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commit a149e18b39c720a1e26f9eabe9ffa2e3706152b8 Author: Jerzy Kasenberg <[email protected]> AuthorDate: Thu Mar 2 12:26:57 2023 +0100 lvgl/st7735s: Add initial support for ST7735S TFT --- hw/drivers/display/lvgl/pkg.yml | 2 + hw/drivers/display/lvgl/syscfg.yml | 3 + hw/drivers/display/lvgl/tft/st7735s/pkg.yml | 25 +++ hw/drivers/display/lvgl/tft/st7735s/src/st7735s.c | 245 ++++++++++++++++++++++ hw/drivers/display/lvgl/tft/st7735s/syscfg.yml | 23 ++ 5 files changed, 298 insertions(+) diff --git a/hw/drivers/display/lvgl/pkg.yml b/hw/drivers/display/lvgl/pkg.yml index c3955ba67..ad2b72ea9 100644 --- a/hw/drivers/display/lvgl/pkg.yml +++ b/hw/drivers/display/lvgl/pkg.yml @@ -62,6 +62,8 @@ pkg.deps.LVGL_ILI9341: - "@apache-mynewt-core/hw/drivers/display/lvgl/tft/ili9341" pkg.deps.LVGL_ILI9486: - "@apache-mynewt-core/hw/drivers/display/lvgl/tft/ili9486" +pkg.deps.LVGL_ST7735S: + - "@apache-mynewt-core/hw/drivers/display/lvgl/tft/st7735s" pkg.cflags: - -DLV_CONF_INCLUDE_SIMPLE=1 diff --git a/hw/drivers/display/lvgl/syscfg.yml b/hw/drivers/display/lvgl/syscfg.yml index f55e5fb9a..b83a20d05 100644 --- a/hw/drivers/display/lvgl/syscfg.yml +++ b/hw/drivers/display/lvgl/syscfg.yml @@ -28,6 +28,9 @@ syscfg.defs: LVGL_ILI9486: description: Enable ILI9486 display driver. value: + LVGL_ST7735S: + description: Enable ST7735S display driver. + value: LVGL_TIMER_PERIOD_MS: description: LV timer interval for periodical refresh and touch read value: 10 diff --git a/hw/drivers/display/lvgl/tft/st7735s/pkg.yml b/hw/drivers/display/lvgl/tft/st7735s/pkg.yml new file mode 100644 index 000000000..1bf50aa54 --- /dev/null +++ b/hw/drivers/display/lvgl/tft/st7735s/pkg.yml @@ -0,0 +1,25 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# + +pkg.name: hw/drivers/display/lvgl/tft/st7735s +pkg.description: LVGL display driver for ST7735S +pkg.author: "Apache Mynewt <[email protected]>" +pkg.homepage: "http://mynewt.apache.org/"; +pkg.keywords: + +pkg.cflags: diff --git a/hw/drivers/display/lvgl/tft/st7735s/src/st7735s.c b/hw/drivers/display/lvgl/tft/st7735s/src/st7735s.c new file mode 100644 index 000000000..c7b79d1d9 --- /dev/null +++ b/hw/drivers/display/lvgl/tft/st7735s/src/st7735s.c @@ -0,0 +1,245 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +#include <bsp/bsp.h> +#include <hal/hal_gpio.h> +#include <lv_glue.h> +#include <hal/lv_hal_disp.h> +#include <lcd_itf.h> + +#define ST7735S_TFTWIDTH 128 +#define ST7735S_TFTHEIGHT 160 + +#define ST7735S_NOP 0x00 +#define ST7735S_SWRESET 0x01 +#define ST7735S_RDDID 0x04 +#define ST7735S_RDDST 0x09 +#define ST7735S_RDDPM 0x0A +#define ST7735S_RDDDMADCTL 0x0B +#define ST7735S_RDDCOLMOD 0x0C +#define ST7735S_RDDIM 0x0D +#define ST7735S_RDDSM 0x0E +#define ST7735S_RDDSDR 0x0F + +#define