static struct device_t * led_pwm_bl_probe(struct driver_t * drv, struct dtnode_t * n) { struct led_pwm_bl_pdata_t * pdat; struct pwm_t * pwm; struct led_t * led; struct device_t * dev; if(!(pwm = search_pwm(dt_read_string(n, "pwm-name", NULL)))) return NULL; pdat = malloc(sizeof(struct led_pwm_bl_pdata_t)); if(!pdat) return NULL; led = malloc(sizeof(struct led_t)); if(!led) { free(pdat); return NULL; } pdat->pwm = pwm; pdat->regulator = strdup(dt_read_string(n, "regulator-name", NULL)); pdat->period = dt_read_int(n, "pwm-period-ns", 1000 * 1000); pdat->polarity = dt_read_bool(n, "pwm-polarity", 0); pdat->from = dt_read_int(n, "pwm-percent-from", 0) * pdat->period / 100; pdat->to = dt_read_int(n, "pwm-percent-to", 100) * pdat->period / 100; pdat->brightness = dt_read_int(n, "default-brightness", 0); led->name = alloc_device_name(dt_read_name(n), dt_read_id(n)); led->set = led_pwm_bl_set, led->get = led_pwm_bl_get, led->priv = pdat; if(pdat->brightness > 0) regulator_enable(pdat->regulator); else regulator_disable(pdat->regulator); led_pwm_bl_set_brightness(pdat, pdat->brightness); if(!register_led(&dev, led)) { regulator_disable(pdat->regulator); led_pwm_bl_set_brightness(pdat, 0); if(pdat->regulator) free(pdat->regulator); free_device_name(led->name); free(led->priv); free(led); return NULL; } dev->driver = drv; return dev; }
static struct device_t * buzzer_pwm_probe(struct driver_t * drv, struct dtnode_t * n) { struct buzzer_pwm_pdata_t * pdat; struct pwm_t * pwm; struct buzzer_t * buzzer; struct device_t * dev; if(!(pwm = search_pwm(dt_read_string(n, "pwm-name", NULL)))) return NULL; pdat = malloc(sizeof(struct buzzer_pwm_pdata_t)); if(!pdat) return NULL; buzzer = malloc(sizeof(struct buzzer_t)); if(!buzzer) { free(pdat); return NULL; } timer_init(&pdat->timer, buzzer_pwm_timer_function, buzzer); pdat->queue = queue_alloc(); pdat->pwm = pwm; pdat->polarity = dt_read_bool(n, "pwm-polarity", 0); pdat->frequency = -1; buzzer->name = alloc_device_name(dt_read_name(n), dt_read_id(n)); buzzer->set = buzzer_pwm_set; buzzer->get = buzzer_pwm_get; buzzer->beep = buzzer_pwm_beep; buzzer->priv = pdat; buzzer_pwm_set(buzzer, 0); if(!register_buzzer(&dev, buzzer)) { timer_cancel(&pdat->timer); queue_free(pdat->queue, iter_queue_node); free_device_name(buzzer->name); free(buzzer->priv); free(buzzer); return NULL; } dev->driver = drv; return dev; }
static struct device_t * servo_pwm_probe(struct driver_t * drv, struct dtnode_t * n) { struct servo_pwm_pdata_t * pdat; struct pwm_t * pwm; struct servo_t * m; struct device_t * dev; if(!(pwm = search_pwm(dt_read_string(n, "pwm-name", NULL)))) return NULL; pdat = malloc(sizeof(struct servo_pwm_pdata_t)); if(!pdat) return NULL; m = malloc(sizeof(struct servo_t)); if(!m) { free(pdat); return NULL; } pdat->pwm = pwm; pdat->period = dt_read_int(n, "pwm-period-ns", 20000 * 1000); pdat->polarity = dt_read_bool(n, "pwm-polarity", 0); pdat->from = dt_read_int(n, "pwm-duty-ns-from", 500 * 1000); pdat->to = dt_read_int(n, "pwm-duty-ns-to", 2500 * 1000); pdat->range = dt_read_int(n, "rotation-angle-range", 180); pdat->angle = -360; m->name = alloc_device_name(dt_read_name(n), dt_read_id(n)); m->enable = servo_pwm_enable; m->disable = servo_pwm_disable; m->set = servo_pwm_set; m->priv = pdat; servo_pwm_set(m, dt_read_int(n, "default-angle", 0)); if(!register_servo(&dev, m)) { free_device_name(m->name); free(m->priv); free(m); return NULL; } dev->driver = drv; return dev; }
