr Tymoshenko /* Framebuffer */ 21524ca3d19SOleksandr Tymoshenko bus_dma_tag_t sc_dma_tag; 21624ca3d19SOleksandr Tymoshenko bus_dmamap_t sc_dma_map; 21724ca3d19SOleksandr Tymoshenko size_t sc_fb_size; 21824ca3d19SOleksandr Tymoshenko bus_addr_t sc_fb_phys; 21924ca3d19SOleksandr Tymoshenko uint8_t *sc_fb_base; 220224fba2bSOleksandr Tymoshenko 221224fba2bSOleksandr Tymoshenko /* HDMI framer */ 222224fba2bSOleksandr Tymoshenko phandle_t sc_hdmi_framer; 223224fba2bSOleksandr Tymoshenko eventhandler_tag sc_hdmi_evh; 2240050ea24SMichal Meloun 2250050ea24SMichal Meloun /* Clock */ 2260050ea24SMichal Meloun clk_t sc_clk_dpll_disp_ck; 22724ca3d19SOleksandr Tymoshenko }; 22824ca3d19SOleksandr Tymoshenko 22924ca3d19SOleksandr Tymoshenko static void 23024ca3d19SOleksandr Tymoshenko am335x_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err) 23124ca3d19SOleksandr Tymoshenko { 23224ca3d19SOleksandr Tymoshenko bus_addr_t *addr; 23324ca3d19SOleksandr Tymoshenko 23424ca3d19SOleksandr Tymoshenko if (err) 23524ca3d19SOleksandr Tymoshenko return; 23624ca3d19SOleksandr Tymoshenko 23724ca3d19SOleksandr Tymoshenko addr = (bus_addr_t*)arg; 23824ca3d19SOleksandr Tymoshenko *addr = segs[0].ds_addr; 23924ca3d19SOleksandr Tymoshenko } 24024ca3d19SOleksandr Tymoshenko 24124ca3d19SOleksandr Tymoshenko static uint32_t 24224ca3d19SOleksandr Tymoshenko am335x_lcd_calc_divisor(uint32_t reference, uint32_t freq) 24324ca3d19SOleksandr Tymoshenko { 244224fba2bSOleksandr Tymoshenko uint32_t div, i; 245224fba2bSOleksandr Tymoshenko uint32_t delta, min_delta; 24624ca3d19SOleksandr Tymoshenko 247224fba2bSOleksandr Tymoshenko min_delta = freq; 248224fba2bSOleksandr Tymoshenko div = 255; 249224fba2bSOleksandr Tymoshenko 250224fba2bSOleksandr Tymoshenko /* Raster mode case: divisors are in range from 2 to 255 */ 251224fba2bSOleksandr Tymoshenko for (i = 2; i < 255; i++) { 252224fba2bSOleksandr Tymoshenko delta = abs(reference/i - freq); 253224fba2bSOleksandr Tymoshenko if (delta < min_delta) { 254224fba2bSOleksandr Tymoshenko div = i; 255224fba2bSOleksandr Tymoshenko min_delta = delta; 256224fba2bSOleksandr Tymoshenko } 257224fba2bSOleksandr Tymoshenko } 258224fba2bSOleksandr Tymoshenko 259224fba2bSOleksandr Tymoshenko return (div); 26024ca3d19SOleksandr Tymoshenko } 26124ca3d19SOleksandr Tymoshenko 26224ca3d19SOleksandr Tymoshenko static int 26324ca3d19SOleksandr Tymoshenko am335x_lcd_sysctl_backlight(SYSCTL_HANDLER_ARGS) 26424ca3d19SOleksandr Tymoshenko { 26524ca3d19SOleksandr Tymoshenko struct am335x_lcd_softc *sc = (struct am335x_lcd_softc*)arg1; 26624ca3d19SOleksandr Tymoshenko int error; 26724ca3d19SOleksandr Tymoshenko int backlight; 26824ca3d19SOleksandr Tymoshenko 2696ed13549SKevin Lo backlight = sc->sc_backlight; 27024ca3d19SOleksandr Tymoshenko error = sysctl_handle_int(oidp, &backlight, 0, req); 27124ca3d19SOleksandr Tymoshenko 27224ca3d19SOleksandr Tymoshenko if (error != 0 || req->newptr == NULL) 27324ca3d19SOleksandr Tymoshenko return (error); 27424ca3d19SOleksandr Tymoshenko 27524ca3d19SOleksandr Tymoshenko if (backlight < 0) 27624ca3d19SOleksandr Tymoshenko backlight = 0; 27724ca3d19SOleksandr Tymoshenko if (backlight > 100) 27824ca3d19SOleksandr Tymoshenko backlight = 100; 27924ca3d19SOleksandr Tymoshenko 28024ca3d19SOleksandr Tymoshenko LCD_LOCK(sc); 2815b03aba6SOleksandr Tymoshenko error = am335x_pwm_config_ecap(PWM_UNIT, PWM_PERIOD, 28224ca3d19SOleksandr Tymoshenko backlight*PWM_PERIOD/100); 28324ca3d19SOleksandr Tymoshenko if (error == 0) 28424ca3d19SOleksandr Tymoshenko sc->sc_backlight = backlight; 28524ca3d19SOleksandr Tymoshenko LCD_UNLOCK(sc); 28624ca3d19SOleksandr Tymoshenko 28724ca3d19SOleksandr Tymoshenko return (error); 28824ca3d19SOleksandr Tymoshenko } 28924ca3d19SOleksandr Tymoshenko 290224fba2bSOleksandr Tymoshenko static uint32_t 291224fba2bSOleksandr Tymoshenko am335x_mode_vrefresh(const struct videomode *mode) 292224fba2bSOleksandr Tymoshenko { 293224fba2bSOleksandr Tymoshenko uint32_t refresh; 294224fba2bSOleksandr Tymoshenko 295224fba2bSOleksandr Tymoshenko /* Calculate vertical refresh rate */ 296224fba2bSOleksandr Tymoshenko refresh = (mode->dot_clock * 1000 / mode->htotal); 297224fba2bSOleksandr Tymoshenko refresh = (refresh + mode->vtotal / 2) / mode->vtotal; 298224fba2bSOleksandr Tymoshenko 299224fba2bSOleksandr Tymoshenko if (mode->flags & VID_INTERLACE) 300224fba2bSOleksandr Tymoshenko refresh *= 2; 301224fba2bSOleksandr Tymoshenko if (mode->flags & VID_DBLSCAN) 302224fba2bSOleksandr Tymoshenko refresh /= 2; 303224fba2bSOleksandr Tymoshenko 304224fba2bSOleksandr Tymoshenko return refresh; 305224fba2bSOleksandr Tymoshenko } 306224fba2bSOleksandr Tymoshenko 307224fba2bSOleksandr Tymoshenko static int 308224fba2bSOleksandr Tymoshenko am335x_mode_is_valid(const struct videomode *mode) 309224fba2bSOleksandr Tymoshenko { 310224fba2bSOleksandr Tymoshenko uint32_t hbp, hfp, hsw; 311224fba2bSOleksandr Tymoshenko uint32_t vbp, vfp, vsw; 312224fba2bSOleksandr Tymoshenko 313224fba2bSOleksandr Tymoshenko if (mode->dot_clock > MAX_PIXEL_CLOCK) 314224fba2bSOleksandr Tymoshenko return (0); 315224fba2bSOleksandr Tymoshenko 316224fba2bSOleksandr Tymoshenko if (mode->hdisplay & 0xf) 317224fba2bSOleksandr Tymoshenko return (0); 318224fba2bSOleksandr Tymoshenko 319224fba2bSOleksandr Tymoshenko if (mode->vdisplay > 2048) 320224fba2bSOleksandr Tymoshenko return (0); 321224fba2bSOleksandr Tymoshenko 322224fba2bSOleksandr Tymoshenko /* Check ranges for timing parameters */ 323224fba2bSOleksandr Tymoshenko hbp = MODE_HBP(mode) - 1; 324224fba2bSOleksandr Tymoshenko hfp = MODE_HFP(mode) - 1; 325224fba2bSOleksandr Tymoshenko hsw = MODE_HSW(mode) - 1; 326224fba2bSOleksandr Tymoshenko vbp = MODE_VBP(mode); 327224fba2bSOleksandr Tymoshenko vfp = MODE_VFP(mode); 328224fba2bSOleksandr Tymoshenko vsw = MODE_VSW(mode) - 1; 329224fba2bSOleksandr Tymoshenko 330224fba2bSOleksandr Tymoshenko if (hbp > 0x3ff) 331224fba2bSOleksandr Tymoshenko return (0); 332224fba2bSOleksandr Tymoshenko if (hfp > 0x3ff) 333224fba2bSOleksandr Tymoshenko return (0); 334224fba2bSOleksandr Tymoshenko if (hsw > 0x3ff) 335224fba2bSOleksandr Tymoshenko return (0); 336224fba2bSOleksandr Tymoshenko 337224fba2bSOleksandr Tymoshenko if (vbp > 0xff) 338224fba2bSOleksandr Tymoshenko return (0); 