* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/module.h>
MODULE_PARM_DESC(dma, "Use DMA buffer");
#endif
-
void fbtft_dbg_hex(const struct device *dev, int groupsize,
void *buf, size_t len, const char *fmt, ...)
{
unsigned long flags;
int ret;
- if (pdata && pdata->gpios) {
- gpio = pdata->gpios;
- while (gpio->name[0]) {
- flags = FBTFT_GPIO_NO_MATCH;
- /* if driver provides match function, try it first,
- if no match use our own */
- if (par->fbtftops.request_gpios_match)
- flags = par->fbtftops.request_gpios_match(par, gpio);
- if (flags == FBTFT_GPIO_NO_MATCH)
- flags = fbtft_request_gpios_match(par, gpio);
- if (flags != FBTFT_GPIO_NO_MATCH) {
- ret = devm_gpio_request_one(par->info->device,
- gpio->gpio, flags,
- par->info->device->driver->name);
- if (ret < 0) {
- dev_err(par->info->device,
- "%s: gpio_request_one('%s'=%d) failed with %d\n",
- __func__, gpio->name,
- gpio->gpio, ret);
- return ret;
- }
- fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par,
- "%s: '%s' = GPIO%d\n",
- __func__, gpio->name, gpio->gpio);
+ if (!(pdata && pdata->gpios))
+ return 0;
+
+ gpio = pdata->gpios;
+ while (gpio->name[0]) {
+ flags = FBTFT_GPIO_NO_MATCH;
+ /* if driver provides match function, try it first,
+ if no match use our own */
+ if (par->fbtftops.request_gpios_match)
+ flags = par->fbtftops.request_gpios_match(par, gpio);
+ if (flags == FBTFT_GPIO_NO_MATCH)
+ flags = fbtft_request_gpios_match(par, gpio);
+ if (flags != FBTFT_GPIO_NO_MATCH) {
+ ret = devm_gpio_request_one(par->info->device,
+ gpio->gpio, flags,
+ par->info->device->driver->name);
+ if (ret < 0) {
+ dev_err(par->info->device,
+ "%s: gpio_request_one('%s'=%d) failed with %d\n",
+ __func__, gpio->name,
+ gpio->gpio, ret);
+ return ret;
}
- gpio++;
+ fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par,
+ "%s: '%s' = GPIO%d\n",
+ __func__, gpio->name, gpio->gpio);
}
+ gpio++;
}
return 0;
void fbtft_unregister_backlight(struct fbtft_par *par)
{
- const struct backlight_ops *bl_ops;
-
- fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s()\n", __func__);
-
if (par->info->bl_dev) {
par->info->bl_dev->props.power = FB_BLANK_POWERDOWN;
backlight_update_status(par->info->bl_dev);
- bl_ops = par->info->bl_dev->ops;
backlight_device_unregister(par->info->bl_dev);
par->info->bl_dev = NULL;
}
}
+static const struct backlight_ops fbtft_bl_ops = {
+ .get_brightness = fbtft_backlight_get_brightness,
+ .update_status = fbtft_backlight_update_status,
+};
+
void fbtft_register_backlight(struct fbtft_par *par)
{
struct backlight_device *bd;
struct backlight_properties bl_props = { 0, };
- struct backlight_ops *bl_ops;
-
- fbtft_par_dbg(DEBUG_BACKLIGHT, par, "%s()\n", __func__);
if (par->gpio.led[0] == -1) {
fbtft_par_dbg(DEBUG_BACKLIGHT, par,
return;
}
- bl_ops = devm_kzalloc(par->info->device, sizeof(struct backlight_ops),
- GFP_KERNEL);
- if (!bl_ops)
- return;
-
- bl_ops->get_brightness = fbtft_backlight_get_brightness;
- bl_ops->update_status = fbtft_backlight_update_status;
bl_props.type = BACKLIGHT_RAW;
/* Assume backlight is off, get polarity from current state of pin */
bl_props.power = FB_BLANK_POWERDOWN;
bl_props.state |= BL_CORE_DRIVER1;
bd = backlight_device_register(dev_driver_string(par->info->device),
- par->info->device, par, bl_ops, &bl_props);
+ par->info->device, par, &fbtft_bl_ops, &bl_props);
if (IS_ERR(bd)) {
dev_err(par->info->device,
"cannot register backlight device (%ld)\n",
static void fbtft_set_addr_win(struct fbtft_par *par, int xs, int ys, int xe,
int ye)
{
- fbtft_par_dbg(DEBUG_SET_ADDR_WIN, par,
- "%s(xs=%d, ys=%d, xe=%d, ye=%d)\n", __func__, xs, ys, xe, ye);
-
/* Column address set */
write_reg(par, 0x2A,
(xs >> 8) & 0xFF, xs & 0xFF, (xe >> 8) & 0xFF, xe & 0xFF);
write_reg(par, 0x2C);
}
-
static void fbtft_reset(struct fbtft_par *par)
{
if (par->gpio.reset == -1)
mdelay(120);
}
-
static void fbtft_update_display(struct fbtft_par *par, unsigned start_line,
unsigned end_line)
{
size_t offset, len;
- struct timespec ts_start, ts_end, ts_fps, ts_duration;
- long fps_ms, fps_us, duration_ms, duration_us;
+ ktime_t ts_start, ts_end;
