endif
ifeq ($(TARGET_BASE_ARCH), sh4)
VL_OBJS+= shix.o r2d.o sh7750.o sh7750_regnames.o tc58128.o
-VL_OBJS+= sh_timer.o ptimer.o
+VL_OBJS+= sh_timer.o ptimer.o sh_serial.o
endif
ifeq ($(TARGET_BASE_ARCH), m68k)
VL_OBJS+= an5206.o mcf5206.o ptimer.o mcf_uart.o mcf_intc.o mcf5208.o mcf_fec.o
#include "sh7750_regs.h"
#include "sh7750_regnames.h"
-typedef struct {
- uint8_t data[16];
- uint8_t length; /* Number of characters in the FIFO */
- uint8_t write_idx; /* Index of first character to write */
- uint8_t read_idx; /* Index of first character to read */
-} fifo;
-
#define NB_DEVICES 4
typedef struct SH7750State {
uint32_t periph_freq;
/* SDRAM controller */
uint16_t rfcr;
- /* First serial port */
- CharDriverState *serial1;
- uint8_t scscr1;
- uint8_t scsmr1;
- uint8_t scbrr1;
- uint8_t scssr1;
- uint8_t scssr1_read;
- uint8_t sctsr1;
- uint8_t sctsr1_loaded;
- uint8_t sctdr1;
- uint8_t scrdr1;
- /* Second serial port */
- CharDriverState *serial2;
- uint16_t sclsr2;
- uint16_t scscr2;
- uint16_t scfcr2;
- uint16_t scfsr2;
- uint16_t scsmr2;
- uint8_t scbrr2;
- fifo serial2_receive_fifo;
- fifo serial2_transmit_fifo;
/* IO ports */
uint16_t gpioic;
uint32_t pctra;
} SH7750State;
-/**********************************************************************
- First serial port
-**********************************************************************/
-
-static int serial1_can_receive(void *opaque)
-{
- SH7750State *s = opaque;
-
- return s->scscr1 & SH7750_SCSCR_RE;
-}
-
-static void serial1_receive_char(SH7750State * s, uint8_t c)
-{
- if (s->scssr1 & SH7750_SCSSR1_RDRF) {
- s->scssr1 |= SH7750_SCSSR1_ORER;
- return;
- }
-
- s->scrdr1 = c;
- s->scssr1 |= SH7750_SCSSR1_RDRF;
-}
-
-static void serial1_receive(void *opaque, const uint8_t * buf, int size)
-{
- SH7750State *s = opaque;
- int i;
-
- for (i = 0; i < size; i++) {
- serial1_receive_char(s, buf[i]);
- }
-}
-
-static void serial1_event(void *opaque, int event)
-{
- assert(0);
-}
-
-static void serial1_maybe_send(SH7750State * s)
-{
- uint8_t c;
-
- if (s->scssr1 & SH7750_SCSSR1_TDRE)
- return;
- c = s->sctdr1;
- s->scssr1 |= SH7750_SCSSR1_TDRE | SH7750_SCSSR1_TEND;
- if (s->scscr1 & SH7750_SCSCR_TIE) {
- fprintf(stderr, "interrupts for serial port 1 not implemented\n");
- assert(0);
- }
- /* XXXXX Check for errors in write */
- qemu_chr_write(s->serial1, &c, 1);
-}
-
-static void serial1_change_scssr1(SH7750State * s, uint8_t mem_value)
-{
- uint8_t new_flags;
-
- /* If transmit disable, TDRE and TEND stays up */
- if ((s->scscr1 & SH7750_SCSCR_TE) == 0) {
- mem_value |= SH7750_SCSSR1_TDRE | SH7750_SCSSR1_TEND;
- }
-
- /* Only clear bits which have been read before and do not set any bit
- in the flags */
- new_flags = s->scssr1 & ~s->scssr1_read; /* Preserve unread flags */
- new_flags &= mem_value | ~s->scssr1_read; /* Clear read flags */
-
- s->scssr1 = (new_flags & 0xf8) | (mem_value & 1);
- s->scssr1_read &= mem_value;
-
- /* If TDRE has been cleared, TEND will also be cleared */
- if ((s->scssr1 & SH7750_SCSSR1_TDRE) == 0) {
- s->scssr1 &= ~SH7750_SCSSR1_TEND;
- }
-
- /* Check for transmission to start */
- serial1_maybe_send(s);
-}
-
-static void serial1_update_parameters(SH7750State * s)
-{
- QEMUSerialSetParams ssp;
-
- if (s->scsmr1 & SH7750_SCSMR_CHR_7)
- ssp.data_bits = 7;
- else
- ssp.data_bits = 8;
- if (s->scsmr1 & SH7750_SCSMR_PE) {
- if (s->scsmr1 & SH7750_SCSMR_PM_ODD)
- ssp.parity = 'O';
- else
- ssp.parity = 'E';