static struct device_t * clk_mux_probe(struct driver_t * drv, struct dtnode_t * n) { struct clk_mux_pdata_t * pdat; struct clk_mux_parent_t * parent; struct clk_t * clk; struct device_t * dev; struct dtnode_t o; virtual_addr_t virt = phys_to_virt(dt_read_address(n)); char * name = dt_read_string(n, "name", NULL); int nparent = dt_read_array_length(n, "parent"); int shift = dt_read_int(n, "shift", -1); int width = dt_read_int(n, "width", -1); int i; if(!name || (nparent <= 0) || (shift < 0) || (width <= 0)) return NULL; if(search_clk(name)) return NULL; pdat = malloc(sizeof(struct clk_mux_pdata_t)); if(!pdat) return NULL; parent = malloc(sizeof(struct clk_mux_parent_t) * nparent); if(!parent) { free(pdat); return NULL; } clk = malloc(sizeof(struct clk_t)); if(!clk) { free(pdat); free(parent); return NULL; } for(i = 0; i < nparent; i++) { dt_read_array_object(n, "parent", i, &o); parent[i].name = strdup(dt_read_string(&o, "name", NULL)); parent[i].value = dt_read_int(&o, "value", 0); } pdat->virt = virt; pdat->parent = parent; pdat->nparent = nparent; pdat->shift = shift; pdat->width = width; clk->name = strdup(name); clk->count = 0; clk->set_parent = clk_mux_set_parent; clk->get_parent = clk_mux_get_parent; clk->set_enable = clk_mux_set_enable; clk->get_enable = clk_mux_get_enable; clk->set_rate = clk_mux_set_rate; clk->get_rate = clk_mux_get_rate; clk->priv = pdat; if(!register_clk(&dev, clk)) { for(i = 0; i < pdat->nparent; i++) free(pdat->parent[i].name); free(pdat->parent); free(clk->name); free(clk->priv); free(clk); return NULL; } dev->driver = drv; if(dt_read_object(n, "default", &o)) { char * c = clk->name; char * p; u64_t r; int e; if((p = dt_read_string(&o, "parent", NULL)) && search_clk(p)) clk_set_parent(c, p); if((r = (u64_t)dt_read_long(&o, "rate", 0)) > 0) clk_set_rate(c, r); if((e = dt_read_bool(&o, "enable", -1)) != -1) { if(e > 0) clk_enable(c); else clk_disable(c); } } return dev; }
static struct device_t * i2c_gpio_probe(struct driver_t * drv, struct dtnode_t * n) { struct i2c_gpio_pdata_t * pdat; struct i2c_t * i2c; struct device_t * dev; int sda = dt_read_int(n, "sda-gpio", -1); int scl = dt_read_int(n, "scl-gpio", -1); if(!gpio_is_valid(sda) || !gpio_is_valid(scl)) return NULL; pdat = malloc(sizeof(struct i2c_gpio_pdata_t)); if(!pdat) return FALSE; i2c = malloc(sizeof(struct i2c_t)); if(!i2c) { free(pdat); return FALSE; } pdat->sda = sda; pdat->scl = scl; pdat->sda_open_drain = dt_read_bool(n, "sda-open-drain", 0); pdat->scl_open_drain = dt_read_bool(n, "scl-open-drain", 0); pdat->scl_output_only = dt_read_bool(n, "sda-output-only", 0); pdat->udelay = dt_read_int(n, "delay-us", 5); pdat->bdat.priv = pdat; if(pdat->sda_open_drain) { gpio_direction_output(pdat->sda, 1); pdat->bdat.setsda = i2c_gpio_setsda_val; } else { gpio_direction_input(pdat->sda); pdat->bdat.setsda = i2c_gpio_setsda_dir; } if(pdat->scl_open_drain || pdat->scl_output_only) { gpio_direction_output(pdat->scl, 1); pdat->bdat.setscl = i2c_gpio_setscl_val; } else { gpio_direction_input(pdat->scl); pdat->bdat.setscl = i2c_gpio_setscl_dir; } pdat->bdat.getsda = i2c_gpio_getsda; if(pdat->scl_output_only) pdat->bdat.getscl = 0; else pdat->bdat.getscl = i2c_gpio_getscl; if(pdat->udelay > 0) pdat->bdat.udelay = pdat->udelay; else if(pdat->scl_output_only) pdat->bdat.udelay = 50; else pdat->bdat.udelay = 5; i2c->name = alloc_device_name(dt_read_name(n), dt_read_id(n)); i2c->xfer = i2c_gpio_xfer, i2c->priv = pdat; if(!register_i2c(&dev, i2c)) { free_device_name(i2c->name); free(i2c->priv); free(i2c); return NULL; } dev->driver = drv; return dev; }
static struct device_t * clk_rk3128_gate_probe(struct driver_t * drv, struct dtnode_t * n) { struct clk_rk3128_gate_pdata_t * pdat; struct clk_t * clk; struct device_t * dev; struct dtnode_t o; virtual_addr_t virt = phys_to_virt(dt_read_address(n)); char * parent = dt_read_string(n, "parent", NULL); char * name = dt_read_string(n, "name", NULL); int shift = dt_read_int(n, "shift", -1); if(!parent || !name || (shift < 0)) return NULL; if(!search_clk(parent) || search_clk(name)) return NULL; pdat = malloc(sizeof(struct clk_rk3128_gate_pdata_t)); if(!pdat) return NULL; clk = malloc(sizeof(struct clk_t)); if(!clk) { free(pdat); return NULL; } pdat->virt = virt; pdat->parent = strdup(parent); pdat->shift = shift; pdat->invert = dt_read_bool(n, "invert", 0); clk->name = strdup(name); clk->count = 0; clk->set_parent = clk_rk3128_gate_set_parent; clk->get_parent = clk_rk3128_gate_get_parent; clk->set_enable = clk_rk3128_gate_set_enable; clk->get_enable = clk_rk3128_gate_get_enable; clk->set_rate = clk_rk3128_gate_set_rate; clk->get_rate = clk_rk3128_gate_get_rate; clk->priv = pdat; if(!register_clk(&dev, clk)) { free(pdat->parent); free(clk->name); free(clk->priv); free(clk); return NULL; } dev->driver = drv; if(dt_read_object(n, "default", &o)) { char * c = clk->name; char * p; u64_t r; int e; if((p = dt_read_string(&o, "parent", NULL)) && search_clk(p)) clk_set_parent(c, p); if((r = (u64_t)dt_read_long(&o, "rate", 0)) > 0) clk_set_rate(c, r); if((e = dt_read_bool(&o, "enable", -1)) != -1) { if(e > 0) clk_enable(c); else clk_disable(c); } } return dev; }
static struct device_t * fb_f1c500s_probe(struct driver_t * drv, struct dtnode_t * n) { struct fb_f1c500s_pdata_t * pdat; struct framebuffer_t * fb; struct device_t * dev; char * clkdefe = dt_read_string(n, "clock-name-defe", NULL); char * clkdebe = dt_read_string(n, "clock-name-debe", NULL); char * clktcon = dt_read_string(n, "clock-name-tcon", NULL); int i; if(!search_clk(clkdefe) || !search_clk(clkdebe) || !search_clk(clktcon)) return NULL; pdat = malloc(sizeof(struct fb_f1c500s_pdata_t)); if(!pdat) return NULL; fb = malloc(sizeof(struct framebuffer_t)); if(!fb) { free(pdat); return