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author | Jake Burkholder <jake@FreeBSD.org> | 2003-01-08 23:36:16 +0000 |
---|---|---|
committer | Jake Burkholder <jake@FreeBSD.org> | 2003-01-08 23:36:16 +0000 |
commit | 6bfa8a2ef2587b7e731a576a69a109f862372880 (patch) | |
tree | 63e85b7f80168ab4b8310efcdea6dba596081110 /sys/dev/zs | |
parent | 291871da9e186d9a93eff84b7f6cb8bd94fc69bc (diff) | |
download | src-6bfa8a2ef2587b7e731a576a69a109f862372880.tar.gz src-6bfa8a2ef2587b7e731a576a69a109f862372880.zip |
Split this into bus specific front end(s), so that it can be used by ppc.
This abstracts out all the differences I could see between the netbsd
sparc64 and macppc zs drivers. In particular the offsets of the csr and
data registers are different, so we use a separate bus handle for each and
use bus_space_subregion to add the bus specific offsets.
Requested by: benno
Notes
Notes:
svn path=/head/; revision=108971
Diffstat (limited to 'sys/dev/zs')
-rw-r--r-- | sys/dev/zs/z8530reg.h | 10 | ||||
-rw-r--r-- | sys/dev/zs/z8530var.h | 77 | ||||
-rw-r--r-- | sys/dev/zs/zs.c | 309 | ||||
-rw-r--r-- | sys/dev/zs/zs_sbus.c | 281 |
4 files changed, 398 insertions, 279 deletions
diff --git a/sys/dev/zs/z8530reg.h b/sys/dev/zs/z8530reg.h index a7abc5995de8..05508c61b8e2 100644 --- a/sys/dev/zs/z8530reg.h +++ b/sys/dev/zs/z8530reg.h @@ -90,16 +90,6 @@ */ #define ZS_NCHAN 2 -#define ZS_CHANLEN 4 - -#define ZS_CHAN_A 4 -#define ZS_CHAN_B 0 - -#define ZS_CSR 0 -#define ZS_DATA 2 - -#define ZS_CLOCK (9600 * 512) -#define ZS_CLOCK_DIV (16) #define ZSRR_IVEC 2 /* interrupt vector (channel 0) */ #define ZSRR_IPEND 3 /* interrupt pending (ch. 0 only) */ diff --git a/sys/dev/zs/z8530var.h b/sys/dev/zs/z8530var.h new file mode 100644 index 000000000000..89a246a80c90 --- /dev/null +++ b/sys/dev/zs/z8530var.h @@ -0,0 +1,77 @@ +/*- + * Copyright (c) 2003 Jake Burkholder. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _DEV_ZS_ZSVAR_H_ +#define _DEV_ZS_ZSVAR_H_ + +struct zs_softc { + device_t sc_dev; + bus_space_tag_t sc_bt; + bus_space_handle_t sc_bh; + struct zstty_softc *sc_child[ZS_NCHAN]; + void *sc_softih; +}; + +struct zstty_softc { + device_t sc_dev; + struct zs_softc *sc_parent; + bus_space_tag_t sc_bt; + bus_space_handle_t sc_csr; + bus_space_handle_t sc_data; + dev_t sc_si; + struct tty *sc_tty; + int sc_icnt; + uint8_t *sc_iput; + uint8_t *sc_iget; + int sc_ocnt; + uint8_t *sc_oget; + int sc_brg_clk; + int sc_alt_break_state; + struct mtx sc_mtx; + uint8_t sc_console; + uint8_t sc_tx_busy; + uint8_t sc_tx_done; + uint8_t sc_preg_held; + uint8_t sc_creg[16]; + uint8_t sc_preg[16]; + uint8_t sc_ibuf[CBLOCK]; + uint8_t sc_obuf[CBLOCK]; +}; + +int zs_attach(device_t dev); +int zs_probe(device_t dev); +void zs_intr(void *v); + +int zstty_attach(device_t dev); +int zstty_probe(device_t dev); + +int zstty_console(device_t dev, char *mode, int len); + +void zstty_set_speed(struct