339224fba2bSOleksandr Tymoshenko if (vfp > 0xff) 340224fba2bSOleksandr Tymoshenko return (0); 341224fba2bSOleksandr Tymoshenko if (vsw > 0x3f) 342224fba2bSOleksandr Tymoshenko return (0); 343224fba2bSOleksandr Tymoshenko if (mode->vdisplay*mode->hdisplay*am335x_mode_vrefresh(mode) 344224fba2bSOleksandr Tymoshenko > MAX_BANDWIDTH) 345224fba2bSOleksandr Tymoshenko return (0); 346224fba2bSOleksandr Tymoshenko 347224fba2bSOleksandr Tymoshenko return (1); 348224fba2bSOleksandr Tymoshenko } 349224fba2bSOleksandr Tymoshenko 350224fba2bSOleksandr Tymoshenko static void 351224fba2bSOleksandr Tymoshenko am335x_read_hdmi_property(device_t dev) 352224fba2bSOleksandr Tymoshenko { 353dda19570SOleksandr Tymoshenko phandle_t node, xref; 354878097c1SOleksandr Tymoshenko phandle_t endpoint; 355224fba2bSOleksandr Tymoshenko phandle_t hdmi_xref; 356224fba2bSOleksandr Tymoshenko struct am335x_lcd_softc *sc; 357224fba2bSOleksandr Tymoshenko 358224fba2bSOleksandr Tymoshenko sc = device_get_softc(dev); 359224fba2bSOleksandr Tymoshenko node = ofw_bus_get_node(dev); 360224fba2bSOleksandr Tymoshenko sc->sc_hdmi_framer = 0; 361878097c1SOleksandr Tymoshenko 362878097c1SOleksandr Tymoshenko /* 363878097c1SOleksandr Tymoshenko * Old FreeBSD way of referencing to HDMI framer 364878097c1SOleksandr Tymoshenko */ 365878097c1SOleksandr Tymoshenko if (OF_getencprop(node, "hdmi", &hdmi_xref, sizeof(hdmi_xref)) != -1) { 366224fba2bSOleksandr Tymoshenko sc->sc_hdmi_framer = hdmi_xref; 367878097c1SOleksandr Tymoshenko return; 368878097c1SOleksandr Tymoshenko } 369878097c1SOleksandr Tymoshenko 370878097c1SOleksandr Tymoshenko /* 371878097c1SOleksandr Tymoshenko * Use bindings described in Linux docs: 372878097c1SOleksandr Tymoshenko * bindings/media/video-interfaces.txt 373878097c1SOleksandr Tymoshenko * We assume that the only endpoint in LCDC node 374878097c1SOleksandr Tymoshenko * is HDMI framer. 375878097c1SOleksandr Tymoshenko */ 376878097c1SOleksandr Tymoshenko node = ofw_bus_find_child(node, "port"); 377878097c1SOleksandr Tymoshenko 378878097c1SOleksandr Tymoshenko /* No media bindings */ 379878097c1SOleksandr Tymoshenko if (node == 0) 380878097c1SOleksandr Tymoshenko return; 381878097c1SOleksandr Tymoshenko 382878097c1SOleksandr Tymoshenko for (endpoint = OF_child(node); endpoint != 0; endpoint = OF_peer(endpoint)) { 383dda19570SOleksandr Tymoshenko if (OF_getencprop(endpoint, "remote-endpoint", &xref, sizeof(xref)) != -1) { 384dda19570SOleksandr Tymoshenko /* port/port@0/endpoint@0 */ 385dda19570SOleksandr Tymoshenko node = OF_node_from_xref(xref); 386dda19570SOleksandr Tymoshenko /* port/port@0 */ 387878097c1SOleksandr Tymoshenko node = OF_parent(node); 388dda19570SOleksandr Tymoshenko /* port */ 389dda19570SOleksandr Tymoshenko node = OF_parent(node); 390dda19570SOleksandr Tymoshenko /* actual owner of port, in our case HDMI framer */ 391dda19570SOleksandr Tymoshenko sc->sc_hdmi_framer = OF_xref_from_node(OF_parent(node)); 392878097c1SOleksandr Tymoshenko if (sc->sc_hdmi_framer != 0) 393878097c1SOleksandr Tymoshenko return; 394878097c1SOleksandr Tymoshenko } 395878097c1SOleksandr Tymoshenko } 396224fba2bSOleksandr Tymoshenko } 397224fba2bSOleksandr Tymoshenko 39824ca3d19SOleksandr Tymoshenko static int 3995b03aba6SOleksandr Tymoshenko am335x_read_property(device_t dev, phandle_t node, const char *name, uint32_t *val) 40024ca3d19SOleksandr Tymoshenko { 40124ca3d19SOleksandr Tymoshenko pcell_t cell; 40224ca3d19SOleksandr Tymoshenko 4039783ea5cSAndrew Turner if ((OF_getencprop(node, name, &cell, sizeof(cell))) <= 0) { 40424ca3d19SOleksandr Tymoshenko device_printf(dev, "missing '%s' attribute in LCD panel info\n", 40524ca3d19SOleksandr Tymoshenko name); 40624ca3d19SOleksandr Tymoshenko return (ENXIO); 40724ca3d19SOleksandr Tymoshenko } 40824ca3d19SOleksandr Tymoshenko 4099783ea5cSAndrew Turner *val = cell; 41024ca3d19SOleksandr Tymoshenko 41124ca3d19SOleksandr Tymoshenko return (0); 41224ca3d19SOleksandr Tymoshenko } 41324ca3d19SOleksandr Tymoshenko 41424ca3d19SOleksandr Tymoshenko static int 4155b03aba6SOleksandr Tymoshenko am335x_read_timing(device_t dev, phandle_t node, struct panel_info *panel) 41624ca3d19SOleksandr Tymoshenko { 41724ca3d19SOleksandr Tymoshenko int error; 4185b03aba6SOleksandr Tymoshenko phandle_t timings_node, timing_node, native; 4195b03aba6SOleksandr Tymoshenko 42037c1967cSOleksandr Tymoshenko timings_node = ofw_bus_find_child(node, "display-timings"); 4215b03aba6SOleksandr Tymoshenko if (timings_node == 0) { 4225b03aba6SOleksandr Tymoshenko device_printf(dev, "no \"display-timings\" node\n"); 4235b03aba6SOleksandr Tymoshenko return (-1); 4245b03aba6SOleksandr Tymoshenko } 4255b03aba6SOleksandr Tymoshenko 4265b03aba6SOleksandr Tymoshenko if (OF_searchencprop(timings_node, "native-mode", &native, 4275b03aba6SOleksandr Tymoshenko sizeof(native)) == -1) { 4285b03aba6SOleksandr Tymoshenko device_printf(dev, "no \"native-mode\" reference in \"timings\" node\n"); 4295b03aba6SOleksandr Tymoshenko return (-1); 4305b03aba6SOleksandr Tymoshenko } 4315b03aba6SOleksandr Tymoshenko 4325b03aba6SOleksandr Tymoshenko timing_node = OF_node_from_xref(native); 43324ca3d19SOleksandr Tymoshenko 43424ca3d19SOleksandr Tymoshenko error = 0; 4355b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4365b03aba6SOleksandr Tymoshenko "hactive", &panel->panel_width))) 43724ca3d19SOleksandr Tymoshenko goto out; 43824ca3d19SOleksandr Tymoshenko 4395b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4405b03aba6SOleksandr Tymoshenko "vactive", &panel->panel_height))) 44124ca3d19SOleksandr Tymoshenko goto out; 44224ca3d19SOleksandr Tymoshenko 4435b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4445b03aba6SOleksandr Tymoshenko "hfront-porch", &panel->panel_hfp))) 44524ca3d19SOleksandr Tymoshenko goto out; 44624ca3d19SOleksandr Tymoshenko 4475b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4485b03aba6SOleksandr Tymoshenko "hback-porch", &panel->panel_hbp))) 44924ca3d19SOleksandr Tymoshenko goto out; 45024ca3d19SOleksandr Tymoshenko 4515b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4525b03aba6SOleksandr Tymoshenko "hsync-len", &panel->panel_hsw))) 45324ca3d19SOleksandr Tymoshenko goto out; 45424ca3d19SOleksandr Tymoshenko 4555b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4565b03aba6SOleksandr