- } else
- ssp.parity = 'N';
- if (s->scsmr1 & SH7750_SCSMR_STOP_2)
- ssp.stop_bits = 2;
- else
- ssp.stop_bits = 1;
- fprintf(stderr, "SCSMR1=%04x SCBRR1=%02x\n", s->scsmr1, s->scbrr1);
- ssp.speed = s->periph_freq /
- (32 * s->scbrr1 * (1 << (2 * (s->scsmr1 & 3)))) - 1;
- fprintf(stderr, "data bits=%d, stop bits=%d, parity=%c, speed=%d\n",
- ssp.data_bits, ssp.stop_bits, ssp.parity, ssp.speed);
- qemu_chr_ioctl(s->serial1, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
-}
-
-static void scscr1_changed(SH7750State * s)
-{
- if (s->scscr1 & (SH7750_SCSCR_TE | SH7750_SCSCR_RE)) {
- if (!s->serial1) {
- fprintf(stderr, "serial port 1 not bound to anything\n");
- assert(0);
- }
- serial1_update_parameters(s);
- }
- if ((s->scscr1 & SH7750_SCSCR_RE) == 0) {
- s->scssr1 |= SH7750_SCSSR1_TDRE;
- }
-}
-
-static void init_serial1(SH7750State * s, int serial_nb)
-{
- CharDriverState *chr;
-
- s->scssr1 = 0x84;
- chr = serial_hds[serial_nb];
- if (!chr) {
- fprintf(stderr,
- "no serial port associated to SH7750 first serial port\n");
- return;
- }
-
- s->serial1 = chr;
- qemu_chr_add_handlers(chr, serial1_can_receive,
- serial1_receive, serial1_event, s);
-}
-
-/**********************************************************************
- Second serial port
-**********************************************************************/
-
-static int serial2_can_receive(void *opaque)
-{
- SH7750State *s = opaque;
- static uint8_t max_fifo_size[] = { 15, 1, 4, 6, 8, 10, 12, 14 };
-
- return s->serial2_receive_fifo.length <
- max_fifo_size[(s->scfcr2 >> 9) & 7];
-}
-
-static void serial2_adjust_receive_flags(SH7750State * s)
-{
- static uint8_t max_fifo_size[] = { 1, 4, 8, 14 };
-
- /* XXXXX Add interrupt generation */
- if (s->serial2_receive_fifo.length >=
- max_fifo_size[(s->scfcr2 >> 7) & 3]) {
- s->scfsr2 |= SH7750_SCFSR2_RDF;
- s->scfsr2 &= ~SH7750_SCFSR2_DR;
- } else {
- s->scfsr2 &= ~SH7750_SCFSR2_RDF;
- if (s->serial2_receive_fifo.length > 0)
- s->scfsr2 |= SH7750_SCFSR2_DR;
- else
- s->scfsr2 &= ~SH7750_SCFSR2_DR;
- }
-}
-
-static void serial2_append_char(SH7750State * s, uint8_t c)
-{
- if (s->serial2_receive_fifo.length == 16) {
- /* Overflow */
- s->sclsr2 |= SH7750_SCLSR2_ORER;
- return;
- }
-
- s->serial2_receive_fifo.data[s->serial2_receive_fifo.write_idx++] = c;
- s->serial2_receive_fifo.length++;
- serial2_adjust_receive_flags(s);
-}
-
-static void serial2_receive(void *opaque, const uint8_t * buf, int size)
-{
- SH7750State *s = opaque;
- int i;
-
- for (i = 0; i < size; i++)
- serial2_append_char(s, buf[i]);
-}
-
-static void serial2_event(void *opaque, int event)
-{
- /* XXXXX */
- assert(0);
-}
-
-static void serial2_update_parameters(SH7750State * s)
-{
- QEMUSerialSetParams ssp;
-
- if (s->scsmr2 & SH7750_SCSMR_CHR_7)
- ssp.data_bits = 7;
- else
- ssp.data_bits = 8;
- if (s->scsmr2 & SH7750_SCSMR_PE) {
- if (s->scsmr2 & SH7750_SCSMR_PM_ODD)
- ssp.parity = 'O';
- else
- ssp.parity = 'E';
- } else
- ssp.parity = 'N';
- if (s->scsmr2 & SH7750_SCSMR_STOP_2)
- ssp.stop_bits = 2;
- else
- ssp.stop_bits = 1;
- fprintf(stderr, "SCSMR2=%04x SCBRR2=%02x\n", s->scsmr2, s->scbrr2);
- ssp.speed = s->periph_freq /
- (32 * s->scbrr2 * (1 << (2 * (s->scsmr2 & 3)))) - 1;
- fprintf(stderr, "data bits=%d, stop bits=%d, parity=%c, speed=%d\n",
- ssp.data_bits, ssp.stop_bits, ssp.parity, ssp.speed);
- qemu_chr_ioctl(s->serial2, CHR_IOCTL_SERIAL_SET_PARAMS, &ssp);
-}
-