zstty_softc *sc, int ospeed); + +#endif diff --git a/sys/dev/zs/zs.c b/sys/dev/zs/zs.c index 0814569e24fe..71a20f204a47 100644 --- a/sys/dev/zs/zs.c +++ b/sys/dev/zs/zs.c @@ -96,101 +96,32 @@ #include <ddb/ddb.h> -#include <ofw/openfirm.h> -#include <sparc64/sbus/sbusvar.h> - #include <dev/zs/z8530reg.h> +#include <dev/zs/z8530var.h> #define CDEV_MAJOR 182 #define ZS_READ(sc, r) \ - bus_space_read_1((sc)->sc_bt, (sc)->sc_bh, (r)) + bus_space_read_1((sc)->sc_bt, (r), 0) #define ZS_WRITE(sc, r, v) \ - bus_space_write_1((sc)->sc_bt, (sc)->sc_bh, (r), (v)) + bus_space_write_1((sc)->sc_bt, (r), 0, (v)) #define ZS_READ_REG(sc, r) ({ \ - ZS_WRITE((sc), ZS_CSR, (r)); \ - ZS_READ((sc), ZS_CSR); \ + ZS_WRITE((sc), (sc)->sc_csr, (r)); \ + ZS_READ((sc), (sc)->sc_csr); \ }) #define ZS_WRITE_REG(sc, r, v) ({ \ - ZS_WRITE((sc), ZS_CSR, (r)); \ - ZS_WRITE((sc), ZS_CSR, (v)); \ + ZS_WRITE((sc), (sc)->sc_csr, (r)); \ + ZS_WRITE((sc), (sc)->sc_csr, (v)); \ }) #define ZSTTY_LOCK(sz) mtx_lock_spin(&(sc)->sc_mtx) #define ZSTTY_UNLOCK(sz) mtx_unlock_spin(&(sc)->sc_mtx) -struct zstty_softc { - device_t sc_dev; - struct zs_softc *sc_parent; - bus_space_tag_t sc_bt; - bus_space_handle_t sc_bh; - dev_t sc_si; - struct tty *sc_tty; - int sc_channel; - int sc_icnt; - uint8_t *sc_iput; - uint8_t *sc_iget; - int sc_ocnt; - uint8_t *sc_oget; - int sc_brg_clk; - int sc_alt_break_state; - struct mtx sc_mtx; - uint8_t sc_console; - uint8_t sc_tx_busy; - uint8_t sc_tx_done; - uint8_t sc_preg_held; - uint8_t sc_creg[16]; - uint8_t sc_preg[16]; - uint8_t sc_ibuf[CBLOCK]; - uint8_t sc_obuf[CBLOCK]; -}; - -struct zs_softc { - device_t sc_dev; - bus_space_tag_t sc_bt; - bus_space_handle_t sc_bh; - struct zstty_softc *sc_child[ZS_NCHAN]; - void *sc_ih; - void *sc_softih; - struct resource *sc_irqres; - int sc_irqrid; - struct resource *sc_memres; - int sc_memrid; -}; - -static uint8_t zs_init_reg[16] = { - 0, /* 0: CMD (reset, etc.) */ - 0, /* 1: No interrupts yet. */ - 0, /* 2: IVECT */ - ZSWR3_RX_8 | ZSWR3_RX_ENABLE, - ZSWR4_CLK_X16 | ZSWR4_ONESB | ZSWR4_EVENP, - ZSWR5_TX_8 | ZSWR5_TX_ENABLE, - 0, /* 6: TXSYNC/SYNCLO */ - 0, /* 7: RXSYNC/SYNCHI */ - 0, /* 8: alias for data port */ - ZSWR9_MASTER_IE | ZSWR9_NO_VECTOR, - 0, /* 10: Misc. TX/RX control bits */ - ZSWR11_TXCLK_BAUD | ZSWR11_RXCLK_BAUD, - ((ZS_CLOCK/32)/9600)-2, - 0, - ZSWR14_BAUD_ENA | ZSWR14_BAUD_FROM_PCLK, - ZSWR15_BREAK_IE, -}; - -static int zs_probe(device_t dev); -static int zs_attach(device_t dev); -static int zs_detach(device_t dev); - -static void zs_intr(void *v); static void zs_softintr(void *v); static void zs_shutdown(void *v); -static int zstty_probe(device_t dev); -static int zstty_attach(device_t dev); -static int zstty_detach(device_t dev); - static int zstty_intr(struct zstty_softc *sc, uint8_t rr3); static void zstty_softintr(struct zstty_softc *sc) __unused; static int zstty_mdmctrl(struct zstty_softc *sc, int