NULL; } pdat->virtdefe = phys_to_virt(F1C500S_DEFE_BASE); pdat->virtdebe = phys_to_virt(F1C500S_DEBE_BASE); pdat->virttcon = phys_to_virt(F1C500S_TCON_BASE); pdat->virtgpio = phys_to_virt(F1C500S_GPIO_BASE); pdat->clkdefe = strdup(clkdefe); pdat->clkdebe = strdup(clkdebe); pdat->clktcon = strdup(clktcon); pdat->rstdefe = dt_read_int(n, "reset-defe", -1); pdat->rstdebe = dt_read_int(n, "reset-debe", -1); pdat->rsttcon = dt_read_int(n, "reset-tcon", -1); pdat->width = dt_read_int(n, "width", 320); pdat->height = dt_read_int(n, "height", 240); pdat->pwidth = dt_read_int(n, "physical-width", 216); pdat->pheight = dt_read_int(n, "physical-height", 135); pdat->bits_per_pixel = dt_read_int(n, "bits-per-pixel", 18); pdat->bytes_per_pixel = dt_read_int(n, "bytes-per-pixel", 4); pdat->index = 0; pdat->vram[0] = dma_alloc_noncoherent(pdat->width * pdat->height * pdat->bytes_per_pixel); pdat->vram[1] = dma_alloc_noncoherent(pdat->width * pdat->height * pdat->bytes_per_pixel); pdat->nrl = region_list_alloc(0); pdat->orl = region_list_alloc(0); pdat->timing.pixel_clock_hz = dt_read_long(n, "clock-frequency", 8000000); pdat->timing.h_front_porch = dt_read_int(n, "hfront-porch", 40); pdat->timing.h_back_porch = dt_read_int(n, "hback-porch", 87); pdat->timing.h_sync_len = dt_read_int(n, "hsync-len", 1); pdat->timing.v_front_porch = dt_read_int(n, "vfront-porch", 13); pdat->timing.v_back_porch = dt_read_int(n, "vback-porch", 31); pdat->timing.v_sync_len = dt_read_int(n, "vsync-len", 1); pdat->timing.h_sync_active = dt_read_bool(n, "hsync-active", 0); pdat->timing.v_sync_active = dt_read_bool(n, "vsync-active", 0); pdat->timing.den_active = dt_read_bool(n, "den-active", 0); pdat->timing.clk_active = dt_read_bool(n, "clk-active", 0); pdat->backlight = search_led(dt_read_string(n, "backlight", NULL)); fb->name = alloc_device_name(dt_read_name(n), dt_read_id(n)); fb->width = pdat->width; fb->height = pdat->height; fb->pwidth = pdat->pwidth; fb->pheight = pdat->pheight; fb->bytes = pdat->bytes_per_pixel; fb->setbl = fb_setbl; fb->getbl = fb_getbl; fb->create = fb_create; fb->destroy = fb_destroy; fb->present = fb_present; fb->priv = pdat; clk_enable(pdat->clkdefe); clk_enable(pdat->clkdebe); clk_enable(pdat->clktcon); if(pdat->rstdefe >= 0) reset_deassert(pdat->rstdefe); if(pdat->rstdebe >= 0) reset_deassert(pdat->rstdebe); if(pdat->rsttcon >= 0) reset_deassert(pdat->rsttcon); for(i = 0x0800; i < 0x1000; i += 4) write32(pdat->virtdebe + i, 0); fb_f1c500s_init(pdat); if(!register_framebuffer(&dev, fb)) { clk_disable(pdat->clkdefe); clk_disable(pdat->clkdebe); clk_disable(pdat->clktcon); free(pdat->clkdefe); free(pdat->clkdebe); free(pdat->clktcon); dma_free_noncoherent(pdat->vram[0]); dma_free_noncoherent(pdat->vram[1]); region_list_free(pdat->nrl); region_list_free(pdat->orl); free_device_name(fb->name); free(fb->priv); free(fb); return NULL; } dev->driver = drv; return dev; }