-static void scscr2_changed(SH7750State * s)
-{
- if (s->scscr2 & (SH7750_SCSCR_TE | SH7750_SCSCR_RE)) {
- if (!s->serial2) {
- fprintf(stderr, "serial port 2 not bound to anything\n");
- assert(0);
- }
- serial2_update_parameters(s);
- }
-}
-
-static void init_serial2(SH7750State * s, int serial_nb)
-{
- CharDriverState *chr;
-
- s->scfsr2 = 0x0060;
-
- chr = serial_hds[serial_nb];
- if (!chr) {
- fprintf(stderr,
- "no serial port associated to SH7750 second serial port\n");
- return;
- }
-
- s->serial2 = chr;
- qemu_chr_add_handlers(chr, serial2_can_receive,
- serial2_receive, serial1_event, s);
-}
-
-static void init_serial_ports(SH7750State * s)
-{
- init_serial1(s, 0);
- init_serial2(s, 1);
-}
/**********************************************************************
I/O ports
static uint32_t sh7750_mem_readb(void *opaque, target_phys_addr_t addr)
{
- SH7750State *s = opaque;
- uint8_t r;
-
switch (addr) {
- case SH7750_SCSSR1_A7:
- r = s->scssr1;
- s->scssr1_read |= r;
- return s->scssr1;
- case SH7750_SCRDR1_A7:
- s->scssr1 &= ~SH7750_SCSSR1_RDRF;
- return s->scrdr1;
default:
error_access("byte read", addr);
assert(0);
static uint32_t sh7750_mem_readw(void *opaque, target_phys_addr_t addr)
{
SH7750State *s = opaque;
- uint16_t r;
switch (addr) {
case SH7750_RFCR_A7:
fprintf(stderr,
"Read access to refresh count register, incrementing\n");
return s->rfcr++;
- case SH7750_SCLSR2_A7:
- /* Read and clear overflow bit */
- r = s->sclsr2;
- s->sclsr2 = 0;
- return r;
- case SH7750_SCSFR2_A7:
- return s->scfsr2;
case SH7750_PDTRA_A7:
return porta_lines(s);
case SH7750_PDTRB_A7:
static void sh7750_mem_writeb(void *opaque, target_phys_addr_t addr,
uint32_t mem_value)
{
- SH7750State *s = opaque;
-
switch (addr) {
/* PRECHARGE ? XXXXX */
case SH7750_PRECHARGE0_A7:
case SH7750_PRECHARGE1_A7:
ignore_access("byte write", addr);
return;
- case SH7750_SCBRR2_A7:
- s->scbrr2 = mem_value;
- return;
- case SH7750_SCSCR1_A7:
- s->scscr1 = mem_value;
- scscr1_changed(s);
- return;
- case SH7750_SCSMR1_A7:
- s->scsmr1 = mem_value;
- return;
- case SH7750_SCBRR1_A7:
- s->scbrr1 = mem_value;
- return;
- case SH7750_SCTDR1_A7:
- s->scssr1 &= ~SH7750_SCSSR1_TEND;
- s->sctdr1 = mem_value;
- return;
- case SH7750_SCSSR1_A7:
- serial1_change_scssr1(s, mem_value);
- return;
default:
error_access("byte write", addr);
assert(0);
switch (addr) {
/* SDRAM controller */
- case SH7750_SCBRR1_A7:
- case SH7750_SCBRR2_A7:
case SH7750_BCR2_A7:
case SH7750_BCR3_A7:
case SH7750_RTCOR_A7:
fprintf(stderr, "Write access to refresh count register\n");
s->rfcr = mem_value;
return;
- case SH7750_SCLSR2_A7:
- s->sclsr2 = mem_value;
- return;
- case SH7750_SCSCR2_A7:
- s->scscr2 = mem_value;
- scscr2_changed(s);
- return;
- case SH7750_SCFCR2_A7:
- s->scfcr2 = mem_value;
- return;
- case SH7750_SCSMR2_A7:
- s->scsmr2 = mem_value;
- return;
case SH7750_GPIOIC_A7:
s->gpioic = mem_value;
if (mem_value != 0) {
sh7750_mem_read,
sh7750_mem_write, s);
cpu_register_physical_memory(0x1c000000, 0x04000000, sh7750_io_memory);
- init_serial_ports(s);
+
+ sh_serial_init(0x1fe00000, 0, s->periph_freq, serial_hds[0]);
+ sh_serial_init(0x1fe80000, SH_SERIAL_FEAT_SCIF,
+ s->periph_freq, serial_hds[1]);
tmu012_init(0x1fd80000,
TMU012_FEAT_TOCR | TMU012_FEAT_3CHAN | TMU012_FEAT_EXTCLK,
REGNAME(SH7750_CHCR2_A7)
REGNAME(SH7750_CHCR3_A7)
REGNAME(SH7750_DMAOR_A7)
- REGNAME(SH7750_SCRDR1_A7)
- REGNAME(SH7750_SCRDR2_A7)
- REGNAME(SH7750_SCTDR1_A7)
