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[U-Boot,3/3] cmd: Add osd commands

Message ID 20180328123957.17087-3-mario.six@gdsys.cc
State Changes Requested
Delegated to: Anatolij Gustschin
Headers show
Series [U-Boot,1/3] drivers: Add OSD uclass | expand

Commit Message

Mario Six March 28, 2018, 12:39 p.m. UTC
Add command to query information from and write text to IHS OSDs.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
---
 cmd/Kconfig  |  16 +++
 cmd/Makefile |   1 +
 cmd/osd.c    | 366 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 383 insertions(+)
 create mode 100644 cmd/osd.c

--
2.16.1

Comments

Simon Glass March 29, 2018, 10:42 p.m. UTC | #1
Hi Mario,

On 28 March 2018 at 20:39, Mario Six <mario.six@gdsys.cc> wrote:
> Add command to query information from and write text to IHS OSDs.
>
> Signed-off-by: Mario Six <mario.six@gdsys.cc>
> ---
>  cmd/Kconfig  |  16 +++
>  cmd/Makefile |   1 +
>  cmd/osd.c    | 366 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 383 insertions(+)
>  create mode 100644 cmd/osd.c
>
> diff --git a/cmd/Kconfig b/cmd/Kconfig
> index 136836d146..0d60051960 100644
> --- a/cmd/Kconfig
> +++ b/cmd/Kconfig
> @@ -846,6 +846,22 @@ config CMD_ONENAND
>           and erasing blocks. It allso provides a way to show and change
>           bad blocks, and test the device.
>
> +config CMD_OSD
> +       bool "osd"
> +       help
> +         Enable the 'osd' command which allows to query information from and
> +         write text data to a OSD.

Please expand help. E.g. what is an OSD?

> +
> +if CMD_OSD
> +
> +config GDSYS_LEGACY_OSD_CMDS
> +       bool "Use legacy gdsys-specific commands"
> +       help
> +         Use the 'osdw', 'osdp', and 'osdsize' legacy commands required by
> +         gdsys devices.
> +
> +endif
> +
>  config CMD_PART
>         bool "part"
>         select PARTITION_UUIDS
> diff --git a/cmd/Makefile b/cmd/Makefile
> index 9a358e4801..d3f7522700 100644
> --- a/cmd/Makefile
> +++ b/cmd/Makefile
> @@ -61,6 +61,7 @@ obj-$(CONFIG_CMD_FS_GENERIC) += fs.o
>  obj-$(CONFIG_CMD_FUSE) += fuse.o
>  obj-$(CONFIG_CMD_GETTIME) += gettime.o
>  obj-$(CONFIG_CMD_GPIO) += gpio.o
> +obj-$(CONFIG_CMD_OSD) += osd.o
>  obj-$(CONFIG_CMD_I2C) += i2c.o
>  obj-$(CONFIG_CMD_IOTRACE) += iotrace.o
>  obj-$(CONFIG_CMD_HASH) += hash.o
> diff --git a/cmd/osd.c b/cmd/osd.c
> new file mode 100644
> index 0000000000..bbabfc3c54
> --- /dev/null
> +++ b/cmd/osd.c
> @@ -0,0 +1,366 @@
> +/*
> + * (C) Copyright 2017
> + * Mario Six,  Guntermann & Drunck GmbH, mario.six@gdsys.cc
> + *
> + * based on the gdsys osd driver, which is
> + *
> + * (C) Copyright 2010
> + * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
> + *
> + * SPDX-License-Identifier:    GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <video_osd.h>
> +#include <malloc.h>
> +
> +#ifndef CONFIG_GDSYS_LEGACY_OSD_CMDS
> +static struct udevice *osd_cur;
> +#endif
> +
> +void hexstr_to_u8_array(char *hexstr, u8 *array, size_t arrsize)
> +{
> +       size_t pos;
> +
> +       for (pos = 0; pos < arrsize; ++pos) {
> +               char substr[3];
> +
> +               memcpy(substr, hexstr, 2);
> +               substr[2] = 0;
> +               *array = simple_strtoul(substr, NULL, 16);
> +
> +               hexstr += 2;
> +               array++;
> +               if (*hexstr == 0)
> +                       break;
> +       }
> +}

Feels like we have a function like this already in U-Boot?

> +
> +#ifdef CONFIG_GDSYS_LEGACY_OSD_CMDS
> +int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> +{
> +       struct udevice *dev;
> +       uint x, y;
> +       uint count;
> +       char *hexstr;
> +       u8 *buffer;
> +       size_t buflen;
> +
> +       if (argc < 4 || (strlen(argv[3])) % 2) {
> +               cmd_usage(cmdtp);
> +               return 1;
> +       }
> +
> +       x = simple_strtoul(argv[1], NULL, 16);
> +       y = simple_strtoul(argv[2], NULL, 16);
> +       hexstr = argv[3];
> +       count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
> +
> +       buflen = strlen(hexstr) / 2;
> +       buffer = malloc(buflen);
> +       hexstr_to_u8_array(hexstr, buffer, buflen);
> +
> +       for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
> +            dev;
> +            uclass_next_device(&dev))
> +               if (video_osd_set_mem(dev, x, y, buffer, buflen, count))
> +                       printf("Could not write to video mem on osd %s\n",
> +                              dev->name);

It seems odd to write it on all devices. If you want to do this, it
should be implemented in the uclass I think.

