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Code

make booting from sd work

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This commit is contained in:
Bas Wijnen 2010-07-08 12:38:36 +02:00
parent a277156a2e
commit 19f1d128d0
9 changed files with 128 additions and 54 deletions
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2
devices.hhp
View File

@ -78,7 +78,7 @@ namespace Iris:
/// Set the size of the string. Strings may have a limit to this setting.
void truncate (Num size):
call (CAP_MASTER_DIRECT | TRUNCATE, size)
/// Set exactly 4 characters. The index must be word-aligned.
/// Set exactly 4 characters. The index must be aligned. This need not be supported for strings with align larger than 4 bytes.
void set_chars (Num idx, char buffer[4]):
call (Num (CAP_MASTER_DIRECT | SET_CHARS, *(unsigned *)buffer), idx)
/// Overwrite a block from the string with data at offset on the page. This need not be implemented for strings smaller than PAGE_SIZE. The all arguments must be aligned. The caller may lose the frame in the transaction. Only the specified part of the page is used for overwriting data.

28
init.config
View File

@ -1,24 +1,24 @@
# driver <name> = '<filename>' load a file into memory to be run priviledged.
# program <name> = '<filename>' load a file into memory to be run normally.
#driver driver_lcd = "lcd.elf"
#driver driver_buzzer = "buzzer.elf"
driver driver_lcd = "lcd.elf"
driver driver_buzzer = "buzzer.elf"
driver driver_gpio = "gpio.elf"
#program alarm = "alarm.elf"
#program gui = "gui.elf"
#driver nand = "nand.elf"
program alarm = "alarm.elf"
program gui = "gui.elf"
driver nand = "nand.elf"
driver sdmmc = "sd+mmc.elf"
program partition = "partition.elf"
program fat = "fat.elf"
program test = "test.elf"
# receive <name> / <type> [, <index>] = <cap> prepare to accept a capability from a named program.
#receive driver_lcd / Display = display
#receive driver_lcd / Setting = display_bright
#receive driver_buzzer / Buzzer = buzzer
receive driver_lcd / Display = display
receive driver_lcd / Setting = display_bright
receive driver_buzzer / Buzzer = buzzer
receive driver_gpio / Keyboard , 0 = keyboard
receive driver_gpio / Keyboard , 1 = sysreq
receive driver_gpio / Event = sdmmc_gpio
#receive alarm / UI = ui
receive alarm / UI = ui
receive sdmmc / WString = sdmmc
receive partition / WString, 0 = p0
receive partition / WString, 1 = p1
@ -30,11 +30,11 @@
sysreq sysreq
# give <name> / <type> [, <index>] = <cap> give this capability to this program when it requests it.
#give gui / UI = ui
#give gui / Display = display
#give gui / Setting = display_bright
#give gui / Buzzer = buzzer
#give gui / Keyboard = keyboard
give gui / UI = ui
give gui / Display = display
give gui / Setting = display_bright
give gui / Buzzer = buzzer
give gui / Keyboard = keyboard
give sdmmc / Event = sdmmc_gpio
give partition / WString = sdmmc
give fat / WString = p0

2
mips/nanonote/Makefile.arch
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@ -16,7 +16,7 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
load = 0x80000000
UDC_BOOT=1
#UDC_BOOT = set
ARCH_CPPFLAGS = -I. -Imips -Imips/nanonote -Wa,-mips32 -DNANONOTE -DUSE_SERIAL
CROSS = mipsel-linux-gnu-

1
source/bootinit.ccp
View File

@ -23,6 +23,7 @@
#define ELFRUN_NAME "elfrun.elf"
#define INIT_NAME "init.elf"
// These numbers are only used for elfrun.
#define NUM_SLOTS 8
#define NUM_CAPS 32