- REGNAME(SH7750_SCTDR2_A7)
- REGNAME(SH7750_SCSMR1_A7)
- REGNAME(SH7750_SCSMR2_A7)
- REGNAME(SH7750_SCSCR1_A7)
- REGNAME(SH7750_SCSCR2_A7)
- REGNAME(SH7750_SCSSR1_A7)
- REGNAME(SH7750_SCSFR2_A7)
- REGNAME(SH7750_SCSPTR1_A7)
- REGNAME(SH7750_SCSPTR2_A7)
- REGNAME(SH7750_SCBRR1_A7)
- REGNAME(SH7750_SCBRR2_A7)
- REGNAME(SH7750_SCFCR2_A7)
- REGNAME(SH7750_SCFDR2_A7)
- REGNAME(SH7750_SCLSR2_A7)
- REGNAME(SH7750_SCSCMR1_A7)
REGNAME(SH7750_PCTRA_A7)
REGNAME(SH7750_PDTRA_A7)
REGNAME(SH7750_PCTRB_A7)
#define SH7750_DMAOR_NMIF 0x00000002 /* NMI Flag */
#define SH7750_DMAOR_DME 0x00000001 /* DMAC Master Enable */
-/*
- * Serial Communication Interface - SCI
- * Serial Communication Interface with FIFO - SCIF
- */
-/* SCI Receive Data Register (byte, read-only) - SCRDR1, SCFRDR2 */
-#define SH7750_SCRDR_REGOFS(n) ((n) == 1 ? 0xE00014 : 0xE80014) /* offset */
-#define SH7750_SCRDR(n) SH7750_P4_REG32(SH7750_SCRDR_REGOFS(n))
-#define SH7750_SCRDR1 SH7750_SCRDR(1)
-#define SH7750_SCRDR2 SH7750_SCRDR(2)
-#define SH7750_SCRDR_A7(n) SH7750_A7_REG32(SH7750_SCRDR_REGOFS(n))
-#define SH7750_SCRDR1_A7 SH7750_SCRDR_A7(1)
-#define SH7750_SCRDR2_A7 SH7750_SCRDR_A7(2)
-
-/* SCI Transmit Data Register (byte) - SCTDR1, SCFTDR2 */
-#define SH7750_SCTDR_REGOFS(n) ((n) == 1 ? 0xE0000C : 0xE8000C) /* offset */
-#define SH7750_SCTDR(n) SH7750_P4_REG32(SH7750_SCTDR_REGOFS(n))
-#define SH7750_SCTDR1 SH7750_SCTDR(1)
-#define SH7750_SCTDR2 SH7750_SCTDR(2)
-#define SH7750_SCTDR_A7(n) SH7750_A7_REG32(SH7750_SCTDR_REGOFS(n))
-#define SH7750_SCTDR1_A7 SH7750_SCTDR_A7(1)
-#define SH7750_SCTDR2_A7 SH7750_SCTDR_A7(2)
-
-/* SCI Serial Mode Register - SCSMR1(byte), SCSMR2(half) */
-#define SH7750_SCSMR_REGOFS(n) ((n) == 1 ? 0xE00000 : 0xE80000) /* offset */
-#define SH7750_SCSMR(n) SH7750_P4_REG32(SH7750_SCSMR_REGOFS(n))
-#define SH7750_SCSMR1 SH7750_SCSMR(1)
-#define SH7750_SCSMR2 SH7750_SCSMR(2)
-#define SH7750_SCSMR_A7(n) SH7750_A7_REG32(SH7750_SCSMR_REGOFS(n))
-#define SH7750_SCSMR1_A7 SH7750_SCSMR_A7(1)
-#define SH7750_SCSMR2_A7 SH7750_SCSMR_A7(2)
-
-#define SH7750_SCSMR1_CA 0x80 /* Communication Mode (C/A\): */
-#define SH7750_SCSMR1_CA_ASYNC 0x00 /* Asynchronous Mode */
-#define SH7750_SCSMR1_CA_SYNC 0x80 /* Synchronous Mode */
-#define SH7750_SCSMR_CHR 0x40 /* Character Length: */
-#define SH7750_SCSMR_CHR_8 0x00 /* 8-bit data */
-#define SH7750_SCSMR_CHR_7 0x40 /* 7-bit data */
-#define SH7750_SCSMR_PE 0x20 /* Parity Enable */
-#define SH7750_SCSMR_PM 0x10 /* Parity Mode: */
-#define SH7750_SCSMR_PM_EVEN 0x00 /* Even Parity */
-#define SH7750_SCSMR_PM_ODD 0x10 /* Odd Parity */
-#define SH7750_SCSMR_STOP 0x08 /* Stop Bit Length: */
-#define SH7750_SCSMR_STOP_1 0x00 /* 1 stop bit */
-#define SH7750_SCSMR_STOP_2 0x08 /* 2 stop bit */
-#define SH7750_SCSMR1_MP 0x04 /* Multiprocessor Mode */
-#define SH7750_SCSMR_CKS 0x03 /* Clock Select */
-#define SH7750_SCSMR_CKS_S 0
-#define SH7750_SCSMR_CKS_DIV1 0x00 /* Periph clock */
-#define SH7750_SCSMR_CKS_DIV4 0x01 /* Periph clock / 4 */
-#define SH7750_SCSMR_CKS_DIV16 0x02 /* Periph clock / 16 */
-#define SH7750_SCSMR_CKS_DIV64 0x03 /* Periph clock / 64 */
-
-/* SCI Serial Control Register - SCSCR1(byte), SCSCR2(half) */
-#define SH7750_SCSCR_REGOFS(n) ((n) == 1 ? 0xE00008 : 0xE80008) /* offset */
-#define SH7750_SCSCR(n) SH7750_P4_REG32(SH7750_SCSCR_REGOFS(n))
-#define SH7750_SCSCR1 SH7750_SCSCR(1)
-#define SH7750_SCSCR2 SH7750_SCSCR(2)
-#define SH7750_SCSCR_A7(n) SH7750_A7_REG32(SH7750_SCSCR_REGOFS(n))