static struct device_t * rotary_encoder_probe(struct driver_t * drv, struct dtnode_t * n) { struct rotary_encoder_pdata_t * pdat; struct input_t * input; struct device_t * dev; int a = dt_read_int(n, "a-gpio", -1); int b = dt_read_int(n, "b-gpio", -1); if(!gpio_is_valid(a) || !gpio_is_valid(b) || !irq_is_valid(gpio_to_irq(a)) || !irq_is_valid(gpio_to_irq(b))) return NULL; pdat = malloc(sizeof(struct rotary_encoder_pdata_t)); if(!pdat) return NULL; input = malloc(sizeof(struct input_t)); if(!input) { free(pdat); return NULL; } pdat->a = a; pdat->acfg = dt_read_int(n, "a-gpio-config", -1); pdat->b = b; pdat->bcfg = dt_read_int(n, "b-gpio-config", -1); pdat->c = dt_read_int(n, "c-gpio", -1); pdat->ccfg = dt_read_int(n, "c-gpio-config", -1); pdat->irqa = gpio_to_irq(pdat->a); pdat->irqb = gpio_to_irq(pdat->b); pdat->irqc = gpio_to_irq(pdat->c); pdat->inva = dt_read_bool(n, "a-inverted", 0); pdat->invb = dt_read_bool(n, "b-inverted", 0); pdat->invc = dt_read_bool(n, "c-inverted", 0); input->name = alloc_device_name(dt_read_name(n), dt_read_id(n)); input->ioctl = rotary_encoder_ioctl; input->priv = pdat; if(pdat->acfg >= 0) gpio_set_cfg(pdat->a, pdat->acfg); gpio_set_pull(pdat->a, pdat->inva ? GPIO_PULL_DOWN : GPIO_PULL_UP); gpio_direction_input(pdat->a); if(pdat->bcfg >= 0) gpio_set_cfg(pdat->b, pdat->bcfg); gpio_set_pull(pdat->b, pdat->invb ? GPIO_PULL_DOWN : GPIO_PULL_UP); gpio_direction_input(pdat->b); switch(dt_read_int(n, "step-per-period", 1)) { case 4: request_irq(pdat->irqa, rotary_encoder_quarter_period_irq, IRQ_TYPE_EDGE_BOTH, input); request_irq(pdat->irqb, rotary_encoder_quarter_period_irq, IRQ_TYPE_EDGE_BOTH, input); pdat->state = rotary_encoder_get_state(pdat); break; case 2: request_irq(pdat->irqa, rotary_encoder_half_period_irq, IRQ_TYPE_EDGE_BOTH, input); request_irq(pdat->irqb, rotary_encoder_half_period_irq, IRQ_TYPE_EDGE_BOTH, input); pdat->state = rotary_encoder_get_state(pdat); break; case 1: request_irq(pdat->irqa, rotary_encoder_irq, IRQ_TYPE_EDGE_BOTH, input); request_irq(pdat->irqb, rotary_encoder_irq, IRQ_TYPE_EDGE_BOTH, input); pdat->state = 0; break; default: request_irq(pdat->irqa, rotary_encoder_irq, IRQ_TYPE_EDGE_BOTH, input); request_irq(pdat->irqb, rotary_encoder_irq, IRQ_TYPE_EDGE_BOTH, input); pdat->state = 0; break; } if(gpio_is_valid(pdat->c) && irq_is_valid(pdat->irqc)) { if(pdat->ccfg >= 0) gpio_set_cfg(pdat->c, pdat->ccfg); gpio_set_pull(pdat->c, pdat->invc ? GPIO_PULL_DOWN : GPIO_PULL_UP); gpio_direction_input(pdat->c); request_irq(pdat->irqc, rotary_encoder_c_irq, IRQ_TYPE_EDGE_BOTH, input); } if(!register_input(&dev, input)) { free_irq(pdat->irqa); free_irq(pdat->irqb); if(gpio_is_valid(pdat->c) && irq_is_valid(pdat->irqc)) free_irq(pdat->irqc); free_device_name(input->name); free(input->priv); free(input); return NULL; } dev->driver = drv; return dev; }