Tymoshenko "vfront-porch", &panel->panel_vfp))) 45724ca3d19SOleksandr Tymoshenko goto out; 45824ca3d19SOleksandr Tymoshenko 4595b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4605b03aba6SOleksandr Tymoshenko "vback-porch", &panel->panel_vbp))) 46124ca3d19SOleksandr Tymoshenko goto out; 46224ca3d19SOleksandr Tymoshenko 4635b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4645b03aba6SOleksandr Tymoshenko "vsync-len", &panel->panel_vsw))) 46524ca3d19SOleksandr Tymoshenko goto out; 46624ca3d19SOleksandr Tymoshenko 4675b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4685b03aba6SOleksandr Tymoshenko "clock-frequency", &panel->panel_pxl_clk))) 46924ca3d19SOleksandr Tymoshenko goto out; 47024ca3d19SOleksandr Tymoshenko 4715b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4725b03aba6SOleksandr Tymoshenko "pixelclk-active", &panel->pixelclk_active))) 47324ca3d19SOleksandr Tymoshenko goto out; 47424ca3d19SOleksandr Tymoshenko 4755b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4765b03aba6SOleksandr Tymoshenko "hsync-active", &panel->hsync_active))) 47724ca3d19SOleksandr Tymoshenko goto out; 47824ca3d19SOleksandr Tymoshenko 4795b03aba6SOleksandr Tymoshenko if ((error = am335x_read_property(dev, timing_node, 4805b03aba6SOleksandr Tymoshenko "vsync-active", &panel->vsync_active))) 48124ca3d19SOleksandr Tymoshenko goto out; 48224ca3d19SOleksandr Tymoshenko 4835b03aba6SOleksandr Tymoshenko out: 4845b03aba6SOleksandr Tymoshenko return (error); 4855b03aba6SOleksandr Tymoshenko } 4865b03aba6SOleksandr Tymoshenko 4875b03aba6SOleksandr Tymoshenko static int 4885b03aba6SOleksandr Tymoshenko am335x_read_panel_info(device_t dev, phandle_t node, struct panel_info *panel) 4895b03aba6SOleksandr Tymoshenko { 4905b03aba6SOleksandr Tymoshenko phandle_t panel_info_node; 4915b03aba6SOleksandr Tymoshenko 49237c1967cSOleksandr Tymoshenko panel_info_node = ofw_bus_find_child(node, "panel-info"); 4935b03aba6SOleksandr Tymoshenko if (panel_info_node == 0) 4945b03aba6SOleksandr Tymoshenko return (-1); 4955b03aba6SOleksandr Tymoshenko 496224fba2bSOleksandr Tymoshenko am335x_read_property(dev, panel_info_node, 497224fba2bSOleksandr Tymoshenko "ac-bias", &panel->ac_bias); 4985b03aba6SOleksandr Tymoshenko 499224fba2bSOleksandr Tymoshenko am335x_read_property(dev, panel_info_node, 500224fba2bSOleksandr Tymoshenko "ac-bias-intrpt", &panel->ac_bias_intrpt); 50124ca3d19SOleksandr Tymoshenko 502224fba2bSOleksandr Tymoshenko am335x_read_property(dev, panel_info_node, 503224fba2bSOleksandr Tymoshenko "dma-burst-sz", &panel->dma_burst_sz); 5045b03aba6SOleksandr Tymoshenko 505224fba2bSOleksandr Tymoshenko am335x_read_property(dev, panel_info_node, 506224fba2bSOleksandr Tymoshenko "bpp", &panel->bpp); 5075b03aba6SOleksandr Tymoshenko 508224fba2bSOleksandr Tymoshenko am335x_read_property(dev, panel_info_node, 509224fba2bSOleksandr Tymoshenko "fdd", &panel->fdd); 51024ca3d19SOleksandr Tymoshenko 511224fba2bSOleksandr Tymoshenko am335x_read_property(dev, panel_info_node, 512224fba2bSOleksandr Tymoshenko "sync-edge", &panel->sync_edge); 51324ca3d19SOleksandr Tymoshenko 514224fba2bSOleksandr Tymoshenko am335x_read_property(dev, panel_info_node, 5155b03aba6SOleksandr Tymoshenko "sync-ctrl", &panel->sync_ctrl); 51624ca3d19SOleksandr Tymoshenko 517224fba2bSOleksandr Tymoshenko return (0); 51824ca3d19SOleksandr Tymoshenko } 51924ca3d19SOleksandr Tymoshenko 52024ca3d19SOleksandr Tymoshenko static void 52124ca3d19SOleksandr Tymoshenko am335x_lcd_intr(void *arg) 52224ca3d19SOleksandr Tymoshenko { 52324ca3d19SOleksandr Tymoshenko struct am335x_lcd_softc *sc = arg; 52424ca3d19SOleksandr Tymoshenko uint32_t reg; 52524ca3d19SOleksandr Tymoshenko 52624ca3d19SOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_IRQSTATUS); 52724ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_IRQSTATUS, reg); 5285967db8dSOleksandr Tymoshenko /* Read value back to make sure it reached the hardware */ 5295967db8dSOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_IRQSTATUS); 53024ca3d19SOleksandr Tymoshenko 53124ca3d19SOleksandr Tymoshenko if (reg & IRQ_SYNC_LOST) { 53224ca3d19SOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_RASTER_CTRL); 53324ca3d19SOleksandr Tymoshenko reg &= ~RASTER_CTRL_LCDEN; 53424ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_CTRL, reg); 53524ca3d19SOleksandr Tymoshenko 53624ca3d19SOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_RASTER_CTRL); 53724ca3d19SOleksandr Tymoshenko reg |= RASTER_CTRL_LCDEN; 53824ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_CTRL, reg); 539fbae9a50SOleksandr Tymoshenko goto done; 54024ca3d19SOleksandr Tymoshenko } 54124ca3d19SOleksandr Tymoshenko 54224ca3d19SOleksandr Tymoshenko if (reg & IRQ_PL) { 54324ca3d19SOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_RASTER_CTRL); 54424ca3d19SOleksandr Tymoshenko reg &= ~RASTER_CTRL_LCDEN; 54524ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_CTRL, reg); 54624ca3d19SOleksandr Tymoshenko 54724ca3d19SOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_RASTER_CTRL); 54824ca3d19SOleksandr Tymoshenko reg |= RASTER_CTRL_LCDEN; 54924ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_CTRL, reg); 550fbae9a50SOleksandr Tymoshenko goto done; 55124ca3d19SOleksandr Tymoshenko } 55224ca3d19SOleksandr Tymoshenko 55324ca3d19SOleksandr Tymoshenko if (reg & IRQ_EOF0) { 55424ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB0_BASE, sc->sc_fb_phys); 55524ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB0_CEILING, sc->sc_fb_phys + sc->sc_fb_size - 1); 55624ca3d19SOleksandr Tymoshenko reg &= ~IRQ_EOF0; 55724ca3d19SOleksandr Tymoshenko } 55824ca3d19SOleksandr Tymoshenko 55924ca3d19SOleksandr Tymoshenko if (reg & IRQ_EOF1) { 56024ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB1_BASE, sc->sc_fb_phys); 56124ca3d19SOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB1_CEILING, sc->sc_fb_phys + sc->sc_fb_size - 1); 56224ca3d19SOleksandr Tymoshenko reg &= ~IRQ_EOF1; 56324ca3d19SOleksandr Tymoshenko } 56424ca3d19SOleksandr Tymoshenko 56524ca3d19SOleksandr Tymoshenko if (reg & IRQ_FUF) { 56624ca3d19SOleksandr Tymoshenko /* TODO: Handle FUF */ 56724ca3d19SOleksandr Tymoshenko } 56824ca3d19SOleksandr Tymoshenko 56924ca3d19SOleksandr