Also you ignore errors here.

Most commands allow you to select a particular device to work with.
You have this feature below, so why not use it here?

Same below.

> +
> +       free(buffer);
> +
> +       return 0;
> +}
> +
> +static int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc,
> +                       char * const argv[])
> +{
> +       struct udevice *dev;
> +       uint x, y;
> +       u8 color;
> +       char *text;
> +
> +       if (argc < 5) {
> +               cmd_usage(cmdtp);
> +               return 1;
> +       }
> +
> +       x = simple_strtoul(argv[1], NULL, 16);
> +       y = simple_strtoul(argv[2], NULL, 16);
> +       color = simple_strtoul(argv[3], NULL, 16);
> +       text = argv[4];
> +
> +       for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
> +            dev;
> +            uclass_next_device(&dev)) {
> +               if (video_osd_print(dev, x, y, color, text))
> +                       printf("Could not print string to osd %s\n", dev->name);
> +       }
> +
> +       return 0;
> +}
> +
> +int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> +{
> +       struct udevice *dev;
> +       uint x, y;
> +
> +       if (argc < 3) {
> +               cmd_usage(cmdtp);
> +               return 1;
> +       }
> +
> +       x = simple_strtoul(argv[1], NULL, 16);
> +       y = simple_strtoul(argv[2], NULL, 16);
> +
> +       for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
> +            dev;
> +            uclass_next_device(&dev)) {
> +               if (video_osd_set_size(dev, x, y))
> +                       printf("Could not set size on osd %s\n", dev->name);
> +       }
> +
> +       return 0;
> +}
> +#else
> +int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> +{
> +       uint x, y;
> +       uint count;
> +       char *hexstr;
> +       u8 *buffer;
> +       size_t buflen;
> +
> +       if (argc < 4 || (strlen(argv[3]) % 2)) {
> +               cmd_usage(cmdtp);
> +               return 1;
> +       }
> +
> +       if (!osd_cur) {
> +               puts("No osd selected\n");
> +               return -ENODEV;
> +       }
> +
> +       x = simple_strtoul(argv[1], NULL, 16);
> +       y = simple_strtoul(argv[2], NULL, 16);
> +       hexstr = argv[3];
> +       count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
> +
> +       buflen = strlen(hexstr) / 2;
> +       buffer = malloc(buflen);
> +       hexstr_to_u8_array(hexstr, buffer, buflen);
> +
> +       if (video_out_set_mem(osd_cur, x, y, buffer, buflen, count))
> +               printf("Could not write to video mem on osd %s\n",
> +                      osd_cur->name);
> +
> +       free(buffer);
> +
> +       return 0;
> +}
> +
> +int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> +{
> +       uint x, y;
> +       u8 color;
> +       char *text;
> +
> +       if (argc < 5) {
> +               cmd_usage(cmdtp);
> +               return 1;
> +       }
> +
> +       if (!osd_cur) {
> +               puts("No osd selected\n");
> +               return -ENODEV;
> +       }
> +
> +       x = simple_strtoul(argv[1], NULL, 16);
> +       y = simple_strtoul(argv[2], NULL, 16);
> +       color = simple_strtoul(argv[3], NULL, 16);
> +       text = argv[4];
> +
> +       if (video_out_print(osd_cur, x, y, color, text))
> +               printf("Could not print string to osd %s\n", osd_cur->name);
> +
> +       return 0;
> +}
> +
> +int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> +{
> +       uint x, y;
> +
> +       if (argc < 3) {
> +               cmd_usage(cmdtp);
> +               return 1;
> +       }
> +
> +       if (!osd_cur) {
> +               puts("No osd selected\n");
> +               return -ENODEV;
> +       }
> +
> +       x = simple_strtoul(argv[1], NULL, 16);
> +       y = simple_strtoul(argv[2], NULL, 16);
> +
> +       if (video_out_set_size(osd_cur, x, y))
> +               printf("Could not set size on osd %s\n", osd_cur->name);
> +
> +       return 0;
> +}
> +
> +static void show_osd(struct udevice *osd)
> +{
> +       printf("OSD %d:\t%s", osd->req_seq, osd->name);
> +       if (device_active(osd))
> +               printf("  (active %d)", osd->seq);
> +       printf("\n");
> +}
> +