bits, int how); @@ -199,8 +130,6 @@ static int zstty_param(struct zstty_softc *sc, struct tty *tp, static void zstty_flush(struct zstty_softc *sc) __unused; static int zstty_speed(struct zstty_softc *sc, int rate); static void zstty_load_regs(struct zstty_softc *sc); -static int zstty_console(device_t dev, char *mode, int len); -static int zstty_keyboard(device_t dev); static cn_probe_t zs_cnprobe; static cn_init_t zs_cninit; @@ -239,92 +168,28 @@ static struct cdevsw zstty_cdevsw = { /* kqfilter */ ttykqfilter, }; -static device_method_t zs_methods[] = { - DEVMETHOD(device_probe, zs_probe), - DEVMETHOD(device_attach, zs_attach), - DEVMETHOD(device_detach, zs_detach), - - DEVMETHOD(bus_print_child, bus_generic_print_child), - - { 0, 0 } -}; - -static device_method_t zstty_methods[] = { - DEVMETHOD(device_probe, zstty_probe), - DEVMETHOD(device_attach, zstty_attach), - DEVMETHOD(device_detach, zstty_detach), - - { 0, 0 } -}; - -static driver_t zs_driver = { - "zs", - zs_methods, - sizeof(struct zs_softc), -}; - -static driver_t zstty_driver = { - "zstty", - zstty_methods, - sizeof(struct zstty_softc), -}; - -static devclass_t zs_devclass; -static devclass_t zstty_devclass; - static struct zstty_softc *zstty_cons; -DRIVER_MODULE(zs, sbus, zs_driver, zs_devclass, 0, 0); -DRIVER_MODULE(zstty, zs, zstty_driver, zstty_devclass, 0, 0); - CONS_DRIVER(zs, zs_cnprobe, zs_cninit, zs_cnterm, zs_cngetc, zs_cncheckc, zs_cnputc, zs_cndbctl); -static int +int zs_probe(device_t dev) { - if (strcmp(sbus_get_name(dev), "zs") != 0 || - device_get_unit(dev) != 0) - return (ENXIO); device_set_desc(dev, "Zilog Z8530"); return (0); } -static int +int zs_attach(device_t dev) { struct device *child[ZS_NCHAN]; - struct resource *irqres; - struct resource *memres; struct zs_softc *sc; - int irqrid; - int memrid; int i; - irqrid = 0; - irqres = NULL; - memres = NULL; - memrid = 0; sc = device_get_softc(dev); - memres = bus_alloc_resource(dev, SYS_RES_MEMORY, &memrid, 0, ~0, 1, - RF_ACTIVE); - if (memres == NULL) - goto error; - irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &irqrid, 0, ~0, 1, - RF_ACTIVE); - if (irqres == NULL) - goto error; - if (bus_setup_intr(dev, irqres, INTR_TYPE_TTY | INTR_FAST, zs_intr, - sc, &sc->sc_ih) != 0) - goto error; sc->sc_dev = dev; - sc->sc_irqres = irqres; - sc->sc_irqrid = irqrid; - sc->sc_memres = memres; - sc->sc_memrid = memrid; - sc->sc_bt = rman_get_bustag(memres); - sc->sc_bh = rman_get_bushandle(memres); for (i = 0; i < ZS_NCHAN; i++) child[i] = device_add_child(dev, "zstty", -1); @@ -335,8 +200,8 @@ zs_attach(device_t dev) swi_add(&tty_ithd, "tty:zs", zs_softintr, sc, SWI_TTY, INTR_TYPE_TTY, &sc->sc_softih); - ZS_WRITE_REG(sc->sc_child[0], 2, zs_init_reg[2]); - ZS_WRITE_REG(sc->sc_child[0], 9, zs_init_reg[9]); + ZS_WRITE_REG(sc->sc_child[0], 2, sc->sc_child[0]->sc_creg[2]); + ZS_WRITE_REG(sc->sc_child[0], 9, sc->sc_child[0]->sc_creg[9]); if (zstty_cons != NULL) { DELAY(50000); @@ -347,23 +212,9 @@ zs_attach(device_t dev) SHUTDOWN_PRI_DEFAULT); return (0); - -error: - if (irqres != NULL) - bus_release_resource(dev, SYS_RES_IRQ, irqrid, irqres); - if (memres != NULL) - bus_release_resource(dev, SYS_RES_MEMORY, memrid, memres); - return (ENXIO); } -static int -zs_detach(device_t dev) -{ - - return (bus_generic_detach(dev)); -} - -static void +void zs_intr(void *v) { struct zs_softc *sc = v; @@ -378,14 +229,10 @@ zs_intr(void *v) */ needsoft = 0; rr3 = ZS_READ_REG(sc->sc_child[0], 3); - if ((rr3 & (ZSRR3_IP_A_RX | ZSRR3_IP_A_TX | ZSRR3_IP_A_STAT)) != 0) { - ZS_WRITE(sc->sc_child[0], ZS_CSR, ZSWR0_CLR_INTR); + if ((rr3 & (ZSRR3_IP_A_RX | ZSRR3_IP_A_TX | ZSRR3_IP_A_STAT)) != 0) needsoft |= zstty_intr(sc->sc_child[0], rr3 >> 3); - } - if ((rr3 & (ZSRR3_IP_B_RX | ZSRR3_IP_B_TX | ZSRR3_IP_B_STAT)) != 0) { - ZS_WRITE(sc->sc_child[1], ZS_CSR, ZSWR0_CLR_INTR); + if ((rr3 & (ZSRR3_IP_B_RX | ZSRR3_IP_B_TX | ZSRR3_IP_B_STAT)) != 0) needsoft |= zstty_intr(sc->sc_child[1], rr3); - } if (needsoft) swi_sched(sc->sc_softih, 0); } @@ -404,25 +251,13 @@ zs_shutdown(void *v) { } -static int +int zstty_probe(device_t dev) { - - if (zstty_keyboard(dev)) { - if ((device_get_unit(dev) & 1) == 0) - device_set_desc(dev, "keyboard"); - else - device_set_desc(dev, "mouse"); - } else { - if ((device_get_unit(dev) & 1) == 0) - device_set_desc(dev, "ttya"); - else - device_set_desc(dev, "ttyb"); - } return (0); } -static int +int zstty_attach(device_t dev) { struct zstty_softc *sc; @@ -437,24 +272,9 @@ zstty_attach(device_t dev) sc = device_get_softc(dev); mtx_init(&sc->sc_mtx, "zstty", NULL, MTX_SPIN); sc->sc_dev = dev; - sc->sc_parent = device_get_softc(device_get_parent(dev)); - sc->sc_bt = sc->sc_parent->sc_bt; - sc->sc_channel = device_get_unit(dev) & 1; - sc->sc_brg_clk = ZS_CLOCK / ZS_CLOCK_DIV; sc->sc_iput = sc->sc_iget = sc->sc_ibuf; sc->sc_oget = sc->sc_obuf; - switch (sc->sc_channel) { - case 0: - bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh, - ZS_CHAN_A, ZS_CHANLEN, &sc->sc_bh); - break; - case 1: - bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh, - ZS_CHAN_B, ZS_CHANLEN, &sc->sc_bh); - break; - } - tp = ttymalloc(NULL); sc->sc_si = make_dev(&zstty_cdevsw, device_get_unit(dev), UID_ROOT, GID_WHEEL, 0600, "%s", device_get_desc(dev)); @@ -473,11 +293,9 @@ zstty_attach(device_t dev) tp->t_ospeed = TTYDEF_SPEED; tp->t_ispeed = TTYDEF_SPEED; - bcopy(zs_init_reg, sc->sc_creg, 16); - bcopy(zs_init_reg, sc->sc_preg, 16); - if (zstty_console(dev, mode, sizeof(mode))) { ttychars(tp); + /* format: 9600,8,n,1,- */ if (sscanf(mode, "%d,%d,%c,%d,%c", &baud, &clen, &parity, &stop, &c) == 5) { tp->t_ospeed = baud; @@ -515,13 +333,6 @@ zstty_attach(device_t dev) return (0); } -static int -zstty_detach(device_t dev) -{ - - return (bus_generic_detach(dev)); -} - /* * Note that the rr3 value is shifted so the