diff options
| -rw-r--r-- | drivers/macintosh/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/macintosh/via-pmu.c | 101 |
2 files changed, 91 insertions, 12 deletions
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig index 97a420c11eed..9c6452b38c36 100644 --- a/drivers/macintosh/Kconfig +++ b/drivers/macintosh/Kconfig @@ -65,7 +65,7 @@ config ADB_CUDA If unsure say Y. config ADB_PMU - bool "Support for PMU based PowerMacs" + bool "Support for PMU based PowerMacs and PowerBooks" depends on PPC_PMAC help On PowerBooks, iBooks, and recent iMacs and Power Macintoshes, the diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index 2557f3e49f18..a68e7a6f00cc 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 /* - * Device driver for the via-pmu on Apple Powermacs. + * Device driver for the PMU in Apple PowerBooks and PowerMacs. * * The VIA (versatile interface adapter) interfaces to the PMU, * a 6805 microprocessor core whose primary function is to control @@ -49,20 +49,26 @@ #include <linux/compat.h> #include <linux/of_address.h> #include <linux/of_irq.h> -#include <asm/prom.h> +#include <linux/uaccess.h> #include <asm/machdep.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/sections.h> #include <asm/irq.h> +#ifdef CONFIG_PPC_PMAC #include <asm/pmac_feature.h> #include <asm/pmac_pfunc.h> #include <asm/pmac_low_i2c.h> -#include <linux/uaccess.h> +#include <asm/prom.h> #include <asm/mmu_context.h> #include <asm/cputable.h> #include <asm/time.h> #include <asm/backlight.h> +#else +#include <asm/macintosh.h> +#include <asm/macints.h> +#include <asm/mac_via.h> +#endif #include "via-pmu-event.h" @@ -97,8 +103,13 @@ static DEFINE_MUTEX(pmu_info_proc_mutex); #define ANH (15*RS) /* A-side data, no handshake */ /* Bits in B data register: both active low */ +#ifdef CONFIG_PPC_PMAC #define TACK 0x08 /* Transfer acknowledge (input) */ #define TREQ 0x10 /* Transfer request (output) */ +#else +#define TACK 0x02 +#define TREQ 0x04 +#endif /* Bits in ACR */ #define SR_CTRL 0x1c /* Shift register control bits */ @@ -140,13 +151,15 @@ static int data_index; static int data_len; static volatile int adb_int_pending; static volatile int disable_poll; -static struct device_node *vias; static int pmu_kind = PMU_UNKNOWN; static int pmu_fully_inited; static int pmu_has_adb; +#ifdef CONFIG_PPC_PMAC static volatile unsigned char __iomem *via1; static volatile unsigned char __iomem *via2; +static struct device_node *vias; static struct device_node *gpio_node; +#endif static unsigned char __iomem *gpio_reg; static int gpio_irq = 0; static int gpio_irq_enabled = -1; @@ -273,6 +286,7 @@ static char *pbook_type[] = { int __init find_via_pmu(void) { +#ifdef CONFIG_PPC_PMAC u64 taddr; const u32 *reg; @@ -355,9 +369,6 @@ int __init find_via_pmu(void) if (!init_pmu()) goto fail_init; - printk(KERN_INFO "PMU driver v%d initialized for %s, firmware: %02x\n", - PMU_DRIVER_VERSION, pbook_type[pmu_kind], pmu_version); - sys_ctrler = SYS_CTRLER_PMU; return 1; @@ -373,6 +384,30 @@ int __init find_via_pmu(void) vias = NULL; pmu_state = uninitialized; return 0; +#else + if (macintosh_config->adb_type != MAC_ADB_PB2) + return 0; + + pmu_kind = PMU_UNKNOWN; + + spin_lock_init(&pmu_lock); + + pmu_has_adb = 1; + + pmu_intr_mask = PMU_INT_PCEJECT | + PMU_INT_SNDBRT | + PMU_INT_ADB | + PMU_INT_TICK; + + pmu_state = idle; + + if (!init_pmu()) { + pmu_state = uninitialized; + return 0; + } + + return 1; +#endif /* !CONFIG_PPC_PMAC */ } #ifdef CONFIG_ADB @@ -396,13 +431,14 @@ static int pmu_init(void) */ static int __init via_pmu_start(void) { - unsigned int irq; + unsigned int __maybe_unused irq; if (pmu_state == uninitialized) return -ENODEV; batt_req.complete = 1; +#ifdef CONFIG_PPC_PMAC irq = irq_of_parse_and_map(vias, 0); if (!irq) { printk(KERN_ERR "via-pmu: can't map interrupt\n"); @@ -439,6 +475,19 @@ static int __init via_pmu_start(void) /* Enable interrupts */ out_8(&via1[IER], IER_SET | SR_INT | CB1_INT); +#else + if (request_irq(IRQ_MAC_ADB_SR, via_pmu_interrupt, IRQF_NO_SUSPEND, + "VIA-PMU-SR", NULL)) { + pr_err("%s: couldn't get SR irq\n", __func__); + return -ENODEV; + } + if (request_irq(IRQ_MAC_ADB_CL, via_pmu_interrupt, IRQF_NO_SUSPEND, + "VIA-PMU-CL", NULL)) { + pr_err("%s: couldn't get CL irq\n", __func__); + free_irq(IRQ_MAC_ADB_SR, NULL); + return -ENODEV; + } +#endif /* !CONFIG_PPC_PMAC */ pmu_fully_inited = 1; @@ -589,6 +638,10 @@ init_pmu(void) option_server_mode ? "enabled" : "disabled"); } } + + printk(KERN_INFO "PMU driver v%d initialized for %s, firmware: %02x\n", + PMU_DRIVER_VERSION, pbook_type[pmu_kind], pmu_version); + return 1; } @@ -627,6 +680,7 @@ static void pmu_set_server_mode(int server_mode) static void done_battery_state_ohare(struct adb_request* req) { +#ifdef CONFIG_PPC_PMAC /* format: * [0] : flags * 0x01 : AC indicator @@ -708,6 +762,7 @@ done_battery_state_ohare(struct adb_request* req) pmu_batteries[pmu_cur_battery].amperage = amperage; pmu_batteries[pmu_cur_battery].voltage = voltage; pmu_batteries[pmu_cur_battery].time_remaining = time; +#endif /* CONFIG_PPC_PMAC */ clear_bit(0, &async_req_locks); } @@ -1356,6 +1411,7 @@ next: } pmu_done(req); } else { +#ifdef CONFIG_XMON if (len == 4 && data[1] == 0x2c) { extern int xmon_wants_key, xmon_adb_keycode; if (xmon_wants_key) { @@ -1363,6 +1419,7 @@ next: return; } } +#endif /* CONFIG_XMON */ #ifdef CONFIG_ADB /* * XXX On the [23]400 the PMU gives us an up @@ -1530,7 +1587,25 @@ via_pmu_interrupt(int irq, void *arg) ++disable_poll; for (;;) { - intr = in_8(&via1[IFR]) & (SR_INT | CB1_INT); + /* On 68k Macs, VIA interrupts are dispatched individually. + * Unless we are polling, the relevant IRQ flag has already + * been cleared. + */ + intr = 0; + if (IS_ENABLED(CONFIG_PPC_PMAC) || !irq) { + intr = in_8(&via1[IFR]) & (SR_INT | CB1_INT); + out_8(&via1[IFR], intr); + } +#ifndef CONFIG_PPC_PMAC + switch (irq) { + case IRQ_MAC_ADB_CL: + intr = CB1_INT; + break; + case IRQ_MAC_ADB_SR: + intr = SR_INT; + break; + } +#endif if (intr == 0) break; handled = 1; @@ -1540,7 +1615,6 @@ via_pmu_interrupt(int irq, void *arg) intr, in_8(&via1[IER]), pmu_state); break; } - out_8(&via1[IFR], intr); if (intr & CB1_INT) { adb_int_pending = 1; pmu_irq_stats[0]++; @@ -1550,6 +1624,9 @@ via_pmu_interrupt(int irq, void *arg) if (req) break; } +#ifndef CONFIG_PPC_PMAC + break; +#endif } recheck: @@ -1616,7 +1693,7 @@ pmu_unlock(void) } -static irqreturn_t +static __maybe_unused irqreturn_t gpio1_interrupt(int irq, void *arg) { unsigned long flags; @@ -2250,6 +2327,7 @@ static int pmu_ioctl(struct file *filp, int error = -EINVAL; switch (cmd) { +#ifdef CONFIG_PPC_PMAC case PMU_IOC_SLEEP: if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -2259,6 +2337,7 @@ static int pmu_ioctl(struct file *filp, return put_user(0, argp); else return put_user(1, argp); +#endif #ifdef CONFIG_PMAC_BACKLIGHT_LEGACY /* Compatibility ioctl's for backlight */ |