> +static int do_show_osd(cmd_tbl_t *cmdtp, int flag, int argc,
> +                      char * const argv[])
> +{
> +       struct udevice *osd;
> +
> +       if (argc == 1) {
> +               /* show all OSDs */
> +               struct uclass *uc;
> +               int ret;
> +
> +               ret = uclass_get(UCLASS_VIDEO_OSD, &uc);
> +               if (ret)
> +                       return CMD_RET_FAILURE;
> +               uclass_foreach_dev(osd, uc)
> +                       show_osd(osd);
> +       } else {
> +               int i, ret;
> +
> +               /* show specific OSD */
> +               i = simple_strtoul(argv[1], NULL, 10);
> +
> +               ret = uclass_get_device_by_seq(UCLASS_IHS_FPGA, i, &osd);
> +               if (ret) {
> +                       printf("Invalid osd %d: err=%d\n", i, ret);
> +                       return CMD_RET_FAILURE;
> +               }
> +               show_osd(osd);
> +       }
> +
> +       return 0;
> +}
> +
> +static int cmd_osd_set_osd_num(unsigned int osdnum)
> +{
> +       struct udevice *osd;
> +       int ret;
> +
> +       ret = uclass_get_device_by_seq(UCLASS_IHS_VIDEO_OUT, osdnum, &osd);
> +       if (ret) {
> +               debug("%s: No OSD %d\n", __func__, osdnum);
> +               return ret;
> +       }
> +       osd_cur = osd;
> +
> +       return 0;
> +}
> +
> +static int osd_get_osd_cur(struct udevice **osdp)
> +{
> +       if (!osd_cur) {
> +               puts("No osd selected\n");
> +               return -ENODEV;
> +       }
> +       *osdp = osd_cur;
> +
> +       return 0;
> +}
> +
> +static int do_osd_num(cmd_tbl_t *cmdtp, int flag, int argc,
> +                     char * const argv[])
> +{
> +       int ret = 0;
> +       int osd_no;
> +
> +       if (argc == 1) {
> +               /* querying current setting */
> +               struct udevice *osd;
> +
> +               if (!osd_get_osd_cur(&osd))
> +                       osd_no = osd->seq;
> +               else
> +                       osd_no = -1;
> +               printf("Current osd is %d\n", osd_no);
> +       } else {
> +               osd_no = simple_strtoul(argv[1], NULL, 10);
> +               printf("Setting osd to %d\n", osd_no);
> +
> +               ret = cmd_osd_set_osd_num(osd_no);
> +
> +               if (ret)
> +                       printf("Failure changing osd number (%d)\n", ret);
> +       }
> +
> +       return ret ? CMD_RET_FAILURE : 0;
> +}
> +
> +static cmd_tbl_t cmd_osd_sub[] = {
> +       U_BOOT_CMD_MKENT(show, 1, 1, do_show_osd, "", ""),
> +       U_BOOT_CMD_MKENT(dev, 1, 1, do_osd_num, "", ""),
> +       U_BOOT_CMD_MKENT(write, 4, 1, do_osd_write, "", ""),
> +       U_BOOT_CMD_MKENT(print, 4, 1, do_osd_print, "", ""),
> +       U_BOOT_CMD_MKENT(size, 2, 1, do_osd_size, "", ""),
> +};
> +
> +static int do_osd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
> +{
> +       cmd_tbl_t *c;
> +
> +       if (argc < 2)
> +               return CMD_RET_USAGE;
> +
> +       /* Strip off leading 'osd' command argument */
> +       argc--;
> +       argv++;
> +
> +       c = find_cmd_tbl(argv[0], &cmd_osd_sub[0], ARRAY_SIZE(cmd_osd_sub));
> +
> +       if (c)
> +               return c->cmd(cmdtp, flag, argc, argv);
> +       else
> +               return CMD_RET_USAGE;
> +}
> +#endif
> +
> +#ifdef CONFIG_GDSYS_LEGACY_OSD_CMDS
> +U_BOOT_CMD(
> +       osdw, 5, 0, do_osd_write,
> +       "write 16-bit hex encoded buffer to osd memory",
> +       "osdw [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory\n"
> +);
> +
> +U_BOOT_CMD(
> +       osdp, 5, 0, do_osd_print,
> +       "write ASCII buffer to osd memory",
> +       "osdp [pos_x] [pos_y] [color] [text] - write ASCII buffer to osd memory\n"
> +);
> +
> +U_BOOT_CMD(
> +       osdsize, 3, 0, do_osd_size,
> +       "set OSD XY size in characters",
> +       "osdsize [size_x] [size_y] - set OSD XY size in characters\n"
> +);
> +#else
> +static char osd_help_text[] =
> +       "show  - show OSD info\n"
> +       "osd dev [dev] - show or set current OSD\n"
> +       "write [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory\n"
> +       "print [pos_x] [pos_y] [color] [text] - write ASCII buffer to osd memory\n"

