Those two files describe userspace-faced information. While part of it might fit on uAPI, it sounds to me that the admin guide is the best place for them. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx> --- .../admin-guide/auxdisplay/cfag12864b.rst | 98 ++++++++++++++++ .../admin-guide/auxdisplay/index.rst | 16 +++ .../admin-guide/auxdisplay/ks0108.rst | 50 +++++++++ Documentation/admin-guide/index.rst | 1 + Documentation/auxdisplay/cfag12864b | 105 ------------------ Documentation/auxdisplay/ks0108 | 55 --------- MAINTAINERS | 2 +- drivers/auxdisplay/Kconfig | 2 +- 8 files changed, 167 insertions(+), 162 deletions(-) create mode 100644 Documentation/admin-guide/auxdisplay/cfag12864b.rst create mode 100644 Documentation/admin-guide/auxdisplay/index.rst create mode 100644 Documentation/admin-guide/auxdisplay/ks0108.rst delete mode 100644 Documentation/auxdisplay/cfag12864b delete mode 100644 Documentation/auxdisplay/ks0108 diff --git a/Documentation/admin-guide/auxdisplay/cfag12864b.rst b/Documentation/admin-guide/auxdisplay/cfag12864b.rst new file mode 100644 index 000000000000..18c2865bd322 --- /dev/null +++ b/Documentation/admin-guide/auxdisplay/cfag12864b.rst @@ -0,0 +1,98 @@ +=================================== +cfag12864b LCD Driver Documentation +=================================== + +:License: GPLv2 +:Author & Maintainer: Miguel Ojeda Sandonis +:Date: 2006-10-27 + + + +.. INDEX + + 1. DRIVER INFORMATION + 2. DEVICE INFORMATION + 3. WIRING + 4. USERSPACE PROGRAMMING + +1. Driver Information +--------------------- + +This driver supports a cfag12864b LCD. + + +2. Device Information +--------------------- + +:Manufacturer: Crystalfontz +:Device Name: Crystalfontz 12864b LCD Series +:Device Code: cfag12864b +:Webpage: http://www.crystalfontz.com +:Device Webpage: http://www.crystalfontz.com/products/12864b/ +:Type: LCD (Liquid Crystal Display) +:Width: 128 +:Height: 64 +:Colors: 2 (B/N) +:Controller: ks0108 +:Controllers: 2 +:Pages: 8 each controller +:Addresses: 64 each page +:Data size: 1 byte each address +:Memory size: 2 * 8 * 64 * 1 = 1024 bytes = 1 Kbyte + + +3. Wiring +--------- + +The cfag12864b LCD Series don't have official wiring. + +The common wiring is done to the parallel port as shown:: + + Parallel Port cfag12864b + + Name Pin# Pin# Name + + Strobe ( 1)------------------------------(17) Enable + Data 0 ( 2)------------------------------( 4) Data 0 + Data 1 ( 3)------------------------------( 5) Data 1 + Data 2 ( 4)------------------------------( 6) Data 2 + Data 3 ( 5)------------------------------( 7) Data 3 + Data 4 ( 6)------------------------------( 8) Data 4 + Data 5 ( 7)------------------------------( 9) Data 5 + Data 6 ( 8)------------------------------(10) Data 6 + Data 7 ( 9)------------------------------(11) Data 7 + (10) [+5v]---( 1) Vdd + (11) [GND]---( 2) Ground + (12) [+5v]---(14) Reset + (13) [GND]---(15) Read / Write + Line (14)------------------------------(13) Controller Select 1 + (15) + Init (16)------------------------------(12) Controller Select 2 + Select (17)------------------------------(16) Data / Instruction + Ground (18)---[GND] [+5v]---(19) LED + + Ground (19)---[GND] + Ground (20)---[GND] E A Values: + Ground (21)---[GND] [GND]---[P1]---(18) Vee - R = Resistor = 22 ohm + Ground (22)---[GND] | - P1 = Preset = 10 Kohm + Ground (23)---[GND] ---- S ------( 3) V0 - P2 = Preset = 1 Kohm + Ground (24)---[GND] | | + Ground (25)---[GND] [GND]---[P2]---[R]---(20) LED - + + +4. Userspace Programming +------------------------ + +The cfag12864bfb describes a framebuffer device (/dev/fbX). + +It has a size of 1024 bytes = 1 Kbyte. +Each bit represents one pixel. If the bit is high, the pixel will +turn on. If the pixel is low, the pixel will turn off. + +You can use the framebuffer as a file: fopen, fwrite, fclose... +Although the LCD won't get updated until the next refresh