8
source/crt0.ccp
View File

@ -40,9 +40,9 @@ namespace Iris:
__recv_data_t recv
void print_caps ():
// Assume __caps to be 32.
bool used[32]
for unsigned i = 0; i < 32; ++i:
// __caps cannot be larger than 63.
bool used[63]
for unsigned i = 0; i < __caps; ++i:
used[i] = true
unsigned num = 0
for list *i = __first_free_cap; i; i = i->next:
@ -52,7 +52,7 @@ namespace Iris:
++num
kdebug_num (num, 2)
kdebug (":")
for unsigned i = 0; i < 32; ++i:
for unsigned i = 0; i < __caps; ++i:
kdebug_char (used[i] ? '#' : '.')
kdebug_char ('\n')

55
source/fat.ccp
View File

@ -296,9 +296,9 @@ struct Fat:
else if bits == 12 && fat[c] == 0xfff || bits == 16 && fat[c] == 0xffff || bits == 32 && fat[c] == 0xfffffff:
// Last cluster in chain.
fat[c] = ~0
kdebug ("last cluster: ")
kdebug_num (c)
kdebug ("\n")
//kdebug ("last cluster: ")
//kdebug_num (c)
//kdebug ("\n")
else if bits == 12 && fat[c] == 0xff7 || bits == 16 && fat[c] == 0xfff7 || bits == 32 && fat[c] == 0xffffff7:
// Bad cluster.
fat[c] = first_bad_cluster
@ -307,10 +307,10 @@ struct Fat:
else:
// Non-last cluster in chain.
fat[c] -= 2
kdebug_num (c)
kdebug (" -> ")
kdebug_num (fat[c])
kdebug ("\n")
//kdebug_num (c)
//kdebug (" -> ")
//kdebug_num (fat[c])
//kdebug ("\n")
unsigned fat_lookup (unsigned first_cluster, unsigned cluster):
//kdebug ("looking up ")
//kdebug_num (first_cluster)
@ -334,20 +334,19 @@ struct Fat:
bool archive, readonly, system, hidden, directory, volume
unsigned create_second, create_minute_hour, create_date, access_date, time, date
unsigned checksum
void load_cluster (unsigned idx, Iris::Page p = page, unsigned offset = 0):
void load_cluster (unsigned idx, unsigned offset_in_cluster, Iris::Page p = page, unsigned offset = 0):
unsigned cluster = fat->fat_lookup (first_cluster, idx >> fat->cluster_size_bits)
//kdebug ("loading cluster ")
//kdebug_num (idx)
//kdebug ("+")
//kdebug_num (offset_in_cluster)
//kdebug ("@")
//kdebug_num (cluster)
//kdebug (" from file\n")
if cluster == ~0:
kdebug ("invalid cluster requested from file\n")
return
read_block ((fat->header_sectors + (Iris::Num (cluster).value () << fat->sectors_per_cluster_bits)) << fat->sector_size_bits, p, 1 << fat->cluster_size_bits, offset)
//kdebug ("sector ")
//kdebug_num (fat->header_sectors + (Iris::Num (cluster).value () << fat->sectors_per_cluster_bits))
//kdebug ("\n")
read_block (((fat->header_sectors + (Iris::Num (cluster).value () << fat->sectors_per_cluster_bits)) << fat->sector_size_bits) + offset_in_cluster, p, fat->cluster_size_bits < PAGE_BITS ? 1 << fat->cluster_size_bits : PAGE_SIZE, offset)
char *load_dir_entry (unsigned dir, unsigned idx):
unsigned sector = idx >> (sector_size_bits - 5)
unsigned num = (idx << 5) & ~BLOCK_MASK
@ -398,8 +397,11 @@ struct Fat:
kdebug ("unable to load dir entry\n")