What is colour?

> +       "size [size_x] [size_y] - set OSD XY size in characters\n";
> +
> +U_BOOT_CMD(
> +       osd, 6, 1, do_osd,
> +       "OSD sub-system",
> +       osd_help_text

Is there a way to list osd devices?

> +);
> +#endif
> --
> 2.16.1
>

Regards,
Simon
Mario Six April 10, 2018, 11:18 a.m. UTC | #2
Hi Simon,

On Fri, Mar 30, 2018 at 12:42 AM, Simon Glass <sjg@chromium.org> wrote:
> Hi Mario,
>
> On 28 March 2018 at 20:39, Mario Six <mario.six@gdsys.cc> wrote:
>> Add command to query information from and write text to IHS OSDs.
>>
>> Signed-off-by: Mario Six <mario.six@gdsys.cc>
>> ---
>>  cmd/Kconfig  |  16 +++
>>  cmd/Makefile |   1 +
>>  cmd/osd.c    | 366 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 383 insertions(+)
>>  create mode 100644 cmd/osd.c
>>
>> diff --git a/cmd/Kconfig b/cmd/Kconfig
>> index 136836d146..0d60051960 100644
>> --- a/cmd/Kconfig
>> +++ b/cmd/Kconfig
>> @@ -846,6 +846,22 @@ config CMD_ONENAND
>>           and erasing blocks. It allso provides a way to show and change
>>           bad blocks, and test the device.
>>
>> +config CMD_OSD
>> +       bool "osd"
>> +       help
>> +         Enable the 'osd' command which allows to query information from and
>> +         write text data to a OSD.
>
> Please expand help. E.g. what is an OSD?
>
>> +
>> +if CMD_OSD
>> +
>> +config GDSYS_LEGACY_OSD_CMDS
>> +       bool "Use legacy gdsys-specific commands"
>> +       help
>> +         Use the 'osdw', 'osdp', and 'osdsize' legacy commands required by
>> +         gdsys devices.
>> +
>> +endif
>> +
>>  config CMD_PART
>>         bool "part"
>>         select PARTITION_UUIDS
>> diff --git a/cmd/Makefile b/cmd/Makefile
>> index 9a358e4801..d3f7522700 100644
>> --- a/cmd/Makefile
>> +++ b/cmd/Makefile
>> @@ -61,6 +61,7 @@ obj-$(CONFIG_CMD_FS_GENERIC) += fs.o
>>  obj-$(CONFIG_CMD_FUSE) += fuse.o
>>  obj-$(CONFIG_CMD_GETTIME) += gettime.o
>>  obj-$(CONFIG_CMD_GPIO) += gpio.o
>> +obj-$(CONFIG_CMD_OSD) += osd.o
>>  obj-$(CONFIG_CMD_I2C) += i2c.o
>>  obj-$(CONFIG_CMD_IOTRACE) += iotrace.o
>>  obj-$(CONFIG_CMD_HASH) += hash.o
>> diff --git a/cmd/osd.c b/cmd/osd.c
>> new file mode 100644
>> index 0000000000..bbabfc3c54
>> --- /dev/null
>> +++ b/cmd/osd.c
>> @@ -0,0 +1,366 @@
>> +/*
>> + * (C) Copyright 2017
>> + * Mario Six,  Guntermann & Drunck GmbH, mario.six@gdsys.cc
>> + *
>> + * based on the gdsys osd driver, which is
>> + *
>> + * (C) Copyright 2010
>> + * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
>> + *
>> + * SPDX-License-Identifier:    GPL-2.0+
>> + */
>> +
>> +#include <common.h>
>> +#include <dm.h>
>> +#include <video_osd.h>
>> +#include <malloc.h>
>> +
>> +#ifndef CONFIG_GDSYS_LEGACY_OSD_CMDS
>> +static struct udevice *osd_cur;
>> +#endif
>> +
>> +void hexstr_to_u8_array(char *hexstr, u8 *array, size_t arrsize)
>> +{
>> +       size_t pos;
>> +
>> +       for (pos = 0; pos < arrsize; ++pos) {
>> +               char substr[3];
>> +
>> +               memcpy(substr, hexstr, 2);
>> +               substr[2] = 0;
>> +               *array = simple_strtoul(substr, NULL, 16);
>> +
>> +               hexstr += 2;
>> +               array++;
>> +               if (*hexstr == 0)
>> +                       break;
>> +       }
>> +}
>
> Feels like we have a function like this already in U-Boot?
>

If I haven't completely overlooked it, there isn't. The Linux kernel has
hexdump.c, which we could (partially?) import for this purpose. It seems pretty
useful in general.

>> +
>> +#ifdef CONFIG_GDSYS_LEGACY_OSD_CMDS
>> +int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> +{
>> +       struct udevice *dev;
>> +       uint x, y;
>> +       uint count;
>> +       char *hexstr;
>> +       u8 *buffer;
>> +       size_t buflen;
>> +
>> +       if (argc < 4 || (strlen(argv[3])) % 2) {
>> +               cmd_usage(cmdtp);
>> +               return 1;
>> +       }
>> +
>> +       x = simple_strtoul(argv[1], NULL, 16);
>> +       y = simple_strtoul(argv[2], NULL, 16);
>> +       hexstr = argv[3];
>> +       count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
>> +
>> +       buflen = strlen(hexstr) / 2;
>> +       buffer = malloc(buflen);
>> +       hexstr_to_u8_array(hexstr, buffer, buflen);
>> +
>> +       for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
>> +            dev;
>> +            uclass_next_device(&dev))
>> +               if (video_osd_set_mem(dev, x, y, buffer, buflen, count))
>> +                       printf("Could not write to video mem on osd %s\n",
>> +                              dev->name);
>
> It seems odd to write it on all devices. If you want to do this, it
> should be implemented in the uclass I think.
>
> Also you ignore errors here.
>
> Most commands allow you to select a particular device to work with.
> You have this feature below, so why not use it here?
>

This is actually the case if CONFIG_GDSYS_LEGACY_OSD_CMDS is not defined (which
is probably not that well-suited in the cmd/Kconfig now that I think about it;
I'll move that). This is because this command should be backwards-compatible
with our current OSD commands (which write to all available OSDs by default).
If CONFIG_GDSYS_LEGACY_OSD_CMDS is not defined, the commands work on a
by-device basis, and you can select the one you want to work with.