time arrives. + +Also, you can mmap the framebuffer: open & mmap, munmap & close... +which is the best option for most uses. + +Check samples/auxdisplay/cfag12864b-example.c +for a real working userspace complete program with usage examples. diff --git a/Documentation/admin-guide/auxdisplay/index.rst b/Documentation/admin-guide/auxdisplay/index.rst new file mode 100644 index 000000000000..e466f0595248 --- /dev/null +++ b/Documentation/admin-guide/auxdisplay/index.rst @@ -0,0 +1,16 @@ +========================= +Auxiliary Display Support +========================= + +.. toctree:: + :maxdepth: 1 + + ks0108.rst + cfag12864b.rst + +.. only:: subproject and html + + Indices + ======= + + * :ref:`genindex` diff --git a/Documentation/admin-guide/auxdisplay/ks0108.rst b/Documentation/admin-guide/auxdisplay/ks0108.rst new file mode 100644 index 000000000000..c0b7faf73136 --- /dev/null +++ b/Documentation/admin-guide/auxdisplay/ks0108.rst @@ -0,0 +1,50 @@ +========================================== +ks0108 LCD Controller Driver Documentation +========================================== + +:License: GPLv2 +:Author & Maintainer: Miguel Ojeda Sandonis +:Date: 2006-10-27 + + + +.. INDEX + + 1. DRIVER INFORMATION + 2. DEVICE INFORMATION + 3. WIRING + + +1. Driver Information +--------------------- + +This driver supports the ks0108 LCD controller. + + +2. Device Information +--------------------- + +:Manufacturer: Samsung +:Device Name: KS0108 LCD Controller +:Device Code: ks0108 +:Webpage: - +:Device Webpage: - +:Type: LCD Controller (Liquid Crystal Display Controller) +:Width: 64 +:Height: 64 +:Colors: 2 (B/N) +:Pages: 8 +:Addresses: 64 each page +:Data size: 1 byte each address +:Memory size: 8 * 64 * 1 = 512 bytes + + +3. Wiring +--------- + +The driver supports data parallel port wiring. + +If you aren't building LCD related hardware, you should check +your LCD specific wiring information in the same folder. + +For example, check Documentation/admin-guide/auxdisplay/cfag12864b.rst diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst index 457fd1112b65..3f8f7d564552 100644 --- a/Documentation/admin-guide/index.rst +++ b/Documentation/admin-guide/index.rst @@ -101,6 +101,7 @@ configure specific aspects of kernel behavior to your liking. iostats kernel-per-CPU-kthreads laptops/index + auxdisplay/index lcd-panel-cgram ldm lockup-watchdogs diff --git a/Documentation/auxdisplay/cfag12864b b/Documentation/auxdisplay/cfag12864b deleted file mode 100644 index 12fd51b8de75..000000000000 --- a/Documentation/auxdisplay/cfag12864b +++ /dev/null @@ -1,105 +0,0 @@ - =================================== - cfag12864b LCD Driver Documentation - =================================== - -License: GPLv2 -Author & Maintainer: Miguel Ojeda Sandonis -Date: 2006-10-27 - - - --------- -0. INDEX --------- - - 1. DRIVER INFORMATION - 2. DEVICE INFORMATION - 3. WIRING - 4. USERSPACE PROGRAMMING - - ---------------------- -1. DRIVER INFORMATION ---------------------- - -This driver supports a cfag12864b LCD. - - ---------------------- -2. DEVICE INFORMATION ---------------------- - -Manufacturer: Crystalfontz -Device Name: Crystalfontz 12864b LCD Series -Device Code: cfag12864b -Webpage: http://www.crystalfontz.com -Device Webpage: http://www.crystalfontz.com/products/12864b/ -Type: LCD (Liquid Crystal Display) -Width: 128 -Height: 64 -Colors: 2 (B/N) -Controller: ks0108 -Controllers: 2 -Pages: 8 each controller -Addresses: 64 each page -Data size: 1 byte each address -Memory size: 2 * 8 * 64 * 1 = 1024 bytes = 1 Kbyte - - ---------- -3. WIRING ---------- - -The cfag12864b LCD Series don't have official wiring. - -The common wiring is done to the parallel port as shown: - -Parallel Port cfag12864b - - Name Pin# Pin# Name - -Strobe ( 1)------------------------------(17) Enable -Data 0 ( 2)------------------------------( 4) Data 0 -Data 1 ( 3)------------------------------( 