Tymoshenko if (reg & IRQ_ACB) { 57024ca3d19SOleksandr Tymoshenko /* TODO: Handle ACB */ 57124ca3d19SOleksandr Tymoshenko } 572eaf6610dSOleksandr Tymoshenko 573fbae9a50SOleksandr Tymoshenko done: 574eaf6610dSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_END_OF_INT_IND, 0); 5755967db8dSOleksandr Tymoshenko /* Read value back to make sure it reached the hardware */ 5765967db8dSOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_END_OF_INT_IND); 57724ca3d19SOleksandr Tymoshenko } 57824ca3d19SOleksandr Tymoshenko 579224fba2bSOleksandr Tymoshenko static const struct videomode * 580224fba2bSOleksandr Tymoshenko am335x_lcd_pick_mode(struct edid_info *ei) 581224fba2bSOleksandr Tymoshenko { 582224fba2bSOleksandr Tymoshenko const struct videomode *videomode; 583224fba2bSOleksandr Tymoshenko const struct videomode *m; 584224fba2bSOleksandr Tymoshenko int n; 585224fba2bSOleksandr Tymoshenko 586224fba2bSOleksandr Tymoshenko /* Get standard VGA as default */ 587224fba2bSOleksandr Tymoshenko videomode = NULL; 588224fba2bSOleksandr Tymoshenko 589224fba2bSOleksandr Tymoshenko /* 590224fba2bSOleksandr Tymoshenko * Pick a mode. 591224fba2bSOleksandr Tymoshenko */ 592224fba2bSOleksandr Tymoshenko if (ei->edid_preferred_mode != NULL) { 593224fba2bSOleksandr Tymoshenko if (am335x_mode_is_valid(ei->edid_preferred_mode)) 594224fba2bSOleksandr Tymoshenko videomode = ei->edid_preferred_mode; 595224fba2bSOleksandr Tymoshenko } 596224fba2bSOleksandr Tymoshenko 597224fba2bSOleksandr Tymoshenko if (videomode == NULL) { 598224fba2bSOleksandr Tymoshenko m = ei->edid_modes; 599224fba2bSOleksandr Tymoshenko 600224fba2bSOleksandr Tymoshenko sort_modes(ei->edid_modes, 601224fba2bSOleksandr Tymoshenko &ei->edid_preferred_mode, 602224fba2bSOleksandr Tymoshenko ei->edid_nmodes); 603224fba2bSOleksandr Tymoshenko for (n = 0; n < ei->edid_nmodes; n++) 604224fba2bSOleksandr Tymoshenko if (am335x_mode_is_valid(&m[n])) { 605224fba2bSOleksandr Tymoshenko videomode = &m[n]; 606224fba2bSOleksandr Tymoshenko break; 607224fba2bSOleksandr Tymoshenko } 608224fba2bSOleksandr Tymoshenko } 609224fba2bSOleksandr Tymoshenko 610224fba2bSOleksandr Tymoshenko return videomode; 611224fba2bSOleksandr Tymoshenko } 612224fba2bSOleksandr Tymoshenko 613224fba2bSOleksandr Tymoshenko static int 614224fba2bSOleksandr Tymoshenko am335x_lcd_configure(struct am335x_lcd_softc *sc) 615224fba2bSOleksandr Tymoshenko { 616224fba2bSOleksandr Tymoshenko int div; 617224fba2bSOleksandr Tymoshenko uint32_t reg, timing0, timing1, timing2; 618224fba2bSOleksandr Tymoshenko uint32_t burst_log; 619224fba2bSOleksandr Tymoshenko size_t dma_size; 620224fba2bSOleksandr Tymoshenko uint32_t hbp, hfp, hsw; 621224fba2bSOleksandr Tymoshenko uint32_t vbp, vfp, vsw; 622224fba2bSOleksandr Tymoshenko uint32_t width, height; 6230050ea24SMichal Meloun uint64_t ref_freq; 624224fba2bSOleksandr Tymoshenko int err; 625224fba2bSOleksandr Tymoshenko 626224fba2bSOleksandr Tymoshenko /* 627224fba2bSOleksandr Tymoshenko * try to adjust clock to get double of requested frequency 628224fba2bSOleksandr Tymoshenko * HDMI/DVI displays are very sensitive to error in frequncy value 629224fba2bSOleksandr Tymoshenko */ 6300050ea24SMichal Meloun 6310050ea24SMichal Meloun err = clk_set_freq(sc->sc_clk_dpll_disp_ck, sc->sc_panel.panel_pxl_clk*2, 6320050ea24SMichal Meloun CLK_SET_ROUND_ANY); 6330050ea24SMichal Meloun if (err != 0) { 634224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "can't set source frequency\n"); 635224fba2bSOleksandr Tymoshenko return (ENXIO); 636224fba2bSOleksandr Tymoshenko } 637224fba2bSOleksandr Tymoshenko 6380050ea24SMichal Meloun err = clk_get_freq(sc->sc_clk_dpll_disp_ck, &ref_freq); 6390050ea24SMichal Meloun if (err != 0) { 640224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "can't get reference frequency\n"); 641224fba2bSOleksandr Tymoshenko return (ENXIO); 642224fba2bSOleksandr Tymoshenko } 643224fba2bSOleksandr Tymoshenko 6440050ea24SMichal Meloun /* Panel initialization */ 645224fba2bSOleksandr Tymoshenko dma_size = round_page(sc->sc_panel.panel_width*sc->sc_panel.panel_height*sc->sc_panel.bpp/8); 646224fba2bSOleksandr Tymoshenko 647224fba2bSOleksandr Tymoshenko /* 648224fba2bSOleksandr Tymoshenko * Now allocate framebuffer memory 649224fba2bSOleksandr Tymoshenko */ 650224fba2bSOleksandr Tymoshenko err = bus_dma_tag_create( 651224fba2bSOleksandr Tymoshenko bus_get_dma_tag(sc->sc_dev), 652224fba2bSOleksandr Tymoshenko 4, 0, /* alignment, boundary */ 653224fba2bSOleksandr Tymoshenko BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 654224fba2bSOleksandr Tymoshenko BUS_SPACE_MAXADDR, /* highaddr */ 655224fba2bSOleksandr Tymoshenko NULL, NULL, /* filter, filterarg */ 656224fba2bSOleksandr Tymoshenko dma_size, 1, /* maxsize, nsegments */ 657224fba2bSOleksandr Tymoshenko dma_size, 0, /* maxsegsize, flags */ 658224fba2bSOleksandr Tymoshenko NULL, NULL, /* lockfunc, lockarg */ 659224fba2bSOleksandr Tymoshenko &sc->sc_dma_tag); 660224fba2bSOleksandr Tymoshenko if (err) 661224fba2bSOleksandr Tymoshenko goto done; 662224fba2bSOleksandr Tymoshenko 663224fba2bSOleksandr Tymoshenko err = bus_dmamem_alloc(sc->sc_dma_tag, (void **)&sc->sc_fb_base, 664224fba2bSOleksandr Tymoshenko BUS_DMA_COHERENT, &sc->sc_dma_map); 665224fba2bSOleksandr Tymoshenko 666224fba2bSOleksandr Tymoshenko if (err) { 667224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "cannot allocate framebuffer\n"); 668224fba2bSOleksandr Tymoshenko goto done; 669224fba2bSOleksandr Tymoshenko } 670224fba2bSOleksandr Tymoshenko 671224fba2bSOleksandr Tymoshenko err = bus_dmamap_load(sc->sc_dma_tag, sc->sc_dma_map, sc->sc_fb_base, 672224fba2bSOleksandr Tymoshenko dma_size, am335x_fb_dmamap_cb, &sc->sc_fb_phys, BUS_DMA_NOWAIT); 673224fba2bSOleksandr Tymoshenko 674224fba2bSOleksandr Tymoshenko if (err) { 675224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "cannot load DMA map\n"); 676224fba2bSOleksandr Tymoshenko goto done; 677224fba2bSOleksandr Tymoshenko } 678224fba2bSOleksandr Tymoshenko 679224fba2bSOleksandr Tymoshenko /* Make sure it's blank */ 680224fba2bSOleksandr Tymoshenko memset(sc->sc_fb_base, 0x0, dma_size); 681224fba2bSOleksandr Tymoshenko 682224fba2bSOleksandr Tymoshenko /* Calculate actual FB Size */ 683224fba2bSOleksandr