> Same below.
>
>> +
>> +       free(buffer);
>> +
>> +       return 0;
>> +}
>> +
>> +static int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc,
>> +                       char * const argv[])
>> +{
>> +       struct udevice *dev;
>> +       uint x, y;
>> +       u8 color;
>> +       char *text;
>> +
>> +       if (argc < 5) {
>> +               cmd_usage(cmdtp);
>> +               return 1;
>> +       }
>> +
>> +       x = simple_strtoul(argv[1], NULL, 16);
>> +       y = simple_strtoul(argv[2], NULL, 16);
>> +       color = simple_strtoul(argv[3], NULL, 16);
>> +       text = argv[4];
>> +
>> +       for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
>> +            dev;
>> +            uclass_next_device(&dev)) {
>> +               if (video_osd_print(dev, x, y, color, text))
>> +                       printf("Could not print string to osd %s\n", dev->name);
>> +       }
>> +
>> +       return 0;
>> +}
>> +
>> +int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> +{
>> +       struct udevice *dev;
>> +       uint x, y;
>> +
>> +       if (argc < 3) {
>> +               cmd_usage(cmdtp);
>> +               return 1;
>> +       }
>> +
>> +       x = simple_strtoul(argv[1], NULL, 16);
>> +       y = simple_strtoul(argv[2], NULL, 16);
>> +
>> +       for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
>> +            dev;
>> +            uclass_next_device(&dev)) {
>> +               if (video_osd_set_size(dev, x, y))
>> +                       printf("Could not set size on osd %s\n", dev->name);
>> +       }
>> +
>> +       return 0;
>> +}
>> +#else
>> +int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> +{
>> +       uint x, y;
>> +       uint count;
>> +       char *hexstr;
>> +       u8 *buffer;
>> +       size_t buflen;
>> +
>> +       if (argc < 4 || (strlen(argv[3]) % 2)) {
>> +               cmd_usage(cmdtp);
>> +               return 1;
>> +       }
>> +
>> +       if (!osd_cur) {
>> +               puts("No osd selected\n");
>> +               return -ENODEV;
>> +       }
>> +
>> +       x = simple_strtoul(argv[1], NULL, 16);
>> +       y = simple_strtoul(argv[2], NULL, 16);
>> +       hexstr = argv[3];
>> +       count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
>> +
>> +       buflen = strlen(hexstr) / 2;
>> +       buffer = malloc(buflen);
>> +       hexstr_to_u8_array(hexstr, buffer, buflen);
>> +
>> +       if (video_out_set_mem(osd_cur, x, y, buffer, buflen, count))
>> +               printf("Could not write to video mem on osd %s\n",
>> +                      osd_cur->name);
>> +
>> +       free(buffer);
>> +
>> +       return 0;
>> +}
>> +
>> +int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> +{
>> +       uint x, y;
>> +       u8 color;
>> +       char *text;
>> +
>> +       if (argc < 5) {
>> +               cmd_usage(cmdtp);
>> +               return 1;
>> +       }
>> +
>> +       if (!osd_cur) {
>> +               puts("No osd selected\n");
>> +               return -ENODEV;
>> +       }
>> +
>> +       x = simple_strtoul(argv[1], NULL, 16);
>> +       y = simple_strtoul(argv[2], NULL, 16);
>> +       color = simple_strtoul(argv[3], NULL, 16);
>> +       text = argv[4];
>> +
>> +       if (video_out_print(osd_cur, x, y, color, text))
>> +               printf("Could not print string to osd %s\n", osd_cur->name);
>> +
>> +       return 0;
>> +}
>> +
>> +int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> +{
>> +       uint x, y;
>> +
>> +       if (argc < 3) {
>> +               cmd_usage(cmdtp);
>> +               return 1;
>> +       }
>> +
>> +       if (!osd_cur) {
>> +               puts("No osd selected\n");
>> +               return -ENODEV;
>> +       }
>> +
>> +       x = simple_strtoul(argv[1], NULL, 16);
>> +       y = simple_strtoul(argv[2], NULL, 16);
>> +
>> +       if (video_out_set_size(osd_cur, x, y))
>> +               printf("Could not set size on osd %s\n", osd_cur->name);
>> +
>> +       return 0;
>> +}
>> +
>> +static void show_osd(struct udevice *osd)
>> +{
>> +       printf("OSD %d:\t%s", osd->req_seq, osd->name);
>> +       if (device_active(osd))
>> +               printf("  (active %d)", osd->seq);
>> +       printf("\n");
>> +}
>> +
>> +static int do_show_osd(cmd_tbl_t *cmdtp, int flag, int argc,
>> +                      char * const argv[])
>> +{
>> +       struct udevice *osd;
>> +
>> +       if (argc == 1) {