ST7735S_SLPIN 0x10 +#define ST7735S_SLPOUT 0x11 +#define ST7735S_PTLON 0x12 +#define ST7735S_NORON 0x13 + +#define ST7735S_INVOFF 0x20 +#define ST7735S_INVON 0x21 +#define ST7735S_GAMSET 0x26 +#define ST7735S_DISPOFF 0x28 +#define ST7735S_DISPON 0x29 +#define ST7735S_CASET 0x2A +#define ST7735S_RASET 0x2B +#define ST7735S_RAMWR 0x2C +#define ST7735S_RAMRD 0x2E + +#define ST7735S_PTLAR 0x30 +#define ST7735S_SCRLAR 0x33 +#define ST7735S_TEOFF 0x34 +#define ST7735S_TEON 0x35 +#define ST7735S_MADCTL 0x36 +#define ST7735S_VSCSAD 0x37 +#define ST7735S_IDMOFF 0x38 +#define ST7735S_IDMON 0x39 +#define ST7735S_COLMOD 0x3A + +#define ST7735S_FRMCTR1 0xB1 +#define ST7735S_FRMCTR2 0xB2 +#define ST7735S_FRMCTR3 0xB3 +#define ST7735S_INVCTR 0xB4 + +#define ST7735S_PWCTR1 0xC0 +#define ST7735S_PWCTR2 0xC1 +#define ST7735S_PWCTR3 0xC2 +#define ST7735S_PWCTR4 0xC3 +#define ST7735S_PWCTR5 0xC4 +#define ST7735S_VMCTR1 0xC5 +#define ST7735S_VMOFCTR 0xC7 + +#define ST7735S_WRID2 0xD1 +#define ST7735S_WRID3 0xD2 +#define ST7735S_NVCTR1 0xD9 +#define ST7735S_RDID1 0xDA +#define ST7735S_RDID2 0xDB +#define ST7735S_RDID3 0xDC +#define ST7735S_RDID4 0xDD +#define ST7735S_NVFCTR2 0xDE +#define ST7735S_NVFCTR3 0xDF + +#define ST7735S_GMCTRP1 0xE0 +#define ST7735S_GMCTRN1 0xE1 + +#define ST7735S_GCV 0xFC + +#define ST7735S_MADCTL_MY 0x80 +#define ST7735S_MADCTL_MX 0x40 +#define ST7735S_MADCTL_MV 0x20 +#define ST7735S_MADCTL_ML 0x10 +#define ST7735S_MADCTL_RGB 0x00 +#define ST7735S_MADCTL_BGR 0x08 + +#define ST7735S_HOR_RES ST7735S_TFTWIDTH +#define ST7735S_VER_RES ST7735S_TFTHEIGHT + +void +st7735s_rotate(lv_disp_rot_t rotation) +{ + uint8_t madctl[2] = {ST7735S_MADCTL, 0}; + + switch (rotation) { + case LV_DISP_ROT_270: + madctl[1] |= ST7735S_MADCTL_MV | ST7735S_MADCTL_MY | ST7735S_MADCTL_ML; + break; + case LV_DISP_ROT_180: + madctl[1] |= ST7735S_MADCTL_MX | ST7735S_MADCTL_MY; + break; + case LV_DISP_ROT_90: + madctl[1] |= ST7735S_MADCTL_MX | ST7735S_MADCTL_MV; + break; + case LV_DISP_ROT_NONE: + break; + } + lcd_ift_write_cmd(madctl, 2); +} + +LCD_SEQUENCE(init_cmds) + LCD_SEQUENCE_LCD_CS_INACTIVATE(), + LCD_SEQUENCE_LCD_DC_DATA(), +#if MYNEWT_VAL(LCD_RESET_PIN) >= 0 + LCD_SEQUENCE_LCD_RESET_ACTIVATE(), + LCD_SEQUENCE_DELAY_US(10), + LCD_SEQUENCE_LCD_RESET_INACTIVATE(), + LCD_SEQUENCE_DELAY(5), +#endif + 1, ST7735S_NOP, +#if MYNEWT_VAL(LCD_RESET_PIN) < 0 + 1, ILI9486_SWRESET, + LCD_SEQUENCE_DELAY(5), +#endif + 1, ST7735S_SLPOUT, + LCD_SEQUENCE_DELAY(5), + 4, ST7735S_FRMCTR1, 0x01, 0x2C, 0x2D, + 4, ST7735S_FRMCTR2, 0x01, 0x2C, 0x2D, + 7, ST7735S_FRMCTR2, 0x01, 0x2C, 0x2D, 0x01, 0x2C, 0x2D, + 2, ST7735S_INVCTR, 0x07, + 4, ST7735S_PWCTR1, 0xA2, 0x02, 0x84, + 2, ST7735S_PWCTR2, 0xC5, + 3, ST7735S_PWCTR3, 0x0A, 0x00, + 3, ST7735S_PWCTR4, 0x8A, 0x2A, + 3, ST7735S_PWCTR5, 0x8A, 0xEE, + 2, ST7735S_VMCTR1, 