Tymoshenko sc->sc_fb_size = sc->sc_panel.panel_width*sc->sc_panel.panel_height*sc->sc_panel.bpp/8; 684224fba2bSOleksandr Tymoshenko 685224fba2bSOleksandr Tymoshenko /* Only raster mode is supported */ 686224fba2bSOleksandr Tymoshenko reg = CTRL_RASTER_MODE; 687224fba2bSOleksandr Tymoshenko div = am335x_lcd_calc_divisor(ref_freq, sc->sc_panel.panel_pxl_clk); 688224fba2bSOleksandr Tymoshenko reg |= (div << CTRL_DIV_SHIFT); 689224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_CTRL, reg); 690224fba2bSOleksandr Tymoshenko 691224fba2bSOleksandr Tymoshenko /* Set timing */ 692224fba2bSOleksandr Tymoshenko timing0 = timing1 = timing2 = 0; 693224fba2bSOleksandr Tymoshenko 694224fba2bSOleksandr Tymoshenko hbp = sc->sc_panel.panel_hbp - 1; 695224fba2bSOleksandr Tymoshenko hfp = sc->sc_panel.panel_hfp - 1; 696224fba2bSOleksandr Tymoshenko hsw = sc->sc_panel.panel_hsw - 1; 697224fba2bSOleksandr Tymoshenko 698224fba2bSOleksandr Tymoshenko vbp = sc->sc_panel.panel_vbp; 699224fba2bSOleksandr Tymoshenko vfp = sc->sc_panel.panel_vfp; 700224fba2bSOleksandr Tymoshenko vsw = sc->sc_panel.panel_vsw - 1; 701224fba2bSOleksandr Tymoshenko 702224fba2bSOleksandr Tymoshenko height = sc->sc_panel.panel_height - 1; 703224fba2bSOleksandr Tymoshenko width = sc->sc_panel.panel_width - 1; 704224fba2bSOleksandr Tymoshenko 705224fba2bSOleksandr Tymoshenko /* Horizontal back porch */ 706224fba2bSOleksandr Tymoshenko timing0 |= (hbp & 0xff) << RASTER_TIMING_0_HBP_SHIFT; 707224fba2bSOleksandr Tymoshenko timing2 |= ((hbp >> 8) & 3) << RASTER_TIMING_2_HBPHI_SHIFT; 708224fba2bSOleksandr Tymoshenko /* Horizontal front porch */ 709224fba2bSOleksandr Tymoshenko timing0 |= (hfp & 0xff) << RASTER_TIMING_0_HFP_SHIFT; 710224fba2bSOleksandr Tymoshenko timing2 |= ((hfp >> 8) & 3) << RASTER_TIMING_2_HFPHI_SHIFT; 711224fba2bSOleksandr Tymoshenko /* Horizontal sync width */ 712224fba2bSOleksandr Tymoshenko timing0 |= (hsw & 0x3f) << RASTER_TIMING_0_HSW_SHIFT; 713224fba2bSOleksandr Tymoshenko timing2 |= ((hsw >> 6) & 0xf) << RASTER_TIMING_2_HSWHI_SHIFT; 714224fba2bSOleksandr Tymoshenko 715224fba2bSOleksandr Tymoshenko /* Vertical back porch, front porch, sync width */ 716224fba2bSOleksandr Tymoshenko timing1 |= (vbp & 0xff) << RASTER_TIMING_1_VBP_SHIFT; 717224fba2bSOleksandr Tymoshenko timing1 |= (vfp & 0xff) << RASTER_TIMING_1_VFP_SHIFT; 718224fba2bSOleksandr Tymoshenko timing1 |= (vsw & 0x3f) << RASTER_TIMING_1_VSW_SHIFT; 719224fba2bSOleksandr Tymoshenko 720224fba2bSOleksandr Tymoshenko /* Pixels per line */ 721224fba2bSOleksandr Tymoshenko timing0 |= ((width >> 10) & 1) 722224fba2bSOleksandr Tymoshenko << RASTER_TIMING_0_PPLMSB_SHIFT; 723224fba2bSOleksandr Tymoshenko timing0 |= ((width >> 4) & 0x3f) 724224fba2bSOleksandr Tymoshenko << RASTER_TIMING_0_PPLLSB_SHIFT; 725224fba2bSOleksandr Tymoshenko 726224fba2bSOleksandr Tymoshenko /* Lines per panel */ 727224fba2bSOleksandr Tymoshenko timing1 |= (height & 0x3ff) 728224fba2bSOleksandr Tymoshenko << RASTER_TIMING_1_LPP_SHIFT; 729224fba2bSOleksandr Tymoshenko timing2 |= ((height >> 10 ) & 1) 730224fba2bSOleksandr Tymoshenko << RASTER_TIMING_2_LPP_B10_SHIFT; 731224fba2bSOleksandr Tymoshenko 732224fba2bSOleksandr Tymoshenko /* clock signal settings */ 733224fba2bSOleksandr Tymoshenko if (sc->sc_panel.sync_ctrl) 734224fba2bSOleksandr Tymoshenko timing2 |= RASTER_TIMING_2_PHSVS; 735224fba2bSOleksandr Tymoshenko if (sc->sc_panel.sync_edge) 736224fba2bSOleksandr Tymoshenko timing2 |= RASTER_TIMING_2_PHSVS_RISE; 737224fba2bSOleksandr Tymoshenko else 738224fba2bSOleksandr Tymoshenko timing2 |= RASTER_TIMING_2_PHSVS_FALL; 739224fba2bSOleksandr Tymoshenko if (sc->sc_panel.hsync_active == 0) 740224fba2bSOleksandr Tymoshenko timing2 |= RASTER_TIMING_2_IHS; 741224fba2bSOleksandr Tymoshenko if (sc->sc_panel.vsync_active == 0) 742224fba2bSOleksandr Tymoshenko timing2 |= RASTER_TIMING_2_IVS; 743224fba2bSOleksandr Tymoshenko if (sc->sc_panel.pixelclk_active == 0) 744224fba2bSOleksandr Tymoshenko timing2 |= RASTER_TIMING_2_IPC; 745224fba2bSOleksandr Tymoshenko 746224fba2bSOleksandr Tymoshenko /* AC bias */ 747224fba2bSOleksandr Tymoshenko timing2 |= (sc->sc_panel.ac_bias << RASTER_TIMING_2_ACB_SHIFT); 748224fba2bSOleksandr Tymoshenko timing2 |= (sc->sc_panel.ac_bias_intrpt << RASTER_TIMING_2_ACBI_SHIFT); 749224fba2bSOleksandr Tymoshenko 750224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_TIMING_0, timing0); 751224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_TIMING_1, timing1); 752224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_TIMING_2, timing2); 753224fba2bSOleksandr Tymoshenko 754224fba2bSOleksandr Tymoshenko /* DMA settings */ 755224fba2bSOleksandr Tymoshenko reg = LCDDMA_CTRL_FB0_FB1; 756224fba2bSOleksandr Tymoshenko /* Find power of 2 for current burst size */ 757224fba2bSOleksandr Tymoshenko switch (sc->sc_panel.dma_burst_sz) { 758224fba2bSOleksandr Tymoshenko case 1: 759224fba2bSOleksandr Tymoshenko burst_log = 0; 760224fba2bSOleksandr Tymoshenko break; 761224fba2bSOleksandr Tymoshenko case 2: 762224fba2bSOleksandr Tymoshenko burst_log = 1; 763224fba2bSOleksandr Tymoshenko break; 764224fba2bSOleksandr Tymoshenko case 4: 765224fba2bSOleksandr Tymoshenko burst_log = 2; 766224fba2bSOleksandr Tymoshenko break; 767224fba2bSOleksandr Tymoshenko case 8: 768224fba2bSOleksandr Tymoshenko burst_log = 3; 769224fba2bSOleksandr Tymoshenko break; 770224fba2bSOleksandr Tymoshenko case 16: 771224fba2bSOleksandr Tymoshenko default: 772224fba2bSOleksandr Tymoshenko burst_log = 4; 773224fba2bSOleksandr Tymoshenko break; 774224fba2bSOleksandr Tymoshenko } 775224fba2bSOleksandr Tymoshenko reg |= (burst_log << LCDDMA_CTRL_BURST_SIZE_SHIFT); 776224fba2bSOleksandr Tymoshenko /* XXX: FIFO TH */ 777224fba2bSOleksandr Tymoshenko reg |= (0 << LCDDMA_CTRL_TH_FIFO_RDY_SHIFT); 778224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_CTRL, reg); 779224fba2bSOleksandr Tymoshenko 780224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB0_BASE, sc->sc_fb_phys); 781224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB0_CEILING, sc->sc_fb_phys + sc->sc_fb_size - 1); 782224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB1_BASE, sc->sc_fb_phys); 783224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_LCDDMA_FB1_CEILING, sc->sc_fb_phys + sc->sc_fb_size - 1); 784224fba2bSOleksandr Tymoshenko 785224fba2bSOleksandr Tymoshenko /* Enable LCD */ 786224fba2bSOleksandr Tymoshenko reg = RASTER_CTRL_LCDTFT; 787224fba2bSOleksandr Tymoshenko reg |= (sc->sc_panel.fdd << RASTER_CTRL_REQDLY_SHIFT); 788224fba2bSOleksandr Tymoshenko reg |= (PALETTE_DATA_ONLY << RASTER_CTRL_PALMODE_SHIFT); 789224fba2bSOleksandr Tymoshenko if (sc->sc_panel.bpp >= 24) 790224fba2bSOleksandr Tymoshenko reg |= RASTER_CTRL_TFT24; 791224fba2bSOleksandr Tymoshenko if (sc->sc_panel.bpp == 32) 792224fba2bSOleksandr Tymoshenko reg |= RASTER_CTRL_TFT24_UNPACKED; 793224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_CTRL, reg); 794224fba2bSOleksandr Tymoshenko 795224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_CLKC_ENABLE, 796224fba2bSOleksandr Tymoshenko CLKC_ENABLE_DMA | CLKC_ENABLE_LDID | CLKC_ENABLE_CORE); 797224fba2bSOleksandr Tymoshenko 798224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_CLKC_RESET, CLKC_RESET_MAIN); 799224fba2bSOleksandr Tymoshenko DELAY(100); 800224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_CLKC_RESET, 0); 801224fba2bSOleksandr Tymoshenko 802224fba2bSOleksandr Tymoshenko reg = IRQ_EOF1 | IRQ_EOF0 | IRQ_FUF | IRQ_PL | 803224fba2bSOleksandr Tymoshenko IRQ_ACB | IRQ_SYNC_LOST | IRQ_RASTER_DONE | 804224fba2bSOleksandr Tymoshenko IRQ_FRAME_DONE; 805224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_IRQENABLE_SET, reg); 806224fba2bSOleksandr Tymoshenko 807224fba2bSOleksandr Tymoshenko reg = LCD_READ4(sc, LCD_RASTER_CTRL); 808224fba2bSOleksandr Tymoshenko reg |= RASTER_CTRL_LCDEN; 809224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_RASTER_CTRL, reg); 810224fba2bSOleksandr Tymoshenko 811224fba2bSOleksandr Tymoshenko LCD_WRITE4(sc, LCD_SYSCONFIG, 812224fba2bSOleksandr Tymoshenko SYSCONFIG_STANDBY_SMART | SYSCONFIG_IDLE_SMART); 813224fba2bSOleksandr Tymoshenko 814224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_name = device_get_nameunit(sc->sc_dev); 815224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_vbase = (intptr_t)sc->sc_fb_base; 816224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_pbase = sc->sc_fb_phys; 817224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_size = sc->sc_fb_size; 818224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_bpp = sc->sc_fb_info.fb_depth = sc->sc_panel.bpp; 819224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_stride = sc->sc_panel.panel_width*sc->sc_panel.bpp / 8; 820224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_width = sc->sc_panel.panel_width; 821224fba2bSOleksandr Tymoshenko sc->sc_fb_info.fb_height = sc->sc_panel.panel_height; 822224fba2bSOleksandr Tymoshenko 823224fba2bSOleksandr Tymoshenko #ifdef DEV_SC 824224fba2bSOleksandr Tymoshenko err = (sc_attach_unit(device_get_unit(sc->sc_dev), 825224fba2bSOleksandr Tymoshenko device_get_flags(sc->sc_dev) | SC_AUTODETECT_KBD)); 826224fba2bSOleksandr Tymoshenko 827224fba2bSOleksandr Tymoshenko if (err) { 828224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "failed to attach syscons\n"); 829224fba2bSOleksandr Tymoshenko goto fail; 830224fba2bSOleksandr Tymoshenko } 831224fba2bSOleksandr Tymoshenko 832224fba2bSOleksandr Tymoshenko am335x_lcd_syscons_setup((vm_offset_t)sc->sc_fb_base, sc->sc_fb_phys, &panel); 833224fba2bSOleksandr Tymoshenko #else /* VT */ 834224fba2bSOleksandr Tymoshenko device_t fbd = device_add_child(sc->sc_dev, "fbd", 835224fba2bSOleksandr Tymoshenko device_get_unit(sc->sc_dev)); 836224fba2bSOleksandr Tymoshenko if (fbd != NULL) { 837224fba2bSOleksandr Tymoshenko if (device_probe_and_attach(fbd) != 0) 838224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "failed to attach fbd device\n"); 839224fba2bSOleksandr Tymoshenko } else 840224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "failed to add fbd child\n"); 841224fba2bSOleksandr Tymoshenko #endif 842224fba2bSOleksandr Tymoshenko 843224fba2bSOleksandr Tymoshenko done: 844224fba2bSOleksandr Tymoshenko return (err); 845224fba2bSOleksandr Tymoshenko } 846224fba2bSOleksandr Tymoshenko 847224fba2bSOleksandr Tymoshenko static void 8486f79d9e9SOleksandr Tymoshenko am335x_lcd_hdmi_event(void *arg, device_t hdmi, int event) 849224fba2bSOleksandr Tymoshenko { 850224fba2bSOleksandr Tymoshenko struct am335x_lcd_softc *sc; 851224fba2bSOleksandr Tymoshenko const struct videomode *videomode; 852224fba2bSOleksandr Tymoshenko struct videomode hdmi_mode; 853224fba2bSOleksandr Tymoshenko device_t hdmi_dev; 854224fba2bSOleksandr Tymoshenko uint8_t *edid; 855224fba2bSOleksandr Tymoshenko uint32_t edid_len; 856224fba2bSOleksandr Tymoshenko struct edid_info ei; 857224fba2bSOleksandr Tymoshenko 858224fba2bSOleksandr Tymoshenko sc = arg; 859224fba2bSOleksandr Tymoshenko 860224fba2bSOleksandr Tymoshenko /* Nothing to work with */ 861224fba2bSOleksandr Tymoshenko if (!sc->sc_hdmi_framer) { 862224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "HDMI event without HDMI framer set\n"); 863224fba2bSOleksandr Tymoshenko return; 864224fba2bSOleksandr Tymoshenko } 865224fba2bSOleksandr Tymoshenko 866224fba2bSOleksandr Tymoshenko hdmi_dev = OF_device_from_xref(sc->sc_hdmi_framer); 867224fba2bSOleksandr Tymoshenko if (!hdmi_dev) { 868224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "no actual device for \"hdmi\" property\n"); 869224fba2bSOleksandr Tymoshenko return; 870224fba2bSOleksandr Tymoshenko } 871224fba2bSOleksandr Tymoshenko 872224fba2bSOleksandr Tymoshenko edid = NULL; 873224fba2bSOleksandr Tymoshenko edid_len = 0; 874224fba2bSOleksandr Tymoshenko if (HDMI_GET_EDID(hdmi_dev, &edid, &edid_len) != 0) { 875224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "failed to get EDID info from HDMI framer\n"); 876224fba2bSOleksandr Tymoshenko return; 877224fba2bSOleksandr Tymoshenko } 878224fba2bSOleksandr Tymoshenko 879224fba2bSOleksandr Tymoshenko videomode = NULL; 880224fba2bSOleksandr Tymoshenko 881224fba2bSOleksandr Tymoshenko if (edid_parse(edid, &ei) == 0) { 882224fba2bSOleksandr Tymoshenko edid_print(&ei); 883224fba2bSOleksandr Tymoshenko videomode = am335x_lcd_pick_mode(&ei); 884224fba2bSOleksandr Tymoshenko } else 885224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "failed to parse EDID\n"); 886224fba2bSOleksandr Tymoshenko 887224fba2bSOleksandr