>> +               /* show all OSDs */
>> +               struct uclass *uc;
>> +               int ret;
>> +
>> +               ret = uclass_get(UCLASS_VIDEO_OSD, &uc);
>> +               if (ret)
>> +                       return CMD_RET_FAILURE;
>> +               uclass_foreach_dev(osd, uc)
>> +                       show_osd(osd);
>> +       } else {
>> +               int i, ret;
>> +
>> +               /* show specific OSD */
>> +               i = simple_strtoul(argv[1], NULL, 10);
>> +
>> +               ret = uclass_get_device_by_seq(UCLASS_IHS_FPGA, i, &osd);
>> +               if (ret) {
>> +                       printf("Invalid osd %d: err=%d\n", i, ret);
>> +                       return CMD_RET_FAILURE;
>> +               }
>> +               show_osd(osd);
>> +       }
>> +
>> +       return 0;
>> +}
>> +
>> +static int cmd_osd_set_osd_num(unsigned int osdnum)
>> +{
>> +       struct udevice *osd;
>> +       int ret;
>> +
>> +       ret = uclass_get_device_by_seq(UCLASS_IHS_VIDEO_OUT, osdnum, &osd);
>> +       if (ret) {
>> +               debug("%s: No OSD %d\n", __func__, osdnum);
>> +               return ret;
>> +       }
>> +       osd_cur = osd;
>> +
>> +       return 0;
>> +}
>> +
>> +static int osd_get_osd_cur(struct udevice **osdp)
>> +{
>> +       if (!osd_cur) {
>> +               puts("No osd selected\n");
>> +               return -ENODEV;
>> +       }
>> +       *osdp = osd_cur;
>> +
>> +       return 0;
>> +}
>> +
>> +static int do_osd_num(cmd_tbl_t *cmdtp, int flag, int argc,
>> +                     char * const argv[])
>> +{
>> +       int ret = 0;
>> +       int osd_no;
>> +
>> +       if (argc == 1) {
>> +               /* querying current setting */
>> +               struct udevice *osd;
>> +
>> +               if (!osd_get_osd_cur(&osd))
>> +                       osd_no = osd->seq;
>> +               else
>> +                       osd_no = -1;
>> +               printf("Current osd is %d\n", osd_no);
>> +       } else {
>> +               osd_no = simple_strtoul(argv[1], NULL, 10);
>> +               printf("Setting osd to %d\n", osd_no);
>> +
>> +               ret = cmd_osd_set_osd_num(osd_no);
>> +
>> +               if (ret)
>> +                       printf("Failure changing osd number (%d)\n", ret);
>> +       }
>> +
>> +       return ret ? CMD_RET_FAILURE : 0;
>> +}
>> +
>> +static cmd_tbl_t cmd_osd_sub[] = {
>> +       U_BOOT_CMD_MKENT(show, 1, 1, do_show_osd, "", ""),
>> +       U_BOOT_CMD_MKENT(dev, 1, 1, do_osd_num, "", ""),
>> +       U_BOOT_CMD_MKENT(write, 4, 1, do_osd_write, "", ""),
>> +       U_BOOT_CMD_MKENT(print, 4, 1, do_osd_print, "", ""),
>> +       U_BOOT_CMD_MKENT(size, 2, 1, do_osd_size, "", ""),
>> +};
>> +
>> +static int do_osd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> +{
>> +       cmd_tbl_t *c;
>> +
>> +       if (argc < 2)
>> +               return CMD_RET_USAGE;
>> +
>> +       /* Strip off leading 'osd' command argument */
>> +       argc--;
>> +       argv++;
>> +
>> +       c = find_cmd_tbl(argv[0], &cmd_osd_sub[0], ARRAY_SIZE(cmd_osd_sub));
>> +
>> +       if (c)
>> +               return c->cmd(cmdtp, flag, argc, argv);
>> +       else
>> +               return CMD_RET_USAGE;
>> +}
>> +#endif
>> +
>> +#ifdef CONFIG_GDSYS_LEGACY_OSD_CMDS
>> +U_BOOT_CMD(
>> +       osdw, 5, 0, do_osd_write,
>> +       "write 16-bit hex encoded buffer to osd memory",
>> +       "osdw [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory\n"
>> +);
>> +
>> +U_BOOT_CMD(
>> +       osdp, 5, 0, do_osd_print,
>> +       "write ASCII buffer to osd memory",
>> +       "osdp [pos_x] [pos_y] [color] [text] - write ASCII buffer to osd memory\n"
>> +);
>> +
>> +U_BOOT_CMD(
>> +       osdsize, 3, 0, do_osd_size,
>> +       "set OSD XY size in characters",
>> +       "osdsize [size_x] [size_y] - set OSD XY size in characters\n"
>> +);
>> +#else
>> +static char osd_help_text[] =
>> +       "show  - show OSD info\n"
>> +       "osd dev [dev] - show or set current OSD\n"
>> +       "write [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory\n"
>> +       "print [pos_x] [pos_y] [color] [text] - write ASCII buffer to osd memory\n"
>
> What is colour?
>
>> +       "size [size_x] [size_y] - set OSD XY size in characters\n";
>> +
>> +U_BOOT_CMD(
>> +       osd, 6, 1, do_osd,
>> +       "OSD sub-system",
>> +       osd_help_text
>
> Is there a way to list osd devices?
>