5) Data 1 -Data 2 ( 4)------------------------------( 6) Data 2 -Data 3 ( 5)------------------------------( 7) Data 3 -Data 4 ( 6)------------------------------( 8) Data 4 -Data 5 ( 7)------------------------------( 9) Data 5 -Data 6 ( 8)------------------------------(10) Data 6 -Data 7 ( 9)------------------------------(11) Data 7 - (10) [+5v]---( 1) Vdd - (11) [GND]---( 2) Ground - (12) [+5v]---(14) Reset - (13) [GND]---(15) Read / Write - Line (14)------------------------------(13) Controller Select 1 - (15) - Init (16)------------------------------(12) Controller Select 2 -Select (17)------------------------------(16) Data / Instruction -Ground (18)---[GND] [+5v]---(19) LED + -Ground (19)---[GND] -Ground (20)---[GND] E A Values: -Ground (21)---[GND] [GND]---[P1]---(18) Vee - R = Resistor = 22 ohm -Ground (22)---[GND] | - P1 = Preset = 10 Kohm -Ground (23)---[GND] ---- S ------( 3) V0 - P2 = Preset = 1 Kohm -Ground (24)---[GND] | | -Ground (25)---[GND] [GND]---[P2]---[R]---(20) LED - - - ------------------------- -4. USERSPACE PROGRAMMING ------------------------- - -The cfag12864bfb describes a framebuffer device (/dev/fbX). - -It has a size of 1024 bytes = 1 Kbyte. -Each bit represents one pixel. If the bit is high, the pixel will -turn on. If the pixel is low, the pixel will turn off. - -You can use the framebuffer as a file: fopen, fwrite, fclose... -Although the LCD won't get updated until the next refresh time arrives. - -Also, you can mmap the framebuffer: open & mmap, munmap & close... -which is the best option for most uses. - -Check samples/auxdisplay/cfag12864b-example.c -for a real working userspace complete program with usage examples. diff --git a/Documentation/auxdisplay/ks0108 b/Documentation/auxdisplay/ks0108 deleted file mode 100644 index 8ddda0c8ceef..000000000000 --- a/Documentation/auxdisplay/ks0108 +++ /dev/null @@ -1,55 +0,0 @@ - ========================================== - ks0108 LCD Controller Driver Documentation - ========================================== - -License: GPLv2 -Author & Maintainer: Miguel Ojeda Sandonis -Date: 2006-10-27 - - - --------- -0. INDEX --------- - - 1. DRIVER INFORMATION - 2. DEVICE INFORMATION - 3. WIRING - - ---------------------- -1. DRIVER INFORMATION ---------------------- - -This driver supports the ks0108 LCD controller. - - ---------------------- -2. DEVICE INFORMATION ---------------------- - -Manufacturer: Samsung -Device Name: KS0108 LCD Controller -Device Code: ks0108 -Webpage: - -Device Webpage: - -Type: LCD Controller (Liquid Crystal Display Controller) -Width: 64 -Height: 64 -Colors: 2 (B/N) -Pages: 8 -Addresses: 64 each page -Data size: 1 byte each address -Memory size: 8 * 64 * 1 = 512 bytes - - ---------- -3. WIRING ---------- - -The driver supports data parallel port wiring. - -If you aren't building LCD related hardware, you should check -your LCD specific wiring information in the same folder. - -For example, check Documentation/auxdisplay/cfag12864b. diff --git a/MAINTAINERS b/MAINTAINERS index fd2af50e66b5..4cd39259fcdc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8991,7 +8991,7 @@ F: kernel/kprobes.c KS0108 LCD CONTROLLER DRIVER M: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@xxxxxxxxx> S: Maintained -F: Documentation/auxdisplay/ks0108 +F: Documentation/admin-guide/auxdisplay/ks0108.rst F: drivers/auxdisplay/ks0108.c F: include/linux/ks0108.h diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig index dd61fdd400f0..6b476e663e80 100644 --- a/drivers/auxdisplay/Kconfig +++ b/drivers/auxdisplay/Kconfig @@ -97,7 +97,7 @@ config CFAG12864B say Y. You also need the ks0108 LCD Controller driver. For help about how to wire your LCD to the parallel port, - check Documentation/auxdisplay/cfag12864b + check Documentation/admin-guide/auxdisplay/cfag12864b.rst Depends on the x86 arch and the framebuffer support. -- 2.21.0