return false
f->fat = this
//kdebug ("loading dir entry for ")
for unsigned i = 0; i < 11; ++i:
f->name[i] = e[i]
//kdebug_char (f->name[i])
//kdebug ("\n")
f->readonly = e[0xb] & 0x1
f->system = e[0xb] & 0x2
f->hidden = e[0xb] & 0x4
@ -589,8 +591,6 @@ Iris::Num start ():
unsigned size = Iris::recv.data[0].h >> 16
unsigned offset = Iris::recv.data[0].h & 0xffff
unsigned cmd = Iris::recv.data[0].l
if !fat.find_idx (dir, &idx):
Iris::panic (0, "file not found")
Fat::File f
fat.get_dir_entry (dir, idx, &f)
switch cmd:
@ -600,26 +600,30 @@ Iris::Num start ():
break
case Iris::String::GET_CHARS:
//kdebug ("file chars requested\n")
unsigned mask = 1 << (fat.cluster_size_bits) - 1
f.load_cluster (num.l & ~mask)
unsigned mask = (1 << fat.cluster_size_bits) - 1
f.load_cluster (num.l & ~mask, num.l & mask)
unsigned n = num.l & mask & ~0xf
unsigned *dat = (unsigned *)(data + n)
reply.invoke (Iris::Num (dat[0], dat[1]), Iris::Num (dat[2], dat[3]))
break
case Iris::String::GET_ALIGN_BITS:
//kdebug ("file align requested\n")
reply.invoke (fat.cluster_size_bits)
reply.invoke (fat.cluster_size_bits <= PAGE_BITS ? fat.cluster_size_bits : PAGE_BITS)
break
case Iris::String::GET_BLOCK:
//kdebug ("file block requested\n")
unsigned mask = 1 << (fat.cluster_size_bits) - 1
unsigned mask = (1 << fat.cluster_size_bits) - 1
//kdebug ("mask = ")
//kdebug_num (mask)
//kdebug ("\n")
if offset > PAGE_SIZE:
//kdebug ("invalid offset requested\n")
break
if size + offset > PAGE_SIZE:
Iris::panic (size, "invalid size requested")
size = PAGE_SIZE - offset
for unsigned i = 0; i < size; i += 1 << fat.cluster_size_bits:
f.load_cluster ((num.l & ~mask) + i, arg, i + offset)
f.load_cluster ((num.l & ~mask) + i, num.l & mask, arg, i + offset)
reply.invoke ()
break
case Iris::WString::TRUNCATE:
@ -652,12 +656,18 @@ Iris::Num start ():
Iris::Cap reply = Iris::get_reply ()
dir = Iris::recv.protected_data.l
unsigned idx = Iris::recv.data[1].l
unsigned oldidx = idx
if !fat.find_idx (dir, &idx):
Iris::panic (0, "file not found")
kdebug_num (oldidx)
kdebug ("\n")
Iris::panic (1, "file not found")
Fat::File f
fat.get_dir_entry (dir, idx, &f)
Iris::Cap ret
if f.directory:
//kdebug ("dir provided: ")
//kdebug_num (f.first_cluster)
//kdebug ("\n")
ret = Iris::my_receiver.create_capability (Iris::Num (f.first_cluster, 0))
else:
ret = Iris::my_receiver.create_capability (Iris::Num (idx, dir))
@ -670,8 +680,11 @@ Iris::Num start ():
Iris::Cap reply = Iris::get_reply ()
dir = Iris::recv.protected_data.l
unsigned idx = Iris::recv.data[1].l
unsigned oldidx = idx
if !fat.find_idx (dir, &idx):
Iris::panic (0, "file not found")
kdebug_num (oldidx)
kdebug ("\n")
Iris::panic (2, "file not found")
unsigned type = Iris::recv.data[0].h
Fat::File f
fat.get_dir_entry (dir, idx, &f)