If CONFIG_GDSYS_LEGACY_OSD_CMDS is not defined, "osd show" will list
all available OSD devices.

>> +);
>> +#endif
>> --
>> 2.16.1
>>
>
> Regards,
> Simon

Everything else will be addressed in v2. Thanks for reviewing!

Best regards,

Mario
diff mbox series

Patch

diff --git a/cmd/Kconfig b/cmd/Kconfig
index 136836d146..0d60051960 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -846,6 +846,22 @@  config CMD_ONENAND
 	  and erasing blocks. It allso provides a way to show and change
 	  bad blocks, and test the device.

+config CMD_OSD
+	bool "osd"
+	help
+	  Enable the 'osd' command which allows to query information from and
+	  write text data to a OSD.
+
+if CMD_OSD
+
+config GDSYS_LEGACY_OSD_CMDS
+	bool "Use legacy gdsys-specific commands"
+	help
+	  Use the 'osdw', 'osdp', and 'osdsize' legacy commands required by
+	  gdsys devices.
+
+endif
+
 config CMD_PART
 	bool "part"
 	select PARTITION_UUIDS
diff --git a/cmd/Makefile b/cmd/Makefile
index 9a358e4801..d3f7522700 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -61,6 +61,7 @@  obj-$(CONFIG_CMD_FS_GENERIC) += fs.o
 obj-$(CONFIG_CMD_FUSE) += fuse.o
 obj-$(CONFIG_CMD_GETTIME) += gettime.o
 obj-$(CONFIG_CMD_GPIO) += gpio.o
+obj-$(CONFIG_CMD_OSD) += osd.o
 obj-$(CONFIG_CMD_I2C) += i2c.o
 obj-$(CONFIG_CMD_IOTRACE) += iotrace.o
 obj-$(CONFIG_CMD_HASH) += hash.o
diff --git a/cmd/osd.c b/cmd/osd.c
new file mode 100644
index 0000000000..bbabfc3c54
--- /dev/null
+++ b/cmd/osd.c
@@ -0,0 +1,366 @@ 
+/*
+ * (C) Copyright 2017
+ * Mario Six,  Guntermann & Drunck GmbH, mario.six@gdsys.cc
+ *
+ * based on the gdsys osd driver, which is
+ *
+ * (C) Copyright 2010
+ * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <video_osd.h>
+#include <malloc.h>
+
+#ifndef CONFIG_GDSYS_LEGACY_OSD_CMDS
+static struct udevice *osd_cur;
+#endif
+
+void hexstr_to_u8_array(char *hexstr, u8 *array, size_t arrsize)
+{
+	size_t pos;
+
+	for (pos = 0; pos < arrsize; ++pos) {
+		char substr[3];
+
+		memcpy(substr, hexstr, 2);
+		substr[2] = 0;
+		*array = simple_strtoul(substr, NULL, 16);
+
+		hexstr += 2;
+		array++;
+		if (*hexstr == 0)
+			break;
+	}
+}
+
+#ifdef CONFIG_GDSYS_LEGACY_OSD_CMDS
+int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	struct udevice *dev;
+	uint x, y;
+	uint count;
+	char *hexstr;
+	u8 *buffer;
+	size_t buflen;
+
+	if (argc < 4 || (strlen(argv[3])) % 2) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	hexstr = argv[3];
+	count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
+
+	buflen = strlen(hexstr) / 2;
+	buffer = malloc(buflen);
+	hexstr_to_u8_array(hexstr, buffer, buflen);
+
+	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
+	     dev;
+	     uclass_next_device(&dev))
+		if (video_osd_set_mem(dev, x, y, buffer, buflen, count))
+			printf("Could not write to video mem on osd %s\n",
+			       dev->name);
+
+	free(buffer);
+
+	return 0;
+}
+
+static int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc,
+			char * const argv[])
+{
+	struct udevice *dev;
+	uint x, y;
+	u8 color;
+	char *text;
+
+	if (argc < 5) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	color = simple_strtoul(argv[3], NULL, 16);
+	text = argv[4];
+
+	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
+	     dev;
+	     uclass_next_device(&dev)) {
+		if (video_osd_print(dev, x, y, color, text))
+			printf("Could not print string to osd %s\n", dev->name);
+	}
+
+	return 0;
+}
+
+int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	struct udevice *dev;
+	uint x, y;
+
+	if (argc < 3) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+
+	for (uclass_first_device(UCLASS_VIDEO_OSD, &dev);
+	     dev;
+	     uclass_next_device(&dev)) {
+		if (video_osd_set_size(dev, x, y))
+			printf("Could not set size on osd %s\n", dev->name);
+	}
+
+	return 0;
+}
+#else
+int do_osd_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	uint x, y;
+	uint count;
+	char *hexstr;
+	u8 *buffer;
+	size_t buflen;
+
+	if (argc < 4 || (strlen(argv[3]) % 2)) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	if (!osd_cur) {
+		puts("No osd selected\n");
+		return -ENODEV;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	hexstr = argv[3];
+	count = (argc > 4) ? simple_strtoul(argv[4], NULL, 16) : 1;
+
+	buflen = strlen(hexstr) / 2;
+	buffer = malloc(buflen);
+	hexstr_to_u8_array(hexstr, buffer, buflen);
+
+	if (video_out_set_mem(osd_cur, x, y, buffer, buflen, count))
+		printf("Could not write to video mem on osd %s\n",