0x0E, +#if invert_colors + 1, ST7735S_INVON, +#else + 1, ST7735S_INVOFF, +#endif + 2, ST7735S_COLMOD, 0x05, + 17, ST7735S_GMCTRP1, 0x02, 0x1c, 0x07, 0x12, 0x37, 0x32, 0x29, 0x2d, + 0x29, 0x25, 0x2B, 0x39, 0x00, 0x01, 0x03, 0x10, + 17, ST7735S_GMCTRN1, 0x03, 0x1d, 0x07, 0x06, 0x2E, 0x2C, 0x29, 0x2D, + 0x2E, 0x2E, 0x37, 0x3F, 0x00, 0x00, 0x02, 0x10, + 1, ST7735S_NORON, + LCD_SEQUENCE_DELAY(10), + 2, ST7735S_MADCTL, 0, + LCD_SEQUENCE_DELAY(100), + 1, ST7735S_DISPON, +LCD_SEQUENCE_END + +/** + * Initialize the ST7735S display controller + */ +void +st7735s_init(lv_disp_drv_t *driver) +{ + lcd_command_sequence(init_cmds); +} + +static void +st7735s_drv_update(struct _lv_disp_drv_t *drv) +{ + st7735s_rotate(drv->rotated); +} + +void +st7735s_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_p) +{ + int32_t y; + lv_coord_t w; + uint8_t cmd[5]; + + if (area->x2 < 0 || area->y2 < 0 || area->x1 >= ST7735S_HOR_RES || area->y1 >= ST7735S_VER_RES) { + lv_disp_flush_ready(drv); + return; + } + + /* Truncate the area to the screen */ + int32_t act_x1 = area->x1 < 0 ? 0 : area->x1; + int32_t act_y1 = area->y1 < 0 ? 0 : area->y1; + int32_t act_x2 = area->x2 >= ST7735S_HOR_RES ? ST7735S_HOR_RES - 1 : area->x2; + int32_t act_y2 = area->y2 >= ST7735S_VER_RES ? ST7735S_VER_RES - 1 : area->y2; + + w = lv_area_get_width(area); + + /* Column address */ + cmd[0] = ST7735S_CASET; + cmd[1] = (uint8_t)(act_x1 >> 8); + cmd[2] = (uint8_t)act_x1; + cmd[3] = (uint8_t)(act_x2 >> 8); + cmd[4] = (uint8_t)act_x2; + lcd_ift_write_cmd(cmd, 5); + + /* Page address */ + cmd[0] = ST7735S_RASET; + cmd[1] = (uint8_t)(act_y1 >> 8); + cmd[2] = (uint8_t)act_y1; + cmd[3] = (uint8_t)(act_y2 >> 8); + cmd[4] = (uint8_t)act_y2; + lcd_ift_write_cmd(cmd, 5); + + cmd[0] = ST7735S_RAMWR; + lcd_ift_write_cmd(cmd, 1); + + for (y = act_y1; y <= act_y2; y++) { + lcd_itf_write_color_data(color_p, w * sizeof(*color_p)); + color_p += w; + } + + lv_disp_flush_ready(drv); +} + +void +mynewt_lv_drv_init(lv_disp_drv_t *driver) +{ + if (MYNEWT_VAL(LCD_BL_PIN) >= 0) { + hal_gpio_init_out(MYNEWT_VAL(LCD_BL_PIN), 1); + } + if (MYNEWT_VAL(LCD_RESET_PIN) >= 0) { + hal_gpio_init_out(MYNEWT_VAL(LCD_RESET_PIN), 1); + } + lcd_itf_init(); + driver->flush_cb = st7735s_flush; + driver->drv_update_cb = st7735s_drv_update; + driver->hor_res = ST7735S_TFTWIDTH; + driver->ver_res = ST7735S_TFTHEIGHT; + + st7735s_init(driver); +} diff --git a/hw/drivers/display/lvgl/tft/st7735s/syscfg.yml b/hw/drivers/display/lvgl/tft/st7735s/syscfg.yml new file mode 100644 index 000000000..c6560b0a5 --- /dev/null +++ b/hw/drivers/display/lvgl/tft/st7735s/syscfg.yml @@ -0,0 +1,23 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# + +syscfg.defs: + +syscfg.vals: + LVGL_DISPLAY_HORIZONTAL_RESOLUTION: 128 + LVGL_DISPLAY_VERTICAL_RESOLUTION: 160