channel a status bits are in the * channel b bit positions, which makes the bit positions uniform for both @@ -538,6 +349,8 @@ zstty_intr(struct zstty_softc *sc, uint8_t rr3) ZSTTY_LOCK(sc); + ZS_WRITE(sc, sc->sc_csr, ZSWR0_CLR_INTR); + brk = 0; needsoft = 0; if ((rr3 & ZSRR3_IP_B_RX) != 0) { @@ -548,10 +361,10 @@ zstty_intr(struct zstty_softc *sc, uint8_t rr3) * char destroys the status of this char. */ rr1 = ZS_READ_REG(sc, 1); - c = ZS_READ(sc, ZS_DATA); + c = ZS_READ(sc, sc->sc_data); if ((rr1 & (ZSRR1_FE | ZSRR1_DO | ZSRR1_PE)) != 0) - ZS_WRITE(sc, ZS_CSR, ZSWR0_RESET_ERRORS); + ZS_WRITE(sc, sc->sc_csr, ZSWR0_RESET_ERRORS); #if defined(DDB) && defined(ALT_BREAK_TO_DEBUGGER) if (sc->sc_console != 0) brk = db_alt_break(c, &sc->sc_alt_break_state); @@ -560,12 +373,12 @@ zstty_intr(struct zstty_softc *sc, uint8_t rr3) *sc->sc_iput++ = rr1; if (sc->sc_iput == sc->sc_ibuf + sizeof(sc->sc_ibuf)) sc->sc_iput = sc->sc_ibuf; - } while ((ZS_READ(sc, ZS_CSR) & ZSRR0_RX_READY) != 0); + } while ((ZS_READ(sc, sc->sc_csr) & ZSRR0_RX_READY) != 0); } if ((rr3 & ZSRR3_IP_B_STAT) != 0) { - rr0 = ZS_READ(sc, ZS_CSR); - ZS_WRITE(sc, ZS_CSR, ZSWR0_RESET_STATUS); + rr0 = ZS_READ(sc, sc->sc_csr); + ZS_WRITE(sc, sc->sc_csr, ZSWR0_RESET_STATUS); #if defined(DDB) && defined(BREAK_TO_DEBUGGER) if (sc->sc_console != 0 && (rr0 & ZSRR0_BREAK) != 0) brk = 1; @@ -582,7 +395,7 @@ zstty_intr(struct zstty_softc *sc, uint8_t rr3) zstty_load_regs(sc); } if (sc->sc_ocnt > 0) { - ZS_WRITE(sc, ZS_DATA, *sc->sc_oget++); + ZS_WRITE(sc, sc->sc_data, *sc->sc_oget++); sc->sc_ocnt--; } else { /* @@ -815,7 +628,7 @@ zsttystart(struct tty *tp) sc->sc_creg[1] = sc->sc_preg[1]; ZS_WRITE_REG(sc, 1, sc->sc_creg[1]); } - ZS_WRITE(sc, ZS_DATA, c); + ZS_WRITE(sc, sc->sc_data, c); ttwwakeup(tp); } @@ -928,8 +741,8 @@ zstty_param(struct zstty_softc *sc, struct tty *tp, struct termios *t) sc->sc_preg[3] = wr3; sc->sc_preg[4] = wr4; sc->sc_preg[5] = wr5; - sc->sc_preg[12] = ospeed; - sc->sc_preg[13] = ospeed >> 8; + + zstty_set_speed(sc, ospeed); if (cflag & CRTSCTS) sc->sc_preg[15] |= ZSWR15_CTS_IE; @@ -951,15 +764,15 @@ zstty_flush(struct zstty_softc *sc) uint8_t c; for (;;) { - rr0 = ZS_READ(sc, ZS_CSR); + rr0 = ZS_READ(sc, sc->sc_csr); if ((rr0 & ZSRR0_RX_READY) == 0) break; rr1 = ZS_READ_REG(sc, 1); - c = ZS_READ(sc, ZS_DATA); + c = ZS_READ(sc, sc->sc_data); if (rr1 & (ZSRR1_FE | ZSRR1_DO | ZSRR1_PE)) - ZS_WRITE(sc, ZS_CSR, ZSWR0_RESET_ERRORS); + ZS_WRITE(sc, sc->sc_data, ZSWR0_RESET_ERRORS); } } @@ -984,7 +797,7 @@ zstty_load_regs(struct zstty_softc *sc) bcopy(sc->sc_preg, sc->sc_creg, 16); /* XXX: reset error condition */ - ZS_WRITE(sc, ZS_CSR, ZSM_RESET_ERR); + ZS_WRITE(sc, sc->sc_csr, ZSM_RESET_ERR); /* disable interrupts */ ZS_WRITE_REG(sc, 1, sc->sc_creg[1] & ~ZSWR1_IMASK); @@ -1021,8 +834,8 @@ zstty_load_regs(struct zstty_softc *sc) * interrupt clear might unlatch them to new values, generating * a