-#define SH7750_SCSCR1_A7 SH7750_SCSCR_A7(1)
-#define SH7750_SCSCR2_A7 SH7750_SCSCR_A7(2)
-
-#define SH7750_SCSCR_TIE 0x80 /* Transmit Interrupt Enable */
-#define SH7750_SCSCR_RIE 0x40 /* Receive Interrupt Enable */
-#define SH7750_SCSCR_TE 0x20 /* Transmit Enable */
-#define SH7750_SCSCR_RE 0x10 /* Receive Enable */
-#define SH7750_SCSCR1_MPIE 0x08 /* Multiprocessor Interrupt Enable */
-#define SH7750_SCSCR2_REIE 0x08 /* Receive Error Interrupt Enable */
-#define SH7750_SCSCR1_TEIE 0x04 /* Transmit End Interrupt Enable */
-#define SH7750_SCSCR1_CKE 0x03 /* Clock Enable: */
-#define SH7750_SCSCR_CKE_INTCLK 0x00 /* Use Internal Clock */
-#define SH7750_SCSCR_CKE_EXTCLK 0x02 /* Use External Clock from SCK */
-#define SH7750_SCSCR1_CKE_ASYNC_SCK_CLKOUT 0x01 /* Use SCK as a clock output
- in asynchronous mode */
-
-/* SCI Serial Status Register - SCSSR1(byte), SCSFR2(half) */
-#define SH7750_SCSSR_REGOFS(n) ((n) == 1 ? 0xE00010 : 0xE80010) /* offset */
-#define SH7750_SCSSR(n) SH7750_P4_REG32(SH7750_SCSSR_REGOFS(n))
-#define SH7750_SCSSR1 SH7750_SCSSR(1)
-#define SH7750_SCSFR2 SH7750_SCSSR(2)
-#define SH7750_SCSSR_A7(n) SH7750_A7_REG32(SH7750_SCSSR_REGOFS(n))
-#define SH7750_SCSSR1_A7 SH7750_SCSSR_A7(1)
-#define SH7750_SCSFR2_A7 SH7750_SCSSR_A7(2)
-
-#define SH7750_SCSSR1_TDRE 0x80 /* Transmit Data Register Empty */
-#define SH7750_SCSSR1_RDRF 0x40 /* Receive Data Register Full */
-#define SH7750_SCSSR1_ORER 0x20 /* Overrun Error */
-#define SH7750_SCSSR1_FER 0x10 /* Framing Error */
-#define SH7750_SCSSR1_PER 0x08 /* Parity Error */
-#define SH7750_SCSSR1_TEND 0x04 /* Transmit End */
-#define SH7750_SCSSR1_MPB 0x02 /* Multiprocessor Bit */
-#define SH7750_SCSSR1_MPBT 0x01 /* Multiprocessor Bit Transfer */
-
-#define SH7750_SCFSR2_PERN 0xF000 /* Number of Parity Errors */
-#define SH7750_SCFSR2_PERN_S 12
-#define SH7750_SCFSR2_FERN 0x0F00 /* Number of Framing Errors */
-#define SH7750_SCFSR2_FERN_S 8
-#define SH7750_SCFSR2_ER 0x0080 /* Receive Error */
-#define SH7750_SCFSR2_TEND 0x0040 /* Transmit End */
-#define SH7750_SCFSR2_TDFE 0x0020 /* Transmit FIFO Data Empty */
-#define SH7750_SCFSR2_BRK 0x0010 /* Break Detect */
-#define SH7750_SCFSR2_FER 0x0008 /* Framing Error */
-#define SH7750_SCFSR2_PER 0x0004 /* Parity Error */
-#define SH7750_SCFSR2_RDF 0x0002 /* Receive FIFO Data Full */
-#define SH7750_SCFSR2_DR 0x0001 /* Receive Data Ready */
-
-/* SCI Serial Port Register - SCSPTR1(byte) */
-#define SH7750_SCSPTR1_REGOFS 0xE0001C /* offset */
-#define SH7750_SCSPTR1 SH7750_P4_REG32(SH7750_SCSPTR1_REGOFS)
-#define SH7750_SCSPTR1_A7 SH7750_A7_REG32(SH7750_SCSPTR1_REGOFS)
-
-#define SH7750_SCSPTR1_EIO 0x80 /* Error Interrupt Only */
-#define SH7750_SCSPTR1_SPB1IO 0x08 /* 1: Output SPB1DT bit to SCK pin */
-#define SH7750_SCSPTR1_SPB1DT 0x04 /* Serial Port Clock Port Data */
-#define SH7750_SCSPTR1_SPB0IO 0x02 /* 1: Output SPB0DT bit to TxD pin */
-#define SH7750_SCSPTR1_SPB0DT 0x01 /* Serial Port Break Data */
-
-/* SCIF Serial Port Register - SCSPTR2(half) */
-#define SH7750_SCSPTR2_REGOFS 0xE80020 /* offset */
-#define SH7750_SCSPTR2 SH7750_P4_REG32(SH7750_SCSPTR2_REGOFS)
-#define SH7750_SCSPTR2_A7 SH7750_A7_REG32(SH7750_SCSPTR2_REGOFS)
-
-#define SH7750_SCSPTR2_RTSIO 0x80 /* 1: Output RTSDT bit to RTS2\ pin */
-#define SH7750_SCSPTR2_RTSDT 0x40 /* RTS Port Data */
-#define SH7750_SCSPTR2_CTSIO 0x20 /* 1: Output CTSDT bit to CTS2\ pin */