long fps, throughput;
bool timeit = false;
int ret = 0;
if (unlikely(par->debug & (DEBUG_TIME_FIRST_UPDATE | DEBUG_TIME_EACH_UPDATE))) {
if ((par->debug & DEBUG_TIME_EACH_UPDATE) ||
((par->debug & DEBUG_TIME_FIRST_UPDATE) && !par->first_update_done)) {
- getnstimeofday(&ts_start);
+ ts_start = ktime_get();
timeit = true;
}
}
if (par->fbtftops.set_addr_win)
par->fbtftops.set_addr_win(par, 0, start_line,
- par->info->var.xres-1, end_line);
+ par->info->var.xres - 1, end_line);
offset = start_line * par->info->fix.line_length;
len = (end_line - start_line + 1) * par->info->fix.line_length;
__func__);
if (unlikely(timeit)) {
- getnstimeofday(&ts_end);
- if (par->update_time.tv_nsec == 0 && par->update_time.tv_sec == 0) {
- par->update_time.tv_sec = ts_start.tv_sec;
- par->update_time.tv_nsec = ts_start.tv_nsec;
- }
- ts_fps = timespec_sub(ts_start, par->update_time);
- par->update_time.tv_sec = ts_start.tv_sec;
- par->update_time.tv_nsec = ts_start.tv_nsec;
- fps_ms = (ts_fps.tv_sec * 1000) + ((ts_fps.tv_nsec / 1000000) % 1000);
- fps_us = (ts_fps.tv_nsec / 1000) % 1000;
- fps = fps_ms * 1000 + fps_us;
+ ts_end = ktime_get();
+ if (ktime_to_ns(par->update_time))
+ par->update_time = ts_start;
+
+ par->update_time = ts_start;
+ fps = ktime_us_delta(ts_start, par->update_time);
fps = fps ? 1000000 / fps : 0;
- ts_duration = timespec_sub(ts_end, ts_start);
- duration_ms = (ts_duration.tv_sec * 1000) + ((ts_duration.tv_nsec / 1000000) % 1000);
- duration_us = (ts_duration.tv_nsec / 1000) % 1000;
- throughput = duration_ms * 1000 + duration_us;
+ throughput = ktime_us_delta(ts_end, ts_start);
throughput = throughput ? (len * 1000) / throughput : 0;
throughput = throughput * 1000 / 1024;
dev_info(par->info->device,
- "Display update: %ld kB/s (%ld.%.3ld ms), fps=%ld (%ld.%.3ld ms)\n",
- throughput, duration_ms, duration_us,
- fps, fps_ms, fps_us);
+ "Display update: %ld kB/s, fps=%ld\n",
+ throughput, fps);
par->first_update_done = true;
}
}
-
static void fbtft_mkdirty(struct fb_info *info, int y, int height)
{
struct fbtft_par *par = info->par;
dirty_lines_start, dirty_lines_end);
}
-
static void fbtft_fb_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
info->fix.xpanstep = 0;
info->fix.ypanstep = 0;
info->fix.ywrapstep = 0;
- info->fix.line_length = width*bpp/8;
+ info->fix.line_length = width * bpp / 8;
info->fix.accel = FB_ACCEL_NONE;
info->fix.smem_len = vmem_size;
par->txbuf.len >> 10, par->txbuf.dma ? "DMA " : "");
if (spi)
sprintf(text2, ", spi%d.%d at %d MHz", spi->master->bus_num,
- spi->chip_select, spi->max_speed_hz/1000000);
+ spi->chip_select, spi->max_speed_hz / 1000000);
dev_info(fb_info->dev,
"%s frame buffer, %dx%d, %d KiB video memory%s, fps=%lu%s\n",
fb_info->fix.id, fb_info->var.xres, fb_info->var.yres,
fb_info->fix.smem_len >> 10, text1,
- HZ/fb_info->fbdefio->delay, text2);
+ HZ / fb_info->fbdefio->delay, text2);
#ifdef CONFIG_FB_BACKLIGHT
/* Turn on backlight if available */
u32 val;
int buf[64], i, j;
- fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
if (!node)
return -EINVAL;
int i = 0;
int j;
- fbtft_par_dbg(DEBUG_INIT_DISPLAY, par, "%s()\n", __func__);
-
/* sanity check */
if (!par->init_sequence) {
dev_err(par->info->device,
"missing delimiter at position %d\n", i);
return -EINVAL;
}
- if (par->init_sequence[i+1] < 0) {
+ if (par->init_sequence[i + 1] < 0) {
dev_err(par->info->device,
"missing value after delimiter %d at position %d\n",
par->init_sequence[i], i);
/* 9-bit SPI setup */
if (par->spi && display->buswidth == 9) {
- par->spi->bits_per_word = 9;
- ret = par->spi->master->setup(par->spi);
- if (ret) {
+ if (par->spi->master->bits_per_word_mask & SPI_BPW_MASK(9)) {
+ par->spi->bits_per_word = 9;
+ } else {
dev_warn(&par->spi->dev,
"9-bit SPI not available, emulating using 8-bit.\n");
- par->spi->bits_per_word = 8;
- ret = par->spi->master->setup(par->spi);
- if (ret)
- goto out_release;
/* allocate buffer with room for dc bits */
par->extra = devm_kzalloc(par->info->device,
par->txbuf.len + (par->txbuf.len / 8) + 8,
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