4
source/init.ccp
View File

@ -143,6 +143,7 @@ struct Program:
Iris::free_cap (cap)
thread = caps.get (__thread_num)
memory = caps.get (__memory_num)
Iris::free_cap (caps)
if priv:
thread.make_priv ()
thread.run ()
@ -471,7 +472,8 @@ Iris::Num start ():
if Iris::recv.protected_data.l == SYSREQ:
if Iris::recv.data[0].l & Iris::Keyboard::RELEASE:
continue
kdebug ("sysreq event\n")
kdebug ("sysreq event: rebooting device\n")
Iris::reboot ()
continue
Program *caller = (Program *)Iris::recv.protected_data.l
switch Iris::recv.data[0].l:

4
source/nand.ccp
View File

@ -173,8 +173,8 @@ static void read (unsigned a, char *buffer):
unsigned errs = (EMC_NFINTS & EMC_NFINTS_ERRCNT_MASK) >> EMC_NFINTS_ERRCNT_BIT
Iris::Num start ():
for unsigned i = 0; i < 30; ++i:
Iris::schedule ()
kdebug ("reading nand in 10 seconds\n")
Iris::sleep (10 * HZ)
map_emc ()
map_gpio ()

78
source/sd+mmc.ccp
View File

@ -24,7 +24,8 @@ class Mmc:
public:
enum Response_type:
NONE = MSC_CMDAT_RESPONSE_NONE
DATA = MSC_CMDAT_RESPONSE_R1 | MSC_CMDAT_DATA_EN
RD_DATA = MSC_CMDAT_RESPONSE_R1 | MSC_CMDAT_DATA_EN | MSC_CMDAT_READ
WR_DATA = MSC_CMDAT_RESPONSE_R1 | MSC_CMDAT_DATA_EN | MSC_CMDAT_WRITE
R1 = MSC_CMDAT_RESPONSE_R1
R1B = MSC_CMDAT_RESPONSE_R1 | MSC_CMDAT_BUSY
R2 = MSC_CMDAT_RESPONSE_R2
@ -68,6 +69,8 @@ class Mmc:
unsigned get_block_bits ():
return hc ? 9 : csd.read_bl_len > csd.write_bl_len ? csd.read_bl_len : csd.write_bl_len
void fill_page (Iris::Page page, Iris::Num address, unsigned size, unsigned offset)
void write_page (Iris::Page page, Iris::Num address, unsigned size, unsigned offset)
void wait_write ()
private:
unsigned rca
bool have_sdmem, have_io
@ -82,9 +85,11 @@ bool Mmc::send (unsigned cmd, unsigned arg, Response_type response_type, unsigne
MSC_CMD = cmd
MSC_ARG = arg
MSC_CMDAT = response_type
MSC_IMASK = ~MSC_IMASK_END_CMD_RES
Iris::register_interrupt (IRQ_MSC)
msc_start_op ()
Iris::wait_for_interrupt (IRQ_MSC)
MSC_IMASK = ~0
//kdebug ("cmd: ")
//kdebug_num (cmd)
unsigned stat = MSC_STAT
@ -178,6 +183,10 @@ bool Mmc::send (unsigned cmd, unsigned arg, Response_type response_type, unsigne
else if r >> 8 != cmd:
kdebug ("stat: ")
kdebug_num (MSC_STAT)
kdebug ("; response: ")
kdebug_num (r)
kdebug ("; cmd: ")
kdebug_num (cmd)
Iris::panic (r, "response doesn't match command")
r <<= 24
r |= MSC_RES << 8
@ -199,8 +208,8 @@ void Mmc::reset ():
Iris::my_memory.map (buffer_page, buffer)
// Reset all state, by faking a release event.
release ()
// Enable slow clock to msc.
CPM_MSCCDR = ~0
// Enable 25 MHz clock to msc.
CPM_MSCCDR = 13
cpm_start_msc ()
// Enable msc pins.
gpio_as_msc ()
@ -223,13 +232,13 @@ void Mmc::reset ():
Iris::sleep (1)
// Initialize registers.
MSC_CLKRT = MSC_CLKRT_CLK_RATE_DIV_128
MSC_CLKRT = MSC_CLKRT_CLK_RATE_DIV_1
MSC_RESTO = 64
MSC_RDTO = ~0
MSC_BLKLEN = 0x200
MSC_NOB = 0
MSC_IREG = ~0
MSC_IMASK = ~(MSC_IMASK_END_CMD_RES | MSC_IMASK_RXFIFO_RD_REQ | MSC_IMASK_TXFIFO_WR_REQ)