-#define SH7750_SCSPTR2_CTSDT 0x10 /* CTS Port Data */
-#define SH7750_SCSPTR2_SPB2IO 0x02 /* 1: Output SPBDT bit to TxD2 pin */
-#define SH7750_SCSPTR2_SPB2DT 0x01 /* Serial Port Break Data */
-
-/* SCI Bit Rate Register - SCBRR1(byte), SCBRR2(byte) */
-#define SH7750_SCBRR_REGOFS(n) ((n) == 1 ? 0xE00004 : 0xE80004) /* offset */
-#define SH7750_SCBRR(n) SH7750_P4_REG32(SH7750_SCBRR_REGOFS(n))
-#define SH7750_SCBRR1 SH7750_SCBRR_P4(1)
-#define SH7750_SCBRR2 SH7750_SCBRR_P4(2)
-#define SH7750_SCBRR_A7(n) SH7750_A7_REG32(SH7750_SCBRR_REGOFS(n))
-#define SH7750_SCBRR1_A7 SH7750_SCBRR_A7(1)
-#define SH7750_SCBRR2_A7 SH7750_SCBRR_A7(2)
-
-/* SCIF FIFO Control Register - SCFCR2(half) */
-#define SH7750_SCFCR2_REGOFS 0xE80018 /* offset */
-#define SH7750_SCFCR2 SH7750_P4_REG32(SH7750_SCFCR2_REGOFS)
-#define SH7750_SCFCR2_A7 SH7750_A7_REG32(SH7750_SCFCR2_REGOFS)
-
-#define SH7750_SCFCR2_RSTRG 0x700 /* RTS2\ Output Active Trigger; RTS2\
- signal goes to high level when the
- number of received data stored in
- FIFO exceeds the trigger number */
-#define SH7750_SCFCR2_RSTRG_15 0x000 /* 15 bytes */
-#define SH7750_SCFCR2_RSTRG_1 0x000 /* 1 byte */
-#define SH7750_SCFCR2_RSTRG_4 0x000 /* 4 bytes */
-#define SH7750_SCFCR2_RSTRG_6 0x000 /* 6 bytes */
-#define SH7750_SCFCR2_RSTRG_8 0x000 /* 8 bytes */
-#define SH7750_SCFCR2_RSTRG_10 0x000 /* 10 bytes */
-#define SH7750_SCFCR2_RSTRG_14 0x000 /* 14 bytes */
-
-#define SH7750_SCFCR2_RTRG 0x0C0 /* Receive FIFO Data Number Trigger,
- Receive Data Full (RDF) Flag sets
- when number of receive data bytes is
- equal or greater than the trigger
- number */
-#define SH7750_SCFCR2_RTRG_1 0x000 /* 1 byte */
-#define SH7750_SCFCR2_RTRG_4 0x040 /* 4 bytes */
-#define SH7750_SCFCR2_RTRG_8 0x080 /* 8 bytes */
-#define SH7750_SCFCR2_RTRG_14 0x0C0 /* 14 bytes */
-
-#define SH7750_SCFCR2_TTRG 0x030 /* Transmit FIFO Data Number Trigger,
- Transmit FIFO Data Register Empty (TDFE)
- flag sets when the number of remaining
- transmit data bytes is equal or less
- than the trigger number */
-#define SH7750_SCFCR2_TTRG_8 0x000 /* 8 bytes */
-#define SH7750_SCFCR2_TTRG_4 0x010 /* 4 bytes */
-#define SH7750_SCFCR2_TTRG_2 0x020 /* 2 bytes */
-#define SH7750_SCFCR2_TTRG_1 0x030 /* 1 byte */
-
-#define SH7750_SCFCR2_MCE 0x008 /* Modem Control Enable */
-#define SH7750_SCFCR2_TFRST 0x004 /* Transmit FIFO Data Register Reset,
- invalidates the transmit data in the
- transmit FIFO */
-#define SH7750_SCFCR2_RFRST 0x002 /* Receive FIFO Data Register Reset,
- invalidates the receive data in the
- receive FIFO data register and resets
- it to the empty state */
-#define SH7750_SCFCR2_LOOP 0x001 /* Loopback Test */
-
-/* SCIF FIFO Data Count Register - SCFDR2(half, read-only) */
-#define SH7750_SCFDR2_REGOFS 0xE8001C /* offset */
-#define SH7750_SCFDR2 SH7750_P4_REG32(SH7750_SCFDR2_REGOFS)
-#define SH7750_SCFDR2_A7 SH7750_A7_REG32(SH7750_SCFDR2_REGOFS)
-
-#define SH7750_SCFDR2_T 0x1F00 /* Number of untransmitted data bytes
- in transmit FIFO */
-#define SH7750_SCFDR2_T_S 8
-#define SH7750_SCFDR2_R 0x001F /* Number of received data bytes in
- receive FIFO */
-#define SH7750_SCFDR2_R_S 0
-
-/* SCIF Line Status Register - SCLSR2(half, read-only) */
-#define SH7750_SCLSR2_REGOFS 0xE80024 /* offset */
-#define SH7750_SCLSR2 SH7750_P4_REG32(SH7750_SCLSR2_REGOFS)
-#define SH7750_SCLSR2_A7 SH7750_A7_REG32(SH7750_SCLSR2_REGOFS)
-
-#define SH7750_SCLSR2_ORER 0x0001 /* Overrun Error */
-
-/*