Tymoshenko /* Use standard VGA as fallback */ 888224fba2bSOleksandr Tymoshenko if (videomode == NULL) 889224fba2bSOleksandr Tymoshenko videomode = pick_mode_by_ref(640, 480, 60); 890224fba2bSOleksandr Tymoshenko 891224fba2bSOleksandr Tymoshenko if (videomode == NULL) { 892224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "failed to find usable videomode"); 893224fba2bSOleksandr Tymoshenko return; 894224fba2bSOleksandr Tymoshenko } 895224fba2bSOleksandr Tymoshenko 896224fba2bSOleksandr Tymoshenko device_printf(sc->sc_dev, "detected videomode: %dx%d @ %dKHz\n", videomode->hdisplay, 897224fba2bSOleksandr Tymoshenko videomode->vdisplay, am335x_mode_vrefresh(videomode)); 898224fba2bSOleksandr Tymoshenko 899224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_width = videomode->hdisplay; 900224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_height = videomode->vdisplay; 901224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_hfp = videomode->hsync_start - videomode->hdisplay; 902224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_hbp = videomode->htotal - videomode->hsync_end; 903224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_hsw = videomode->hsync_end - videomode->hsync_start; 904224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_vfp = videomode->vsync_start - videomode->vdisplay; 905224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_vbp = videomode->vtotal - videomode->vsync_end; 906224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_vsw = videomode->vsync_end - videomode->vsync_start; 907224fba2bSOleksandr Tymoshenko sc->sc_panel.pixelclk_active = 1; 908224fba2bSOleksandr Tymoshenko 909224fba2bSOleksandr Tymoshenko /* logic for HSYNC should be reversed */ 910224fba2bSOleksandr Tymoshenko if (videomode->flags & VID_NHSYNC) 911224fba2bSOleksandr Tymoshenko sc->sc_panel.hsync_active = 1; 912224fba2bSOleksandr Tymoshenko else 913224fba2bSOleksandr Tymoshenko sc->sc_panel.hsync_active = 0; 914224fba2bSOleksandr Tymoshenko 915224fba2bSOleksandr Tymoshenko if (videomode->flags & VID_NVSYNC) 916224fba2bSOleksandr Tymoshenko sc->sc_panel.vsync_active = 0; 917224fba2bSOleksandr Tymoshenko else 918224fba2bSOleksandr Tymoshenko sc->sc_panel.vsync_active = 1; 919224fba2bSOleksandr Tymoshenko 920224fba2bSOleksandr Tymoshenko sc->sc_panel.panel_pxl_clk = videomode->dot_clock * 1000; 921224fba2bSOleksandr Tymoshenko 922224fba2bSOleksandr Tymoshenko am335x_lcd_configure(sc); 923224fba2bSOleksandr Tymoshenko 924224fba2bSOleksandr Tymoshenko memcpy(&hdmi_mode, videomode, sizeof(hdmi_mode)); 925224fba2bSOleksandr Tymoshenko hdmi_mode.hskew = videomode->hsync_end - videomode->hsync_start; 926224fba2bSOleksandr Tymoshenko hdmi_mode.flags |= VID_HSKEW; 927224fba2bSOleksandr Tymoshenko 928224fba2bSOleksandr Tymoshenko HDMI_SET_VIDEOMODE(hdmi_dev, &hdmi_mode); 929224fba2bSOleksandr Tymoshenko } 930224fba2bSOleksandr Tymoshenko 93124ca3d19SOleksandr Tymoshenko static int 93224ca3d19SOleksandr Tymoshenko am335x_lcd_probe(device_t dev) 93324ca3d19SOleksandr Tymoshenko { 93472584f4cSOleksandr Tymoshenko #ifdef DEV_SC 93502ff64b8SOleksandr Tymoshenko int err; 93672584f4cSOleksandr Tymoshenko #endif 93702ff64b8SOleksandr Tymoshenko 938add35ed5SIan Lepore if (!ofw_bus_status_okay(dev)) 939add35ed5SIan Lepore return (ENXIO); 940add35ed5SIan Lepore 9415b03aba6SOleksandr Tymoshenko if (!ofw_bus_is_compatible(dev, "ti,am33xx-tilcdc")) 94224ca3d19SOleksandr Tymoshenko return (ENXIO); 94324ca3d19SOleksandr Tymoshenko 94424ca3d19SOleksandr Tymoshenko device_set_desc(dev, "AM335x LCD controller"); 94524ca3d19SOleksandr Tymoshenko 94672584f4cSOleksandr Tymoshenko #ifdef DEV_SC 94702ff64b8SOleksandr Tymoshenko err = sc_probe_unit(device_get_unit(dev), 94802ff64b8SOleksandr Tymoshenko device_get_flags(dev) | SC_AUTODETECT_KBD); 94902ff64b8SOleksandr Tymoshenko if (err != 0) 95002ff64b8SOleksandr Tymoshenko return (err); 95172584f4cSOleksandr Tymoshenko #endif 95202ff64b8SOleksandr Tymoshenko 95302ff64b8SOleksandr Tymoshenko return (BUS_PROBE_DEFAULT); 95424ca3d19SOleksandr Tymoshenko } 95524ca3d19SOleksandr Tymoshenko 95624ca3d19SOleksandr Tymoshenko static int 95724ca3d19SOleksandr Tymoshenko am335x_lcd_attach(device_t dev) 95824ca3d19SOleksandr Tymoshenko { 95924ca3d19SOleksandr Tymoshenko struct am335x_lcd_softc *sc; 960224fba2bSOleksandr Tymoshenko 961224fba2bSOleksandr Tymoshenko int err; 96224ca3d19SOleksandr Tymoshenko int rid; 96324ca3d19SOleksandr Tymoshenko struct sysctl_ctx_list *ctx; 96424ca3d19SOleksandr Tymoshenko struct sysctl_oid *tree; 9655b03aba6SOleksandr Tymoshenko phandle_t root, panel_node; 96624ca3d19SOleksandr Tymoshenko 967224fba2bSOleksandr Tymoshenko err = 0; 96824ca3d19SOleksandr Tymoshenko sc = device_get_softc(dev); 96924ca3d19SOleksandr Tymoshenko sc->sc_dev = dev; 97024ca3d19SOleksandr Tymoshenko 971224fba2bSOleksandr Tymoshenko am335x_read_hdmi_property(dev); 972224fba2bSOleksandr Tymoshenko 9735b03aba6SOleksandr Tymoshenko root = OF_finddevice("/"); 974108117ccSOleksandr Tymoshenko if (root == -1) { 9755b03aba6SOleksandr Tymoshenko device_printf(dev, "failed to get FDT root node\n"); 97624ca3d19SOleksandr Tymoshenko return (ENXIO); 9775b03aba6SOleksandr Tymoshenko } 9785b03aba6SOleksandr Tymoshenko 9790050ea24SMichal Meloun /* Fixme: Cant find any reference in DTS for dpll_disp_ck@498 for now. */ 9800050ea24SMichal Meloun err = clk_get_by_name(dev, "dpll_disp_ck@498", &sc->sc_clk_dpll_disp_ck); 9810050ea24SMichal Meloun if (err != 0) { 9820050ea24SMichal Meloun device_printf(dev, "Cant get dpll_disp_ck@49\n"); 9830050ea24SMichal Meloun return (ENXIO); 9840050ea24SMichal Meloun } 9850050ea24SMichal Meloun 986224fba2bSOleksandr Tymoshenko sc->sc_panel.ac_bias = 255; 987224fba2bSOleksandr Tymoshenko sc->sc_panel.ac_bias_intrpt = 0; 988224fba2bSOleksandr Tymoshenko sc->sc_panel.dma_burst_sz = 16; 989224fba2bSOleksandr Tymoshenko sc->sc_panel.bpp = 16; 990224fba2bSOleksandr Tymoshenko sc->sc_panel.fdd = 128; 991224fba2bSOleksandr Tymoshenko sc->sc_panel.sync_edge = 0; 992224fba2bSOleksandr Tymoshenko sc->sc_panel.sync_ctrl = 1; 9935b03aba6SOleksandr Tymoshenko 994224fba2bSOleksandr Tymoshenko panel_node = fdt_find_compatible(root, "ti,tilcdc,panel", 1); 995224fba2bSOleksandr Tymoshenko if (panel_node != 0) { 996224fba2bSOleksandr Tymoshenko device_printf(dev, "using static panel info\n"); 997224fba2bSOleksandr Tymoshenko if (am335x_read_panel_info(dev, panel_node, &sc->sc_panel)) { 9985b03aba6SOleksandr Tymoshenko device_printf(dev, "failed to read panel info\n"); 9995b03aba6SOleksandr Tymoshenko return (ENXIO); 10005b03aba6SOleksandr Tymoshenko } 10015b03aba6SOleksandr Tymoshenko 1002224fba2bSOleksandr Tymoshenko if (am335x_read_timing(dev, panel_node, &sc->sc_panel)) { 10035b03aba6SOleksandr Tymoshenko device_printf(dev, "failed to read timings\n"); 10045b03aba6SOleksandr Tymoshenko return (ENXIO); 10055b03aba6SOleksandr Tymoshenko } 100624ca3d19SOleksandr Tymoshenko } 100724ca3d19SOleksandr Tymoshenko 10080050ea24SMichal Meloun err = ti_sysc_clock_enable(device_get_parent(dev)); 10090050ea24SMichal Meloun if (err != 0) { 10100050ea24SMichal Meloun device_printf(dev, "Failed to enable sysc clkctrl, err %d\n", err); 10110050ea24SMichal Meloun return (ENXIO); 10120050ea24SMichal Meloun } 1013224fba2bSOleksandr Tymoshenko 101424ca3d19SOleksandr Tymoshenko rid = 0; 101524ca3d19SOleksandr Tymoshenko sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 101624ca3d19SOleksandr Tymoshenko RF_ACTIVE); 101724ca3d19SOleksandr Tymoshenko if (!sc->sc_mem_res) { 101824ca3d19SOleksandr Tymoshenko device_printf(dev, "cannot allocate memory window\n"); 101924ca3d19SOleksandr Tymoshenko return (ENXIO); 102024ca3d19SOleksandr Tymoshenko } 102124ca3d19SOleksandr Tymoshenko 102224ca3d19SOleksandr Tymoshenko rid = 0; 102324ca3d19SOleksandr Tymoshenko sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 102424ca3d19SOleksandr Tymoshenko RF_ACTIVE); 102524ca3d19SOleksandr Tymoshenko if (!sc->sc_irq_res) { 102624ca3d19SOleksandr Tymoshenko bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_mem_res); 102724ca3d19SOleksandr Tymoshenko device_printf(dev, "cannot allocate interrupt\n"); 102824ca3d19SOleksandr Tymoshenko return (ENXIO); 102924ca3d19SOleksandr Tymoshenko } 103024ca3d19SOleksandr Tymoshenko 103124ca3d19SOleksandr Tymoshenko if (bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_MISC | INTR_MPSAFE, 103224ca3d19SOleksandr Tymoshenko NULL, am335x_lcd_intr, sc, 103324ca3d19SOleksandr Tymoshenko &sc->sc_intr_hl) != 0) { 103424ca3d19SOleksandr Tymoshenko bus_release_resource(dev, SYS_RES_IRQ, rid, 103524ca3d19SOleksandr Tymoshenko sc->sc_irq_res); 103624ca3d19SOleksandr Tymoshenko bus_release_resource(dev, SYS_RES_MEMORY, rid, 103724ca3d19SOleksandr Tymoshenko sc->sc_mem_res); 103824ca3d19SOleksandr Tymoshenko device_printf(dev, "Unable to setup the irq handler.\n"); 103924ca3d19SOleksandr Tymoshenko return (ENXIO); 104024ca3d19SOleksandr Tymoshenko } 104124ca3d19SOleksandr Tymoshenko 104224ca3d19SOleksandr Tymoshenko LCD_LOCK_INIT(sc); 104324ca3d19SOleksandr Tymoshenko 104424ca3d19SOleksandr Tymoshenko /* Init backlight interface */ 104524ca3d19SOleksandr Tymoshenko ctx = device_get_sysctl_ctx(sc->sc_dev); 104624ca3d19SOleksandr Tymoshenko tree = device_get_sysctl_tree(sc->sc_dev); 104724ca3d19SOleksandr Tymoshenko sc->sc_oid = SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 10487029da5cSPawel Biernacki "backlight", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0, 104924ca3d19SOleksandr Tymoshenko am335x_lcd_sysctl_backlight, "I", "LCD backlight"); 105024ca3d19SOleksandr Tymoshenko sc->sc_backlight = 0; 105124ca3d19SOleksandr Tymoshenko /* Check if eCAS interface is available at this point */ 10525b03aba6SOleksandr Tymoshenko if (am335x_pwm_config_ecap(PWM_UNIT, 105324ca3d19SOleksandr Tymoshenko PWM_PERIOD, PWM_PERIOD) == 0) 105424ca3d19SOleksandr Tymoshenko sc->sc_backlight = 100; 105524ca3d19SOleksandr Tymoshenko 10565625a3e5SOleksandr Tymoshenko if (panel_node != 0) 10575625a3e5SOleksandr Tymoshenko am335x_lcd_configure(sc); 10585625a3e5SOleksandr Tymoshenko else 1059224fba2bSOleksandr Tymoshenko sc->sc_hdmi_evh = EVENTHANDLER_REGISTER(hdmi_event, 10606f79d9e9SOleksandr Tymoshenko am335x_lcd_hdmi_event, sc, EVENTHANDLER_PRI_ANY); 106124ca3d19SOleksandr Tymoshenko 106224ca3d19SOleksandr Tymoshenko return (0); 106324ca3d19SOleksandr Tymoshenko } 106424ca3d19SOleksandr Tymoshenko 106524ca3d19SOleksandr Tymoshenko static int 106624ca3d19SOleksandr Tymoshenko am335x_lcd_detach(device_t dev) 106724ca3d19SOleksandr Tymoshenko { 106824ca3d19SOleksandr Tymoshenko /* Do not let unload driver */ 106924ca3d19SOleksandr Tymoshenko return (EBUSY); 107024ca3d19SOleksandr Tymoshenko } 107124ca3d19SOleksandr Tymoshenko 107272584f4cSOleksandr Tymoshenko static struct fb_info * 107372584f4cSOleksandr Tymoshenko am335x_lcd_fb_getinfo(device_t dev) 107472584f4cSOleksandr Tymoshenko { 107572584f4cSOleksandr Tymoshenko struct am335x_lcd_softc *sc; 107672584f4cSOleksandr Tymoshenko 107772584f4cSOleksandr Tymoshenko sc = device_get_softc(dev); 107872584f4cSOleksandr Tymoshenko 107972584f4cSOleksandr Tymoshenko return (&sc->sc_fb_info); 108072584f4cSOleksandr Tymoshenko } 108172584f4cSOleksandr Tymoshenko 108224ca3d19SOleksandr Tymoshenko static device_method_t am335x_lcd_methods[] = { 108324ca3d19SOleksandr Tymoshenko DEVMETHOD(device_probe, am335x_lcd_probe), 108424ca3d19SOleksandr Tymoshenko DEVMETHOD(device_attach, am335x_lcd_attach), 108524ca3d19SOleksandr Tymoshenko DEVMETHOD(device_detach, am335x_lcd_detach), 108624ca3d19SOleksandr Tymoshenko 108772584f4cSOleksandr Tymoshenko /* Framebuffer service methods */ 108872584f4cSOleksandr Tymoshenko DEVMETHOD(fb_getinfo, am335x_lcd_fb_getinfo), 108972584f4cSOleksandr Tymoshenko 109024ca3d19SOleksandr Tymoshenko DEVMETHOD_END 109124ca3d19SOleksandr Tymoshenko }; 109224ca3d19SOleksandr Tymoshenko 109324ca3d19SOleksandr Tymoshenko static driver_t am335x_lcd_driver = { 109472584f4cSOleksandr Tymoshenko "fb", 109524ca3d19SOleksandr Tymoshenko am335x_lcd_methods, 109624ca3d19SOleksandr Tymoshenko sizeof(struct am335x_lcd_softc), 109724ca3d19SOleksandr Tymoshenko }; 109824ca3d19SOleksandr Tymoshenko 10998537e671SJohn Baldwin DRIVER_MODULE(am335x_lcd, simplebus, am335x_lcd_driver, 0, 0); 110024ca3d19SOleksandr Tymoshenko MODULE_VERSION(am335x_lcd, 1); 110124ca3d19SOleksandr Tymoshenko MODULE_DEPEND(am335x_lcd, simplebus, 1, 1, 1); 11020050ea24SMichal Meloun MODULE_DEPEND(am335x_lcd, ti_sysc, 1, 1, 1); 1103