+		       osd_cur->name);
+
+	free(buffer);
+
+	return 0;
+}
+
+int do_osd_print(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	uint x, y;
+	u8 color;
+	char *text;
+
+	if (argc < 5) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	if (!osd_cur) {
+		puts("No osd selected\n");
+		return -ENODEV;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+	color = simple_strtoul(argv[3], NULL, 16);
+	text = argv[4];
+
+	if (video_out_print(osd_cur, x, y, color, text))
+		printf("Could not print string to osd %s\n", osd_cur->name);
+
+	return 0;
+}
+
+int do_osd_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	uint x, y;
+
+	if (argc < 3) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	if (!osd_cur) {
+		puts("No osd selected\n");
+		return -ENODEV;
+	}
+
+	x = simple_strtoul(argv[1], NULL, 16);
+	y = simple_strtoul(argv[2], NULL, 16);
+
+	if (video_out_set_size(osd_cur, x, y))
+		printf("Could not set size on osd %s\n", osd_cur->name);
+
+	return 0;
+}
+
+static void show_osd(struct udevice *osd)
+{
+	printf("OSD %d:\t%s", osd->req_seq, osd->name);
+	if (device_active(osd))
+		printf("  (active %d)", osd->seq);
+	printf("\n");
+}
+
+static int do_show_osd(cmd_tbl_t *cmdtp, int flag, int argc,
+		       char * const argv[])
+{
+	struct udevice *osd;
+
+	if (argc == 1) {
+		/* show all OSDs */
+		struct uclass *uc;
+		int ret;
+
+		ret = uclass_get(UCLASS_VIDEO_OSD, &uc);
+		if (ret)
+			return CMD_RET_FAILURE;
+		uclass_foreach_dev(osd, uc)
+			show_osd(osd);
+	} else {
+		int i, ret;
+
+		/* show specific OSD */
+		i = simple_strtoul(argv[1], NULL, 10);
+
+		ret = uclass_get_device_by_seq(UCLASS_IHS_FPGA, i, &osd);
+		if (ret) {
+			printf("Invalid osd %d: err=%d\n", i, ret);
+			return CMD_RET_FAILURE;
+		}
+		show_osd(osd);
+	}
+
+	return 0;
+}
+
+static int cmd_osd_set_osd_num(unsigned int osdnum)
+{
+	struct udevice *osd;
+	int ret;
+
+	ret = uclass_get_device_by_seq(UCLASS_IHS_VIDEO_OUT, osdnum, &osd);
+	if (ret) {
+		debug("%s: No OSD %d\n", __func__, osdnum);
+		return ret;
+	}
+	osd_cur = osd;
+
+	return 0;
+}
+
+static int osd_get_osd_cur(struct udevice **osdp)
+{
+	if (!osd_cur) {
+		puts("No osd selected\n");
+		return -ENODEV;
+	}
+	*osdp = osd_cur;
+
+	return 0;
+}
+
+static int do_osd_num(cmd_tbl_t *cmdtp, int flag, int argc,
+		      char * const argv[])
+{
+	int ret = 0;
+	int osd_no;
+
+	if (argc == 1) {
+		/* querying current setting */
+		struct udevice *osd;
+
+		if (!osd_get_osd_cur(&osd))
+			osd_no = osd->seq;
+		else
+			osd_no = -1;
+		printf("Current osd is %d\n", osd_no);
+	} else {
+		osd_no = simple_strtoul(argv[1], NULL, 10);
+		printf("Setting osd to %d\n", osd_no);
+
+		ret = cmd_osd_set_osd_num(osd_no);
+
+		if (ret)
+			printf("Failure changing osd number (%d)\n", ret);
+	}
+
+	return ret ? CMD_RET_FAILURE : 0;
+}
+
+static cmd_tbl_t cmd_osd_sub[] = {
+	U_BOOT_CMD_MKENT(show, 1, 1, do_show_osd, "", ""),
+	U_BOOT_CMD_MKENT(dev, 1, 1, do_osd_num, "", ""),
+	U_BOOT_CMD_MKENT(write, 4, 1, do_osd_write, "", ""),
+	U_BOOT_CMD_MKENT(print, 4, 1, do_osd_print, "", ""),
+	U_BOOT_CMD_MKENT(size, 2, 1, do_osd_size, "", ""),
+};
+
+static int do_osd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	cmd_tbl_t *c;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	/* Strip off leading 'osd' command argument */
+	argc--;
+	argv++;
+
+	c = find_cmd_tbl(argv[0], &cmd_osd_sub[0], ARRAY_SIZE(cmd_osd_sub));
+
+	if (c)
+		return c->cmd(cmdtp, flag, argc, argv);
+	else
+		return CMD_RET_USAGE;
+}
+#endif
+
+#ifdef CONFIG_GDSYS_LEGACY_OSD_CMDS
+U_BOOT_CMD(
+	osdw, 5, 0, do_osd_write,
+	"write 16-bit hex encoded buffer to osd memory",
+	"osdw [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory\n"
+);
+
+U_BOOT_CMD(
+	osdp, 5, 0, do_osd_print,
+	"write ASCII buffer to osd memory",
+	"osdp [pos_x] [pos_y] [color] [text] - write ASCII buffer to osd memory\n"
+);
+
+U_BOOT_CMD(
+	osdsize, 3, 0, do_osd_size,
+	"set OSD XY size in characters",
+	"osdsize [size_x] [size_y] - set OSD XY size in characters\n"
+);
+#else
+static char osd_help_text[] =
+	"show  - show OSD info\n"
+	"osd dev [dev] - show or set current OSD\n"
+	"write [pos_x] [pos_y] [buffer] [count] - write 8-bit hex encoded buffer to osd memory\n"
+	"print [pos_x] [pos_y] [color] [text] - write ASCII buffer to osd memory\n"
+	"size [size_x] [size_y] - set OSD XY size in characters\n";
+
+U_BOOT_CMD(
+	osd, 6, 1, do_osd,
+	"OSD sub-system",
+	osd_help_text
+);
+#endif