- * SCI-based Smart Card Interface
- */
-/* Smart Card Mode Register - SCSCMR1(byte) */
-#define SH7750_SCSCMR1_REGOFS 0xE00018 /* offset */
-#define SH7750_SCSCMR1 SH7750_P4_REG32(SH7750_SCSCMR1_REGOFS)
-#define SH7750_SCSCMR1_A7 SH7750_A7_REG32(SH7750_SCSCMR1_REGOFS)
-
-#define SH7750_SCSCMR1_SDIR 0x08 /* Smart Card Data Transfer Direction: */
-#define SH7750_SCSCMR1_SDIR_LSBF 0x00 /* LSB-first */
-#define SH7750_SCSCMR1_SDIR_MSBF 0x08 /* MSB-first */
-
-#define SH7750_SCSCMR1_SINV 0x04 /* Smart Card Data Inversion */
-#define SH7750_SCSCMR1_SMIF 0x01 /* Smart Card Interface Mode Select */
-
-/* Smart-card specific bits in other registers */
-/* SCSMR1: */
-#define SH7750_SCSMR1_GSM 0x80 /* GSM mode select */
-
-/* SCSSR1: */
-#define SH7750_SCSSR1_ERS 0x10 /* Error Signal Status */
-
/*
* I/O Ports
*/
--- /dev/null
+/*
+ * QEMU SCI/SCIF serial port emulation
+ *
+ * Copyright (c) 2007 Magnus Damm
+ *
+ * Based on serial.c - QEMU 16450 UART emulation
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "vl.h"
+#include <assert.h>
+
+//#define DEBUG_SERIAL
+
+#define SH_SERIAL_FLAG_TEND (1 << 0)
+#define SH_SERIAL_FLAG_TDE (1 << 1)
+#define SH_SERIAL_FLAG_RDF (1 << 2)
+#define SH_SERIAL_FLAG_BRK (1 << 3)
+#define SH_SERIAL_FLAG_DR (1 << 4)
+
+typedef struct {
+ uint8_t smr;
+ uint8_t brr;
+ uint8_t scr;
+ uint8_t dr; /* ftdr / tdr */
+ uint8_t sr; /* fsr / ssr */
+ uint16_t fcr;
+ uint8_t sptr;
+
+ uint8_t rx_fifo[16]; /* frdr / rdr */
+ uint8_t rx_cnt;
+
+ target_phys_addr_t base;
+ int freq;
+ int feat;
+ int flags;
+
+ CharDriverState *chr;
+} sh_serial_state;
+
+static void sh_serial_ioport_write(void *opaque, uint32_t offs, uint32_t val)
+{
+ sh_serial_state *s = opaque;
+ unsigned char ch;
+
+#ifdef DEBUG_SERIAL
+ printf("sh_serial: write base=0x%08lx offs=0x%02x val=0x%02x\n",
+ (unsigned long) s->base, offs, val);
+#endif
+ switch(offs) {
+ case 0x00: /* SMR */
+ s->smr = val & ((s->feat & SH_SERIAL_FEAT_SCIF) ? 0x7b : 0xff);
+ return;
+ case 0x04: /* BRR */
+ s->brr = val;
+ return;
+ case 0x08: /* SCR */
+ s->scr = val & ((s->feat & SH_SERIAL_FEAT_SCIF) ? 0xfb : 0xff);
+ if (!(val & (1 << 5)))
+ s->flags |= SH_SERIAL_FLAG_TEND;
+ return;
+ case 0x0c: /* FTDR / TDR */
+ if (s->chr) {
+ ch = val;
+ qemu_chr_write(s->chr, &ch, 1);
+ }
+ s->dr = val;
+ s->flags &= ~SH_SERIAL_FLAG_TDE;
+ return;
+#if 0
+ case 0x14: /* FRDR / RDR */
+ ret = 0;
+ break;
+#endif
+ }
+ if (s->feat & SH_SERIAL_FEAT_SCIF) {
+ switch(offs) {
+ case 0x10: /* FSR */
+ if (!(val & (1 << 6)))
+ s->flags &= ~SH_SERIAL_FLAG_TEND;
+ if (!(val & (1 << 5)))
+ s->flags &= ~SH_SERIAL_FLAG_TDE;
+ if (!(val & (1 << 4)))
+ s->flags &= ~SH_SERIAL_FLAG_BRK;
+ if (!(val & (1 << 1)))
+ s->flags &= ~SH_SERIAL_FLAG_RDF;
+ if (!(val & (1 << 0)))
+ s->flags &= ~SH_SERIAL_FLAG_DR;
+ return;
+ case 0x18: /* FCR */
+ s->fcr = val;
+ return;
+ case 0x20: /* SPTR */
+ s->sptr = val;
+ return;
+ case 0x24: /* LSR */
+ return;
+ }
+ }
+ else {
+#if 0
+ switch(offs) {
+ case 0x0c:
+ ret = s->dr;
+ break;
+ case 0x10:
+ ret = 0;
+ break;
+ case 0x1c:
+ ret = s->sptr;
+ break;
+ }
+#endif
+ }
+
+ fprintf(stderr, "sh_serial: unsupported write to 0x%02x\n", offs);
+ assert(0);
+}
+
+static uint32_t sh_serial_ioport_read(void *opaque, uint32_t offs)
+{
+ sh_serial_state *s = opaque;
+ uint32_t ret = ~0;
+
+#if 0
+ switch(offs) {
+ case 0x00:
+ ret = s->smr;
+ break;
+ case 0x04:
+ ret = s->brr;
+ break;
+ case 0x08:
