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hwstub: introduce lua code for the STMP and Creative ZEN V/Mozaic

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Change-Id: Ice5f509a2e0d2114436d4760f338b9203ef96691
This commit is contained in:
Amaury Pouly 2013-06-13 02:12:01 +02:00
parent c5357940ab
commit f9cb5de580
8 changed files with 661 additions and 0 deletions
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100
utils/hwstub/tools/lua/stmp/lcdif.lua Normal file
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--
-- LCDIF
--
STMP.lcdif = {}
function STMP.lcdif.init()
HW.LCDIF.CTRL.SFTRST.set()
HW.LCDIF.CTRL.SFTRST.clr()
HW.LCDIF.CTRL.CLKGATE.clr()
end
function STMP.lcdif.set_system_timing(data_setup, data_hold, cmd_setup, cmd_hold)
HW.LCDIF.TIMING.CMD_HOLD.write(cmd_hold)
HW.LCDIF.TIMING.CMD_SETUP.write(cmd_setup)
HW.LCDIF.TIMING.DATA_HOLD.write(data_hold)
HW.LCDIF.TIMING.DATA_SETUP.write(data_setup)
end
function STMP.lcdif.set_byte_packing_format(val)
HW.LCDIF.CTRL1.BYTE_PACKING_FORMAT.write(val)
end
function STMP.lcdif.set_reset(val)
if STMP.is_stmp3600() then
HW.LCDIF.CTRL.RESET.write(val)
else
HW.LCDIF.CTRL1.RESET.write(val)
end
end
function STMP.lcdif.set_word_length(bus_width)
if STMP.is_stmp3600() or STMP.is_stmp3700() then
if bus_width == 8 then
HW.LCDIF.CTRL.WORD_LENGTH.set()
else
HW.LCDIF.CTRL.WORD_LENGTH.clr()
end
else
error("STMP.lcdif.set_word_length: unimplemented")
end
end
function STMP.lcdif.get_word_length()
if STMP.is_stmp3600() or STMP.is_stmp3700() then
if HW.LCDIF.CTRL.WORD_LENGTH.read() == 1 then
return 8
else
return 16
end
else
error("STMP.lcdif.get_word_length: unimplemented")
end
end
function STMP.lcdif.set_data_swizzle(swizzle)
local v = swizzle
if type(swizzle) == "string" then
if swizzle == "NONE" then
v = 0
else
error("unimplemented")
end
end
HW.LCDIF.CTRL.DATA_SWIZZLE.write(v)
end
function STMP.lcdif.is_busy()
if STMP.is_stmp3600() then
return HW.LCDIF.CTRL.FIFO_STATUS.read() == 0
else
return HW.LCDIF.STAT.TXFIFO_FULL.read() == 1
end
end
function STMP.lcdif.send_pio(data_mode, data)
local wl = STMP.lcdif.get_word_length()
if data_mode then
HW.LCDIF.CTRL.DATA_SELECT.set()
else
HW.LCDIF.CTRL.DATA_SELECT.clr()
end
STMP.debug(string.format("lcdif: count = %d", #data))
HW.LCDIF.CTRL.RUN.clr()
HW.LCDIF.CTRL.COUNT.write(#data)
HW.LCDIF.CTRL.RUN.set()
local i = 1
while i <= #data do
local v = 0
local v_size = 0
while i <= #data and v_size + wl <= 32 do
v = bit32.bor(v, bit32.lshift(data[i], v_size))
v_size = v_size + wl
i = i + 1
end
STMP.debug(string.format("lcdif: i=%d send 0x%x", i, v))
while STMP.lcdif.is_busy() do STMP.debug("lcdif: fifo full") end
HW.LCDIF.DATA.write(v)
end
end