second interrupt request. */ - ZS_WRITE(sc, ZS_CSR, ZSM_RESET_STINT); - ZS_WRITE(sc, ZS_CSR, ZSM_RESET_STINT); + ZS_WRITE(sc, sc->sc_csr, ZSM_RESET_STINT); + ZS_WRITE(sc, sc->sc_csr, ZSM_RESET_STINT); /* char size, enable (RX/TX)*/ ZS_WRITE_REG(sc, 3, sc->sc_creg[3]); @@ -1120,9 +933,9 @@ zstty_cngetc(struct zstty_softc *sc) uint8_t c; zstty_cnopen(sc); - while ((ZS_READ(sc, ZS_CSR) & ZSRR0_RX_READY) == 0) + while ((ZS_READ(sc, sc->sc_csr) & ZSRR0_RX_READY) == 0) ; - c = ZS_READ(sc, ZS_DATA); + c = ZS_READ(sc, sc->sc_data); zstty_cnclose(sc); return (c); } @@ -1134,8 +947,8 @@ zstty_cncheckc(struct zstty_softc *sc) c = -1; zstty_cnopen(sc); - if ((ZS_READ(sc, ZS_CSR) & ZSRR0_RX_READY) != 0) - c = ZS_READ(sc, ZS_DATA); + if ((ZS_READ(sc, sc->sc_csr) & ZSRR0_RX_READY) != 0) + c = ZS_READ(sc, sc->sc_data); zstty_cnclose(sc); return (c); } @@ -1145,50 +958,8 @@ zstty_cnputc(struct zstty_softc *sc, int c) { zstty_cnopen(sc); - while ((ZS_READ(sc, ZS_CSR) & ZSRR0_TX_READY) == 0) + while ((ZS_READ(sc, sc->sc_csr) & ZSRR0_TX_READY) == 0) ; - ZS_WRITE(sc, ZS_DATA, c); + ZS_WRITE(sc, sc->sc_data, c); zstty_cnclose(sc); } - -static int -zstty_console(device_t dev, char *mode, int len) -{ - device_t parent; - phandle_t chosen; - phandle_t options; - ihandle_t stdin; - ihandle_t stdout; - char output[32]; - char input[32]; - char name[32]; - - parent = device_get_parent(dev); - chosen = OF_finddevice("/chosen"); - options = OF_finddevice("/options"); - if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) == -1 || - OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) == -1 || - OF_getprop(options, "input-device", input, sizeof(input)) == -1 || - OF_getprop(options, "output-device", output, sizeof(output)) == -1) - return (0); - if (sbus_get_node(parent) == OF_instance_to_package(stdin) && - sbus_get_node(parent) == OF_instance_to_package(stdout) && - strcmp(input, device_get_desc(dev)) == 0 && - strcmp(output, device_get_desc(dev)) == 0) { - if (mode != NULL) { - sprintf(name, "%s-mode", input); - return (OF_getprop(options, name, mode, len) != -1); - } else - return (1); - } - return (0); -} - -static int -zstty_keyboard(device_t dev) -{ - device_t parent; - - parent = device_get_parent(dev); - return (OF_getproplen(sbus_get_node(parent), "keyboard") == 0); -} diff --git a/sys/dev/zs/zs_sbus.c b/sys/dev/zs/zs_sbus.c new file mode 100644 index 000000000000..a3e3ddfcd880 --- /dev/null +++ b/sys/dev/zs/zs_sbus.c @@ -0,0 +1,281 @@ +/*- + * Copyright (c) 2003 Jake Burkholder. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/interrupt.h> +#include <sys/kernel.h> +#include <sys/lock.h> +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/rman.h> + +#include <ofw/openfirm.h> +#include <sparc64/sbus/sbusvar.h> + +#include <dev/zs/z8530reg.h> +#include <dev/zs/z8530var.h> + +#define ZS_SBUS_CHAN_A 4 +#define ZS_SBUS_CHAN_B 0 + +#define ZS_SBUS_CSR 0 +#define ZS_SBUS_DATA 2 + +#define ZS_SBUS_CLOCK (9600 * 512) +#define ZS_SBUS_CLOCK_DIV (16) + +#define ZS_SBUS_DEF_SPEED (9600) + +struct zs_sbus_softc { + struct zs_softc sc_zs; + struct resource *sc_irqres; + int sc_irqrid; + void *sc_ih; + struct resource *sc_memres; + int sc_memrid; +}; + +static int zs_sbus_attach(device_t dev); +static int zs_sbus_detach(device_t dev); +static int zs_sbus_probe(device_t dev); + +static int zstty_sbus_attach(device_t dev); +static int zstty_sbus_probe(device_t dev); + +static int zstty_keyboard(device_t dev); + +static device_method_t zs_sbus_methods[] = { + DEVMETHOD(device_probe, zs_sbus_probe), + DEVMETHOD(device_attach, zs_sbus_attach), + DEVMETHOD(device_detach, zs_sbus_detach), + + DEVMETHOD(bus_print_child, bus_generic_print_child), + + { 0, 0 } +}; + +static device_method_t zstty_sbus_methods[] = { + DEVMETHOD(device_probe, zstty_sbus_probe), + DEVMETHOD(device_attach, zstty_sbus_attach), + DEVMETHOD(device_detach, bus_generic_detach), + + { 0, 0 } +}; + +static driver_t zs_sbus_driver = { + "zs", + zs_sbus_methods, + sizeof(struct zs_sbus_softc), +}; + +static driver_t zstty_sbus_driver = { + "zstty", + zstty_sbus_methods, + sizeof(struct zstty_softc), +}; + +static devclass_t zs_sbus_devclass; +static devclass_t zstty_sbus_devclass; + +DRIVER_MODULE(zstty, zs, zstty_sbus_driver, zstty_sbus_devclass, 0, 0); +DRIVER_MODULE(zs, sbus, zs_sbus_driver, zs_sbus_devclass, 0, 0); + +static uint8_t zs_sbus_init_reg[16] = { + 0, /* 0: CMD (reset, etc.) */ + 0, /* 1: No interrupts yet. */ + 0, /* 2: IVECT */ + ZSWR3_RX_8 | ZSWR3_RX_ENABLE, + ZSWR4_CLK_X16 | ZSWR4_ONESB | ZSWR4_EVENP, + ZSWR5_TX_8 | ZSWR5_TX_ENABLE, + 0, /* 6: TXSYNC/SYNCLO */ + 0, /* 7: RXSYNC/SYNCHI */ + 0, /* 8: alias for data port */ + ZSWR9_MASTER_IE | ZSWR9_NO_VECTOR, + 0, /* 10: Misc. TX/RX control bits */ + ZSWR11_TXCLK_BAUD | ZSWR11_RXCLK_BAUD, + ((ZS_SBUS_CLOCK/32)/ZS_SBUS_DEF_SPEED)-2, + 0, + ZSWR14_BAUD_ENA | ZSWR14_BAUD_FROM_PCLK, + ZSWR15_BREAK_IE, +}; + + +static int +zs_sbus_probe(device_t dev) +{ + + if (strcmp(sbus_get_name(dev), "zs") != 0 || + device_get_unit(dev) != 0) + return (ENXIO); + return (zs_probe(dev)); +} + +static int +zs_sbus_attach(device_t dev) +{ + struct zs_sbus_softc *sc; + + sc = device_get_softc(dev); + sc->sc_memres = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->sc_memrid, + 0, ~0, 1, RF_ACTIVE); + if (sc->sc_memres == NULL) + goto error; + sc->sc_irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->sc_irqrid, 0, + ~0, 1, RF_ACTIVE); + if (sc->sc_irqres == NULL) + goto error; + if (bus_setup_intr(dev, sc->sc_irqres, INTR_TYPE_TTY | INTR_FAST, + zs_intr, sc, &sc->sc_ih) != 0) + goto error; + sc->sc_zs.sc_bt = rman_get_bustag(sc->sc_memres); + sc->sc_zs.sc_bh = rman_get_bushandle(sc->sc_memres); + return (zs_attach(dev)); + +error: + zs_sbus_detach(dev); + return (ENXIO); +} + +static int +zs_sbus_detach(device_t dev) +{ + struct zs_sbus_softc *sc; + + sc = device_get_softc(dev); + if (sc->sc_irqres != NULL) { + if (sc->sc_ih != NULL) + bus_teardown_intr(dev, sc->sc_irqres, sc->sc_ih); + bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, + sc->sc_irqres); + } + if (sc->sc_memres != NULL) + bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, + sc->sc_memres); + return (0); +} + +static int +zstty_sbus_probe(device_t dev) +{ + + if (zstty_keyboard(dev)) { + if ((device_get_unit(dev) & 1) == 0) + device_set_desc(dev, "keyboard"); + else + device_set_desc(dev, "mouse"); + } else { + if ((device_get_unit(dev) & 1) == 0) + device_set_desc(dev, "ttya"); + else + device_set_desc(dev, "ttyb"); + } + return (zstty_probe(dev)); +} + +static int +zstty_sbus_attach(device_t dev) +{ + struct zstty_softc *sc; + + sc = device_get_softc(dev); + sc->sc_parent = device_get_softc(device_get_parent(dev)); + sc->sc_bt = sc->sc_parent->sc_bt; + sc->sc_brg_clk = ZS_SBUS_CLOCK / ZS_SBUS_CLOCK_DIV; + + switch (device_get_unit(dev) & 1) { + case 0: + bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh, + ZS_SBUS_CHAN_A + ZS_SBUS_CSR, 1, &sc->sc_csr); + bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh, + ZS_SBUS_CHAN_A + ZS_SBUS_DATA, 1, &sc->sc_data); + break; + case 1: + bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh, + ZS_SBUS_CHAN_B + ZS_SBUS_CSR, 1, &sc->sc_csr); + bus_space_subregion(sc->sc_bt, sc->sc_parent->sc_bh, + ZS_SBUS_CHAN_B + ZS_SBUS_DATA, 1, &sc->sc_data); + break; + } + + bcopy(zs_sbus_init_reg, sc->sc_creg, 16); + bcopy(zs_sbus_init_reg, sc->sc_preg, 16); + + return (zstty_attach(dev)); +} + +void +zstty_set_speed(struct zstty_softc *sc, int ospeed) +{ + + sc->sc_preg[12] = ospeed; + sc->sc_preg[13] = ospeed >> 8; +} + +int +zstty_console(device_t dev, char *mode, int len) +{ + device_t parent; + phandle_t chosen; + phandle_t options; + ihandle_t stdin; + ihandle_t stdout; + char output[32]; + char input[32]; + char name[32]; + + parent = device_get_parent(dev); + chosen = OF_finddevice("/chosen"); + options = OF_finddevice("/options"); + if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) == -1 || + OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) == -1 || + OF_getprop(options, "input-device", input, sizeof(input)) == -1 || + OF_getprop(options, "output-device", output, sizeof(output)) == -1) + return (0); + if (sbus_get_node(parent) == OF_instance_to_package(stdin) && + sbus_get_node(parent) == OF_instance_to_package(stdout) && + strcmp(input, device_get_desc(dev)) == 0 && + strcmp(output, device_get_desc(dev)) == 0) { + if (mode != NULL) { + sprintf(name, "%s-mode", input); + return (OF_getprop(options, name, mode, len) != -1); + } else + return (1); + } + return (0); +} + +static int +zstty_keyboard(device_t dev) +{ + device_t parent; + + parent = device_get_parent(dev); + return (OF_getproplen(sbus_get_node(parent), "keyboard") == 0); +} |