static struct device_t * fb_rk3288_probe(struct driver_t * drv, struct dtnode_t * n) { struct fb_rk3288_pdata_t * pdat; struct fb_t * fb; struct device_t * dev; virtual_addr_t virt = phys_to_virt(dt_read_address(n)); char * clk = dt_read_string(n, "clock-name", NULL); if(!search_clk(clk)) return NULL; pdat = malloc(sizeof(struct fb_rk3288_pdata_t)); if(!pdat) return NULL; fb = malloc(sizeof(struct fb_t)); if(!fb) { free(pdat); return NULL; } pdat->virtvop = virt; pdat->virtgrf = phys_to_virt(RK3288_GRF_BASE); pdat->virtlvds = phys_to_virt(RK3288_LVDS_BASE); pdat->lcd_avdd_3v3 = strdup(dt_read_string(n, "regulator-lcd-avdd-3v3", NULL)); pdat->lcd_avdd_1v8 = strdup(dt_read_string(n, "regulator-lcd-avdd-1v8", NULL)); pdat->lcd_avdd_1v0 = strdup(dt_read_string(n, "regulator-lcd-avdd-1v0", NULL)); pdat->clk = strdup(clk); pdat->width = dt_read_int(n, "width", 1024); pdat->height = dt_read_int(n, "height", 600); pdat->xdpi = dt_read_int(n, "dots-per-inch-x", 160); pdat->ydpi = dt_read_int(n, "dots-per-inch-y", 160); pdat->bits_per_pixel = dt_read_int(n, "bits-per-pixel", 32); pdat->bytes_per_pixel = dt_read_int(n, "bytes-per-pixel", 4); pdat->index = 0; pdat->vram[0] = dma_alloc_noncoherent(pdat->width * pdat->height * pdat->bytes_per_pixel); pdat->vram[1] = dma_alloc_noncoherent(pdat->width * pdat->height * pdat->bytes_per_pixel); pdat->interface = RK3288_VOP_INTERFACE_RGB_LVDS; pdat->output = RK3288_LVDS_OUTPUT_RGB; pdat->format = RK3288_LVDS_FORMAT_JEIDA; pdat->mode.mirrorx = 0; pdat->mode.mirrory = 0; pdat->mode.swaprg = 0; pdat->mode.swaprb = 0; pdat->mode.swapbg = 0; pdat->timing.pixel_clock_hz = dt_read_long(n, "clock-frequency", 52000000); pdat->timing.h_front_porch = dt_read_int(n, "hfront-porch", 1); pdat->timing.h_back_porch = dt_read_int(n, "hback-porch", 1); pdat->timing.h_sync_len = dt_read_int(n, "hsync-len", 1); pdat->timing.v_front_porch = dt_read_int(n, "vfront-porch", 1); pdat->timing.v_back_porch = dt_read_int(n, "vback-porch", 1); pdat->timing.v_sync_len = dt_read_int(n, "vsync-len", 1); pdat->timing.h_sync_active = dt_read_bool(n, "hsync-active", 0); pdat->timing.v_sync_active = dt_read_bool(n, "vsync-active", 0); pdat->timing.den_active = dt_read_bool(n, "den-active", 0); pdat->timing.clk_active = dt_read_bool(n, "clk-active", 0); pdat->backlight = search_led(dt_read_string(n, "backlight", NULL)); fb->name = alloc_device_name(dt_read_name(n), -1); fb->width = pdat->width; fb->height = pdat->height; fb->xdpi = pdat->xdpi; fb->ydpi = pdat->ydpi; fb->bpp = pdat->bits_per_pixel; fb->setbl = fb_setbl, fb->getbl = fb_getbl, fb->create = fb_create, fb->destroy = fb_destroy, fb->present = fb_present, fb->priv = pdat; regulator_set_voltage(pdat->lcd_avdd_3v3, 3300000); regulator_enable(pdat->lcd_avdd_3v3); regulator_set_voltage(pdat->lcd_avdd_1v8, 1800000); regulator_enable(pdat->lcd_avdd_1v8); regulator_set_voltage(pdat->lcd_avdd_1v0, 1000000); regulator_enable(pdat->lcd_avdd_1v0); clk_enable(pdat->clk); rk3288_fb_init(pdat); if(!register_fb(&dev, fb)) { regulator_disable(pdat->lcd_avdd_3v3); free(pdat->lcd_avdd_3v3); regulator_disable(pdat->lcd_avdd_1v8); free(pdat->lcd_avdd_1v8); regulator_disable(pdat->lcd_avdd_1v0); free(pdat->lcd_avdd_1v0); clk_disable(pdat->clk); free(pdat->clk); dma_free_noncoherent(pdat->vram[0]); dma_free_noncoherent(pdat->vram[1]); free_device_name(fb->name); free(fb->priv); free(fb); return NULL; } dev->driver = drv; return dev; }