+ ret = s->scr;
+ break;
+ case 0x14:
+ ret = 0;
+ break;
+ }
+#endif
+ if (s->feat & SH_SERIAL_FEAT_SCIF) {
+ switch(offs) {
+ case 0x10: /* FSR */
+ ret = 0;
+ if (s->flags & SH_SERIAL_FLAG_TEND)
+ ret |= (1 << 6);
+ if (s->flags & SH_SERIAL_FLAG_TDE)
+ ret |= (1 << 5);
+ if (s->flags & SH_SERIAL_FLAG_BRK)
+ ret |= (1 << 4);
+ if (s->flags & SH_SERIAL_FLAG_RDF)
+ ret |= (1 << 1);
+ if (s->flags & SH_SERIAL_FLAG_DR)
+ ret |= (1 << 0);
+
+ if (s->scr & (1 << 5))
+ s->flags |= SH_SERIAL_FLAG_TDE | SH_SERIAL_FLAG_TEND;
+
+ break;
+#if 0
+ case 0x18:
+ ret = s->fcr;
+ break;
+#endif
+ case 0x1c:
+ ret = s->rx_cnt;
+ break;
+ case 0x20:
+ ret = s->sptr;
+ break;
+ case 0x24:
+ ret = 0;
+ break;
+ }
+ }
+ else {
+#if 0
+ switch(offs) {
+ case 0x0c:
+ ret = s->dr;
+ break;
+ case 0x10:
+ ret = 0;
+ break;
+ case 0x1c:
+ ret = s->sptr;
+ break;
+ }
+#endif
+ }
+#ifdef DEBUG_SERIAL
+ printf("sh_serial: read base=0x%08lx offs=0x%02x val=0x%x\n",
+ (unsigned long) s->base, offs, ret);
+#endif
+
+ if (ret & ~((1 << 16) - 1)) {
+ fprintf(stderr, "sh_serial: unsupported read from 0x%02x\n", offs);
+ assert(0);
+ }
+
+ return ret;
+}
+
+static int sh_serial_can_receive(sh_serial_state *s)
+{
+ return 0;
+}
+
+static void sh_serial_receive_byte(sh_serial_state *s, int ch)
+{
+}
+
+static void sh_serial_receive_break(sh_serial_state *s)
+{
+}
+
+static int sh_serial_can_receive1(void *opaque)
+{
+ sh_serial_state *s = opaque;
+ return sh_serial_can_receive(s);
+}
+
+static void sh_serial_receive1(void *opaque, const uint8_t *buf, int size)
+{
+ sh_serial_state *s = opaque;
+ sh_serial_receive_byte(s, buf[0]);
+}
+
+static void sh_serial_event(void *opaque, int event)
+{
+ sh_serial_state *s = opaque;
+ if (event == CHR_EVENT_BREAK)
+ sh_serial_receive_break(s);
+}
+
+uint32_t sh_serial_read (void *opaque, target_phys_addr_t addr)
+{
+ sh_serial_state *s = opaque;
+ return sh_serial_ioport_read(s, addr - s->base);
+}
+
+void sh_serial_write (void *opaque,
+ target_phys_addr_t addr, uint32_t value)
+{
+ sh_serial_state *s = opaque;
+ sh_serial_ioport_write(s, addr - s->base, value);
+}
+
+static CPUReadMemoryFunc *sh_serial_readfn[] = {
+ &sh_serial_read,
+ &sh_serial_read,
+ &sh_serial_read,
+};
+
+static CPUWriteMemoryFunc *sh_serial_writefn[] = {
+ &sh_serial_write,
+ &sh_serial_write,
+ &sh_serial_write,
+};
+
+void sh_serial_init (target_phys_addr_t base, int feat,
+ uint32_t freq, CharDriverState *chr)
+{
+ sh_serial_state *s;
+ int s_io_memory;
+
+ s = qemu_mallocz(sizeof(sh_serial_state));
+ if (!s)
+ return;
+
+ s->base = base;
+ s->feat = feat;
+ s->flags = SH_SERIAL_FLAG_TEND | SH_SERIAL_FLAG_TDE;
+
+ s->smr = 0;
+ s->brr = 0xff;
+ s->scr = 0;
+ s->sptr = 0;
+
+ if (feat & SH_SERIAL_FEAT_SCIF) {
+ s->fcr = 0;
+ }
+ else {
+ s->dr = 0xff;
+ }
+
+ s->rx_cnt = 0;
+
+ s_io_memory = cpu_register_io_memory(0, sh_serial_readfn,
+ sh_serial_writefn, s);
+ cpu_register_physical_memory(base, 0x28, s_io_memory);
+
+ s->chr = chr;
+
+ if (chr)
+ qemu_chr_add_handlers(chr, sh_serial_can_receive1, sh_serial_receive1,
+ sh_serial_event, s);
+}
#define TMU012_FEAT_EXTCLK (1 << 2)
void tmu012_init(uint32_t base, int feat, uint32_t freq);
+/* sh_serial.c */
+#define SH_SERIAL_FEAT_SCIF (1 << 0)
+void sh_serial_init (target_phys_addr_t base, int feat,
+ uint32_t freq, CharDriverState *chr);
+
/* tc58128.c */
int tc58128_init(struct SH7750State *s, char *zone1, char *zone2);
projects / qemu.git / commitdiff