MSC_IMASK = ~(MSC_IMASK_END_CMD_RES | MSC_IMASK_RXFIFO_RD_REQ)
MSC_ARG = 0
// Start the clock.
@ -237,8 +246,8 @@ void Mmc::reset ():
// Set cards, if any, to idle.
send (0, 0, NONE)
// Reset SDIO device, if any.
send (52, 0x88000c08, R5)
// Reset SDIO device, if any. Don't do this, because it breaks for some reason.
//send (52, 0x88000c08, R5)
void Mmc::check_mmc ():
//kdebug ("checking mmc\n")
@ -378,8 +387,9 @@ void Mmc::fill_page (Iris::Page page, Iris::Num address, unsigned size, unsigned
//kdebug ("/")
//kdebug_num (size)
//kdebug (" ==> ")
if !send (17, p + a, DATA):
if !send (17, p + a, RD_DATA):
Iris::panic (0, "unable to request data")
MSC_IMASK = ~MSC_IMASK_RXFIFO_RD_REQ
for unsigned aa = 0; aa < 1 << 9; aa += 4:
while MSC_STAT & MSC_STAT_DATA_FIFO_EMPTY:
Iris::register_interrupt (IRQ_MSC)
@ -392,9 +402,48 @@ void Mmc::fill_page (Iris::Page page, Iris::Num address, unsigned size, unsigned
//kdebug (" ")
//kdebug_num (d >> (8 * i), 2)
//kdebug ("\n")
MSC_IMASK = ~0
MSC_IREG = MSC_IREG_DATA_TRAN_DONE
//kdebug ("done filling page\n")
void Mmc::write_page (Iris::Page page, Iris::Num address, unsigned size, unsigned offset):
if address.h:
Iris::panic (1, "page too high: not supported")
return
unsigned blockmask = ~((1 << 9) - 1)
unsigned p = address.l & blockmask
size &= blockmask
offset &= ~PAGE_MASK
if size + offset > PAGE_SIZE:
size = PAGE_SIZE - offset
page.share (buffer_page)
buffer_page.set_flags (Iris::Page::PAYING | Iris::Page::FRAME)
MSC_NOB = 1
MSC_BLKLEN = 1 << 9
for unsigned a = 0; a < size; a += 1 << 9:
//kdebug_num (a)
//kdebug ("/")
//kdebug_num (size)
//kdebug ("\n")
if !send (24, p + a, WR_DATA):
Iris::panic (0, "unable to send data")
MSC_IMASK = ~MSC_IMASK_TXFIFO_WR_REQ
for unsigned aa = 0; aa < 1 << 9; aa += 4:
while MSC_STAT & MSC_STAT_DATA_FIFO_FULL:
Iris::register_interrupt (IRQ_MSC)
Iris::wait_for_interrupt (IRQ_MSC)
MSC_TXFIFO = *(unsigned *)(buffer + a + aa + offset)
MSC_IMASK = ~0
MSC_IREG = MSC_IREG_DATA_TRAN_DONE
//kdebug ("done writing page\n")
void Mmc::wait_write ():
MSC_IMASK = ~MSC_IMASK_PRG_DONE
while !MSC_STAT & MSC_STAT_PRG_DONE:
Iris::register_interrupt (IRQ_MSC)
Iris::wait_for_interrupt (IRQ_MSC)
MSC_IREG = MSC_IREG_PRG_DONE
static Mmc mmc
enum types:
@ -464,10 +513,19 @@ Iris::Num start ():
Iris::free_cap (page)
Iris::free_cap (reply)
break
case Iris::WString::SET_CHARS:
case Iris::WString::SET_BLOCK:
// Fall through: don't support writing yet.
Iris::Cap reply = Iris::get_reply ()
Iris::Page page = Iris::get_arg ()
mmc.write_page (page, Iris::recv.data[1], Iris::recv.data[0].h >> 16, Iris::recv.data[0].h & 0xffff)
reply.invoke ()
Iris::free_cap (page)
Iris::free_cap (reply)
mmc.wait_write ()
break
case Iris::WString::SET_CHARS:
// Fall through: don't support writing single characters.
case Iris::WString::TRUNCATE:
// Fall through: don't support resizing.
default:
Iris::panic (0, "unexpected event for sd+mmc")
break